Glass bottle air tightness detection device

Abstract

The invention relates to the technical field of air tightness detection, and particularly discloses a glass bottle air tightness detection device which comprises an intermittent rotary table arranged on a workbench, a feeding station, a detection station, an unqualified product discharging station and a qualified product discharging station are arranged on the periphery of the intermittent rotary table, and a detection mechanism is arranged at the detection station. An unqualified product grabbing mechanism is arranged at the unqualified product discharging station, and a qualified product grabbing mechanism is arranged at the qualified product discharging station. The intermittent rotary table drives the glass bottles to continuously rotate among the feeding station, the detection station, the unqualified product discharging station and the qualified product discharging station, feeding and air tightness detection of the glass bottles are achieved, different actions are executed according to detection results, the continuous and automatic effect of feeding, detection and discharging of the glass bottles is achieved, and the production efficiency is improved. And the detection efficiency and the automation level are improved.

Description

Technical Field

[0001] The invention relates to the technical field of air tightness detection, and in particular to an air tightness detection device for a glass bottle. Background Art

[0002] Glass bottles are one of the containers frequently used in daily life, and the air tightness of glass bottles is one of its important characteristics. If the air tightness is poor, medicines, beverages or chemicals stored in the glass bottles will deteriorate, affecting the quality of the products in the glass bottles. Therefore, glass bottles need to be strictly tested for air tightness during the production and processing process or before leaving the factory to ensure the qualification of the glass bottles. The commonly used detection method is to ventilate the glass bottles after immersing them in water, and detect the air tightness by observing whether there are bubbles on the outside of the glass bottles. The detection method is complicated and the operation process is cumbersome. When the bubbles are small, it is not easy to observe, which is easy to cause omissions and lead to detection errors. In addition, manual cooperation is often required in the detection process to realize the loading and unloading of glass bottles and the picking of unqualified products. The detection efficiency is low, time-consuming and labor-intensive, and the degree of automation is low.

[0003] Therefore, it is necessary to propose a glass bottle air tightness detection device to overcome the defects of the prior art. Summary of the invention

[0004] The purpose of the present invention is to solve the problems in the prior art and provide a glass bottle airtightness detection device.

[0005] The technical solution of the present invention is: A glass bottle air tightness detection device comprises a workbench, an intermittent turntable is arranged on the workbench, a loading station, a detection station, a defective product unloading station and a qualified product unloading station are arranged in sequence around the outer circumference of the intermittent turntable, the loading station is used to realize the transfer of glass bottles to the intermittent turntable, a detection mechanism is arranged at the detection station, the detection mechanism is used to perform air tightness detection on the glass bottles and upload the detection results, a defective product grabbing mechanism is arranged at the defective product unloading station, the defective product grabbing mechanism is used to realize the grabbing and transfer of glass bottles that fail the detection from the intermittent turntable, a qualified product grabbing mechanism is arranged at the qualified product unloading station, the qualified product grabbing mechanism is used to realize the grabbing and transfer of glass bottles that pass the detection from the intermittent turntable, and the defective product grabbing mechanism and the qualified product grabbing mechanism adopt the same structure.

[0006] Preferably, the detection mechanism includes a first column, a detection lifting cylinder, a linear guide rail, a detection lifting plate, a detection seat and a detection rod, a detection mounting plate is provided at the upper end of the first column, the detection lifting cylinder is provided above the detection mounting plate, two linear guide rails are symmetrically provided on the detection mounting plate, the detection lifting plate is provided on the two linear guide rails and connected to the protruding end of the detection lifting cylinder, the detection seat is provided on the detection lifting plate, the detection rod is inserted into and slidably provided on the detection seat, an axially through-going air vent is provided inside the detection rod, an air inlet joint is provided at the top of the detection rod, a sealing head is provided at the bottom of the detection rod, and a first spring is provided on the detection rod.

[0007] Preferably, the sealing head is made of a soft material, and a through hole connected to the vent hole is provided on the sealing head.

[0008] Preferably, the grabbing mechanism includes a second column, a movable cylinder, a movable guide rail, a movable seat, a grabbing lifting cylinder and a grabbing clamp, the movable cylinder and the movable guide rail are both arranged on the second column, the movable seat is connected to the movable cylinder and the movable guide rail, the grabbing lifting cylinder is arranged on the movable seat, and the grabbing clamp is arranged at the protruding end of the grabbing lifting cylinder.

[0009] Preferably, the grabbing fixture includes a fixture bracket, a grabbing cylinder, a fixture seat, a pull rod and a plurality of clamping claws. The fixture bracket is arranged on the grabbing lifting cylinder, the grabbing cylinder is arranged on the top of the fixture bracket, a connecting plate is connected to the grabbing cylinder, the fixture seat is arranged at the bottom of the fixture bracket, a plurality of hinged seats are arranged in a circular array on the surface of the fixture seat facing away from the fixture bracket, a plurality of clamping claws are hinged on the hinged seats one by one, the upper end of the pull rod passes upward through the fixture seat and is connected to the connecting plate, the lower end of the pull rod is hinged to the upper end of the clamping claw through a connecting rod, and a clamping block is arranged at the lower end of the clamping claw.

[0010] Preferably, the intermittent turntable includes a cam divider and a dividing plate, the cam divider is arranged on the workbench, the dividing plate is arranged on the cam divider, a plurality of positioning slots are evenly distributed on the circumference of the dividing plate, and the inner surfaces of the positioning slots are provided with protective pads.

[0011] Preferably, a limiting mechanism is provided on the workbench, which includes a limiting baffle and a plurality of limiting seats. The plurality of limiting seats are arranged on the workbench at intervals, and the limiting baffle is semi-enclosed on the outer side of the dividing plate. The limiting baffle is connected to the limiting seat through a limiting guide shaft, and a second spring is sleeved on the limiting guide shaft.

[0012] Preferably, both the unqualified product unloading station and the qualified product unloading station are provided with a jacking mechanism, the jacking mechanism comprises a jacking cylinder and a jacking seat, the fixed end of the jacking cylinder is arranged on the workbench, and the jacking seat is connected to the protruding end of the jacking cylinder.

[0013] Preferably, a loading conveyor line corresponding to the loading station, a defective product conveyor line corresponding to the defective product unloading station, and a qualified product conveyor line corresponding to the qualified product unloading station are respectively provided on the outside of the workbench, and the loading conveyor line, the defective product conveyor line and the qualified product conveyor line adopt the same structure.

[0014] Preferably, a control box is provided on the workbench, and the intermittent turntable, the detection mechanism, the unqualified product grabbing mechanism, the qualified product grabbing mechanism, the lifting mechanism, the feeding conveyor line, the unqualified product conveyor line and the qualified product conveyor line are all electrically connected to the control box.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. The intermittent turntable drives the glass bottles to rotate continuously between the loading station, the testing station, the unloading station for unqualified products and the unloading station for qualified products, so as to realize the loading and airtightness testing of the glass bottles, and perform different actions according to the test results, thus realizing the continuous automation of the loading, testing and unloading of the glass bottles, and improving the efficiency and automation level of the testing; 2. The detection lifting cylinder drives the detection rod and the sealing head to press the mouth of the glass bottle, and the sealing head is sealed by deformation. The air inlet joint introduces compressed gas into the glass bottle through the air inlet hole and the through hole to perform air tightness detection, and upload the detection data. When the detection rod presses the glass bottle, it compresses the first spring to make the detection rod move in the opposite direction relative to the glass bottle, reducing the pressure on the glass bottle, avoiding the glass bottle from being broken due to excessive pressure, and improving the safety of the detection mechanism; 3. The grabbing cylinder realizes the grabbing of glass bottles through the connecting plate, pull rod, connecting rod and clamping claw. When grabbing, the lifting cylinder lifts up the glass bottle to expand the grabbing range of the glass bottle and facilitate the grabbing. The clamping block is made of soft material and deforms during grabbing, which increases the friction between the glass bottle and the clamping block to ensure the stability of the grabbing and reduce the force of the clamping claw on the glass bottle to avoid damage to the glass bottle. The moving cylinder drives the grabbing fixture to move and transpose, and the glass bottle is grabbed and placed on the conveyor line to realize the conveying of the glass bottle. 4. When the cam divider drives the glass bottle to rotate between each station through the indexing plate, the glass bottle is restricted in the positioning slot through the limit baffle to ensure the accuracy of the position of the glass bottle and improve the accuracy of glass bottle detection and grasping. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the top view structure of the present invention; Figure 3 It is a schematic diagram of the structure of the detection mechanism of the present invention; Figure 4 The structure of the qualified product grabbing mechanism of the present invention is shown in FIG. Figure 1 ; Figure 5 The structure of the qualified product grabbing mechanism of the present invention is shown in FIG. Figure 2 .

[0017] Among them, 1. workbench; 2. loading station; 3. inspection station; 4. unloading station for unqualified products; 5. unloading station for qualified products; 6. loading conveyor line; 7. conveyor line for unqualified products; 8. conveyor line for qualified products; 9. cam divider; 10. indexing plate; 11. positioning slot; 12. protective pad; 13. limit baffle; 14. limit seat; 15. limit guide shaft; 16. second spring; 17. control box; 18. first column; 19. detection lifting cylinder; 20. linear guide rail; 21. detection lifting plate; 22. Detection seat; 23. Detection rod; 24. Detection mounting plate; 25. Vent; 26. Air inlet joint; 27. Sealing head; 28. Through hole; 29. ​​Second column; 30. Moving cylinder; 31. Moving guide rail; 32. Grasping and lifting cylinder; 33. Clamp bracket; 34. Grasping cylinder; 35. Clamp seat; 36. Pull rod; 37. Clamping claw; 38. Connecting plate; 39. Articulated seat; 40. Connecting rod; 41. Clamping block; 42. Lifting cylinder; 43. Lifting seat; 44. First spring; 45. Moving seat. DETAILED DESCRIPTION

[0018] In order to make the technical means, technical features, invention objectives and technical effects achieved by the present invention easy to understand, the present invention is further explained below with reference to specific illustrations.

[0019] like Figure 1As shown, a glass bottle air tightness detection device comprises a workbench 1, on which an intermittent turntable is installed, and the workbench is divided into a loading station 2, a detection station 3, a defective product unloading station 4 and a qualified product unloading station 5 in sequence around the periphery of the intermittent turntable, and a loading conveyor line 6 corresponding to the loading station 2, a defective product conveyor line 7 corresponding to the defective product unloading station 4 and a qualified product conveyor line 8 corresponding to the qualified product unloading station 5 are arranged on the outer periphery of the workbench 1, the glass bottle is conveyed to the loading station 2 through the loading conveyor line 6, and the glass bottle is transferred to the intermittent turntable at the loading station 2, and the glass bottle is driven by the intermittent turntable to flow to the detection station 3, and a detection mechanism is installed at the detection station 3 for performing air tightness detection on the glass bottle and transmitting the detection result The result is uploaded, a non-conforming product grabbing mechanism is installed at the non-conforming product unloading station 4, and the non-conforming product grabbing mechanism is used to grab and transfer the glass bottles that have failed the inspection from the intermittent turntable to the non-conforming product conveying line 7, and the non-conforming product conveying line 7 is conveyed to the designated position, and a qualified product grabbing mechanism is installed at the qualified product unloading station 5, and the qualified product grabbing mechanism is used to grab and transfer the glass bottles that have passed the inspection from the intermittent turntable to the qualified product conveying line 8, and the qualified product conveying line 8 is conveyed to the designated position, and a control box 17 is installed on the workbench 1, and the intermittent turntable, the detection mechanism, the non-conforming product grabbing mechanism, the qualified product grabbing mechanism, the lifting mechanism, the feeding conveying line 6, the non-conforming product conveying line 7 and the qualified product conveying line 8 are all electrically connected to the control box 17 to realize the automatic control of the operation process; The unqualified product grabbing mechanism and the qualified product grabbing mechanism adopt the same structure, and the feeding conveying line 6, the unqualified product conveying line 7 and the qualified product conveying line 8 adopt the same structure, which simplifies the design and processing procedures and saves costs; The feeding conveyor line 6, the unqualified product conveyor line 7 and the qualified product conveyor line 8 all adopt the power conveyor line mode, which is the application of the existing technology, and its specific structure is not repeated here.

[0020] like Figure 1 and Figure 2 As shown, the intermittent turntable includes a cam divider 9 and a dividing plate 10. The cam divider 9 is installed on the workbench 1, and the dividing plate 10 is installed at the output end of the cam divider 9. The dividing plate 10 is driven by the cam divider 9 to intermittently rotate. A plurality of positioning slots 11 are processed in a circular array on the circumference of the dividing plate 10 for positioning the glass bottles. A protective pad 12 is pasted on the inner surface of the positioning slot 11. The protective pad 12 is made of soft material to protect the surface of the glass bottle. The number of the positioning slots 11 is the same as the number of workstations or is an integer multiple of the number of workstations.

[0021] like Figure 3As shown, the detection mechanism includes a first column 18, a detection lifting cylinder 19, a linear guide 20, a detection lifting plate 21, a detection seat 22 and a detection rod 23. The first column 18 is installed on the workbench 1, and a detection mounting plate 24 is integrally welded to the upper end of the first column 18. The detection lifting cylinder 19 is installed above the detection mounting plate 24. There are two linear guides 20, and the two linear guides 20 are symmetrically installed on the detection mounting plate 24. The detection lifting plate 21 is connected to the two linear guides 20. The detection lifting plate 21 is connected to the protruding end of the detection lifting cylinder 19. The detection lifting plate 21 is driven by the detection lifting cylinder 19 to move relative to the detection mounting plate 24 along the linear guide 20. The detection seat 22 is installed on the detection lifting plate 21. The detection rod 23 is inserted and connected to the detection seat 22. The detection rod 23 can float up and down relative to the detection seat 22. A first spring 44 is sleeved on the circumference of the detection rod 23 below the detection seat 22. One end of the first spring 44 is fixedly connected to the detection rod 23, and the other end of the first spring 44 is fixedly connected to the detection rod 23. One end is in contact with the lower end surface of the detection seat 22. A vent hole 25 is machined inside the detection rod 23. The vent hole 25 axially penetrates the detection rod 23. An air inlet joint 26 is connected to the top of the detection rod 23. A sealing head 27 is connected to the bottom of the detection rod 23. The sealing head 27 is made of soft material. A through hole 28 is machined on the sealing head 27. The through hole 28 is coaxial with the vent hole 25. During detection, the detection lifting cylinder 19 drives the detection seat 22 and the detection rod 23 to descend, so that the sealing head 27 is pressed tightly against the glass bottle. At the open end, the force between the sealing head 27 and the glass bottle pushes the detection rod 23 to compress the first spring 44, causing an upward floating movement to avoid damage to the glass bottle caused by excessive pressure. Since the sealing head 27 is made of soft material, the sealing head 27 is deformed when pressed, which can seal the glass bottle. The external compressed gas is connected through the air inlet connector 26, and the compressed gas is injected into the glass bottle through the vent hole 25 and the through hole 28. The pressure change is monitored to see if it meets the requirements, and the test results are uploaded to the control box 17.

[0022] like Figure 4 and Figure 5As shown, the grabbing mechanism includes a second column 29, a moving cylinder 30, a moving guide rail 31, a moving seat 45, a grabbing lifting cylinder 32 and a grabbing fixture. The second column 29 is connected to the workbench 1, and the moving cylinder 30 and the moving guide rail 31 are both installed on the second column 29. Specifically, the fixed end of the moving cylinder 30 is connected to the second column 29, the slider of the moving guide rail 31 is connected to the second column 29, the moving seat 45 is connected to the guide rail body of the moving guide rail 31, and the moving seat 45 is connected to the moving guide rail body. The extending end of the cylinder 30 is connected, and the moving seat 45 is driven by the moving cylinder 30 to move along the moving guide rail 31 relative to the second column 29. The grabbing lifting cylinder 32 is installed on the moving seat 45. The grabbing fixture is connected to the extending end of the grabbing lifting cylinder 32 to realize the grabbing of the glass bottle. The grabbing fixture includes a fixture bracket 33, a grabbing cylinder 34, a fixture seat 35, a pull rod 36 and a clamping claw 37. The fixture bracket 33 is connected to the grabbing lifting cylinder 32, and the grabbing cylinder 34 is installed on the top of the fixture bracket 33. The extended end of the cylinder 34 is connected to a connecting plate 38, and the clamp seat 35 is connected to the bottom of the clamp bracket 33. The surface of the clamp seat 35 facing away from the clamp bracket 33 is processed with a plurality of hinge seats 39, and the plurality of hinge seats 39 are arranged in a circumferential array. The number of hinge seats 39 is at least two. In this embodiment, the number of hinge seats 39 is three as an example for explanation. The number of pull rods 36 and clamping claws 37 corresponds to the number of hinge seats 39, and the clamping claws 37 are connected to the hinge seats 39 one by one. Specifically, the clamping The middle part of the claw 37 is hinged to the hinge seat 39, the upper end of the pull rod 36 passes upward through the clamp seat 35 and is connected to the connecting plate 38, the lower end of the pull rod 36 is hinged to the upper end of the clamp 37 through the connecting rod 40, and the lower end of the clamp 37 is installed with a clamping block 41, which is made of flexible material. When clamping the glass bottle, the clamping block 41 contacts the glass bottle and deforms, which increases the friction with the glass bottle, improves the stability of clamping, and prevents damage to the glass bottle caused by excessive pressure.

[0023] like Figure 1 and Figure 2 As shown, a limiting mechanism is connected on the workbench 1 and located on the outer side of the intermittent turntable, the limiting mechanism includes a limiting baffle 13 and a plurality of limiting seats 14, the plurality of limiting seats 14 are installed on the workbench 1 at intervals, the limiting baffle 13 is installed on the outer side of the dividing plate 10 in a semi-enclosed structure, that is, the limiting baffle 13 extends from the loading station 2 to the qualified product unloading station 5, surrounding the dividing plate 10 over 3 / 4 of the range, the limiting baffle 13 is connected to the limiting seat 14 through a limiting guide shaft 15, and a second spring 16 is mounted on the limiting guide shaft 15, one end of the second spring 16 abuts against the limiting seat 14, and the other end of the second spring 16 abuts against the limiting baffle 13, and the limiting baffle 13 is compressed toward the dividing plate 10 under the action of the second spring 16, so as to limit the glass bottle in the positioning slot 11 to prevent the position of the glass bottle from changing during rotation.

[0024] like Figure 1 and Figure 2 As shown, a lifting mechanism is installed at the unqualified product unloading station 4 and the qualified product unloading station 5 on the workbench 1 for lifting the glass bottles to facilitate the grabbing of the glass bottles. The lifting mechanism includes a lifting cylinder 42 and a lifting seat 43. The fixed end of the lifting cylinder 42 is connected to the workbench 1, and the lifting seat 43 is connected to the protruding end of the lifting cylinder 42. An avoidance hole is processed through the workbench 1 to facilitate the lifting and lowering of the lifting seat 43. When the lifting cylinder 42 is retracted, the upper surface of the lifting seat 43 is flush with the upper surface of the workbench 1. When the glass bottle needs to be grabbed, the lifting cylinder 42 extends to drive the lifting seat 43 to lift the glass bottle above the workbench 1 to avoid interference between the clamping claw 37 and the dividing plate 10 and / or the limit baffle 13 during grabbing.

[0025] The working principle of the present invention is: When in use, the control box 17 controls the feeding conveyor line 6 to convey the glass bottles in sequence, and controls the cam divider 9 to rotate intermittently, and the glass bottles are conveyed to the positioning slots 11 on the indexing plate 10. The cam divider 9 drives the glass bottles to rotate and convey from the feeding station 2 to the inspection station 3 through the indexing plate 10. When rotating, the glass bottles are pressed and limited by the limit baffle 13, and the glass bottles are restricted in the positioning slots 11 to ensure the accuracy of the position; The glass bottle rotates to the detection station 3, the detection lifting cylinder 19 drives the detection seat 22 and the detection rod 23 to approach the glass bottle, and the sealing head 27 presses the mouth of the glass bottle. When pressing, the sealing head 27 deforms and seals, and the compression of the first spring 44 realizes the floating of the detection rod 23 relative to the glass bottle to avoid damage to the glass bottle caused by excessive pressure. The air inlet connector 26 is connected to an external compressed air source, and compressed gas is introduced into the glass bottle through the air inlet connector 26, the vent 25 and the through hole 28. The control box 17 detects the change of pressure in the glass bottle and uploads the detection result to the control box 17; When the test is qualified, when the intermittent turntable rotates the glass bottle to the unqualified product unloading station 4, the control box 17 controls the unqualified product grabbing mechanism not to move, and when the glass bottle rotates to the qualified product unloading station 5, the control box 17 controls the lifting cylinder 42 to extend, and the lifting cylinder 42 drives the lifting seat 43 to lift the glass bottle up and off the surface of the workbench 1, and the moving cylinder 30 extends to drive the grabbing fixture to move above the glass bottle, and the grabbing lifting cylinder 32 extends, and the grabbing fixture surrounds the periphery of the glass bottle, and the grabbing cylinder 34 retracts, and drives the three clamping claws 37 to close through the connecting plate 38, the pull rod 36 and the connecting rod 40 to achieve the clamping and grabbing of the glass bottle, and the grabbing lifting cylinder 32 retracts to take the glass bottle out of the positioning card slot 11, and the moving cylinder 30 retracts to drive the glass bottle to move above the qualified product conveying line 8, and the grabbing lifting cylinder 32 extends, and the grabbing cylinder 34 extends to place the glass bottle on the qualified product conveying line 8, and the qualified product conveying line 8 conveys the glass bottle that has passed the test; When the inspection fails, the intermittent turntable rotates the glass bottle to the unqualified product unloading station 4, and the control box 17 controls the unqualified product grabbing mechanism to perform the same actions as the above-mentioned qualified product grabbing process. The unqualified product grabbing mechanism grabs the unqualified glass bottle and places it on the unqualified product conveying line 7, which then conveys and recycles it. This process is repeated over and over to realize the automation and continuity of the air tightness testing of glass bottles.

[0026] The above description is only a preferred embodiment of the present invention and is not intended to limit the scope of implementation of the present invention. That is, all equivalent changes and modifications made according to the content of the patent application scope of the present invention should belong to the technical scope of the present invention.

Claims

1. A glass bottle air tightness detection device, characterized in that: The invention comprises a workbench (1), wherein an intermittent turntable is arranged on the workbench (1), and a loading station (2), a testing station (3), a non-conforming product unloading station (4) and a qualified product unloading station (5) are arranged in sequence around the outer circumference of the intermittent turntable. The loading station (2) is used to realize the transfer of glass bottles to the intermittent turntable. The testing station (3) is provided with a testing mechanism, which is used to perform airtightness testing on the glass bottles and upload the testing results. The non-conforming product unloading station (4) is provided with a non-conforming product grabbing mechanism, which is used to realize the grabbing and transferring of non-conforming glass bottles from the intermittent turntable. The qualified product unloading station (5) is provided with a qualified product grabbing mechanism, which is used to realize the grabbing and transferring of qualified glass bottles from the intermittent turntable. The non-conforming product grabbing mechanism and the qualified product grabbing mechanism have the same structure.

2. The glass bottle air tightness detection device according to claim 1, characterized in that: The detection mechanism comprises a first column (18), a detection lifting cylinder (19), a linear guide rail (20), a detection lifting plate (21), a detection seat (22) and a detection rod (23); a detection mounting plate (24) is arranged at the upper end of the first column (18); the detection lifting cylinder (19) is arranged above the detection mounting plate (24); two linear guide rails (20) are symmetrically arranged on the detection mounting plate (24); the detection lifting plate (21) is arranged on the two linear guide rails (20) and connected to the protruding end of the detection lifting cylinder (19); the detection seat (22) is arranged on the detection lifting plate (21); the detection rod (23) is inserted and slidably arranged on the detection seat (22); an axially through-going vent hole (25) is arranged inside the detection rod (23); an air inlet joint (26) is arranged at the top of the detection rod (23); a sealing head (27) is arranged at the bottom of the detection rod (23); and a first spring (44) is sleeved on the detection rod (23).

3. The glass bottle air tightness detection device according to claim 2, characterized in that: The sealing head (27) is made of a soft material, and a through hole (28) connected to the vent hole (25) is provided on the sealing head (27).

4. The glass bottle air tightness detection device according to claim 1, characterized in that: The grabbing mechanism comprises a second column (29), a movable cylinder (30), a movable guide rail (31), a movable seat (45), a grabbing lifting cylinder (32) and a grabbing fixture. The movable cylinder (30) and the movable guide rail (31) are both arranged on the second column (29), the movable seat (45) is connected to the movable cylinder (30) and the movable guide rail (31), the grabbing lifting cylinder (32) is arranged on the movable seat (45), and the grabbing fixture is arranged at the protruding end of the grabbing lifting cylinder (32).

5. The glass bottle air tightness detection device according to claim 4, characterized in that: The grabbing fixture comprises a fixture bracket (33), a grabbing cylinder (34), a fixture seat (35), a pull rod (36) and a plurality of clamping claws (37). The fixture bracket (33) is arranged on the grabbing lifting cylinder (32), the grabbing cylinder (34) is arranged on the top of the fixture bracket (33), a connecting plate (38) is connected to the grabbing cylinder (34), the fixture seat (35) is arranged at the bottom of the fixture bracket (33), a plurality of hinge seats (39) are arranged in a circular array on the surface of the fixture seat (35) facing away from the fixture bracket (33), and a plurality of the clamping claws (37) are hinged to the hinge seats (39) one by one. The upper end of the pull rod (36) passes through the fixture seat (35) upward and is connected to the connecting plate (38), the lower end of the pull rod (36) is hinged to the upper end of the clamping claw (37) through a connecting rod (40), and a clamping block (41) is arranged at the lower end of the clamping claw (37).

6. The glass bottle air tightness detection device according to claim 1, characterized in that: The intermittent turntable comprises a cam divider (9) and a dividing plate (10); the cam divider (9) is arranged on the workbench (1); the dividing plate (10) is arranged on the cam divider (9); a plurality of positioning slots (11) are evenly distributed on the circumference of the dividing plate (10); and the inner surfaces of the positioning slots (11) are provided with protective pads (12).

7. The glass bottle air tightness detection device according to claim 6, characterized in that: A limit mechanism is arranged on the workbench (1), the limit mechanism comprising a limit baffle (13) and a plurality of limit seats (14), the plurality of limit seats (14) being arranged at intervals on the workbench (1), the limit baffle (13) being arranged to semi-enclose the outer side of the indexing plate (10), the limit baffle (13) being connected to the limit seat (14) via a limit guide shaft (15), and a second spring (16) being sleeved on the limit guide shaft (15).

8. The glass bottle air tightness detection device according to claim 1, characterized in that: The unqualified product unloading station (4) and the qualified product unloading station (5) are both provided with a lifting mechanism, the lifting mechanism comprising a lifting cylinder (42) and a lifting seat (43), the fixed end of the lifting cylinder (42) is provided on the workbench (1), and the lifting seat (43) is connected to the protruding end of the lifting cylinder (42).

9. The glass bottle air tightness detection device according to claim 1, characterized in that: The outside of the workbench (1) is respectively provided with a loading conveyor line (6) corresponding to the loading station (2), a defective product conveyor line (7) corresponding to the defective product unloading station (4), and a qualified product conveyor line (8) corresponding to the qualified product unloading station (5); the loading conveyor line (6), the defective product conveyor line (7) and the qualified product conveyor line (8) have the same structure.

10. The glass bottle air tightness detection device according to claim 9, characterized in that: A control box (17) is provided on the workbench (1); the intermittent turntable, the detection mechanism, the unqualified product grabbing mechanism, the qualified product grabbing mechanism, the lifting mechanism, the feeding conveyor line (6), the unqualified product conveyor line (7) and the qualified product conveyor line (8) are all electrically connected to the control box (17).

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