A paper-plastic composite packaging oxygen permeability rapid tester

Abstract

The utility model discloses a paper -plastic composite packaging oxygen permeability rate quick tester relates to paper -plastic composite packaging oxygen permeability test technical field. The utility model discloses a differential pressure method gas permeation appearance, the differential pressure method gas permeation appearance top hinged has the blocking shell, the blocking shell positive side has been seted up in the notched, still include: detection mechanism and sealing mechanism, sealing mechanism sets up at the bottom of upper test chamber, sealing mechanism includes the inner square groove of setting up in the inside of upper test chamber, the square frame of sliding connection has in the inside of inner square groove, square frame bottom fixedly connected with sealing washer. Through setting sealing mechanism, specifically is the continuous downward movement of upper test chamber, will spring no.

Description

Technical Field

[0001] This utility model belongs to the field of oxygen permeability testing technology for paper-plastic composite packaging, and in particular relates to a rapid oxygen permeability tester for paper-plastic composite packaging. Background Technology

[0002] The rapid oxygen permeability tester for paper-plastic composite packaging is a precision instrument specifically designed to measure the oxygen permeation rate of flexible packaging materials (such as packaging bags and films made of paper and plastic film composites).

[0003] Traditional testing instruments require applying vacuum grease to the lower test chamber before testing paper-plastic composite packaging bags. After cleaning the grease from your hands, you place the paper-plastic composite packaging bag on the lower test chamber and push the upper test chamber downwards to cooperate with the lower test chamber to compress and seal the paper-plastic composite packaging bag. This process is cumbersome, time-consuming, and severely reduces testing efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a rapid oxygen permeability tester for paper-plastic composite packaging. By setting a sealing mechanism, specifically, the continuous downward movement of the upper test chamber compresses the spring, and the square frame is pushed to make the sealing gasket tightly adhere to the paper-plastic composite packaging bag, thereby improving the sealing effect. Then, the testing process can be carried out. This method can quickly complete the loading process without the need to apply grease, which greatly improves the testing time. It solves the problem that traditional testers require applying vacuum grease to the lower test chamber before testing paper-plastic composite packaging bags, and then cleaning the grease off the hands, which is a cumbersome and time-consuming operation.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: This utility model relates to a rapid oxygen permeability tester for paper-plastic composite packaging, comprising a differential pressure gas permeator, wherein a baffle is hinged to the top of the differential pressure gas permeator, and a slot is formed on the front of the baffle. It also includes: The detection mechanism, located inside the baffle, includes a lower test chamber fixedly connected to the top of the differential pressure gas permeameter, an upper test chamber positioned above the lower test chamber, and a fixing seat on the back of the lower test chamber, the bottom of which is fixedly connected to the top of the differential pressure gas permeameter; and A sealing mechanism is provided at the bottom of the upper test chamber. The sealing mechanism includes an inner square groove opened inside the upper test chamber. A square frame is slidably connected inside the inner square groove. A sealing gasket is fixedly connected to the bottom of the square frame. A sealing ring is sleeved on the bottom inner side of the inner square groove. Several springs are fixedly connected to the top of the square frame. The lower test chamber is used to place the paper-plastic composite packaging bag, the square frame is used to squeeze, fix and seal the paper-plastic composite packaging bag, and the sealing gasket is used to contact the paper-plastic composite packaging bag to ensure the airtightness.

[0006] Furthermore, a fixing plate is fixedly connected to the front of the fixing base. The fixing plate is positioned above the upper test cavity. A threaded hole is opened at the center of the fixing plate. A threaded rod is installed in the threaded hole on the fixing plate. A throttle is fixedly connected to the top of the threaded rod, and a convex shaft is fixedly connected to the bottom of the threaded rod. Since the lower half of the threaded rod has no threads, the upper test cavity can be quickly pushed downward a certain distance. The upper part of the threaded rod is threaded, and the threaded rod is threaded to the threaded hole on the fixed plate through the thread of the upper part.

[0007] Furthermore, a limiting ring and two limiting rods are fixedly connected to the top of the upper test cavity. The limiting ring is located at the center of the top of the upper test cavity, and a spring is sleeved on the outside of the limiting rod. The limiting ring is used to limit the threaded rod so that the threaded rod can rotate smoothly and smoothly pull or push the upper test cavity.

[0008] Furthermore, the convex shaft is rotatably connected inside the limiting ring, the top of the throttle is fixedly connected to the convex plate at the top of the limiting rod, the bottom of the throttle is fixedly connected to the top of the fixed plate, the limiting rod slides through the fixed plate and extends to the outside, the top of the limiting rod is provided with a convex plate, and the limiting ring cooperates with the convex shaft to limit the threaded rod; the limiting rod is used to limit the movement of the upper test cavity, so that the upper test cavity moves in a linear manner.

[0009] Furthermore, the bottom of the square frame penetrates through the upper test cavity and extends to the outside, the inner side of the square frame contacts the outer side of the sealing ring, the top of the second spring is fixedly connected to the top of the inner wall of the inner square groove, the second spring is used to apply a downward thrust to the square frame, and the sealing ring is used to seal the gap between the square frame and the inner square groove.

[0010] This utility model has the following beneficial effects: This invention utilizes a sealing mechanism. Specifically, the paper-plastic composite packaging bag is placed on top of the lower test chamber. Then, pressing the handle downwards causes the threaded rod to move the upper test chamber rapidly downwards. At this point, the square frame contacts and presses against the paper-plastic composite packaging bag through the bottom sealing gasket. Once the threads on the threaded rod contact the fixing plate, rotating the handle clockwise causes the threaded rod to move the upper test chamber downwards, compressing the spring. This pushes the square frame, causing the sealing gasket to adhere tightly to the paper-plastic composite packaging bag, improving the sealing effect. Testing can then be performed. This method allows for rapid loading, eliminates the need for grease application, and significantly reduces testing time.

[0011] This utility model features a limiting rod. Specifically, when the upper test chamber moves downward, the limiting rod moves downward along with it and compresses the spring. When the upper test chamber is pulled upward and the threads on the threaded rod disengage from the fixing plate, the upper test chamber will quickly spring back to its original position due to the elastic force of the spring. This allows the bottom of the lower test chamber to be opened quickly, facilitating the replacement of the paper-plastic composite packaging bag and further improving testing efficiency.

[0012] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the internal structure of the baffle shell of this utility model; Figure 3 This is a schematic diagram of the internal cross-sectional structure of the upper test chamber of this utility model; Figure 4 This utility model Figure 3 A magnified structural diagram of A in the middle; Figure 5 This is a schematic diagram of the bottom structure of the upper test chamber of this utility model; Figure 6 This is a schematic diagram of the top structure of the upper test chamber of this utility model.

[0015] The attached diagram lists the components represented by each number as follows: 1. Differential pressure gas permeameter; 11. Sheath; 12. Groove; 2. Detection mechanism; 21. Lower test chamber; 22. Upper test chamber; 221. Limiting ring; 222. Limiting rod; 223. Spring 1; 23. Fixing seat; 231. Fixing plate; 232. Threaded rod; 233. Rotary handle; 234. Protruding shaft; 3. Sealing mechanism; 31. Inner square groove; 32. Square frame; 33. Sealing gasket; 34. Sealing ring; 35. Spring 2. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0017] Please see Figures 1-6 As shown, this utility model is a rapid oxygen permeability tester for paper-plastic composite packaging, including a differential pressure gas permeator 1, a baffle 11 hinged to the top of the differential pressure gas permeator 1, and a slot 12 opened on the front of the baffle 11, and also includes: The detection mechanism 2 is located inside the baffle 11. The detection mechanism 2 includes a lower test chamber 21 fixedly connected to the top of the differential pressure gas permeator 1, an upper test chamber 22 located above the lower test chamber 21, and a fixing seat 23 located on the back of the lower test chamber 21. The bottom of the fixing seat 23 is fixedly connected to the top of the differential pressure gas permeator 1. The sealing mechanism 3 is located at the bottom of the upper test chamber 22. The sealing mechanism 3 includes an inner square groove 31 formed inside the upper test chamber 22, a square frame 32 slidably connected inside the inner square groove 31, a sealing gasket 33 fixedly connected to the bottom of the square frame 32, and a sealing ring 34 fitted inside the bottom of the inner side of the inner square groove 31. 2. Several springs 35 are fixedly connected to the top. The paper-plastic composite packaging bag is placed on top of the lower test chamber 21. Then, the handle 233 is pressed down, causing the threaded rod 232 to drive the upper test chamber 22 to move rapidly downwards. At this time, the square frame 32 contacts and presses against the paper-plastic composite packaging bag through the bottom sealing gasket 33. When the thread on the threaded rod 232 contacts the fixing plate 231, the handle 233 is rotated clockwise, causing the threaded rod 232 to drive the upper test chamber 22 downwards. The springs 35 are then compressed, and the square frame 32 is pushed, causing the sealing gasket 33 to adhere tightly to the paper-plastic composite packaging bag, improving the sealing effect. Testing can then be performed. This method can quickly complete the upper test chamber test. The material does not require grease application, significantly improving testing time. The lower test chamber 21 is used to place the paper-plastic composite packaging bag. The square frame 32 is used to compress, fix, and seal the paper-plastic composite packaging bag. The sealing gasket 33 is used to contact the paper-plastic composite packaging bag to ensure sealing. A fixing plate 231 is fixedly connected to the front of the fixing base 23, positioned above the upper test chamber 22. A threaded hole is opened at the center of the fixing plate 231, and a threaded rod 232 is installed inside the threaded hole. A handle 233 is fixedly connected to the top of the threaded rod 232, and a convex shaft 234 is fixedly connected to the bottom of the threaded rod 232. The upper half of the threaded rod 232 is threaded, and the threaded rod 232 passes through the upper half... The threaded connection is made to the threaded hole on the fixed plate 231; a limiting ring 221 and two limiting rods 222 are fixedly connected to the top of the upper test cavity 22. The limiting ring 221 is located at the center of the top of the upper test cavity 22, and a spring 223 is sleeved on the outside of the limiting rods 222; when the upper test cavity 22 moves downward, the limiting rods 222 will move downward along with it and squeeze the spring 223. When the upper test cavity 22 is pulled upward and the thread on the threaded rod 232 is disengaged from the fixed plate 231, the upper test cavity 22 will quickly rebound upward and reset due to the elastic force of the spring 223, which can quickly open the bottom of the lower test cavity 21, making it convenient to replace the paper-plastic composite packaging bag and further improving the testing efficiency;A convex shaft 234 is rotatably connected inside a limiting ring 221. The top of a handle 233 is fixedly connected to a convex plate on the top of a limiting rod 222, and the bottom of a handle 233 is fixedly connected to the top of a fixed plate 231. The limiting rod 222 slides through the fixed plate 231 and extends to the outside. The top of the limiting rod 222 is a convex plate. The limiting ring 221 and the convex shaft 234 cooperate to limit the threaded rod 232. The bottom of a square frame 32 passes through the upper test cavity 22 and extends to the outside. The inner side of the square frame 32 contacts the outer side of a sealing ring 34. The top of a second spring 35 is fixedly connected to the top of the inner wall of the inner square groove 31. The second spring 35 is used to apply a downward thrust to the square frame 32, and the sealing ring 34 is used to seal the gap between the square frame 32 and the inner square groove 31.

[0018] One specific application of this embodiment is: In use, pull the baffle 11 upwards and flip it over through the slot 12, placing the baffle 11 in reverse on top of the differential pressure gas permeameter 1. Then, place the paper-plastic composite packaging bag to be tested on top of the lower test chamber 21. After placement, press the handle 233 downwards, and the threaded rod 232 will drive the upper test chamber 22 to move downwards quickly. At this time, the limit rod 222 will move downwards along with it and squeeze the spring 223. Simultaneously, the square frame 32 will contact and press the paper-plastic composite packaging bag through the bottom sealing gasket 33. When the thread on the threaded rod 232 contacts the fixing plate 231, turn the handle 233 clockwise to connect the threaded rod 232 with the fixing plate 231. The bottom of the threaded rod 232 is then connected through... The convex shaft 234 rotates inside the limiting ring 221. At this time, the continuous rotation of the threaded rod 232 will continuously push the upper test chamber 22 downward. The upper test chamber 22 will slide on the square frame 32 through the inner square groove 31, and at the same time, it will squeeze several springs 35. Under the action of elasticity, the square frame 32 will have a downward thrust, so that the sealing gasket 33 is tightly attached to the paper-plastic composite packaging bag, thereby improving the sealing effect. At the same time, the sealing ring 34 contacts the inner side of the square frame 32 to seal the gaps. By continuously squeezing the upper test chamber 22 downward, the feeding process can be completed quickly. Finally, the baffle 11 is flipped down and reset, and the oxygen permeability test can be performed. The model of the differential pressure gas permeator 1 is VAC-V2. After the test is completed, open the cover 11, then turn the handle 233 counterclockwise and drive the threaded rod 232 upward. When the thread on the threaded rod 232 disengages from the fixing plate 231, the upper test chamber 22 will quickly rebound upward and reset due to the elastic force of the spring 223, which can quickly open the bottom of the lower test chamber 21. At this time, the paper-plastic composite packaging bag can be taken out and replaced with other paper-plastic composite packaging bags to carry out the test again.

[0019] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0020] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the present utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the present utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A rapid oxygen permeability tester for paper-plastic composite packaging, comprising a differential pressure gas permeator (1), wherein a baffle (11) is hinged to the top of the differential pressure gas permeator (1), and a slot (12) is provided on the front of the baffle (11), characterized in that, Also includes: The detection mechanism (2) is located inside the baffle (11). The detection mechanism (2) includes a lower test chamber (21) fixedly connected to the top of the differential pressure gas permeator (1), an upper test chamber (22) above the lower test chamber (21), and a fixing seat (23) on the back of the lower test chamber (21). The bottom of the fixing seat (23) is fixedly connected to the top of the differential pressure gas permeator (1). A sealing mechanism (3) is provided at the bottom of the upper test chamber (22). The sealing mechanism (3) includes an inner square groove (31) opened inside the upper test chamber (22). A square frame (32) is slidably connected inside the inner square groove (31). A sealing gasket (33) is fixedly connected to the bottom of the square frame (32). A sealing ring (34) is sleeved on the bottom of the inner side of the inner square groove (31). Several springs (35) are fixedly connected to the top of the square frame (32). The lower test chamber (21) is used to place the paper-plastic composite packaging bag, the square frame (32) is used to squeeze, fix and seal the paper-plastic composite packaging bag, and the sealing gasket (33) is used to contact the paper-plastic composite packaging bag to ensure the airtightness.

2. The rapid oxygen permeability tester for paper-plastic composite packaging according to claim 1, characterized in that, The fixing base (23) is fixedly connected to the front of the fixing plate (231), the fixing plate (231) is set above the upper test chamber (22), the fixing plate (231) has a threaded hole at the center, the threaded rod (232) is provided in the threaded hole on the fixing plate (231), the top of the threaded rod (232) is fixedly connected to the handle (233), and the bottom of the threaded rod (232) is fixedly connected to the convex shaft (234). The upper part of the threaded rod (232) is threaded, and the threaded rod (232) is threaded to the threaded hole on the fixing plate (231) through the thread of the upper part.

3. The rapid oxygen permeability tester for paper-plastic composite packaging according to claim 2, characterized in that, The upper test chamber (22) is fixedly connected to a limiting ring (221) and two limiting rods (222). The limiting ring (221) is located at the center of the top of the upper test chamber (22), and a spring (223) is sleeved on the outside of the limiting rods (222).

4. The rapid oxygen permeability tester for paper-plastic composite packaging according to claim 3, characterized in that, The convex shaft (234) is rotatably connected inside the limiting ring (221). The top of the throttle (233) is fixedly connected to the convex plate at the top of the limiting rod (222). The bottom of the throttle (233) is fixedly connected to the top of the fixing plate (231). The limiting rod (222) slides through the fixing plate (231) and extends to the outside.

5. A rapid oxygen permeability tester for paper-plastic composite packaging according to claim 4, characterized in that, The bottom of the square frame (32) passes through the upper test cavity (22) and extends to the outside. The inner side of the square frame (32) contacts the outer side of the sealing ring (34). The top of the second spring (35) is fixedly connected to the top of the inner wall of the inner square groove (31).

6. The rapid oxygen permeability tester for paper-plastic composite packaging according to claim 5, characterized in that, The second spring (35) is used to apply a downward thrust to the square frame (32), and the sealing ring (34) is used to seal the gap between the square frame (32) and the inner square groove (31).

7. A rapid oxygen permeability tester for paper-plastic composite packaging according to claim 4, characterized in that, The top of the limiting rod (222) is provided with a convex plate, and the limiting ring (221) cooperates with the convex shaft (234) to limit the threaded rod (232).

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