A device for processing wood-plastic composite

Abstract

The utility model relates to the technical field of fiber plastic wood processing device, disclose a kind of fiber plastic wood production and processing device, including fixed frame, the inside lower side of the fixed frame is rotatably connected with lower press roll, the inside upper side of the fixed frame is provided with roller, the outside of the roller is equipped with embossed pattern, the left and right sides of roller are both provided with installation adjusting assembly, the left and right sides surface of roller is both fixedly connected with connecting cylinder, the inside fixed connection of connecting cylinder is equipped with sealed bearing, the side fixed connection of sealed bearing away from roller is equipped with connecting pipe. In the utility model, the cooperation of the connecting cylinder, the sealed bearing, the connecting pipe, the fixed cylinder, the partition, the deflector, the fixed plate and the communication pipe that are arranged, the temperature on the surface of the roller can be distributed in gradient, and the gradient interval can be changed continuously, so that the embossed depth changes randomly, the natural texture formed by the difference of growth environment of wood is simulated, the natural wood grain without repeated rule is realized, and the product grade is significantly improved.

Description

Technical Field

[0001] This utility model relates to the technical field of fiber-plastic wood processing equipment, and in particular to a fiber-plastic wood production and processing equipment. Background Technology

[0002] "Fiber-plastic wood" usually refers to wood-plastic composite material, which is an environmentally friendly composite material made by mixing wood fibers (such as wood flour, bamboo flour, rice husks, straw, etc.) with thermoplastic plastics (such as polyethylene, polypropylene, polyvinyl chloride, etc.) and necessary additives (such as coupling agents, lubricants, stabilizers, pigments, etc.) in a certain proportion and then processing them through high-temperature extrusion, molding, or injection molding. The production and processing of fiber-plastic wood (wood-plastic composite material) is a relatively complex process that requires a series of specialized equipment to complete each step from raw material processing to final molding. Embossing equipment is one of them. Before the profile has completely cooled, a embossing roller with wood grain or other textures is used to emboss a realistic texture on the surface to enhance the wood imitation effect and anti-slip performance. It is usually integrated at the end of the production line.

[0003] The existing embossing devices used in fiber-plastic composite (FPC) processing employ rollers with fixed textures, resulting in a consistent pattern after each rotation of the roller. This leads to a monotonous and repetitive surface texture on the produced products, lacking aesthetic appeal and quality. Therefore, a new FPC production and processing device is proposed to address these issues. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a fiber-plastic wood production and processing device, which aims to improve the problem that the periodic and repetitive mechanical texture formed when embossing fiber-plastic wood boards affects the aesthetics and texture of the product.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a fiber-plastic wood production and processing device, comprising a fixed frame, a lower pressure roller rotatably connected to the lower inner side of the fixed frame, a roller provided on the upper inner side of the fixed frame, an embossed pattern on the outer side of the roller, installation and adjustment components provided on both the left and right sides of the roller, connecting cylinders fixedly connected to both the left and right side surfaces of the roller, a sealed bearing fixedly connected inside the connecting cylinder, a connecting pipe fixedly connected to the side of the sealed bearing away from the roller, a fixed cylinder fixedly connected inside the roller, a partition plate fixedly connected to the upper surface of the fixed cylinder, a guide plate fixedly connected to the outer side of the fixed cylinder, fixed plates fixedly connected to both the left and right inner sides of the fixed cylinder, and connecting pipes fixedly connected to both the left and right inner wall surfaces of the fixed cylinder.

[0006] As a further description of the above technical solution:

[0007] The left and right sides of the fixed cylinder are fixedly connected to the inner wall of the roller. The width of the partition is the same as the width of the roller, and the upper surface of the partition is fixedly connected to the inner wall of the roller.

[0008] As a further description of the above technical solution:

[0009] The width of the guide plate is shorter than the width of the roller, and the surface of the guide plate away from the fixed cylinder is fixedly connected to the inner wall of the roller.

[0010] As a further description of the above technical solution:

[0011] The number of guide plates is several, and the several guide plates are fixedly connected to the outside of the fixed cylinder in a ring array.

[0012] As a further description of the above technical solution:

[0013] The two fixed plates fixedly connected inside the fixed cylinder divide the inside of the fixed cylinder into three spaces, which are, from left to right, the inlet chamber, the empty chamber, and the outlet chamber. The connecting pipes on the left and right sides of the fixed cylinder are located inside the inlet chamber and the outlet chamber, respectively.

[0014] As a further description of the above technical solution:

[0015] The installation and adjustment assembly includes a sliding groove, which is formed on the outer wall surface of the fixed frame. A connecting bearing is fixedly connected to the outer side of the connecting cylinder, and a moving plate is fixedly connected to the outer side of the connecting bearing. A lifting hydraulic cylinder is fixedly connected to the bottom surface of the moving plate.

[0016] As a further description of the above technical solution:

[0017] The movable plate is slidably connected to the inside of the sliding groove, and the bottom end of the lifting hydraulic cylinder is fixedly connected to the bottom surface of the sliding groove.

[0018] As a further description of the above technical solution:

[0019] The inside and outside of the fixed cylinder are connected to each other through a connecting pipe.

[0020] This utility model has the following beneficial effects:

[0021] 1. In this utility model, through the cooperation of the connecting cylinder, sealed bearing, connecting pipe, fixed cylinder, partition, guide plate, fixed plate and connecting pipe, the temperature of the roller surface can be distributed in a gradient and the gradient range can be continuously changed, so that the depth of the embossing changes randomly, simulating the natural texture of wood formed by the difference in the growth environment, realizing "natural wood grain without repetition", significantly improving the product grade, avoiding the regular repetition of the surface texture of fiber-plastic wood board, which affects the aesthetics and texture of the product.

[0022] 2. In this utility model, the sliding groove, moving plate, connecting bearing and lifting hydraulic cylinder are designed to quickly adjust the height of the roller, so that the distance between the roller and the lower pressure roller can be adjusted according to the different thicknesses of fiber-plastic wood boards, thereby improving the adaptability of the device. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall fiber-plastic wood production and processing device proposed in this utility model;

[0024] Figure 2 This is a schematic diagram of the disassembled roller section of a fiber-plastic wood production and processing device proposed in this utility model.

[0025] Figure 3 This is a schematic cross-sectional view of the front part of the roller section of a fiber-plastic wood production and processing device proposed in this utility model;

[0026] Figure 4 This is a schematic diagram of the fixed cylinder of a fiber-plastic wood production and processing device proposed in this utility model;

[0027] Figure 5 This is a schematic diagram of the bottom cross-section of the fixed cylinder of a fiber-plastic wood production and processing device proposed in this utility model.

[0028] Legend:

[0029] 1. Fixed frame; 2. Lower pressure roller; 3. Roller; 4. Embossing pattern; 5. Installation and adjustment components; 51. Sliding groove; 52. Moving plate; 53. Connecting bearing; 54. Lifting hydraulic cylinder; 6. Connecting cylinder; 7. Sealed bearing; 8. Connecting pipe; 9. Fixed cylinder; 10. Partition plate; 11. Guide plate; 12. Fixed plate; 13. Connecting pipe. Detailed Implementation

[0030] 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.

[0031] Reference Figures 1-3 This utility model provides an embodiment of a fiber-plastic wood production and processing device, including a fixed frame 1. A lower pressure roller 2 is rotatably connected to the lower side of the fixed frame 1, and a roller 3 is arranged on the upper side of the fixed frame 1. This device is suitable for fiber-plastic wood with HDPE (high-density polyethylene) or PVC (polyvinyl chloride) as the base material, whose heat distortion temperature is 75℃~90℃. When the surface temperature of the roller 3 is higher than the heat distortion temperature of the base material, the material fluidity is enhanced and the embossing depth increases; when the temperature is lower than the heat distortion temperature, the embossing depth decreases linearly. An embossing pattern 4 is opened on the outer side of the roller 3. The distance between the lower pressure roller 2 and the roller 3 is adapted to the thickness of the fiber-plastic wood board to be embossed. When the board passes between the lower pressure roller 2 and the roller 3, the embossing pattern 4 on the surface of the roller 3 can emboss the surface of the board. An installation adjustment component 5 is provided on both the left and right sides of the roller 3. The roller 3 can rotate inside the fixed frame 1 by installing the adjustment component 5. The left and right sides of the roller 3 are both A connecting cylinder 6 is fixedly connected. When the roller 3 rotates, the connecting cylinder 6 can move synchronously. A sealed bearing 7 is fixedly connected inside the connecting cylinder 6. A connecting pipe 8 is fixedly connected to the side of the sealed bearing 7 away from the roller 3. The sealing bearing 7 allows the connecting pipe 8 to be rotatably connected to the connecting cylinder 6, so that the connecting pipe 8 can maintain communication with the inside of the roller 3 when the roller 3 is performing rotary embossing. Considering the rotational sealing requirements between the connecting pipe 8 and the connecting cylinder 6 and the working environment, the sealed bearing 7 is selected as an IP65 deep groove ball bearing. Deep groove ball bearings have the advantages of simple structure, low coefficient of friction, high limiting speed, and the ability to withstand large radial loads and a certain axial load. They are suitable for the rotational connection between the connecting cylinder 6 and the connecting pipe 8 in this device. The IP65 protection level can effectively prevent dust from entering the bearing and prevent water spray from all directions from damaging the bearing, ensuring that the bearing can still operate normally in harsh working environments.

[0032] Reference Figures 3-5A fixed cylinder 9 is fixedly connected inside the roller 3. Both sides of the fixed cylinder 9 are fixedly connected to the inner wall of the roller 3. The fixed cylinder 9 divides the internal space of the roller 3, creating a flow cavity through the gap between the fixed cylinder 9 and the roller 3. A partition 10 is fixedly connected to the upper surface of the fixed cylinder 9. The width of the partition 10 is the same as the width of the roller 3. The upper surface of the partition 10 is fixedly connected to the inner wall of the roller 3, thus dividing the space inside the flow cavity. A guide plate 11 is fixedly connected to the outer side of the fixed cylinder 9. The guide plate 11 is welded to the inner wall of the roller 3. The width of the guide plate 11 is shorter than that of the roller. The width of roller 3 is such that the surface of the guide plate 11 away from the fixed cylinder 9 is fixedly connected to the inner wall of roller 3. There are several guide plates 11, which are fixedly connected to the outside of the fixed cylinder 9 in a ring array. The several guide plates 11 can divide the space inside the flow cavity, thereby forming a meandering flow channel, which can extend the flow distance of water inside the flow cavity and improve the heat exchange effect. When the water enters the outside of the fixed cylinder 9, it can meander along the flow channel formed by the guide plates 11, and then flow from below around the fixed cylinder 9 to the front of the partition 10 from the rear side of the partition 10.

[0033] Fixed plates 12 are fixedly connected to both the left and right sides of the inside of the fixed cylinder 9. The two fixed plates 12 fixedly connected inside the fixed cylinder 9 divide the inside of the fixed cylinder 9 into three spaces, which are the inlet chamber, the empty chamber and the outlet chamber from left to right. Connecting pipes 13 are fixedly connected to the inner wall surfaces of both the left and right sides of the fixed cylinder 9. The inside and outside of the fixed cylinder 9 are connected to each other through the connecting pipes 13. The connecting pipes 13 on the left and right sides of the fixed cylinder 9 are located inside the inlet chamber and the outlet chamber, respectively. The connecting pipe 8 on the left side of the roller 3 can be connected to an external water source, so that the water can flow into the inlet chamber through the connecting pipe 8 on the left side and then into the flow chamber on the outside of the fixed cylinder 9 through the connecting pipe 13 on the left side. At this time, the water reaches the rear side of the partition 10 and can flow from below around the fixed cylinder 9 to the front side of the partition 10. Then, when the water reaches the front side of the partition 10, it can flow into the outlet chamber through the connecting pipe 13 on the right side. Finally, the water can be discharged through the connecting pipe 8 on the right side.

[0034] Reference Figures 1-2The installation adjustment component 5 includes a sliding groove 51, which is formed on the outer wall surface of the fixed frame 1. A connecting bearing 53 is fixedly connected to the outer side of the connecting cylinder 6, and a moving plate 52 is fixedly connected to the outer side of the connecting bearing 53. The connecting cylinder 6 is rotatably connected to the moving plate 52 through the connecting bearing 53. The moving plate 52 is slidably connected to the inside of the sliding groove 51. The moving plate 52 can move vertically up and down inside the sliding groove 51, thereby guiding and limiting the movement of the moving plate 52 to avoid deviation. A lifting hydraulic cylinder 54 is fixedly connected to the bottom surface of the moving plate 52. The bottom end of the lifting hydraulic cylinder 54 is fixedly connected to the bottom surface of the sliding groove 51. When the lifting hydraulic cylinder 54 is running, it can drive the moving plate 52 to move up and down. The height of the roller 3 can be quickly adjusted through the connecting bearing 53, thereby adjusting the distance between the roller 3 and the lower pressure roller 2 to adapt to fiber-plastic wood boards of different heights.

[0035] If the production scale is small (such as intermittent processing), or if the roller 3 only needs to provide auxiliary pressure (such as relying on the material's own conveying force to drive the roller 3 to rotate passively), and the requirement for texture accuracy is not high, the above structure can be used directly. If in a continuous production line for wood-plastic composite flooring, it is necessary to set an additional motor drive on the outside of the roller 3. The motor can be installed on the left side of the left moving plate 52, and the right output end of the motor can pass through the moving plate 52. The right output end of the motor can be fixedly connected to a drive gear, and a driven gear can be fixedly connected to the outside of the connecting cylinder 6 located on the left side of the roller 3, so that the drive gear and the driven gear are in contact with each other, and the roller 3 can be driven to rotate when the motor starts. At the same time, the motor can also be used with a reducer to provide the low-speed drive required by the roller 3 during embossing.

[0036] Three NTC (Negative Temperature Coefficient) temperature sensors are evenly distributed on the surface of roller 3, installed at three equal points along the length of roller 3. The temperature sensors are embedded 2-3 mm below the surface of roller 3 and secured with thermally conductive adhesive to ensure good contact between the sensor and the roller 3 surface, enabling accurate measurement of the roller 3 surface temperature. The feedback control logic employs a PID (Proportional-Integral-Derivative) control algorithm. Using the set target surface temperature of roller 3 as a reference, the PID controller adjusts the heating power of the heating system based on the deviation between the real-time temperature measured by the temperature sensor and the target temperature. Specific PID parameters are determined through experimental debugging.

[0037] Working principle: An external constant temperature hot water system (e.g., 80℃~95℃) is connected to the left connecting pipe 8. Water flows through the sealed bearing 7 and enters the left liquid inlet chamber of the fixed cylinder 9. Hot water enters the flow chamber between the inner wall of the roller 3 and the fixed cylinder 9 through the left connecting pipe 13. Under the guidance of the guide plate 11, it circulates along the "S-shaped path" (with the partition plate 10 surrounding it) until the surface of the roller 3 is uniformly heated to the set temperature (e.g., 70℃~85℃). At the same time, the lifting hydraulic cylinder 54 is started to adjust the distance between the roller 3 and the lower pressure roller 2 to the target value.

[0038] The extruded fiber-plastic board is then conveyed to the pressing area between roller 3 and lower roller 2. Roller 3 rotates under the friction of the board or driven by an external motor (through gear transmission), and the embossed pattern 4 on its surface is pressed into the surface of the board. The lower roller 2 provides support to ensure uniform pressure.

[0039] After entering the flow chamber, the hot water flows through the right-side connecting pipe 13 into the outlet chamber inside the fixed cylinder 9, and then returns to the external heating system through the right-side connecting pipe 8 (not directly shown in the figure, but it belongs to the prior art in this field). The heating system is equipped with a temperature sensor to monitor and adjust the hot water temperature in real time, continuously changing the water flow temperature. Simultaneously, as the water flows outside the fixed cylinder 9, its temperature changes continuously due to the need for constant heat exchange with the roller 3 as the flow distance increases. Therefore, the temperature of the roller 3 parts that come into contact with the wood-plastic composite material at different times is also different. This utilizes the different temperatures of the wood-plastic composite material... The difference in plasticity under different temperatures allows for natural variations in texture depth (e.g., deeper embossing in high-temperature areas and slightly shallower embossing in low-temperature areas). A comparative analysis of the embossing effects in different temperature areas revealed that the embossing depth in high-temperature areas (80℃-85℃) can reach 0.8-1mm, while the embossing depth in low-temperature areas (70℃-75℃) is 0.5-0.7mm. This difference in depth further enhances the wood-like effect, thus simulating the texture differences formed by different growth rates of wood, achieving disordered embossing (i.e., highly realistic, non-repeating natural wood grain effect), significantly improving the realism of the wood-like texture, enhancing anti-slip performance, and improving aesthetics.

[0040] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A fiber-plastic wood production and processing device, comprising a fixing frame (1), characterized in that: The lower inner side of the fixed frame (1) is rotatably connected to a lower pressure roller (2). The upper inner side of the fixed frame (1) is provided with a roller (3). The outer side of the roller (3) is provided with embossed patterns (4). The left and right sides of the roller (3) are provided with mounting adjustment components (5). The left and right sides of the roller (3) are fixedly connected with connecting cylinders (6). The inside of the connecting cylinder (6) is fixedly connected with a sealing bearing (7). The side of the sealing bearing (7) away from the roller (3) is fixedly connected with a connecting pipe (8). The inside of the roller (3) is fixedly connected with a fixed cylinder (9). The upper surface of the fixed cylinder (9) is fixedly connected with a partition plate (10). The outer side of the fixed cylinder (9) is fixedly connected with a guide plate (11). The left and right sides of the inside of the fixed cylinder (9) are fixedly connected with fixed plates (12). The inner walls of the left and right sides of the fixed cylinder (9) are fixedly connected with connecting pipes (13).

2. The fiber-plastic wood production and processing device according to claim 1, characterized in that: The left and right sides of the fixed cylinder (9) are fixedly connected to the inner wall of the roller (3), the width of the partition (10) is the same as the width of the roller (3), and the upper surface of the partition (10) is fixedly connected to the inner wall of the roller (3).

3. The fiber-plastic wood production and processing device according to claim 1, characterized in that: The width of the guide plate (11) is shorter than the width of the roller (3), and the side surface of the guide plate (11) away from the fixed cylinder (9) is fixedly connected to the inner wall of the roller (3).

4. The fiber-plastic wood production and processing device according to claim 1, characterized in that: The number of the guide plates (11) is several, and the several guide plates (11) are fixedly connected to the outside of the fixed cylinder (9) in a ring array.

5. The fiber-plastic wood production and processing device according to claim 1, characterized in that: The two fixed plates (12) fixedly connected inside the fixed cylinder (9) divide the inside of the fixed cylinder (9) into three spaces, which are the inlet chamber, the cavity and the outlet chamber from left to right. The connecting pipes (13) on the left and right sides of the fixed cylinder (9) are located inside the inlet chamber and the outlet chamber, respectively.

6. The fiber-plastic wood production and processing device according to claim 1, characterized in that: The installation adjustment assembly (5) includes a sliding through groove (51), which is opened on the outer wall surface of the fixed frame (1). A connecting bearing (53) is fixedly connected to the outer side of the connecting cylinder (6), and a moving plate (52) is fixedly connected to the outer side of the connecting bearing (53). A lifting hydraulic cylinder (54) is fixedly connected to the bottom surface of the moving plate (52).

7. The fiber-plastic wood production and processing apparatus according to claim 6, characterized in that: The movable plate (52) is slidably connected to the inside of the sliding groove (51), and the bottom end of the lifting hydraulic cylinder (54) is fixedly connected to the bottom surface of the sliding groove (51).

8. The fiber-plastic wood production and processing device according to claim 1, characterized in that: The inside and outside of the fixed cylinder (9) are connected to each other through the connecting pipe (13).

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