Wood-plastic profile co-extrusion cooling device

Abstract

This utility model relates to the technical field of wood-plastic composite profile production equipment, and discloses a co-extrusion cooling device for wood-plastic composite profiles. The device includes an embossing machine, a conveyor roller, a splash guard, a spray nozzle, a liquid receiving tank, and a scraper. The output end of the embossing machine is equipped with a conveyor roller for conveying the embossed wood-plastic composite flooring. A splash guard is located above the conveyor roller, and a spray nozzle is installed on top of the splash guard. The bottom of the spray nozzle has evenly distributed atomizing nozzles that can uniformly cool the flooring surface. A liquid receiving tank is located at the bottom of the conveyor roller, with an internal inclined platform connected to an output pipe for centralized collection of coolant. A scraper is located on one side of the splash guard, which, through counterweight, thoroughly removes residual liquid from the flooring surface. This device can effectively improve cooling efficiency, reduce liquid splashing and residue, facilitate coolant recycling, and ensure high efficiency and high-quality finished wood-plastic composite flooring processing.

Description

Technical Field

[0001] This utility model belongs to the technical field of wood-plastic profile production equipment, specifically relating to a wood-plastic profile co-extrusion cooling device. Background Technology

[0002] Wood-plastic composites, a new type of environmentally friendly material that combines the advantages of both wood and plastic, have been widely used in building decoration fields such as flooring and wall panels in recent years. The production process of wood-plastic flooring typically involves co-extrusion molding, surface embossing, cooling, and cutting. Because the co-extrusion and embossing processes involve high temperatures, the molded wood-plastic flooring must be effectively cooled within a short time to ensure the smooth progress of subsequent processes and the dimensional stability and surface quality of the finished product.

[0003] Currently, the cooling process for wood-plastic composite profiles often employs air cooling or simple water spray devices. Air cooling has limited cooling speed, making it difficult to meet the demands of high-capacity production lines; while traditional water spray cooling, although effective, generally suffers from uneven coolant spraying, severe liquid splashing, and excessive coolant residue on the floor surface. On the one hand, uneven spraying leads to low cooling efficiency, easily causing quality defects such as floor warping and deformation; on the other hand, coolant splashing not only affects the cleanliness and safety of equipment and the production environment but also increases coolant waste. If residual coolant on the floor surface is not promptly scraped off, it will cause inconvenience to subsequent cutting and packaging processes, and may even affect the appearance and performance of the finished product.

[0004] Furthermore, existing cooling devices are not well-designed in terms of coolant collection and recycling, easily leading to liquid leakage and incomplete collection, which increases environmental pressure and operating costs. In actual production, how to achieve efficient and uniform cooling of the molded flooring, effectively collect and discharge coolant during the cooling process, and thoroughly remove residual liquid from the flooring surface has become an urgent technical problem to be solved.

[0005] In summary, existing wood-plastic profile cooling devices have many shortcomings, such as low cooling efficiency, uneven spraying, liquid splashing, incomplete removal of residual liquid, and inconvenience in collecting and utilizing coolant. Utility Model Content

[0006] In view of the problems existing in the prior art, the purpose of this utility model is to provide a wood-plastic profile co-extrusion cooling device. This device has a perfect structure, high efficiency, and is easy to maintain, so as to meet the higher requirements of modern wood-plastic flooring production lines for product quality and production efficiency.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A wood-plastic composite co-extrusion cooling device includes an embossing machine, a conveying roller is provided on one side of the output end of the embossing machine, the conveying roller is used to convey the embossed wood-plastic flooring, and a cooling mechanism is provided on the conveying roller for cooling down the wood-plastic flooring.

[0009] The cooling mechanism includes a splash guard located above the conveyor roller, with a spray nozzle for spraying coolant on the top of the splash guard and a receiving tank for collecting coolant at the bottom of the conveyor roller.

[0010] A squeegee is provided on one side of the splash guard, which is used to remove water from the surface of the wood-plastic floor.

[0011] Furthermore, the top of the splash guard is provided with a skylight, the spraying component is installed inside the skylight, and a baffle is provided on the upper end surface of the spraying component; when the spraying component is installed, the spraying component is located inside the skylight, and the baffle seals the skylight.

[0012] Furthermore, atomizing nozzles are evenly distributed at the bottom of the spraying component;

[0013] The top of the spraying device is provided with a connector for connecting pipelines.

[0014] Furthermore, support plates are fixedly connected to the bottom of both ends of the splash shield, and the bottom of the support plates rests against the liquid receiving tank;

[0015] The conveying roller passes between the support plates.

[0016] Furthermore, the liquid receiving chamber has an inclined platform at its bottom, and an output pipe is provided at one end of the liquid receiving chamber, with the output pipe located at the lower part of the inclined platform.

[0017] Furthermore, a plug-in plate is fixedly connected to one side of the splash guard;

[0018] The upper end face of the wiper is fixedly connected with a positioning post and a pressing post, and the positioning post and the pressing post pass through the plug-in plate.

[0019] The positioning posts are symmetrically distributed on both sides of the pressing post;

[0020] The upper end face of the plug-in plate is provided with a plug-in hole, and the positioning post and the pressing post pass through the plug-in plate.

[0021] Furthermore, a pressure cap is fitted on the pressure column, a counterweight is fitted on the pressure cap, and a retaining ring is fixedly connected to the bottom outer side of the pressure cap, with the counterweight abutting against the retaining ring.

[0022] Furthermore, the cross-section of the wiper component is set as an inverted triangle, and bending grooves are equally spaced on both sides of the wiper component.

[0023] Compared with the prior art, the beneficial effects of this utility model are:

[0024] This device achieves efficient cooling of wood-plastic composite flooring after embossing by installing a conveyor roller at the output end of the embossing machine and arranging a splash guard and spray nozzle above the conveyor roller. The spray nozzle uses an atomizing nozzle structure, which can evenly spray coolant onto the surface of the wood-plastic composite flooring, thereby avoiding quality problems such as localized overheating, warping, and deformation caused by uneven spraying in traditional cooling devices, significantly improving product consistency and yield.

[0025] The application of splash guards effectively curbs coolant splashing, avoiding environmental pollution and safety hazards in the production area, and ensuring the cleanliness of the work area and the normal operation of equipment. After the coolant is sprayed, excess liquid can be smoothly collected in the receiving tank and automatically flow into the output pipe through the internal inclined platform, completing the collection and discharge of coolant. This design solves problems such as incomplete coolant recovery and leakage pollution, which is conducive to the subsequent recycling of coolant, reduces operating costs, and improves the environmental protection level of the production line.

[0026] To thoroughly remove residual coolant from the surface of wood-plastic composite flooring, this device incorporates a well-designed squeegee on one side of the splash guard. The squeegee is fixed to the connector plate via positioning and pressure posts. The pressure cap and counterweight design ensure the squeegee maintains appropriate downward pressure, guaranteeing complete removal of liquid from the floor surface. The inverted triangular cross-section and evenly spaced bending grooves effectively conform to the subtle undulations of the floor surface, further preventing residual liquid. This structural innovation eliminates the problem of difficult-to-clean residual liquid during the floor cooling process, which affects subsequent cutting, packaging, and finished product quality, ensuring high production line efficiency and a superior finished product appearance. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of this utility model;

[0028] Figure 2 This is a schematic diagram of the cooling mechanism of this utility model;

[0029] Figure 3 This is a schematic diagram of the structure of the splash guard of this utility model;

[0030] Figure 4 This is a schematic diagram of the liquid receiving chamber of this utility model;

[0031] Figure 5 This is a schematic diagram of the structure of the spraying component of this utility model. Figure 1 ;

[0032] Figure 6 This is a schematic diagram of the structure of the spraying component of this utility model. Figure 2 ;

[0033] Figure 7This is a schematic diagram of the structure of the wiper component of this utility model.

[0034] The attached diagram lists the components represented by each number as follows:

[0035] 1. Embossing machine; 11. Conveyor rollers;

[0036] 2. Splash guard;

[0037] 21. Skylight; 22. Support plate; 23. Connecting plate; 231. Connecting hole;

[0038] 3. Liquid receiving tank;

[0039] 31. Output tube; 32. Inclined platform;

[0040] 4. Spraying components;

[0041] 41. Connector; 42. Baffle; 43. Atomizing nozzle;

[0042] 5. Wiper components;

[0043] 51. Bending groove; 52. Positioning post; 53. Pressing post; 54. Pressing cap; 541. Retaining ring; 55. Counterweight. Detailed Implementation

[0044] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.

[0045] Example 1:

[0046] See Figure 1-7A wood-plastic composite co-extrusion cooling device includes an embossing machine 1. A conveyor roller 11 is installed on one side of the output end of the embossing machine 1. The conveyor roller 11 is used to convey the embossed wood-plastic flooring. A cooling mechanism is installed on the conveyor roller 11 to cool the wood-plastic flooring. The cooling mechanism, in conjunction with a splash guard 2, a spray nozzle 4, and a liquid receiving tank 3, achieves efficient cooling and liquid collection of the flooring. The splash guard 2 is positioned above the conveyor roller 11, covering the cooling operation area and effectively preventing cooling liquid from splashing into the external environment of the production line, thereby improving site cleanliness and operational safety. A spray nozzle 4 is installed on the top of the splash guard 2. 4. It can atomize and evenly spray coolant onto the floor surface to achieve efficient cooling; the bottom of the conveyor roller 11 is equipped with a liquid receiving tank 3 to collect excess coolant from the surface of the wood-plastic floor and the cooling operation area, which is convenient for subsequent unified discharge and recycling; a squeegee 5 is provided on one side of the splash guard 2, which is specifically used to thoroughly scrape off the residual coolant from the surface of the wood-plastic floor, ensuring that the surface of the finished floor is clean, which is conducive to the smooth progress of subsequent cutting, packaging and other processes; the whole device realizes the organic combination of functions such as embossing, cooling, water removal and liquid collection, which significantly improves the automation and cleanliness level of the wood-plastic profile production line.

[0047] See Figure 1-3 The top of the splash guard 2 is provided with a skylight 21, and the spraying component 4 is installed inside the skylight 21. A baffle 42 is provided on the upper end face of the spraying component 4. The skylight 21 serves as the installation port for the spraying component 4, facilitating its assembly and maintenance. After the spraying component 4 is installed inside the skylight 21, the baffle 42 can effectively seal the skylight 21, preventing coolant leakage and external impurities from entering the cooling mechanism. This structure improves the sealing performance and maintenance convenience of the coolant spraying system, while ensuring the high efficiency and environmental friendliness of the spraying operation.

[0048] See Figure 5-6 The bottom of the spraying component 4 is evenly distributed with atomizing nozzles 43. The atomizing nozzles 43 are arranged along the bottom of the spraying component 4, which can atomize the coolant into fine droplets and spray them evenly on the surface of the wood-plastic floor, greatly improving the cooling efficiency and avoiding the problems of local temperature difference and surface residual liquid caused by concentrated flow of coolant. The top of the spraying component 4 is provided with a connector 41 for connecting the pipeline. The connector 41 realizes a reliable connection with the external coolant supply pipeline, providing a passage for continuous liquid supply to the spraying component 4 and ensuring the continuity and stability of the cooling process.

[0049] See Figure 1-4Both ends of the splash guard 2 are fixedly connected to support plates 22, and the bottom of the support plates 22 rests against the liquid receiving tank 3. The support plates 22 securely install the splash guard 2 above the liquid receiving tank 3 through structural cooperation, which enhances the stability of the overall structure and prevents the splash guard 2 from shifting or loosening due to external forces such as vibration during operation. The conveying roller 11 passes through the support plates 22, so that the embossed floor can smoothly enter the cooling station and receive the full-process cooling and dewatering operation.

[0050] See Figure 4 The liquid receiving tank 3 has an inclined platform 32 at its bottom, and an output pipe 31 at one end of the liquid receiving tank 3, with the output pipe 31 located at the lower part of the inclined platform 32. The inclined platform 32, by setting an inclined surface, allows the coolant to automatically collect to the lowest point under the action of gravity, which facilitates the rapid discharge of the coolant through the output pipe 31, achieving efficient liquid collection and recycling, effectively preventing coolant residue and overflow inside the tank, and improving the overall cleanliness and environmental performance of the production line.

[0051] See Figure 2 , Figure 3 and Figure 7 A connector plate 23 is fixedly connected to one side of the splash guard 2; a positioning post 52 and a pressing post 53 are fixedly connected to the upper end face of the wiper 5, and the positioning post 52 and the pressing post 53 penetrate the connector plate 23; the positioning post 52 is symmetrically distributed on both sides of the pressing post 53; a connector hole 231 is opened through the upper end face of the connector plate 23, and the positioning post 52 and the pressing post 53 penetrate the connector plate 23; this structure allows the wiper 5 to be easily installed on one side of the splash guard 2, the positioning post 52 achieves left and right positioning, and the pressing post 53 achieves vertical pressing of the wiper 5, ensuring that the wiper 5 is in full contact with the floor surface and generates appropriate pressure, thereby improving the effect of wiping away coolant.

[0052] See Figure 7 A pressure cap 54 is fitted on the pressure column 53, and a counterweight 55 is fitted on the pressure cap 54. A retaining ring 541 is fixedly connected to the bottom outer side of the pressure cap 54, and the counterweight 55 rests against the retaining ring 541. The pressure cap 54 and the counterweight 55 provide vertical gravity for the wiper component 5. The pressure cap 54 is fixed to the wiper component 5 through the pressure column 53. The counterweight 55 increases the overall clamping force. The retaining ring 541 acts as a limiting component to prevent the counterweight 55 from falling off and shifting, ensuring that the wiper component 5 maintains a stable wiping pressure during operation and improving the thoroughness of coolant removal.

[0053] See Figure 7The cross-section of the squeegee 5 is set as an inverted triangle, and the two sides of the squeegee 5 are equally spaced with bending grooves 51. The inverted triangular cross-section helps to concentrate the squeegee pressure on the floor surface and improve the squeegee efficiency. The bending grooves 51 can increase the smoothness and adaptability of the squeegee surface, so that the squeegee 5 can better fit the slight undulations of the floor surface and prevent dead corners and residual liquid. This design effectively improves the cleanliness of the wood-plastic floor surface treatment and creates favorable conditions for subsequent processing and quality improvement.

[0054] Example 2:

[0055] See Figure 1-7 Based on the above basic structure, this embodiment further optimizes and supplements the specific operation mode of the cooling mechanism and some unresolved details. The cooling mechanism mainly includes a splash guard 2, a spray component 4, an atomizing nozzle 43, a connector 41, a conveying roller 11, a liquid receiving tank 3, an inclined platform 32, an output pipe 31, a scraper component 5, a plug plate 23, a positioning column 52, a pressing column 53, a pressing cap 54, a counterweight 55, a retaining ring 541, and auxiliary components such as auxiliary sealing components and splash guard fastening screws.

[0056] During operation, the embossed wood-plastic flooring is first fed into the cooling zone at a uniform speed by the conveyor roller 11. The conveyor roller 11 is made of corrosion-resistant stainless steel and has an anti-slip coating on the outer surface to ensure that the wood-plastic flooring is transported smoothly and is not corroded by moisture. The splash guard 2 is firmly fixed above the liquid receiving tank 3 by the support plates 22 at both ends. The guard is made of transparent high-strength polycarbonate material, which allows the operator to observe the internal spraying and cooling status in real time.

[0057] The spray nozzle 4 is installed inside the top skylight 21 of the splash guard 2. The spray nozzle 4 is connected to an external liquid supply pipeline via its top connector 41. The liquid supply pipeline is equipped with a pressure regulating valve and a liquid filter, which can adjust the coolant flow and pressure according to process requirements and effectively prevent impurities from clogging the nozzles. Multiple atomizing nozzles 43 are evenly distributed at the bottom of the spray nozzle 4. These atomizing nozzles 43 employ a ceramic nozzle structure, which is wear-resistant and corrosion-resistant. They can atomize high-pressure coolant into extremely fine water droplets, which are then evenly distributed in a fan shape across the entire surface of the wood-plastic composite flooring, effectively reducing the temperature of the board.

[0058] During spraying operations, the baffle 42 at the top of the splash shield 2 works in conjunction with the skylight 21 to form a reliable seal, preventing coolant from splashing upwards. The outer perimeter of the splash shield 2 is sealed with silicone sealing strips to further enhance overall sealing performance. Excess coolant flows along the floor surface into the receiving tank 3 below the splash shield 2. The inclined platform 32 at the bottom of the receiving tank 3 is designed with a certain angle, allowing the coolant to naturally collect at the output pipe 31, from which it flows into the recovery system or discharge pipeline, ensuring site cleanliness and coolant recycling.

[0059] To thoroughly remove residual coolant from the surface of the flooring, the wiper component 5 is connected to the side wall of the splash guard 2 via a plug-in plate 23. The plug-in structure employs a quick-clamping and sealing combination design for easy disassembly and maintenance. A pressure cap 54 and a counterweight 55 are mounted on the pressure column 53 of the wiper component 5. The counterweight 55 is made of high-density alloy, providing sufficient pressure to ensure the wiper component 5 remains firmly in contact with the floor surface. The inverted triangular cross-section and the bending groove 51 structure can flexibly adapt to wood-plastic composite flooring of different thicknesses and surface morphologies, achieving efficient water removal.

[0060] In addition, to prevent coolant from seeping into the bearings of the conveyor roller 11 during transport, both ends of the conveyor roller 11 are equipped with waterproof labyrinth seals and corrosion-resistant end caps, extending the service life of the conveyor roller 11. A liquid level observation window is added to the lower part of the outer wall of the liquid receiving tank 3, allowing the operator to monitor the coolant collection in real time and prevent overflow. The entire cooling mechanism is equipped with an independent maintenance port and a quick-release spray structure for easy maintenance and cleaning.

[0061] Compared with traditional cooling devices, this embodiment significantly improves the consistency, reliability, and maintainability of wood-plastic profile cooling and surface treatment through measures such as multi-point atomized spraying, fully sealed enclosure, efficient water scraping, automatic collection, and auxiliary structural optimization, ensuring the smooth progress of subsequent processes and continuous improvement of finished product quality.

[0062] The working principle of this utility model is as follows:

[0063] After the co-extrusion molding and embossing of the wood-plastic composite flooring are completed, the flooring is continuously conveyed along the production line direction by conveyor rollers 11. A splash guard 2 installed above the conveyor rollers 11 effectively shields the coolant during production, preventing it from splashing into the external environment and improving the cleanliness and safety of the work area. The spray nozzles 4 of the cooling mechanism are installed inside the skylight 21 at the top of the splash guard 2. The spray nozzles 4 are connected to the external coolant pipeline through their top connectors 41. Evenly distributed atomizing nozzles 43 at the bottom spray the wood-plastic composite flooring surface with atomized cooling, ensuring uniform coverage of the flooring surface. A baffle 42 at the top of the spray nozzles 4 seals the skylight 21 during installation to prevent coolant leakage.

[0064] After the coolant is sprayed, excess liquid slides down the floor surface and falls into the receiving tank 3 below the splash guard 2. The bottom of the receiving tank 3 has a ramp 32, allowing the coolant to flow smoothly to one end of the output pipe 31, where it is collected and discharged, facilitating coolant recovery or discharge. The conveying roller 11 passes through the support plates 22 at both ends of the splash guard 2 and is installed in conjunction with the receiving tank 3, ensuring efficient and orderly conveying, cooling, and collection processes.

[0065] To prevent excessive coolant residue on the wood-plastic composite flooring surface, a spout cover 2 has a connector plate 23 on one side for detachably installing the squeegee 5. The squeegee 5 has a positioning post 52 and a downward pressure post 53 on its upper part, both penetrating the connector hole 231 of the connector plate 23, ensuring a secure installation. A downward pressure cap 54 and a counterweight 55 are fitted onto the downward pressure post 53. The counterweight 55 rests against a retaining ring 541, ensuring that the squeegee 5 provides continuous and appropriate downward pressure on the wood-plastic composite flooring surface through gravity. The squeegee 5 has an inverted triangular cross-section and equally spaced bending grooves 51 on both sides, enhancing its ability to remove coolant and adapting to the slight undulations of the floor surface for thorough water removal.

[0066] The entire device achieves efficient and uniform cooling after co-extrusion molding of wood-plastic flooring, and, combined with a squeegee mechanism, significantly reduces surface residue, thus ensuring the quality of subsequent processing and finished products.

[0067] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.

Claims

1. A wood-plastic profile co-extrusion cooling device, comprising an embosser (1), and a conveying roller (11) arranged on a side where an output end of the embosser (1) is located, the conveying roller (11) being used to convey the wood-plastic floor after embossing is completed, characterized in that: The conveying roller (11) is provided with a cooling mechanism for cooling down the wood-plastic flooring; The cooling mechanism includes a splash guard (2) located above the conveyor roller (11), the top of the splash guard (2) is provided with a sprayer (4) for spraying coolant, and the bottom of the conveyor roller (11) is provided with a liquid receiving tank (3) for collecting coolant. The splash guard (2) is provided with a squeegee (5) on one side, which is used to remove water from the upper surface of the wood-plastic floor.

2. A wood-plastic profile co-extrusion cooling device according to claim 1, characterized in that: The top of the splash guard (2) is provided with a skylight (21), the spraying component (4) is installed inside the skylight (21), and a baffle (42) is provided on the upper end surface of the spraying component (4); when the spraying component (4) is installed, the spraying component (4) is located inside the skylight (21), and the baffle (42) seals the skylight (21).

3. A wood-plastic profile co-extrusion cooling device according to claim 2, characterized in that: The bottom of the spraying component (4) is evenly distributed with atomizing nozzles (43); The top of the spraying component (4) is provided with a connector (41) for connecting the pipeline.

4. A wood-plastic profile co-extrusion cooling device according to claim 1, characterized in that: The bottom of both ends of the splash shield (2) is fixedly connected to a support plate (22), and the bottom of the support plate (22) rests against the liquid receiving tank (3); The conveying roller (11) passes between the support plates (22).

5. The wood-plastic composite profile co-extrusion cooling device according to claim 4, characterized in that: The liquid receiving chamber (3) has an inclined platform (32) at its bottom, and an output pipe (31) is provided at one end of the liquid receiving chamber (3), with the output pipe (31) located at the lower part of the inclined platform (32).

6. A wood-plastic profile co-extrusion cooling device according to claim 1, characterized in that: A plug-in plate (23) is fixedly connected to one side of the splash shield (2); The upper end face of the wiper (5) is fixedly connected with a positioning post (52) and a pressing post (53), and the positioning post (52) and the pressing post (53) penetrate the plug plate (23); The positioning posts (52) are symmetrically distributed on both sides of the pressing posts (53); The upper end face of the plug plate (23) is provided with a plug hole (231), and the positioning post (52) and the pressing post (53) penetrate the plug plate (23).

7. A wood-plastic profile co-extrusion cooling device according to claim 6, characterized in that: A pressure cap (54) is fitted on the pressure column (53), a counterweight (55) is fitted on the pressure cap (54), and a retaining ring (541) is fixedly connected to the bottom outer side of the pressure cap (54), with the counterweight (55) abutting against the retaining ring (541).

8. A wood-plastic profile co-extrusion cooling device according to claim 7, characterized in that: The cross-section of the wiper (5) is set as an inverted triangle, and the two sides of the wiper (5) are provided with equally spaced bending grooves (51).

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