A molding processing apparatus for a flame-retardant two-color film

Abstract

The utility model relates to thin film processing equipment technical field, concretely is a kind of forming processing equipment of flame-retardant bicolour film, the one side of cooling roller is fixedly arranged positioning box, the inboard of positioning box is equipped with the water scraping plate that fits cooling roller outer wall, the baffle that fits the both ends of cooling roller is equipped with the both ends of positioning box, the inside of positioning box is equipped with mounting groove, pull setting water collecting tank in mounting groove, the side of water collecting tank is equipped with the inclined plate that fits water scraping plate, the one end of positioning box is equipped with flow guide pipe, two flow guide pipes are communicated by the vertical setting vertical pipe, and the automatic scraping of the surface condensate of cooling roller, collection and discharge are realized by the collaborative design of water scraping plate, inclined plate, water collecting tank, flow guide pipe and vertical pipe, do not need artificial frequent wiping, avoid the shutdown loss caused by artificial cleaning, significantly improve the continuous production efficiency of flame-retardant bicolour film.

Description

Technical Field

[0001] This utility model relates to the field of thin film processing equipment technology, specifically to a molding and processing equipment for flame-retardant two-color film. Background Technology

[0002] In the molding and processing of flame-retardant two-color films, the cooling roller is one of the key pieces of equipment to achieve rapid curing and shaping of the film material and ensure its flame-retardant performance and the stability of the two-color layering. After the molten two-color co-extruded film material is formed by the extrusion die, it needs to be closely attached to the surface of the cooling roller. Heat exchange is carried out through the circulating cooling water inside the roller to rapidly cool the film material to below the glass transition temperature, thereby fixing the dimensional accuracy, surface flatness and interlayer adhesion strength of the film.

[0003] Because the surface temperature of the cooling roller is much lower than the ambient temperature when it is working, water vapor in the air easily condenses on the roller surface to form condensate. If the condensate is not removed in time, it will adhere to the roller surface or the film surface, causing defects such as watermarks and bubbles on the film surface. In severe cases, it will also affect the interlayer bonding of the two-color film and the uniformity of flame retardant distribution, reducing the product qualification rate. Currently, most cooling rollers rely on manual cleaning at regular intervals. This method requires additional labor costs. Having dedicated personnel to clean the rollers not only increases the burden on production and operation, but also makes it difficult to avoid the efficiency loss of manual operation. Utility Model Content

[0004] (a) Technical problems to be solved To address the shortcomings of existing technologies, this utility model provides a molding and processing equipment for flame-retardant dual-color films.

[0005] (II) Technical Solution To achieve the above objectives, the present invention provides the following technical solution: a molding and processing equipment for flame-retardant two-color film, including a worktable, two first support frames symmetrically arranged at the upper end of the worktable, two cooling rollers symmetrically arranged vertically between the two first support frames, and adapter pipes that penetrate through the first support frames and are rotatably connected to the first support frames via bearings at both ends of the cooling rollers. A positioning box is fixedly installed on one side of the cooling roller. A scraper blade that fits against the outer wall of the cooling roller is provided on the inner side of the positioning box. Baffles that fit against the two ends of the cooling roller are provided at both ends of the positioning box. An installation groove is provided inside the positioning box. A water collection tank is pulled out and installed in the installation groove. An inclined plate that fits against the scraper blade is provided on one side of the water collection tank. A guide pipe is provided at one end of the positioning box. Two guide pipes are connected through a vertically installed vertical pipe. A valve is provided at the bottom of the vertical pipe. A drain pipe that connects to the guide pipe is provided at the rear end of the water collection tank.

[0006] To facilitate the collection of condensate, the present invention includes the following improvements: the bottom of the vertical pipe passes through the workbench, a base plate is fixedly installed below the workbench, a water collection tank is placed on the upper end of the base plate, and the water outlet of the vertical pipe is located above the water collection tank.

[0007] To facilitate the assembly of the positioning box, the present invention includes the following improvement: both ends of the positioning box are fixed to the top of the workbench by a second support frame, and the bottom end of the second support frame is fixed to the top of the workbench by screws.

[0008] To facilitate the removal of the water collection tank from the mounting groove, the present invention includes an improvement where a handle is fixedly installed at the front end of the water collection tank.

[0009] To facilitate the connection between the drain pipe and the guide pipe, the present invention includes the following improvements: the guide pipe is fixed to the rear end of the positioning box, a sealing ring is provided on the inner wall of the guide pipe, and the drain pipe is inserted into the guide pipe and passes through the sealing ring.

[0010] Furthermore, the improvements of this utility model include that the guide pipe and the vertical pipe are integrated structures, the positioning box and the baffle are integrated structures, and both the guide pipe and the drainage pipe are made of metal pipes.

[0011] (III) Beneficial Effects Compared with the prior art, this utility model provides a molding and processing equipment for flame-retardant two-color film, which has the following beneficial effects: This equipment, through the coordinated design of a scraper, inclined plate, water collection tank, guide pipe, and vertical pipe, achieves automatic scraping, collection, and discharge of condensate on the surface of the cooling roller, eliminating the need for frequent manual wiping, avoiding downtime losses caused by manual cleaning, and significantly improving the continuous production efficiency of flame-retardant dual-color film.

[0012] The squeegee fits tightly against the outer wall of the cooling roller, and together with the baffles at both ends, forms a fully enclosed collection structure to prevent condensate from dripping onto the membrane surface, avoiding defects such as watermarks and bubbles, and ensuring the surface smoothness and flame retardant performance of the two-color membrane. Attached Figure Description

[0013] Figure 1 This is a first-view perspective three-dimensional structural diagram of the present invention; Figure 2 This is a second-view perspective three-dimensional structural diagram of the present invention; Figure 3 This utility model Figure 1 The main view; Figure 4 This utility model Figure 1 A magnified schematic diagram of the local structure at point A; Figure 5 This is a schematic diagram of the installation structure of the inclined plate in this utility model; Figure 6 This is a schematic diagram of the installation structure of the drainage pipe in this utility model; In the diagram: 1. Workbench; 2. First support frame; 3. Cooling roller; 4. Transfer pipe; 5. Second support frame; 6. Positioning box; 7. Scraper; 8. Mounting groove; 9. Water collection tank; 10. Inclined plate; 11. Drain pipe; 12. Guide pipe; 13. Vertical pipe; 14. Valve; 15. Base plate; 16. Water collection tank; 17. Handle. Detailed Implementation

[0014] 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.

[0015] Please see Figures 1-6 The present invention provides a molding and processing equipment for flame-retardant two-color film, including a workbench 1. Two first support frames 2 are symmetrically arranged on the upper end of the workbench 1. Two cooling rollers 3 are symmetrically arranged vertically between the two first support frames 2. Both ends of the cooling rollers 3 are provided with transfer pipes 4 that pass through the first support frames 2 and are rotatably connected to the first support frames 2 through bearings. The transfer pipes 4 are connected to the internal cavity of the cooling rollers 3. A positioning box 6 is fixedly installed on one side of the cooling roller 3. A scraper 7 that fits against the outer wall of the cooling roller 3 is provided on the inner side of the positioning box 6. Baffles that fit against the two ends of the cooling roller 3 are provided at both ends of the positioning box 6. An installation groove 8 is provided inside the positioning box 6. A water collection tank 9 is pulled out and installed in the installation groove 8. An inclined plate 10 that fits against the scraper 7 is provided on one side of the water collection tank 9. A guide pipe 12 is provided at one end of the positioning box 6. The two guide pipes 12 are connected by a vertically installed vertical pipe 13. A valve 14 is provided at the bottom of the vertical pipe 13. A drain pipe 11 that connects to the guide pipe 12 is provided at the rear end of the water collection tank 9.

[0016] To facilitate the collection of condensate, the present invention is improved in that the bottom of the vertical pipe 13 passes through the workbench 1, a base plate 15 is fixedly installed below the workbench 1, a water collection tank 16 is placed on the upper end of the base plate 15, and the water outlet of the vertical pipe 13 is located above the water collection tank 16.

[0017] (I) Equipment assembly and initial commissioning: Main frame construction: Two first support frames 2 are symmetrically fixed on the upper end of the workbench 1. The two ends of the cooling roller 3 are connected to the first support frames 2 through bearings, so that the cooling roller 3 can rotate. The adapter pipes 4 at both ends of the cooling roller 3 pass through the first support frames 2 and are respectively connected to the water inlet pipe and water return pipe of the external cooling system to form a cooling water circulation channel.

[0018] Installation of the 6-component positioning box: The two ends of the positioning box 6 are fixed above the workbench 1 by the second support frame 5, and the bottom end of the second support frame 5 is fixed to the upper end of the workbench 1 by screws.

[0019] The positioning box 6 is fixed above the workbench 1 by the second support frame 5, ensuring that the scraper 7 on the inner side of the positioning box 6 is in close contact with the outer wall of the cooling roller 3; the baffles at both ends of the positioning box 6 are in contact with the end face of the cooling roller 3 to prevent condensate from splashing.

[0020] Drainage system connection: The guide pipe 12 is fixed to the rear end of the positioning box 6. A sealing ring is provided on the inner wall of the guide pipe 12. The drain pipe 11 is inserted into the guide pipe 12 and passes through the sealing ring.

[0021] Install a guide pipe 12 at the rear end of the positioning box 6, with a sealing ring embedded in the inner wall of the guide pipe 12; install the water collection tank 9 inside the positioning box 6 by pulling it out through the mounting groove 8, so that the inclined plate 10 on one side of the water collection tank 9 fits against the bottom of the scraper 7, and the drain pipe 11 at the rear end is inserted into the guide pipe 12 and passes through the sealing ring; the guide pipes 12 of the two positioning boxes 6 are connected by a vertical pipe 13, the bottom of the vertical pipe 13 passes through the workbench 1, and the water outlet is aligned with the water collection tank 16 on the base plate 15.

[0022] Control component installation: Install valve 14 at the bottom of vertical pipe 13 and set the opening and closing frequency of valve 14 by timer; fix handle 17 at the front end of water collection tank 9 for easy pull-out operation.

[0023] (II) Flame-retardant dual-color film cooling and molding process: Cooling system start-up: Cooling water from the external cooling system flows into the interior of the cooling roller 3 through the transfer pipe 4 and returns through another transfer pipe 4, keeping the surface of the cooling roller 3 at a low temperature.

[0024] Membrane material conveying and cooling: After the molten flame-retardant two-color film is output from the extrusion die, it enters between two cooling rollers 3 arranged symmetrically on the upper and lower sides. The surface of the film material is closely attached to the cooling rollers 3. As the cooling rollers 3 rotate, the film material is rapidly cooled and shaped through heat exchange.

[0025] Automatic collection of condensate: When the cooling roller 3 rotates, the condensate on the surface is scraped off by the scraper 7 and slides down the scraper 7 to the inclined plate 10, and then guided by the inclined plate 10 to the water collection tank 9 for storage; when the timer triggers the valve 14 to open, the condensate in the water collection tank 9 flows into the vertical pipe 13 through the drain pipe 11 and the guide pipe 12, and finally flows into the water collection tank 16.

[0026] (III) Equipment maintenance and cleaning: A handle 17 is fixedly installed at the front end of the water collection tank 9.

[0027] The guide pipe 12 and the vertical pipe 13 are integrated structures, the positioning box 6 and the baffle are integrated structures, and both the guide pipe 12 and the drain pipe 11 are made of metal pipes.

[0028] Cleaning of water collection tank 9: When the liquid level in water collection tank 16 reaches the preset height or when regular maintenance is required, pull water collection tank 9 out of the mounting slot 8 of positioning box 6 through handle 17, and simultaneously pull drain pipe 11 out of guide pipe 12; after cleaning the impurities inside water collection tank 9 and the surface of inclined plate 10, reinsert it into mounting slot 8 to ensure that drain pipe 11 and guide pipe 12 are tightly connected through sealing ring.

[0029] System inspection: Regularly check whether the screw connection between the second support frame 5 and the worktable 1 is secure, whether the relative position of the positioning box 6 and the cooling roller 3 is offset, and ensure that the scraper 7 is always in contact with the roller surface; check whether the integrated structure of the guide pipe 12 and the vertical pipe 13 has any leakage, whether the sealing ring is aged, and ensure the sealing performance of the condensate collection system.

[0030] The equipment, through the coordinated design of the scraper 7, inclined plate 10, water collection tank 9, guide pipe 12 and vertical pipe 13, realizes the automatic scraping, collection and discharge of condensate on the surface of cooling roller 3, eliminating the need for frequent manual wiping, avoiding downtime losses caused by manual cleaning, and significantly improving the continuous production efficiency of flame-retardant dual-color film.

[0031] The timer controls the valve 14 to open periodically, so that the condensate is discharged into the water collection tank 16 at regular intervals, reducing the cost of manual operation and adapting to the needs of large-scale production.

[0032] The cooling roller 3 is connected to the external cooling system through the adapter pipe 4. The circulating cooling water evenly removes the heat from the film material. With the double cooling rollers 3 set symmetrically on the top and bottom, the film material is cooled simultaneously on both sides, ensuring the uniformity of flame retardant distribution and the stability of the two-color layering.

[0033] The guide pipe 12 and the vertical pipe 13 are made of integrated metal pipe, and the positioning box 6 and the baffle are integrated structures, which enhances the rigidity of the system and avoids deformation and leakage during long-term use; the metal material has strong corrosion resistance, adapts to the humid working conditions of the cooling environment, and extends the service life of the equipment.

[0034] The sealing ring is embedded in the inner wall of the guide pipe 12 to ensure the sealing of the drain pipe 11 when it is connected, and to prevent condensate leakage from polluting the working environment or affecting the production of the membrane material; the linkage design of valve 14 and timer can adjust the drainage frequency according to parameters such as production environment humidity and cooling roller 3 temperature, so as to achieve precise control of condensate collection.

[0035] Positioning box 6: Material: 304 stainless steel (5mm thick), integrally welded with the baffle; Structure: Semi-enclosed cover, with 7 slots for the wiper blade on the inner side (gap 0.5mm); Selection criteria: integrated structure prevents leakage, stainless steel is resistant to condensate corrosion, and the semi-enclosed design does not affect the rotation of cooling roller 3.

[0036] Squeegee 7: Material: EPDM rubber (Shore A70), with a stainless steel frame embedded in the back; Selection criteria: good rubber elasticity, no water residue after wiping; stainless steel frame to prevent deformation, service life ≥ 5000 hours.

[0037] Guide pipe 12 and vertical pipe 13: Material: 304 stainless steel (integrated welding, wall thickness 3mm); Sealing: A silicone sealing ring (compression amount 2mm) is embedded in the inner wall of the guide tube 12. Valve 14: Type: Electric ball valve (DN50, IP65 protection), equipped with a timer (accuracy ±1s); Parameters: Opening / closing time ≤ 2s, pressure resistance 1.6MPa; Selection criteria: Electric control is suitable for automated production, and the timer can be set to drain the water for 30 seconds every 30 minutes.

[0038] In the description herein, it should be noted that relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A molding and processing equipment for flame-retardant dual-color film, comprising a workbench (1), characterized in that: Two first support frames (2) are symmetrically arranged at the upper end of the workbench (1), and two cooling rollers (3) are symmetrically arranged between the two first support frames (2). The two ends of the cooling rollers (3) are provided with adapter pipes (4) that pass through the first support frames (2) and are rotatably connected to the first support frames (2) through bearings. A positioning box (6) is fixedly installed on one side of the cooling roller (3). A scraper (7) that fits against the outer wall of the cooling roller (3) is provided on the inner side of the positioning box (6). Baffles that fit against the two ends of the cooling roller (3) are provided at both ends of the positioning box (6). An installation groove (8) is provided inside the positioning box (6). A water collection tank (9) is pulled out and installed in the installation groove (8). An inclined plate (10) that fits against the scraper (7) is provided on one side of the water collection tank (9). A guide pipe (12) is provided at one end of the positioning box (6). The two guide pipes (12) are connected by a vertically installed vertical pipe (13). A valve (14) is provided at the bottom of the vertical pipe (13). A drain pipe (11) that connects to the guide pipe (12) is provided at the rear end of the water collection tank (9).

2. The molding and processing equipment for a flame-retardant dual-color film according to claim 1, characterized in that: The bottom of the vertical pipe (13) passes through the workbench (1), and a base plate (15) is fixedly installed below the workbench (1). A water collection tank (16) is placed on the upper end of the base plate (15), and the water outlet of the vertical pipe (13) is located above the water collection tank (16).

3. The molding and processing equipment for a flame-retardant dual-color film according to claim 2, characterized in that: The two ends of the positioning box (6) are fixed above the workbench (1) by the second support frame (5), and the bottom end of the second support frame (5) is fixed to the upper end of the workbench (1) by screws.

4. The molding and processing equipment for a flame-retardant dual-color film according to claim 3, characterized in that: A handle (17) is fixedly installed at the front end of the water collection tank (9).

5. The molding and processing equipment for a flame-retardant two-color film according to claim 4, characterized in that: The guide pipe (12) is fixed at the rear end of the positioning box (6). A sealing ring is provided on the inner wall of the guide pipe (12). The drain pipe (11) is inserted into the guide pipe (12) and passes through the sealing ring.

6. The molding and processing equipment for a flame-retardant two-color film according to claim 5, characterized in that: The guide pipe (12) and the vertical pipe (13) are integrated structures, the positioning box (6) and the baffle are integrated structures, and the guide pipe (12) and the drainage pipe (11) are both made of metal pipe.

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