Rice noodle packaging bag sealing negative pressure detection equipment

Abstract

The utility model provides rice line packaging bag sealing property negative pressure detection equipment belongs to the packaging detection technical field, including vacuum seal test appearance main part, including setting in the vacuum seal test appearance main part top's transparent container, with the sealing cover of transparent container's adhesion, adjusting mechanism includes the telescopic component for adjusting different size package, is used for the fixed limit component after telescopic component adjustment is completed. The utility model discloses through setting up the telescopic component of liftable adjustment and the limit component of detachable locking, has realized to the self -adaptation of different height rice line packaging bag compact, rotates knob to drive connecting rod along the limit groove and lifts, adjusts the leak hole board to the appropriate position and is pasted with the packaging bag surface, and the flexible buffer pressure of cooperation first spring is provided, after adjusting, through the driving clamp block clamping connecting rod of dialling dial, realizes quick positioning lock, has improved the accuracy and operating efficiency of test, effectively prevents the packaging bag and breaks down because of compacting force too big.

Description

Technical Field

[0001] This utility model belongs to the field of packaging testing technology, specifically relating to a negative pressure testing device for the sealing performance of rice noodle packaging bags. Background Technology

[0002] In the packaging and production of food products such as rice noodles, the airtightness of the packaging bag directly affects the product's shelf life and transportation safety. Currently, the negative pressure testing method is commonly used to test the sealing performance of packaging bags. This involves immersing the bag in water and applying negative pressure, observing whether air bubbles escape to determine if leakage exists. However, traditional testing equipment often uses fixed or universal pressure plate structures, which are difficult to adapt to rice noodle packaging bags of different sizes and heights. For packaging with varying heights or unevenly distributed contents, problems such as insufficient compression leading to floating or misalignment, or excessive pressure causing damage, can easily occur, affecting the accuracy of test results and operational efficiency, and failing to meet the needs of rapid testing of multiple product specifications in actual production.

[0003] In existing technologies, the clamping structure of traditional vacuum sealing testing equipment is mostly a fixed height or an integral rigid plate, which may be difficult to adapt to rice noodle packaging bags of different sizes. When the height of the packaging bags is different, it is easy to cause them to float due to insufficient clamping or to break due to excessive pressure, which affects the accuracy of testing and operational efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a negative pressure testing device for the sealing performance of rice noodle packaging bags, aiming to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: Rice noodle packaging bag sealing negative pressure testing equipment, including The vacuum sealing tester body includes a transparent container disposed above the vacuum sealing tester body and a sealing cover that fits into the transparent container; The adjustment mechanism includes a fixed sleeve fixedly installed on the outer surface of the sealing cover, a connecting rod that slides in contact with the inner surface of the fixed sleeve, a fixed piece fixedly installed at the end of the connecting rod, a telescopic component for adjusting packaging of different sizes, and a limiting component for fixing the telescopic component after adjustment.

[0006] As a preferred embodiment of this utility model, the telescopic assembly includes a limiting block fixedly connected to the outer surface of the connecting rod, a limiting groove formed on the outer surface of the fixed sleeve and slidably engaged with the limiting block, a first spring fixedly connected to the fixed plate, a perforated plate fixedly connected to the other end of the first spring, and a knob fixedly connected to the outer surface of the connecting rod.

[0007] As a preferred embodiment of this utility model, the limiting component includes positioning pins fixedly installed on both sides of the outer surface of the fixed sleeve, a clamping block rotatably connected to the outer surface of the positioning pins, a dial fixedly connected to the outer surface of the clamping block, and a second spring fixedly connected to the outer surface of the dial.

[0008] In a preferred embodiment of this utility model, the connecting rod passes through the sealing cover and is fixedly connected to the fixing piece, and a sealing ring is provided at the point where the connecting rod passes through the sealing cover.

[0009] In a preferred embodiment of this utility model, the outer surface of the limiting block slides in conjunction with the inner surface of the limiting groove, the first spring is evenly distributed in a ring on the outer surface of the fixing plate, and the outer surface of the perforated plate is in contact with the inner wall of the transparent container.

[0010] In a preferred embodiment of this utility model, the outer surface of the positioning pin is rotatably connected to the inner surface of the clamping block, and the clamping block is in contact with the surface of the connecting rod.

[0011] In a preferred embodiment of this utility model, two sets of clamping blocks and dials are symmetrically arranged, and the two ends of the second spring are respectively fixedly connected to the two sets of dials.

[0012] As a preferred embodiment of this utility model, the outer surface of the perforated plate is provided with a plurality of perforations, and the perforated plate is attached to the packaging surface.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: by setting up an adjustable telescopic component and a detachable locking limit component, adaptive compression of rice noodle packaging bags of different heights is achieved. Rotating the knob drives the connecting rod to rise and fall along the limit groove, adjusting the perforated plate to a suitable position and fitting it against the surface of the packaging bag. The first spring provides flexible buffer pressure. After adjustment, the dial is turned to drive the clamping block to clamp the connecting rod, achieving rapid positioning and locking. This improves the accuracy of testing and operational efficiency, and effectively prevents the packaging bag from being damaged due to excessive compression force. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the 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. Among them: Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a partial sectional view of the present invention from the side. Figure 3This is a schematic diagram of the internal structure of the transparent container of this utility model; Figure 4 This is a schematic diagram of the structure of the telescopic component of this utility model; Figure 5 This is a schematic diagram of the limiting component of this utility model.

[0015] In the diagram: 100, main body of the vacuum sealing tester; 101, transparent container; 102, sealing cover; 200, adjustment mechanism; 201, fixing sleeve; 202, connecting rod; 203, fixing plate; 204, telescopic assembly; 204a, limiting block; 204b, limiting groove; 204c, first spring; 204d, perforated plate; 204e, knob; 205, limiting assembly; 205a, positioning pin; 205b, clamping block; 205c, dial; 205d, second spring. Detailed Implementation

[0016] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0017] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0018] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments. Example

[0019] Reference Figures 1-5 This embodiment of the present invention provides a negative pressure testing device for the sealing performance of rice noodle packaging bags, comprising: The vacuum sealing tester body 100 includes a transparent container 101 disposed above the vacuum sealing tester body 100, and a sealing cover 102 that fits into the transparent container 101; The adjustment mechanism 200 includes a fixed sleeve 201 fixedly installed on the outer surface of the sealing cover 102, a connecting rod 202 that slides in contact with the inner surface of the fixed sleeve 201, a fixed piece 203 fixedly installed at the end of the connecting rod 202, a telescopic component 204 for adjusting packaging of different sizes, and a limiting component 205 for fixing the telescopic component 204 after adjustment.

[0020] Specifically, the telescopic assembly 204 includes a limiting block 204a fixedly connected to the outer surface of the connecting rod 202, a limiting groove 204b formed on the outer surface of the fixing sleeve 201 and slidingly engaged with the limiting block 204a, a first spring 204c fixedly connected to the fixing plate 203, a perforated plate 204d fixedly connected to the other end of the first spring 204c, and a knob 204e fixedly connected to the outer surface of the connecting rod 202.

[0021] During the testing process, the water level in the transparent container 101 is usually kept constant. When the pressing height needs to be adjusted due to different sizes of rice noodle packaging bags, the locking state of the limiting component 205 is first released, and then the knob 204e is rotated. The knob 204e drives the connecting rod 202 to rotate. Through the sliding cooperation between the limiting block 204a and the limiting groove 204b, the connecting rod 202 is guided to rise or fall axially. The movement of the connecting rod 202 drives the fixing plate 203 at its end, the first spring 204c, and the perforated plate 204d connected to the first spring 204c to move synchronously, so that the perforated plate 204d gradually fits the surface of the packaging bag to be tested, realizing adaptive pressing adjustment of packaging bags of different heights. At the same time, the buffering effect of the first spring 204c prevents the packaging bag from breaking.

[0022] Furthermore, the limiting component 205 includes a positioning pin 205a fixedly installed on both sides of the outer surface of the fixed sleeve 201, a clamping block 205b rotatably connected to the outer surface of the positioning pin 205a, a dial 205c fixedly connected to the outer surface of the clamping block 205b, and a second spring 205d fixedly connected to the outer surface of the dial 205c.

[0023] When it is necessary to release the limiting component 205 from the limiting of the connecting rod 202, press the dials 205c on both sides of the fixing sleeve 201. The dials 205c drive the clamping block 205b to rotate around the outer surface of the positioning pin 205a, and at the same time compress the second spring 205d, so that the clamping block 205b opens and disengages from the contact state with the surface of the connecting rod 202, thereby releasing the locking of the connecting rod 202 and facilitating subsequent adjustment operations.

[0024] Furthermore, the connecting rod 202 passes through the sealing cover 102 and is fixedly connected to the fixing plate 203, and a sealing ring is provided at the point where the connecting rod 202 passes through the sealing cover 102.

[0025] Furthermore, the outer surface of the limiting block 204a slides in conjunction with the inner surface of the limiting groove 204b, the first spring 204c is evenly distributed in a ring on the outer surface of the fixing plate 203, and the outer surface of the perforated plate 204d is in contact with the inner wall of the transparent container 101.

[0026] Preferably, the outer surface of the locating pin 205a is rotatably connected to the inner surface of the clamping block 205b, and the clamping block 205b is in contact with the surface of the connecting rod 202.

[0027] It should be noted that there are two sets of clamping blocks 205b and dials 205c arranged symmetrically, and the two ends of the second spring 205d are fixedly connected to the two sets of dials 205c respectively.

[0028] It should be noted that the outer surface of the perforated plate 204d is provided with multiple perforations, and the perforated plate 204d is attached to the packaging surface.

[0029] When using the product, first place the rice noodle packaging bag to be tested into the transparent container 101, and inject an appropriate amount of water into the transparent container 101 so that the packaging bag is completely submerged in the water. Then, put on the sealing cap 102, ensuring that the sealing cap 102 fits tightly with the transparent container 101 to form a sealable test chamber. Since the water level in the transparent container 101 is usually kept fixed, and the height of rice noodle packaging bags of different specifications varies, the pressing structure needs to be adjusted for adaptability through the adjustment mechanism 200. Before adjustment, the locking state of the limiting component 205 on the connecting rod 202 must be released. The operator presses the dials 205c on both sides of the outer surface of the fixed sleeve 201. The dials 205c drive the clamping block 205b fixedly connected to it to rotate around the positioning pin 205a. During the rotation, the clamping block 205b compresses the second spring 205d, causing its inner side to open and disengage from the surface of the connecting rod 202, thereby releasing the clamping fixation on the connecting rod 202. Then, manually rotate the knob 204e. The knob 204e is fixedly connected to the outer surface of the connecting rod 202, causing the connecting rod 202 to rotate synchronously. The outer surface of the connecting rod 202 is provided with a limiting block 204a. The limiting block 204a is embedded in the limiting groove 204b opened on the outer surface of the fixed sleeve 201 and slides with its inner surface. During the rotation, it guides the connecting rod 202 to rise or fall smoothly along the axial direction. The axial movement of the connecting rod 202 drives its end fixed connection The fixed plate 203 moves synchronously. Multiple first springs 204c are evenly distributed in a ring on the outer surface of the fixed plate 203. The other end of the first spring 204c is fixedly connected to the perforation plate 204d, thereby driving the perforation plate 204d to move up and down as a whole. When the perforation plate 204d descends to fit against the surface of the packaging bag to be tested, the knob 204e is stopped from being rotated. At this time, the perforation plate 204d presses lightly on the top of the packaging bag under the action of external force to prevent it from floating or rolling due to the expansion of internal gas during the subsequent negative pressure test. The first spring 204c provides flexible buffering force in the compressed state to avoid damage to the packaging bag caused by rigid pressure, and realizes adaptive pressing of packaging bags of different heights. After the adjustment is completed, the dial 205c is released, the second spring 205d releases elastic potential energy, pushes the dial 205c to reset, and drives the clamping block 205b to re-clamp the surface of the connecting rod 202, realizing reliable locking of the adjustment position.

[0030] In summary, by setting up an adjustable telescopic component 204 and a detachable locking limiting component 205, adaptive compression of rice noodle packaging bags of different heights is achieved. Rotating the knob 204e drives the connecting rod 202 to rise and fall along the limiting groove 204b, adjusting the perforated plate 204d to a suitable position and making it fit against the surface of the packaging bag. The first spring 204c provides flexible buffer pressure. After adjustment, the dial 205c drives the clamping block 205b to clamp the connecting rod 202, achieving rapid positioning and locking. This improves the accuracy of testing and operational efficiency, and effectively prevents the packaging bag from breaking due to excessive compression force.

[0031] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0032] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0033] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0034] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A negative pressure testing device for the sealing performance of rice noodle packaging bags, characterized in that: include, The vacuum sealing tester body (100) includes a transparent container (101) disposed above the vacuum sealing tester body (100) and a sealing cap (102) that fits against the transparent container (101). The adjustment mechanism (200) includes a fixed sleeve (201) fixedly installed on the outer surface of the sealing cover (102), a connecting rod (202) that slides in contact with the inner surface of the fixed sleeve (201), a fixed piece (203) fixedly installed at the end of the connecting rod (202), a telescopic component (204) for adjusting different sizes of packaging, and a limiting component (205) for fixing the telescopic component (204) after adjustment.

2. The negative pressure testing device for the sealing performance of rice noodle packaging bags according to claim 1, characterized in that: The telescopic assembly (204) includes a limiting block (204a) fixedly connected to the outer surface of the connecting rod (202), a limiting groove (204b) formed on the outer surface of the fixed sleeve (201) and slidably engaged with the limiting block (204a), a first spring (204c) fixedly connected to the fixed plate (203), a perforated plate (204d) fixedly connected to the other end of the first spring (204c), and a knob (204e) fixedly connected to the outer surface of the connecting rod (202).

3. The negative pressure testing device for the sealing performance of rice noodle packaging bags according to claim 2, characterized in that: The limiting component (205) includes a positioning pin (205a) fixedly installed on both sides of the outer surface of the fixed sleeve (201), a clamping block (205b) rotatably connected to the outer surface of the positioning pin (205a), a dial (205c) fixedly connected to the outer surface of the clamping block (205b), and a second spring (205d) fixedly connected to the outer surface of the dial (205c).

4. The negative pressure testing device for the sealing performance of rice noodle packaging bags according to claim 3, characterized in that: The connecting rod (202) passes through the sealing cover (102) and is fixedly connected to the fixing piece (203). A sealing ring is provided at the point where the connecting rod (202) passes through the sealing cover (102).

5. The negative pressure testing device for the sealing performance of rice noodle packaging bags according to claim 4, characterized in that: The outer surface of the limiting block (204a) slides in conjunction with the inner surface of the limiting groove (204b), the first spring (204c) is evenly distributed in a ring on the outer surface of the fixing piece (203), and the outer surface of the perforated plate (204d) is in contact with the inner wall of the transparent container (101).

6. The negative pressure testing device for the sealing performance of rice noodle packaging bags according to claim 5, characterized in that: The outer surface of the positioning pin (205a) is rotatably connected to the inner surface of the clamping block (205b), and the clamping block (205b) is in contact with the surface of the connecting rod (202).

7. The negative pressure testing device for the sealing performance of rice noodle packaging bags according to claim 6, characterized in that: Two sets of clamping blocks (205b) and dials (205c) are symmetrically arranged, and the two ends of the second spring (205d) are fixedly connected to the two sets of dials (205c) respectively.

8. The negative pressure testing device for the sealing performance of rice noodle packaging bags according to claim 7, characterized in that: The outer surface of the perforated plate (204d) is provided with multiple perforations, and the perforated plate (204d) is attached to the packaging surface.

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