A composite coated plastic bag detection device
By introducing an electric push rod driven hook plate and lifting frame into the composite coated plastic bag inspection device, automatic hanging and water flow control of plastic bags are achieved, solving the safety hazards of heavy plastic bags and leakage and breakage after inspection, and improving the convenience and safety of operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG YIZHOUYUAN NEW MATERIAL TECH CO LTD
- Filing Date
- 2025-06-09
- Publication Date
- 2026-06-16
AI Technical Summary
Existing composite coated plastic bag testing devices are quite heavy after the plastic bags are filled with water, making them inconvenient to remove. They also pose safety hazards such as water spillage in case of leakage or breakage, and increase the workload of cleaning and maintenance.
A detection device comprising a base, a hook plate, a water delivery pipe, a lifting frame, and a collection hopper was designed. The hook plate and the lifting frame are driven to rise and fall by an electric push rod, thereby realizing the automatic hooking and retrieval of coated plastic bags and water flow control, collecting water in the collection hopper to prevent water from spilling onto the ground.
It reduced the workload of staff, avoided water accumulation on the ground and safety hazards, simplified the cleaning process, and improved the convenience and safety of testing.
Smart Images
Figure CN224365871U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of plastic bag detection technology, and in particular to a detection device for composite coated plastic bags. Background Technology
[0002] Lamination is a process that involves uniformly coating a plastic film (such as PE, PP, etc.) onto the surface of a substrate (such as paper, non-woven fabric, or aluminum foil) through high-temperature melting, forming a waterproof, oil-proof, and highly airtight composite material. Plastic bags, made primarily of plastic (common plastics include polypropylene, polyester, nylon, etc.), are essential items in daily life, often used to store other goods. Laminated plastic bags are composite materials made by uniformly coating a layer of plastic film (such as PE, PP, or other functional coatings) onto the surface of traditional plastic bags through a high-temperature melting process. This process not only retains the lightweight, flexible, and easy-to-process characteristics of plastic bags but also significantly improves their physical properties. The lamination layer gives the bag stronger waterproof, oil-proof, and airtight properties, effectively blocking the penetration of moisture and grease.
[0003] A composite coated plastic bag testing device is disclosed in Chinese utility model patent with publication number CN219915116U. The device includes a support frame, a slide rail on the upper inner surface of the support frame, a hook rod slidably connected in the slide rail, a plastic bag hanging at the lower end of the hook rod, and a water guide pipe fixed on the inner surface of the support frame. The water guide pipe extends into the plastic bag and guides water into the plastic bag. The device can directly test the load-bearing capacity and sealing performance, making the testing convenient and the device cost-effective.
[0004] Regarding the aforementioned technologies, the inventors believe the following drawbacks exist: In actual use, the device requires filling a plastic bag with water for testing. However, after testing, the weight of the water-filled bag makes it inconvenient and time-consuming for staff to remove it. Furthermore, if the tested plastic bag has material defects or is faulty, leakage or sudden rupture may occur during testing. In this case, a large amount of water inside the bag will spill directly onto the ground, causing a slippery testing environment that affects subsequent testing and poses a safety hazard of slipping for staff. The leakage also increases the workload for cleaning and maintenance. Utility Model Content
[0005] To address the aforementioned problems, this utility model provides a composite coated plastic bag detection device.
[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a composite coated plastic bag detection device, comprising a base, two upright plates spaced apart on the base, a top plate shared by the two upright plates, two fixed rods symmetrically arranged on the bottom surface of the top plate, hook plates hinged to the lower ends of the fixed rods, and fixed shafts horizontally arranged on adjacent sides of the two hook plates, a first electric push rod vertically arranged on the top plate, the piston rod of the first electric push rod passing downward through the top plate and having a lifting seat, connecting blocks on both sides of the lifting seat, strip holes opened on the connecting blocks, the ends of the fixed shafts slidably arranged in the corresponding strip holes, a water delivery pipe arranged on the top plate, the water delivery pipe connected to an external water source, a water valve arranged on the water delivery pipe, a lifting frame vertically slidably arranged between the two upright plates, a collection hopper with an upward opening arranged on the lifting frame, a second electric push rod vertically arranged on the base, the piston rod of the second electric push rod pointing upward and connected to the lifting frame.
[0007] By adopting the above technical solution, a base, hook plate, water delivery pipe, lifting frame, and collection hopper are set up. A first electric push rod drives the lifting seat to rise and fall, which in turn moves the connecting block, causing the fixed shaft to rise and fall, and consequently, the hook plate to rotate, tilting the end of the hook plate away from the fixed shaft upwards or downwards. The first electric push rod adjusts the hook plate to tilt upwards at the end away from the fixed shaft, and then the two hanging ears of the coated plastic bag are hung on the two hook plates respectively, making it difficult for the ears to fall off. Water is then added to the coated plastic bag through the water delivery pipe, and any leaks or damage are observed to test the performance of the coated plastic bag. After the test, a second electric push rod pushes the lifting frame and collection hopper upwards until the collection hopper contacts the bottom of the coated plastic bag for support. Then, the first electric push rod adjusts the hook plate to tilt downwards at the end away from the fixed shaft, separating the two hanging ears of the coated plastic bag from the hook plate, and water flows out from the opening of the coated plastic bag. After the test, workers do not need to manually remove the water-filled plastic bag, reducing the labor intensity of the workers. Even if the plastic bag leaks or suddenly breaks during the test, the collection bucket can catch the water and prevent it from spilling onto the ground.
[0008] Furthermore, the water delivery pipe includes a first vertical pipe, the water valve is installed on the first vertical pipe, a horizontal pipe is installed at the lower end of the first vertical pipe, and a second vertical pipe is installed at the end of the horizontal pipe away from the first vertical pipe, the second vertical pipe being located below the lifting seat.
[0009] By adopting the above technical solution, a first vertical pipe, a horizontal pipe, and a second vertical pipe are set up to ensure that water can enter the coated plastic bag.
[0010] Furthermore, a filter screen is installed inside the collection hopper.
[0011] By adopting the above technical solution, a filter screen is installed inside the collection hopper. The filter screen supports the coated plastic bag, so that the coated plastic bag will not be located at the bottom of the collection hopper, making it easy for staff to take it out.
[0012] Furthermore, a supporting frustum is provided in the center of the top surface of the filter screen.
[0013] By adopting the above technical solution, a supporting truncated cone is set in the middle of the top surface of the filter screen. The truncated cone supports the bottom center area of the coated plastic bag, which facilitates the outflow of water from the coated plastic bag.
[0014] Furthermore, the top of the lifting seat is vertically provided with four guide rods arranged in a rectangular array, and the top plate is provided with guide holes corresponding to the guide rods. The guide rods are slidably disposed in the corresponding guide holes, and the upper end of the guide rods is provided with limit rings.
[0015] By adopting the above technical solution, and setting guide rods, guide holes, and limit rings, the stability of the lifting seat's lifting is ensured.
[0016] Furthermore, the two upright plates are vertically provided with grooves on adjacent sides, the openings of the two grooves are arranged opposite each other, and a slider connected to the lifting frame is slidably disposed in the groove.
[0017] By adopting the above technical solution and setting up slides and sliders, the stability of the lifting frame is ensured.
[0018] Furthermore, a drain hose is connected to the bottom of the collection hopper.
[0019] By adopting the above technical solution, a drainage hose is connected to the bottom of the collection hopper to guide and discharge the water in the collection hopper.
[0020] In summary, this utility model has the following beneficial effects: This application includes a base, hook plate, water delivery pipe, lifting frame, and collection hopper. A first electric push rod drives the lifting seat to rise and fall, which in turn drives the connecting block to rise and fall, thereby driving the fixed shaft to rise and fall, and consequently, rotating the hook plate. This causes the end of the hook plate away from the fixed shaft to tilt upwards or downwards. The first electric push rod adjusts the hook plate so that the end away from the fixed shaft tilts upwards, and then the two hanging ears of the coated plastic bag are hung on the two hook plates respectively, making it difficult for the hanging ears to fall off. Water is then added to the coated plastic bag through the water delivery pipe, and any leakage or damage is observed, thus testing the performance of the coated plastic bag. After the test, a second electric push rod pushes the lifting frame and collection hopper upwards until the collection hopper contacts the bottom of the coated plastic bag for support. Then, the first electric push rod adjusts the hook plate so that the end away from the fixed shaft tilts downwards, separating the two hanging ears of the coated plastic bag from the hook plate, and water flows out from the opening of the coated plastic bag. After the test, workers do not need to manually remove the water-filled plastic bag, reducing the labor intensity of the workers. Even if the plastic bag leaks or suddenly breaks during the test, the collection bucket can catch the water and prevent it from spilling onto the ground. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;
[0022] Figure 2 This is a schematic diagram of the lifting frame and collecting hopper according to an embodiment of the present invention;
[0023] Figure 3 This is a schematic diagram of the top plate and water delivery pipe in an embodiment of this utility model;
[0024] Figure 4 This is a structural schematic diagram of the fixed rod and lifting seat in an embodiment of this utility model.
[0025] In the diagram: 10. Base; 11. Vertical plate; 12. Top plate; 13. Slide groove; 14. Slider; 20. Fixed rod; 21. Hook plate; 22. Fixed shaft; 30. First electric push rod; 31. Lifting seat; 32. Connecting block; 33. Strip hole; 34. Guide rod; 35. Limiting ring; 40. Water delivery pipe; 41. Water valve; 42. First vertical pipe; 43. Horizontal pipe; 44. Second vertical pipe; 50. Lifting frame; 51. Collection hopper; 52. Second electric push rod; 53. Filter screen; 54. Support truncated cone; 55. Drainage hose. Detailed Implementation
[0026] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.
[0027] like Figure 1-4 As shown in the embodiment of this application, a composite coated plastic bag detection device is disclosed, including a base 10, a first electric push rod 30, a water conveying pipe 40, a lifting frame 50, and a collection hopper 51. Two upright plates 11 are spaced apart on the base 10, and a top plate 12 is shared on the top of the two upright plates 11. Two fixed rods 20 are symmetrically arranged on the bottom surface of the top plate 12, and hook plates 21 are hinged to the lower ends of the fixed rods 20. The two hook plates 21 are symmetrically arranged. A fixed shaft 22 is horizontally arranged on the adjacent side of each hook plate 21. The first electric push rod 30 is vertically arranged on the top plate 12. The piston rod of the first electric push rod 30 passes downward through the top plate 12 and is provided with a lifting seat 31. Connecting blocks 32 are provided on both sides of the lifting seat 31, and strip holes 33 are opened on the connecting blocks 32. The ends of the fixed shafts 22 are slidably disposed within the corresponding strip holes 33. The first electric push rod 30 drives the lifting seat 31 to rise and fall, which in turn drives the connecting block 32 to rise and fall, thereby causing the hook plate 21 to rotate, so that the end of the hook plate 21 away from the fixed shaft 22 tilts upward or downward. When the fixed shaft 22 rises and falls, it is restricted by the hook plate 21, so that the fixed shaft 22 slides within the strip hole 33.
[0028] A water delivery pipe 40 is installed on the top plate 12, which is connected to an external water source. A water valve 41 is installed on the water delivery pipe 40. A lifting frame 50 is vertically slidably installed between the two upright plates 11. A collection hopper 51 with an upward-facing opening is installed on the lifting frame 50. A second electric push rod 52 is vertically installed on the base 10, with its piston rod pointing upward and connected to the lifting frame 50. The first electric push rod 30 adjusts the hook plate 21 so that the end away from the fixed shaft 22 tilts upward, and then the two hanging ears of the coated plastic bag are hung on the two hook plates 21 respectively, making it difficult for the hanging ears to fall off. Water is then added to the coated plastic bag through the water delivery pipe 40, and any leakage or damage is observed to test the performance of the coated plastic bag. After the test, the second electric push rod 52 pushes the lifting frame 50 and the collection hopper 51 upward until the collection hopper 51 contacts the bottom of the coated plastic bag to support it. Subsequently, the first electric push rod 30 adjusts the hook plate 21 so that the end away from the fixed shaft 22 tilts downward, separating the two hanging ears of the coated plastic bag from the hook plate 21, and then water flows out from the opening of the coated plastic bag. After the test, the staff does not need to manually remove the plastic bag full of water, reducing the labor intensity of the staff. Even if the plastic bag leaks or suddenly breaks during the test, the collection hopper 51 can catch the water and prevent it from falling to the ground.
[0029] Specifically, the top of the lifting seat 31 has four guide rods 34 arranged in a rectangular array. The top plate 12 has guide holes corresponding to the guide rods 34, and the guide rods 34 are slidably disposed within the corresponding guide holes. A limit ring 35 is provided at the upper end of each guide rod 34 to ensure the stability of the lifting seat 31 during lifting. Two vertical plates 11 have vertically formed grooves 13 on adjacent sides, with the openings of the two grooves 13 facing each other. A slider 14 connected to the lifting frame 50 is slidably disposed within the groove 13 to ensure the stability of the lifting frame 50 during lifting.
[0030] During setup, a filter screen plate 53 is installed inside the collection hopper 51. The filter screen plate 53 supports the coated plastic bag, preventing it from being located at the bottom of the collection hopper 51, making it easy for staff to remove. Water inside the coated plastic bag can pass through the filter screen plate 53 into the collection hopper 51. A supporting frustum 54 is provided in the center of the top surface of the filter screen plate 53. The frustum supports the central area at the bottom of the coated plastic bag, facilitating the outflow of water from the bag.
[0031] In the specific setup, the water delivery pipe 40 includes a first vertical pipe 42, a water valve 41 installed on the first vertical pipe 42, a horizontal pipe 43 installed at the lower end of the first vertical pipe 42, and a second vertical pipe 44 installed at the end of the horizontal pipe 43 away from the first vertical pipe 42. The second vertical pipe 44 is located below the lifting seat 31 to ensure that water can enter the coated plastic bag. A water flow valve is also installed on the first vertical pipe 42 to observe the flow rate of the introduced water and determine the weight. A drain hose 55 is connected to the bottom of the collection hopper 51 to guide and drain the water in the collection hopper 51. The wide receiving surface of the collection hopper 51 can completely cover the test area, ensuring that if the plastic bag leaks or suddenly breaks during the test, the falling water is intercepted and can be quickly guided into the bottom drain hose 55, and then discharged into a designated recycling container or sewer through the drain hose 55. This avoids the problem of slippery ground in the test area and eliminates the safety hazard of workers slipping.
[0032] The operating principle of the composite coated plastic bag detection device in this embodiment is as follows:
[0033] During testing, the first electric push rod 30 is activated to drive the lifting seat 31 to descend, which in turn lowers the connecting block 32 and the fixed shaft 22, causing the hook plate 21 to rotate and tilt upwards at the end away from the fixed shaft 22. Then, the two loops of the coated plastic bag are hung on the two hook plates 21 respectively. Next, the water valve 41 is opened, and water flows into the coated plastic bag through the water delivery pipe 40. The system is then checked for leaks or damage to assess the performance of the coated plastic bag.
[0034] After the test, the second electric push rod 52 pushes the lifting frame 50 and the collection hopper 51 upwards until the filter screen plate 53 and the supporting truncated cone 54 contact the bottom of the coated plastic bag to support it. The first electric push rod 30 is then activated to drive the lifting seat 31 upwards, which in turn drives the connecting block 32 and the fixed shaft 22 upwards, causing the hook plate 21 to rotate, with its end away from the fixed shaft 22 tilting downwards. The two hanging ears of the coated plastic bag separate from the hook plate 21, and water then flows out from the opening of the coated plastic bag.
[0035] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.
Claims
1. A detection device for composite coated plastic bags, characterized in that: Includes a base (10), on which two upright plates (11) are spaced apart. The top of the two upright plates (11) is shared by a top plate (12). The bottom surface of the top plate (12) is symmetrically provided with two fixing rods (20). The lower end of the fixing rods (20) is hinged with a hook plate (21). The two hook plates (21) are horizontally provided with fixing shafts (22) on their adjacent sides. The top plate (12) is vertically provided with a first electric push rod (30). The piston rod of the first electric push rod (30) passes downward through the top plate (12) and is provided with a lifting seat (31). The lifting seat (31) is provided with connecting blocks (32) on both sides. The connecting block (32) has a strip hole (33), and the end of the fixed shaft (22) is slidably disposed in the corresponding strip hole (33). A water conveying pipe (40) is disposed on the top plate (12), and the water conveying pipe (40) is connected to an external water source. A water valve (41) is disposed on the water conveying pipe (40). A lifting frame (50) is also vertically slidably disposed between the two upright plates (11). A collection hopper (51) with an upward opening is disposed on the lifting frame (50). A second electric push rod (52) is vertically disposed on the base (10), and the piston rod of the second electric push rod (52) is upward and connected to the lifting frame (50).
2. The composite coated plastic bag detection device according to claim 1, characterized in that: The water delivery pipe (40) includes a first vertical pipe (42), the water valve (41) is installed on the first vertical pipe (42), a horizontal pipe (43) is installed at the lower end of the first vertical pipe (42), and a second vertical pipe (44) is installed at the end of the horizontal pipe (43) away from the first vertical pipe (42), and the second vertical pipe (44) is located below the lifting seat (31).
3. The composite coated plastic bag detection device according to claim 1, characterized in that: The collection hopper (51) is equipped with a filter screen (53).
4. The composite coated plastic bag detection device according to claim 3, characterized in that: A supporting frustum (54) is provided in the middle of the top surface of the filter screen (53).
5. The composite coated plastic bag detection device according to claim 1, characterized in that: The top of the lifting seat (31) is vertically provided with four guide rods (34) arranged in a rectangular array. The top plate (12) is provided with guide holes corresponding to the guide rods (34). The guide rods (34) are slidably disposed in the corresponding guide holes. The upper end of the guide rods (34) is provided with limit rings (35).
6. The composite coated plastic bag detection device according to claim 1, characterized in that: The two upright plates (11) are vertically provided with grooves (13) on adjacent sides, and the openings of the two grooves (13) are arranged opposite to each other. A slider (14) connected to the lifting frame (50) is slidably provided in the groove (13).
7. The composite coated plastic bag detection device according to claim 1, characterized in that: The bottom of the collection hopper (51) is connected to a drain hose (55).