A food can sealing inspection apparatus

Abstract

The application relates to the technical field of sealing detection equipment, in particular to food can sealing detection equipment which comprises a base, a supporting table is installed at the top center position of the base, after a servo motor is started, a first bevel gear drives a second bevel gear to rotate, thereby driving a vertical pipe to rotate in a fixed frame, the ascending or descending of a threaded rod can be realized, thereby driving a sealing cover to ascend or descend, an air suction pump draws air in the sealing cover out through a suction head through a connecting pipe, when the air pressure in the sealing cover is reduced, the air pressure in the cans is relatively high, the cans expand outward, when the cans have gaps, the air in the cans is discharged outward, thereby driving the internal liquid to flow out, whether the cans leak or not can be judged by observing whether the cans leak or not, if the cans are sealed badly and the liquid leaks, the liquid will flow into a collecting box through the gap of the supporting table, pollution of the equipment is avoided, subsequent cleaning is facilitated, the operation is convenient, and the practicability is better.

Description

Technical Field

[0001] This application relates to the technical field of sealing testing equipment, and in particular to a sealing testing equipment for canned food. Background Technology

[0002] Canned food is a type of processed food that has been pre-treated and placed in sealed containers (such as metal cans or glass bottles). The food is then sterilized at high temperatures to eliminate pathogenic and spoilage microorganisms, and the sealed packaging prevents secondary contamination from external air and microorganisms, thus enabling long-term preservation at room temperature. Its core principle is based on the concept of "commercial sterility," which means that the number of microorganisms in the food is reduced to below a safe level through thorough heating, and then sealed packaging prevents the invasion of external microorganisms, ultimately achieving the effect of preservation for months to years without refrigeration.

[0003] Regarding the aforementioned technologies, the inventors believe that in traditional technologies, when testing the sealing performance of canned goods, it is generally necessary to place the cans in 80°C water to observe whether bubbles are generated to determine the sealing performance. However, when micropores appear in the cans, the bubbles are not obvious enough and can easily affect the test results, thus having certain drawbacks. Therefore, in order to solve the above problems, this application provides a food can sealing test device. Utility Model Content

[0004] The purpose of this invention is to provide a food can sealing testing device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a food can sealing detection device, comprising a base, a support platform installed at the top center of the base, a fixing frame installed on the top of the base and on the support platform, a fixing frame installed on the inner top of the fixing frame, a vertical pipe installed inside the fixing frame, a threaded rod installed on the inner side wall of the vertical pipe and below the fixing frame, a sealing cover installed at the bottom of the threaded rod, an air pump installed at one top end of the sealing cover, and suction heads symmetrically installed at one bottom end of the sealing cover.

[0006] Preferably, a servo motor is installed on the inner side wall of the fixed frame, a first bevel gear is installed on the output shaft of the servo motor, the top of the riser is rotatably connected to the inner top of the fixed frame, and a second bevel gear is installed on the outer ring surface of the riser, with the first bevel gear and the second bevel gear meshing with each other.

[0007] Preferably, one end of the riser passes through the fixing frame and extends below its bottom, and the inner wall of the riser is threadedly connected to the outer ring surface of the threaded rod.

[0008] Preferably, limit rods are symmetrically installed on the top of the sealing cover and at both ends of the threaded rod. One top end of the limit rod extends through the inner side of the fixing frame, and the outer ring surface of the limit rod is slidably connected to the inside of the fixing frame.

[0009] Preferably, the air pump is provided with a connecting pipe on its exterior, and one end of the connecting pipe passes through the sealing cover and is connected to the air intake head.

[0010] Preferably, a sealing gasket is installed on the top of the base and on the outside of the support platform. The size of the sealing gasket is adapted to the size of the bottom of the sealing cover. The sealing gasket is located directly below the sealing cover. A collection box is installed on the top of the base and below the support platform.

[0011] In summary, this application includes the following beneficial technical effects:

[0012] This food can sealing detection equipment uses a servo motor. After starting, the first bevel gear drives the second bevel gear to rotate, which in turn drives the riser to rotate within a fixed frame. By controlling the rotation direction of the riser, the threaded rod can be raised or lowered, which in turn raises or lowers the sealing cover. When the sealing cover is lowered and tightly fitted with the sealing gasket, the air pump draws air out of the sealing cover through the suction head via the connecting pipe. When the air pressure inside the sealing cover decreases, the air pressure inside the can relatively increases, causing it to expand outward. When there is a gap in the can, the air inside the can will be discharged outward, causing the internal liquid to flow out. By observing whether there is liquid leakage, it can be determined whether there is air leakage. If the can is not properly sealed and causes liquid leakage, the liquid will flow into the collection box through the gaps in the support platform, avoiding contamination of the equipment and facilitating subsequent cleaning. It is easy to operate and has better practicality. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of a food can sealing detection device according to an embodiment of this application;

[0014] Figure 2 This is a schematic diagram of the overall structure of a food can sealing detection device according to an embodiment of this application, shown on the left side.

[0015] Figure 3 This is a schematic diagram of the overall structure of a food can sealing testing device according to an embodiment of this application;

[0016] Figure 4 This is a schematic diagram of the sealing cover part in a food can sealing detection device according to an embodiment of this application.

[0017] Explanation of reference numerals in the attached drawings: 1. Base; 2. Support platform; 3. Fixing frame; 4. Fixing frame; 5. Vertical pipe; 6. Threaded rod; 7. Sealing cover; 8. Air pump; 9. Suction head; 10. Servo motor; 11. First bevel gear; 12. Second bevel gear; 13. Limiting rod; 14. Connecting pipe; 15. Sealing gasket; 16. Collection box. Detailed Implementation

[0018] The following is in conjunction with the appendix Figure 1 - Figure 4 This application will be described in further detail.

[0019] A food can seal testing device, referring to Figure 1 - Figure 4 The system includes a base 1, a support platform 2 installed at the top center of the base 1, a fixing frame 3 installed on the top of the base 1 and on the support platform 2, a fixing frame 4 installed on the inner top of the fixing frame 3, a riser 5 installed inside the fixing frame 4, a threaded rod 6 installed on the inner wall of the riser 5 and below the fixing frame 4, a sealing cover 7 installed at the bottom of the threaded rod 6, an air pump 8 installed at one top end of the sealing cover 7, and suction heads 9 symmetrically installed at one bottom end of the sealing cover 7.

[0020] Reference Figure 1 - Figure 4 A servo motor 10 is installed on the inner wall of the fixed frame 4. A first bevel gear 11 is installed on the output shaft of the servo motor 10. The top of the riser 5 is rotatably connected to the top of the inner side of the fixed frame 4. A second bevel gear 12 is installed on the outer ring surface of the riser 5. The first bevel gear 11 and the second bevel gear 12 mesh with each other. One end of the bottom of the riser 5 passes through the fixed frame 4 and extends below its bottom. The inner wall of the riser 5 is threadedly connected to the outer ring surface of the threaded rod 6. After the servo motor 10 is started, it drives the second bevel gear 12 to rotate through the first bevel gear 11, thereby driving the riser 5 to rotate within the fixed frame 4. When the riser 5 rotates, the threaded rod 6 generates a vertical linear motion due to the threaded engagement. By controlling the rotation direction of the riser 5, the threaded rod 6 can be raised or lowered, thereby driving the sealing cover 7 to rise and fall.

[0021] Reference Figure 1 - Figure 4 Limiting rods 13 are symmetrically installed on the top of the sealing cover 7 and at both ends of the threaded rod 6. One end of the limiting rod 13 extends through the inner side of the fixed frame 4, and the outer ring surface of the limiting rod 13 is slidably connected to the inside of the fixed frame 4. The limiting rod 13 restricts the rotational freedom of the sealing cover 7, allowing it to only move vertically. When the threaded rod 6 rotates, the limiting rod 13 slides within the fixed frame 4 to ensure the stability of the movement trajectory of the sealing cover 7 and prevent deviation.

[0022] Reference Figure 3 - Figure 4 The external part of the vacuum pump 8 is equipped with a connecting pipe 14. One end of the connecting pipe 14 passes through the sealing cover 7 and is connected to the suction head 9. When the sealing cover 7 is lowered and tightly fitted with the sealing gasket 15, the vacuum pump 8 draws the air in the sealing cover 7 out through the suction head 9 via the connecting pipe 14. When the air pressure inside the sealing cover 7 decreases, the air pressure inside the can increases relatively and expands outward. When there is a gap in the can, the air inside the can will be discharged outward, thereby causing the internal liquid to flow out. Thus, by observing whether there is liquid leakage in the can, it can be determined whether there is air leakage.

[0023] Reference Figure 3 - Figure 4 A sealing gasket 15 is installed on the top of the base 1 and outside the support platform 2. The size of the sealing gasket 15 is adapted to the size of the bottom of the sealing cover 7. The sealing gasket 15 is located directly below the sealing cover 7. A collection box 16 is installed on the top of the base 1 and below the support platform 2. When the sealing cover 7 is lowered, its bottom is in close contact with the sealing gasket 15 to form a tighter sealing environment, preventing air leakage and improving detection accuracy. If the can is not properly sealed and causes liquid leakage, the liquid will flow into the collection box 16 through the gap in the support platform 2, avoiding contamination of the equipment and facilitating subsequent cleaning.

[0024] The implementation principle of a food can sealing detection device according to an embodiment of this application is as follows: When using this device, the servo motor 10 is preferably an HBS57 type, and the air pump 8 is preferably a VLK5504 type. The can to be tested is placed on the support platform 2. The servo motor 10 is started by a switch. After the servo motor 10 starts, it drives the second bevel gear 12 to rotate through the first bevel gear 11, thereby driving the riser 5 to rotate within the fixed frame 4. When the riser 5 rotates, the threaded rod 6 generates a vertical linear motion due to the thread engagement. By controlling the rotation direction of the riser 5, the threaded rod 6 can be raised or lowered, thereby driving the sealing cover 7 to rise and fall. The limiting rod 13 restricts the rotational freedom of the sealing cover 7, allowing only its vertical rise and fall. When the threaded rod 6 rotates, the limiting rod 13 slides within the fixed frame 4 to ensure the stability of the movement trajectory of the sealing cover 7 and avoid deviation. When the sealing cover 7 falls... Its bottom is in close contact with the sealing gasket 15 to form a more tight sealing environment, preventing air leakage and improving detection accuracy. When the sealing cover 7 is lowered and tightly fitted with the sealing gasket 15, the air pump 8 is started by the switch. The air pump 8 draws out the air in the sealing cover 7 through the suction head 9 via the connecting pipe 14. When the air pressure inside the sealing cover 7 decreases, the air pressure inside the can increases relatively and expands outward. When there is a gap in the can, the air inside the can will be discharged outward, thereby causing the internal liquid to flow out. Thus, by observing whether there is leakage in the can, it can be determined whether there is air leakage. If the can is not sealed properly and causes liquid leakage, the liquid will flow into the collection box 16 through the gap in the support platform 2, avoiding contamination of the equipment and facilitating subsequent cleaning. It is convenient to operate and has better practicality. The external helix opening angle of the threaded rod 6 is 20 degrees, and the thread self-locking condition meets the following formula calculation: self-locking condition = friction coefficient * tan(helix angle ≥ 1).

[0025] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0026] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0027] Finally: The above description is only a preferred embodiment of the present utility model and is 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 should be included within the protection scope of the present utility model.

[0028] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A food can sealing inspection apparatus comprising a base (1), characterised in that: A support platform (2) is installed at the top center of the base (1). A fixing frame (3) is installed on the top of the base (1) and on the support platform (2). A fixing frame (4) is installed on the inner top of the fixing frame (3). A riser (5) is installed inside the fixing frame (4). A threaded rod (6) is installed on the inner wall of the riser (5) and below the fixing frame (4). A sealing cover (7) is installed at the bottom of the threaded rod (6). An air pump (8) is installed at one top end of the sealing cover (7). Suction heads (9) are symmetrically installed at one bottom end of the sealing cover (7). A servo motor (10) is installed on the inner wall of the fixing frame (4). A first bevel gear (11) is installed on the output shaft of the servo motor (10). The top of the riser (5) is rotatably connected to the inner top of the fixing frame (4). A second bevel gear (12) is installed on the outer ring surface of the riser (5). The first bevel gear (11) and the second bevel gear (12) are connected. The two parts mesh with each other; one end of the bottom of the riser (5) passes through the fixed frame (4) and extends below its bottom, and the inner wall of the riser (5) is threadedly connected to the outer ring surface of the threaded rod (6); the top of the sealing cover (7) and the two ends of the threaded rod (6) are symmetrically installed with limiting rods (13), one end of the top of the limiting rod (13) passes through the inner side of the fixed frame (4), and the outer ring surface of the limiting rod (13) is slidably connected to the inside of the fixed frame (4); the air pump ( 8) is provided with a connecting pipe (14) on the outside. One end of the connecting pipe (14) passes through the sealing cover (7) and is connected to the suction head (9). A sealing gasket (15) is installed on the top of the base (1) and on the outside of the support platform (2). The size of the sealing gasket (15) is adapted to the size of the bottom of the sealing cover (7). The sealing gasket (15) is located directly below the sealing cover (7). A collection box (16) is installed on the top of the base (1) and below the support platform (2).

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