CN219956839U

CN219956839U - Bubble cap type product sealing leak detector

Info

Publication number: CN219956839U
Application number: CN202321327392.3U
Authority: CN
Inventors: 木军龙; 孙钢
Original assignee: Boma Scientific Instrument Shanghai Co ltd
Current assignee: Boma Scientific Instrument Shanghai Co ltd
Priority date: 2023-05-29
Filing date: 2023-05-29
Publication date: 2023-11-03
Anticipated expiration: 2033-05-29

Abstract

The utility model relates to the technical field of sealing detection of blister products, in particular to a sealing leak detector for blister products; comprising the following steps: casing, servo spacing module and 3D vision camera, servo spacing module includes the limiting plate, and limiting plate one side surface transverse mounting has servo motor, servo spacing module still includes the threaded rod, threaded rod one end and servo motor output shaft, threaded rod surface threaded connection has the stopper, 3D vision camera installs at the stopper up end. The sealed leak detector for the bubble cap products is characterized in that the bubble cap products are placed in a testing cavity, vacuumizing is carried out, a servo limiting module drives a 3D vision camera to scan the whole product range, the surrounding of the bubble caps is used as reference points through image processing and operation, the surrounding average value is calculated, the numerical value of each bubble cap before and after vacuumizing is measured, and the difference value of the numerical value and the numerical value is the deformation after vacuumizing. The different leakage deformation amounts are different, so that the leakage rate of the bubble cap is detected.

Description

Bubble cap type product sealing leak detector

Technical Field

The utility model relates to the technical field of sealing detection of blister products, in particular to a sealing leak detector for blister products.

Background

The bubble cap package, also called foam package and PTP package, mainly consists of two parts, namely a plastic hard sheet with bubble holes and medicinal aluminum foil. When in packaging, the medicine is put into the hard sheet blister, and then is heat-sealed with medicinal aluminum foil, so that the independent blister package of each blister is formed. The seal integrity of each blister is particularly important because damage to one blister in the blister package does not affect the integrity of the other blisters or has a minor effect. If the blister package is poor in sealability, gases such as water vapor, oxygen and the like in the external environment can permeate into the package along the poor sealability, so that phenomena such as deliquescence, discoloration and the like of the medicine are caused. Therefore, there is a need to test the tightness of blister-type products.

The traditional sealing tester is developed by adopting a differential pressure test principle. In the test process, a sample is placed in water of a sealing tank, the internal and external pressure differences of the sample soaked in the water are caused by vacuumizing, if the sample is poor in sealing, under the action of the pressure difference, gas in the sample overflows along a leakage point on the surface of the sample, the sample is expressed as continuous bubbles on the surface of the sample in the water, or the shape recovery of the sample after the sample is expanded to release the vacuum is observed, and the sealing performance of the sample is judged, so that the design can only observe the bubbles to judge the sealing performance of the product, and the leakage rate of the product cannot be accurately detected

Therefore, how to provide a sealed leak detector for blister products, which can accurately detect the leakage rate of the products, is a technical problem to be solved by those skilled in the art.

Disclosure of Invention

The utility model aims to solve the technical problem of how to provide a bubble cap type product sealing leak detector capable of accurately detecting the leakage rate of products.

To achieve the above object, the present utility model provides a sealed leak detector for a blister-type product, comprising: casing, servo spacing module and 3D vision camera, the inside cavity that supplies to detect usefulness that is equipped with in advance of casing, and have preset automatically controlled computing system in the casing cavity, servo spacing module sets up inside the casing cavity, servo spacing module includes the limiting plate, and limiting plate one side surface transversely installs servo motor, servo spacing module still includes the threaded rod, and the threaded rod transversely sets up inside the limiting plate to threaded rod head and tail both ends constitute movable structure through pivot and limiting plate inner wall, threaded rod one end and servo motor output shaft, threaded rod surface threaded connection has the stopper, and stopper lower extreme and the inside spout sliding connection who presets of limiting plate to the stopper upper end extends to the external world from the limiting plate inside, 3D vision camera installs at the stopper up end.

The 3D vision camera adopts the existing structure on the market, and the 3D vision camera can transversely and parallelly move under the action of the servo limiting module, so that the 3D vision camera scans the whole product, and the structure is suitable for blister products with longer length and narrower width.

Preferably, the upper end face of the shell is connected with an upper cover plate, and one side of the upper cover plate and the shell form a hinge structure through a hinge.

The design makes the casing upper end form an open type opening, makes things convenient for the staff to place the product of waiting to test inside the casing.

Preferably, the lower end face of the shell is symmetrically provided with two groups of support legs, and the support legs are made of rubber.

The design of stabilizer blade plays fixed support's effect to the casing, and the rubber material has certain frictional force to make the stabilizer blade have certain antiskid performance, the guarantee is to casing fixed support's stability.

Preferably, the supporting mechanism is installed in the cavity of the shell and comprises a supporting plate, and the supporting plate is made of transparent materials.

The design of backup pad is used for placing the product of waiting to detect, and the backup pad of transparent material makes the product of 3D vision camera scanning backup pad up end, and backup pad cooperation 3D vision camera's design convenience staff place the product of waiting to detect, need not to deliberately place the product neat promptly, and the product of slope placement also can detect.

Preferably, the sealing cover is placed on the upper end face of the supporting plate, a sealing cavity is formed between the sealing cover and the supporting plate, a vacuum pump connecting pipe is connected to the outer surface of one side of the sealing cover, and the tail end of the vacuum pump connecting pipe extends from the inside of the shell to the outside.

The sealed cavity formed between the sealed cover and the supporting plate is a testing cavity, the tail end of the vacuum pump connecting pipe is connected with an external vacuum pump, and the vacuum pumping process is carried out on the inside of the sealed testing cavity through the vacuum pump.

Preferably, the supporting mechanism further comprises a supporting frame, two groups of supporting frames are symmetrically arranged on the lower end face of the supporting plate, the tail end of each supporting frame is connected with the inner wall of the cavity of the shell, and the inner surface of the middle end of each supporting frame is connected with a limiting plate in a fit mode.

The design of support frame plays fixed support effect to limiting plate and servo spacing module whole, and the required clearance when 3D vision camera scans the product is reserved in the design like this.

Preferably, the display screen is embedded and installed on the outer surface of one side of the shell, and the display screen is electrically connected with the 3D vision camera.

The display screen is electrically connected with the electronic control computing system, when the 3D vision camera transmits the scanned image to the display screen, firstly, the image information which is not vacuumized is loaded through the image source, secondly, point extraction of the peripheral edge of the capsule is carried out through statistical measurement, the peripheral score points are fitted into a plane, then the minimum value of the Z axis of the capsule placement position is detected through the statistical measurement module, the vertical distance from the minimum value to the fitted plane is calculated through the point-plane measurement module, finally, the vacuumized image information is loaded through the image source, the difference value between the points and the plane is calculated after the vacuumization is calculated according to the previous steps, and the two difference values are calculated.

The beneficial effects of the utility model are as follows:

when the utility model is used, a bubble cap product is placed in a test cavity and vacuumized, the servo limiting module drives the 3D vision camera to scan the whole product range, the surrounding of the bubble cap is used as a reference point through image processing and operation, the surrounding average value is calculated, the numerical value before and after each bubble cap is vacuumized is measured, and the difference value of the numerical value and the numerical value is the deformation after vacuumization. The different leakage deformation amounts are different, so that the leakage rate of the bubble cap is detected.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of the front view of the interior of a housing according to an embodiment of the present utility model;

FIG. 2 is a schematic top view of a servo limiting module according to an embodiment of the utility model.

Part name

1. A housing; 101. an upper cover plate; 102. a support leg; 2. a support mechanism; 201. a support plate; 202. a support frame; 3. a sealing cover; 4. a vacuum pump connecting pipe; 5. a servo limit module; 501. a limiting plate; 502. a servo motor; 503. a threaded rod; 504. a limiting block; 6. a 3D vision camera; 7. and a display screen.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.

In the description of the present utility model, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model. Furthermore, in the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

Referring to fig. 1-2, the present utility model provides a blister-type product sealed leak detector, comprising: the three-dimensional visual camera comprises a shell 1, a servo limiting module 5 and a 3D visual camera 6, wherein a cavity for detection is preset in the shell 1, an electric control computing system is preset in the cavity of the shell 1, the servo limiting module 5 is arranged in the cavity of the shell 1, the servo limiting module 5 comprises a limiting plate 501, a servo motor 502 is transversely arranged on the outer surface of one side of the limiting plate 501, the servo limiting module 5 further comprises a threaded rod 503, the threaded rod 503 is transversely arranged in the limiting plate 501, the head end and the tail end of the threaded rod 503 form a movable structure with the inner wall of the limiting plate 501 through a rotating shaft, one end of the threaded rod 503 is connected with an output shaft of the servo motor 502, the outer surface of the threaded rod 503 is in threaded connection with a limiting block 504, the lower end of the limiting block 504 is in sliding connection with a chute preset in the limiting plate 501, the upper end of the limiting block 504 extends from the inside of the limiting plate 501 to the outside, and the 3D visual camera 6 is arranged on the upper end surface of the limiting block 504;

in this embodiment, firstly, the product to be detected is placed at a designated position, firstly, the servo motor 502 is started, so that the servo motor 502 drives the threaded rod 503, the threaded rod 503 drives the limiting block 504 to move transversely and parallelly along the threads on the outer surface of the threaded rod, so that the limiting block 504 drives the 3D vision camera 6 to move above the limiting plate 501, the servo limiting module 5 realizes the purpose of driving the 3D vision camera 6 to move, the 3D vision camera 6 comprehensively scans the product which is not vacuumized, after the scanning is completed, the product is vacuumized, then the servo limiting module 5 drives the 3D vision camera 6 to move again, the 3D vision camera 6 comprehensively scans the product which is vacuumized, after the two times of scanning is completed, the deformation of the electronic control computing system is different, and the leakage rate of the product is detected.

Further, the upper end face of the shell 1 is connected with an upper cover plate 101, one side of the upper cover plate 101 and the shell 1 form a hinged structure through a hinge, two groups of support legs 102 are symmetrically arranged on the lower end face of the shell 1, and the support legs 102 are made of rubber;

in this embodiment, before using, place casing 1 to the assigned position, rubber material's stabilizer blade 102 has ensured the stability to casing 1 fixed stay, and secondly, upwards pulls upper cover plate 101 for casing 1 up end forms the opening, and the staff places the inside of casing 1 with the product that awaits measuring through the opening.

Further, a supporting mechanism 2 is arranged in the cavity of the shell 1, the supporting mechanism 2 comprises a supporting plate 201, the supporting plate 201 is made of transparent materials, a sealing cover 3 is arranged on the upper end face of the supporting plate 201, a sealing cavity is formed between the sealing cover 3 and the supporting plate 201, a vacuum pump connecting pipe 4 is connected to the outer surface of one side of the sealing cover 3, the tail end of the vacuum pump connecting pipe 4 extends from the inside of the shell 1 to the outside, the supporting mechanism 2 further comprises a supporting frame 202, two groups of supporting frames 202 are symmetrically arranged on the lower end face of the supporting plate 201, the tail end of the supporting frame 202 is connected with the inner wall of the cavity of the shell 1, and a limiting plate 501 is attached to the inner surface of the middle end of the supporting frame 202;

in this embodiment, after the opening is formed, a product to be detected is placed on the upper end surface of the supporting plate 201, then the sealing cover 3 is covered on the outer surface of the product, so as to form a sealing detection cavity, then the vacuum pump connecting pipe 4 is connected with an external real pump, and then the opening is closed, and the product before and after vacuum is scanned twice by the 3D vision camera 6.

Further, the display screen 7 is embedded and installed on the outer surface of one side of the shell 1, and the display screen 7 is electrically connected with the 3D vision camera 6;

in this embodiment, the 3D vision camera 6 may transmit the scanned image to the display screen 7, and then calculate by using the electronic control computing system, and transmit the calculated data to the display screen 7, so that the staff can record the calculated data conveniently.

The above disclosure is only a preferred embodiment of the present utility model, and it should be understood that the scope of the utility model is not limited thereto, and those skilled in the art will appreciate that all or part of the procedures described above can be performed according to the equivalent changes of the claims, and still fall within the scope of the present utility model.

Claims

1. A blister-type product seal leak detector comprising: casing (1), servo spacing module (5) and 3D vision camera (6), the inside cavity that supplies to detect of casing (1) is equipped with in advance, and has preset automatically controlled computing system in casing (1) cavity, a serial communication port, servo spacing module (5) set up inside casing (1) cavity, servo spacing module (5) include limiting plate (501), and limiting plate (501) one side surface transversely installs servo motor (502), servo spacing module (5) still include threaded rod (503), and threaded rod (503) transversely set up inside limiting plate (501) to threaded rod (503) head and tail both ends constitute the active structure through pivot and limiting plate (501) inner wall, threaded rod (503) one end and servo motor (502) output shaft, threaded rod (503) surface threaded connection has stopper (504), and stopper (504) lower extreme and limiting plate (501) inside preset spout sliding connection to outside, 3D vision camera (6) are installed on limiting plate (504) terminal surface.

2. A leak detector for blister products as defined in claim 1, wherein the upper end surface of the housing (1) is connected with an upper cover plate (101), and one side of the upper cover plate (101) forms a hinge structure with the housing (1) via a hinge.

3. A leak detector for blister-type products as defined in claim 1, wherein the lower end face of the housing (1) is symmetrically provided with two sets of legs (102), and the legs (102) are made of rubber.

4. A blister-type product sealed leak detector as claimed in claim 1, characterised in that the housing (1) has a support means (2) mounted within the cavity, the support means (2) comprising a support plate (201), and the support plate (201) being formed of a transparent material.

5. A blister-type product sealing leak detector as claimed in claim 4, wherein the upper end surface of the support plate (201) is provided with a sealing cover (3), a sealing cavity is formed between the sealing cover (3) and the support plate (201), a vacuum pump connecting pipe (4) is connected to the outer surface of one side of the sealing cover (3), and the tail end of the vacuum pump connecting pipe (4) extends from the inside of the casing (1) to the outside.

6. A sealed leak detector for blister products as defined in claim 4, wherein the supporting mechanism (2) further comprises a supporting frame (202), the supporting frame (202) is symmetrically provided with two groups at the lower end face of the supporting plate (201), the tail end of the supporting frame (202) is connected with the inner wall of the cavity of the shell (1), and the inner surface of the middle end of the supporting frame (202) is connected with a limiting plate (501) in a fitting manner.

7. A blister-type product sealing leak detector as claimed in any one of claims 1 to 6, further comprising a display screen (7), wherein the display screen (7) is mounted on an outer surface of one side of the housing (1) in an embedded manner, and the display screen (7) is electrically connected to the 3D vision camera (6).