Wood-plastic embossing embossing device

Abstract

The utility model provides a kind of wood plastic embossing's embossing equipment, belong to wood plastic embossing technical field, including frame, the frame is rotatably equipped with embossing roller, the frame is also equipped with recovery mechanism, the frame is also equipped with heating mechanism, the downside of heating mechanism is equipped with conveying support, the downside of embossing roller is equipped with conveying roller.The utility model solves the process of embossing of the existing wood plastic board in using embossing roller, when embossing roller is contacted with wood plastic board, usually a large amount of high-temperature steam is generated and four spills to outside, these high-temperature steam will be wasted, cannot be recycled, there is certain limitation, at the same time, the embossing process of embossing roller to wood plastic board, the temperature difference of embossing roller and wood plastic board is larger, can lead to the consumption of energy is larger, cause the problem of resource waste.

Description

Technical Field

[0001] This utility model belongs to the field of wood-plastic embossing technology, specifically relating to an embossing device for wood-plastic embossing. Background Technology

[0002] Wooden profiles are widely used in construction and installation engineering, landscaping, and furniture. However, the production of wooden profiles requires the felling of a large number of trees, leading to environmental damage. To protect the environment, wood-plastic composite (WPC) profiles have begun to be used. WPC refers to a new wood-based material made by mixing polyethylene, polypropylene, and polyvinyl chloride (PVC) with more than 35%-70% waste plant fibers such as wood flour, rice husks, and straw, instead of the usual resin adhesives. WPC profiles are profiles produced by processing wood-plastic composites through extrusion, molding, and injection molding. Currently, WPC composite boards are a high-tech, green, and environmentally friendly material mainly made of wood (wood cellulose, plant cellulose) as a base material with thermoplastic polymers (plastics) and processing aids. This mixture is then heated and extruded using mold equipment. It combines the properties and characteristics of both wood and plastic, making it a new type of composite material that can replace both wood and plastic.

[0003] In the process of embossing existing wood-plastic composite boards using embossing rollers, a large amount of high-temperature steam is usually generated when the embossing roller comes into contact with the wood-plastic composite board and overflows into the outside world. This high-temperature steam is wasted and cannot be recycled, which has certain limitations. At the same time, during the embossing process of the embossing roller on the wood-plastic composite board, the temperature difference between the embossing roller and the wood-plastic composite board is large, which leads to a large energy consumption and waste of resources. Summary of the Invention

[0004] This utility model provides an embossing device for wood-plastic composite boards. Its purpose is to solve the problem that in the existing process of embossing wood-plastic composite boards using embossing rollers, a large amount of high-temperature steam is usually generated when the embossing roller comes into contact with the wood-plastic composite board and overflows into the outside world. This high-temperature steam is wasted and cannot be recycled, which has certain limitations. At the same time, during the embossing process of the embossing roller on the wood-plastic composite board, the temperature difference between the embossing roller and the wood-plastic composite board is large, which leads to high energy consumption and waste of resources.

[0005] This utility model embodiment provides a wood-plastic embossing device, including a frame, an embossing roller rotatably mounted on the frame, a recycling mechanism on the frame, a heating mechanism on the frame, a conveying bracket on the lower side of the heating mechanism, and a transport roller on the lower side of the embossing roller.

[0006] Furthermore, the recycling mechanism includes a gas collection hood covering the upper side of the embossing roller, and a fan is provided on the top of one side of the frame.

[0007] By adopting the above technical solution, the gas collection hood is tightly covered on the upper side of the embossing roller. It is made of high-temperature resistant stainless steel and has a ceramic fiber sealing strip at the bottom edge to maintain a certain dynamic gap with the surface of the embossing roller. At the same time, its inner cavity is inclined to guide the steam to flow efficiently to the outlet. The fan is a high-temperature resistant centrifugal induced draft fan, which is installed on the top of one side of the frame. It forces the steam in the gas collection hood into the heating mechanism through negative pressure suction.

[0008] Furthermore, the heating mechanism includes a heating box fixed in a frame, a partition in the heating box, a heat pipe heat exchanger inserted in the partition, the input end of the heat pipe heat exchanger being connected to a gas collection hood, the output end of the heat pipe heat exchanger being connected to the input end of a fan via a flexible hose, the output end of the fan being connected to an exhaust gas treatment device, and the heating box located at the lower end of the partition being filled with a heat-conducting medium.

[0009] By adopting the above technical solution, the hot end of the heat pipe heat exchanger is inserted into the upper part of the partition plate and directly contacts the high-temperature steam to absorb the latent heat of steam condensation; the cold end extends to the lower part of the partition plate and is immersed in the heat transfer medium. After the hot end continues to contact the high-temperature steam, the cold end heats the heat transfer medium. At the same time, the fan output end is connected to an activated carbon adsorption tower to treat the exhaust gas.

[0010] Furthermore, the bottom of the heating box is provided with several grooves, and heating rollers are rotatably installed in the grooves.

[0011] By adopting the above technical solution, the groove has an arc-shaped structure with an embedded self-lubricating bearing. The gap between the heating roller and the top of the groove, i.e. the bottom of the heating box, is very small, which can only ensure the normal rotation of the heating roller. The heating roller is made of stainless steel cylinder. Therefore, when the temperature inside the heating box rises, the surface of the heating roller can also rise due to the small gap between the heating roller and the groove, thus making contact with the wood-plastic board in advance. This significantly reduces the energy consumption in the embossing process, while ensuring that the high-temperature steam generated in the embossing process is not wasted, thereby improving resource utilization.

[0012] Furthermore, the side of the conveying bracket closest to the conveying roller passes through the frame and is connected to the conveying roller, and the two sides of the conveying roller are rotatably mounted between the conveying brackets.

[0013] By adopting the above technical solution, the conveying roller is installed between the conveying brackets through bearings. The conveying roller is directly below the embossing roller, and thus can rotate synchronously with the embossing roller.

[0014] Furthermore, the upper surface of the conveying bracket is aligned with the uppermost end of the conveying roller, and the bottom of the heating roller is aligned with the bottom of the embossing roller.

[0015] By adopting the above technical solution, the elevation of the upper surface of the conveyor support is aligned with the conveyor roller, ensuring that there is no step transition when the wood-plastic board is conveyed, avoiding warping or jamming of the board. At the same time, the bottom of the heating roller and the embossing roller are always aligned, so that the wood-plastic board can be directly conveyed to the bottom of the embossing roller for embossing operation after being preheated by the heating roller, without the need for adjustment.

[0016] The beneficial effects of this utility model are as follows:

[0017] 1. This utility model, through the setting of the recycling mechanism, has a gas collection hood tightly covering the upper side of the embossing roller, maintaining a certain dynamic gap with the surface of the embossing roller. At the same time, its inner cavity is inclined, which can guide the steam to flow efficiently to the outlet. The fan is installed on the top of one side of the frame, and the steam in the gas collection hood is forced into the heating mechanism through negative pressure suction, so as to prevent the high temperature steam generated during the embossing process from overflowing to the outside.

[0018] 2. This utility model, through the setting of the heating mechanism, allows the hot end of the heat pipe heat exchanger to directly contact high-temperature steam and absorb the latent heat of steam condensation; the cold end extends to the lower side of the partition and is immersed in the heat transfer medium. After the hot end continuously contacts the high-temperature steam, the cold end heats the heat transfer medium, which in turn heats the heating roller, thereby achieving the purpose of preheating the wood-plastic board by the heating roller. At the same time, the output end of the fan is connected to an activated carbon adsorption tower to treat the exhaust gas.

[0019] 3. By setting up a conveyor bracket, the upper surface of the conveyor bracket is aligned with the conveyor roller, ensuring that there is no step transition when the wood-plastic board is conveyed, avoiding warping or jamming of the board. At the same time, the conveyor bracket can provide a heating platform for the heating roller, so that the wood-plastic board can be heated on the conveyor bracket.

[0020] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of this invention can be realized and obtained by means of the structures particularly pointed out in the description and the drawings. Attached Figure Description

[0021] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0022] Figure 1 This is a front view structural diagram of an embodiment of the present utility model;

[0023] Figure 2 This is a side view of an embodiment of the present utility model.

[0024] Figure 3 This is a schematic diagram of the internal structure of the heating box according to an embodiment of the present utility model;

[0025] Reference numerals: 1. Frame; 2. Embossing roller; 3. Recycling mechanism; 31. Gas collection hood; 32. Fan; 4. Heating mechanism; 41. Heating box; 411. Groove; 42. Partition plate; 43. Heat pipe heat exchanger; 44. Hose; 45. Heating roller; 5. Conveying support; 6. Transport roller. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. The same reference numerals in the drawings represent the same components. It should be noted that the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0027] Reference Figures 1-3 This utility model embodiment proposes a wood-plastic embossing device, including a frame 1, a controller on one side of the frame 1, an embossing roller 2 rotatably mounted on the frame 1, and a recycling mechanism 3 on the frame 1. The recycling mechanism 3 includes a gas collection hood 31 covering the upper side of the embossing roller 2, and a fan 32 mounted on the top of one side of the frame 1. The gas collection hood 31 is tightly covered on the upper side of the embossing roller 2 and is made of high-temperature resistant stainless steel. The bottom edge is provided with a ceramic fiber sealing strip to maintain a certain dynamic gap with the surface of the embossing roller 2. At the same time, its inner cavity is inclined to guide steam to flow efficiently to the outlet. The fan 32 is a high-temperature resistant centrifugal fan installed on the top of one side of the frame 1. It forces the steam in the gas collection hood 31 into the heating mechanism 4 through negative pressure suction.

[0028] Reference Figures 1-3 The frame 1 is also equipped with a heating mechanism 4. The height of the embossing roller 2 and the heating mechanism 4 is fixed and cannot be moved up or down. The embossing roller 2 can only rotate within the frame 1 to facilitate embossing. The heating mechanism 4 includes a heating box 41 fixed in the frame 1. The heating box 41 is equipped with a partition 42. A heat pipe heat exchanger 43 is inserted into the partition 42. The input end of the heat pipe heat exchanger 43 is connected to the gas collection hood 31. The output end of the heat pipe heat exchanger 43 is connected to the input end of the fan 32 through a hose 44. The output end of the fan 32 is connected to a tail gas treatment device. The heating box 41 is located at the lower end of the partition 42 and is filled with a heat-conducting medium. The hot end of the heat pipe heat exchanger 43 is inserted into the upper side of the partition 42 and directly contacts the high-temperature steam to absorb the latent heat of steam condensation. The cold end extends to the lower side of the partition 42 and is immersed in the heat-conducting medium. After the hot end continuously contacts the high-temperature steam, the cold end heats the heat-conducting medium. At the same time, the output end of the fan 32 is connected to an activated carbon adsorption tower to treat the tail gas.

[0029] Reference Figures 1-3 The bottom of the heating box 41 is provided with several grooves 411, in which heating rollers 45 are rotatably installed. The grooves 411 have an arc-shaped structure and are embedded with self-lubricating bearings. The gap between the heating rollers 45 and the top of the grooves 411, i.e. the bottom of the heating box 41, is very small, which can only ensure that the heating rollers 45 can rotate normally. The heating rollers 45 are made of stainless steel cylinders. Therefore, when the internal temperature of the heating box 41 rises, the surface of the heating rollers 45 can also rise due to the small gap between the heating rollers 45 and the grooves 411, thus making contact with the wood-plastic board in advance. This significantly reduces the energy consumption in the embossing process and ensures that the high-temperature steam generated in the embossing process is not wasted, thereby improving resource utilization.

[0030] Reference Figures 1-3 A conveying bracket 5 is provided on the lower side of the heating mechanism 4, and a conveying roller 6 is provided on the lower side of the embossing roller 2. The side of the conveying bracket 5 near the conveying roller 6 passes through the frame 1 and is connected to the conveying roller 6. The two sides of the conveying roller 6 are rotatably mounted between the conveying bracket 5 via bearings. The conveying bracket 5 is a single platform that passes through the frame 1 and intersects with the frame 1. One end of the platform located on the lower side of the embossing roller 2 slides up and down in the frame 1 via a drive mechanism, thereby enabling the conveying bracket 5 to drive the conveying roller 6 to move synchronously. The drive mechanism uses a motor to drive a lead screw to rotate or a slide rail to drive the conveying bracket 5 and the conveying roller 6 to slide up and down along the frame 1 in the vertical direction. The conveying roller 6 is located directly below the embossing roller 2. When the embossing roller 2 rotates to emboss the wood-plastic composite board, the conveying roller 6 can rotate in the opposite direction synchronously with the embossing roller 2, thus moving the wood-plastic composite board. The upper surface of the conveying bracket 5 is aligned with the top of the conveying roller 6, the bottom of the heating roller 45 is aligned with the bottom of the embossing roller 2, and the elevation of the upper surface of the conveying bracket 5 is aligned with the conveying roller 6, ensuring that there is no step transition when the wood-plastic composite board is conveyed, avoiding warping or jamming of the board. At the same time, the bottom of the heating roller 45 is always aligned with the bottom of the embossing roller 2, so that the wood-plastic composite board can be directly conveyed to the bottom of the embossing roller 2 for embossing operation after being preheated by the heating roller 45, without the need for adjustment.

[0031] The specific implementation method is as follows: In use, the wood-plastic composite board is placed on the conveyor support 5. The height of the conveyor support 5 and the conveyor roller 6 is adjusted by the drive mechanism so that the wood-plastic composite board can just contact the bottom of the embossing roller 2 on the conveyor support 5. Then, the embossing roller 2 is driven to rotate and heated. When the wood-plastic composite board is pushed to the underside of the embossing roller 2 for embossing, there is no need to push it anymore. At this time, after the embossing roller 2 embosses the wood-plastic composite board, the wood-plastic composite board will move slowly under the synchronous action of the conveyor roller 6 and the embossing roller 2. At the same time, the high-temperature steam generated during the embossing process will be blown to the heat pipe heat exchanger 43 through the fan 32 and the air collection hood 31. After heat exchange through the heat pipe heat exchanger 43, the heat transfer medium will be heated, and the heating roller 45 will also be heated. At this time, under the action of the heating roller 45, the surface of the wood-plastic composite board will be preheated, thereby reducing energy loss during embossing.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A wood-plastic embossing embossing apparatus comprising a frame (1), characterized in that, The frame (1) is rotatably provided with an embossing roller (2), the frame (1) is also provided with a recycling mechanism (3), the frame (1) is also provided with a heating mechanism (4), the heating mechanism (4) is provided with a conveying bracket (5) on its lower side, and the embossing roller (2) is provided with a conveying roller (6) on its lower side. The recycling mechanism (3) includes a gas collection hood (31) covering the upper side of the embossing roller (2), and a fan (32) is provided on the top of one side of the frame (1). The heating mechanism (4) includes a heating box (41) fixed in a frame (1). The heating box (41) is provided with a partition (42). A heat pipe heat exchanger (43) is inserted in the partition (42). The input end of the heat pipe heat exchanger (43) is connected to the gas collection hood (31). The output end of the heat pipe heat exchanger (43) is connected to the input end of the fan (32) through a hose (44). The output end of the fan (32) is connected to a tail gas treatment device. The heating box (41) located at the lower end of the partition (42) is filled with a heat-conducting medium.

2. The wood-plastic embossing embossing device according to claim 1, characterized in that: The bottom of the heating box (41) is provided with several grooves (411), and a heating roller (45) is rotatably installed in the grooves (411).

3. The wood-plastic embossing embossing device according to claim 1, characterized in that: The conveying bracket (5) passes through the frame (1) on the side near the conveying roller (6) and is connected to the conveying roller (6). The two sides of the conveying roller (6) are rotatably installed between the conveying bracket (5).

4. The wood-plastic embossing embossing device according to claim 2, characterized in that: The upper surface of the conveying bracket (5) is aligned with the uppermost end of the conveying roller (6), and the bottom of the heating roller (45) is aligned with the bottom of the embossing roller (2).

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