Blown film deposit on-line monitoring and cleaning apparatus

By introducing a visual inspection camera and an electro-hydraulic system into the blown film device, remote monitoring and automatic cleaning of blown film precipitates were achieved, solving the problems of inconvenient monitoring and time-consuming and labor-intensive cleaning of existing devices, and improving cleaning efficiency.

CN224374840UActive Publication Date: 2026-06-19ZIBO HUA ZHI LIN PACKING PROD CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZIBO HUA ZHI LIN PACKING PROD CO LTD
Filing Date
2025-06-16
Publication Date
2026-06-19

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    Figure CN224374840U_ABST
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Abstract

The utility model relates to blow film precipitate cleaning technical field, and disclose blow film precipitate on -line monitoring and cleaning device, including installation backplate, guide roller and brush plate, the bottom one side of installation backplate is installed with the sliding frame through bolt and both ends in sliding frame are all slidingly connected with the sliding block, and both sides of the end of sliding frame are all installed with electric hydraulic cylinder through fixed plate, and the output shaft of electric hydraulic cylinder all is installed with the connecting block through screw and one side of connecting block is connected with sliding block through sliding rod, and the outside of sliding block all is installed with T shape support plate through bolt, and the inside of T shape support plate is connected with brush plate at equal intervals through support spring and the inside of brush plate is bonded with cleaning brush hair through waterproof solidification glue, blow film precipitate on -line monitoring and cleaning device are convenient for blow film precipitate remote monitoring, when appearing, it is convenient to realize the cleaning of precipitate through cleaning device, and the cleaning efficiency is high, and manpower and material resources are saved.
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Description

Technical Field

[0001] This utility model relates to the field of blown film precipitate cleaning technology, and in particular to an online monitoring and cleaning device for blown film precipitates. Background Technology

[0002] The blow molding machine uses a screw to gradually melt plastic particles into a uniform melt. The plasticized melt is then pushed by the screw to the die head, where it is extruded through the annular gap between the die head and the mandrel, forming a tubular film preform. This preform is rapidly cooled and solidified by cold air blown from an air ring above the die head. Simultaneously, compressed air is introduced into the preform, causing it to expand radially to achieve the desired film width and thickness. Blow-film precipitates are substances that precipitate from the matrix during the blow-film process. Their composition differs from the matrix's elemental proportions, often consisting of free elements aggregated at grain boundaries. Therefore, cleaning equipment is required to remove them. During production, these precipitates are often found by wiping with a black cloth, which is time-consuming and labor-intensive.

[0003] Previous blown film precipitate online monitoring and cleaning devices have the following drawbacks: 1. They are not convenient for remote monitoring of blown film precipitates, and when precipitates occur, they are not convenient for rapid cleaning via cleaning devices, which is time-consuming and labor-intensive. Therefore, those skilled in the art have provided blown film precipitate online monitoring and cleaning devices to solve the problems mentioned in the background art. Utility Model Content

[0004] The main objective of this invention is to provide an online monitoring and cleaning device for blown film precipitates, in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] Online monitoring and cleaning device for blown film precipitates, including mounting backplate, guide rollers and brush plate;

[0007] A sliding frame is bolted to one side of the bottom of the mounting backplate, and sliding blocks are slidably connected to both ends of the sliding frame. An electric hydraulic cylinder is mounted on both sides of the end of the sliding frame via a fixing plate. The output shaft of the electric hydraulic cylinder is mounted on a connecting block via screws, and a sliding block is connected to one side of the connecting block via a sliding rod. A T-shaped support plate is bolted to the outside of the sliding block. A brush plate is connected at equal intervals to the inside of the T-shaped support plate via a support spring, and cleaning bristles are glued to the inside of the brush plate with waterproof curing adhesive. A bent connecting rod is welded to both sides of the end of the mounting backplate, and a vision inspection camera is bolted to one end of the bent connecting rod.

[0008] As a further improvement of this utility model: both ends of the sliding frame are equipped with PLC controllers by screws. The output end of the PLC controller is electrically connected to the input end of the electric hydraulic cylinder through a wire. The PLC controller automatically controls the start and stop and the output stroke of the electric hydraulic cylinder, which is easy to adjust and meets the needs of plastic films of different thicknesses.

[0009] As a further improvement of this utility model: L-shaped positioning plates are installed at both ends of the top of the mounting back plate by screws, and support rods are welded onto the L-shaped positioning plates.

[0010] As a further embodiment of this utility model: a guide roller is sleeved on the support rod, and limit sleeves are provided at both ends of the guide roller, the limit sleeves being sleeved on the support rod.

[0011] As a further improvement of this utility model: both sides of the sliding frame are provided with strip-shaped sliding holes and the sliding rod passes through the strip-shaped sliding holes.

[0012] As a further improvement of this utility model: mounting screw holes are provided at the corners of the mounting back plate, and the visual inspection camera is located on both sides of the top of the brush plate. The mounting screw holes and matching bolts on the mounting back plate facilitate the installation of the entire device on the support frame. The visual inspection camera facilitates the recording of local parts of the produced plastic film.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. The mounting screw holes and matching bolts on the mounting back plate facilitate the installation of the entire device on the support frame and it is located at the lower end of the blown film machine's discharge port. The plastic film produced by the blown film machine passes through the guide rollers, which serve to level and guide the film. The drooping plastic film passes through the brush plates. A vision inspection camera is used to capture local images of the produced plastic film, and the captured data is transmitted to a connected computer for remote monitoring of the appearance quality of the produced plastic film.

[0015] 2. When precipitates appear on the surface, notify the on-site personnel in a timely manner, turn on the power of the electric hydraulic cylinder, and use the electric hydraulic cylinder to push the connecting block forward so that the sliding block slides towards each other in the sliding frame. This allows the cleaning bristles on both sides to adhere tightly to the surface of the plastic film. As the plastic film moves downward, the precipitates are cleaned. The cleaning efficiency is high and saves manpower and resources. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the blown film precipitate online monitoring and cleaning device of this utility model.

[0017] Figure 2This is a bottom view of the blown film precipitate online monitoring and cleaning device of this utility model.

[0018] Figure 3 This is a schematic diagram of the sliding rod structure of the blown film precipitate online monitoring and cleaning device of this utility model.

[0019] In the diagram: 1. Electric hydraulic cylinder; 2. PLC controller; 3. Sliding frame; 4. Connecting block; 5. Strip-shaped sliding hole; 6. Mounting screw hole; 7. Mounting back plate; 8. L-shaped positioning plate; 9. Guide roller; 10. Bending connecting rod; 11. Vision inspection camera; 12. Limit sleeve; 13. Support rod; 14. Sliding block; 15. T-shaped support plate; 16. Support spring; 17. Brush plate; 18. Cleaning brush bristles; 19. Sliding rod. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-3 In this embodiment of the utility model, the blown film precipitate online monitoring and cleaning device includes a mounting back plate 7, a guide roller 9 and a brush plate 17;

[0022] A sliding frame 3 is bolted to one side of the bottom of the mounting backplate 7, and sliding blocks 14 are slidably connected to both ends of the sliding frame 3. Electric hydraulic cylinders 1 are mounted on both sides of the end of the sliding frame 3 via fixing plates. The output shafts of the electric hydraulic cylinders 1 are mounted with connecting blocks 4 via screws, and one side of the connecting blocks 4 is connected to the sliding blocks 14 via sliding rods 19. T-shaped support plates 15 are bolted to the outside of the sliding blocks 14. Brush plates 17 are connected at equal intervals to the inside of the T-shaped support plates 15 via support springs 16, and cleaning bristles 18 are glued to the inside of the brush plates 17 with waterproof curing adhesive. Bending connecting rods 10 are welded to both sides of the end of the mounting backplate 7, and a vision inspection camera 11 is bolted to one end of the bending connecting rods 10.

[0023] PLC controllers 2 are mounted on both ends of the sliding frame 3 with screws. The output end of the PLC controller 2 is electrically connected to the input end of the electric hydraulic cylinder 1 through wires. The PLC controller 2 automatically controls the start, stop and output stroke of the electric hydraulic cylinder 1, which is easy to adjust and meets the needs of plastic films of different thicknesses.

[0024] The top two ends of the mounting back plate 7 are fitted with L-shaped positioning plates 8 by screws, and support rods 13 are welded onto the L-shaped positioning plates 8; the support rods 13 facilitate the installation and use of the guide rollers 9 and make disassembly easy.

[0025] The support rod 13 is fitted with a guide roller 9, and the two ends of the guide roller 9 are provided with limit sleeves 12. The limit sleeves 12 are fitted on the support rod 13. The guide roller 9 is used to level and guide, and the limit sleeves 12 are used to limit the guide roller 9 to prevent horizontal movement.

[0026] The sliding frame 3 has strip-shaped sliding holes 5 on both sides and the sliding rod 19 passes through the strip-shaped sliding holes 5; the sliding rod 19 slides in the strip-shaped sliding holes 5 to improve the stability of the sliding block 14 sliding in the sliding frame 3.

[0027] The mounting back plate 7 has mounting screw holes 6 at each corner, and the vision inspection camera 11 is located on both sides of the top of the brush plate 17. The mounting screw holes 6 and matching bolts on the mounting back plate 7 facilitate the installation of the entire device on the support frame, and the vision inspection camera 11 facilitates the recording of local parts of the produced plastic film.

[0028] The working principle of this utility model is as follows: The mounting screw holes 6 and matching bolts on the mounting back plate 7 facilitate the installation of the entire device on the support frame, located below the discharge port of the blown film machine. The plastic film produced by the blown film machine passes between the guide rollers 9, which function to level and guide it. The drooping plastic film passes between the brush plates 17. The visual inspection camera 11 facilitates the recording of local parts of the produced plastic film, and the recorded data is transmitted to a connected computer for remote monitoring of the appearance quality of the produced plastic film. When exudates appear on the surface, the on-site personnel are notified in a timely manner. The power supply to the electric hydraulic cylinder 1 is turned on, and the electric hydraulic cylinder 1 pushes the connecting block 4 forward, causing the sliding block 14 to slide towards each other within the sliding frame 3. This allows the cleaning bristles 18 on both sides to adhere tightly to the surface of the plastic film, cleaning the exudates as the plastic film moves downwards. This method is highly efficient and saves manpower and resources. The support spring 16 ensures better contact between the cleaning bristles 18 and the surface of the plastic film, and provides good cushioning to prevent damage to the plastic film.

[0029] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An online monitoring and cleaning device for blown film precipitates, including a mounting backplate (7), guide rollers (9), and a brush plate (17); characterized in that; A sliding frame (3) is bolted to one side of the bottom of the mounting back plate (7), and sliding blocks (14) are slidably connected to both ends of the sliding frame (3). Electric hydraulic cylinders (1) are mounted on both sides of the end of the sliding frame (3) via fixing plates. The output shafts of the electric hydraulic cylinders (1) are mounted with connecting blocks (4) via screws, and one side of the connecting blocks (4) is connected to the sliding blocks (14) via sliding rods (19). T-shaped support plates (15) are bolted to the outside of the sliding blocks (14). Brush plates (17) are connected at equal intervals to the inside of the T-shaped support plates (15) via support springs (16), and cleaning bristles (18) are glued to the inside of the brush plates (17) via waterproof curing adhesive. Bending rods (10) are welded to both sides of the end of the mounting back plate (7), and a visual inspection camera (11) is bolted to one end of the bending rods (10).

2. The on-line monitoring and cleaning device for blown film deposits according to claim 1, characterized in that: Both ends of the sliding frame (3) are fitted with PLC controllers (2) by screws. The output end of the PLC controller (2) is electrically connected to the input end of the electric hydraulic cylinder (1) by wires.

3. The online monitoring and cleaning device for blown film precipitates according to claim 1, characterized in that: The top two ends of the mounting back plate (7) are fitted with L-shaped positioning plates (8) by screws, and support rods (13) are welded onto the L-shaped positioning plates (8).

4. The on-line monitoring and cleaning device for blown film deposits according to claim 3, characterized in that: The support rod (13) is fitted with a guide roller (9) and the two ends of the guide roller (9) are provided with limit sleeves (12), which are fitted on the support rod (13).

5. The on-line monitoring and cleaning device for blown film deposits according to claim 1, characterized in that: The sliding frame (3) has strip-shaped sliding holes (5) on both sides, and the sliding rod (19) passes through the strip-shaped sliding holes (5).

6. The on-line monitoring and cleaning device for blown film deposits according to claim 1, characterized in that: Mounting screw holes (6) are provided at the corners of the mounting back plate (7), and the visual inspection camera (11) is located on both sides of the top of the brush plate (17).