A tab defect detection apparatus

Abstract

The application relates to the technical field of product detection, in particular to a pop ring defect detection equipment for a pop can, which comprises a mounting base, the upper end of the mounting base is fixedly connected with a mounting plate, an opening is arranged in the bottom of the mounting plate, a fixing mechanism is fixedly arranged at the upper end of the mounting plate, a pop can is arranged above the opening, the fixing mechanism can fix and limit the pop can to prevent the pop can from shaking, the pop can is further fixed and limited through the fixing mechanism, a connecting barrel is arranged above the mounting plate, the fixing mechanism can drive the connecting barrel to move up and down, a tension mechanism for testing the tension of the pop ring of the pop can is fixedly arranged in the connecting barrel, the tension of the pop ring of the pop can is detected, a limiting mechanism is further fixedly arranged in the connecting barrel, when the tension is too high, the pop ring can be released in time, the pop ring is effectively prevented from being damaged due to the too large tension, the integrity of the pop ring in the detection process is ensured, the accuracy and reliability of the quality detection of the pop ring are improved, the rate of defective products is reduced, and unnecessary resource waste is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of product detection, in particular to a pull-tab defect detection equipment for easy-open cans. BACKGROUND

[0002] In the production and use of easy-open cans, the quality of the pull-tab is crucial. A suitable pull-tab force can ensure that consumers can easily open the easy-open can, and can prevent the pull-tab from breaking too early due to too small a pull force, or causing difficulty in opening due to too large a pull force.

[0003] Traditional pull-tab detection mainly relies on manual sampling inspection, and whether the pull force of the pull-tab is suitable is judged by subjective feeling. This method is inefficient, cannot cover all products in large-scale production, is greatly affected by human factors, and detection standards are difficult to unify. At the same time, manual detection cannot accurately quantify the pull force value of the pull-tab, and cannot meet the high-precision requirements of modern production for quality control.

[0004] With the development of automatic production technology, the production speed of easy-open cans is continuously improving, and the automation and precision of the pull-tab defect detection equipment are also increasingly required. There is an urgent need for an equipment that can automatically and accurately detect the pull force of the pull-tab and determine whether it meets the human opening comfort interval, in order to improve product quality, reduce the rate of defective products, and improve production efficiency.

[0005] After a large amount of retrieval, it was found that the prior art with publication number CN116879317B discloses an easy-open can online defect detection equipment, which comprises an upper suspension beam, an upper computer, an industrial manipulator, an empty bottom cylinder, an outer circular detection assembly, and a bottom contrast detection assembly. The upper computer is located below the upper suspension beam, the industrial manipulator is fixed below the upper suspension beam, the empty bottom cylinder is fixed below the upper suspension beam, the outer circular detection assembly is arranged in the empty bottom cylinder, and the bottom contrast detection assembly is arranged below the upper suspension beam. The outer circular detection assembly comprises a surrounding driving unit, a proportional concave-convex detection unit, and a bulging re-detection unit. The surrounding driving unit, the proportional concave-convex detection unit, and the bulging re-detection unit are all arranged in the empty bottom cylinder. The present application relates to the technical field of industrial product detection, and specifically provides an easy-open can online defect detection equipment that can simultaneously detect the top appearance style, the outer circular surface integrity, and the bottom deformation degree of the easy-open can.

[0006] Therefore, based on the above retrieval and in combination with the existing, the above-mentioned scheme can only detect the appearance of the easy-open can, but cannot detect the pull force of the pull-tab, which means that it is difficult to determine whether the pull-tab meets the human force habit in actual opening, which may cause difficulty in opening for consumers or easy breakage of the pull-tab, greatly limiting the comprehensiveness and practicality of detection. Therefore, we propose a pull-tab defect detection equipment for easy-open cans. SUMMARY

[0007] The present application aims to provide a pull ring defect detection device for easy-open cans to solve the problems in the background art.

[0008] To achieve the above object, the present application provides the following technical solutions.

[0009] A pull ring defect detection device for easy-open cans comprises a mounting base, characterized in that the upper end of the mounting base is fixedly connected with a mounting plate, the bottom of the mounting plate is provided with an opening, the upper end of the mounting plate is fixedly installed with a fixing mechanism, the upper side of the opening is provided with an easy-open can, and the fixing mechanism can fix and limit the easy-open can to prevent the easy-open can from shaking.

[0010] The fixing mechanism is used for fixing and limiting, a connecting barrel is arranged above the mounting plate, the fixing mechanism can drive the connecting barrel to move up and down, a tension mechanism for testing the tension of the pull ring of the easy-open can is fixedly installed in the connecting barrel, the pressure of the pull ring of the easy-open can being pulled is detected, and a limiting mechanism is also fixedly installed in the connecting barrel.

[0011] Further to the present application, the fixing mechanism comprises a matching frame, a rotating arm is rotatably connected in the matching frame, the left end of the rotating arm is fixedly connected with the connecting barrel, the bottom of the rotating arm is fixedly connected with a contraction abutting arm, and the bottom of the contraction abutting arm is also rotatably connected with a rotating wheel.

[0012] Further to the present application, the upper end of the mounting plate is fixedly connected with a second fixing block, a first fixing block is slidably connected between the matching frame and the second fixing block, the outer wall of the rotating wheel and the first fixing block abut each other, and a plurality of first springs are fixedly connected between the first fixing block and the second fixing block.

[0013] Further to the present application, the tension mechanism comprises a sliding circular plate, the sliding circular plate is slidably connected in the connecting barrel, the sliding circular plate and the inner wall bottom end of the connecting barrel are fixedly connected through a second spring, the bottom of the sliding circular plate is fixedly connected with a connecting pipe, the outer wall of the connecting pipe is slidably arranged in the connecting barrel, and the bottom of the connecting pipe is rotatably connected with two curved clamping arms with a reset function.

[0014] Further to the present application, a second clamping arm and a first clamping arm are arranged below the connecting barrel, the second clamping arm and the first clamping arm are rotatably connected with the bottom of the adjacent curved clamping arm, a second reset torsional spring is clamped between the second clamping arm and the first clamping arm and the adjacent curved clamping arm, the inner wall of the second clamping arm and the outer wall of the first clamping arm abut each other, and a limiting gear is fixedly connected with the front end of the second clamping arm and the first clamping arm.

[0015] As a further scheme, the bottom of the curved clamping arm is fixedly connected with a first telescopic air pipe, and the bottom of the first telescopic air pipe is fixedly connected with a first clamping tooth, the outer wall of the first clamping tooth is clamped with a limiting gear, the upper end of the sliding circular plate is fixedly connected with a second telescopic air pipe, the second telescopic air pipe is fixedly communicated with the first telescopic air pipe through a matching pipe, the outer wall of the matching pipe is fixedly arranged in the connecting pipe and the curved clamping arm, the upper end of the second telescopic air pipe is fixedly connected with a matching arm, and a sliding opening is arranged on the sliding circular plate.

[0016] As a further scheme, the inner wall of the connecting barrel is fixedly connected with a connecting block, the inner wall of the connecting barrel is fixedly connected with a tension table, the upper end of the connecting barrel is fixedly connected with a tension table, and the left end of the tension table is rotatably connected with a pointer.

[0017] As a further scheme, the right end of the tension table is rotatably connected with a recovery wheel, the recovery wheel is fixedly connected with the pointer, the recovery wheel and the tension table are clamped through a third torsional spring, the outer wall of the recovery wheel is wound with a second pulling rope, the free end of the second pulling rope is fixedly connected with the upper end of the sliding circular plate, and the outer wall of the second pulling rope is slidably arranged in the connecting barrel.

[0018] As a further scheme, the limiting mechanism comprises a pulling block, the left side of the pulling block is provided with a second clamping tooth, the second clamping tooth and the pulling block are fixedly connected through two sliding columns, the outer wall of the sliding column is slidably connected to the upper end of the connecting barrel, and the pulling block and the connecting barrel are fixedly connected with two fourth springs.

[0019] As a further scheme, the upper end of the sliding circular plate is fixedly connected with two racks, the outer wall of the two racks is arranged in the connecting barrel, and the right end of the rack is abutted with the outer wall of the second clamping tooth.

[0020] Advantages

[0021] Compared with the prior art, the present application has the following advantages:

[0022] 1. When the sliding circular plate is pulled by the tension ring, it slowly approaches the bottom end of the inner wall of the connecting barrel, which will pull the second pulling rope, and the second pulling rope will drive the recovery wheel to rotate continuously, and the pointer will rotate synchronously when the recovery wheel rotates, and when the sliding circular plate stops moving due to the change of the tension ring, the pointer will also stop rotating stably, at this time, the operator only needs to observe the position of the pointer, and can directly read the maximum tension value of the tension ring when it is separated from the pop can, so as to accurately and efficiently detect the tension of the pop can, and provide a key basis for pop can production quality control.

[0023] 2. When the pull ring tension exceeds the predetermined value, the sliding round plate approaches the connecting barrel bottom, driving a series of actions, the tension gauge triggers the matching arm, the second telescopic air pipe is extended, the first telescopic air pipe is sucked, the first pawl is separated from the limiting gear, the second and first clamping arms lose the limit and rotate, the pull ring is separated from the clamping arm, the device can automatically sense the abnormal tension of the pull ring, timely release the pull ring when the tension is too high, effectively avoid the pull ring damage caused by excessive tension, ensure the integrity of the pull ring in the detection process, improve the accuracy and reliability of the pull ring quality detection, reduce the defective rate, and reduce unnecessary resource waste. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is a front view of a pull ring defect detection equipment for a pop can;

[0025] Figure 2 It is a perspective view of a pull ring defect detection equipment for a pop can;

[0026] Figure 3 It is a schematic view of the position structure of the second fixed block of a pull ring defect detection equipment for a pop can;

[0027] Figure 4 It is a schematic view of the internal structure of the connecting barrel of a pull ring defect detection equipment for a pop can;

[0028] Figure 5 It is a schematic view of the position structure of the connecting block of a pull ring defect detection equipment for a pop can;

[0029] Figure 6 It is a schematic view of the position structure of the second clamping arm of a pull ring defect detection equipment for a pop can;

[0030] Figure 7 It is a top view of the connecting barrel of a pull ring defect detection equipment for a pop can;

[0031] Figure 8 It is a schematic view of the limiting mechanism structure of a pull ring defect detection equipment for a pop can.

[0032] In the figure: 1, mounting base; 2, mounting plate; 3, suction cup; 4, matching frame; 5, pop can; 6, contraction abutting arm; 7, rotating wheel; 8, opening; 9, first fixed block; 10, sliding rod; 11, rotating arm; 12, connecting barrel; 13, first spring; 14, second fixed block; 16, curved clamping arm; 17, matching pipe;

[0033] 18, limiting gear; 19, first clamping arm; 20, second clamping arm; 21, first telescopic air pipe; 22, second spring; 23, sliding round plate; 24, pointer; 25, tension gauge; 26, sliding port; 27, matching arm; 28, second telescopic air pipe; 29, connecting pipe; 30, rack;

[0034] 31, pull block; 32, sliding column; 33, third torsional spring; 34, recycling wheel; 35, second pull rope; 36, fourth spring; 37, second pawl; 38, first pawl; 39, connecting block; 101, fixing mechanism; 201, tension mechanism; 301, limiting mechanism. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0036] Embodiment one: please refer to Figure 1 , Figure 3 As shown in the drawing, a ring-pull can ring defect detection device, comprising a mounting base 1, the upper end of the mounting base 1 is fixedly connected with a mounting plate 2, the bottom of the mounting plate 2 is provided with an opening 8, the upper end of the mounting plate 2 is fixedly installed with a fixing mechanism 101, the upper side of the opening 8 is provided with a ring-pull can 5, the fixing mechanism 101 can fix and limit the ring-pull can 5, preventing the ring-pull can 5 from shaking, when it is necessary to replace the ring-pull can 5, only need to take out the ring-pull can 5 from the opening 8, then put the new ring-pull can 5 through the opening 8 and place it in the predetermined position, and then fix and limit it through the fixing mechanism 101, the upper side of the mounting plate 2 is provided with a connecting barrel 12, the fixing mechanism 101 can drive the connecting barrel 12 to move up and down, the inside of the connecting barrel 12 is fixedly installed with a tension mechanism 201 which can test the tension of the ring-pull can 5 ring, the inside of the connecting barrel 12 is also fixedly installed with a limiting mechanism 301, the bottom of the mounting base 1 is fixedly connected with a suction cup 3, and the suction cup 3 is made of rubber material, the rubber material has good elasticity, and also has good corrosion resistance and high temperature resistance, the suction cup 3 can enhance the friction between the mounting base 1 and the outer wall of the object.

[0037] Embodiment two: please refer to Figure 2 , Figure 3As shown, the fixing mechanism 101 comprises a matching frame 4, the inside of the matching frame 4 is rotationally connected with a rotating arm 11 through a rotating shaft, the left end of the rotating arm 11 is fixedly connected with a connecting barrel 12 through a bolt, the bottom of the rotating arm 11 is fixedly connected with a contraction abutting arm 6, the bottom of the contraction abutting arm 6 is further rotationally connected with a rotating wheel 7 through a rotating shaft, the outer wall of the rotating wheel 7 is fixedly connected with a rubber sleeve, the upper end of the mounting plate 2 is fixedly connected with a second fixing block 14, the first fixing block 9 is slidably connected between the matching frame 4 and the second fixing block 14, and the second fixing block 14 and the first fixing block 9 are symmetrically distributed above the mounting plate 2, the second fixing block 14 and the first fixing block 9 are both arc-shaped, and the arc-shaped inner wall can better adhere to the outer wall of the zip-top can 5;

[0038] Specifically, the second fixing block 14 and the matching frame 4 are fixedly connected with a plurality of slide rods 10, the inside of the first fixing block 9 is provided with a plurality of sliding openings, the inner wall of each sliding opening is slidably connected with the outer wall of the corresponding slide rod 10, when the first fixing block 9 slides between the second fixing block 14 and the matching frame 4, the slide rod 10 can limit the first fixing block 9 through the sliding opening, and also has a guiding effect, thereby improving the stability of the first fixing block 9 during movement, the outer wall of the sliding opening and the outer wall of the slide rod 10 are both coated with lubricating oil, the lubricating oil can reduce the friction between the slide rod 10 and the sliding opening, thereby greatly prolonging the service life of the sliding opening and the slide rod 10, the outer wall of the rotating wheel 7 and the first fixing block 9 abut each other, and the rubber sleeve can further enhance the friction between the rotating wheel 7 and the first fixing block 9, a plurality of first springs 13 are fixedly connected between the first fixing block 9 and the second fixing block 14, each first spring 13 is sleeved on the outer wall of the corresponding slide rod 10, and the first spring 13 can drive the first fixing block 9 to quickly reset;

[0039] Please refer to Figures 3-7As shown, the tension mechanism 201 comprises a sliding round plate 23 which is slidingly connected in the interior of the connecting barrel 12, and is fixedly connected between the inner wall bottom end of the connecting barrel 12 and a second spring 22, the second spring 22 can drive the sliding round plate 23 to quickly reset, the bottom of the sliding round plate 23 is fixedly connected with a connecting pipe 29, the outer wall of the connecting pipe 29 is slidingly arranged in the interior of the connecting barrel 12, the bottom of the connecting pipe 29 is rotatably connected with two arc-shaped clamping arms 16 with reset function through a rotating shaft, and the arc-shaped clamping arms 16 are also arc-shaped, each arc-shaped clamping arm 16 is clamped with a first reset torsion spring between the connecting pipe 29, the two arc-shaped clamping arms 16 are symmetrically distributed at the bottom of the connecting pipe 29, a second clamping arm 20 and a first clamping arm 19 are arranged below the connecting barrel 12, the second clamping arm 20 and the first clamping arm 19 are rotatably connected with the bottom of the adjacent arc-shaped clamping arm 16, the second clamping arm 20 and the first clamping arm 19 are clamped with a second reset torsion spring between the adjacent arc-shaped clamping arm 16, the inner wall of the second clamping arm 20 and the outer wall of the first clamping arm 19 abut each other, the front end of the second clamping arm 20 and the first clamping arm 19 is fixedly connected with a limiting gear 18, the bottom of the arc-shaped clamping arm 16 is further fixedly connected with a first telescopic air pipe 21, the first telescopic air pipe 21 is located above the limiting gear 18, and the bottom of the first telescopic air pipe 21 is fixedly connected with a first clamping tooth 38, the outer wall of the first clamping tooth 38 and the limiting gear 18 are clamped with each other;

[0040] The upper end of the sliding circular plate 23 is fixedly connected with a second telescopic air pipe 28. The second telescopic air pipe 28 is fixedly communicated with the first telescopic air pipe 21 through the matching pipe 17. The matching pipe 17 is fixedly arranged in the inside of the connecting pipe 29 and the arc bending clamping arm 16. The upper end of the second telescopic air pipe 28 is fixedly connected with a matching arm 27. The sliding circular plate 23 is provided with a sliding opening 26. The inner wall of the connecting barrel 12 is fixedly connected with a connecting block 39. The connecting block 39 is located directly below the sliding opening 26. The inner wall of the connecting barrel 12 is fixedly connected with a tension meter 25. The left end of the tension meter 25 is provided with a plurality of scale lines. The scale lines are circumferentially distributed at the left end of the tension meter 25. The scale lines facilitate observation of the staff. The left end of the tension meter 25 is rotatably connected with a pointer 24 through a rotating shaft. The right end of the tension meter 25 is rotatably connected with a recovery wheel 34. When the sliding opening 26 moves downward, the connecting block 39 will pass through the inside of the sliding opening 26. The upper end of the connecting block 39 will abut against the bottom of the matching arm 27. At this time, the second telescopic air pipe 28 will be extended under the driving of the matching arm 27. At this time, the second telescopic air pipe 28 will suck the first telescopic air pipe 21. At this time, the first telescopic air pipe 21 will be retracted to drive the first clamping tooth 38 to disengage from the outer wall of the limiting gear 18. The recovery wheel 34 is fixedly connected with the pointer 24. The recovery wheel 34 and the tension meter 25 are clamped through a third torsional spring 33. The outer wall of the recovery wheel 34 is wound with a second pull rope 35. The free end of the second pull rope 35 is fixedly connected with the upper end of the sliding circular plate 23. The outer wall of the second pull rope 35 is slidably arranged in the inside of the connecting barrel 12.

[0041] Please refer to Figures 7-8 As shown in the figure, the limiting mechanism 301 comprises a pulling block 31. The pulling block 31 is located above the connecting barrel 12. The left side of the pulling block 31 is provided with a second clamping tooth 37. The inclined surface of the second clamping tooth 37 faces upward. The second clamping tooth 37 and the pulling block 31 are fixedly connected through two sliding columns 32. The two sliding columns 32 are symmetrically distributed in front of and behind the second clamping tooth 37 and the pulling block 31. The outer wall of the sliding column 32 is slidably connected to the upper end of the connecting barrel 12. The pulling block 31 and the connecting barrel 12 are fixedly connected with two fourth springs 36. Each fourth spring 36 is sleeved on the outer wall of the sliding column 32. The upper end of the sliding circular plate 23 is fixedly connected with two racks 30. The outer wall of the two racks 30 is arranged in the inside of the connecting barrel 12. The right end of the rack 30 abuts against the outer wall of the second clamping tooth 37.

[0042] Specifically, when the sliding circular plate 23 moves downward, the second clamping tooth 37 is inclined upward, and the sliding circular plate 23 is in abutment with the inclined surface of the second clamping tooth 37 when the sliding circular plate 23 moves downward, so that the second clamping tooth 37 moves toward the pulling block 31; when the sliding circular plate 23 stops moving, the connecting barrel 12 moves upward, the sliding circular plate 23 moves toward the inside of the connecting barrel 12 relative to the connecting barrel 12, and the sliding circular plate 23 drives the rack 30 to move toward the inside of the connecting barrel 12; at this time, the outer wall of the rack 30 is in abutment with the bottom of the second clamping tooth 37, the bottom of the second clamping tooth 37 is a flat surface, so that the outer wall of the rack 30 is clamped, and the rack 30 and the sliding circular plate 23 are limited; when the pulling block 31 is pulled, the pulling block 31 drives the second clamping tooth 37 to move through the sliding column 32, the second clamping tooth 37 is separated from the outer wall of the rack 30, and the second spring 22 resets the sliding circular plate 23 and the rack 30.

[0043] The working principle of the present application is as follows: in use, the two curved clamping arms 16 are clamped in the inside of the pull ring, and only the rotating arm 11 needs to be pulled downward, the rotating arm 11 rotates in the inside of the cooperating frame 4, the connecting barrel 12 is driven to move by the rotating arm 11, the connecting barrel 12 drives the two curved clamping arms 16 to move at this time, the two curved clamping arms 16 drive the second clamping arm 20 and the first clamping arm 19 to pull the outer wall of the pull ring, the sliding circular plate 23 is pressed relative to the connecting barrel 12 due to the pressure, the bottom of the connecting barrel 12 and the sliding circular plate 23 are close to each other, the second spring 22 is pressed, the connecting barrel 12 moves upward, the sliding circular plate 23 moves toward the inside of the connecting barrel 12 relative to the connecting barrel 12, the sliding circular plate 23 drives the rack 30 to move toward the inside of the connecting barrel 12, the outer wall of the rack 30 is in abutment with the bottom of the second clamping tooth 37 at this time, the bottom of the second clamping tooth 37 is a flat surface, so that the outer wall of the rack 30 is clamped, and the rack 30 and the sliding circular plate 23 are limited, when the pull ring is separated from the easy-open can 5, the second spring 22 drives the sliding circular plate 23 to reset on the inner wall of the connecting barrel 12 at this time, the sliding circular plate 23 cannot move because the rack 30 is limited by the second clamping tooth 37.

[0044] It is worth noting that when the sliding circular plate 23 and the inner wall of the connecting barrel 12 are close to each other in the opposite direction, the sliding circular plate 23 drives the second pulling rope 35 to pull, the second pulling rope 35 drives the recovery wheel 34 to rotate, the recovery wheel 34 drives the pointer 24 to rotate when rotating, the pointer 24 stops rotating when the sliding circular plate 23 stops, and the maximum force required when the pull ring is separated from the easy-open can 5 can be checked by the pointer 24.

[0045] When the pulling force of the pull ring is higher than the predetermined value, the sliding round plate 23 will be close to the inner wall bottom end of the connecting barrel 12, and when the connecting block 39 passes through the inside of the sliding port 26, the upper end of the connecting block 39 abuts against the bottom of the matching arm 27, at this time, the second telescopic air pipe 28 will be extended under the driving of the matching arm 27, and the second telescopic air pipe 28 will suck the first telescopic air pipe 21, at this time, the first telescopic air pipe 21 will be contracted to drive the first clamping tooth 38 to be separated from the outer wall of the limiting gear 18, at this time, due to the pulling force, the second clamping arm 20 and the first clamping arm 19 are out of limiting, the second clamping arm 20 and the first clamping arm 19 will rotate, the outer wall of the pull ring will be separated from the outer wall of the second clamping arm 20 and the first clamping arm 19, so as to avoid the damage of the pull ring, and the required pulling force of the pull ring can be directly obtained, which is higher than the predetermined value.

[0046] When the test is completed, the pull block 31 is pulled, the pull block 31 moves the second clamping tooth 37 through the sliding column 32, the second clamping tooth 37 is separated from the outer wall of the rack 30, the second spring 22 can reset the sliding round plate 23 and the rack 30, and the next test can be performed.

[0047] The above is only the preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A can pull ring defect detection device, comprising a mounting base, characterized in that: The upper end of the mounting base is fixedly connected to a mounting plate, the bottom of the mounting plate is provided with an opening, the upper end of the mounting plate is fixedly mounted with a fixing mechanism, a can is provided above the opening, and the fixing mechanism can fix and limit the can to prevent the can from shaking; A connecting barrel is provided above the mounting plate. The fixing mechanism can drive the connecting barrel to move up and down. A tension mechanism capable of testing the tension of the pull ring of the can is fixedly installed inside the connecting barrel to detect the pressure of the pull ring of the can. A limiting mechanism is also fixedly installed inside the connecting barrel. A tension gauge is fixedly connected to the upper end of the connecting barrel, and a pointer is rotatably connected to the left end of the tension gauge. The fixing mechanism includes a matching frame, the interior of the matching frame is rotatably connected to a rotating arm, the left end of the rotating arm is fixedly connected to the connecting barrel, the bottom of the rotating arm is fixedly connected to a shrinking abutting arm, and the bottom of the shrinking abutting arm is rotatably connected to a rotating wheel; The pulling mechanism includes a sliding circular plate, which is slidably connected to the interior of the connecting barrel. The sliding circular plate is fixedly connected to the bottom end of the inner wall of the connecting barrel via a second spring. A connecting tube is fixedly connected to the bottom of the sliding circular plate. The outer wall of the connecting tube slides through the interior of the connecting barrel. The bottom of the connecting tube is rotatably connected to two curved clamping arms with a reset function. When in use, the two curved clamping arms are clamped inside the pull ring. The right end of the tension gauge is rotatably connected to a recovery wheel, the recovery wheel is fixedly connected to the pointer, the recovery wheel and the tension gauge are clamped via a third torsion spring, a second pull rope is wound around the outer wall of the recovery wheel, the free end of the second pull rope is fixedly connected to the upper end of the sliding circular plate, and the outer wall of the second pull rope is slidably inserted into the interior of the connecting barrel; The limiting mechanism includes a pulling block, which is located above the connecting barrel. A second latch is provided on the left side of the pulling block, and the inclined surface of the second latch is facing upward. The second latch is fixedly connected to the pulling block by two sliding columns. The outer wall of the sliding column is slidably connected to the upper end of the connecting barrel. Two fourth springs are fixedly connected between the pulling block and the connecting barrel, and each of the fourth springs is sleeved on the outer wall of the sliding column. Two racks are fixedly connected to the upper end of the sliding circular plate, the outer walls of the two racks are passed through the interior of the connecting barrel, and the right ends of the racks abut against the outer wall of the second latching tooth; When the sliding circular plate moves toward the bottom end of the inner wall of the connecting barrel, the sliding circular plate pulls the second pull rope, and the second pull rope drives the recovery wheel to rotate, and when the recovery wheel rotates, it drives the pointer to rotate.

2. The can pull ring defect detection device according to claim 1, characterized in that: A second fixed block is fixedly connected to the upper end of the mounting plate, and a first fixed block is slidably connected between the matching frame and the second fixed block. The second fixed block and the first fixed block are both arc-shaped so as to be able to fit and abut against the outer wall of the can. The outer wall of the rotating wheel abuts against the first fixed block, and a plurality of first springs are fixedly connected between the first fixed block and the second fixed block.

3. The can pull ring defect detection device according to claim 1, characterized in that: A second clamping arm and a first clamping arm are provided below the connecting barrel. The second clamping arm and the first clamping arm are both rotatably connected to the bottom of the adjacent curved clamping arm. A second reset torsion spring is clamped between the second clamping arm and the first clamping arm and the adjacent curved clamping arm. The inner wall of the second clamping arm and the outer wall of the first clamping arm abut against each other. The front ends of the second clamping arm and the first clamping arm are fixedly connected to the limiting gear.

4. The can pull ring defect detection device according to claim 3, characterized in that: The bottom of the curved arm is also fixedly connected to the first telescopic air tube, and the bottom of the first telescopic air tube is fixedly connected to the first tooth, the outer wall of the first tooth is engaged with the limit gear, the upper end of the sliding circular plate is fixedly connected to the second telescopic air tube, the second telescopic air tube and the first telescopic air tube are fixedly connected through a matching tube, and the outer wall of the matching tube is fixedly passed through the interior of the connecting tube and the curved arm, the upper end of the second telescopic air tube is fixedly connected to the matching arm, and a sliding opening is provided on the sliding circular plate, and a connecting block is fixedly connected to the inner wall of the connecting barrel, and the connecting block is located directly below the sliding opening. When the connecting block passes through the interior of the sliding opening, the upper end of the connecting block abuts against the bottom of the matching arm.

Images