US-12618762-B2 - Forced oxidation test system

US12618762B2US 12618762 B2US12618762 B2US 12618762B2US-12618762-B2

Abstract

The present disclosure relates to a forced oxidation test system, including: forced oxidation subsystems, a first cabinet, a second cabinet, and connecting devices. Inner cavities of adjacent forced oxidation subsystems are arranged in parallel. The forced oxidation subsystems include: forced oxidation portions, inner cavities of adjacent forced oxidation portions being arranged in series. To-be-tested packages are placed on the first cabinet. The second cabinet is connected to the first cabinet through the connecting devices. The forced oxidation subsystems are arranged opposite to the to-be-tested packages. The second cabinet is configured to move along an axis of the connecting devices towards a direction adjacent to the to-be-tested packages until the inner cavities of the forced oxidation portions are sealed and mounted on the to-be-tested packages, such that a replacement gas in the inner cavities of the forced oxidation portions is permeated into the to-be-tested packages.

Inventors

Lidong HE
Yueqin LIU
Tao Wang
Zhi Li
Junhui ZHONG
Jianhua JIA
Zhihao Li
Bo Zheng
Biao Jin

Assignees

China Resources Snow Breweries Company Ltd

Dates

Publication Date: 20260505
Application Date: 20231113
Priority Date: 20230404

Claims (9)

1 . A forced oxidation test system, comprising: a plurality of forced oxidation subsystems, inner cavities of adjacent forced oxidation subsystems being arranged in parallel, the plurality of forced oxidation subsystems comprising a plurality of forced oxidation portions, inner cavities of adjacent forced oxidation portions-being arranged in series; a first cabinet, a to-be-tested package being placed on the first cabinet; and a second cabinet connected to the first cabinet through a connecting device, the plurality of forced oxidation subsystems being mounted on the second cabinet, and the forced oxidation portion being arranged opposite to the to-be-tested package, wherein the second cabinet is configured to move along an axis of the connecting devices in a direction adjacent to the to-be-tested package until the inner cavity of the forced oxidation portion is sealedly-mounted on the to-be-tested package, such that a replacement gas in the inner cavity of the forced oxidation portions is permeated into the to-be-tested package, and wherein the connecting device comprises: a drive motor mounted in the first cabinet; a synchronous transmission shaft connected to an output end of the drive motor; and a telescopic rod, a first end of a fixed section of the telescopic rod being connected to the first cabinet, a second end of the fixed section of the telescopic rod being connected to a first end of a movable section of the telescopic rod, and a second end of the movable section of the telescopic rod being connected to the second cabinet, the synchronous transmission shaft being connected to the second end of the fixed section of the telescopic rod or the first end of the movable section of the telescopic rod.
2 . The forced oxidation test system according to claim 1 , wherein each of the forced oxidation portions ( 1100 ) comprises: a seat body ( 1110 ) provided with a seat body inner cavity ( 1120 ) along a first direction, the seat body inner cavity ( 1120 ) being provided with a mounting port, wherein the first direction is configured as a mounting direction of the to-be-tested package ( 5000 ); a sealing assembly ( 1130 ) arranged in the seat body inner cavity ( 1120 ) and located at an end of the seat body inner cavity ( 1120 ) adjacent to the mounting port, the sealing assembly ( 1130 ) being sleeved between the to-be-tested package ( 5000 ) and the seat body inner cavity ( 1120 ), a replacement subcavity being formed in the seat body inner cavity ( 1120 ); and a gas replacement assembly ( 1140 ) in communication with the replacement subcavity, the gas replacement assembly ( 1140 ) being configured to feed the replacement gas into the replacement subcavity through a ventilation joint.
3 . The forced oxidation test system according to claim 2 , wherein each of the forced oxidation portions ( 1100 ) further comprises: a replacement sensing member ( 1170 ) configured to acquire temperatures and/or pressures in the plurality of mutually communicated replacement subcavities in the same forced oxidation subsystem ( 1000 ), the replacement sensing member ( 1170 ) being mounted on the seat body ( 1110 ) of any one and/or two of the forced oxidation portions ( 1100 ) in the same forced oxidation subsystem ( 1000 ), and the replacement sensing member ( 1170 ) being in communication with the replacement subcavity.
4 . The forced oxidation test system according to claim 2 , wherein the sealing assembly ( 1130 ) comprises: a sealing member ( 1131 ) configured to adjust sealing between the to-be-tested package ( 5000 ) and the seat body inner cavity ( 1120 ) through a volume change of the sealing member ( 1131 ); a sealing intake joint ( 1132 ) connected to the seat body ( 1110 ); and a sealing inflation needle ( 1133 ), a first end of the sealing inflation needle ( 1133 ) being in communication with the sealing member ( 1131 ), and a second end of the sealing inflation needle ( 1133 ) being connected to a first end of the sealing intake joint ( 1132 ), a fastening air source being fed into the sealing member ( 1131 ) by the sealing intake joint ( 1132 ) through the sealing inflation needle ( 1133 ).
5 . The forced oxidation test system according to claim 2 , wherein the gas replacement assembly ( 1140 ) comprises: a replacement intake joint ( 1141 ) arranged on a first side of the seat body ( 1110 ), the replacement intake joint ( 1141 ) being in communication with the replacement subcavity, wherein the replacement gas is fed into the replacement subcavity by the replacement intake joint ( 1141 ); and a replacement outlet joint ( 1142 ) arranged on a second side of the seat body ( 1110 ) opposite to the first side, and the replacement outlet joint ( 1142 ) being in communication with the replacement subcavity.
6 . The forced oxidation test system according to claim 5 , wherein each of the forced oxidation subsystems ( 1000 ) further comprises: a temperature regulating portion ( 1150 ) mounted at an input end of the replacement intake joint ( 1141 ), the temperature regulating portion ( 1150 ) being configured to regulate a temperature of the replacement gas entering the inner cavity of the forced oxidation portion ( 1100 ); the temperature regulating portion ( 1150 ) comprising: a heater ( 1151 ) mounted on a coil bracket ( 1154 ); an intake coil ( 1152 ), the intake coil ( 1152 ) being spirally mounted on the heater ( 1151 ), a first end of the intake coil ( 1152 ) being connected to the input end of the replacement intake joint ( 1141 ), the replacement gas being fed from the other end of the intake coil ( 1152 ); a dryer ( 1153 ) mounted at an end of the intake coil ( 1152 ) adjacent to a second end of the intake coil ( 1152 ); and a temperature sensor connected to the intake coil ( 1152 ).
7 . The forced oxidation test system according to claim 5 , wherein each of the forced oxidation subsystems ( 1000 ) further comprises: a pressure regulating portion ( 1160 ) configured to regulate a pressure of the replacement gas entering the inner cavity of the forced oxidation portion ( 1100 ), the pressure adjustment portion ( 1160 ) comprising: an intake regulating valve ( 1161 ) connected to the replacement intake joint ( 1141 ) through an air pipe; and an exhaust regulating valve ( 1162 ) connected to the replacement outlet joint ( 1142 ) through the air pipe.
8 . The forced oxidation test system according to claim 1 , wherein the first cabinet ( 2000 ) is provided with a positioning groove, and the to-be-tested package ( 5000 ) is placed in the positioning groove.
9 . The forced oxidation test system according to claim 8 , wherein a ventilation hole is provided at a bottom of the positioning groove.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS This application claims priority to Chinese patent application No. 2023103566941, filed on Apr. 4, 2023, the entire content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD The present disclosure relates to the field of packaging test technologies, and in particular, to a forced oxidation test system. BACKGROUND With the development of a packaging technology and the in-depth research on oxygen barrier properties of packaging, a current evaluation method for an overall shelf life of a product is mainly to use an environmental test chamber to conduct photothermal treatment on samples, but according to an existing direct treatment test method, only a photothermal condition can be controlled and an oxygen penetration amount cannot be controlled. As a result, a final test result differs from an actual shelf life. For example, according to test data of thin-film oxygen permeability, a 1 mm thick 25 cm2 low-density PE material has permeability of about 39.996 ml/(m2·d) at 20° C., 80% RH, and 20% O2, has permeability of about 52.953 ml/(m2·d) at 30° C., 80% RH, and 20% O2, and has permeability of about 68.862 ml/(m2·d) at 40° C., 80% RH, and 20% O2. According to Van′t Hoff's chemical reaction rules, each time a reaction temperature increases by 10 K, a reaction rate thereof becomes 2 to 4 times the original rate. Obviously, in a case where quantitative introduction of oxygen is not forced, direct treatment and study of product shelf life have obvious limitations. SUMMARY Accordingly, it is necessary to provide a forced oxidation test system to provide stable pretreated samples with different oxygen penetration degrees for shelf life simulation tests. The present disclosure provides a forced oxidation test system, including: a plurality of forced oxidation subsystems, inner cavities of adjacent forced oxidation subsystems being arranged in parallel, the plurality of forced oxidation subsystems comprising a plurality of forced oxidation portions, inner cavities of adjacent forced oxidation portions being arranged in series;a first cabinet, a to-be-tested package being placed on the first cabinet; anda second cabinet connected to the first cabinet through a connecting device, the plurality of forced oxidation subsystems being mounted on the second cabinet, and the forced oxidation portion being arranged opposite to the to-be-tested package, wherein the second cabinet is configured to move along an axis of the connecting devices in a direction adjacent to the to-be-tested package until the inner cavity of the forced oxidation portion is sealedly mounted on the to-be-tested package, such that a replacement gas in the inner cavity of the forced oxidation portions is permeated into the to-be-tested package. In one of the embodiments, each of the forced oxidation portions includes: a seat body provided with a seat body inner cavity along a first direction, the seat body inner cavity being provided with a mounting port, wherein the first direction is configured as a mounting direction of the to-be-tested package;a sealing assembly arranged in the seat body inner cavity and located at an end of the seat body inner cavity adjacent to the mounting port, the sealing assembly being sleeved between the to-be-tested package and the seat body inner cavity, a replacement subcavity being formed in the seat body inner cavity; and a gas replacement assembly in communication with the replacement subcavity, the gas replacement assembly being configured to feed the replacement gas into the replacement subcavity through a ventilation joint. In one of the embodiments, each of the forced oxidation portions further includes: a replacement sensing member configured to acquire temperatures and/or pressures in the plurality of mutually communicated replacement subcavities in the same forced oxidation subsystem, the replacement sensing member being mounted on the seat body of any one and/or two of the forced oxidation portions in the same forced oxidation subsystem, and the replacement sensing member being in communication with the replacement subcavity. In one of the embodiments, the sealing assembly includes: a sealing member configured to adjust sealing between the to-be-tested package and the seat body inner cavity through a volume change of the sealing member;a sealing intake joint connected to the seat body; anda sealing inflation needle, a first end of the sealing inflation needle being in communication with the sealing member, and a second end of the sealing inflation needle being connected to a first end of the sealing intake joint, a fastening air source being fed into the sealing member by the sealing intake joint through the sealing inflation needle. In one of the embodiments, the gas replacement assembly includes: a replacement intake joint arranged on a first side of the seat body, the replacement intake joint being in communication with the replacement subcavity,