Sealing performance detection device for prefabricated vegetable packaging bag

Abstract

The utility model relates to the technical field of packaging bags, and provides a sealing performance detection device for a prefabricated vegetable packaging bag, which comprises a detection water tank and two fixing plates, and the two fixing plates are positioned on one side of the detection water tank; a packaging bag is put into a detection water tank, at the moment, whether bubbles are generated in water in the detection water tank or not is observed, if bubbles are generated, it is proved that the sealing performance of the packaging bag is unqualified, and if no bubbles are generated, it is proved that the sealing performance of the packaging bag is qualified, a first motor can be started to drive a transmission roller to rotate; the conveying rollers drive the conveying belt to rotate, the conveying belt is in linkage with the remaining conveying rollers to rotate, qualified packaging bags are conveyed, an air pump is started during conveying, gas generated by the air pump is conveyed into a heating box through a pipeline, and the gas is heated through a heating wire; and the heated gas is conveyed into the sealing pipe through the gas pipe and is sprayed out through the spray head, and the detected packaging bag is dried.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging bags, and in particular to a sealing detection device for a pre-prepared food packaging bag. Background Art

[0002] Flexible packaging generally refers to bags, boxes, sleeves, packages, etc. made of paper, aluminum foil, fiber, plastic film and their composites, which are used to package and preserve products. For example, in flexible packaged food and medicine, whether the flexible package leaks, that is, the sealing of the flexible package directly affects the shelf life of food and medicine. In particular, some food flexible packages contain deoxidizers as food preservatives. Once the flexible package leaks, the deoxidizer will become ineffective and the food will easily deteriorate.

[0003] The Chinese authorized patent with application number CN202221416353.6 discloses a device for quickly detecting the sealing of flexible packaging bags, which belongs to the technical field of flexible packaging bag production equipment. The device for quickly detecting the sealing of flexible packaging bags includes a water tank, and the bottom of both sides of the water tank are provided with a slide groove, and the inside of the slide groove is slidably connected with a bottom block, and the top of the bottom block is fixedly connected with a first hydraulic telescopic rod, and the top of the first hydraulic telescopic rod is fixedly connected with a cover plate, and the bottom of the cover plate is fixedly connected with multiple fixed racks. The device for quickly detecting the sealing of flexible packaging bags, through the cooperation between the water tank, the cover plate, the vacuum suction pipe, the fixed rack, the pressing plate and the placing plate, adopts the method of immersing the packaging bag in a closed water tank filled with water, vacuumizing the water tank, and observing whether there are bubbles in the packaging bag to detect the packaging bag. The structure is simple, which is convenient for personnel to operate, and reduces the detection cost. At the same time, multiple packaging bags can be detected each time, and the detection speed is fast, which improves the detection efficiency.

[0004] However, in the implementation of relevant technologies, it was found that the above-mentioned device for quickly detecting the sealing of soft packaging bags has the following problems: after the sealing test of the packaging bag is completed, some water will remain on the surface of the packaging bag, but the above-mentioned technical solution is still difficult to dry the water on the packaging bag, which makes subsequent processing inconvenient. Therefore, a sealing test device for pre-prepared food packaging bags is proposed. Utility Model Content

[0005] The utility model provides a sealing detection device for a pre-prepared food packaging bag, which solves the problem in the related art that it is difficult to dry the water on the packaging bag.

[0006] The technical solution of the utility model is as follows: A sealing detection device for a pre-prepared food packaging bag comprises: a detection water tank and two fixed plates, the two fixed plates are located on one side of the detection water tank, the opposite sides of the two fixed plates are connected to a plurality of transmission rollers for common rotation, the surfaces of the plurality of transmission rollers are connected to a conveyor belt in a tensioned manner, a first motor is fixedly installed on one side of one of the two fixed plates, the output end of the first motor is fixedly connected to one of the plurality of transmission rollers, a shell is fixedly installed on the top of the two fixed plates, a sealing tube is fixedly installed on the inner wall of the shell, a plurality of nozzles are fixedly installed on the outer wall of the sealing tube, a heating box is fixedly installed on the top of the shell, a plurality of heating wires are arranged inside the heating box, an air pipe is fixedly installed on one side of the heating box, one end of the air pipe passes through the shell and is connected to the sealing pipe, an air pump is fixedly installed on the top of the shell, the air pump is located on one side of the heating box, and the output end of the air pump extends to the inside of the heating box through a pipeline.

[0007] Preferably, slide grooves are provided on both sides of the inner wall of the detection water tank, and the first filter screen is slidably connected inside the slide groove. Two guide rods are fixedly installed on the inner bottom wall of the detection water tank, and the two guide rods are slidably connected to the first filter screen. Springs are fixedly installed at the four corners of the top of the first filter screen.

[0008] Preferably, the top ends of the two guide rods are fixedly connected with a support plate, a second filter screen is arranged inside the detection water tank, the second filter screen is slidably connected to the two guide rods, and the top end of the spring is connected to the second filter screen.

[0009] Preferably, two mounting plates are fixedly mounted on the top of the support plate, and opposite sides of the two mounting plates are rotatably connected with retractable rollers.

[0010] Preferably, a cable is wound around the outer side wall of the retractable roller, and one end of the cable is connected to the first filter screen via a through hole.

[0011] Preferably, a second motor is fixedly mounted on one side of one of the two mounting plates, and an output end of the second motor movably passes through one mounting plate and is connected to the retractable roller.

[0012] Preferably, an L-shaped plate is fixedly mounted on one side of the detection water tank, two electric telescopic rods are fixedly mounted on the inner wall of the L-shaped plate, and push plates are fixedly connected to the output ends of the two electric telescopic rods.

[0013] The working principle and beneficial effects of the utility model are:

[0014] The packaging bag is placed into the test water tank. At this time, observe whether there are bubbles in the water inside the test water tank. If bubbles are generated, it proves that the sealing of the packaging bag is unqualified. If no bubbles are generated, it proves that the sealing of the packaging bag is qualified. The first motor can be started to drive a transmission roller to rotate, so that the transmission roller drives the conveyor belt to rotate, and the remaining transmission rollers are linked to the conveyor belt to rotate, and the qualified packaging bags are transported. At the same time, the air pump is started during transportation. The gas generated by the air pump is transported to the inside of the heating box through the pipeline, and the gas is heated by the heating wire, so that the heated gas is transported to the inside of the sealing tube through the air pipe, and is sprayed out through the nozzle. The packaging bag after the inspection is dried to facilitate subsequent processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0016] Figure 1 This is a schematic diagram of the overall three-dimensional structure proposed by the utility model;

[0017] Figure 2 This is a schematic diagram of the cross-sectional structure of the detection water tank proposed by the utility model;

[0018] Figure 3 This is a schematic diagram of the cross-sectional structure of the shell proposed by the utility model;

[0019] Figure 4 This is a schematic diagram of the cross-sectional three-dimensional structure of the heating box proposed by the utility model.

[0020] In the figure: 1. detection water tank; 2. fixing plate; 3. transmission roller; 4. conveyor belt; 5. first motor; 6. housing; 7. sealing tube; 8. nozzle; 9. heating box; 10. heating wire; 11. air pipe; 12. air pump; 13. slideway; 14. first filter; 15. guide rod; 16. support plate; 17. second filter; 18. mounting plate; 19. retractable roller; 20. cable; 21. second motor; 22. L-shaped plate; 23. electric telescopic rod; 24. push plate; 25. spring. DETAILED DESCRIPTION

[0021] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1 - Figure 4, a sealing detection device for a pre-prepared food packaging bag, comprising: a detection water tank 1 and two fixed plates 2, the two fixed plates 2 are located on one side of the detection water tank 1, and the opposite sides of the two fixed plates 2 are connected to a plurality of transmission rollers 3 for common rotation, and the surfaces of the plurality of transmission rollers 3 are connected to a conveyor belt 4 in a tensioned manner, a first motor 5 is fixedly installed on one side of one of the two fixed plates 2, and the output end of the first motor 5 is fixedly connected to one of the plurality of transmission rollers 3, a shell 6 is fixedly installed on the top of the two fixed plates 2, a sealing tube 7 is fixedly installed on the inner wall of the shell 6, and a plurality of nozzles 8 are fixedly installed on the outer wall of the sealing tube 7, a heating box 9 is fixedly installed on the top of the shell 6, and a plurality of heating wires 10 are arranged inside the heating box 9, an air pipe 11 is fixedly installed on one side of the heating box 9, and one end of the air pipe 11 passes through the shell 6 and is connected to the sealing tube 7, an air pump 12 is fixedly installed on the top of the shell 6, and the air pump 12 is located on one side of the heating box 9, and the output end of the air pump 12 extends to the inside of the heating box 9 through a pipeline;

[0023] The packaging bag is placed into the testing water tank 1. At this time, observe whether bubbles are generated in the water inside the testing water tank 1. If bubbles are generated, it proves that the sealing of the packaging bag is unqualified. If no bubbles are generated, it proves that the sealing of the packaging bag is qualified. The first motor 5 can be started to drive a transmission roller 3 to rotate, so that the transmission roller 3 drives the conveyor belt 4 to rotate, and the remaining transmission rollers 3 are linked to the conveyor belt 4 to rotate, and the qualified packaging bags are transported. At the same time, the air pump 12 is started, and the gas generated by the air pump 12 is transported to the inside of the heating box 9 through a pipeline, and the gas is heated by the heating wire 10, so that the heated gas is transported to the inside 7 of the sealing tube through the air pipe 11, and is sprayed out through the nozzle 8. The packaging bag after the inspection is dried for subsequent processing.

[0024] Specifically, both sides of the inner wall of the detection water tank 1 are provided with a slide groove 13, and the interior of the slide groove 13 is slidably connected with a first filter screen 14. Two guide rods 15 are fixedly installed on the inner bottom wall of the detection water tank 1. The two guide rods 15 are slidably connected to the first filter screen 14. Springs 25 are fixedly installed at the four corners of the top of the first filter screen 14. The tops of the two guide rods 15 are fixedly connected to a support plate 16. A second filter screen 17 is arranged inside the detection water tank 1. The second filter screen 17 is slidably connected to the two guide rods 15. The top of the spring 25 is connected to the second filter screen 17. The top of the support plate 16 is fixedly installed. Two mounting plates 18 are installed, and opposite sides of the two mounting plates 18 are connected with a retractable roller 19 for common rotation, and the outer wall of the retractable roller 19 is wound with a cable 20, and one end of the cable 20 is connected with the first filter screen 14 through the through hole provided, and a second motor 21 is fixedly installed on one side of one of the two mounting plates 18, and the output end of the second motor 21 is movably connected to a mounting plate 18 and the retractable roller 19, and an L-shaped plate 22 is fixedly installed on one side of the detection water tank 1, and two electric telescopic rods 23 are fixedly installed on the inner wall of the L-shaped plate 22, and the output ends of the two electric telescopic rods 23 are fixedly connected with push plates 24;

[0025] By starting the second motor 21 to drive the retractable roller 19 to rotate forward, the retractable roller 19 reels the cable 20, and the first filter screen 14 is linked to slide inside the slide groove 13. When the first filter screen 14 slides to the inner top wall of the slide groove 13, the spring 25 is stretched. At this time, the packaging bag can be placed between the first filter screen 14 and the second filter screen 17. After placement, the second motor 21 is reversed to make the retractable roller 19 release the cable 20. The spring 25 is reset to clamp the packaging bag, which is convenient for testing the packaging bag. The qualified packaging bag is pushed by starting the electric telescopic rod 23, and the packaging bag is pushed into the conveyor belt 4 for transportation and drying.

[0026] The working process of the present application is as follows: the packaging bag is placed into the interior of the test water tank 1. At this time, observe whether bubbles are generated in the water inside the test water tank 1. If bubbles are generated, it proves that the sealing of the packaging bag is unqualified. If no bubbles are generated, it proves that the sealing of the packaging bag is qualified. The first motor 5 can be started to drive a transmission roller 3 to rotate, so that the transmission roller 3 drives the conveyor belt 4 to rotate, and the remaining transmission rollers 3 are linked to rotate by the conveyor belt 4 to transport qualified packaging bags. At the same time, the air pump 12 is started, and the gas generated by the air pump 12 is transported to the interior of the heating box 9 through a pipeline, and the gas is heated by the heating wire 10, so that the heated gas is transported to the interior 7 of the sealing tube through the air pipe 11, and is sprayed out through the nozzle 8. The packaging bag after the inspection is dried to facilitate subsequent processing.

[0027] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A sealing detection device for a pre-prepared food packaging bag, characterized in that: include: A detection water tank (1) and two fixed plates (2), the two fixed plates (2) being located on one side of the detection water tank (1), the two fixed plates (2) being connected to a plurality of transmission rollers (3) on opposite sides thereof in a rotational manner, the surfaces of the plurality of transmission rollers (3) being connected to a conveyor belt (4) in a tensioned manner, a first motor (5) being fixedly mounted on one side of one of the two fixed plates (2), the output end of the first motor (5) being fixedly connected to one of the plurality of transmission rollers (3); A shell (6) is fixedly installed on the top of the two fixed plates (2), a sealing tube (7) is fixedly installed on the inner wall of the shell (6), and a plurality of nozzles (8) are fixedly installed on the outer wall of the sealing tube (7). A heating box (9) is fixedly installed on the top of the shell (6), and a plurality of heating wires (10) are arranged inside the heating box (9). An air pipe (11) is fixedly installed on one side of the heating box (9), and one end of the air pipe (11) passes through the shell (6) and is connected to the sealing tube (7). An air pump (12) is fixedly installed on the top of the shell (6), and the air pump (12) is located on one side of the heating box (9). The output end of the air pump (12) extends to the inside of the heating box (9) through a pipeline.

2. The sealing detection device for pre-prepared food packaging bag according to claim 1, characterized in that: Slide grooves (13) are provided on both sides of the inner wall of the detection water tank (1), and a first filter screen (14) is slidably connected inside the slide groove (13). Two guide rods (15) are fixedly installed on the inner bottom wall of the detection water tank (1), and the two guide rods (15) are slidably connected to the first filter screen (14). Springs (25) are fixedly installed at the four corners of the top of the first filter screen (14).

3. The sealing detection device for pre-prepared food packaging bag according to claim 2, characterized in that: The top ends of the two guide rods (15) are fixedly connected with a support plate (16); a second filter screen (17) is arranged inside the detection water tank (1); the second filter screen (17) is slidably connected to the two guide rods (15); and the top end of the spring (25) is connected to the second filter screen (17).

4. The sealing detection device for pre-prepared food packaging bag according to claim 3, characterized in that: Two mounting plates (18) are fixedly mounted on the top of the support plate (16), and opposite sides of the two mounting plates (18) are rotatably connected to retractable rollers (19).

5. The sealing detection device for pre-prepared food packaging bag according to claim 4, characterized in that: A cable (20) is wound around the outer wall of the retractable roller (19), and one end of the cable (20) is connected to the first filter screen (14) via a through hole.

6. The sealing detection device for pre-prepared food packaging bag according to claim 4, characterized in that: A second motor (21) is fixedly mounted on one side of one of the two mounting plates (18), and an output end of the second motor (21) movably passes through one mounting plate (18) and is connected to the retractable roller (19).

7. The sealing detection device for pre-prepared food packaging bag according to claim 1, characterized in that: An L-shaped plate (22) is fixedly mounted on one side of the detection water tank (1), two electric telescopic rods (23) are fixedly mounted on the inner wall of the L-shaped plate (22), and push plates (24) are fixedly connected to the output ends of the two electric telescopic rods (23).

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