Leakage detection method and device for shrimp paste automatic filling and sealing production line

Abstract

The invention provides a method and device for detecting air leakage of an automatic shrimp paste filling and sealing production line, which relates to the technical field of sealing detection, and comprises a conveying platform, wherein the conveying platform is provided with two groups, and shrimp paste cans are placed on the conveying platform at equal intervals, and two groups of sealing components are arranged between the two groups of the conveying platforms, and the sealing component comprises a water tank, a partition is fixed inside the water tank, and a sealing opening is opened on the top of the water tank, and the conveying platform is located between the two groups of water tanks and a fixing frame is fixed thereon, and a driving component is installed at the bottom of the fixing frame, and the driving component comprises a cross plate. Compared with the prior art, through the cooperation of the driving component and the two groups of conveying platforms, the shrimp paste cans on the two conveying platforms can be clamped at the same time, and transported to the sealing component for sealing detection, and after the detection is completed, the surface of the can body is quickly wiped dry by the wiping component, and then the can body is returned to the conveying platform, thereby improving the detection efficiency and effectively cleaning the water stains on the surface of the can body.

Description

Technical Field

[0001] The invention relates to the technical field of sealing detection, and in particular to a method and a device for detecting air leakage in an automatic shrimp paste filling and sealing production line. Background Art

[0002] Shrimp paste is one of the commonly used seasonings in coastal areas of China, Hong Kong, China, and Southeast Asia. It is made of small shrimps with salt, fermented and ground into a sticky paste. It tastes very salty and is usually made into canned condiments and sold in the market. When producing shrimp paste, in order to prevent the shrimp paste from deteriorating, it is usually tested for air leakage after filling and sealing.

[0003] The main method for detecting air leakage at the mouth of shrimp paste bottle is the negative pressure method, which is a commonly used method for detecting the sealing performance of packaging. Its principle is to place the package in distilled water in a vacuum tank and evacuate the vacuum tank to create a certain pressure difference inside and outside the package. If the heat-sealed part or the bottle mouth of the package is not sealed firmly, or there are pinholes or other types of sealing defects on the surface of the package, the gas inside the package will leak out from the weak seal, which will appear as continuous bubbles in the water. The greater the pressure value when the package leaks, the better its sealing performance.

[0004] For conventional negative pressure testing of sealing, the bottled shrimp pastes need to be put into a sealed water tank one by one, and the sealing quality is judged by whether bubbles are generated based on the difference in internal and external pressures. In this process, it is inconvenient to test and take out the bottles one by one, and the efficiency is low. After being soaked in water and taken out, there will be more water on the surface of the shrimp paste bottles, and subsequent drying treatment is required, which is also inconvenient. Summary of the invention

[0005] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a method and device for detecting air leakage in an automatic filling and sealing production line for shrimp paste so as to solve the problems raised in the above-mentioned background technology. The present invention has a novel structure. Through the cooperation of a driving component and two sets of conveying platforms, the shrimp paste cans on the two conveying platforms can be clamped at the same time and transported to the sealing component for sealing testing. After the test is completed, the surface of the can body is quickly wiped dry by the wiping component and then sent back to the conveying platform, thereby improving the detection efficiency and effectively cleaning the water stains on the surface of the can body.

[0006] In order to achieve the above-mentioned purpose, the present invention is implemented through the following technical scheme: a shrimp paste automatic filling and sealing production line leakage detection device, including a conveying platform, the conveying platform is provided with two groups, and shrimp paste cans are placed equidistantly on the conveying platform, two groups of sealing components are arranged between the two groups of the conveying platforms, the sealing component includes a water tank, a partition is fixed inside the water tank, and a sealing port is opened on the top of the water tank, the conveying platform is located between the two groups of water tanks and a fixed frame is fixed, a driving component is installed at the bottom of the fixed frame, the driving component includes a cross plate, and second electric push rods are fixed at both ends of the cross plate, and the second electric push rods are fixed at both ends of the cross plate. A sealing plate is fixed to the extended end of the rod, and the sealing plate has the same shape as the sealing port. Two groups of clamping frames are symmetrically arranged at the bottom of the sealing plate, and the shrimp paste jar is clamped inside the clamping frames. A wiping assembly is provided on the outer wall of the conveying platform located at the top of the water tank, and the wiping assembly includes an arc plate, and two wiping covers are symmetrically rotatably installed on the surface of the arc plate, and the wiping cover is wrapped around the outer surface of the shrimp paste jar at the bottom of the sealing plate. A slide groove is provided on the outer side of the conveying platform corresponding to the bottom of the arc plate, and a slider is slidably connected in the slide groove, and the slider is fixedly connected to the bottom of the arc plate, and a spring is fixed between the inner wall of the slide groove and the slider.

[0007] Furthermore, the sealing assembly also includes a light source plate, and the two groups of light source plates in two directions are fixed on the outer surface of the two conveying platforms located between the two water tanks, and a receiving plate is fixed on the other side surface of the conveying platform located on the water tank.

[0008] Furthermore, the driving assembly also includes a first motor, the first motor is fixed on the top of the fixing frame, and a first electric push rod is fixed on the output end of the first motor, and the first electric push rod is fixedly installed in the middle position of the cross plate.

[0009] Furthermore, a driving box is fixed to the extended end of the first electric push rod, and third electric push rods are rotatably mounted at both horizontal ends of the driving box, and the third electric push rod is fixedly connected to the output end of the small motor inside the driving box.

[0010] Furthermore, a movable groove is opened at the bottom of the sealing plate, and a bidirectional screw is rotatably installed inside the movable groove through a bearing. Two movable blocks are symmetrically threaded on the surface of the bidirectional screw, and a connecting plate is fixed at the bottom of the movable block, and the connecting plate is fixedly connected to two clamping frames in the same straight line.

[0011] Furthermore, one end of the bidirectional screw passes through the sealing plate and is fixed with an insertion shaft, and the extended end of the third electric push rod is fixed with a protrusion, and the protrusion is slidably inserted into the interior of the insertion shaft.

[0012] Furthermore, the wiping assembly also includes a rotating groove, a rotating groove is arranged on the top of the arc plate, a connecting frame is fixed to the extended end of the third electric push rod, and a buckle plate is fixed to one end of the connecting frame passing through the rotating groove, the buckle plate is in extrusion contact with the back side of the arc plate, a moving opening is opened on the surface of the connecting frame, and the extended end of the second electric push rod passes through the moving opening.

[0013] Furthermore, a third gear is fixed to the bottom of the wiping cover, and two second gears are symmetrically rotatably mounted inside the arc plate through bearings, and both sides of the second gear pass through the arc plate, and one side of the second gear is meshed with the third gear.

[0014] Furthermore, a second motor is fixed to the back of the arc plate, and a first gear is fixed to the output end of the second motor, and the first gear is meshed and connected with the other sides of the two groups of second gears.

[0015] A method for detecting air leakage in a shrimp paste automatic filling and sealing production line, the method comprising the following steps:

[0016] (1) Preparation: Arrange the filled shrimp paste cans evenly on two groups of conveying tables for simultaneous conveying. When conveying to the inspection station, the clamping frame of the driving assembly clamps two adjacent shrimp paste cans on the two groups of conveying tables;

[0017] (2) Leakage detection: The driving assembly and the shrimp paste can are rotated 90 degrees together and placed in the water tank of the sealing assembly to extract the air in the water tank. Through the effect of negative pressure, the light source board illuminates the inside of the water tank. The refracted light is received by the receiving board. Whether there are bubbles in the water is detected based on the intensity of the received light, so as to determine the sealing quality of the shrimp paste can;

[0018] (3) Wiping off moisture: After the shrimp paste can is taken out of the water tank, the wiping cover is wrapped around the outer surface of the shrimp paste can through the linkage of the driving component and the wiping component, and the outer surface of the shrimp paste can is wiped and cleaned by rotating to remove water stains;

[0019] (4) Returning the shrimp paste cans: The shrimp paste cans with leakage problems are manually removed, and the shrimp paste cans that have been tested are returned to the placement slots on the conveyor table, and the next group of shrimp paste cans are tested.

[0020] Beneficial effects of the present invention:

[0021] 1. The present invention arranges a partition in the middle of the water tank to divide the internal space of the water tank, and two groups of sealing tests are performed simultaneously without interfering with each other, and the detection efficiency can be improved.

[0022] 2. According to the present invention, after the shrimp paste jar rises and leaves the water tank, the extended end of the third electric push rod is retracted, and the buckle plate pulls the arc plate to slide along the slide groove until the third gear is located at the bottom of the shrimp paste jar. The wiping cover is wrapped around the periphery of the shrimp paste jar, and the first gear is driven by the second motor to rotate and mesh with the two second gears. The second gear is then engaged with the third gear to drive the wiping cover to rotate, and the outer surface of the shrimp paste jar is wiped dry. The left and right sides of the rotating groove on the upper end of the arc plate are hollowed out, and the connection between the upper and lower ends of the arc plate is maintained by the connecting piece on the back.

[0023] 3. The present invention drives the first electric push rod, the cross plate and the second electric push rod to rotate by the first motor, and rotates the sealing plate to the top of the conveying platforms on both sides. At this time, the two groups of clamping frames at the bottom of each sealing plate correspond to the two shrimp paste cans respectively. The second electric push rod and the first electric push rod are simultaneously lowered to wrap the clamping frames around the periphery of the shrimp paste cans. The third electric push rod is driven to rotate by the small motor in the driving box, and the convex block at the extended end of the third electric push rod is plugged into the plug shaft, thereby driving the rotation of the bidirectional screw. The two moving blocks cooperate with the bidirectional screw to slide along the moving groove, and the two groups of clamping frames can clamp the two shrimp paste cans at the same time, and then the extended ends of the first electric push rod and the second electric push rod are retracted to lift the shrimp paste cans, and relying on the rotation of the first motor, the shrimp paste cans are placed on the top of the water tank, the extended end of the third electric push rod is first retracted, and the second electric push rod drives the shrimp paste cans to be inserted into the water tank, the sealing plate covers the sealing port of the water tank, and the gas in the water tank is extracted by the vacuum pump to detect the sealing of the shrimp paste cans.

[0024] 4. Compared with the prior art, the present invention, through the cooperation of the driving component and the two groups of conveying platforms, can clamp the shrimp paste cans on the two conveying platforms at the same time and transport them to the sealing component for sealing testing. After the test is completed, the surface of the can body is quickly wiped dry by the wiping component and then sent back to the conveying platform, thereby improving the detection efficiency and effectively cleaning the water stains on the surface of the can body. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall front structure of the air leakage detection device of the shrimp paste automatic filling and sealing production line of the present invention;

[0026] Figure 2 It is a schematic diagram of the top structure of the conveyor platform of the air leakage detection device of the shrimp paste automatic filling and sealing production line of the present invention;

[0027] Figure 3 It is a schematic diagram of the connection between the wiping component and the conveying platform of the air leakage detection device of the shrimp paste automatic filling and sealing production line of the present invention;

[0028] Figure 4 This is a schematic structural diagram of a wiping component of an air leakage detection device for an automatic shrimp paste filling and sealing production line of the present invention;

[0029] Figure 5 It is a schematic diagram of the positional relationship between the driving component and the sealing component of the air leakage detection device of the shrimp paste automatic filling and sealing production line of the present invention;

[0030] Figure 6 It is a schematic diagram of the positional relationship between the wiping component and the sealing component of the air leakage detection device of the shrimp paste automatic filling and sealing production line of the present invention;

[0031] Figure 7 This is a schematic diagram of the bottom structure of the sealing plate of the air leakage detection device of the shrimp paste automatic filling and sealing production line of the present invention;

[0032] Figure 8 It is a schematic diagram of the connection between the plug shaft and the third electric push rod of the leakage detection device of the shrimp paste automatic filling and sealing production line of the present invention.

[0033] In the figure: 1, conveying platform; 11, shrimp paste jar; 2, fixing frame; 3, driving assembly; 31, first motor; 32, first electric push rod; 33, second electric push rod; 34, horizontal plate; 35, sealing plate; 36, clamping frame; 37, driving box; 38, third electric push rod; 39, connecting frame; 310, moving mouth; 311, buckle plate; 312, moving groove; 313, two-way screw; 314, moving block; 315, connecting plate; 316, plug shaft; 317, bump; 4, wiping assembly; 41, slide groove; 42, spring; 43, slider; 44, arc plate; 45, rotating groove; 46, second motor; 47, first gear; 48, second gear; 49, third gear; 410, wiping cover; 5, sealing assembly; 51, water tank; 52, light source board; 53, receiving board; 54, sealing mouth; 55, partition. DETAILED DESCRIPTION

[0034] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0035] See also Figures 1 to 8 , the present invention provides a technical solution:

[0036] A method for detecting air leakage in a shrimp paste automatic filling and sealing production line, the method comprising the following steps:

[0037] (1) Preparation: Arrange the filled shrimp paste cans evenly on two groups of conveying tables for simultaneous conveying. When conveying to the inspection station, the clamping frame of the driving assembly clamps two adjacent shrimp paste cans on the two groups of conveying tables;

[0038] (2) Leakage detection: The driving assembly and the shrimp paste can are rotated 90 degrees together and placed in the water tank of the sealing assembly to extract the air in the water tank. Through the effect of negative pressure, the light source board illuminates the inside of the water tank. The refracted light is received by the receiving board. Whether there are bubbles in the water is detected based on the intensity of the received light, so as to determine the sealing quality of the shrimp paste can;

[0039] (3) Wiping off moisture: After the shrimp paste can is taken out of the water tank, the wiping cover is wrapped around the outer surface of the shrimp paste can through the linkage of the driving component and the wiping component, and the outer surface of the shrimp paste can is wiped and cleaned by rotating to remove water stains;

[0040] (4) Returning the shrimp paste cans: The shrimp paste cans with leakage problems are manually removed, and the shrimp paste cans that have been tested are returned to the placement slots on the conveyor table, and the next group of shrimp paste cans are tested.

[0041] The invention discloses a leakage detection device for an automatic filling and sealing production line of shrimp paste, comprising a conveying platform 1, wherein the conveying platform 1 is provided with two groups, and shrimp paste cans 11 are placed equidistantly on the conveying platform 1, and two groups of sealing components 5 are provided between the two groups of the conveying platforms 1, and the sealing components 5 include a water tank 51, a partition 55 is fixed inside the water tank 51, and a sealing opening 54 is opened on the top of the water tank 51, and the conveying platform 1 is located between the two groups of water tanks 51 and fixed with a fixing frame 2, and a driving component 3 is installed at the bottom of the fixing frame 2, and the driving component 3 is installed at the bottom of the fixing frame 2. The component 3 includes a horizontal plate 34, and the second electric push rod 33 is fixed at both ends of the horizontal plate 34, and the elongated end of the second electric push rod 33 is fixed with a sealing plate 35, and the sealing plate 35 has the same shape as the sealing port 54, and the bottom of the sealing plate 35 is symmetrically provided with two groups of clamping frames 36, and the shrimp paste can 11 is clamped inside the clamping frame 36. The outer wall of the conveying platform 1 is located at the top of the water tank 51 and is provided with a wiping assembly 4, and the wiping assembly 4 includes an arc plate 44, and two wiping ... The wiping cover 410 is wrapped around the outer surface of the shrimp paste jar 11 at the bottom of the sealing plate 35. A slide groove 41 is provided at a position corresponding to the bottom of the arc plate 44 on the outer side of the conveying platform 1, and a slider 43 is slidably connected in the slide groove 41. The slider 43 is fixedly connected to the bottom of the arc plate 44. A spring 42 is fixed between the inner wall of the slide groove 41 and the slider 43. When the device is used, the shrimp paste jars 11 filled with the filling are evenly arranged on the two groups of conveying platforms 1 for simultaneous conveying. When conveyed to the inspection station, the shrimp paste jars 11 are evenly arranged on the two groups of conveying platforms 1 for simultaneous conveying. The driving component 3 clamps two adjacent shrimp paste jars 11 on the two groups of conveying platforms 1, rotates them ninety degrees and puts them into the water tank 51 of the sealing component 5, extracts the air in the water tank 51, and detects whether bubbles are generated in the water through the effect of negative pressure, so as to judge the sealing quality of the shrimp paste jar 11. After the shrimp paste jar 11 is taken out of the water tank 51, the outer surface of the shrimp paste jar 11 is wiped and cleaned by the wiping component 4 to remove water stains, and the shrimp paste jar 11 that has been inspected is put back into the placement slot of the conveying platform 1.

[0042] In this embodiment, the sealing assembly 5 also includes a light source board 52. The two groups of the conveying platforms 1 are located on the outer surface between the two water tanks 51 and fixed with light source boards 52 in two directions. The conveying platform 1 is located on the other side of the water tank 51 and fixed with a receiving board 53. The water tank 51 is also connected to a vacuum pump for extracting the air inside the water tank 51 to create a negative pressure sealed environment. The principle of cooperation between the light source board 52 and the receiving board 53 is that the bubble detector uses an optical sensor to detect bubbles in the liquid. The optical sensor is usually composed of a light source, a photodiode and a detection circuit. When working, the light source irradiates a light beam into the liquid. When the light beam passes through the liquid, if it encounters bubbles, part of the light will be reflected or scattered by the bubbles, thereby affecting the light intensity received by the photodiode. The photodiode converts the received light signal into an electrical signal, and amplifies and processes it through the detection circuit. According to the processed signal, the bubble detector can determine whether there are bubbles in the liquid and the size, quantity and distribution of the bubbles. The partition 55 is set in the middle of the water tank 51 to divide the internal space of the water tank 51. The two groups of sealing tests are performed simultaneously without interfering with each other, and the detection efficiency can be improved.

[0043] In this embodiment, the driving assembly 3 also includes a first motor 31, the first motor 31 is fixed on the top of the fixing frame 2, and a first electric push rod 32 is fixed on the output end of the first motor 31, the first electric push rod 32 is fixedly installed at the middle position of the horizontal plate 34, a driving box 37 is fixed on the extended end of the first electric push rod 32, and third electric push rods 38 are rotatably installed on both horizontal ends of the driving box 37, the third electric push rod 38 is fixedly connected to the output end of the small motor inside the driving box 37, and a moving groove 312 is opened at the bottom of the sealing plate 35. A bidirectional screw 313 is rotatably installed in the movable groove 312 through a bearing, and two movable blocks 314 are symmetrically threadedly sleeved on the surface of the bidirectional screw 313, and a connecting plate 315 is fixed to the bottom of the movable block 314, and the connecting plate 315 is fixedly connected to two clamping frames 36 in the same straight line, and one end of the bidirectional screw 313 passes through the sealing plate 35 and is fixed with an insertion shaft 316, and the extended end of the third electric push rod 38 is fixed with a protrusion 317, and the protrusion 317 is slidably inserted into the inside of the insertion shaft 316, and the first motor 31 drives the first electric push rod 32, the cross plate 34 and The second electric push rod 33 rotates to rotate the sealing plate 35 to the top of the conveying platform 1 on both sides. At this time, the two groups of clamping frames 36 at the bottom of each sealing plate 35 correspond to two shrimp paste jars 11 respectively. The second electric push rod 33 and the first electric push rod 32 are simultaneously lowered to wrap the clamping frame 36 around the periphery of the shrimp paste jar 11. The third electric push rod 38 is driven to rotate by the small motor in the driving box 37, and the convex block 317 at the extended end of the third electric push rod 38 is plugged into the plug shaft 316, thereby driving the rotation of the bidirectional screw 313. The two moving blocks 314 are matched with the bidirectional screw 313. The two sets of clamping frames 36 can clamp the two shrimp paste jars 11 at the same time, and then the extended ends of the first electric push rod 32 and the second electric push rod 33 are retracted to lift the shrimp paste jars 11, and the shrimp paste jars 11 are placed on the top of the water tank 51 by relying on the rotation of the first motor 31, and the extended end of the third electric push rod 38 is retracted first, and the second electric push rod 33 drives the shrimp paste jars 11 to be inserted into the water tank 51, and the sealing plate 35 covers the sealing port 54 of the water tank 51, and the gas in the water tank 51 is extracted by the vacuum pump to detect the sealing of the shrimp paste jars 11.

[0044] In this embodiment, the wiping assembly 4 also includes a rotating groove 45, and the top of the arc plate 44 is provided with a rotating groove 45. A connecting frame 39 is fixed to the extended end of the third electric push rod 38, and a buckle plate 311 is fixed to one end of the connecting frame 39 passing through the rotating groove 45, and the buckle plate 311 is squeezed and contacted with the back side of the arc plate 44. A moving opening 310 is opened on the surface of the connecting frame 39, and the extended end of the second electric push rod 33 passes along the moving opening 310. A third gear 49 is fixed to the bottom of the wiping cover 410, and two second gears 48 are symmetrically rotatably installed inside the arc plate 44 through bearings, and both sides of the second gear 48 pass through the arc plate 44, and one side of the second gear 48 is meshed and connected with the third gear 49, and a second motor 46 is fixed to the back of the arc plate 44, and a first gear 47 is fixed to the output end of the second motor 46, and the first gear 47 is meshed and connected with the other side of the two groups of second gears 48, and the arc plate 44 is in the spring 42. The initial position under the action is far away from the top of the water tank 51, and will not interfere with the sealing plate 35 descending to cover the sealing port 54 position, and the shrimp paste jar 11 is sent into the water tank 51. At the same time, with the rotation of the cross plate 34, the connecting frame 39 at the extended end of the third electric push rod 38 rotates along the rotating groove 45, and the buckle plate 311 is located on the back of the arc plate 44. After the shrimp paste jar 11 rises and leaves the water tank 51, the extended end of the third electric push rod 38 is retracted, and the buckle plate 311 pulls the arc plate 44 to slide along the slide groove 41 until the third gear 49 is located at the bottom of the shrimp paste jar 11, and the wiping cover 410 is wrapped around the periphery of the shrimp paste jar 11. The first gear 47 is driven by the second motor 46 to rotate and mesh with the two second gears 48, and then the second gear 48 is meshed with the third gear 49 to drive the rotation of the wiping cover 410 to wipe the outer surface of the shrimp paste jar 11. The left and right sides of the rotating groove 45 at the upper end of the arc plate 44 are hollow, and the connection between the upper and lower ends of the arc plate 44 is maintained by the connecting piece on the back.

[0045] When the device is used, the shrimp paste jars 11 that have been filled are evenly arranged on the two groups of conveying platforms 1 for conveying at the same time. When conveying to the inspection station, the first motor 31 drives the first electric push rod 32, the cross plate 34 and the second electric push rod 33 to rotate, and the sealing plate 35 is rotated to the top of the conveying platforms 1 on both sides. At this time, the two groups of clamping frames 36 at the bottom of each sealing plate 35 correspond to two shrimp paste jars 11 respectively, and the second electric push rod 33 and the first electric push rod 32 are simultaneously lowered to wrap the clamping frame 36 around the periphery of the shrimp paste jar 11, and the small motor in the driving box 37 drives the third electric push rod 38 to rotate, and the third electric push rod 38 extends and closes. The protrusion 317 at the long end is plugged into the plug shaft 316, thereby driving the rotation of the bidirectional screw 313. The two moving blocks 314 cooperate with the bidirectional screw 313 to slide along the moving groove 312. The two sets of clamping frames 36 can clamp the two shrimp paste jars 11 at the same time, and then the extended ends of the first electric push rod 32 and the second electric push rod 33 are retracted to lift the shrimp paste jar 11, and the shrimp paste jar 11 is placed on the top of the water tank 51 by relying on the rotation of the first motor 31. The extended end of the third electric push rod 38 is retracted first, and the second electric push rod 33 drives the shrimp paste jar 11 to be inserted into the water tank 51, and the sealing plate 35 covers the sealing port 54 of the water tank 51. , the gas in the water tank 51 is extracted by a vacuum pump, and the sealing of the shrimp paste jar 11 is detected. After the shrimp paste jar 11 is taken out of the water tank 51, the outer surface of the shrimp paste jar 11 is wiped and cleaned by the wiping component 4 to remove water stains, and the shrimp paste jar 11 that has been tested is put back into the placement groove of the conveying platform 1. The arc plate 44 is initially located away from the top of the water tank 51 under the action of the spring 42, and will not interfere with the sealing plate 35 descending to cover the sealing port 54 position, and the shrimp paste jar 11 is sent into the water tank 51. At the same time, with the rotation of the horizontal plate 34, the connecting frame 39 at the extended end of the third electric push rod 38 rotates along the rotating groove 45, and The buckle plate 311 is located on the back of the arc plate 44. After the shrimp paste jar 11 rises and leaves the water tank 51, the extended end of the third electric push rod 38 is retracted, and the buckle plate 311 pulls the arc plate 44 to slide along the slide groove 41 until the third gear 49 is located at the bottom of the shrimp paste jar 11. The wiping cover 410 is wrapped around the periphery of the shrimp paste jar 11, and the first gear 47 is driven by the second motor 46 to rotate and engage with the two second gears 48. The second gear 48 is then engaged with the third gear 49 to drive the wiping cover 410 to rotate, and the outer surface of the shrimp paste jar 11 is wiped dry, and the shrimp paste jar 11 that has been inspected is placed back into the placement slot of the conveyor platform 1.

[0046] The basic principles and main features of the present invention and the advantages of the present invention are shown and described above. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention.

[0047] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An air leakage detection device for an automatic shrimp paste filling and sealing production line, comprising a conveying platform (1), characterized in that: The conveying platform (1) is provided with two groups, and shrimp paste jars (11) are placed on the conveying platform (1) at equal intervals. Two groups of sealing components (5) are provided between the two groups of conveying platforms (1). The sealing component (5) comprises a water tank (51). A partition (55) is fixed inside the water tank (51), and a sealing opening (54) is opened on the top of the water tank (51). The conveying platform (1) is located between the two groups of water tanks (51) and is fixed with a fixing frame (2). A driving component (3) is installed at the bottom of the fixing frame (2). The driving component (3) comprises a transverse plate (34). Second electric push rods (33) are fixed at both ends of the transverse plate (34), and a sealing plate (35) is fixed at the extended end of the second electric push rod (33). The sealing plate (35) has the same shape as the sealing opening (54). Two groups of clamping frames (36) are symmetrically arranged at the bottom of the sealing plate (35), and the shrimp paste jar (11) is clamped inside the clamping frames (36). The outer wall of the conveying platform (1) is located at the top of the water tank (51) and is provided with a wiping assembly (4). The wiping assembly (4) includes an arc plate (44). Two wiping covers (410) are symmetrically and rotatably mounted on the surface of the arc plate (44). The wiping cover (410) is wrapped around the outer surface of the shrimp paste jar (11) at the bottom of the sealing plate (35). A slide groove (41) is opened at a position corresponding to the bottom of the arc plate (44) on the outer side of the conveying platform (1), and a slider (43) is slidably connected in the slide groove (41). The slider (43) is fixedly connected to the bottom of the arc plate (44), and a spring (42) is fixed between the inner wall of the slide groove (41) and the slider (43).

2. The gas leakage detection device for the shrimp paste automatic filling and sealing production line according to claim 1 is characterized in that: The sealing assembly (5) further comprises a light source plate (52), the two groups of the conveying platforms (1) being located on the outer surface between the two water tanks (51) and having the light source plates (52) fixed in two directions, and the conveying platform (1) being located on the other side surface of the water tank (51) and having a receiving plate (53) fixed thereon.

3. The air leakage detection device for the shrimp paste automatic filling and sealing production line according to claim 1 is characterized in that: The driving assembly (3) further comprises a first motor (31), the first motor (31) is fixed on the top of the fixing frame (2), and a first electric push rod (32) is fixed on the output end of the first motor (31), and the first electric push rod (32) is fixedly mounted at the middle position of the transverse plate (34).

4. The air leakage detection device for the shrimp paste automatic filling and sealing production line according to claim 3 is characterized in that: A driving box (37) is fixed to the extended end of the first electric push rod (32), and third electric push rods (38) are rotatably mounted on both horizontal ends of the driving box (37), and the third electric push rod (38) is fixedly connected to the output end of a small motor inside the driving box (37).

5. The air leakage detection device for the shrimp paste automatic filling and sealing production line according to claim 4 is characterized in that: A movable groove (312) is provided at the bottom of the sealing plate (35), and a bidirectional screw (313) is rotatably installed inside the movable groove (312) via a bearing, two movable blocks (314) are symmetrically threadedly sleeved on the surface of the bidirectional screw (313), and a connecting plate (315) is fixed at the bottom of the movable block (314), and the connecting plate (315) is fixedly connected to two clamping frames (36) in the same straight line.

6. The air leakage detection device for the shrimp paste automatic filling and sealing production line according to claim 5 is characterized in that: One end of the bidirectional screw (313) passes through the sealing plate (35) and is fixed with an insertion shaft (316), and the extended end of the third electric push rod (38) is fixed with a protrusion (317), and the protrusion (317) is slidably inserted into the interior of the insertion shaft (316).

7. The gas leakage detection device for the shrimp paste automatic filling and sealing production line according to claim 6 is characterized in that: The wiping assembly (4) also includes a rotating groove (45), the top of the arc plate (44) is provided with a rotating groove (45), the extended end of the third electric push rod (38) is fixed with a connecting frame (39), and one end of the connecting frame (39) passing through the rotating groove (45) is fixed with a buckle plate (311), the buckle plate (311) is in extrusion contact with the back side of the arc plate (44), and a moving opening (310) is opened on the surface of the connecting frame (39), and the extended end of the second electric push rod (33) passes through the moving opening (310).

8. The air leakage detection device for the shrimp paste automatic filling and sealing production line according to claim 7 is characterized in that: A third gear (49) is fixed to the bottom of the wiping cover (410), and two second gears (48) are symmetrically rotatably mounted inside the arc plate (44) via bearings, with both sides of the second gear (48) passing through the arc plate (44), and one side of the second gear (48) is meshedly connected with the third gear (49).

9. The air leakage detection device for the shrimp paste automatic filling and sealing production line according to claim 8, characterized in that: A second motor (46) is fixed to the back of the arc plate (44), and a first gear (47) is fixed to the output end of the second motor (46), and the first gear (47) is meshedly connected with the other side of the two sets of second gears (48).

10. The method for detecting air leakage in the shrimp paste automatic filling and sealing production line implemented by the device according to claim 1 is characterized in that: The detection method comprises the following steps: (1) Preparation: Arrange the filled shrimp paste cans evenly on two groups of conveying tables for simultaneous conveying. When conveying to the inspection station, the clamping frame of the driving assembly clamps two adjacent shrimp paste cans on the two groups of conveying tables; (2) Leakage detection: The driving assembly and the shrimp paste can are rotated 90 degrees together and placed in the water tank of the sealing assembly to extract the air in the water tank. Through the effect of negative pressure, the light source board illuminates the inside of the water tank. The refracted light is received by the receiving board. Whether there are bubbles in the water is detected based on the intensity of the received light, so as to determine the sealing quality of the shrimp paste can; (3) Wiping off moisture: After the shrimp paste can is taken out of the water tank, the wiping cover is wrapped around the outer surface of the shrimp paste can through the linkage of the driving component and the wiping component, and the outer surface of the shrimp paste can is wiped and cleaned by rotating to remove water stains; (4) Returning the shrimp paste cans: The shrimp paste cans with leakage problems are manually removed, and the shrimp paste cans that have been tested are returned to the placement slots on the conveyor table, and the next group of shrimp paste cans are tested.

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