A spout bag detection apparatus

Abstract

The application relates to the technical field of sealing detection equipment, in particular to a suction nozzle bag detection equipment which comprises a sealing tester body, a fixing rod is arranged on the sealing cover of the sealing tester body, a rotatable movable frame is rotatably connected to the fixing rod in the test tank, an installation plate is arranged at the end of the movable frame away from the fixing rod, a plurality of upper limiting rods for limiting the height of the suction nozzle bag are arranged on the installation plate, a fixing block is arranged in the test tank, a limiting groove for limiting the position of the cover of the suction nozzle bag is arranged on the fixing block, and a plurality of lower limiting rods for limiting the position of the bottom of the suction nozzle bag are arranged on the movable frame opposite to the limiting groove. Therefore, the suction nozzle bag can be automatically and accurately positioned without interfering with the detection accuracy, the suction nozzle bag can be effectively prevented from freely floating in water, and an operator can conveniently observe the key sealing position of the suction nozzle bag.

Description

Technical Field

[0001] This invention relates to the field of sealing test equipment technology, and more particularly to a spout bag test equipment. Background Technology

[0002] Spout pouches, as a common form of flexible packaging, are widely used in the food, beverage, daily chemical, and pharmaceutical industries. Their sealing performance is a key indicator for ensuring the quality of the contents and preventing leakage and contamination. The most common and reliable method in the industry for testing the sealing performance of spout pouches is the negative pressure method (also known as the vacuum decay method, which involves immersing the sample in a transparent vacuum container filled with water, sealing it, drawing a vacuum, and observing whether continuous bubbles are generated to determine whether there is a leak).

[0003] Currently, existing testing equipment, such as Chinese patent publication number CN213274725U, discloses a food packaging bag sealing tester, which includes a transparent water bucket containing testing water. The upper surface of the transparent water bucket has a sealing cap with a handle on its upper surface. The inner side of the sealing cap has a connecting tube, and the lower surface of the sealing cap has a connecting rod with a pressure plate on its lower surface. The lower surface of the pressure plate has a packaging bag with a through hole, and the inner side of the transparent water bucket has a groove with a sealing gasket on its inner side. The transparent water bucket is fixed above the tester by a fixing baffle, allowing it to be placed stably. However, during actual testing, the spout bags, due to their own buoyancy and residual air inside, will float freely, rotate, or stack on each other in the water. This makes it difficult to stably expose key sealing parts (such as the spout welding point and the four sides of the bag seal) to the operator's field of vision, making it difficult to observe air bubbles.

[0004] How to achieve automatic and precise positioning of the nozzle bag without interfering with the accuracy of the test, effectively prevent the nozzle bag from floating freely in the water, and facilitate the operator's observation of the key sealing parts of the nozzle bag, has become a technical problem that needs to be solved.

[0005] In conclusion, the existing technology obviously has inconveniences and defects in practical use, so it is necessary to improve it. Summary of the Invention

[0006] To address the aforementioned shortcomings, the present invention aims to provide a spout bag inspection device that can automatically and accurately position spout bags without interfering with inspection accuracy, effectively preventing spout bags from floating freely in water, and facilitating operators to observe the key sealing parts of the spout bags.

[0007] To achieve the above objectives, the present invention provides a spout bag testing device, including a sealing tester body. A fixing rod is provided on the sealing cover of the sealing tester body. A rotatable movable frame is rotatably connected to the fixing rod inside the test tank. An installation plate is provided at the end of the movable frame away from the fixing rod. A plurality of upper limit rods for limiting the height of the spout bag are provided on the installation plate.

[0008] The test container is equipped with a fixing block, which has a limiting groove for limiting the position of the mouthpiece bag lid. The movable frame opposite the limiting groove is equipped with several lower limiting rods for limiting the position of the bottom of the mouthpiece bag.

[0009] By inserting the lower limit rod into the recess at the bottom of the mouthpiece bag, the end of the mouthpiece bag cap away from the lower limit rod is inserted into the limiting groove, thus confining the mouthpiece bag within a space. By rotating the movable frame, the contact position between the upper limit rod, the lower limit rod, and the mouthpiece bag can be changed.

[0010] According to the spout bag testing device of the present invention, a fixed box is provided on the outer wall of the test can, an installation block is slidably provided in the fixed box, a driving block is provided at one end of the installation block near the test can, a mating block that attracts the driving block is provided in the movable frame, a pull rod is provided at one end of the installation block away from the driving block, and the end of the pull rod away from the installation block extends out of the fixed box.

[0011] According to the spout bag detection device of the present invention, the pull rod is elastically connected to the mounting block, and one end of the pull rod extending out of the fixing box is connected to the locking block, the locking block abutting against the fixing box.

[0012] According to the spout bag detection device of the present invention, one end of the pull rod near the mounting block is inserted into the mounting block, a positioning rod is provided inside the mounting block, the pull rod is sleeved outside the positioning rod, inserts are symmetrically provided on the pull rod, slots that cooperate with the inserts are symmetrically provided on the positioning rod, the inserts are all slidably disposed in the slots, and elastic elements are provided between the inserts and the slots.

[0013] In the spout bag detection device according to the present invention, the elastic element is a spring.

[0014] According to the spout bag detection device of the present invention, the driving block and the mating block are magnets that cooperate with each other.

[0015] According to the spout bag testing device of the present invention, the movable frame is an L-shaped bent plate structure, including a horizontal plate and a vertical plate, the horizontal plate is connected to a fixing rod, and the end of the vertical plate near the test tank abuts against the inner wall of the test tank.

[0016] According to the spout bag detection device of the present invention, both the upper limit rod and the lower limit rod are rod-shaped structures, and both the upper limit rod and the lower limit rod are threadedly connected to the mounting plate.

[0017] The purpose of this invention is to provide a spout bag testing device, including a movable frame. An upper limit rod on the movable frame limits the height of the spout bag, while a limiting groove and a lower limit rod limit the horizontal distance of the spout bag. This allows for automatic and precise positioning of the spout bag without interfering with testing accuracy. The upper and lower limit rods work together to confine the spout bag within a space, preventing it from detaching but still allowing for some movement. During testing, the spout bag remains in a nearly horizontal position below the liquid surface in the testing tank, effectively preventing it from floating freely and facilitating observation of key sealing areas by the operator. Slowly rotating the movable frame rotates the upper and lower limit rods, changing the contact points between them and the spout bag, avoiding obstruction of part of the bag body, reducing blind spots, and improving testing accuracy.

[0018] In summary, the beneficial effects of this invention are: it can achieve automatic and precise positioning of the nozzle bag without interfering with the accuracy of detection, effectively prevent the nozzle bag from floating freely in water, and facilitate operators to observe the key sealing parts of the nozzle bag. Attached Figure Description

[0019] Figure 1 This is a structural diagram of the present invention;

[0020] Figure 2 This is a structural diagram of the test tank.

[0021] Figure 3 This is a structural diagram after the sealing cover is opened;

[0022] Figure 4 This is a structural diagram of the active frame;

[0023] Figure 5 This is a cross-sectional view of the inside of the test tank;

[0024] Figure 6 This is a cross-sectional view of the interior of the fixing box;

[0025] In the diagram: 1-Sealing tester body, 11-Test container, 111-Sealing ring, 12-Sealing cover, 2-Fixing rod, 21-Moving frame, 22-Mounting plate, 221-Upper limit rod, 23-Lower limit rod, 3-Fixing block, 31-Limiting groove, 4-Fixing box, 41-Sliding groove, 42-Drive block, 43-Mounting block, 431-Positioning rod, 44-Pull rod, 441-Locking block, 45-Elastic element. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0027] In the description of this invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and 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. Therefore, they should not be construed as limitations on this invention.

[0028] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed", "equipped", "sleeved / connected", "connected", etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this invention can be understood according to the specific circumstances.

[0029] See Figures 1-3 This invention provides a mouthpiece bag testing device, including a sealing tester body 1. The structure of the sealing tester body 1 is similar to that of the prior art, including a base, a test container 11 for holding water and samples, a sealing cap 12 on the test container 11, a connecting pipe connecting the sealing cap 12 and the base, and a sealing ring 111 (e.g., a rubber sealing ring) between the test container 11 and the sealing cap 12. The sample is immersed in the transparent test container 11 filled with water, sealed by the sealing cap 12, and then a vacuum is drawn. Leakage is determined by observing whether continuous bubbles are generated. This is a mature prior art, and its specific structure and working principle will not be described in detail here. A fixed rod 2 is provided at the top, and the fixed rod 2 is sealed with the sealing cover 12. A movable frame 21 is rotatably connected to the fixed rod 2 inside the test tank 11. The friction between the fixed rod 2 and the movable frame 21 is large. Under the premise of no external interference, the movable frame 21 will not rotate at will. The movable frame 21 is an "L"-shaped bent plate structure. The movable frame 21 abuts against the inner wall of the test tank 11 (the movable frame 21 includes a horizontal plate and a vertical plate. The horizontal plate is connected to the fixed rod 2, and the end of the vertical plate near the test tank 11 abuts against the inner wall of the test tank 11). An installation plate 22 is provided at the end of the movable frame 21 away from the fixed rod 2. Several upper limit rods 221 for limiting the height of the suction bag are provided on the installation plate 22.

[0030] See Figures 1-3Preferably, a number of upper limit rods 221 are evenly arranged in a straight line, and all upper limit rods 221 are threaded to the mounting plate 22. By adjusting the height of each upper limit rod 221 individually, it can better adapt to the surface undulations of the mouthpiece bag.

[0031] See Figures 1-5 The test container 11 contains a fixing block 3, which has a limiting groove 31 for limiting the position of the spout bag lid. The movable frame 21, directly opposite the limiting groove 31, has several lower limiting rods 23 for limiting the position of the bottom of the spout bag. The lower limiting rods 23 extend into the recess at the bottom of the spout bag. (The spout bag's self-standing function is a key design feature, often called "accordion pleats" or "self-standing pleats." These are two inwardly recessed creases formed at the bottom of the bag through heat pressing. When the bag is empty, these creases fold inward, allowing the bag to sit stably on a flat surface. When filled with contents, the internal pressure causes it to expand outward, forming a complete square or diamond-shaped bottom. This is a mature existing technology.) (The technique will not be elaborated here) Insert the end of the mouthpiece bag cap away from the lower limit rod 23 into the limiting groove 31 (without obstructing the seal between the mouthpiece and the cap), thus confining the mouthpiece bag within a space. Although the mouthpiece bag cannot leave this space, it still has some room to move. By rotating the movable frame 21, the movable frame 21 drives the upper limit rod 221 and the lower limit rod 23 to rotate. Only a small angle needs to be rotated. In this way, the mouthpiece bag cap will not leave the limiting groove 31, and the contact position between the upper limit rod 221, the lower limit rod 23 and the mouthpiece bag can be moved to prevent the upper limit rod 221 and the lower limit rod 23 from obstructing the operator's observation of the bubbles.

[0032] See Figures 1-5 Preferably, both the upper limit rod 221 and the lower limit rod 23 are rod-shaped structures, and both the upper limit rod 221 and the lower limit rod 23 are threaded to the mounting plate 22. By adjusting the distance between the upper limit rod 221 and the lower limit rod 23 extending into the mounting plate 22, the concavity at the bottom of the nozzle bag can be better accommodated.

[0033] See Figures 1-6Furthermore, a fixed box 4 is provided on the outer wall of the test tank 11, and an installation block 43 is slidably provided inside the fixed box 4. A driving block 42 is provided at the end of the installation block 43 near the test tank 11. A mating block that attracts the driving block 42 is provided inside the movable frame 21. By rotating the driving block 42 around the axis of the test tank 11 (sliding the driving block 42 against the outer wall of the test tank 11), the driving block 42 drives the mating block to move, thereby driving the movable frame 21 to rotate and providing power to the movable frame 21. A pull rod 44 is provided at the end of the installation block 43 away from the driving block 42. The end of the pull rod 44 away from the installation block 43 extends out of the fixed box 4. The fixed box 4 is provided with a groove 41 that allows the pull rod 44 to rotate around the axis of the test tank 11. By rotating the pull rod 44, the installation block 43 can be driven to rotate, thereby driving the driving block 42 to slide against the outer wall of the test tank 11.

[0034] See Figures 1-6 Preferably, both the drive block 42 and the mating block are magnets. To facilitate the operator's observation of the bubbles, the structures of the aforementioned movable frame 21, upper limit rod 221, lower limit rod 23, and fixed block 3 are the same as those of the test tank 11 and sealing cap 12, and are all made of transparent acrylic material. Those skilled in the art can reasonably select the models of the drive block 42 and the mating block according to the actual situation, ensuring that there is sufficient attraction between the drive block 42 and the mating block. The method of using magnets to attract each other to provide power is a mature existing technology and will not be described in detail here.

[0035] See Figures 1-6 Preferably, the pull rod 44 is elastically connected to the mounting block 43 (one end of the pull rod 44 near the mounting block 43 is inserted into the mounting block 43, the mounting block 43 is provided with a positioning rod 431, the pull rod 44 is sleeved on the outside of the positioning rod 431, the pull rod 44 is symmetrically provided with inserts, the positioning rod 431 is symmetrically provided with slots that cooperate with the inserts, the inserts are all slidably set in the slots, and there is an elastic element 45 between the inserts and the slots). One end of the pull rod 44 that protrudes from the fixing box 4 is connected to the locking block 441, and the locking block 441 abuts against the fixing box 4. By pulling the locking block 441, the locking block 441 drives the pull rod 44 to move. Since the locking block 441 no longer abuts against the fixing box 4, by moving the locking block 441, the pull rod 44 rotates, which in turn drives the mounting block 43 to rotate, thereby causing the drive block 42 to slide against the outer wall of the test tank 11. The locking block 441 is released. Due to the action of the elastic element 45, the locking block 441 abuts against the fixing box 4, preventing the drive block 42 from moving at will.

[0036] See Figures 1-6 Preferably, the elastic element 45 is a spring, which provides return power.

[0037] See Figures 1-6Specifically, the spout bag consists of three main parts: the bag body, made of multiple layers of composite film, providing barrier properties, strength, and heat sealability; the spout assembly, including the spout (with threads and a liquid outlet) and the cap (with a screw cap and a sealing ring); and the sealing edge (i.e., the sealing weld), which fuses the bag body and the spout assembly together. Among these, the spout assembly and the sealing edge are the key areas for testing.

[0038] See Figures 1-6 In use, first, adjust the lengths of the upper limit rod 221 and the lower limit rod 23 according to the model of the mouthpiece bag. After filling the test tank 11 with water, first insert the lid of the mouthpiece bag into the limiting groove 31, and then cover it with the sealing cap 12, so that the movable frame 21 is directly opposite the drive block 42. After the sealing cap 12 is closed, the drive block 42 and the movable frame 21 attract and engage with each other. By rotating the drive block 42, the movable frame 21 is driven, causing the lower limit rod 23 to extend into the recess at the bottom of the mouthpiece bag (the mouthpiece bag can be slightly bent so that the lower limit rod 23 can smoothly insert into the recess after avoiding the sealing edge. Since there is a certain amount of space in the recess, the insertion...) After the suction bag is inserted, it will return to its original state. At this time, the end of the upper limit rod 221 near the suction bag will abut against the suction bag, restricting the position of the suction bag. Release the locking block 441 to prevent the drive block 42 from moving at will, and the test can begin. After a period of testing, slowly rotate the movable frame 21 (if the movement is too large, it may generate bubbles that affect the observation), which will drive the upper limit rod 221 and the lower limit rod 23 to rotate, changing the contact point between the upper limit rod 221, the lower limit rod 23 and the suction bag. Observe again for a period of time to prevent the upper limit rod 221 and the lower limit rod 23 from blocking the operation and affecting the operator's observation of bubbles.

[0039] This invention provides a spout bag testing device, including a movable frame. An upper limit rod on the movable frame limits the height of the spout bag, while a limiting groove and a lower limit rod limit the horizontal distance of the spout bag. This allows for automatic and precise positioning of the spout bag without interfering with testing accuracy. The upper and lower limit rods work together to confine the spout bag within a space, preventing it from detaching but allowing for some movement. During testing, the spout bag remains nearly horizontal, positioned below the liquid surface in the testing tank, effectively preventing it from floating freely and facilitating observation of key sealing areas by the operator. Slowly rotating the movable frame rotates the upper and lower limit rods, changing the contact points between them and the spout bag, avoiding obstruction of parts of the bag body, reducing blind spots, and improving testing accuracy. In summary, the beneficial effects of this invention are: automatic and precise positioning of the spout bag without interfering with testing accuracy, effective prevention of free floating in water, and easy observation of key sealing areas by the operator.

[0040] Of course, the present invention may have other various embodiments. Without departing from the spirit and essence of the present invention, those skilled in the art can make various corresponding changes and modifications according to the present invention, but these corresponding changes and modifications should all fall within the protection scope of the appended claims.

Claims

1. A spout bag testing device, characterized in that, The tester includes a sealing tester body, a fixed rod passing through the sealing cover of the sealing tester body, a rotatable movable frame rotatably connected to the fixed rod inside the test tank, an installation plate being provided at the end of the movable frame away from the fixed rod, and a plurality of upper limit rods for limiting the height of the mouthpiece bag passing through the installation plate. The test container is equipped with a fixing block, and the fixing block is provided with a limiting groove for limiting the position of the mouthpiece bag lid. The movable frame opposite the limiting groove is provided with several lower limiting rods for limiting the position of the bottom of the mouthpiece bag. By inserting the lower limit rod into the recess at the bottom of the mouthpiece bag, the end of the mouthpiece bag cap away from the lower limit rod is inserted into the limiting groove, thus confining the mouthpiece bag within a space. By rotating the movable frame, the contact position between the upper limit rod, the lower limit rod, and the mouthpiece bag can be changed.

2. The spout bag testing device according to claim 1, characterized in that, The outer wall of the test tank is provided with a fixing box, and an installation block is slidably provided in the fixing box. A driving block is provided at the end of the installation block near the test tank. A mating block that attracts the driving block is provided in the movable frame. A pull rod is provided at the end of the installation block away from the driving block. The end of the pull rod away from the installation block extends out of the fixing box.

3. The spout bag testing device according to claim 2, characterized in that, The pull rod is elastically connected to the mounting block, and one end of the pull rod that extends out of the fixing box is connected to the locking block, which abuts against the fixing box.

4. The spout bag testing device according to claim 3, characterized in that, The end of the pull rod near the mounting block is inserted into the mounting block. The mounting block is provided with a positioning rod. The pull rod is sleeved on the outside of the positioning rod. The pull rod is symmetrically provided with inserts. The positioning rod is symmetrically provided with slots that cooperate with the inserts. The inserts are all slidably disposed in the slots. And there is an elastic element between the inserts and the slots.

5. The spout bag testing device according to claim 4, characterized in that, The elastic element is a spring.

6. The spout bag testing device according to claim 2, characterized in that, The driving block and the mating block are magnets that cooperate with each other.

7. The spout bag testing device according to claim 1, characterized in that, The movable frame is an "L"-shaped bent plate structure, including a horizontal plate and a vertical plate. The horizontal plate is connected to a fixing rod, and the end of the vertical plate near the test tank abuts against the inner wall of the test tank.

8. The spout bag testing device according to claim 1, characterized in that, Both the upper limit rod and the lower limit rod are rod-shaped structures, and both are threaded to the mounting plate.

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