CN-121994432-A - Follow-up type metal barrel sealing detection equipment and detection method

CN121994432ACN 121994432 ACN121994432 ACN 121994432ACN-121994432-A

Abstract

The invention relates to the technical field of air tightness detection, in particular to follow-up metal barrel sealing detection equipment and a detection method, comprising a machine table and a rotating disc rotatably arranged on the machine table, wherein a fixed rod is fixed on the rotating disc, and a controller is fixed at the end part of the fixed rod; the device comprises a controller, a cylinder, an internal support mechanism, a sealing plate, a sealing air bag, a baffle, a conduction switching mechanism and a follow-up adjusting mechanism, wherein the sealing plate is fixed at the telescopic end of the cylinder, the pumping air bag is fixed on the sealing plate, the baffle is fixed in the pumping air bag, the conduction switching mechanism is arranged in the pumping air bag, the piston plate which is connected with the pumping air bag in a sliding sealing manner is connected to the conduction switching mechanism, the internal support mechanism is arranged in the pumping air bag, a plurality of sealing blocks which are distributed at equal intervals in circumference are connected to the internal support mechanism, and the follow-up adjusting mechanism is further arranged in the pumping air bag.

Inventors

YAO CHENGMING
LV ZHIQIANG
ZHANG YUQIANG

Assignees

常州菲莫斯桶业有限公司

Dates

Publication Date: 20260508
Application Date: 20260410

Claims (10)

1.A follow-up metal bucket seal detection apparatus comprising: the machine comprises a machine table and a rotating disc rotatably installed on the machine table, wherein a fixed rod is fixed on the rotating disc, and a controller is fixed at the end part of the fixed rod; characterized by further comprising: The air cylinder is fixed in the controller, a sealing disc is fixed at the telescopic end of the air cylinder, a pump air cylinder is fixed on the sealing disc, a sealing air bag is fixed on the pump air cylinder, and a partition plate is fixed in the pump air cylinder; The conduction switching mechanism is arranged in the pump cylinder, a piston disc which is connected with the pump cylinder in a sliding sealing manner is connected to the conduction switching mechanism, the piston disc can act when the air pressure in the pump cylinder changes, and the conduction state of the sealing air bag and the pump cylinder is adjusted through the conduction switching mechanism; The internal support mechanism is arranged in the pump cylinder, a plurality of sealing blocks distributed at equal intervals in circumference are connected to the internal support mechanism, a follow-up adjusting mechanism is further arranged in the pump cylinder, and the follow-up adjusting mechanism can adjust the interval between the sealing blocks through the internal support mechanism when the piston disc moves.
2. The follow-up metal barrel seal detection device according to claim 1, wherein the conduction switching mechanism comprises a guide post which is fixed in the pump cylinder and fixedly connected with the partition plate, the guide post is in sliding sealing connection with the piston disc, a second spring is sleeved on the guide post, and two ends of the second spring are respectively abutted with the pump cylinder and the piston disc; The device also comprises a plugging component and a conveying component which are arranged in the pump cylinder.
3. The follow-up metal bucket seal inspection apparatus according to claim 2, wherein the plugging assembly includes a first air feed hole and a second air feed hole formed in a circumferential outer wall of the pump cylinder, and wherein the piston plate is fixed with a plugging ring, and wherein the circumferential outer wall of the plugging ring is formed with an air discharge hole in conductive engagement with the first air feed hole and the second air feed hole.
4. A follow-up type metal bucket seal inspection apparatus according to claim 3, wherein the delivery assembly includes a first air feed pipe and a second air feed pipe fixed to a circumferential outer wall of the pump cylinder, the first air feed pipe being in communication with the first air feed hole and the seal air bag, and the second air feed pipe being in communication with the second air feed hole.
5. The follow-up metal barrel seal detection device according to claim 1, wherein the internal stay mechanism comprises a support plate fixed in the pump cylinder, a plurality of sliding grooves distributed at equal intervals in circumference are formed in the support plate, and sliding blocks are slidably mounted in the sliding grooves.
6. The follow-up metal bucket seal inspection apparatus according to claim 5, wherein the inner support mechanism further comprises a support sleeve fixed on the side wall of the sliding block, a support rod axially slides in the support sleeve, the support rod is fixedly connected with the sealing block, and a first spring abutting against the support rod is fixed in the support sleeve.
7. The follow-up metal barrel seal detection device according to claim 6, wherein the follow-up adjustment mechanism comprises a rotating rod rotatably installed in the pump cylinder, a movable plate is fixed at the end of the rotating rod, a plurality of inclined grooves distributed at equal intervals in circumference are formed on the movable plate, and a limit column in sliding fit with the inclined grooves is fixed on the sliding block.
8. The follow-up metal bucket seal detection device according to claim 7, wherein the follow-up adjustment mechanism further comprises a spiral groove and a vertical groove formed on the outer wall of the circumference of the rotating rod, a sliding sleeve sleeved on the rotating rod is fixed on the piston disc, and a limiting block which is in sliding fit with the spiral groove and the vertical groove is fixed on the inner wall of the sliding sleeve.
9. The follow-up metal bucket seal detection device according to claim 1, wherein the first guide plate and the second guide plate are rotatably installed on the machine table, and a guide plate is fixed on the machine table and is matched with the first guide plate and the second guide plate to form a feeding channel.
10. A follow-up type metal barrel seal detection method, employing the follow-up type metal barrel seal detection apparatus as claimed in any one of claims 1 to 9, comprising the steps of: Step one, guiding a metal barrel to move onto a rotating disc through a feeding channel; Step two, under the action of the air cylinder, the sealing disc is controlled to be attached to the top of the metal barrel, and the pump air cylinder is controlled to be inserted into the metal barrel; Pumping air into the pump cylinder, and controlling the piston disc to move under the action of air pressure, so that the sealing air bag is inflated firstly through the conduction switching mechanism, and the inner wall of the metal barrel is sealed under the action of the sealing air bag; And fourthly, the piston disc drives the follow-up adjusting mechanism to move, and the inner supporting mechanism controls the sealing block to perform opening action so as to guide the sealing air bag to be tightly attached to the inner wall of the metal barrel, and when the sealing air bag is inflated, the switching mechanism is conducted to control the gas in the pump cylinder to be conveyed into the metal barrel for airtight detection.

Description

Follow-up type metal barrel sealing detection equipment and detection method Technical Field The invention relates to the technical field of air tightness detection, in particular to follow-up metal barrel sealing detection equipment and a detection method. Background The metal tub is a widely used packing and transportation container, and its sealing property is important to ensure safe storage and transportation of contents. Therefore, a strict air tightness test must be performed before the production or reuse of the metal tub. The detection is typically performed by injecting a gas (e.g., air) at a certain pressure into the sealed tub and monitoring the pressure drop over a certain period of time to determine the presence of a leak. In the prior art, a key step of detecting the air tightness of a metal barrel is to rapidly and reliably seal an opening of the metal barrel so as to establish a closed detection chamber. The most common plugging mode is to use a rigid or semi-rigid 'sealing plug', which is usually designed as a tapered cylinder or a stepped shaft, and is forced into the opening of the metal barrel by mechanical force, and sealing is realized by means of huge static friction force generated by interference fit of the tapered surface of the plug and the inner wall of the barrel opening; However, in order to achieve an interference fit, the rigid or semi-rigid plug must be forced into the bung with a large axial force, which creates a severe sliding friction between the conical surface of the plug and the inner wall of the metal bung, which can severely wear the sealing surface of the plug over time, reduce its sealing performance and shorten its service life, and friction can scratch or abrade the inner wall of the metal bung as well, which can affect the anti-corrosion performance of the bung itself or cause secondary pollution for some barrels that require re-use or coating of the inner wall. Disclosure of Invention The invention aims to provide follow-up type metal barrel sealing detection equipment and a detection method, which are used for solving the problems in the background technology. In order to achieve the above purpose, the present invention provides the following technical solutions: a follow-up metal bucket seal detection apparatus comprising: the machine comprises a machine table and a rotating disc rotatably installed on the machine table, wherein a fixed rod is fixed on the rotating disc, and a controller is fixed at the end part of the fixed rod; Further comprises: The air cylinder is fixed in the controller, a sealing disc is fixed at the telescopic end of the air cylinder, a pump air cylinder is fixed on the sealing disc, a sealing air bag is fixed on the pump air cylinder, and a partition plate is fixed in the pump air cylinder; The conduction switching mechanism is arranged in the pump cylinder, a piston disc which is connected with the pump cylinder in a sliding sealing manner is connected to the conduction switching mechanism, the piston disc can act when the air pressure in the pump cylinder changes, and the conduction state of the sealing air bag and the pump cylinder is adjusted through the conduction switching mechanism; The internal support mechanism is arranged in the pump cylinder, a plurality of sealing blocks distributed at equal intervals in circumference are connected to the internal support mechanism, a follow-up adjusting mechanism is further arranged in the pump cylinder, and the follow-up adjusting mechanism can adjust the interval between the sealing blocks through the internal support mechanism when the piston disc moves. The on-switching mechanism comprises a guide post which is fixed in the pump cylinder and is fixedly connected with the partition board, the guide post is in sliding sealing connection with the piston disc, a second spring is sleeved on the guide post, and two ends of the second spring are respectively abutted with the pump cylinder and the piston disc; The device also comprises a plugging component and a conveying component which are arranged in the pump cylinder. In still a further aspect of the present invention, the plugging assembly includes a first air supply hole and a second air supply hole formed on a circumferential outer wall of the pump cylinder, and a plugging ring is fixed to the piston disc, and an air exhaust hole in conductive engagement with the first air supply hole and the second air supply hole is formed on the circumferential outer wall of the plugging ring. In still a further aspect of the present invention, the delivery assembly includes a first air supply pipe and a second air supply pipe fixed to a circumferential outer wall of the pump cylinder, the first air supply pipe being connected to the first air supply hole and the sealing bladder, and the second air supply pipe being connected to the second air supply hole. As a still further proposal of the invention, the internal support mechanism comprises a sup