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CN-121994431-A - Equipment and method for rapidly and accurately detecting tightness based on chemical plastic bucket

CN121994431ACN 121994431 ACN121994431 ACN 121994431ACN-121994431-A

Abstract

The invention discloses a device and a method for rapidly and accurately detecting tightness based on a chemical plastic bucket, and relates to the technical field of chemical plastic bucket detection machinery, wherein the device comprises an inflation mechanism, a bucket body, a bucket opening arranged at the top of the bucket body, a clamping mechanism for clamping the bucket body, a lifting mechanism, a sealing mechanism, a detection mechanism and a controller; the sealing plates on two sides are driven to move towards opposite sides by the driving assembly, meanwhile, the multipoint inner supporting assembly is used for multipoint inner supporting of the bung hole, opposite sides of two rubber strips at the bottom are in contact with each other and wrap the bottom of the outer wall of the bung hole, opposite sides of two rubber strips at the top are in contact with each other and wrap the outer wall of a circular plate above the bung hole, opposite sides of one rubber strip on the left side and the right side are in contact with each other, sealing of the bung hole is completed, and the problem that deformation occurs to the bung hole can be avoided compared with the prior art through extrusion sealing of the outer side of the bung hole and multipoint supporting of the inner side of the bung hole, so that accurate detection of sealing of a chemical plastic bung can be guaranteed.

Inventors

  • Tang Canliang
  • TANG JIANFENG
  • KONG LIFEI

Assignees

  • 杭州亚泰包装容器有限公司

Dates

Publication Date
20260508
Application Date
20260114

Claims (10)

  1. 1. The quick and accurate detection device for the tightness based on the chemical plastic barrel is characterized by comprising an inflation mechanism (1), a barrel body (3), a barrel opening (4) arranged at the top of the barrel body (3), a clamping mechanism (2) for clamping the barrel body (3), a lifting mechanism (5), a sealing mechanism (6), a detection mechanism (7) and a controller (8); The sealing mechanism (6) comprises a connecting component (61), the lifting mechanism (5) is used for lifting the connecting component (61), a driving component (62) and a circular plate (66) are arranged on the connecting component (61), the driving component (62) is used for driving two sealing plates (63) to move towards opposite directions, rubber strips I (64) are arranged at the front end and the rear end of the opposite sides of the two sealing plates (63), rubber strips II (65) connected with the front rubber strip I (64) are arranged at the upper end and the lower end of the opposite sides of the two sealing plates (63), the opposite sides of the two rubber strips II (65) at the bottom are contacted with each other and wrapped at the bottom of the outer wall of the bunghole (4), the opposite sides of the two rubber strips II (65) at the top are contacted with each other and wrapped on the outer wall of the circular plate (66) above the bunghole (4), hollow shafts (68) are connected with each other in a rotating mode through sealing bearings (67), hollow shafts (68) are arranged on the connecting component (61) and are used for driving hollow shafts to rotate, and a plurality of supporting components (68) are arranged in the bunghole (610); The detection mechanism (7) comprises an air pipe (71) and a hose (72) communicated with the air pipe (71), the hose (72) is communicated with a connecting pipe (661) arranged on the circular plate (66), a pressure gauge (73) is arranged on the air pipe (71), and the inflation mechanism (1) is used for inflating compressed air into the air pipe (71).
  2. 2. The rapid and accurate detection device for tightness based on chemical plastic tanks according to claim 1, characterized in that the connection assembly (61) comprises a guide rail (611), and a connection frame (612) connected with a circular plate (66) is arranged at the bottom of the guide rail (611).
  3. 3. The rapid and accurate detection device for tightness based on chemical plastic barrels according to claim 2, wherein the driving assembly (62) comprises an electric bidirectional screw rod (621) arranged on a guide rail (611), two end threads of the electric bidirectional screw rod (621) are respectively connected with a vertical rod (622) in a threaded manner, the vertical rods (622) on two sides are respectively fixedly connected with the sealing plates (63) on two sides, transverse rods (623) are respectively arranged at the front end and the rear end of the vertical rods (622), and guide rods (624) in sliding connection with the transverse rods (623) are respectively arranged at the front side and the rear side of the guide rail (611).
  4. 4. The rapid and accurate detection device for tightness based on chemical plastic barrels according to claim 2, wherein the rotating assembly (69) comprises a gear motor (691) arranged on a connecting frame (612), an output shaft of the gear motor (691) is connected with a rotating frame (692), the rotating frame (692) is fixedly connected with a hollow shaft (68), and the bottom of the rotating frame (692) is movably connected with a universal rolling ball (693) contacted with the top of a sealing plate (63).
  5. 5. The rapid and accurate detection device based on the tightness of the chemical plastic barrel according to claim 1, wherein the multi-point inner support assembly (610) comprises a through groove (6101) vertically arranged on a hollow shaft (68), a sliding block (6102) is connected to the through groove (6101) in a sliding manner, an inclined rod (6103) is evenly hinged to the outer side of the sliding block (6102), a fixing frame (6104) is hinged to the bottom of the inclined rod (6103), the fixing frame (6104) is in sliding connection with a guide plate (6105) arranged on the hollow shaft (68), a rotary drum (6106) is connected to the fixing frame (6104) in a rotating manner through a bearing, a protective sleeve (7) in contact with the inner wall of the barrel opening (4) is fixedly sleeved on the outer side of the rotary drum (6106), the bottom of the sliding block (6102) is connected with a movable rod (6108) in a sliding manner, the mounting rod (6109) is detachably connected to the bottom of the hollow shaft (68), a reset spring (61012) is arranged on the top of the movable rod (6108), an inner ring (61012) is connected to the top of the movable rod (61012), and the sliding block (61012) is connected to the hollow shaft (61012) in a sliding manner, and the electric telescopic rod (61013) is detachably connected to the hollow shaft (68), and the extrusion block (61012) is provided with a sealing ring (61014) which is contacted with the convex ring (61011).
  6. 6. The rapid and accurate detection device for tightness based on chemical plastic barrels, as set forth in claim 1, is characterized in that the inflation mechanism (1) comprises an air compressor (11), an air outlet (12) communicated with an air pipe (71) is arranged on the air compressor (11), a stop valve (13) is arranged on the air outlet (12), and a pressure release valve (74) is further arranged on the air pipe (71).
  7. 7. The rapid and accurate detection device for tightness based on chemical plastic barrels according to claim 2, wherein the clamping mechanism (2) comprises a frame (21), a placing groove (22) for placing barrels (3) is formed in the frame (21), electric push rods (23) are arranged at the periphery of the inside of the placing groove (22), and clamping plates (24) in contact with the barrels (3) are arranged at the output ends of the electric push rods (23).
  8. 8. The rapid and accurate detection device for tightness based on chemical plastic barrels according to claim 7, wherein the lifting mechanism (5) comprises a mounting frame (51) arranged on the placing groove (22), an air cylinder (52) is arranged on the mounting frame (51), a piston rod of the air cylinder (52) is connected with a guide rail (611), a connecting rod (53) is further arranged on the piston rod of the air cylinder (52), and a sliding rail (54) which is in sliding connection with the connecting rod (53) is arranged on the mounting frame (51).
  9. 9. The method for quickly and accurately detecting the tightness of the chemical plastic bucket is characterized by adopting the quick and accurately detecting device based on the tightness of the chemical plastic bucket as claimed in any one of claims 1-8, and comprises the following steps: Step one, clamping a barrel body (3) through a clamping mechanism (2), and then lifting a connecting assembly (61) through a lifting mechanism (5) so that a sealing plate (63) and a hollow shaft (68) both move downwards, and then the hollow shaft (68) can enter a barrel opening (4), and at the moment, the axis of the hollow shaft (68) coincides with the axis of the barrel opening (4); The second step, the two side sealing plates (63) are driven to move towards opposite sides by the driving assembly (62), and meanwhile, the multipoint inner supporting assembly (610) is used for multipoint inner supporting of the bung hole (4), so that the opposite sides of the two last two rubber strips (65) are contacted with each other and wrapped at the bottom of the outer wall of the bung hole (4), the opposite sides of the two top rubber strips (65) are contacted with each other and wrapped on the outer wall of a circular plate (66) above the bung hole (4), and the opposite sides of the two rubber strips (64) on the left side and the right side are contacted with each other, so that the bung hole (4) is sealed; And thirdly, inflating the air pipe (71) through the inflation mechanism (1) to enable compressed air to enter the connecting pipe (661) through the hose (72), so that the compressed air enters a space enclosed by the sealing plate (63), the circular plate (66) and the barrel opening (4), and can enter the barrel body (3), the pressure is maintained for a period of time after the pressure is detected, the numerical value of the pressure gauge (73) is observed, and when the pressure is unchanged, the tightness is qualified, and when the pressure is changed, the tightness is unqualified.
  10. 10. The method for rapidly and accurately detecting the tightness of the chemical plastic bucket according to claim 9, wherein in the third step, the lifting mechanism (5) is used for lifting, the height of the second bottom rubber strip (65) is readjusted, namely the position of the second bottom rubber strip wrapping the outer wall of the bucket opening (4) is replaced, then the hollow shaft (68) is rotated through the rotating assembly (69), and the supporting position of the inner wall is replaced when the multipoint inner supporting assembly (610) supports the inner wall of the bucket opening (4) in a multipoint manner, so that comprehensive detection of tightness of the bucket opening (4) is performed.

Description

Equipment and method for rapidly and accurately detecting tightness based on chemical plastic bucket Technical Field The invention relates to the technical field of chemical plastic bucket detection machinery, in particular to a device and a method for rapidly and accurately detecting tightness based on a chemical plastic bucket. Background The chemical plastic bucket can replace metal product containers such as stainless steel, titanium and the like in a quite large range, is corrosion-resistant storage and transportation equipment of the most ideal chemical liquid at present, and is cheap and good. The conventional chemical plastic bucket structure is generally shown in fig. 10 of the specification, and comprises a bucket body 100 and a bucket opening 200 with threads. The tightness is the most important detection after the plastic barrel is produced, the detection equipment in the prior art is to fill compressed air into an empty barrel generally, maintain the pressure for a period of time, monitor the pressure change in the barrel by using a pressure gauge, and the pressure drop indicates the existence of leakage. During specific operation, need cover sealed lid to bung hole 200 top, in order to guarantee the leakproofness between sealed lid and the bung hole 200, need exert great power and press sealed lid to on bung hole 200, because bung hole 200 is located the side of staving 100 generally for easy atress is inhomogeneous when staving 100 detects, and staving 100 can appear the slope because of the atress is inhomogeneous when detecting to influence bung hole 200's sealed effect, and then reduced the accuracy of testing result. The authorized bulletin number CN118896741B discloses a special barrel sealing performance detection device for chemical material storage and transportation, which comprises a conveying device for conveying plastic barrels and an extrusion device. The two plastic barrels are symmetrically distributed and stressed simultaneously in the detection process, so that the stability of the two plastic barrels is improved, the inclination of the plastic barrels during detection can be avoided, the tightness of the outlet of the plastic barrels is ensured, and the accuracy of the sealing detection result of the plastic barrels is improved. In the prior art, although the barrel body 100 can be clamped to avoid the inclination of the barrel body, the sealing cover is required to be pressed onto the barrel opening 200, and the barrel opening 200 is easy to deform under the larger pressure, because the chemical plastic barrel is provided with a certain elasticity, the sealing cover is used for pressing the barrel opening 200 with force, the pressure can be concentrated to act on the end face of the barrel opening 200, the barrel opening 200 can transmit the pressure to the top of the barrel body 100, so that the top of the barrel body 100 is unevenly sunk, the barrel opening 200 is easy to deform, such as the conditions of sinking, warping and diameter shrinkage and expansion, gaps are easy to appear between the barrel opening 200 and the sealing cover after deformation, the sealing detection result is affected, and the detection accuracy is reduced. Disclosure of Invention Aiming at the defects of the prior art, the invention provides a device and a method for rapidly and accurately detecting the tightness based on a chemical plastic bucket, which solve the problems existing in the prior art. The sealing mechanism comprises a connecting component, the lifting mechanism is used for lifting the connecting component, a driving component and a circular plate are arranged on the connecting component, the driving component is used for driving two sealing plates to move in opposite directions, rubber strips I are arranged at the front end and the rear end of the opposite sides of the two sealing plates, rubber strips II connected with the front rubber strip I and the rear rubber strip I are arranged at the upper end and the lower end of the opposite sides of the two sealing plates, the opposite sides of the two rubber strips II at the bottom are contacted with each other and wrapped at the bottom of the outer wall of the barrel opening, the opposite sides of the two rubber strips I at the top are contacted with each other and wrapped on the outer wall of the circular plate above the barrel opening, the circular plate is rotationally connected with a hollow shaft through a sealing bearing, a rotating component used for driving the hollow shaft to rotate is arranged on the connecting component, a multi-point supporting mechanism is arranged on the hollow shaft, and the hollow shaft is communicated with a hose, and the hose is connected with the hose. Preferably, the connecting assembly comprises a guide rail, and a connecting frame connected with the circular plate is arranged at the bottom of the guide rail. Preferably, the drive assembly is including setting up the electronic two-way lead screw