Food packaging bag quality detection structure

Abstract

The utility model discloses a food packaging bag quality detection structure belongs to packaging bag quality detection technical field, and its technical scheme main points include bottom plate, the left side of bottom plate top is provided with leakage detection mechanism, the right side of bottom plate top is provided with bearing detection mechanism, both sides of bottom plate top are all provided with fixed plate, and the top and bottom of opposite side of two fixed plates are all provided with clamping plate, the leakage detection mechanism includes hygrochromic test paper, transparent acrylic box and two ears, the hygrochromic test paper sets up in the inside of transparent acrylic box, and the side of transparent acrylic box is close to the ear and is fixedly connected with transparent acrylic box, has solved the structure of part to food packaging bag and carries out bearing detection inconvenient pressure control of existing, and after bearing detection, it is inconvenient to judge whether food packaging bag exists leakage, and the problem of inconvenient accurate judgment food packaging bag's bearing capacity.

Description

Technical Field

[0001] This utility model relates to the field of packaging bag quality inspection technology, and in particular to a structure for inspecting the quality of food packaging bags. Background Technology

[0002] Food packaging bag quality inspection involves a comprehensive verification of the safety, practicality, and durability of the packaging bags to ensure that they meet food storage requirements. Weighing performance and sealing performance are part of the food packaging bag quality inspection.

[0003] Existing plastic packaging bags are usually packaged and sold directly after production, lacking a step to test their load-bearing capacity, or relying on manual inspection. This leads to unreliable quality inspection of packaging bags and increases the risk of packaging bag breakage. The existing patent (publication number: CN219417070U) discloses a plastic packaging bag quality inspection device, which solves the problem that the lack of a step to test the load-bearing capacity of plastic packaging bags after production, or the use of manual inspection, leads to unreliable quality inspection of packaging bags and increases the risk of packaging bag damage.

[0004] To address the aforementioned issues, existing patents have provided solutions. However, some existing structures for load-bearing testing of food packaging bags are inconvenient for pressure control and for determining whether the food packaging bag is leaking after load-bearing testing, making it difficult to accurately assess the load-bearing performance of the food packaging bag.

[0005] Therefore, a quality inspection structure for food packaging bags is proposed. Utility Model Content

[0006] The purpose of this utility model is to provide a quality inspection structure for food packaging bags, which can solve the problems of existing structures for load-bearing testing of food packaging bags being inconvenient to control pressure, and inconvenient to determine whether the food packaging bag is leaking after load-bearing testing, and inconvenient to accurately determine the load-bearing performance of the food packaging bag.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a quality inspection structure for food packaging bags, including a bottom plate, a leakage detection mechanism provided on the left side of the top of the bottom plate, a load-bearing detection mechanism provided on the right side of the top of the bottom plate, and fixing plates provided on both sides of the top of the bottom plate, with clamping plates provided on the top and bottom of the opposite side of the two fixing plates. The leak detection mechanism includes a moisture-sensitive test strip, a transparent acrylic box, and two hanging ears. The moisture-sensitive test strip is placed inside the transparent acrylic box. The hanging ears are fixedly connected to the transparent acrylic box on the side closest to the transparent acrylic box. The bottom of the transparent acrylic box is fixedly connected to the top of the base plate.

[0008] Preferably, the load-bearing detection mechanism includes a fixed frame, an electric telescopic rod, a pressure sensor, and a pressure block. The bottom of the fixed frame is fixedly connected to the top of the base plate, the top of the electric telescopic rod is fixedly connected to the surface of the fixed frame, the top of the pressure sensor is fixedly connected to the bottom of the telescopic end of the electric telescopic rod, and the top of the pressure block is fixedly connected to the bottom of the pressure sensor.

[0009] Preferably, the bottom clamping plate is fixedly connected to the fixed plate on the side closest to the fixed plate, and the top clamping plate is in movable contact with the fixed plate on the side closest to the fixed plate. Several rubber strips are fixedly connected to the opposite sides of the two fixed plates.

[0010] Preferably, a fixing block is fixedly connected to the top of each of the two fixing plates on opposite sides, and a rotating rod is threaded inside the fixing block. The bottom of the rotating rod is rotatably connected to the surface of the top clamping plate.

[0011] Preferably, the front and rear sides of the fixed plate are fixedly connected to sliders, the front and rear sides of the top of the base plate are fixedly connected to slide rails, the sliders are slidably connected inside the slide rails, and the bottom of the fixed plate is in movable contact with the top of the base plate.

[0012] Preferably, an adjusting rod is provided on the right side of the top of the base plate. The adjusting rod is threaded into the inside of the fixed plate, and the threads on the surface of the adjusting rod are arranged in opposite directions.

[0013] Preferably, a plurality of screw posts are fixedly connected to the surface of the adjusting rod, and a support block is rotatably connected to the left side of the adjusting rod, with the bottom of the support block fixedly connected to the top of the base plate.

[0014] Preferably, a water injection pipe is provided on the left side of the top of the transparent acrylic box, and a water extraction pipe is provided on the right side of the top of the transparent acrylic box, with a rubber hose fixedly connected to the bottom of the water extraction pipe.

[0015] Preferably, both the water injection pipe and the water extraction pipe are fixedly fitted with brackets, and the bottom of the brackets is fixedly connected to the top of the base plate.

[0016] Preferably, the bottom of the base plate is fixedly connected to a support block, and the support block is a plurality of blocks symmetrically distributed on the bottom of the base plate.

[0017] Compared with the prior art, the beneficial effects of this utility model are: 1. This application incorporates a leak detection mechanism. The water injection pipe can be connected to an external water source to inject water into the food packaging bag. The water extraction pipe works in conjunction with a rubber hose to facilitate drainage. The deformation characteristics of the rubber hose also make it easy for the food packaging bag to fit into the transparent acrylic box. The hanging ears limit the handle of the food packaging bag. The water injection pipe and the water extraction pipe are fixed to the base plate by a bracket to ensure installation stability. The transparent acrylic box design allows staff to directly observe the color change of the internal moisture-sensitive test paper to quickly determine whether the food packaging bag is leaking. After detection, water is extracted through the water extraction pipe to treat the water accumulated inside the transparent acrylic box. The inner wall of the transparent acrylic box is then dried, and the moisture-sensitive test paper can be replaced for reuse. The symmetrically distributed support blocks at the bottom of the base plate ensure detection stability, achieving accurate and efficient detection of leaks. 2. This application establishes a load-bearing testing mechanism. The fixed frame, fixed to the base plate, provides stable support for the entire mechanism. Powered by an external power supply and controlled by an external controller, the electric telescopic rod can precisely move the pressure block downwards, applying pressure to the food packaging bag after it has been clamped by the clamping plate and taut by the adjusting rod. The pressure sensor can detect the pressure data in real time and transmit it to the external display terminal for easy recording and viewing by staff. At the same time, the controller can adjust the descent position of the telescopic rod to achieve precise pressure control, effectively ensuring the quantification and accuracy of the load-bearing performance testing of the food packaging bag. Attached Figure Description

[0018] Figure 1 This is an overall structural diagram of the food packaging bag quality inspection structure of this utility model; Figure 2 This is a three-dimensional exploded view of the transparent acrylic box and the humidity-sensitive test paper in this utility model; Figure 3 This is a three-dimensional connection diagram of the load-bearing detection mechanism in this utility model; Figure 4 This is a three-dimensional connection diagram of the fixing plate and the fixing block in this utility model; Figure 5 This is a three-dimensional connection diagram of the adjusting rod and the screw rod in this utility model.

[0019] In the diagram: 1. Base plate; 2. Leak detection mechanism; 201. Moisture-sensitive test paper; 202. Transparent acrylic box; 203. Hanging ear; 3. Support block; 4. Rubber hose; 5. Water injection pipe; 6. Bracket; 7. Water extraction pipe; 8. Load-bearing detection mechanism; 801. Fixing frame; 802. Electric telescopic rod; 803. Pressure sensor; 804. Pressure block; 9. Clamping plate; 10. Adjusting rod; 11. Rotating rod; 12. Fixing block; 13. Fixing plate; 14. Sliding block; 15. Support block; 16. Tightening column; 17. Slide rail; 18. Rubber strip. Detailed Implementation

[0020] 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 protection scope of the present utility model.

[0021] Please see Figure 1-5 The present invention provides the following technical solution: A quality inspection structure for food packaging bags includes a base plate 1, a leakage detection mechanism 2 is provided on the left side of the top of the base plate 1, a load-bearing detection mechanism 8 is provided on the right side of the top of the base plate 1, and fixing plates 13 are provided on both sides of the top of the base plate 1. Clamping plates 9 are provided on the top and bottom of the opposite side of the two fixing plates 13. The leak detection mechanism 2 includes a moisture-sensitive test strip 201, a transparent acrylic box 202, and two hanging ears 203. The moisture-sensitive test strip 201 is placed inside the transparent acrylic box 202. The hanging ears 203 are fixedly connected to the transparent acrylic box 202 on the side closest to the transparent acrylic box 202. The bottom of the transparent acrylic box 202 is fixedly connected to the top of the base plate 1.

[0022] In this embodiment: the food packaging bag to be tested is placed between the clamping plates 9 of the fixing plates 13 on both sides of the base plate 1. The bottom clamping plate 9 provides support. Rotating the rotating rod 11 on the fixing block 12 causes the top clamping plate 9 to move down and clamp the food packaging bag. The rubber strip 18 increases friction to prevent the food packaging bag from slipping. Rotating the adjusting rod 10 with opposite threads, guided by the slider 14 and the slide rail 17, causes the two fixing plates 13 to move in opposite directions to straighten the food packaging bag. Power is supplied to the load-bearing detection mechanism 8 through an external power supply. The electric telescopic rod 802 supported by the fixing frame 801 is lowered by the controller, driving the pressure block 804 to apply pressure. The pressure sensor 803 transmits data to the peripheral display terminal through an external connection line. The travel of the telescopic end of the electric telescopic rod 802 is pressure-controlled. After testing, the clamp 9 is released to remove the packaging bag, which is then placed into the transparent acrylic box 202. An external water source is connected to the water injection pipe 5 to inject water. The humidity-sensitive test paper 201 is observed through the transparent acrylic box 202. If the paper changes color, it indicates that the food packaging bag has a leakage problem. The food packaging bag corresponding to the current load-bearing test is judged to be unqualified. Then, the water inside the food packaging bag is extracted through the water injection pipe 7 using an external water pumping device. This solves the problems of existing structures for load-bearing testing of food packaging bags, which are inconvenient to control pressure and inconvenient to determine whether the food packaging bag has leakage after load-bearing testing, and are inconvenient to accurately determine the load-bearing performance of the food packaging bag.

[0023] Specifically, such as Figure 3As shown, the load-bearing detection mechanism 8 includes a fixed frame 801, an electric telescopic rod 802, a pressure sensor 803, and a pressure block 804. The bottom of the fixed frame 801 is fixedly connected to the top of the base plate 1, the top of the electric telescopic rod 802 is fixedly connected to the surface of the fixed frame 801, the top of the pressure sensor 803 is fixedly connected to the bottom of the telescopic end of the electric telescopic rod 802, and the top of the pressure block 804 is fixedly connected to the bottom of the pressure sensor 803.

[0024] Specifically, such as Figure 4 As shown, the bottom clamping plate 9 is fixedly connected to the fixing plate 13 on the side closest to the fixing plate 13, and the top clamping plate 9 is in movable contact with the fixing plate 13 on the side closest to the fixing plate 13. Several rubber strips 18 are fixedly connected to the opposite sides of the two fixing plates 13.

[0025] Specifically, such as Figure 4 As shown, a fixing block 12 is fixedly connected to the top of each of the two fixing plates 13 on opposite sides. A rotating rod 11 is threadedly connected to the inside of the fixing block 12. The bottom of the rotating rod 11 is rotatably connected to the surface of the top clamping plate 9.

[0026] In this embodiment: the load-bearing detection mechanism 8, through the cooperation of the fixed frame 801, the electric telescopic rod 802, the pressure sensor 803 and the pressure block 804, can accurately apply pressure and provide real-time data feedback, thereby realizing quantitative detection of load-bearing performance. The bottom clamping plate 9 is fixed, and the top clamping plate 9, together with the rotating rod 11 and the fixing block 12, can flexibly clamp the food packaging bag. The rubber strip 18 increases friction and avoids clamping damage and slippage.

[0027] Specifically, such as Figure 1 and Figure 4 As shown, sliders 14 are fixedly connected to the front and rear sides of the fixed plate 13, and slide rails 17 are fixedly connected to the front and rear sides of the top of the base plate 1. The sliders 14 are slidably connected inside the slide rails 17, and the bottom of the fixed plate 13 is in contact with the top of the base plate 1.

[0028] Specifically, such as Figure 1 As shown, an adjusting rod 10 is provided on the right side of the top of the base plate 1. The adjusting rod 10 is threaded into the inside of the fixed plate 13, and the threads on the surface of the adjusting rod 10 are arranged in opposite directions.

[0029] Specifically, such as Figure 5 As shown, several screw posts 16 are fixedly connected to the surface of the adjusting rod 10, and a support block 15 is rotatably connected to the left side of the adjusting rod 10. The bottom of the support block 15 is fixedly connected to the top of the base plate 1.

[0030] In this embodiment: the slider 14 and the slide rail 17 cooperate to provide stable guidance for the movement of the fixed plate 13. The adjusting rod 10 with opposite threads, together with the screw column 16 and the support block 15, can easily drive the two fixed plates 13 to move synchronously in opposite directions, quickly straighten the food packaging bag, and ensure the accuracy of the test.

[0031] Specifically, such as Figure 1 As shown, a water injection pipe 5 is provided on the left side of the top of the transparent acrylic box 202, and a water extraction pipe 7 is provided on the right side of the top of the transparent acrylic box 202. A rubber hose 4 is fixedly connected to the bottom of the water extraction pipe 7.

[0032] Specifically, such as Figure 1 As shown, brackets 6 are fixedly fitted on the surfaces of both the water injection pipe 5 and the water extraction pipe 7, and the bottom of the brackets 6 is fixedly connected to the top of the base plate 1.

[0033] Specifically, such as Figure 1 As shown, a support block 3 is fixedly connected to the bottom of the base plate 1. There are several support blocks 3, which are symmetrically distributed at the bottom of the base plate 1.

[0034] In this embodiment: the water injection pipe 5 facilitates water injection, the water extraction pipe 7 cooperates with the rubber hose 4 to facilitate the insertion of the food packaging bag into the transparent acrylic box 202 and the drainage of water from inside the food packaging bag, the bracket 6 stably supports the water injection pipe 5 and the water extraction pipe 7, and several symmetrical support blocks 3 provide reliable support for the base plate 1.

[0035] Working principle: First, the food packaging bag to be tested is placed between the clamping plates 9 on opposite sides of the fixed plates 13 on the top of the base plate 1. The bottom clamping plate 9 is fixedly connected to the fixed plate 13 to provide stable support for clamping. The top clamping plate 9 is in movable contact with the fixed plate 13 and cooperates with the rotating rod 11 internally threadedly connected to the fixing block 12 fixedly connected to the fixed plate 13. Rotating the rotating rod 11 can drive the top clamping plate 9 to move up and down, thus achieving a firm clamping of the food packaging bag. At the same time, several rubber strips 18 fixed on opposite sides of the fixed plate 13 can increase the friction during clamping, preventing the packaging bag from slipping and protecting the bag from damage. Then, the adjusting rod 10 on the top right side of the base plate 1 is rotated. Since the surface of the adjusting rod 10 is provided with opposite threads and is threadedly connected to the inside of the fixed plate 13, at the same time... The sliders 14 fixed to the front and rear sides of the fixed plate 13 are slidably connected to the slide rails 17 fixed to the front and rear sides of the top of the base plate 1. The cooperation between the sliders 14 and the slide rails 17 provides guidance and limit for the movement of the fixed plate 13. The left side of the adjusting rod 10 is rotatably connected to the support block 15 fixed to the top of the base plate 1 to ensure rotational stability. Several screw posts 16 fixed to the surface of the adjusting rod 10 facilitate the application of force for rotation. When the adjusting rod 10 is rotated, the two fixed plates 13 will move in opposite directions, thereby straightening the clamped food packaging bag and ensuring the accuracy of subsequent testing. Then, the electric telescopic rod 802 and pressure sensor 803 in the load-bearing detection mechanism 8 are powered by an external power supply. The bottom of the fixed frame 801 of the load-bearing detection mechanism 8 is fixedly connected to the top of the base plate 1, which is powered by an external power supply. The telescopic rod 802 provides installation support. The top of the electric telescopic rod 802 is fixedly connected to the surface of the fixing frame 801. An external controller controls the telescopic end of the electric telescopic rod 802 to descend, causing the pressure block 804, which is fixedly connected to the bottom of the pressure sensor 803, to move downwards synchronously. The pressure block 804 contacts the taut food packaging bag and applies pressure for load-bearing performance testing. The pressure sensor 803 senses the pressure data in real time and transmits the data to an external display terminal via an external connection cable for intuitive display, facilitating recording and viewing by staff. The pressure can also be controlled by controlling the stroke of the telescopic end of the electric telescopic rod 802 using the external controller. After the load-bearing test is completed, the rotating rod 11 is rotated in the opposite direction to loosen the top clamp 9, allowing the food packaging bag to be removed. Then, the food... The packaging bag is inserted into the transparent acrylic housing 202 of the leakage detection mechanism 2. The bottom of the water suction pipe 7 on the top right side of the transparent acrylic housing 202 is fixedly connected to a rubber hose 4 with good deformation capacity, facilitating the food packaging bag to pass over the rubber hose 4 and be inserted into the transparent acrylic housing 202. After insertion, the handle of the food packaging bag is limited and fixed by the hanging lug 203 on the transparent acrylic housing 202 to prevent the bag from shifting during the detection process. Then, an external water source is connected to the water injection pipe 5 on the top left side of the transparent acrylic housing 202. Supports 6 are fixedly fitted onto the surfaces of both the water injection pipe 5 and the water suction pipe 7. The bottom of the support 6 is fixedly connected to the top of the base plate 1 to ensure the installation stability of the water injection pipe 5 and the water suction pipe 7. Water is injected into the food packaging bag through the water injection pipe 5.Staff can directly observe the color change of the moisture-sensitive test strip 201 inside the transparent acrylic box 202. If any point on the moisture-sensitive test strip 201 shows a color change, it indicates a leak in the food packaging bag. The food packaging bag corresponding to the current load-bearing test is deemed unqualified. After the leak test is completed, the external water pumping device is connected to the water pumping pipe 7. The water inside the food packaging bag is extracted through the water pumping pipe 7 and the rubber hose 4. Then, the food packaging bag and the moisture-sensitive test strip 201 are removed. If there is residual water inside the transparent acrylic box 202, it needs to be dried before inserting a new moisture-sensitive test strip 201 to carry out the next leak test. The bottom of the base plate 1 is fixed. Several symmetrically distributed support blocks 3 provide stable support for the entire testing structure, ensuring that the base plate 1 does not shake during the testing process, thus guaranteeing the reliability of the test data. This solves the problems of existing structures for load-bearing testing of food packaging bags, which are inconvenient for pressure control and for determining whether the food packaging bag is leaking after the load-bearing test, making it difficult to accurately determine the load-bearing performance of the food packaging bag. It should be noted that the electric telescopic rod 802 and the pressure sensor 803 are both existing and mature technologies that have been published. Furthermore, any content not described in detail in this specification is prior art known to those skilled in the art, and its basic mechanisms will not be elaborated here.

[0036] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A quality inspection structure for food packaging bags, comprising a base plate (1), characterized in that: A leakage detection mechanism (2) is provided on the left side of the top of the base plate (1), a load-bearing detection mechanism (8) is provided on the right side of the top of the base plate (1), and a fixing plate (13) is provided on both sides of the top of the base plate (1). A clamping plate (9) is provided on the top and bottom of the opposite side of the two fixing plates (13). The leakage detection mechanism (2) includes a moisture-sensitive test paper (201), a transparent acrylic box (202), and two hanging ears (203). The moisture-sensitive test paper (201) is placed inside the transparent acrylic box (202). The hanging ears (203) are fixedly connected to the transparent acrylic box (202) on the side near the transparent acrylic box (202). The bottom of the transparent acrylic box (202) is fixedly connected to the top of the base plate (1).

2. The food packaging bag quality inspection structure according to claim 1, characterized in that: The load-bearing detection mechanism (8) includes a fixed frame (801), an electric telescopic rod (802), a pressure sensor (803), and a pressure block (804). The bottom of the fixed frame (801) is fixedly connected to the top of the base plate (1), the top of the electric telescopic rod (802) is fixedly connected to the surface of the fixed frame (801), the top of the pressure sensor (803) is fixedly connected to the bottom of the telescopic end of the electric telescopic rod (802), and the top of the pressure block (804) is fixedly connected to the bottom of the pressure sensor (803).

3. The food packaging bag quality inspection structure according to claim 1, characterized in that: The bottom clamp (9) is fixedly connected to the fixed plate (13) on the side closest to the fixed plate (13), and the top clamp (9) is in contact with the fixed plate (13) on the side closest to the fixed plate (13). Several rubber strips (18) are fixedly connected to the opposite sides of the two fixed plates (13).

4. The food packaging bag quality inspection structure according to claim 1, characterized in that: Two fixing plates (13) are fixedly connected to the top of opposite sides by fixing blocks (12), and the fixing blocks (12) are internally threaded with rotating rods (11), and the bottom of the rotating rods (11) is rotatably connected to the surface of the top clamping plate (9).

5. The food packaging bag quality inspection structure according to claim 1, characterized in that: The front and rear sides of the fixed plate (13) are fixedly connected to sliders (14), the front and rear sides of the top of the base plate (1) are fixedly connected to slide rails (17), the sliders (14) are slidably connected inside the slide rails (17), and the bottom of the fixed plate (13) is in contact with the top of the base plate (1).

6. The food packaging bag quality inspection structure according to claim 1, characterized in that: An adjusting rod (10) is provided on the right side of the top of the base plate (1). The adjusting rod (10) is threaded inside the fixed plate (13), and the threads on the surface of the adjusting rod (10) are arranged in opposite directions.

7. The food packaging bag quality inspection structure according to claim 6, characterized in that: The surface of the adjusting rod (10) is fixedly connected with several screws (16), and the left side of the adjusting rod (10) is rotatably connected with a support block (15). The bottom of the support block (15) is fixedly connected to the top of the base plate (1).

8. The food packaging bag quality inspection structure according to claim 1, characterized in that: A water injection pipe (5) is provided on the left side of the top of the transparent acrylic box (202), and a water suction pipe (7) is provided on the right side of the top of the transparent acrylic box (202). A rubber hose (4) is fixedly connected to the bottom of the water suction pipe (7).

9. The food packaging bag quality inspection structure according to claim 8, characterized in that: The surfaces of the water injection pipe (5) and the water extraction pipe (7) are both fixedly fitted with brackets (6), and the bottom of the brackets (6) is fixedly connected to the top of the base plate (1).

10. The food packaging bag quality inspection structure according to claim 1, characterized in that: The bottom of the base plate (1) is fixedly connected to a support block (3), and the support block (3) is a number of blocks and is symmetrically distributed at the bottom of the base plate (1).

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