Blister product air tightness detection equipment

Abstract

The invention relates to the technical field of blister product detection, in particular to blister product air tightness detection equipment which comprises a mounting plate, a side protection plate and the like. And a side protection plate is mounted on the mounting plate. The plastic uptake part is limited through the bottom plate and the limiting frame together, then the outer shell is covered with the cover plate, so that a closed space is formed in the outer shell, gas is input into the plastic uptake part through the three-way pipe and the guide pipe I, and the gas is detected through operation of the gas flow sensor; therefore, whether the air tightness of the plastic uptake part meets the production standard or not is judged, air tightness detection on the plastic uptake part is achieved, air is guided through the through holes in the side wall of the bottom plate, and therefore when leakage occurs at the containing cavity of the plastic uptake part, the air can flow out through the through holes in the side wall of the bottom plate, and the air tightness of the plastic uptake part is detected. And finally, the gas flows to the gas flow sensor and then is detected through the gas flow sensor, so that the problem that the detection accuracy is influenced as the gas cannot be discharged is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of blister product detection, and particularly to an airtightness detection device for blister products. Background Art

[0002] Based on the existing technology, it is found that since blister products will contain foods or items at different temperatures during actual use, or blister products will be used in different temperature environments, the blister products are prone to thermal expansion and contraction, which in turn affects the sealing structure of the blister products, resulting in the influence on the airtightness of the blister products during actual use. However, the existing technology does not detect the airtightness of blister products in different temperature environments, resulting in great limitations in the airtightness detection of blister products. In addition, since blister products will contain foods or items with a rated mass during actual use, and after the blister products contain foods or items, they will be transported or stacked. During transportation, the blister products will be stacked, which in turn causes the blister products to be squeezed and vibrated during transportation, which is likely to damage the sealing structure of the blister products, thereby affecting the sealing performance of the blister products. However, the existing technology does not simulate the airtightness of blister products after containing foods or items with a rated mass, resulting in incomplete airtightness detection of blister products. Summary of the Invention

[0003] In order to overcome the drawback that blister products will undergo thermal expansion and contraction in different temperature environments, and the existing technology does not detect the airtightness of blister products in different temperature environments, the present invention provides an airtightness detection device for blister products.

[0004] The technical solution is as follows: An airtightness detection device for blister products includes a mounting plate and side guard plates; the side guard plates are mounted on the mounting plate; it further includes a driving component, a cross plate, a fixing plate, a conduit I, a cover plate, a vibration component, a support plate, an outer housing, a conduit II and a gas flow sensor; the driving component is mounted on the mounting plate; the driving component is connected with at least two cross plates, and the driving component is used to drive all the cross plates to move; all the cross plates are commonly fixedly connected with a fixing plate; a conduit I is fixedly connected to one of the fixing plates; the fixing plate is fixedly connected with the cover plate; the mounting plate is connected with a vibration component for vibrating the blister product; the vibration component is connected with the support plate; the support plate is fixedly connected with the outer housing; the outer housing is connected with the vibration component; the outer housing is connected with the conduit II; the gas flow sensor is mounted on the outer housing.

[0005] Preferably, the end of the conduit I close to the outer housing is provided with an inverted cone shape.

[0006] Preferably, a sealing ring is provided on one side of the cover plate close to the outer housing, and a groove corresponding to the sealing ring on the cover plate is provided on the outer housing.

[0007] Preferably, the vibration assembly includes a bottom plate, a seal, a limit frame, a fixing bracket I, a slide bar, an elastic member I, a chassis, and a vibration motor; a seal is connected to the outer housing, and the seal is made of elastic rubber; the seal is fixedly connected with the bottom plate, and several through holes are formed in the side wall of the bottom plate; the bottom plate is fixedly connected with a limit frame, and a filter screen is installed on the limit frame; at least two fixing brackets I are fixedly connected to the mounting plate; at least two slide bars are slidably connected to each fixing bracket I; all the slide bars are slidably connected with the support plate; an elastic member I is sleeved outside each slide bar, one end of the elastic member I is fixedly connected with the fixing bracket I, and the other end of the fixing bracket I is fixedly connected to the support plate; the bottom surface of the bottom plate is fixedly connected with the chassis; the vibration motor is installed on the chassis.

[0008] Preferably, it further includes a porous housing, a floating ball, and a diversion pipe; the porous housing is fixedly connected to the bottom plate, and a wooden floating ball is arranged inside the porous housing; a diversion pipe is arranged on the bottom plate, and the upper part of the diversion pipe is in contact with the floating ball to block the diversion pipe through the floating ball.

[0009] Preferably, an inverted conical pit is arranged at the bottom of the bottom plate near the diversion pipe.

[0010] Preferably, it further includes a circular pipe and a three-way pipe; a three-way joint is connected to the conduit I, one end of the three-way joint is connected with a circular pipe, and a solenoid valve I is installed on the circular pipe; the end of the conduit I far from the circular pipe is connected with a three-way pipe, and a solenoid valve II is installed on the three-way pipe.

[0011] Preferably, it further includes a fixing bracket II, a cylinder, a sealing block, an elastic member II, and a corrugated section; the fixing bracket II is fixedly connected to the conduit I; the cylinder is fixedly connected to the fixing bracket II; the sealing block is slidably connected to the cylinder; at least two elastic members II are fixedly connected between the sealing block and the cylinder; a telescopic corrugated section is arranged on the conduit I.

[0012] Preferably, the sealing block is made of rubber.

[0013] Preferably, it further includes a limiting system; the limiting system is connected to the outer housing; the limiting system includes an airbag, an air pump, and an air pipe; the airbag is fixedly connected to the outer housing; the air pump is installed on the support plate; the air outlet of the air pump is connected with the air pipe; the air pipe is fixedly connected to the outer housing; the air pipe is fixedly connected and communicated with the airbag.

[0014] The advantages and positive effects of the present invention are: (1). The suction plastic part is limited by the bottom plate and the limit frame together, and then the cover plate is covered on the outer housing, so that a closed space is formed inside the outer housing. Then, gas is input into the suction plastic part through the three-way pipe and the conduit I, and the gas is detected by the operation of the gas flow sensor, so as to determine whether the air tightness of the suction plastic part meets the production standard, thereby realizing the air tightness detection of the suction plastic part.

[0015] (2) Guide the gas through several through-holes on the side wall of the bottom plate, so that when there is a leak in the accommodation chamber of the plastic suction part, the gas can flow out through the several through-holes on the side wall of the bottom plate and flow into the chamber between the plastic suction part and the outer shell, and finally flow to the gas flow sensor for detection, thus avoiding the problem that the inability to discharge gas affects the detection accuracy.

[0016] (3) Input hot air and cold air into the plastic suction part to simulate the conditions of the plastic suction part in different temperature environments, and conduct airtightness detection on the plastic suction part again, so as to know the airtightness of the plastic suction part when used in different temperature environments, thereby improving the accuracy of airtightness detection of the plastic suction part.

[0017] (4) Inject water into the plastic suction part through the round pipe and conduit I. After the water volume in the plastic suction part reaches the preset value, form a sealed space in the plastic suction part, so that the plastic suction part is filled with water, simulating the state of the plastic suction part when loaded with food or items of rated mass. Then make the plastic suction part vibrate, so as to know the sealing performance of the plastic suction part after vibration when loaded with food or items of rated mass, thereby realizing a more comprehensive airtightness detection of the plastic suction part.

[0018] (5) Limit the plastic suction part through the inflated airbag, so that the plastic suction part can quickly align with the bottom plate and the limit frame, and limit the plastic suction part through the bottom plate and the limit frame, thereby improving the detection efficiency of the plastic suction part. Description of the Drawings

[0019] Figure 1 It is a three-dimensional structure schematic diagram of the airtightness detection device for plastic suction products of the present invention; Figure 2 It is a schematic diagram of the installation positions of conduit II and gas flow sensor of the airtightness detection device for plastic suction products of the present invention; Figure 3 It is a three-dimensional structure schematic diagram of the plastic suction part of the airtightness detection device for plastic suction products of the present invention; Figure 4 It is a schematic diagram of the installation positions of the bottom plate, seal and limit frame of the airtightness detection device for plastic suction products of the present invention; Figure 5 It is a schematic diagram of the installation positions of the chassis and vibration motor of the airtightness detection device for plastic suction products of the present invention; Figure 6 It is a combined three-dimensional structure schematic diagram of conduit I, round pipe, tee, outer shell, bottom plate, seal and porous cover of the airtightness detection device for plastic suction products of the present invention; Figure 7 It is a combined three-dimensional structure schematic diagram of the bottom plate, porous cover, floating ball and diversion pipe of the airtightness detection device for plastic suction products of the present invention; Figure 8 Schematic combined three-dimensional structure diagram of conduit I, fixing bracket II, cylinder, sealing block and elastic member II of the blister product airtightness detection device of the present invention; Figure 9 Schematic three-dimensional structure diagram of the limit system of the blister product airtightness detection device of the present invention.

[0020] Description of reference numerals: 1 - mounting plate, 2 - side guard plate, 3 - blister product, 31 - upper cover, 32 - air hole, 201 - support frame, 202 - electric actuator, 203 - cross plate, 204 - fixing plate, 205 - conduit I, 206 - cover plate, 207 - support plate, 208 - outer housing, 209 - conduit II, 210 - gas flow sensor, 2051 - round tube, 2052 - tee, 2081 - bottom plate, 2082 - seal, 2083 - limit frame, 301 - fixing bracket I, 302 - slide bar, 303 - elastic member I, 304 - chassis, 305 - vibration motor, 306 - porous housing, 3061 - floating ball, 307 - diversion pipe, 2053 - fixing bracket II, 2054 - cylinder, 2055 - sealing block, 2056 - elastic member II, 2057 - corrugated section, 401 - airbag, 402 - air pump, 403 - air pipe. Detailed implementation manners

[0021] The present invention will be further described below in conjunction with the accompanying drawings and specific implementation manners.

[0022] Embodiment 1: A blister product airtightness detection device, according to Figures 1 - 8 as shown, includes a mounting plate 1 and a side guard plate 2; the side guard plate 2 is mounted on the mounting plate 1; It further includes a driving component, a cross plate 203, a fixing plate 204, a conduit I 205, a cover plate 206, a vibration component, a support plate 207, an outer housing 208, a conduit II 209 and a gas flow sensor 210; the driving component is mounted on the mounting plate 1; the driving component is connected to two cross plates 203; all the cross plates 203 are commonly fixedly connected to a fixing plate 204; a conduit I 205 is fixedly connected to one of the fixing plates 204; the cover plate 206 is fixedly connected to the lower surface of the fixing plate 204; the vibration component is connected to the mounting plate 1; the support plate 207 is connected to the vibration component; the outer housing 208 is fixedly connected to the support plate 207; the outer housing 208 is connected to the vibration component; the conduit II 209 is fixedly connected and communicated with the outer housing 208; the gas flow sensor 210 is mounted on the outer housing 208.

[0023] One end of the conduit I 205 close to the outer housing 208 is arranged in an inverted conical shape for conveniently inserting into the air hole 32 of the upper cover 31.

[0024] A sealing ring is provided on one side of the cover plate 206 close to the outer housing 208, and a groove corresponding to the sealing ring on the cover plate 206 is provided on the outer housing 208, so that after the cover plate 206 and the outer housing 208 are closed, a sealed space is formed inside the outer housing 208.

[0025] The vibration assembly includes a bottom plate 2081, a seal 2082, a limit frame 2083, a fixing bracket I 301, a sliding rod 302, an elastic member I 303, a chassis 304 and a vibration motor 305; a seal 2082 is fixedly connected to the inner bottom of the outer housing 208, and the seal 2082 is made of elastic rubber; the bottom plate 2081 is fixedly connected to the seal 2082, and several through holes are provided on the side wall of the bottom plate 2081; a limit frame 2083 is fixedly connected to the bottom plate 2081, and a filter screen is installed on the limit frame 2083; two fixing brackets I 301 are fixedly connected to the mounting plate 1; two sliding rods 302 are slidably connected to each fixing bracket I 301; all the sliding rods 302 are slidably connected to the support plate 207; an elastic member I 303 is sleeved on the outside of each sliding rod 302, the elastic member I 303 is a spring, one end of the elastic member I 303 is fixedly connected to the fixing bracket I 301, and the other end of the fixing bracket I 301 is fixedly connected to the support plate 207; the bottom surface of the bottom plate 2081 is fixedly connected to a chassis 304; a vibration motor 305 is installed on the chassis 304.

[0026] It also includes a porous housing 306, a floating ball 3061 and a diversion pipe 307; the porous housing 306 is fixedly connected to the bottom plate 2081, and a wooden floating ball 3061 is provided inside the porous housing 306; the diversion pipe 307 is fixedly connected to the bottom plate 2081, and the upper part of the diversion pipe 307 is in contact with the floating ball 3061 to block the diversion pipe 307 through the floating ball 3061.

[0027] A conical pit is provided at the bottom of the bottom plate 2081 near the diversion pipe 307 for guiding water flow.

[0028] It also includes a round pipe 2051 and a tee pipe 2052; a tee joint is connected to the conduit I 205, one end of the tee joint is fixedly connected and communicated with the round pipe 2051, and a solenoid valve I is installed on the round pipe 2051; the end of the conduit I 205 away from the round pipe 2051 is fixedly connected and communicated with the tee pipe 2052, and a solenoid valve II is installed on the tee pipe 2052.

[0029] It also includes a fixing bracket II 2053, a cylinder 2054, a sealing block 2055, an elastic member II 2056 and a corrugated section 2057; a fixing bracket II 2053 is fixedly connected to the conduit I 205; a cylinder 2054 is fixedly connected to the fixing bracket II 2053; a sealing block 2055 is slidably connected to the inside of the cylinder 2054; two elastic members II 2056 are fixedly connected between the sealing block 2055 and the cylinder 2054, and the elastic member II 2056 is a spring; a telescopic corrugated section 2057 is provided on the conduit I 205.

[0030] The sealing block 2055 is made of rubber and is used to ensure the airtightness between the plastic suction part 3 and the upper cover 31.

[0031] The driving assembly includes a support frame 201 and an electric actuator 202; two support frames 201 are fixedly connected to the upper surface of the mounting plate 1; an electric actuator 202 is fixedly connected to the upper part of each support frame 201. The electric actuator 202 is an electric push rod, and the telescopic part of each electric actuator 202 is fixedly connected to a cross plate 203.

[0032] The plastic suction part 3 is used in conjunction with an upper cover 31, and air holes 32 are provided on the upper cover 31. During actual use, when the plastic suction part 3 contains food or items that need to be exhausted, the air holes 32 on the upper cover 31 remain in a ventilated state. After the ventilation is completed, the air holes 32 are plugged with plugs used in conjunction with the upper cover 31, so as to achieve airtight storage.

[0033] Pre-connect the peripheral pump to one of the air inlets of the three-way pipe 2052, and connect the peripheral water pump to the round pipe 2051. Then, manually cover the upper cover 31 on the plastic suction part 3, and pull out the plug at the air hole 32 to keep the air hole 32 in a ventilated state. Next, place the plastic suction part 3 and the upper cover 31 into the outer housing 208, and jointly limit the plastic suction part 3 through the bottom plate 2081 and the limit frame 2083. The bottom plate 2081 and the limit frame 2083 correspond to the shape of the bottom of the plastic suction part 3. And at this time, when performing the airtightness detection on the plastic suction part 3, no items are loaded inside the plastic suction part 3. Then, control the two electric actuators 202 to start and drive the corresponding cross plate 203 to move downward respectively. The downward movement of the two cross plates 203 drives the fixed plate 204 to move downward, and the movement of the fixed plate 204 drives the cover plate 206 to move downward, so that the cover plate 206 covers the outer housing 208, thereby forming a sealed space inside the outer housing 208. At the same time, the movement of one of the cross plates 203 drives the conduit I 205 to move downward, so that the lower end of the conduit I 205 moves and inserts into the air hole 32 of the upper cover 31. Then, control the solenoid valve II on the three-way pipe 2052 to open, and the solenoid valve I on the round pipe 2051 is in a closed state. Then, control the peripheral pump to start and input normal temperature gas into the three-way pipe 2052. Then, the gas flows along the three-way pipe 2052, the conduit I 205 and the air hole 32 into the plastic suction part 3, and continuously inputs gas into the plastic suction part 3 to make the air pressure in the plastic suction part 3 reach the preset value. If the plastic suction part 3 has a gas leakage situation, the gas will flow into the chamber between the plastic suction part 3 and the outer housing 208 and flow out through the conduit II 209. And the flowing-out gas will flow through the gas flow sensor 210, and then the gas is detected through the operation of the gas flow sensor 210, so as to determine that the airtightness of the plastic suction part 3 does not meet the standard. And when inflating the plastic suction part 3, the gas may not leak from the seal between the plastic suction part 3 and the upper cover 31. It is also possible that because the inner wall of the plastic suction part 3 is too thin, when pressurizing the plastic suction part 3, the plastic suction part 3 breaks, resulting in gas leakage. And the fragments generated after the plastic suction part 3 breaks are collected through the filter screen on the limit frame 2083; It should be noted that when the gas flow sensor 210 detects a small amount of gas discharged, it may be because when the gas is input into the plastic suction part 3, the plastic suction part 3 deforms and expands under the influence of air pressure, and then squeezes the chamber between the plastic suction part 3 and the outer housing 208, so that the air in the chamber between the plastic suction part 3 and the outer housing 208 is discharged. Therefore, it is necessary to continuously input gas into the plastic suction part 3. If the gas is continuously discharged and flows through the gas flow sensor 210, it means that the airtightness of the plastic suction part 3 does not meet the standard. If after the gas flow sensor 210 detects a small amount of gas discharged, the gas no longer continues to be discharged, it means that the airtightness of the plastic suction part 3 meets the production standard, thus realizing the airtightness detection of the plastic suction part 3.

[0034] Moreover, since the bottom plate 2081 and the limit frame 2083 jointly limit the plastic suction piece 3, a chamber is formed jointly by the bottom plate 2081, the limit frame 2083 and the lower part of the plastic suction piece 3. When there is a leak at the accommodation chamber of the plastic suction piece 3, gas cannot be discharged through the seal between the plastic suction piece 3 and the upper cover 31, which will easily affect the accuracy of detection. The gas is diverted through several through holes on the side wall of the bottom plate 2081. When there is a leak at the accommodation chamber of the plastic suction piece 3, the gas can flow out through several through holes on the side wall of the bottom plate 2081 and flow into the chamber between the plastic suction piece 3 and the outer housing 208, and finally flow to the gas flow sensor 210 for detection by the gas flow sensor 210, thus avoiding the problem that the inability to discharge gas affects the accuracy of detection.

[0035] In addition, during the actual use of the plastic suction piece 3, it will hold foods or items at different temperatures, or the plastic suction piece 3 will be used in different temperature environments, which will easily cause the plastic suction piece 3 to expand and contract thermally, resulting in the influence on the sealing structure of the plastic suction piece 3, thus affecting the sealing performance of the plastic suction piece 3 during actual use. However, the prior art does not detect the airtightness of the plastic suction piece 3 in different temperature environments, which has great limitations. To solve the above problems, control the external pump to first input hot air into one air inlet of the tee 2052 and perform the airtightness detection on the plastic suction piece 3 in the same way as above. If there is no gas leakage in the plastic suction piece 3, then control the external pump to input cold air into the other air inlet of the tee 2052 and perform the airtightness detection on the plastic suction piece 3 again, so as to know the airtightness of the plastic suction piece 3 when it is used in different temperature environments, thereby improving the accuracy of the airtightness detection of the plastic suction piece 3.

[0036] It should be noted that, to further improve the accuracy of the airtightness detection of the plastic suction piece 3, when the conduit I 205 moves downward and inserts into the air hole 32, the movement of the conduit I 205 drives the movement of the fixing frame II 2053, the movement of the fixing frame II 2053 drives the movement of the cylinder 2054, and the movement of the cylinder 2054 drives the movement of the sealing block 2055. As a result, the sealing block 2055 abuts against the upper cover 31, and due to the elastic force generated by the two elastic members II 2056, the sealing block 2055 always abuts against the upper cover 31, so as to seal the edge of the air hole 32 through the sealing block 2055, thus avoiding the problem that gas flows out from the edge of the air hole 32 and reduces the detection accuracy when gas is input into the plastic suction piece 3.

[0037] In addition, during the actual use of the plastic suction part 3, it will be loaded with food or items of rated mass, and after the plastic suction part 3 is loaded with food or items, it will be transported or stacked. During transportation, the plastic suction parts 3 will be stacked, which may cause the plastic suction part 3 to be squeezed and vibrated during transportation, thus easily damaging the sealing structure of the plastic suction part 3 and affecting the sealing performance of the plastic suction part 3; To more comprehensively detect the airtightness of the plastic suction part 3, close the solenoid valve II on the three-way pipe 2052, open the solenoid valve I on the round pipe 2051, and then control the external water pump to start operating to input water into the round pipe 2051. Then, the water will flow along the round pipe 2051, the conduit I 205, and the air holes 32 into the plastic suction part 3. At this time, the water will compress the space inside the plastic suction part 3. Then, control the two electric actuators 202 to start and each drive a corresponding cross plate 203 to move upward, thereby driving all the connected components to move, so that the lower end of the conduit I 205 is exposed from the upper cover 31, that is, the end of the conduit I 205 close to the outer housing 208 is exposed from the upper cover 31. Since the end of the conduit I 205 close to the outer housing 208 is set to be inverted conical, the air in the air hole 32 can be discharged through the air between the lower end of the conduit I 205 and the air hole 32. At the same time, the conduit I 205 continuously conveys water into the plastic suction part 3. After the water volume in the plastic suction part 3 reaches the preset value, control the two electric actuators 202 to start and each drive a corresponding cross plate 203 to move downward, thereby driving all the connected components to move, so that the lower end of the conduit I 205 is inserted into the air hole 32, thus forming a sealed space inside the plastic suction part 3 again, and making the plastic suction part 3 filled with water, simulating the state of the plastic suction part 3 when it is loaded with food or items of rated mass; Next, control the vibration motor 305 to start. The operation of the vibration motor 305 generates vibrations that drive the chassis 304 to move. The movement of the chassis 304 drives the movement of the bottom plate 2081, thereby causing the sealing member 2082 to undergo adaptive deformation. After the sealing member 2082 deforms to the limit, the sealing member 2082 will transmit the vibration to the outer housing 208, thereby causing the outer housing 208 to move. The movement of the outer housing 208 drives the support plate 207 to move up and down along all the slide rods 302, thereby causing all the elastic members I 303 to undergo adaptive deformation, so that the plastic suction part 3 vibrates. When the plastic suction part 3 vibrates, the elastic member II 2056 and the corrugated section 2057 will both undergo adaptive deformation, so that the lower end of the conduit I 205 is always located inside the plastic suction part 3, and the sealing block 2055 always abuts against the upper cover 31, so that the plastic suction part 3 is in a sealed state during vibration. When the plastic suction part 3 vibrates, the water inside the plastic suction part 3 will impact the side wall of the plastic suction part 3 and the sealing part between the plastic suction part 3 and the upper cover 31. When the operation of the vibration motor 305 reaches the predetermined duration, control the vibration motor 305 to stop operating, then control the solenoid valve I on all the diversion pipes 307 to open, and control the two electric actuators 202 to start and drive the corresponding cross plate 203 to move upward, thereby driving the movement of all the connected components, so that the cover plate 206 is separated from the outer housing 208, and then manually observe whether there is water leakage on the outer wall of the plastic suction part 3. If there is a large amount of water leakage, the water will flow into the bottom plate 2081 and flow into the porous housing 306. At this time, the buoyancy of the water causes the float 3061 to move upward, so that the float 3061 no longer blocks the diversion pipe 307, so that the water flows out through the diversion pipe 307, thereby knowing the sealing performance of the plastic suction part 3 after vibration when it is filled with food or items of the rated mass, so as to realize a more comprehensive airtightness detection of the plastic suction part 3.

[0038] It should be noted that when performing the airtightness detection on the plastic suction part 3, due to its own gravity, the float 3061 will always be located above the diversion pipe 307 and block the diversion pipe 307. If the gas inside the plastic suction part 3 leaks and flows into the bottom plate 2081, the gas will exert a downward pressure on the float 3061 and will not cause the float 3061 to move upward, thus avoiding the problem that the gas flows out through the diversion pipe 307 during the airtightness detection of the plastic suction part 3 and affecting the accuracy of the detection.

[0039] Embodiment 2: On the basis of Embodiment 1, according to Figure 9As shown, it further includes a limiting system; the limiting system is connected to the outer housing 208; the limiting system includes an airbag 401, an air pump 402 and an air tube 403; the airbag 401 is fixedly connected to the inner side of the outer housing 208; the air pump 402 is installed on the support plate 207; the air outlet of the air pump 402 is fixedly connected and communicated with the air tube 403; the air tube 403 is fixedly connected to the outer housing 208; the air tube 403 is fixedly connected and communicated with the airbag 401.

[0040] When performing airtightness detection on the plastic suction part 3, in order to facilitate the plastic suction part 3 to quickly align with the bottom plate 2081 and the limiting frame 2083, the air pump 402 is controlled to operate to convey air into the air tube 403, and the gas enters the airbag 401 through the air tube 403, and causes the airbag 401 to expand, as Figure 9 shown. Then, when the plastic suction part 3 is placed into the outer housing 208, the expanded airbag 401 limits the plastic suction part 3, so that the plastic suction part 3 can quickly align with the bottom plate 2081 and the limiting frame 2083, and the bottom plate 2081 and the limiting frame 2083 limit the plastic suction part 3, thereby improving the detection efficiency of the plastic suction part 3.

[0041] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the purpose of the present invention.

Claims

1. A device for detecting air tightness of blister products, comprising a mounting plate (1) and a side guard plate (2); the side guard plate (2) is mounted on the mounting plate (1); the device is characterized in that: It also includes a driving assembly, a transverse plate (203), a fixing plate (204), a conduit I (205), a cover plate (206), a vibration assembly, a support plate (207), an outer shell (208), a conduit II (209) and a gas flow sensor (210); the driving assembly is mounted on the mounting plate (1); the driving assembly is connected to at least two transverse plates (203), and the driving assembly is used to drive all the transverse plates (203) to move; all the transverse plates (203) are fixedly connected to a fixing plate (204); one of the A conduit I (205) is fixedly connected to a fixing plate (204); a cover plate (206) is fixedly connected to the fixing plate (204); a vibration component for vibrating the blister (3) is connected to the mounting plate (1); a support plate (207) is connected to the vibration component; an outer shell (208) is fixedly connected to the support plate (207); the outer shell (208) is connected to the vibration component; a conduit II (209) is connected to the outer shell (208); and a gas flow sensor (210) is installed on the outer shell (208).

2. The air tightness detection device for blister products according to claim 1 is characterized in that: One end of the conduit I (205) close to the outer shell (208) is configured to be in an inverted cone shape.

3. The air tightness detection device for blister products according to claim 1, characterized in that: A sealing ring is provided on one side of the cover plate (206) close to the outer shell (208), and a groove corresponding to the sealing ring on the cover plate (206) is provided on the outer shell (208).

4. The air tightness detection device for blister products according to claim 1, characterized in that: The vibration assembly comprises a bottom plate (2081), a sealing member (2082), a limiting frame (2083), a fixing frame I (301), a sliding rod (302), an elastic member I (303), a bottom frame (304) and a vibration motor (305); the outer shell (208) is connected with a sealing member (2082), and the sealing member (2082) is made of elastic rubber material; the bottom plate (2081) is fixedly connected to the sealing member (2082), and a plurality of through holes are formed on the side wall of the bottom plate (2081); the bottom plate (2081) is fixedly connected with a limiting frame (2083), and a filter is installed on the limiting frame (2083). The invention relates to a net; at least two fixing frames I (301) are fixedly connected to the mounting plate (1); at least two slide bars (302) are slidably connected to each fixing frame I (301); all the slide bars (302) are slidably connected to the support plate (207); an elastic member I (303) is sleeved on the outer side of each slide bar (302); one end of the elastic member I (303) is fixedly connected to the fixing frame I (301), and the other end of the fixing frame I (301) is fixedly connected to the support plate (207); a bottom frame (304) is fixedly connected to the lower surface of the bottom plate (2081); and a vibration motor (305) is installed on the bottom frame (304).

5. A blister product air tightness detection device according to any one of claims 1 to 4, characterized in that: The invention also comprises a porous cover shell (306), a floating ball (3061) and a flow guide tube (307); the porous cover shell (306) is fixedly connected to the bottom plate (2081), and a wooden floating ball (3061) is arranged inside the porous cover shell (306); the flow guide tube (307) is on the bottom plate (2081), and the upper part of the flow guide tube (307) is in contact with the floating ball (3061), and the flow guide tube (307) is blocked by the floating ball (3061).

6. The air tightness detection device for blister products according to claim 5, characterized in that: An inverted cone-shaped recess is provided at the bottom of the bottom plate (2081) near the flow guide pipe (307).

7. The air tightness detection device for blister products according to claim 6, characterized in that: It also comprises a round tube (2051) and a three-way tube (2052); a three-way joint is connected to the conduit I (205), one end of the three-way joint is connected to the round tube (2051), and a solenoid valve I is installed on the round tube (2051); an end of the conduit I (205) away from the round tube (2051) is connected to the three-way tube (2052), and a solenoid valve II is installed on the three-way tube (2052).

8. The air tightness detection device for blister products according to claim 7, characterized in that: The invention also comprises a fixing frame II (2053), a cylinder (2054), a sealing block (2055), an elastic member II (2056) and a corrugated section (2057); the fixing frame II (2053) is fixedly connected to the conduit I (205); the cylinder (2054) is fixedly connected to the fixing frame II (2053); the sealing block (2055) is slidably connected to the cylinder (2054); at least two elastic members II (2056) are fixedly connected between the sealing block (2055) and the cylinder (2054); and a retractable corrugated section (2057) is provided on the conduit I (205).

9. The air tightness detection device for blister products according to claim 8, characterized in that: The sealing block (2055) is made of rubber.

10. The air tightness detection device for blister products according to claim 9, characterized in that: The device also includes a limiting system; the limiting system is connected to the outer shell (208); the limiting system includes an airbag (401), an air pump (402) and an air pipe (403); the airbag (401) is fixedly connected to the outer shell (208); the air pump (402) is installed on the support plate (207); the air outlet of the air pump (402) is connected to the air pipe (403); the air pipe (403) is fixedly connected to the outer shell (208); and the air pipe (403) is fixedly connected to and communicates with the airbag (401).

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