Multi-layer co-extrusion PET plastic sheet production line
By introducing a water circulation system and scraping components into the multi-layer co-extruded PET plastic sheet production line, the problem of excessive moisture on the surface of PET plastic sheets has been solved, achieving uniform cooling and efficient drying, thereby improving production efficiency and resource utilization.
Patent Information
- Application Number
- CN202520058926.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-10
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2035-01-10
AI Technical Summary
Existing multilayer co-extruded PET plastic sheet production lines have excessive residual moisture on the surface of PET plastic sheets during the cooling and drying process, resulting in prolonged drying time and increased energy consumption.
The design incorporates a water tank, delivery pipe, nozzle, collection box, circulation pipeline, and circulating water pump to achieve uniform cooling of both sides of the PET plastic sheet. Excess water is removed by a scraping component, and impurities are filtered out by a filter screen to ensure clean water quality and stable cooling.
It effectively reduces the temperature difference and moisture residue on the sheet surface, improves production efficiency, saves resources, reduces the burden on drying equipment, and enhances the practicality of the production line.
Smart Images
Figure CN223849924U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to a kind of PET plastic sheet production technical field, more specifically, it is particularly related to multilayer co-extrusion PET plastic sheet production line. BACKGROUND
[0002] PET sheet, full name is polyethylene terephthalate sheet, is a thermoplastic polyester material. It is made of polyethylene terephthalate (PET) resin as raw material, extruded by extruder high temperature, then through different molding technology to make sheet material with specific thickness and width.
[0003] Based on the above, the present inventors found that the following problems exist: the existing multilayer co-extrusion PET plastic sheet production line generally adopts spray cooling technology to cool the PET plastic sheet, and then uses a drying oven to perform drying operation. However, there is a significant problem in this process: the water content on the surface of the PET plastic sheet is often excessive, which directly prolongs the drying time, thereby restricting the production efficiency and increasing unnecessary energy consumption.
[0004] Therefore, in view of the above, the existing structure and defects are improved, and a multilayer co-extrusion PET plastic sheet production line is provided to achieve a more practical value. INVENTION CONTENTS
[0005] The purpose and effect of the multilayer co-extrusion PET plastic sheet production line are achieved by the following specific technical means:
[0006] The multilayer co-extrusion PET plastic sheet production line comprises a workbench, an extruder is installed on one side of the top of the workbench, a spray box is installed on one side of the extruder, a spray assembly is installed inside the spray box, a group of fixed plates I is installed on one side of the spray assembly, a scraping assembly is installed between the fixed plates I, a drying oven is installed on one side of the scraping assembly, a through slot is formed below the spray box and the scraping assembly, a collection box is arranged below the through slot, a group of fixed plates II is installed on one side of the drying oven, a winding roller is installed between the fixed plates II, a motor is installed on one side of the fixed plates II, and the output end of the motor is connected with the winding roller.
[0007] Further, the spray assembly comprises a water tank installed on the top of the spray box, a conveying pipe is arranged on one side of the water tank, a water pump is arranged on the conveying pipe, and a group of branch pipes is arranged at one end of the conveying pipe, the branch pipes are located inside the spray box, and a plurality of spray heads are arranged on the surface of the branch pipes.
[0008] Further, one side of the collecting box is provided with a circulating pipeline, a circulating water pump is installed on the circulating pipeline, and one end of the circulating pipeline is connected with the water tank.
[0009] Further, the scraping assembly comprises a sliding groove formed in the fixed plate, a guide rod is installed in the sliding groove, a sliding block and a spring are sleeved on the guide rod, one side of the sliding block is connected with the spring, the other end of the spring is connected with the inner wall of the sliding groove, a first scraper is installed between the sliding blocks, and a second scraper is installed below the first scraper.
[0010] Further, the collecting box is internally provided with a groove, a connecting plate is installed in the groove, a mounting frame is installed on one side of the connecting plate, a filter screen is installed in the mounting frame, a plurality of guide grooves are formed in the collecting box, and the mounting frame is matched with the guide grooves.
[0011] Further, a handle is installed on one side of the connecting plate.
[0012] Further, the spraying box and the drying box are both provided with feeding ports and discharging ports.
[0013] Compared with the prior art, the utility model has the advantages of the following:
[0014] When the plastic sheet is cooled, the water pump is started, the water in the water tank is conveyed to the spray head through the conveying pipe, the surface of the plastic sheet is cooled by the spray head, then the water flows into the collecting box through the through groove, the filtered water is filtered by the filter screen, then the circulating water pump is started, and the water in the collecting box is conveyed to the water tank through the circulating pipeline.
[0015] When the plastic sheet is cooled, the water pump is started, the water in the water tank is conveyed to the spray head through the conveying pipe, the surface of the plastic sheet is cooled by the spray head, then the water flows into the collecting box through the through groove, the filtered water is filtered by the filter screen, then the circulating water pump is started, and the water in the collecting box is conveyed to the water tank through the circulating pipeline.
[0016] Through cooperation of the groove, the connecting plate, the mounting frame, the filter screen and the guide groove, the filter screen can filter the mineral matter and impurities in water, when the device is used for a long time, the filter screen needs to be cleaned, the handle is pulled, the filter screen is taken out from the collecting box, and then the impurities on the filter screen can be cleaned, through the above design, the filtering effect of the filter screen is improved, the cooling effect is not affected due to impurity blockage, the water quality is ensured to be clean, and the stability of cooling is improved. BRIEF DESCRIPTION OF DRAWINGS
[0017] Figure 1 is a three-dimensional schematic view of the multilayer co-extrusion PET plastic sheet production line of the utility model.
[0018] Figure 2 is a planar schematic view of the spraying assembly of the multilayer co-extrusion PET plastic sheet production line of the utility model.
[0019] Figure 3 is a planar schematic view of the scraping assembly of the multilayer co-extrusion PET plastic sheet production line of the utility model.
[0020] Figure 4 is a three-dimensional schematic view of the multilayer co-extrusion PET plastic sheet production line of the utility model. Figure 1 is an enlarged schematic view of point A in the multilayer co-extrusion PET plastic sheet production line of the utility model.
[0021] Figure 5 is a three-dimensional schematic view of the collecting box of the multilayer co-extrusion PET plastic sheet production line of the utility model.
[0022] In the drawings, the correspondence between the component names and the drawing numbers is as follows:
[0023] 1, workbench;2, extruder;3, spraying box;4, fixed plate one;5, drying box;6, through groove;7, collecting box;8, winding roller;9, motor;10, water tank;11, conveying pipe;12, branch pipeline;13, nozzle;14, circulating pipeline;15, chute;16, guide rod;17, sliding block;18, spring;19, scraper one;20, scraper two;21, groove;22, connecting plate;23, filter screen;24, guide groove;25, handle;26, discharge port. DETAILED DESCRIPTION
[0024] The embodiments of the utility model are further described in detail below in combination with the drawings and examples. The following examples are used to illustrate the utility model, but cannot be used to limit the scope of the utility model.
[0025] In the description of the utility model, unless otherwise specified, the meaning of "multiple" is two or more than two;The orientation or position relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like is the orientation or position relationship shown based on the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.In addition, the terms "first", "second", "third" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance.
[0026] In the description of the utility model, it should be pointed out that, unless otherwise specified and limited, the terms "connected", "connected" should be understood broadly, for example, it can be fixedly connected, can be detachably connected, or integrally connected;It can be mechanically connected, or electrically connected;It can be directly connected, or indirectly connected through an intermediate medium.For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.
[0027] Embodiment:
[0028] As shown in the accompanying Figure 1 to the accompanying Figure 5 As shown:
[0029] The utility model provides multilayer co -extrusion PET plastic sheet production line, including workbench 1, the top one side of workbench 1 is installed extruder 2, one side of extruder 2 is installed spray tank 3, the inside of spray tank 3 is installed spray subassembly, one side of spray subassembly is installed a group of fixed plate no. 4, the fixed plate no. 4 between installation removes subassembly, one side of removes subassembly is installed drying oven 5, the below of spray tank 3 and removes subassembly all is set up with the tunnel 6, the below of tunnel 6 is equipped with collection tank 7, one side of drying oven 5 is installed a group of fixed plate no. 2, the fixed plate no. 2 between installation is rolled up 8, one side of fixed plate no. 2 is installed motor 9, the output of motor 9 is connected with the rolling up 8.
[0030] The spraying assembly comprises a water tank 10 installed on the top of the spraying box 3, one side of the water tank 10 is provided with a conveying pipe 11, the conveying pipe 11 is provided with a water pump, one end of the conveying pipe 11 is provided with a group of branch pipes 12, the branch pipes 12 are located in the inside of the spraying box 3, the surface of the branch pipes 12 is provided with a plurality of spray heads 13, through the cooperation of the water tank 10, the conveying pipe 11, the water pump, the branch pipes 12, the spray heads 13, the collecting box 7, the circulating pipe 14 and the circulating water pump, when the plastic sheet is needed to be cooled, the water pump is started, the conveying pipe 11 conveys the water in the water tank 10 to the spray heads 13, the spray heads 13 cool the surface of the plastic sheet, then the water flows into the collecting box 7 through the through groove 6, the filter screen 23 filters the cooled water, then the circulating water pump is started, the circulating pipe 14 can convey the water in the collecting box 7 to the water tank 10, through the above design, the two surfaces of the PET plastic sheet can be uniformly cooled at the same time, the surface temperature difference of the sheet can be effectively reduced, the water resource can be recycled, which is beneficial to save resources and reduce waste.
[0031] The collecting box 7 is provided with a circulating pipe 14 on one side, the circulating pipe 14 is provided with a circulating water pump, and one end of the circulating pipe 14 is connected with the water tank 10.
[0032] The scraping assembly comprises a sliding groove 15 opened in the fixed plate 4, a guide rod 16 is installed in the inside of the sliding groove 15, a sliding block 17 and a spring 18 are sleeved on the guide rod 16, one side of the sliding block 17 is connected with the spring 18, the other end of the spring 18 is connected with the inner wall of the sliding groove 15, a scraper 19 is installed between the sliding blocks 17, a scraper 20 is installed below the scraper 19, through the cooperation of the sliding groove 15, the guide rod 16, the sliding block 17, the spring 18, the scraper 19 and the scraper 20, when the plastic sheet is cooled, the plastic sheet passes between the scraper 19 and the scraper 20, the plate surface contacts with the plastic sheet, the excess water on the plastic sheet can be scraped off, then falls into the collecting box 7 through the through groove 6, and under the cooperation of the spring 18, the sliding block 17 can move on the guide rod 16, so as to drive the scraper 19 to move, thereby the water on the plastic sheet with different thicknesses can be scraped off, through the above design, the excess water on the surface of the plastic sheet can be scraped off, which provides an important basis for the next drying process, reduces the amount of water evaporated in the drying process, thereby reducing the burden of the drying equipment, and further improving the practicability.
[0033] The inside of the collecting box 7 is provided with a recess 21, the recess 21 is internally provided with a connecting plate 22, one side of the connecting plate 22 is provided with a mounting frame, the inside of the mounting frame is provided with a filter screen 23, the inside of the collecting box 7 is provided with a group of guide grooves 24, the mounting frame is matched with the guide grooves 24, through the cooperation of the recess 21, the connecting plate 22, the mounting frame, the filter screen 23 and the guide grooves 24, the filter screen 23 can filter the minerals and impurities in the water, when the device is used for a long time, the filter screen 23 needs to be cleaned, the handle 25 is pulled, the filter screen 23 is taken out from the collecting box 7, the impurities on the filter screen 23 can be cleaned, through the above design, the filtering effect of the filter screen 23 is improved, the cooling effect of the spray head 13 is not affected by the impurities, the water quality is ensured to be clean, and the stability of cooling is improved.
[0034] The one side of the connecting plate 22 is provided with a handle 25.
[0035] The two sides of the spraying box 3 and the drying box 5 are provided with feeding ports and discharging ports 26.
[0036] The specific use mode and effect of the embodiment are as follows:
[0037] In the use process of the utility model, first of all, the integrity of the device is confirmed, plastic sheet material can be extruded through the extruder 2, then the plastic sheet material passes through the spraying box 3, the scraping assembly and the drying box 5 in sequence, then one end of the plastic sheet material is wound on the winding roller 8, the motor 9 is started, the winding roller 8 winds the plastic sheet material, the water pump is started, the conveying pipe 11 conveys the water in the water tank 10 to the spray head 13, the spray head 13 cools the surface of the plastic sheet material, then the water flows into the collecting box 7 through the through groove 6, the filter screen 23 filters the water after cooling, through the starting of the circulating water pump, the circulating pipeline 14 can convey the water in the collecting box 7 to the water tank 10, when the cooling of the plastic sheet material is finished, the scraper one 19 and the scraper two 20 contact the plastic sheet material, the excess water on the plastic sheet material can be scraped off, then the water falls into the collecting box 7 through the through groove 6, at the same time, under the cooperation of the spring 18, the sliding block 17 can move on the guide rod 16, so as to drive the scraper one 19 to move, and then the water on the plastic sheet material of different thicknesses can be scraped off, which provides an important basis for the next drying process, then the drying box 5 can dry the residual water on the plastic sheet material, greatly reduces the amount of water evaporated in the drying process, thereby reducing the burden of the drying equipment, and further improving the practicability.
[0038] The embodiments of the present application are given for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present application to the forms disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. Embodiments were chosen and described in order to best explain the principles of the present application and its practical application, and to thereby enable others skilled in the art to best utilize the present application with various modifications as are suited to the particular use contemplated.
Claims
1. Multilayer coextruded PET plastic sheet production line, comprising a workbench (1), characterized by the fact that: The top side of the workbench (1) is provided with an extruder (2), one side of the extruder (2) is provided with a spraying box (3), the inside of the spraying box (3) is provided with a spraying assembly, one side of the spraying assembly is provided with a group of fixed plates (4), the fixed plates (4) are provided with a scraping assembly, one side of the scraping assembly is provided with a drying box (5), the lower sides of the spraying box (3) and the scraping assembly are provided with a through slot (6), the lower side of the through slot (6) is provided with a collecting box (7), one side of the drying box (5) is provided with a group of fixed plates (4), the fixed plates (4) are provided with a winding roller (8), one side of the fixed plates (4) is provided with a motor (9), and the output end of the motor (9) is connected with the winding roller (8).
2. The multilayer coextruded PET plastic sheet production line as claimed in claim 1, characterized in that: The spraying assembly comprises a water tank (10) arranged on the top of the spraying box (3), one side of the water tank (10) is provided with a conveying pipe (11), the conveying pipe (11) is provided with a water pump, and one end of the conveying pipe (11) is provided with a group of branch pipes (12), the branch pipes (12) are arranged in the spraying box (3), and the surfaces of the branch pipes (12) are provided with a plurality of spray heads (13).
3. The multilayer coextruded PET plastic sheet production line as claimed in claim 2, characterized in that: One side of the collecting box (7) is provided with a circulating pipe (14), the circulating pipe (14) is provided with a circulating water pump, and one end of the circulating pipe (14) is connected with the water tank (10).
4. The multilayer coextruded PET plastic sheet production line as claimed in claim 3, characterized in that: The scraping assembly comprises a sliding groove (15) arranged in the fixed plate (4), the inside of the sliding groove (15) is provided with a guide rod (16), the guide rod (16) is sleeved with a sliding block (17) and a spring (18), one side of the sliding block (17) is connected with the spring (18), the other end of the spring (18) is connected with the inner wall of the sliding groove (15), and the sliding blocks (17) are provided with a first scraper (19) and a second scraper (20).
5. The multilayer coextruded PET plastic sheet production line as claimed in claim 4, characterized in that: The inside of the collecting box (7) is provided with a recess (21), the recess (21) is provided with a connecting plate (22), one side of the connecting plate (22) is provided with a mounting frame, the inside of the mounting frame is provided with a filter screen (23), and the inside of the collecting box (7) is provided with a group of guide grooves (24) matched with the mounting frame.
6. The multilayer coextruded PET plastic sheet production line as claimed in claim 5, characterized in that: One side of the connecting plate (22) is provided with a handle (25).
7. The multilayer coextruded PET plastic sheet production line as claimed in claim 6, characterized in that: The spraying box (3) and the drying box (5) are provided with feeding ports and discharging ports (26) on the two sides.