Packaging bag sealing performance tester

Abstract

The utility model discloses a packaging bag sealing performance tester, which belongs to the packaging bag detection field, and comprises a vacuum barrel, a vacuum machine and a vibrating assembly, the vacuum barrel comprises a barrel body and a cover plate, the barrel body is internally provided with an accommodating cavity with an open upper end, the cover plate can be opened to cover the open end of the accommodating cavity, the cover plate is provided with a pressing plate, the pressing plate extends into the accommodating cavity, and the vibrating assembly is arranged on the vacuum machine. The cover plate is provided with an air exhaust connector communicated with the containing cavity, the barrel body is transparent, the vacuum machine is provided with a vacuum connector, the vacuum connector is communicated with the air exhaust connector through an air exhaust pipe, the vacuum machine is used for vacuumizing the vacuum barrel, the vibrating assembly is movably connected with the cover plate, and one end of the vibrating assembly extends into the containing cavity. The vibrating assembly is used for driving the packaging bag to shake so as to shake off bubbles attached to the surface of the packaging bag. According to the packaging bag sealing performance tester disclosed by the utility model, the pressing plate presses the packaging bag into water, and the vibrating assembly drives the guarantee bag to shake, so that bubbles attached to the packaging bag are discharged, and the testing effect is good.

Description

Technical Field

[0001] This utility model relates to the field of packaging bag testing technology, and in particular to a packaging bag sealing performance tester. Background Technology

[0002] Packaging sealing issues are often subtle and not visible to the naked eye, making them difficult to detect and address before shipment. Sealing performance testing allows companies to identify and resolve potential sealing problems before products leave the factory, preventing quality issues such as mold growth, clumping, and bulging caused by slow air or liquid leakage during distribution and storage. Sealing performance testers are primarily used for sealing tests on packaged products. These tests effectively compare and evaluate the sealing processes and performance of flexible packaging, making them ideal testing instruments for industries such as food, plastic flexible packaging, wet wipes, pharmaceuticals, and daily chemicals. They can be used to evaluate the sealing strength and integrity of packaging containers. By testing the sealing strength and integrity of packaging materials, production process indicators such as the sealing quality of packaging bags and the packaging speed of packaging machines can be controlled and adjusted to meet product usage requirements. This product is widely used by various packaging bag manufacturers, quality inspection systems, third-party testing institutions, universities, colleges, and research institutes.

[0003] The air tightness tester can be used to test the air leakage of packaging bags. The test involves filling a bucket with water, pressing the packaging bag under the water surface through a perforated plate, and then using a vacuum machine to evacuate the water. The air leakage of the packaging bag can be observed through the transparent bucket wall. Occasionally, air bubbles may accumulate at the sealing position when the packaging bag is pressed under the water, which may affect the test results. Utility Model Content

[0004] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a packaging bag sealing performance tester, in which a vibrating component can remove air bubbles from the surface of the packaging bag, resulting in good testing results.

[0005] A packaging bag sealing performance tester according to an embodiment of the present invention includes:

[0006] A vacuum container, comprising a container body and a cover plate, wherein the container body has a receiving cavity with an open upper end, the cover plate is openable and covers the open end of the receiving cavity, the cover plate is provided with a pressure plate that extends into the receiving cavity, the cover plate is provided with an air extraction port communicating with the receiving cavity, and the container body is transparent.

[0007] A vacuum machine, which has a vacuum interface and is connected to the vacuum interface via a suction pipe, is used to evacuate the vacuum tank.

[0008] A vibrating assembly is movably connected to the cover plate. One end of the vibrating assembly extends into the receiving cavity. The vibrating assembly is used to shake the packaging bag to shake off air bubbles attached to the surface of the packaging bag.

[0009] A packaging bag sealing performance tester according to an embodiment of the present utility model has at least the following beneficial effects:

[0010] During testing, water is poured into the barrel, a packaging bag is placed inside, the lid is closed, and a pressure plate submerges the bag in the water. A vibrating assembly causes the bag to shake, expelling any air bubbles adhering to it. A vacuum machine then evacuates the barrel, allowing the bag to be observed for leaks through the transparent casing. The vibrating assembly effectively removes air bubbles from the bag's surface, resulting in excellent testing results.

[0011] According to some embodiments of the present invention, the vibrating assembly includes a vibrating element, a connecting rod, and a handle. The vibrating element and the handle are respectively connected to both ends of the connecting rod. The cover plate is provided with a first through hole for the connecting rod to pass through, and the pressure plate is provided with a second through hole for the connecting rod to pass through. The vibrating element is located below the pressure plate, and the handle drives the vibrating element to move through the connecting rod to cause the packaging bag to shake.

[0012] According to some embodiments of the present invention, a sealing groove is provided in the first through hole, a sealing ring is provided in the sealing groove, and the sealing ring is sleeved on the connecting rod.

[0013] According to some embodiments of the present invention, the handle and the cover plate are spaced apart, and the connecting rod is slidably inserted through the first through hole and the second through hole.

[0014] According to some embodiments of the present invention, a spring is provided between the handle and the cover plate.

[0015] According to some embodiments of the present invention, the vibrating element is arranged in a disc shape, and the vibrating element is provided with a plurality of third through holes.

[0016] According to some embodiments of this utility model, the plate surface of the vibrating element is inclined to the axial direction of the connecting rod, and the handle drives the vibrating element to rotate through the connecting rod to cause the packaging bag to shake.

[0017] According to some embodiments of the present invention, the pressure plate is connected to the bottom of the cover plate by a pressure rod, and the pressure plate is provided with a plurality of fourth through holes.

[0018] According to some embodiments of the present invention, the vacuum machine is provided with a pressure regulating valve for adjusting the inlet pressure and a speed regulating valve for adjusting the vacuuming rate.

[0019] According to some embodiments of the present invention, the vacuum machine is equipped with a display screen and control buttons, the control buttons including a backflush button, which is used to depressurize the equipment.

[0020] Additional aspects and advantages of this invention will be set forth in part in the description which follows. Attached Figure Description

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0022] Figure 1 This is a schematic diagram of the structure of a packaging bag sealing performance tester according to an embodiment of the present utility model;

[0023] Figure 2 This is a cross-sectional view of the vacuum barrel and vibration assembly of a packaging bag sealing performance tester according to an embodiment of the present invention.

[0024] Figure 3 This is a schematic diagram of the cover plate and pressure plate of a packaging bag sealing performance tester according to an embodiment of the present invention;

[0025] Figure 4 This is a schematic diagram of the structure of a vibration component of a packaging bag sealing performance tester according to an embodiment of the present invention;

[0026] Figure 5 This is a schematic diagram of another packaging bag sealing performance tester according to an embodiment of the present invention;

[0027] Figure 6 This is a schematic diagram of the vibration component of another packaging bag sealing performance tester according to an embodiment of the present invention.

[0028] Icon labels:

[0029] 100. Vacuum container; 110. Container body; 111. Receiving cavity; 120. Cover plate; 121. Air extraction port; 122. First through hole; 123. Sealing ring; 130. Pressure plate; 131. Second through hole; 132. Pressure rod; 133. Fourth through hole;

[0030] 200. Vacuum machine; 210. Evacuation pipe; 220. Display screen; 230. Control buttons;

[0031] 300, Vibrating assembly; 310, Vibrating component; 311, Third through hole; 320, Connecting rod; 330, Handle; 340, Spring. Detailed Implementation

[0032] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0033] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0034] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0035] Please see Figure 1 , Figure 2 and Figure 3This utility model discloses a packaging bag sealing performance tester, comprising a vacuum chamber 100, a vacuum machine 200, and a vibration assembly 300. The vacuum chamber 100 includes a chamber body 110 and a cover plate 120. The chamber body 110 has a receiving cavity 111, the upper end of which is open. The cover plate 120 is openable and covers the open end of the receiving cavity 111. The upper end of the receiving cavity 111 is stepped, and a sealing element is provided at the step. When the cover plate is connected to the chamber body, the sealing element is squeezed, and the cover plate and the chamber body are snap-fitted together, making disassembly and assembly convenient. A pressure plate 130 is provided on the cover plate 120, extending into the receiving cavity 111. An air extraction port 121 communicating with the receiving cavity 111 is provided on the cover plate 120. The chamber body 110 is transparent. Vacuum machine 200 has a vacuum interface, which is connected to vacuum interface 121 via vacuum pipe 210. Vacuum machine 200 is used to evacuate vacuum container 100. Vibration assembly 300 is movably connected to cover plate 120. One end of vibration assembly 300 extends into receiving cavity 111. Vibration assembly 300 is used to shake the packaging bag, thereby shaking off air bubbles attached to the surface of the packaging bag.

[0036] During testing, water is poured into the barrel 110, a packaging bag is placed inside, the cover plate 120 is closed, and the pressure plate 130 presses the packaging bag into the water. The vibrating component 300 shakes the packaging bag, causing air bubbles attached to it to dissipate. The vacuum machine 200 creates a vacuum in the vacuum barrel 100, and the leakage of the packaging bag is observed through the transparent barrel 110. The vibrating component 300 effectively removes air bubbles from the surface of the packaging bag, resulting in good testing results.

[0037] In some embodiments, see Figure 2 , Figure 3 and Figure 4 The vibratory assembly 300 includes a vibratory element 310, a connecting rod 320, and a handle 330. The vibratory element 310 and the handle 330 are respectively connected to both ends of the connecting rod 320. A first through hole 122 is provided on the cover plate 120, and a second through hole 131 is provided on the pressure plate 130. The connecting rod 320 passes through the first through hole 122 and the second through hole 131. The vibratory element 310 is located below the pressure plate 130. The handle 330 drives the vibratory element 310 to move via the connecting rod 320, thereby causing the packaging bag to shake. When the packaging bag is pressed into the water, some air bubbles may adhere to its surface. The vibratory assembly 300 can cause the packaging bag to shake, allowing the air bubbles attached to the packaging bag to be expelled, resulting in good testing results.

[0038] The handle 330 can also serve as a handle for the cover plate 120. By holding the handle 330, the cover plate 120, the pressure plate 130 and the vibrating assembly can be installed on the barrel body 110.

[0039] In some embodiments, see Figure 2A sealing groove is provided in the first through hole 122, and a sealing ring 123 is provided in the sealing groove. The sealing ring 123 is sleeved on the connecting rod 320. There are two sealing grooves and two sealing rings 123. The sealing rings 123 are connected to the connecting rod 320 in a sealing manner to ensure the airtightness of the accommodating cavity 111 and facilitate the vacuum machine 200 to evacuate the vacuum tank 100.

[0040] In some embodiments, see Figure 1 , Figure 2 and Figure 3 The handle 330 is spaced apart from the cover plate 120, and the connecting rod 320 slides through the first through hole 122 and the second through hole 131. When the handle 330 is pressed, it causes the connecting rod 320 and the vibrator 310 to descend, and the vibrator 310 pushes the packaging bag down, making operation convenient.

[0041] In some embodiments, see Figure 1 , Figure 2 and Figure 3 A spring 340 is provided between the handle 330 and the cover plate 120. When the handle 330 is pressed, the handle 330 drives the connecting rod 320 and the vibrating element 310 to descend. When the handle 330 is released, the spring 340 can drive the handle 330 to return to its original position. The operation is convenient and the handle 330 can be pressed repeatedly.

[0042] In some embodiments, see Figure 2 , Figure 3 and Figure 4 The vibrating element 310 is arranged in a disc shape and has multiple third through holes 311. The disc shape of the vibrating element 310 facilitates full contact between the vibrating element 310 and the packaging bag. The third through holes 311 on the vibrating element 310 facilitate water flow during the rising and falling process and prevent the accumulation of air bubbles.

[0043] In some embodiments, see Figure 2 , Figure 5 and Figure 6 The vibratory element 310 is inclined to the axial direction of the connecting rod 320. The handle 330 drives the vibratory element 310 to rotate via the connecting rod 320, thereby shaking the packaging bag. The vibratory element 310 can be set at an inclination, with the vibratory element 310 abutting against the packaging bag below the water surface. The handle 330 drives the vibratory element 310 to rotate, which pushes the packaging bag to rotate, shaking off air bubbles attached to the packaging bag and ensuring the test effect.

[0044] In some embodiments, see Figure 1 , Figure 2 and Figure 3The pressure plate 130 is connected to the bottom of the cover plate 120 via the pressure rod 132. The pressure plate 130 is provided with multiple fourth through holes 133. The pressure plate 130 facilitates pressing the packaging bag into the water, and the fourth through holes 133 on the pressure plate 130 facilitate water flow and prevent air bubbles from adhering to the surface of the pressure plate 130.

[0045] In some embodiments, see Figure 1 The vacuum pump 200 is equipped with a pressure regulating valve and a speed regulating valve. The pressure regulating valve is used to adjust the inlet pressure, and the speed regulating valve is used to adjust the vacuuming rate. The vacuum pump 200 also features a display screen 220 and control buttons 230. The vacuum pump 200 has an intelligent embedded operating system, a user-friendly interface design, and a 5-inch color LCD screen 220 that provides high-definition display. It is also equipped with a mini printer for printing experimental data at any time. A standard RS232 data communication interface is used for convenient data export and external connections. Multiple test modes can be configured to test the performance of various sealing products.

[0046] Control button 230 includes a backflush button, which is used to open the pressure relief valve. When the vacuum pressure is relatively high during the test, the vacuum pressure is not completely released within the built-in pressure relief time of the program. At this time, as long as the backflush button is pressed, the system will open the pressure relief valve to release pressure for 5 seconds and then automatically close it to release the pressure in the system.

[0047] The working principle of the packaging bag sealing performance tester in this application embodiment is as follows:

[0048] Connect the instrument tubing, add approximately three-quarters of the volume of purified water into the vacuum chamber 100, place the test sample into the vacuum chamber 100, and then add a small amount of water to the sealing part of the vacuum chamber 100 to keep the entire sealing part in a water-sealed state, making it easier for the vacuum chamber 100 to achieve a sealing effect. Then place the sample into the vacuum chamber 100, close the cover plate 120, and press the test sample below the water surface with the pressure plate 130.

[0049] Pressing the handle 330 causes the vibrator 310 to descend via the connecting rod 320. The vibrator 310 then pushes the test sample downwards. Releasing the handle 330 causes the spring 340 to push the handle 330 upwards, and the test sample pushes the vibrator 310 upwards. During the descent and ascent of the test sample, air bubbles adhering to the surface of the test sample can be shaken off.

[0050] Power on the instrument, select single mode, set the pressure, holding time and other parameters, click test to start the test, start vacuuming, after the set pressure is reached, the timer starts timing, observe whether the packaged sample in the vacuum barrel 100 has bubbles coming out, to determine its sealing performance, the test ends after the set holding time is reached, and you can enter whether the test result is qualified.

[0051] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," 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.

[0052] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A package seal performance tester characterized by, The utility model relates to a vacuum packaging device, including: a vacuum barrel, the vacuum barrel includes a barrel body and a cover plate, the barrel body has a containing cavity with an open upper end, the cover plate is openable to the open end of the containing cavity, the cover plate is provided with a pressing plate, the pressing plate extends into the containing cavity, the cover plate is provided with a suction interface communicating with the containing cavity, and the barrel body is transparent; a vacuum machine, the vacuum machine is provided with a vacuum interface, the vacuum interface is communicated with the suction interface through a suction pipe, and the vacuum machine is used for vacuumizing the vacuum barrel; a vibrating assembly is movably connected with the cover plate, one end of the vibrating assembly extends into the containing cavity, and the vibrating assembly is used for driving the packaging bag to shake to shake off the bubbles adhered to the surface of the packaging bag.

2. The packaging bag sealing performance tester according to claim 1, characterized in that, The vibrating assembly includes a vibrating piece, a connecting rod and a handle, the vibrating piece and the handle are connected at two ends of the connecting rod respectively, the cover plate is provided with a first through hole for the connecting rod to pass through, the pressing plate is provided with a second through hole for the connecting rod to pass through, the vibrating piece is located below the pressing plate, and the handle drives the vibrating piece to move through the connecting rod to drive the packaging bag to shake.

3. The packaging bag sealing performance tester according to claim 2, characterized in that, The first through hole is provided with a sealing groove, and the sealing groove is provided with a sealing ring, and the sealing ring is sleeved on the connecting rod.

4. The packaging bag sealing performance tester according to claim 2, wherein The handle is spaced apart from the cover plate, and the connecting rod is slidably arranged in the first through hole and the second through hole.

5. The packaging bag seal performance tester according to claim 4, wherein A spring is arranged between the handle and the cover plate.

6. The packaging bag seal performance tester according to claim 2, wherein The vibrating piece is disc-shaped, and a plurality of third through holes are arranged on the vibrating piece.

7. The packaging bag seal performance tester according to claim 6, wherein The plate surface of the vibrating piece is inclined to the axis of the connecting rod, and the handle drives the vibrating piece to rotate through the connecting rod to drive the packaging bag to shake.

8. The packaging bag seal performance tester according to claim 1, wherein The pressing plate is connected below the cover plate through a pressing rod, and a plurality of fourth through holes are arranged on the pressing plate.

9. The packaging bag seal performance tester according to claim 1, wherein The vacuum machine is provided with a pressure regulating valve for adjusting the air inlet pressure and a speed regulating valve for adjusting the vacuumizing speed.

10. The packaging bag seal performance tester according to claim 1, wherein The vacuum machine is provided with a display screen and control buttons.

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