Packaging bag sealing performance testing device

Abstract

The present invention relates to the technical field of sealing performance detection, and in particular to a packaging bag sealing performance detection device; comprising a base; a detection mechanism is arranged at the upper end of the base, and a lifting mechanism is also arranged at the upper end of the base and is located on the right side of the detection mechanism; the present invention places a sealing bag on an external conveyor line into a liquid in a sealing cylinder by driving a suction cup at a high frequency of the lifting mechanism, and seals the sealing cylinder through a sealing cover, and then detects the sealing performance of the sealing bag, so as to timely find and deal with unqualified sealing bags, and the sealing cover is pushed to move by a driving part, so as to realize automatic adsorption, movement and detection of the sealing bag, thereby improving the detection efficiency; and the sealing bag that has passed the detection can be dried by a drying part to effectively remove moisture from the packaging bag, so as to prevent the product from being moldy, deteriorating, etc. due to moisture during storage and transportation, thereby improving the overall quality of the product.

Description

Technical Field

[0001] The present invention relates to the technical field of sealing performance detection, and in particular to a packaging bag sealing performance detection device. Background Art

[0002] The purpose of testing the sealing performance of food packaging bags is to ensure the quality of food. Packaging bags with good sealing performance can effectively isolate the outside air, oxygen and microorganisms, thereby ensuring that food is not contaminated and deteriorated during storage and transportation. The existing method of testing the sealing performance of sealed bags is to extract multiple sealed bags from the production line end at regular intervals, and then put the closed sealed bags into a sealed container filled with liquid, and then extract the air in the sealed container to make the inside of the sealed container in a relative vacuum state, and observe whether there are bubbles at the sealing position of the sealed bag to judge the sealing performance of the sealed bag.

[0003] The current sealing performance testing process for sealed bags has the following problems: 1. The existing testing requires extracting multiple sealed bags from the production line at regular intervals and then testing them one by one. This testing method has a long testing process and low efficiency. In addition, samples are manually drawn for testing, and the testing frequency is not high enough to detect sealing problems of sealed bags in production in a timely manner.

[0004] 2. Qualified sealed bags are usually simply wiped and put back into the production line or storage area. There is a lack of subsequent specific processing procedures, which causes the qualified sealed bags to be affected by adverse factors such as contamination and moisture during storage or transportation, thus affecting their quality and performance. Summary of the invention

[0005] In view of the above problems, an embodiment of the present application provides a packaging bag sealing performance detection device to solve the above-mentioned technical problems.

[0006] In order to achieve the above-mentioned purpose, the embodiment of the present application provides the following technical solution: a packaging bag sealing performance detection device, comprising a base; a detection mechanism is arranged at the upper end of the base, and a lifting mechanism is also arranged at the upper end of the base and is located on the right side of the detection mechanism.

[0007] As a preferred embodiment, the detection mechanism includes a sealing cylinder, a sealing cylinder is installed on the upper end of the base, a sealing cover is arranged on the upper end of the sealing cylinder, a pressure relief valve is arranged on the sealing cover, a sealing gasket is arranged on the end surface where the sealing cover and the sealing cylinder are in contact, an adsorption portion for adsorbing the packaging bag is arranged in the middle of the sealing cover, an exhaust hole is opened on the sealing cover at the rear side of the adsorption portion, and a drying portion for drying the packaging bag is also arranged on the sealing cover.

[0008] As a preferred solution, the lifting mechanism includes a support plate, the upper end of the base is equipped with a support plate located on the right side of the sealing cylinder, and the support plate is an inverted structure, and a driving part for driving the sealing cover to move up and down and rotate is arranged on the support plate.

[0009] As a preferred embodiment, the adsorption part includes a straw, a straw is slidably penetrated through the sealing cover, a round shell is rotatably mounted on the lower end of the straw, a plurality of suction cups are connected to the lower end of the round shell, a T-tube located above the sealing cover is fixedly sleeved on the straw, a compression spring is installed between the horizontal section of the T-tube and the sealing cover, a sealing ring is installed at the lower end of the vertical section of the T-tube, and a rotating part for driving the round shell to rotate is installed on the sealing cover.

[0010] As a preferred embodiment, the drying section includes an air inlet hole, the sealing cover is provided with an air inlet hole located in front of the straw, the air inlet hole at the lower end of the sealing cover is connected to a nozzle, the sealing cover is provided with an air inlet pipe connected to the air inlet hole, and the air inlet pipe is provided with a heating element for heating the gas.

[0011] As a preferred embodiment, the heating element includes a rectangular block, a rectangular block is installed on the upper end of the support plate, two channels are symmetrically opened on the rectangular block horizontally passing through the rectangular block, an electric heating wire is installed in the channel located on the rear side, and sealing valves are installed at the two ports of the two channels. An air guide shell is provided on the left and right sides of the rectangular block, and the two ports of the two channels on the same side are located inside the corresponding air guide shell. The air guide shell on the left is connected to the air intake pipe, and a pulling member is provided on the rectangular block for alternately opening the two channels to connect with the air guide shell on the right.

[0012] As a preferred embodiment, the lifting member includes a sealing plate, and a sealing plate is slidably installed at a position corresponding to the two channels on the right side of the rectangular block, and the upper end of the sealing plate slides through the corresponding air guide shell, and a fixed seat is installed at the upper end of the rectangular block, and a circular groove is opened in the fixed seat, and a rotating shaft is rotatably installed in the circular groove, and an actuator for driving the rotating shaft to rotate is provided in the circular groove, and an incomplete gear is installed after the right end of the rotating shaft rotates through the fixed seat, and a No. 1 tooth plate is provided on the rear side of the incomplete gear, and the No. 1 tooth plate is fixedly connected to the sealing plate on the rear side, an L-shaped plate is installed on the upper end of the air guide shell on the right side, and a tension spring is installed between the horizontal section of the L-shaped plate and the sealing plate on the rear side, and a linkage component for driving the two sealing plates to move toward each other is provided between the two sealing plates.

[0013] As a preferred embodiment, the rotating part includes a ring block, the lower end of the sealing cover is coaxially mounted with the ring block, the lower end surface of the ring block is provided with a ring groove, a No. 1 turbine is rotatably mounted in the ring groove, a conduit connected to the ring groove is mounted on the outer wall of the ring block, the other end of the conduit passes through the sealing cover, an air vent pipe connected to the ring groove is also mounted on the outer wall of the ring block, and two spring telescopic rods are symmetrically mounted between the lower end of the No. 1 turbine and the circular shell.

[0014] As a preferred embodiment, the driving part includes an electric telescopic rod, and the electric telescopic rod is installed at the lower end of the horizontal section of the support plate. The telescopic section of the electric telescopic rod slides through the support plate and then rotatably installs a supporting plate, and the supporting plate is fixedly connected to the T-tube, and a rotating part for driving the supporting plate to rotate is provided on the support plate.

[0015] As a preferred embodiment, the rotating member includes a shaft sleeve, and the support plate is provided with a shaft sleeve that rotates coaxially with the telescopic section of the electric telescopic rod, and the telescopic section of the electric telescopic rod slides through the shaft sleeve, and a driven gear is installed on the shaft sleeve. A servo motor located on the right side of the electric telescopic rod is installed on the lower end surface of the horizontal section of the support plate, and a driving gear that meshes with the driven gear is installed after the output shaft of the servo motor rotates through the support plate, and two guide columns that slide through the support plate are symmetrically installed on the upper end surface of the driven gear.

[0016] As a preferred embodiment, the actuator includes a No. 2 turbine, and the No. 2 turbine located in a circular groove is installed on the rotating shaft, a No. 1 pipe connected to the circular groove is installed on the upper front side of the fixed seat, and a No. 2 pipe connected to the circular groove is installed on the lower rear side of the fixed seat, and the other end of the No. 2 pipe is connected to the air guide shell on the right side.

[0017] As a preferred embodiment, the linkage assembly includes a bearing plate, and a spur gear located between two sealing plates is rotatably installed on the upper end of the air guide shell on the right side through the bearing plate, and a No. 2 gear plate meshing with the spur gear is installed on the opposite surfaces of the two sealing plates.

[0018] The above one or more technical solutions in the embodiments of the present invention have at least one of the following technical effects: 1. The present invention drives the suction cup on the external conveyor line at a high frequency through the lifting mechanism to place the sealed bag into the liquid of the sealing cylinder, and seals the sealing cylinder through the sealing cover, and then detects the sealing performance of the sealed bag, so as to timely find and deal with unqualified sealed bags, and the sealing cover is pushed to move by the driving part to realize automatic adsorption, movement and detection of the sealed bag, thereby improving the detection efficiency; and the sealed bag that has passed the inspection can be dried by the drying part to effectively remove moisture from the packaging bag, thereby preventing the product from mildew, deterioration and other problems caused by moisture during storage and transportation, thereby improving the overall quality of the product.

[0019] 2. The drying section provided in the present invention introduces gas into the sealing cylinder through the air inlet pipe, so that the sealed bag after inspection slowly returns to its original state. At the same time, the gas is guided to blow toward the sealed bag after inspection through the air nozzle to dry the sealed bag, and the gas is heated by the heating element to improve the efficiency of drying the sealed bag.

[0020] 3. The lifting member provided in the present invention drives the incomplete gear to rotate through the No. 2 turbine and resets the tension spring, so that the two sealing plates move down alternately, so that the temperature of the gas blown to the sealed bags that have passed the inspection changes cyclically, while ensuring the efficiency of drying the sealed bags, avoiding deformation and damage of the sealed bags caused by long-term action of high-temperature gas.

[0021] Fourth, the rotating part provided in the present invention drives the sealed bags that have passed the inspection to rotate through the No. 1 turbine, so that the sealed bags are evenly dried by wind, thereby further improving the drying efficiency of the packaging bags. In addition, the rotation of the No. 1 turbine and the No. 2 turbine are driven by gas in advance, thereby making full use of the energy of the gas, reducing energy consumption, and further improving the energy utilization efficiency of the entire device.

[0022] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0024] Figure 1 This is a schematic diagram of the first perspective structure of this application.

[0025] Figure 2 for Figure 1 Schematic diagram of the second perspective structure.

[0026] Figure 3 This is a cross-sectional view of the adsorption portion of the present application.

[0027] Figure 4 This is a schematic diagram of the rotating part structure of this application.

[0028] Figure 5 This is a schematic diagram of the adsorption part structure of the present application.

[0029] Figure 6 for Figure 5 A magnified view of the structure in the middle.

[0030] Figure 7 This is a cross-sectional view of the heating element of the present application.

[0031] Figure numerals: 1, base; 2, detection mechanism; 20, sealing cylinder; 21, sealing cover; 22, pressure relief valve; 23, air extraction hole; 24, adsorption part; 240, suction tube; 241, round shell; 242, suction cup; 243, T-tube; 244, compression spring; 245, sealing ring; 246, rotating part; 2460, ring block; 2461, turbine No. 1; 2462, guide tube; 2463, exhaust pipe; 2464, spring telescopic rod; 25, drying part; 250, air nozzle; 251, air inlet pipe; 4, heating element; 40, rectangular block; 41, channel; 42, electric Hot wire; 43, sealing valve; 44, air guide shell; 5, lifting member; 50, sealing plate; 51, fixing seat; 52, rotating shaft; 53, incomplete gear; 54, gear plate No. 1; 55, tension spring; 56, spur gear; 57, gear plate No. 2; 6, actuator; 60, turbine No. 2; 61, pipeline No. 1; 62, pipeline No. 2; 3, lifting mechanism; 30, support plate; 31, driving part; 310, electric telescopic rod; 311, supporting plate; 312, rotating member; 3120, driven gear; 3121, servo motor; 3122, driving gear; 3123, guide column. DETAILED DESCRIPTION

[0032] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0033] like Figure 1 As shown, a packaging bag sealing performance detection device includes a base 1; a detection mechanism 2 is arranged at the upper end of the base 1, and a lifting mechanism 3 located on the right side of the detection mechanism 2 is also arranged at the upper end of the base 1.

[0034] like Figure 1 and Figure 2 As shown, the detection mechanism 2 includes a sealing cylinder 20, the upper end of the base 1 is equipped with the sealing cylinder 20, and the sealing cylinder 20 is made of transparent material, the sealing cylinder 20 is filled with liquid, the upper end of the sealing cylinder 20 is provided with a sealing cover 21, the sealing cover 21 is provided with a pressure relief valve 22, the end surface where the sealing cover 21 and the sealing cylinder 20 are in contact is provided with a sealing gasket, the middle part of the sealing cover 21 is provided with an adsorption portion 24 for adsorbing the packaging bag, the sealing cover 21 is provided with an exhaust hole 23 located at the rear side of the adsorption portion 24, and the sealing cover 21 is also provided with a drying portion 25 for drying the packaging bag.

[0035] like Figure 1 and Figure 2As shown, the lifting mechanism 3 includes a support plate 30. The upper end of the base 1 is provided with a support plate 30 located on the right side of the sealing cylinder 20, and the support plate 30 is an inverted structure. The support plate 30 is provided with a driving part 31 for driving the sealing cover 21 to move up and down and rotate.

[0036] During specific operation, the packaging bag sealing performance detection device is installed on the front side of the external conveyor line. The external conveyor line conveys the packaging bag to move, and the driving unit 31 pushes the sealing cover 21 to move up and away from the sealing cylinder 20 at regular intervals. Then the driving unit 31 drives the sealing cover 21 to rotate backward to the position of the external conveyor line and then moves down to absorb the packaging bag. After that, the driving unit 31 drives the absorbed packaging bag to move into the sealing cylinder 20, and the sealing bag is located in the liquid of the sealing cylinder 20. At the same time, the sealing cover 21 is fitted with the sealing cylinder 20 to seal the sealing cylinder 20, and then the external vacuum pump and the vacuum pump are connected. The air holes 23 are connected to extract the air in the sealing tube 20 to form a relative vacuum environment in the sealing tube 20. Since the sealing tube 20 is made of transparent material, it is possible to directly observe from the outside of the sealing tube 20 whether bubbles are generated in the sealing tube 20 within a certain period of time under this vacuum environment. If bubbles are generated, the sealing performance of the packaging bag is unqualified, otherwise it is qualified. The unqualified packaging bags are removed from the sealing tube 20 by the driving unit 31 for centralized processing, and the qualified packaging bags are first dried by the drying unit 25 and then moved back to the external conveyor line by the driving unit 31.

[0037] like Figure 1 , Figure 3 , Figure 4 and Figure 5 As shown, the adsorption part 24 includes a straw 240, and the sealing cover 21 is slidably penetrated by the straw 240, and the lower end of the straw 240 is rotatably mounted with a round shell 241, and the lower end of the round shell 241 is connected with a plurality of suction cups 242, and the straw 240 is fixedly sleeved with a T-tube 243 located above the sealing cover 21, and a compression spring 244 is installed between the horizontal section of the T-tube 243 and the sealing cover 21, and a sealing ring 245 is installed at the lower end of the vertical section of the T-tube 243, and a rotating member 246 for driving the round shell 241 to rotate is installed on the sealing cover 21.

[0038] like Figure 1 and Figure 2 As shown, the driving part 31 includes an electric telescopic rod 310, and the electric telescopic rod 310 is installed at the lower end of the horizontal section of the support plate 30. The telescopic section of the electric telescopic rod 310 slides through the support plate 30 and then rotates to install a supporting plate 311, and the supporting plate 311 is fixedly connected to the T-tube 243. A rotating part 312 for driving the supporting plate 311 to rotate is provided on the support plate 30.

[0039] like Figure 1 and Figure 2As shown, the rotating member 312 includes a shaft sleeve, and the support plate 30 is provided with a shaft sleeve that rotates coaxially with the telescopic section of the electric telescopic rod 310, and the telescopic section of the electric telescopic rod 310 slides through the shaft sleeve, and a driven gear 3120 is installed on the shaft sleeve. A servo motor 3121 located on the right side of the electric telescopic rod 310 is installed on the lower end surface of the horizontal section of the support plate 30, and a driving gear 3122 meshing with the driven gear 3120 is installed after the output shaft of the servo motor 3121 rotates through the support plate 30, and two guide pillars 3123 that slide through the supporting plate 311 are symmetrically installed on the upper end surface of the driven gear 3120.

[0040] During specific operation, the electric telescopic rod 310 pushes the supporting plate 311 to move upward, and the supporting plate 311 drives the sealing cover 21 to move upward through the compression spring 244, so that the suction cup 242 is completely separated from the sealing cylinder 20, and then the servo motor 3121 drives the driving gear 3122 to rotate, and the driving gear 3122 drives the driven gear 3120 to rotate, and the driven gear 3120 drives the supporting plate 311 to rotate ninety degrees clockwise to the external conveyor line position through the guide column 3123, and then the electric telescopic rod 310 pulls the supporting plate 311 to move downward, so that the suction cup 242 is fitted with one of the packaging bags on the external conveyor line, and then the external No. 1 air pump is connected to the suction pipe 240 through the external air pipe, so that the suction pipe 240 adsorbs the packaging bag through the suction cup 242, and then the electric telescopic rod 310 pushes the supporting plate 311 to move upward again, so that the packaging bag is higher than the upper end of the sealing cylinder 20, and then the servo The motor 3121 drives the supporting plate 311 to rotate counterclockwise 90 degrees to reset. At this time, the packaging bag is located directly above the sealing tube 20. Then the electric telescopic rod 310 pulls the supporting plate 311 downward to move the packaging bag into the sealing tube 20. At this time, the sealing cover 21 is tightly attached to the sealing tube 20 through the sealing gasket. Then, as the electric telescopic rod 310 continues to be pulled, the T-tube 243 and the suction pipe 240 are pushed downward to push the packaging bag below the liquid level of the sealing tube 20. At this time, the sealing ring 245 is tightly attached to the sealing cover 21 to seal the connection between the suction pipe 240 and the sealing cover 21. Then, the external vacuum pump is connected to the exhaust hole 23 to extract the air in the sealing tube 20 to form a relative vacuum state inside it. The packaging bag is in this vacuum state for a specific time, and whether bubbles are generated in the sealing tube 20 is observed to determine whether the sealing performance of the packaging bag is qualified.

[0041] After the inspection is completed, if the packaging bag fails the inspection, the electric telescopic rod 310 pushes the supporting plate 311 upward to make the unqualified packaging bag separate from the sealing cylinder 20, and then the servo motor 3121 drives the unqualified packaging bag to rotate 90 degrees counterclockwise away from the sealing cylinder 20, and the suction cup 242 releases the adsorption of the sealing bag, so that the sealing bag is separated from the suction cup 242 for centralized processing.

[0042] When the sealing performance of the packaging bag is qualified, the electric telescopic rod 310 first pushes the supporting plate 311 upward for a certain distance to reset the compression spring 244. At this time, the sealing cover 21 still maintains contact with the sealing cylinder 20, and the packaging bag moves above the liquid surface. The drying section 25 dries the packaging bag and then moves it back to the external conveyor line through the driving section 31.

[0043] like Figure 1 , Figure 4 and Figure 7 As shown, the drying section 25 includes an air inlet hole, the sealing cover 21 is provided with an air inlet hole located in front of the suction tube 240, the air inlet hole at the lower end of the sealing cover 21 is connected with a nozzle 250, the sealing cover 21 is provided with an air inlet pipe 251 connected with the air inlet hole, and the air inlet pipe 251 is provided with a heating element 4 for heating the gas.

[0044] like Figure 1 , Figure 5 and Figure 7 As shown, the heating element 4 includes a rectangular block 40, and the rectangular block 40 is installed on the upper end of the supporting plate 311. Two channels 41 that horizontally penetrate the rectangular block 40 are symmetrically opened on the rectangular block 40 from front to back. A heating wire 42 is installed in the channel 41 located on the rear side, and sealing valves 43 are installed at both ports of the two channels 41 to ensure that the air inlet pipe 251 is sealed during vacuuming. An air guide shell 44 is provided on the left and right sides of the rectangular block 40, and the two ports of the two channels 41 on the same side are located inside the corresponding air guide shell 44. The air guide shell 44 on the left is connected to the air inlet pipe 251, and a lifting member 5 is provided on the rectangular block 40 for alternately opening the two channels 41 to connect with the air guide shell 44 on the right.

[0045] During specific operation, after the packaging bag moves above the liquid surface, the external No. 2 air pump blows air into the sealing tube 20 through the external No. 1 delivery pipe in sequence through the lifting member 5, the heating member 4, the air inlet pipe 251 and the air nozzle 250, so that the air pressure in the sealing tube 20 is restored and the sealing bag is restored to its original state. In addition, the electric heating wire 42 is energized to heat the passing gas and blow it toward the packaging bag through the air inlet pipe 251 and the air nozzle 250 to dry the packaging bag. The heated gas can improve the drying efficiency of the packaging bag. In the process of the external No. 1 delivery pipe delivering gas to the sealing tube 20, the lifting member 5 will also be driven to alternately open the two channels 41, so that the temperature of the gas blown toward the packaging bag changes cyclically to avoid damage to the packaging bag caused by the long-term action of high-temperature gas.

[0046] like Figure 5 , Figure 6 and Figure 7As shown, the lifting member 5 includes a sealing plate 50, and a sealing plate 50 is slidably installed at a position corresponding to the two channels 41 on the right side of the rectangular block 40, and the upper end of the sealing plate 50 slides through the corresponding air guide shell 44, and a fixing seat 51 is installed on the upper end of the rectangular block 40, and a circular groove is opened in the fixing seat 51, and a rotating shaft 52 is rotatably installed in the circular groove, and an actuator 6 for driving the rotating shaft 52 to rotate is arranged in the circular groove, and an incomplete gear 53 is installed after the right end of the rotating shaft 52 rotates and passes through the fixing seat 51, and a No. 1 tooth plate 54 is arranged on the rear side of the incomplete gear 53, and the No. 1 tooth plate 54 is fixedly connected to the sealing plate 50 on the rear side, and an L-shaped plate is installed on the upper end of the air guide shell 44 on the right side, and a tension spring 55 is installed between the horizontal section of the L-shaped plate and the sealing plate 50 on the rear side, and a linkage component for driving the two sealing plates 50 to move toward each other is arranged between the two sealing plates 50.

[0047] like Figure 5 and Figure 6 As shown, the actuator 6 includes a No. 2 turbine 60, the No. 2 turbine 60 located in a circular groove is installed on the rotating shaft 52, a No. 1 pipe 61 connected to the circular groove is installed on the front upper part of the fixed seat 51, and a No. 2 pipe 62 connected to the circular groove is installed on the rear lower part of the fixed seat 51, and the other end of the No. 2 pipe 62 is connected to the air guide shell 44 on the right side.

[0048] like Figure 6 As shown, the linkage assembly includes a bearing plate, and a spur gear 56 located between two sealing plates 50 is rotatably installed on the upper end of the air guide shell 44 located on the right side through the bearing plate, and a second gear plate 57 meshing with the spur gear 56 is installed on the opposite surfaces of the two sealing plates 50.

[0049] During specific operation, the external No. 1 delivery pipe is connected to the No. 1 pipe 61, and delivers gas to the circular groove to drive the No. 2 turbine 60 to rotate. The gas blown out from the circular groove is blown into the right wind guide shell 44 through the No. 2 pipe 62, and the gas in the right wind guide shell 44 is blown toward the packaging bag through the channel 41, the air inlet pipe 251 and the air nozzle 250; the rotation of the No. 2 turbine 60 drives the incomplete gear 53 to rotate through the rotating shaft 52, and the incomplete gear 53 has a tooth segment that meshes with the No. 1 tooth plate 54, so that the rear sealing plate 50 moves downward, and at the same time the tension spring 55 is stretched, and the rear sealing plate 50 moves the front sealing plate 50 upward through the cooperation of the spur gear 56 and the No. 2 tooth plate 57 , so that the right port of the front channel 41 gradually becomes larger, while the right port of the rear channel 41 gradually becomes smaller, so that the temperature blown to the packaging bag slowly decreases. As the No. 2 turbine 60 rotates, the incomplete gear 53 does not mesh with the No. 1 tooth plate 54. At this time, the sealing plate 50 on the rear side moves up under the action of the tension spring 55, and the sealing plate 50 on the front side moves downward through the cooperation of the spur gear 56 and the No. 2 tooth plate 57, so that the temperature blown to the packaging bag increases. After a certain period of high-temperature drying, the incomplete gear 53 meshes with the No. 1 tooth plate 54 again, so that the temperature of the gas blown to the packaging bag drops again, thereby avoiding the high-temperature gas blowing to the packaging bag for a long time, causing the packaging bag to be deformed and damaged.

[0050] like Figure 2 , Figure 3 and Figure 4 As shown, the rotating member 246 includes a ring block 2460, and the lower end of the sealing cover 21 is coaxially mounted with the ring block 2460, and the lower end surface of the ring block 2460 is provided with an annular groove, and a turbine No. 2461 is rotatably mounted in the annular groove, and the outer wall of the ring block 2460 is provided with a conduit 2462 connected to the annular groove, and the other end of the conduit 2462 passes through the sealing cover 21, and the outer wall of the ring block 2460 is also provided with a vent pipe 2463 connected to the annular groove, and two spring telescopic rods 2464 are symmetrically mounted between the lower end of the turbine No. 1 2461 and the circular shell 241.

[0051] During specific operation, during the drying process of the packaging bags, the external No. 2 air pump is also connected to the conduit 2462 through the external No. 2 delivery pipe, so that the gas blows the No. 1 turbine 2461 to rotate through the conduit 2462. The rotation of the No. 1 turbine 2461 drives the round shell 241 to rotate through the spring telescopic rod 2464, and the round shell 241 drives the adsorbed packaging bags to rotate, so that the packaging bags are evenly blown and dried, so as to further improve the drying efficiency of the packaging bags, and the gas that blows the No. 1 turbine 2461 to rotate will be blown out from the exhaust pipe 2463 and blown to the packaging bags for drying processing.

[0052] After the packaging bag is dried, the driving unit 31 pushes the sealing cover 21 and the dried packaging bag to separate from the sealing cylinder 20, and then rotates the sealing cover 21 and the dried packaging bag clockwise by ninety degrees to the position of the external conveyor line, so that the qualified packaging bag is put back on the external conveyor line for subsequent processing, and then the sealing cover 21 is reset to the initial state, and then the above operation is repeated at intervals to test the sealing performance of the packaging bag.

[0053] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the devices or elements referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention. The directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0054] In addition, the terms "first", "second", "number one", "number two" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second", "number one", "number two" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0055] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "connect", "install", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0056] The embodiments of this specific implementation method are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, all equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A packaging bag sealing performance testing device, comprising a base (1); characterized in that: The upper end of the base (1) is provided with a detection mechanism (2), and the upper end of the base (1) is also provided with a lifting mechanism (3) located on the right side of the detection mechanism (2); wherein: The detection mechanism (2) comprises a sealing cylinder (20), the upper end of the base (1) is provided with a sealing cylinder (20), the upper end of the sealing cylinder (20) is provided with a sealing cover (21), a pressure relief valve (22) is provided on the sealing cover (21), the end surface of the sealing cover (21) in contact with the sealing cylinder (20) is provided with a sealing gasket, a suction portion (24) for adsorbing a packaging bag is provided in the middle of the sealing cover (21), an air extraction hole (23) located at the rear side of the adsorption portion (24) is provided on the sealing cover (21), and a drying portion (25) for drying the packaging bag is also provided on the sealing cover (21), and the drying portion (25) comprises an air inlet pipe (251); The lifting mechanism (3) comprises a support plate (30), the upper end of the base (1) is provided with a support plate (30) located on the right side of the sealing cylinder (20), and the support plate (30) is in an inverted shape. A driving part (31) for driving the sealing cover (21) to move up and down and rotate is arranged on the support plate (30); The adsorption part (24) comprises a suction tube (240), the sealing cover (21) is slidably penetrated by the suction tube (240), the lower end of the suction tube (240) is rotatably mounted with a round shell (241), the lower end of the round shell (241) is connected with a plurality of suction cups (242), a T-shaped tube (243) located above the sealing cover (21) is fixedly sleeved on the suction tube (240), a compression spring (244) is installed between the horizontal section of the T-shaped tube (243) and the sealing cover (21), a sealing ring (245) is installed at the lower end of the vertical section of the T-shaped tube (243), and a rotating member (246) for driving the round shell (241) to rotate is installed on the sealing cover (21); The drying section (25) further comprises an air inlet hole, the sealing cover (21) is provided with an air inlet hole located in front of the suction pipe (240), the air inlet hole at the lower end of the sealing cover (21) is connected to a tuyere (250), the sealing cover (21) is provided with an air inlet pipe (251) connected to the air inlet hole, and the air inlet pipe (251) is provided with a heating element (4) for heating gas; The driving part (31) comprises an electric telescopic rod (310), the electric telescopic rod (310) is installed at the lower end of the horizontal section of the support plate (30), the telescopic section of the electric telescopic rod (310) slides through the support plate (30) and then rotatably installs a supporting plate (311), and the supporting plate (311) is fixedly connected to the T-shaped tube (243), and a rotating member (312) for driving the supporting plate (311) to rotate is provided on the support plate (30); The heating element (4) comprises a rectangular block (40), the upper end of the supporting plate (311) is provided with a rectangular block (40), two channels (41) are symmetrically provided on the rectangular block (40) and pass through the rectangular block (40) horizontally, a heating wire (42) is provided in the channel (41) located at the rear side, and sealing valves (43) are provided at the two ports of the two channels (41), an air guide shell (44) is provided on the left and right sides of the rectangular block (40), the two ports of the two channels (41) located on the same side are located inside the corresponding air guide shell (44), the air guide shell (44) on the left side is connected to the air inlet pipe (251), and a lifting member (5) is provided on the rectangular block (40) for alternately opening the two channels (41) to connect with the air guide shell (44) on the right side.

2. A packaging bag sealing performance testing device according to claim 1, characterized in that: The lifting member (5) includes a sealing plate (50), and a sealing plate (50) is slidably installed at a position corresponding to the two channels (41) on the right side of the rectangular block (40), and the upper end of the sealing plate (50) slides through the corresponding air guide shell (44), and a fixing seat (51) is installed at the upper end of the rectangular block (40), and a circular groove is provided in the fixing seat (51), and a rotating shaft (52) is rotatably installed in the circular groove, and an actuator (6) for driving the rotating shaft (52) to rotate is provided in the circular groove, and the rotating shaft ( The right end of the air guide shell (44) is rotated to pass through the fixed seat (51) and then an incomplete gear (53) is installed. A first tooth plate (54) is arranged on the rear side of the incomplete gear (53). The first tooth plate (54) is fixedly connected to the sealing plate (50) on the rear side. An L-shaped plate is installed on the upper end of the right air guide shell (44). A tension spring (55) is installed between the horizontal section of the L-shaped plate and the sealing plate (50) on the rear side. A linkage assembly for driving the two sealing plates (50) to move toward each other is arranged between the two sealing plates (50).

3. A packaging bag sealing performance testing device according to claim 1, characterized in that: The rotating member (246) comprises a ring block (2460), the lower end of the sealing cover (21) is coaxially mounted with the ring block (2460), the lower end surface of the ring block (2460) is provided with a ring groove, a turbine (2461) is rotatably mounted in the ring groove, a conduit (2462) connected to the ring groove is mounted on the outer wall of the ring block (2460), the other end of the conduit (2462) passes through the sealing cover (21), an air release pipe (2463) connected to the ring groove is also mounted on the outer wall of the ring block (2460), and two spring telescopic rods (2464) are symmetrically mounted between the lower end of the turbine (2461) and the round shell (241).

4. A packaging bag sealing performance testing device according to claim 1, characterized in that: The rotating member (312) comprises a shaft sleeve, the support plate (30) is coaxially rotatably mounted with the shaft sleeve and the telescopic section of the electric telescopic rod (310), and the telescopic section of the electric telescopic rod (310) slides through the shaft sleeve, a driven gear (3120) is mounted on the shaft sleeve, a servo motor (3121) located on the right side of the electric telescopic rod (310) is mounted on the lower end surface of the horizontal section of the support plate (30), a driving gear (3122) meshing with the driven gear (3120) is mounted after the output shaft of the servo motor (3121 rotates through the support plate (30), and two guide pillars (3123) that slide through the support plate (311) are symmetrically mounted on the upper end surface of the driven gear (3120).

5. The packaging bag sealing performance testing device according to claim 2, characterized in that: The actuator (6) includes a No. 2 turbine (60), the No. 2 turbine (60) located in a circular groove is installed on the rotating shaft (52), a No. 1 pipe (61) connected to the circular groove is installed on the front upper part of the fixed seat (51), and a No. 2 pipe (62) connected to the circular groove is installed on the rear lower part of the fixed seat (51), and the other end of the No. 2 pipe (62) is connected to the air guide shell (44) on the right side.

6. A packaging bag sealing performance testing device according to claim 2, characterized in that: The linkage assembly comprises a bearing plate, and a spur gear (56) located between two sealing plates (50) is rotatably mounted on the upper end of the air guide shell (44) located on the right side through the bearing plate, and a second gear plate (57) meshing with the spur gear (56) is mounted on the opposite surfaces of the two sealing plates (50).

Images