A food packaging seal detection device

Abstract

This utility model belongs to the field of food packaging testing technology, specifically a food packaging sealing testing device, including: a box body; a U-shaped shell fixedly installed on the top of the box body; and a testing component, which is located on the top of the U-shaped shell. An electric telescopic rod pushes the mounting plate downwards, causing a driven rod to slide on the fixed plate, allowing the pressing plate to smoothly extend and retract downwards to contact the food packaging. A sliding rod slides on the mounting plate, and a compression spring contracts, causing a pressure sensor to sense the pressing pressure. When the pressure sensor detects that the pressure reaches a set value, it transmits a signal to the controller, which then controls the electric telescopic rod to close. If the pressure sensor detects that the pressure on the food packaging remains unchanged after a period of pressing, it indicates that the food packaging has not leaked; if the pressure sensor detects fluctuations in the pressing pressure, it indicates that the food packaging has leaked. This device enables sealing testing of food packaging, improving testing efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of food packaging testing technology, specifically a food packaging sealing testing device. Background Technology

[0002] Food packaging requires a high degree of airtightness.

[0003] A search revealed a patent with publication number CN220092193U that discloses a food packaging sealing test device, including a conveyor frame and a sliding plate. The sliding plate is fixedly connected to one side of the conveyor frame, and a fixed plate is installed on the side of the conveyor frame away from the sliding plate. An L-shaped plate is fixedly connected to the upper end of the fixed plate, and a test component is installed on the fixed plate. The test component includes an airbag, an air supply pipe, a sealed cavity, and a push rod. The airbag is fixedly connected to the fixed plate, the sealed cavity is fixedly connected to the L-shaped plate, the air supply pipe is fixedly connected between the sealed cavity and the airbag, and the push rod is slidably connected to one side wall of the sealed cavity. When the pressure plate does not squeeze the food packaging, the actuating plate can rotate under the elastic force of the torsion spring and push the food packaging onto the sliding plate. The sliding plate then slides down, achieving the effect of collecting unqualified food packaging.

[0004] However, the aforementioned device cannot adjust the height of food packaging according to different heights, making it difficult to inspect larger food packaging and to quickly perform sealing inspections, thus reducing inspection efficiency. Summary of the Invention

[0005] The purpose of this invention is to provide a food packaging sealing detection device to solve the problems mentioned in the background art.

[0006] The technical solution of this utility model is as follows: A food packaging sealing detection device, comprising: a box body; and a U-shaped shell fixedly installed on the top of the box body; A conveying mechanism, disposed inside the U-shaped shell, is used for conveying food packaging; A detection component, disposed on the top of the U-shaped shell, is used for sealing detection of food packaging; An anti-tilt mechanism is provided on both sides of the U-shaped shell to assist in the anti-tilt transport of food packaging during the conveying process. The detection assembly includes a lifting mechanism, a pressing mechanism, and a detection mechanism. The detection mechanism includes two slide bars, a pressing plate, a pressure sensor, and a spring.

[0007] Preferably, the lifting mechanism includes a slide plate fixedly installed on the top of the U-shaped shell, a screw rod rotatably connected inside the slide plate, a slider slidably connected inside the slide plate, two fixed rods fixedly installed inside the slide plate, and a motor fixedly installed on the top of the slide plate. The output end of the motor extends into the interior of the slide plate and is fixedly connected to the top end of the screw rod. The slider moves through the two fixed rods and is threaded through the screw rod. The two fixed rods are located on both sides of the screw rod.

[0008] Preferably, the pressing mechanism includes a fixed plate fixedly installed on one side of the slider, an electric telescopic rod fixedly installed through the fixed plate, two driven rods that move relatively through the fixed plate, and a mounting plate connected to the bottom ends of the two driven rods. The top of the mounting plate is fixedly connected to the output end of the electric telescopic rod, and the two driven rods are located on both sides of the electric telescopic rod.

[0009] Preferably, the two sliding rods are movably connected through the mounting plate, the pressing plate is fixedly connected to the bottom end of the two sliding rods, the spring is sleeved on the outer wall of the sliding rod, the upper and lower ends of the spring are fixedly connected to the mounting plate and the pressing plate respectively, the pressure sensor is fixedly connected to the bottom of the mounting plate, the pressure sensor is fixedly connected to the top of the pressing plate, and the pressure sensor is electrically connected to the electric telescopic rod through a controller.

[0010] Preferably, the conveying mechanism includes multiple rotating rods rotatably connected inside the U-shaped shell from left to right, a conveyor belt that is tensioned and connected to the outer walls of the multiple rotating rods, double-groove synchronous pulleys that are fixedly connected to the multiple rotating rods and pass through the U-shaped shell in sequence, and a motor fixedly installed on one side of the U-shaped shell. The output end of the motor is fixedly connected to the shaft of the double-groove synchronous pulley, and the multiple double-groove synchronous pulleys are connected by a synchronous belt.

[0011] Preferably, the anti-tilt mechanism includes a hand-twisted threaded rod with threads running through both sides of the U-shaped shell, two follower rods that move relatively through both sides of the U-shaped shell, and a baffle connected to one end of the two follower rods. One end of the hand-twisted threaded rod is rotatably connected to the rear side of the baffle, and the two follower rods are located on both sides of the hand-twisted threaded rod.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: This invention uses a motor to drive a screw to rotate inside a sliding plate, while a linked slider slides on two fixed rods, thus adjusting the height of the pressing plate. This adjustment can be tailored to different heights of food packaging. An electric telescopic rod pushes the mounting plate downwards, causing a driven rod to slide on the fixed plate, smoothly extending and retracting the pressing plate until it contacts the food packaging. When the pressing plate contacts the packaging, the linked slider slides on the mounting plate, and a compression spring contracts, causing a pressure sensor to detect the pressing force. When the pressure sensor detects that the pressure has reached a set value, it transmits a signal to the controller, which then closes the electric telescopic rod. If the pressure sensor detects no change in the pressure of the food packaging after a period of time, it indicates no leakage; if the pressure sensor detects fluctuations in the pressing force, it indicates a leak. This allows for sealing detection of food packaging, improving detection efficiency. Attached Figure Description

[0013] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0014] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 This is a partial three-dimensional structural schematic diagram of the present invention; Figure 3 This is a cross-sectional perspective view of the first type of U-shaped shell of this utility model. Figure 4 This is a cross-sectional perspective view of the third-dimensional structure of the second type of U-shaped shell of this utility model; In the diagram: 1. Box body; 2. U-shaped shell; 3. Conveying mechanism; 31. Rotating rod; 32. Conveyor belt; 33. Double groove synchronous pulley; 34. Motor; 4. Detection component; 41. Lifting mechanism; 411. Slide plate; 412. Screw; 413. Slider; 414. Fixed rod; 415. Motor; 42. Pressing mechanism; 421. Fixed plate; 422. Electric telescopic rod; 423. Driven rod; 424. Mounting plate; 43. Detection mechanism; 431. Slide rod; 432. Pressing plate; 433. Pressure sensor; 434. Spring; 5. Anti-tilting mechanism; 51. Hand-twisted threaded rod; 52. Follower rod; 53. Baffle. Detailed Implementation

[0015] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0016] Example 1 Please see Figure 1 - Figure 4 A food packaging sealing detection device includes a box body 1, a U-shaped shell 2 fixedly installed on the top of the box body 1, a conveying mechanism 3, a detection component 4, and an anti-tilting mechanism 5.

[0017] The detection component 4 is located on the top of the U-shaped shell 2 and is used to perform seal detection on food packaging; The detection component 4 includes a lifting mechanism 41, a pressing mechanism 42, and a detection mechanism 43. The detection mechanism 43 includes two sliding rods 431, a pressing plate 432, a pressure sensor 433, and a spring 434. The lifting mechanism 41 includes a slide plate 411 fixedly installed on the top of the U-shaped shell 2, a screw 412 rotatably connected inside the slide plate 411, a slider 413 slidably connected inside the slide plate 411, two fixed rods 414 fixedly installed inside the slide plate 411, and a motor 415 fixedly installed on the top of the slide plate 411. The output end of the motor 415 extends into the interior of the slide plate 411 and is fixedly connected to the top of the screw 412. The slider 413 moves through the two fixed rods 414 and is threaded through the screw 412. The two fixed rods 414 are located on both sides of the screw 412. The pressing mechanism 42 includes a component fixedly installed on one side of the slider 413. The system comprises a fixed plate 421, an electric telescopic rod 422 fixedly mounted on the fixed plate 421, two driven rods 423 that are relatively movable through the fixed plate 421, and a mounting plate 424 connected to the bottom of the two driven rods 423. The top of the mounting plate 424 is fixedly connected to the output end of the electric telescopic rod 422. The two driven rods 423 are located on both sides of the electric telescopic rod 422. Two sliding rods 431 are relatively movable through the mounting plate 424. A pressing plate 432 is fixedly connected to the bottom of the two sliding rods 431. A spring 434 is sleeved on the outer wall of the sliding rod 431. The upper and lower ends of the spring 434 are fixedly connected to the mounting plate 424 and the pressing plate 432, respectively. A pressure sensor 433 is fixedly connected to the bottom of the mounting plate 424. The pressure sensor 433 is fixedly connected to the top of the pressing plate 432. The pressure sensor 433 is electrically connected to the electric telescopic rod 422 through a controller.

[0018] The technical solution provided by this utility model is as follows: In use, by starting the motor 415, the motor 415 drives the screw 412 to rotate inside the slide plate 411. The linkage slider 413 slides on the two fixed rods 414, thereby adjusting the pressing plate 432 up and down. It can be adjusted and detected according to the different heights of food packaging. When the food packaging is transported to the bottom of the pressing plate 432, the electric telescopic rod 422 is activated. The electric telescopic rod 422 pushes the mounting plate 424 downward. The linkage driven rod 423 slides on the fixed plate 421, so that the pressing plate 432 extends and retracts smoothly downward, so that the pressing plate 432 contacts the food packaging. When the pressing plate 432 contacts the food packaging, the linkage slider 431 slides on the mounting plate 424, and the compression spring 434 contracts, so that the pressure sensor 433 senses the pressing pressure, thereby detecting the pressing and sealing of the food packaging. When the pressure sensor 433 detects that the pressure reaches the set value, it transmits the signal to the controller, and the controller controls the electric telescopic rod 422 to close. If the pressure sensor 433 detects that the pressure of the food packaging does not change after being pressed for a period of time, it indicates that the food packaging has not leaked; if the pressure sensor 433 detects that the pressing pressure fluctuates, it indicates that the food packaging has leaked, thus achieving the purpose of sealing detection of the food packaging.

[0019] It should be noted that the pressure sensor 433 is a device that can sense pressure signals and convert them into usable output electrical signals according to a certain rule.

[0020] Example 2 Based on Embodiment 1, in this embodiment: the conveying mechanism 3 is located inside the U-shaped shell 2 and is used to convey food packaging. The conveying mechanism 3 includes multiple rotating rods 31 that are rotatably connected inside the U-shaped shell 2 from left to right, a conveyor belt 32 that is tensioned and connected to the outer wall of the multiple rotating rods 31, double-groove synchronous pulleys 33 that are fixedly connected to the multiple rotating rods 31 and pass through the U-shaped shell 2, and a motor 34 that is fixedly installed on one side of the U-shaped shell 2. The output end of the motor 34 is fixedly connected to the shaft of the double-groove synchronous pulley 33, and the multiple double-groove synchronous pulleys 33 are connected by a synchronous belt.

[0021] The technical solution provided in this embodiment is as follows: by starting the motor 34, the motor 34 drives the double-groove synchronous pulley 33 to rotate. Under the meshing connection of the synchronous belt, multiple rotating rods 31 rotate together inside the U-shaped shell 2, which is used to drive the conveyor belt 32 to rotate, and is used to detect the position of the food packaging.

[0022] Example 3 Based on Embodiment 1, in this embodiment: the anti-tilt mechanism 5 is set on both sides of the U-shaped shell 2 to assist in the anti-tilt conveying of food packaging during the conveying process. The anti-tilt mechanism 5 includes a hand-twisted threaded rod 51 that is threaded through both sides of the U-shaped shell 2, two follower rods 52 that are relatively movable through both sides of the U-shaped shell 2, and a baffle 53 that is connected to one end of the two follower rods 52. One end of the hand-twisted threaded rod 51 is rotatably connected to the rear side of the baffle 53, and the two follower rods 52 are located on both sides of the hand-twisted threaded rod 51.

[0023] The technical solution provided in this embodiment is as follows: by manually rotating the hand-twisted threaded rod 51, the hand-twisted threaded rod 51 moves in a threaded motion on the U-shaped shell 2, causing the baffle 53 to be pushed forward. The follower rod 52 slides on the U-shaped shell 2, causing the baffle 53 to be pushed forward stably. This is used to adjust the two sides of the conveying of food packaging of different sizes to prevent the food packaging from deviating during the conveying process.

[0024] 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, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A food packaging sealing detection device, characterized in that, include: Box body (1); U-shaped shell (2) fixedly installed on the top of the box body (1); The conveying mechanism (3) is disposed inside the U-shaped shell (2) and is used to convey food packaging. The detection component (4) is disposed on the top of the U-shaped shell (2) and is used to perform sealing detection on food packaging; Anti-tilt mechanism (5), the anti-tilt mechanism (5) is set on both sides of the U-shaped shell (2) and is used to assist in anti-tilt conveying of food packaging during the conveying process; The detection component (4) includes a lifting mechanism (41), a pressing mechanism (42) and a detection mechanism (43). The detection mechanism (43) includes two slide bars (431), a pressing plate (432), a pressure sensor (433) and a spring (434).

2. The food packaging sealing detection device according to claim 1, characterized in that, The lifting mechanism (41) includes a slide plate (411) fixedly installed on the top of the U-shaped shell (2), a screw (412) rotatably connected inside the slide plate (411), a slider (413) slidably connected inside the slide plate (411), two fixed rods (414) fixedly installed inside the slide plate (411), and a motor (415) fixedly installed on the top of the slide plate (411). The output end of the motor (415) extends into the interior of the slide plate (411) and is fixedly connected to the top of the screw (412). The slider (413) moves through the two fixed rods (414) together. The slider (413) is threaded through the screw (412). The two fixed rods (414) are located on both sides of the screw (412).

3. The food packaging sealing detection device according to claim 2, characterized in that, The pressing mechanism (42) includes a fixed plate (421) fixedly installed on one side of the slider (413), an electric telescopic rod (422) fixedly installed through the fixed plate (421), two driven rods (423) that move relatively through the fixed plate (421), and a mounting plate (424) that is connected to the bottom of the two driven rods (423). The top of the mounting plate (424) is fixedly connected to the output end of the electric telescopic rod (422), and the two driven rods (423) are located on both sides of the electric telescopic rod (422).

4. The food packaging sealing detection device according to claim 3, characterized in that, Two sliding rods (431) are movably connected to the mounting plate (424). The pressing plate (432) is fixedly connected to the bottom end of the two sliding rods (431). The spring (434) is sleeved on the outer wall of the sliding rod (431). The upper and lower ends of the spring (434) are fixedly connected to the mounting plate (424) and the pressing plate (432) respectively. The pressure sensor (433) is fixedly connected to the bottom of the mounting plate (424). The pressure sensor (433) is fixedly connected to the top of the pressing plate (432). The pressure sensor (433) is electrically connected to the electric telescopic rod (422) through a controller.

5. The food packaging sealing detection device according to claim 1, characterized in that, The conveying mechanism (3) includes multiple rotating rods (31) rotatably connected inside the U-shaped shell (2) from left to right, a conveyor belt (32) tensioned together on the outer side wall of the multiple rotating rods (31), double-groove synchronous pulleys (33) fixedly connected to the multiple rotating rods (31) passing through the U-shaped shell (2) in sequence, and a motor (34) fixedly installed on one side of the U-shaped shell (2). The output end of the motor (34) is fixedly connected to the shaft of the double-groove synchronous pulley (33), and the multiple double-groove synchronous pulleys (33) are connected by a synchronous belt meshing.

6. The food packaging sealing detection device according to claim 1, characterized in that, The anti-tilt mechanism (5) includes a hand-twisted threaded rod (51) threaded through both sides of the U-shaped shell (2), two follower rods (52) that are relatively movable through both sides of the U-shaped shell (2), and a baffle (53) connected to one end of the two follower rods (52). One end of the hand-twisted threaded rod (51) is rotatably connected to the rear side of the baffle (53), and the two follower rods (52) are located on both sides of the hand-twisted threaded rod (51).

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