Anti-light-transmission plastic packaging bag sealing performance detection equipment

Abstract

The utility model relates to the technical field of plastic packaging bags, and discloses a light-transmitting-proof plastic packaging bag sealing performance detection device which comprises a detection cylinder, a supporting frame is welded to the upper end of the detection cylinder, a strip-shaped groove is formed in the middle of the supporting frame, a fixing frame is arranged at the upper end of the detection cylinder, and one end of the fixing frame is fixedly connected with a sliding rod. Sleeves are welded to the lower ends of the sliding rods, and positioning cylinders penetrate through inner cavities of the sleeves. According to the technical scheme of the utility model, the rubber ring on the positioning cylinder can press and limit the packaging bag which is sleeved on the detection cylinder conveniently, so that the trouble of strenuous clamping and opening binding of the packaging bag is avoided, the piston plate can extract air in the inner cavity at the left side of the detection cylinder, and if the sealing performance of the packaging bag is poor, the detection cylinder can not be damaged. According to the packaging bag detection device, the air can be discharged into the detection cylinder from the hole of the packaging bag in the pulling process, and the alarm lamp cannot be turned on, so that the detection of the packaging bag is completed in a linkage manner in the packaging bag limiting process, and the detection efficiency of the packaging bag is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic packaging bags, in particular to a sealing detection device for anti-light-transmitting plastic packaging bags. Background Art

[0002] Plastic packaging bags are made of plastic as raw materials and are used to produce various daily necessities. They are widely used in daily life and industrial production. Commonly used plastic packaging bags are mostly made of polyethylene film, which is non-toxic and can be used to hold food. Another type of film is made of polyvinyl chloride, which is also non-toxic, but the additives added according to the purpose of the film are often harmful to the human body and have a certain degree of toxicity.

[0003] After searching, the publication number is (CN221006667U), which discloses a plastic packaging bag sealing detection equipment, including a base plate, the four corners of the top of the base plate are fixedly connected to support blocks, the top of the support blocks are respectively fixedly connected to a mounting block and a connecting block, the top of the mounting block is movably connected to a threaded rod, the top of the threaded rod is fixedly connected to a holding block, the outer wall of the threaded rod is threadedly connected to a moving block, and the inside of the connecting block is slidably connected to a slider.

[0004] When implementing this technical solution, there are at least the following defects: Although this utility model can blow air into the packaging bag to detect the sealing, each bag needs to be clamped and limited before the bag mouth is inflated. The cumbersome steps greatly affect the inspection efficiency of the packaging bag, and it is urgently needed to be improved. Therefore, we propose a sealing inspection device for anti-translucent plastic packaging bags. Utility Model Content

[0005] The utility model aims to provide a device for detecting the sealing performance of anti-translucent plastic packaging bags, which solves the problems raised in the background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a kind of anti-transmittance plastic packaging bag sealing detection equipment, including a detection cylinder, a support frame is welded to the upper end of the detection cylinder, a strip groove is opened in the middle of the support frame, a fixing frame is arranged at the upper end of the detection cylinder, a sliding rod is fixedly connected to one end of the fixing frame, a sleeve is welded to the lower end of the sliding rod, a positioning cylinder is penetrated through the inner cavity of the sleeve, a piston plate is arranged in the inner cavity of the detection cylinder, and the sleeve and the positioning cylinder are arranged on one side of the detection cylinder.

[0007] By adopting the above technical scheme, the rubber ring on the positioning cylinder can not only press and limit the packaging bag that is sleeved on the detection cylinder, thereby saving the trouble of clamping the packaging bag, but also enable the piston plate to extract the air from the inner cavity on the left side of the detection cylinder. If the packaging bag has poor sealing performance, air will be discharged into the detection cylinder from the holes in the packaging bag during the pulling process, and the alarm light will not be able to light up. Therefore, the detection of the packaging bag is completed in the process of limiting the packaging bag, thereby improving the detection efficiency of the packaging bag.

[0008] Optionally, an air pressure sensor is fixedly mounted in the middle of the upper end of the inner cavity of the detection cylinder, and an alarm light is fixedly mounted on the upper end of the detection cylinder.

[0009] By adopting the above technical solution, the packaging bag can be sealed by using an air pressure sensor in conjunction with an alarm light.

[0010] Optionally, the size of the sliding rod is matched with the size of the strip groove, and the sliding rod is slidably connected to the strip groove.

[0011] By adopting the above technical solution, the sliding rod cooperates with the strip groove, so that the stability of the movement of the sleeve can be ensured.

[0012] Optionally, a rubber ring is bonded to the inner side of the positioning tube, and the length of the rubber ring is the same as the length of the positioning tube.

[0013] By adopting the above technical solution and setting the rubber ring, continuous compression of the packaging bag can be ensured.

[0014] Optionally, the length of the positioning cylinder is greater than the length of the sleeve, and the left end of the positioning cylinder is flush with the left end of the sleeve.

[0015] By adopting the above technical solution, the length of the positioning tube is greater than the length of the sleeve, thereby ensuring continuous compression of the packaging bag.

[0016] Optionally, the size of the piston plate is matched to the size of the inner cavity of the detection cylinder, and the piston plate is sealed and connected to the inner cavity of the detection cylinder.

[0017] By adopting the above technical solution and setting the piston plate, the air on the left side of the detection cylinder can be extracted.

[0018] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0019] The technical solution of the present application, through the provision of a detection cylinder, a fixing frame, a sleeve, a rubber ring, a piston plate and an alarm light, can enable the rubber ring on the positioning cylinder to compress and limit the packaging bag that is sleeved on the detection cylinder, thereby saving the trouble of laboriously clamping the packaging bag at the mouth, and can enable the piston plate to extract the air from the inner cavity on the left side of the detection cylinder. If the packaging bag has poor sealing performance, air will be discharged into the detection cylinder from the holes in the packaging bag during the pulling process, and the alarm light will not be able to light up. Therefore, the detection of the packaging bag can be completed in a linked manner during the process of limiting the packaging bag, thereby improving the detection efficiency of the packaging bag. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0021] Figure 1 This is a three-dimensional structural schematic diagram of a sealing detection device for anti-translucent plastic packaging bags of the utility model;

[0022] Figure 2 This is a schematic diagram of the main cross-sectional structure of a device for detecting the sealing performance of an anti-translucent plastic packaging bag according to the utility model;

[0023] Figure 3 The utility model is a schematic diagram of the side structure of a positioning cylinder of a sealing detection device for anti-translucent plastic packaging bags.

[0024] In the figure: 1. detection cylinder; 11. support frame; 12. strip groove; 2. fixing frame; 21. sliding rod; 22. sleeve; 23. positioning cylinder; 24. rubber ring; 3. piston plate; 4. air pressure sensor; 5. warning light. DETAILED DESCRIPTION

[0025] See also Figure 1-3The utility model provides a technical solution: a sealing detection device for anti-transmittance plastic packaging bags, comprising a detection cylinder 1, a support frame 11 is welded on the upper end of the detection cylinder 1, a strip groove 12 is opened in the middle of the support frame 11, a fixing frame 2 is arranged on the upper end of the detection cylinder 1, a sliding rod 21 is fixedly connected to one end of the fixing frame 2, a sleeve 22 is welded on the lower end of the sliding rod 21, a positioning cylinder 23 is penetrated through the inner cavity of the sleeve 22, a piston plate 3 is arranged in the inner cavity of the detection cylinder 1, the sleeve 22 and the positioning cylinder 23 are arranged on one side of the detection cylinder 1, and a rubber ring 24 is bonded to the inner side of the positioning cylinder 23 , and the length of the rubber ring 24 is the same as the length of the positioning cylinder 23. By setting the rubber ring 24, continuous compression of the packaging bag can be ensured. The length of the positioning cylinder 23 is greater than the length of the sleeve 22, and the left end of the positioning cylinder 23 is flush with the left end of the sleeve 22. By making the length of the positioning cylinder 23 greater than the length of the sleeve 22, continuous compression of the packaging bag can be ensured. The size of the piston plate 3 is compatible with the inner cavity size of the detection cylinder 1, and the piston plate 3 is sealed and connected to the inner cavity of the detection cylinder 1. By setting the piston plate 3, the air on the left side of the detection cylinder 1 can be extracted.

[0026] An air pressure sensor 4 is fixedly mounted in the middle of the upper end of the inner cavity of the detection tube 1 , and an alarm light 5 is fixedly mounted on the upper end of the detection tube 1 . The air pressure sensor 4 cooperates with the alarm light 5 , so that the packaging bag can be sealed.

[0027] The size of the slide bar 21 matches the size of the strip groove 12 , and the slide bar 21 is slidably connected to the strip groove 12 . The slide bar 21 cooperates with the strip groove 12 , thereby ensuring the stability of the movement of the sleeve 22 .

[0028] During the inspection, firstly, the packaging bag to be inspected is put on the left side of the inspection cylinder 1, and then the fixing frame 2 is pulled to move to the right, and the fixing frame 2 drives the sliding rod 21 to move with it, and the sliding rod 21 drives the sleeve 22 to move to the right in cooperation with the positioning cylinder 23, and at the same time, the rubber ring 24 on the positioning cylinder 23 presses and limits the packaging bag put on the inspection cylinder 1, thereby eliminating the trouble of clamping the packaging bag with effort, and at the same time, the fixing frame 2 is continuously pushed to move to the right, and the rubber ring 24 on the positioning cylinder 23 continues to press the edge of the packaging bag, and the fixing frame 2 that continues to move is continuously pushed to move to the right. The frame 2 will drive the piston plate 3 to move to the right, so that the piston plate 3 will extract the air from the inner cavity on the left side of the detection tube 1. When the air pressure sensor 4 detects that the air pressure reaches the threshold value, the air pressure sensor 4 transmits the signal to the PLC controller, and the PLC controller controls the alarm light 5 to light up. On the contrary, if the packaging bag has poor sealing performance, air will be discharged into the detection tube 1 from the holes in the packaging bag during the pulling process, and the alarm light 5 will not be able to light up. Therefore, the detection of the packaging bag is completed in a linked manner during the process of limiting the packaging bag, thereby improving the detection efficiency of the packaging bag.

Claims

1. A device for detecting the sealing property of a light-proof plastic packaging bag, comprising a detection tube (1), characterized in that: A support frame (11) is welded to the upper end of the detection cylinder (1), a strip groove (12) is opened in the middle of the support frame (11), a fixing frame (2) is arranged at the upper end of the detection cylinder (1), a sliding rod (21) is fixedly connected to one end of the fixing frame (2), a sleeve (22) is welded to the lower end of the sliding rod (21), a positioning cylinder (23) is arranged through the inner cavity of the sleeve (22), a piston plate (3) is arranged in the inner cavity of the detection cylinder (1), and the sleeve (22) and the positioning cylinder (23) are arranged on one side of the detection cylinder (1).

2. The anti-transmittance plastic packaging bag sealing detection device according to claim 1, characterized in that: An air pressure sensor (4) is fixedly mounted in the middle of the upper end of the inner cavity of the detection tube (1), and an alarm light (5) is fixedly mounted at the upper end of the detection tube (1).

3. The anti-transmittance plastic packaging bag sealing detection device according to claim 1, characterized in that: The size of the sliding rod (21) is matched with the size of the strip groove (12), and the sliding rod (21) is slidably connected to the strip groove (12).

4. The anti-translucent plastic packaging bag sealing detection device according to claim 1, characterized in that: A rubber ring (24) is bonded to the inner side of the positioning cylinder (23), and the length of the rubber ring (24) is the same as that of the positioning cylinder (23).

5. The anti-transmittance plastic packaging bag sealing detection device according to claim 1, characterized in that: The length of the positioning tube (23) is greater than the length of the sleeve (22), and the left end of the positioning tube (23) is flush with the left end of the sleeve (22).

6. The anti-transmittance plastic packaging bag sealing detection device according to claim 1, characterized in that: The size of the piston plate (3) is matched to the size of the inner cavity of the detection cylinder (1), and the piston plate (3) is sealedly connected to the inner cavity of the detection cylinder (1).

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