A canned food air tightness detection device

Abstract

The invention belongs to the field of food air tightness detection, and is a canned food air tightness detection device. The canned food air tightness detection device includes a base, characterized in that a detection platform is fixedly provided on the upper side wall of the base, two columns are fixedly provided on the upper side wall of the base, a lifting device is provided on the columns, and the lifting device is used to drive the device to slide up and down, and a detection cavity is slidably provided between the columns, and a detection device is provided in the detection cavity, and the detection device is used to detect the sealing of canned food. The detection cavity is provided with a rotating cavity fixedly provided inside, and a rotating device is provided in the rotating cavity, and the rotating device is used to unscrew the canned bottle cap with poor sealing and wait for resealing. The canned food air tightness detection device can detect the canned food by forming a sealed cavity to determine whether the sealing is good. If it is determined that the sealing is poor, the canned bottle cap will be automatically unscrewed to facilitate subsequent packaging.

Description

Technical Field

[0001] The invention belongs to the field of food air tightness detection, and in particular relates to a canned food air tightness detection device. Background Art

[0002] As we all know, canned food is usually one of people's favorite foods, such as various canned fruits. However, in the production of canned fruits, the airtightness of the bottle cap and the bottle body must be ensured to ensure that the canned bottle maintains a low oxygen state. If there are problems such as leakage or deflation, the bacteria in the canned fruit will slowly multiply with the sugar and other nutrients in the can. If someone eats this canned fruit, it will have a certain impact on the normal health of the human body.

[0003] The device can be adjusted automatically, and the extrusion force generated by the contact between the rotating wheel inside the device and the can bottle body is used to adjust the sliding displacement inside the device, which is conducive to the sealing device to better fit the bottle body.

[0004] After the sealing device fits the protruding part of the bottle body, the adjusting device will produce a small displacement, which will drive the follower sealing block in the sealing device to slide and ensure that this force will not be broken, so that the sealing device can better fit the bottle body.

[0005] A certain amount of air is injected into the sealing cavity and the air pressure is tested. If the pressure value remains unchanged, it proves that the can is well sealed. If the air pressure changes, it proves that the can is leaking. The monitor then activates the rotating device through an electrical signal to unscrew the can cap for subsequent resealing. Summary of the invention

[0006] The purpose of the present invention is to solve the above problems in the existing technology and to propose a canned food airtightness detection device. The canned food airtightness detection device can form a sealed cavity and perform airtightness detection of the can by blowing a certain amount of air into the cavity.

[0007] The object of the present invention can be achieved by the following technical solutions: A canned food air tightness detection device, comprising a base, characterized in that a detection platform is fixedly provided on the upper side wall of the base, two columns are fixedly provided on the upper side wall of the base, a lifting device is provided on the columns, the lifting device is used to drive the device to lift and slide up and down, a detection cavity is slidably provided between the columns, a detection device is provided in the detection cavity, the detection device is used to detect the sealing of the canned food, a first cavity is provided in the detection cavity, a rotating cavity is fixedly provided in the first cavity, a rotating device is provided in the rotating cavity, the rotating device is used to unscrew the canned bottle cap with poor sealing performance and wait for resealing, a detector inlet is provided in the detection cavity, a sealing cavity is fixedly provided on the detector inlet, a sealing device is provided in the sealing cavity, the sealing device is used to form a sealing cavity between the canned bottle cap and the cavity, an adjustment cavity is fixedly provided below the sealing cavity, an adjustment device is provided in the adjustment cavity, the adjustment device is used to adjust the position of the sealing device, and the adjustment device includes four hollow columns fixed on the inner side wall of the adjustment cavity, each of the hollow columns is slidably provided with a sliding rod, and a spring is connected between the sliding rod and the hollow column.

[0008] Furthermore, the lifting device includes a slide rail fixed on the two columns, the detection chamber slides on the slide rail, an air pump is fixed on the crossbeam, a pneumatic telescopic rod is fixed at the lower end of the air pump, an inflation chamber is fixed at the lower end of the pneumatic telescopic rod, an inflation device is provided on the inflation chamber, and the inflation device is used to inject a certain amount of air into the detection chamber.

[0009] Furthermore, the inflation device includes an injection port fixed at the lower end of the inflation chamber, and an air pressure detector is fixedly provided at the lower end of the inflation chamber. After the detection chamber is moved to a predetermined position by telescopic means, air is transferred to the interior of the inflation chamber through the pneumatic telescopic rod, and air is injected into the detection chamber through the injection port.

[0010] Furthermore, the detection device includes the first cavity and the detector inlet arranged inside the detection cavity. When the injection port injects a certain amount of air into the detection cavity to reach a certain air pressure, the air will enter the can with poor sealing performance, causing the air pressure in the cavity to fail to reach a set value, thereby triggering the detector and starting the rotating device through the monitor electrical signal control.

[0011] Furthermore, the rotating device includes a motor fixed on the upper side wall of the first cavity, an output shaft is provided at the output end of the motor, a driving gear is fixed on the output shaft, a rotating disk is rotatably provided in the rotating cavity, six hydraulic blocks are slidably provided on the rotating disk, and teeth are provided on the outer side of the rotating disk and can mesh with the driving gear.

[0012] Furthermore, the sealing device includes four sealing blocks sliding inside the sealing cavity, and a boosting device is provided on the sealing block. The boosting device is used to boost the pressure value at the sealing location to achieve a better sealing effect.

[0013] Furthermore, the boosting device includes two follower sealing blocks sliding on each of the sealing blocks, each of the follower sealing blocks having a tooth pattern on its upper end surface, and each of the sealing blocks having two sliding shafts rotating inside, each of the sliding shafts having a spur gear fixed thereon, and the spur gear can mesh with the follower sealing block for transmission.

[0014] Furthermore, the adjustment device includes a rotating frame fixed near the axis center of each sliding rod, each rotating frame is rotatably provided with a rotating wheel, each rotating frame is fixed with a rack frame, each rack frame is fixed with two racks, eight gear sets are rotatably provided on the lower side wall of the adjustment chamber, the lower side of the gear set is a helical gear, and the upper side of the gear set is a bevel gear, the rack can mesh with the helical gear on the lower side of the gear set, eight rotating shafts are rotatably provided on the side wall of the adjustment chamber, each rotating shaft is fixed with a driven bevel gear, the driven bevel gear can mesh with the bevel gear on the upper side of the gear set, the sliding shaft slides on the rotating shaft, and a connecting rod is connected between the sliding rod and the sealing block.

[0015] When using this equipment, place the cans that need to be tested for sealing on the testing table, start the air pump, and use the air pressure to drive the pneumatic telescopic rod to slide downward. The testing cavity is pushed downward by the pneumatic telescopic rod. The can is wrapped at the entrance of the detector, and the can first enters the adjustment cavity. The side wall of the can bottle is a convex curved structure, with a thin bottle mouth, a thick bottle body, and a thin bottle bottom. The rotating wheel contacts the bottle mouth, bottle body, and bottle bottom in turn, which will generate extrusion pressure. The extrusion pressure will decrease, then increase, and finally decrease. The extrusion pressure will cause the spring to be compressed, and the overall movement of the rotating wheel is a small displacement to the outside, a large displacement to the outside, and a small displacement to the inside. The cam is adapted to move the can body to a desired position, and the cam is adapted to move the can body to a desired position. The cam is adapted to move the can body to a desired position, and the cam is adapted to move the can body to a desired position.

[0016] When the rotating wheel is just squeezed, the rotating frame slides outward, driving the rack frame to slide outward, the two racks on the rack frame slide, the rack meshes with the gear set, the gear set meshes with the driven bevel gear, and the driven bevel gear is driven to rotate. After the driven bevel gear rotates, it will drive the rotating shaft to rotate, and the rotation of the rotating shaft will drive the sliding shaft to rotate. The sliding shaft can slide inside the rotating shaft and rotate with the rotating shaft, so that the spur gear rotates. When the spur gear rotates, it will drive the follower seal block to slide on the seal block, and the follower seal block slides into the inside of the seal block to achieve a contraction The effect of the sealing device is to reserve a reserved position for the sealing device to be inserted into the bottle cap. When the rotating wheel finally produces a small displacement inward due to the decrease in the extrusion pressure, it drives the above-mentioned parts to transmit in the reverse direction, and the follower sealing block slides outward to clamp the bottle body under the can bottle cap to achieve a sealing effect. At the same time, the clamping force transmitted by the transmission effect can ensure that the sealing device fits well on the bottle body without producing too large a gap or moving the sealing device, thereby achieving a closed self-locking effect, ensuring the sealing inside the cavity, and facilitating the subsequent detection of the sealing of the can.

[0017] The air pump mobilizes the air and inputs a certain amount of air into the interior through the injection port. The air pressure inside the cavity is a stable value. When the can is well sealed, air will not enter and the air pressure will remain unchanged. However, if the can is poorly sealed, air will enter the interior of the can, causing the air pressure inside the cavity to change. When the air pressure detector detects the change in the air pressure inside the cavity, it is determined that the can is poorly sealed, and the motor is started to drive the output shaft, which drives the driving gear to rotate. The driving gear meshes with the rotating disk, and the hydraulic block inside the rotating disk slides out and exerts a squeezing force on the bottle cap. The rotating disk rotates to unscrew the bottle cap. The air pressure in the sealed cavity is tested to detect whether the can is well sealed. If the sealing is poor, the bottle cap is directly unscrewed for subsequent resealing. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the appearance structure of a canned food air tightness detection device.

[0019] Figure 2 It is an internal cross-sectional view of a canned food air tightness testing device.

[0020] Figure 3 yes Figure 2 Section view along AA direction.

[0021] Figure 4 yes Figure 2 Cross-sectional view along BB direction.

[0022] Figure 5 yes Figure 2 Sectional view along CC direction.

[0023] In the figure, 10, base; 11, test bench; 12, column; 13, air pump; 14, pneumatic telescopic rod; 15, slide rail; 16, air chamber; 17, test chamber; 18, motor; 19, output shaft; 20, rotating chamber; 21, detector inlet; 22, sealing chamber; 23, sealing block; 24, adjustment chamber; 25, hollow column; 26, spring; 27, connecting rod; 28, rotating frame; 29, rack frame; 30, rack; 31, gear set; 32, rotating shaft; 33, sliding shaft; 34, driven bevel gear; 35, spur gear; 36, rotating wheel; 37, follower sealing block; 38, rotating disk; 39, hydraulic block; 40, driving gear; 41, beam; 42, injection port; 43, air pressure detector; 44, sliding rod. DETAILED DESCRIPTION

[0024] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0025] like Figure 1 As shown, a canned food air tightness detection device includes a base 10, characterized in that a detection platform 11 is fixedly provided on the upper side wall of the base 10, two columns 12 are fixedly provided on the upper side wall of the base 10, a lifting device is provided on the column 12, the lifting device is used to drive the device to lift and slide up and down, a detection cavity 17 is slidably provided between the columns 12, a detection device is provided in the detection cavity 17, the detection device is used to detect the airtightness of the canned food, a first cavity 45 is provided in the detection cavity 17, a rotating cavity 20 is fixedly provided in the first cavity 45, a rotating device is provided in the rotating cavity 20, and the rotating device is used to unscrew the can cap with poor airtightness, etc. To be resealed, a detector inlet 21 is provided in the detection cavity 17, a sealing cavity 22 is fixedly provided on the detector inlet 21, a sealing device is provided in the sealing cavity 22, and the sealing device is used to form a sealed cavity between the can bottle cap and the cavity body, an adjustment cavity 24 is fixedly provided below the sealing cavity 22, an adjustment device is provided in the adjustment cavity 24, and the adjustment device is used to adjust the position of the sealing device, and the adjustment device includes four hollow columns 25 fixed on the inner side wall of the adjustment cavity 24, a sliding rod 44 is slidably provided on each hollow column 25, and a spring 26 is connected between the sliding rod 44 and the hollow column 25.

[0026] like Figure 2 As shown, the lifting device includes a slide rail 15 fixed on two columns 12, and the detection cavity 17 slides on the slide rail 15. An air pump 13 is fixed on the cross beam 41. A pneumatic telescopic rod 14 is fixed at the lower end of the air pump 13. An inflation cavity 16 is fixed at the lower end of the pneumatic telescopic rod 14. An inflation device is provided on the inflation cavity 16, and the inflation device is used to inject a certain amount of air into the detection cavity 17.

[0027] like Figure 2As shown, the inflation device includes an injection port 42 fixed at the lower end of the inflation chamber 16, and an air pressure detector 43 is fixed at the lower end of the inflation chamber 16. After the detection chamber 17 is moved to a predetermined position through telescopic movement, air is transferred to the interior of the inflation chamber 16 through the pneumatic telescopic rod 14, and air is injected into the detection chamber 17 through the injection port 42.

[0028] like Figure 2 As shown, the detection device includes a first cavity 45 and a detector inlet 21 arranged inside the detection cavity 17. When the injection port 42 injects a certain amount of air into the detection cavity 17 to reach a certain air pressure, the air will enter the can with poor sealing performance, causing the air pressure in the cavity to fail to reach a predetermined value, thereby triggering the detector and starting the rotating device through the monitor electrical signal control.

[0029] like Figure 2 and Figure 5 As shown, the rotating device includes a motor 18 fixed on the upper side wall of the first cavity 45, an output shaft 19 is provided at the output end of the motor 18, a driving gear 40 is fixed on the output shaft 19, a rotating disk 38 is rotatably provided in the rotating cavity 20, six hydraulic blocks 39 are slidably provided on the rotating disk 38, and a tooth pattern is provided on the outer side of the rotating disk 38 and can mesh with the driving gear 40.

[0030] like Figure 2 and Figure 4 As shown, the sealing device includes four sealing blocks 23 sliding inside the sealing cavity 22. The sealing blocks 23 are provided with a booster device, which is used to boost the pressure value at the sealing location to achieve a better sealing effect.

[0031] like Figure 2 and Figure 4 As shown, the boosting device includes two follower sealing blocks 37 sliding on each sealing block 23, each follower sealing block 37 has a tooth pattern on its upper end surface, and two sliding shafts 33 are rotatably arranged inside each sealing block 23, and each sliding shaft 33 is fixed with a spur gear 35, which can mesh with the follower sealing block 37 for transmission.

[0032] like Figure 2 and Figure 3As shown, the adjustment device includes a rotating frame 28 fixed at the near axis of each sliding rod 44, a rotating wheel 36 is rotatably provided on each rotating frame 28, a rack frame 29 is fixedly provided on each rotating frame 28, and two racks 30 are fixedly provided on each rack frame 29. Eight gear sets 31 are rotatably provided on the lower side wall of the adjustment chamber 24. The lower side of the gear set 31 is a helical gear, and the upper side of the gear set 31 is a bevel gear. The rack 30 can mesh with the helical gear on the lower side of the gear set 31. Eight rotating shafts 32 are rotatably provided on the side wall of the adjustment chamber 24, and a driven bevel gear 34 is fixedly provided on each rotating shaft 32. The driven bevel gear 34 can mesh with the bevel gear on the upper side of the gear set 31. The sliding shaft 33 slides on the rotating shaft 32, and a connecting rod 27 is connected between the sliding rod 44 and the sealing block 23.

[0033] When using the device, the cans that need to be tested for sealing are placed on the testing table 11, and the air pump 13 is started. The air pressure drives the pneumatic telescopic rod 14 to slide downward, and the testing cavity 17 is pushed downward by the pneumatic telescopic rod 14. The can is wrapped at the detector entrance 21, and the can first enters the adjustment cavity 24. The side wall of the can bottle is a convex curved structure, the bottle mouth is thin, the bottle body is thick, and the bottle bottom is thin. The rotating wheel 36 contacts the bottle mouth, the bottle body and the bottle bottom in turn, which will generate an extrusion force. The extrusion force will decrease, then increase, and finally decrease. The extrusion force will cause the spring 26 to be compressed, and the overall movement mode of the rotating wheel 36 is a small displacement to the outside, a large displacement to the outside, and a small displacement to the inside. , achieving an effect of adjusting the motion displacement by means of the curve of the can bottle body structure, the rotating wheel 36 is squeezed, the rotating frame 28 moves, the rotating frame 28 drives the rack frame 29 to move, and also drives the sliding rod 44 to move. When the sliding rod 44 moves outward, a connecting rod 27 is connected between the sliding rod 44 and the sealing block 23, so that the movement of the sliding rod 44 drives the sealing block 23 to move, avoiding the problem that the sealing device cannot cooperate with the bottle body structure, causing leakage or failing to wrap the bottle cap normally. The adjustment device can also be adjusted during the adjustment process. The radius of the sealing device can adapt to bottles of different sizes within a certain range, and it is highly practical.

[0034] When the rotating wheel 36 is just squeezed, the rotating frame 28 slides outward, driving the rack frame 29 to slide outward, the two racks 30 on the rack frame 29 slide, the rack 30 meshes with the gear set 31, the gear set 31 meshes with the driven bevel gear 34, and the driven bevel gear 34 is driven to rotate. After the driven bevel gear 34 rotates, it will drive the rotating shaft 32 to rotate. The rotation of the rotating shaft 32 will drive the sliding shaft 33 to rotate. The sliding shaft 33 can slide inside the rotating shaft 32 and rotate with the rotating shaft 32, so that the spur gear 35 rotates. When the spur gear 35 rotates, it will drive the follower seal block 37 to slide on the seal block 23. The sealing block 37 slides toward the inside of the sealing block 23 to achieve the effect of shrinking the sealing device, thereby leaving a reserved position for the sealing device to be inserted into the bottle cap. When the rotating wheel 36 finally produces a small displacement inward due to the reduction of the extrusion pressure, it drives the above-mentioned parts to transmit in the reverse direction, and the follower sealing block 37 slides outward to clamp the bottle body below the can bottle cap to achieve a sealing effect. At the same time, due to the clamping force transmitted by the transmission effect, it can ensure that the sealing device fits the bottle body without producing too large a gap or the sealing device moving, thereby achieving a closed self-locking effect, ensuring the sealing of the cavity, and facilitating the subsequent detection of the sealing of the can.

[0035] The air pump 13 mobilizes the air, and a certain amount of air is input into the first cavity 45 through the injection port 42. The air pressure inside the cavity is a stable value. When the can is well sealed, air will not enter and the air pressure remains unchanged. However, if the can is poorly sealed, air will enter the can, causing the air pressure inside the cavity to change. When the air pressure detector 43 detects the change in the air pressure inside the cavity, it is determined that the can is poorly sealed, and the motor 18 is started to drive the output shaft 19. The output shaft 19 drives the driving gear 40 to rotate. The driving gear 40 is meshed with the rotating disk 38. The hydraulic block 39 inside the rotating disk 38 slides out and generates a squeezing force on the bottle cap. The rotating disk 38 rotates to screw off the bottle cap. The air pressure in the sealed cavity is detected to detect whether the can is well sealed. If the sealing is poor, the bottle cap is directly screwed off to facilitate subsequent resealing.

[0036] Compared with the prior art, the canned food air tightness detection device has the following advantages:

[0037] 1. The adjustment device prevents the sealing device from leaking or failing to wrap the bottle cap properly due to the inability to match the bottle body structure. The adjustment device can also be adjusted during the adjustment process. The radius of the sealing device can adapt to bottles of different sizes within a certain range, and is highly practical.

[0038] 2. Clamp the bottle body below the can cap to achieve a sealing effect. At the same time, the clamping force transmitted by the transmission effect can ensure that the sealing device fits the bottle body without producing excessive gaps or movement of the sealing device, achieving a closed self-locking effect, ensuring the sealing of the cavity, and facilitating subsequent testing of the sealing of the can.

[0039] 3. Perform air pressure test in the sealing cavity to detect whether the canned bottle is sealed well. If the sealing is poor, directly unscrew the bottle cap to facilitate subsequent resealing.

[0040] The above descriptions are merely embodiments of the present invention, and are not intended to limit the patent protection scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention's specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A canned food air tightness detection device, comprising a base (10), characterized in that: A detection platform (11) is fixedly provided on the upper side wall of the base (10), two columns (12) are fixedly provided on the upper side wall of the base (10), a lifting device is provided on the columns (12), and the lifting device is used to drive the device to lift and slide up and down, a detection cavity (17) is slidably provided between the columns (12), and a detection device is provided in the detection cavity (17), and the detection device is used to detect the sealing property of canned food, a first cavity (45) is provided in the detection cavity (17), and a rotating cavity (20) is fixedly provided in the first cavity (45), and a rotating device is provided in the rotating cavity (20), and the rotating device is used to unscrew the can cap with poor sealing property and wait for resealing, and the detection cavity (17) is provided with a first cavity (45). A detector inlet (21) is provided in the measuring cavity (17), a sealing cavity (22) is fixedly provided on the detector inlet (21), a sealing device is provided in the sealing cavity (22), and the sealing device is used to form a sealing cavity between the can bottle cap and the cavity body, an adjustment cavity (24) is fixedly provided below the sealing cavity (22), an adjustment device is provided in the adjustment cavity (24), and the adjustment device is used to adjust the position of the sealing device, and the adjustment device comprises four hollow columns (25) fixed on the inner side wall of the adjustment cavity (24), a sliding rod (44) is slidably provided on each of the hollow columns (25), and a spring (26) is connected between the sliding rod (44) and the hollow column (25); The lifting device comprises a slide rail (15) fixed on the two uprights (12), the detection chamber (17) slides on the slide rail (15), an air pump (13) is fixed on the crossbeam (41), a pneumatic telescopic rod (14) is fixed at the lower end of the air pump (13), an air inflation chamber (16) is fixed at the lower end of the pneumatic telescopic rod (14), an air inflation device is provided on the air inflation chamber (16), and the air inflation device is used to inject a certain amount of air into the detection chamber (17); The air blowing device comprises an injection port (42) fixed at the lower end of the air blowing chamber (16), and an air pressure detector (43) is fixedly provided at the lower end of the air blowing chamber (16). After the detection chamber (17) is moved to a predetermined position by telescopic movement, the air is transferred to the inside of the air blowing chamber (16) through the pneumatic telescopic rod (14), and air is injected into the inside of the detection chamber (17) through the injection port (42); The detection device comprises the first cavity (45) and the detector inlet (21) arranged inside the detection cavity (17). When the injection port (42) injects a certain amount of air into the detection cavity (17) to reach a certain air pressure, the air will enter the can with poor sealing performance, causing the air pressure in the cavity to fail to reach a predetermined value, thereby triggering the detector and starting the rotating device through the electrical signal of the monitor; The rotating device comprises a motor (18) fixed on the upper side wall of the first cavity (45), an output shaft (19) is provided at the output end of the motor (18), a driving gear (40) is fixedly provided on the output shaft (19), a rotating disk (38) is rotatably provided in the rotating cavity (20), six hydraulic blocks (39) are slidably provided on the rotating disk (38), and a tooth pattern is provided on the outer side of the rotating disk (38) and can mesh with the driving gear (40); The sealing device comprises four sealing blocks (23) sliding inside the sealing cavity (22), and a pressure boosting device is provided on the sealing block (23), and the pressure boosting device is used to boost the pressure value at the sealing location to achieve a better sealing effect; The boosting device comprises two follower sealing blocks (37) sliding on each of the sealing blocks (23), the upper end surface of each of the follower sealing blocks (37) being provided with tooth patterns, two sliding shafts (33) being rotatably provided inside each of the sealing blocks (23), a spur gear (35) being fixedly provided on each of the sliding shafts (33), and the spur gear (35) being capable of meshing with the follower sealing block (37) for transmission; The adjustment device comprises a rotating frame (28) fixed at the near axis of each sliding rod (44), a rotating wheel (36) is rotatably provided on each rotating frame (28), a rack frame (29) is fixedly provided on each rotating frame (28), two racks (30) are fixedly provided on each rack frame (29), eight gear sets (31) are rotatably provided on the lower side wall of the adjustment chamber (24), the lower side of the gear set (31) is a helical gear, and the upper side of the gear set (31) is a bevel gear. The rack (30) is capable of meshing with the bevel gear on the lower side of the gear set (31); eight rotating shafts (32) are rotatably provided on the side wall of the adjustment chamber (24); a driven bevel gear (34) is fixedly provided on each of the rotating shafts (32); the driven bevel gear (34) is capable of meshing with the bevel gear on the upper side of the gear set (31); the sliding shaft (33) slides on the rotating shaft (32); and a connecting rod (27) is connected between the sliding rod (44) and the sealing block (23).

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