Density fiberboard processing method

Abstract

The invention discloses a processing method of a density fiberboard, and aims to solve the problem that sundries embedded on the surface of a wood chip cannot be removed when the wood chip is washed before entering a hot grinding procedure. The key points of the technical scheme are as follows: S1, preparing materials; s2, chipping is carried out; s3, washing with water; s4, hot grinding; s5, carrying out post-treatment; and S6, warehousing. Raw materials are softened after being heated through the heating assembly, so that impurities embedded in the raw materials are loosened, the impurities embedded in the surfaces of the raw materials are removed through the follow-up screening assembly, meanwhile, the impurities on the surfaces of sheets are removed in cooperation with the follow-up washing procedure, and then the situation that the impurities affect machining of the follow-up hot grinding procedure is avoided; therefore, the quality of the final plate is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of density board processing, and more specifically, to a density fiberboard processing method. Background Art

[0002] Density fiberboard is made of wood fiber or other plant fiber as raw materials. It is prepared by fiber preparation, applied with synthetic resin, and pressed under heating and pressurization conditions. It has uniform structure, fine material, stable performance, impact resistance, and easy processing. It is widely used in domestic furniture, decoration, musical instruments, and packaging.

[0003] At present, the processing method of density fiberboard generally includes several steps such as raw material chipping, hot grinding, fiber drying, auxiliary assembly, hot pressing, sanding, etc. In order to prevent the mud, stones, metals and other debris mixed in the wood chips when entering the hot grinding process to affect the service life of the equipment in the hot grinding process, the wood chips are usually washed with water before entering the hot grinding process to remove the mixed mud, stones, metals and other debris. The water washing method uses the weight difference between the wood chips and the debris. The debris sinks under the water and the wood chips float on the water surface, while the debris embedded in the surface of the wood chips cannot be removed.

[0004] Therefore, a new solution needs to be proposed to solve this problem. Summary of the invention

[0005] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a method for processing density fiberboard to solve the defects in the above-mentioned background technology.

[0006] The above technical purpose of the present invention is achieved through the following technical solution: a method for processing density fiberboard, characterized in that it includes the following steps: S1. Prepare materials, put raw materials of different specifications into storage bins for storage according to their types; S2. Chipping: Select the appropriate raw materials in the storage bin according to the demand and use the conveyor to transport the raw materials to the cutting machine to form sheets, then use the scraper to transport the sheets to the screening machine, and then transport the sheets screened by the screening machine to the storage bin; S3. Washing: remove the sheet from the storage bin and wash it to remove debris from the surface of the sheet; S4. Hot grinding, the sheet after washing to remove impurities is preheated and steamed and transported to the hot grinding machine for processing and separation to obtain fibers; S5. Post-processing, the fiber obtained after the hot grinding process is dried, supplemented, and sanded to form a sheet; S6. Warehousing: the boards obtained after post-processing are subjected to quality inspection, and the boards that meet the standards are packaged and stored in the warehouse; Wherein, the conveying device includes a frame, a first conveyor belt arranged on the frame, a second conveyor belt, a heating component arranged on the first conveyor belt for heating the raw material, and a screening component arranged on the second conveyor belt for removing debris embedded in the surface of the raw material. The end of the first conveyor belt is located above the head end of the second conveyor belt, and the end of the second conveyor belt is located above the feed port of the cutting machine.

[0007] The present invention is further configured as follows: the heating assembly includes a cover body fixedly connected to the frame and covering the first conveyor belt, a heating chamber arranged inside the cover body, a plurality of heating plates arranged in the heating chamber, and a control panel arranged on the frame for controlling the operation of the heating plates, openings for the raw materials and the first conveyor belt to pass through are opened on both sides of the cover body, a plurality of heat conduction pipes are arranged on the inner wall of the cover body, the pipe openings of the heat conduction pipes are arranged toward the side of the first conveyor belt, a hair dryer controlled by the control panel is arranged on the cover body, and an air guide pipe is arranged on the cover body, one end of the air guide pipe is connected to the output end of the hair dryer, and the other end is connected to the inside of the heating chamber.

[0008] The present invention is further configured as follows: a plurality of through grooves are provided on the surface of the first conveyor belt, a material collecting box is provided at the bottom of the frame, and a material feeding trough which is not less than the length of the cover body is provided on the top of the material collecting box.

[0009] The present invention is further configured as follows: the screening material assembly includes a connecting pipe fixedly connected to the frame, the two ends of the connecting pipe respectively correspond to the end of the first conveyor belt and the head end of the second conveyor belt, the inner wall of the connecting pipe is provided with a plurality of baffles, the plurality of baffles are staggered and inclined toward one side of the bottom end of the connecting pipe, and the connecting pipe is provided with an adjusting component for adjusting the inclination angle of the baffle.

[0010] The present invention is further configured as follows: the adjusting component includes a locking plate and a plurality of rotating grooves provided on the outer wall of the connecting tube, a rotating shaft is fixedly connected to one side of the baffle, a rotating hole for installing the rotating shaft is provided in the rotating groove, at least one end of the rotating shaft passes through the connecting tube to the outside and a hexagonal groove is provided on the side wall, a plurality of positioning grooves are provided on the outer wall of the connecting tube, and a plurality of positioning blocks for inserting into the positioning grooves and a locking block for inserting into the hexagonal grooves are fixedly connected to one side of the locking plate.

[0011] The present invention is further configured as follows: an electromagnet is fixedly connected to the top of the baffle, and a switch for controlling the operation of the electromagnet is provided on the outer wall of the connecting pipe.

[0012] The present invention is further configured as follows: an inclined elastic plate is fixedly connected to the bottom of the connecting tube, and a side of the elastic plate away from the connecting tube is located above the head end of the second conveyor belt.

[0013] The present invention is further configured as follows: an extension plate is fixedly connected to the end of the elastic plate, a collecting box located below the extension plate is detachably connected to the frame, and a plurality of screening grooves are provided on the surface of the extension plate.

[0014] In summary, the present invention has the following beneficial effects: The raw materials are heated by the heating component to soften them, thereby loosening the debris embedded in the raw materials, so that the subsequent screening component can remove the debris embedded in the surface of the raw materials. At the same time, the subsequent water washing process can be used to remove the debris on the surface of the sheet, thereby preventing the debris from affecting the subsequent hot grinding process, thereby ensuring the quality of the final plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The structure of the present invention is schematically shown Figure 1 ; Figure 2 The structure of the present invention is schematically shown Figure 2 ; Figure 3 The structure of the present invention is schematically shown Figure 3 ; Figure 4 for Figure 3 A in the enlarged view; Figure 5 The structure of the present invention is schematically shown Figure 4 ; Figure 6 for Figure 5 The enlarged view of point B in the figure; Figure 7 It is a flowchart of the present invention.

[0016] In the figure: 1. frame; 2. first conveyor belt; 3. second conveyor belt; 4. cover body; 5. heating chamber; 6. heating plate; 7. control panel; 8. heat pipe; 9. hair dryer; 10. air duct; 11. through slot; 12. collecting box; 13. feeding slot; 14. connecting pipe; 15. baffle; 16. rotating slot; 17. rotating shaft; 18. hexagonal slot; 19. positioning slot; 20. positioning block; 21. locking block; 22. electromagnet; 23. switch; 24. elastic plate; 25. extension plate; 26. collecting box; 27. screening slot; 28. locking plate. DETAILED DESCRIPTION

[0017] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features therein can be combined with each other without conflict.

[0018] A method for processing a density fiberboard, such as Figure 1-Figure 7As shown, the following steps are included: S1. Prepare materials, put raw materials of different specifications into storage bins for storage according to their types; S2. Chipping: Select the appropriate raw materials in the storage bin according to the demand and use the conveyor to transport the raw materials to the cutting machine to form sheets, then use the scraper to transport the sheets to the screening machine, and then transport the sheets screened by the screening machine to the storage bin; S3. Washing: remove the sheet from the storage bin and wash it to remove debris from the surface of the sheet; S4. Hot grinding, the sheet after washing to remove impurities is preheated and steamed and transported to the hot grinding machine for processing and separation to obtain fibers; S5. Post-processing, the fiber obtained after the hot grinding process is dried, supplemented, and sanded to form a sheet; S6. Warehousing: the boards obtained after post-processing are subjected to quality inspection, and the boards that meet the standards are packaged and stored in the warehouse; The conveying device includes a frame 1, a first conveyor belt 2 arranged on the frame 1, a second conveyor belt 3, a heating component arranged on the first conveyor belt 2 for heating the raw material, and a screening component arranged on the second conveyor belt 3 for removing foreign matter embedded on the surface of the raw material. The end of the first conveyor belt 2 is located above the head end of the second conveyor belt 3, and the end of the second conveyor belt 3 is located above the feed port of the cutting machine. Furthermore, the heating assembly includes a cover body 4 fixedly connected to the frame 1 and covering the first conveyor belt 2, a heating chamber 5 arranged inside the cover body 4, a plurality of heating plates 6 arranged in the heating chamber 5, and a control panel 7 arranged on the frame 1 for controlling the operation of the heating plates 6. Openings for the raw materials and the first conveyor belt 2 to pass through are provided on both sides of the cover body 4. A plurality of heat conducting pipes 8 are provided on the inner wall of the cover body 4. The pipe openings of the heat conducting pipes 8 are arranged toward the first conveyor belt 2. A hair dryer 9 controlled by the control panel 7 is provided on the cover body 4. The air duct 10 has one end connected to the output end of the blower 9 and the other end connected to the inside of the heating chamber 5. The raw materials are passed through the opening into the cover body 4 by the first conveyor belt 2, and the heating plate 6 is used to heat the heating chamber 5 by the control panel 7. Then, the blower 9 is driven to work by the control panel 7, and the hot air in the heating chamber 5 is blown to the heat pipe 8 through the air duct 10. Since the pipe opening of the heat pipe 8 is arranged toward the side of the first conveyor belt 2, the hot air will be blown to the raw materials on the first conveyor belt 2 along the heat pipe 8, so as to heat the raw materials; Furthermore, a plurality of through grooves 11 are provided on the surface of the first conveyor belt 2, a collecting box 12 is provided at the bottom of the frame 1, and a feeding slot 13 not less than the length of the cover body 4 is provided on the top of the collecting box 12. The hot air blown out of the heat conducting pipe 8 can blow off the debris attached to the surface of the raw material, and the blown-off debris will fall into the collecting box 12 along the through grooves 11. At the same time, the debris generated during the transportation of the raw material will also fall into the collecting box 12 along the through grooves 11, so as to ensure the cleanliness of the surface of the first conveyor belt 2 and avoid the accumulation of debris and debris affecting the transportation of the raw material; Furthermore, the screening assembly includes a connecting pipe 14 fixedly connected to the frame 1, and the two ends of the connecting pipe 14 correspond to the end of the first conveyor belt 2 and the head end of the second conveyor belt 3 respectively. The inner wall of the connecting pipe 14 is provided with a plurality of baffles 15, and the plurality of baffles 15 are staggered and tilted toward one side of the bottom end of the connecting pipe 14. The connecting pipe 14 is provided with an adjusting component for adjusting the inclination angle of the baffle 15. After the first conveyor belt conveys the raw materials to its own end, the raw materials will fall into the connecting pipe 14. Due to the setting of the baffles 15 on the inner wall of the connecting pipe 14, the raw materials will collide with the baffles 15 during the falling process, thereby removing the sundries embedded on the surface of the raw materials, and because the baffles 15 are staggered, they can repeatedly collide with the falling raw materials, thereby improving the efficiency of removing sundries. At the same time, the inclination angle of the baffles 15 can be adjusted by using the adjusting component to adapt to raw materials of different specifications. Further, the adjusting component includes a locking plate 28 and a plurality of rotating grooves 16 provided on the outer wall of the connecting tube 14, a rotating shaft 17 is fixedly connected to one side of the baffle 15, a rotating hole for installing the rotating shaft 17 is provided in the rotating groove 16, at least one end of the rotating shaft 17 passes through the connecting tube 14 to the outside and a hexagonal groove 18 is provided on the side wall, a plurality of positioning grooves 19 are provided on the outer wall of the connecting tube 14, and a plurality of positioning blocks 20 for inserting into the positioning grooves 19 are fixedly connected to one side of the locking plate 28. and a locking block 21 for inserting into the hexagonal groove 18, and rotating the shaft 17 to penetrate the connecting tube 14 to one end of the outside. Since the baffle 15 and the shaft 17 are fixedly connected to each other, the baffle 15 also rotates when the shaft 17 is rotated. After the baffle 15 is rotated to a desired angle, the positioning block 20 on the locking plate 28 and the locking block 21 are aligned with the positioning groove 19 on the outer wall of the connecting tube 14 and the hexagonal groove 18, so as to limit the rotation of the shaft 17, thereby fixing the position of the baffle 15; Furthermore, an electromagnet 22 is fixedly connected to the top of the baffle 15, and a switch 23 for controlling the operation of the electromagnet 22 is provided on the outer wall of the connecting tube 14. When the switch 23 is turned on, the magnetic force of the electromagnet 22 can be used to adsorb metal debris on the surface of the raw material when it comes into contact with the baffle 15, thereby removing the metal debris on the surface of the baffle 15. When the switch 23 is turned off after working for a period of time, the restriction of the magnetic force is lost, and the metal debris will fall and detach from the connecting tube 14, thereby preventing it from affecting the next use. Furthermore, an elastic plate 24 arranged obliquely is fixedly connected to the bottom of the connecting tube 14, and a side of the elastic plate 24 away from the connecting tube 14 is located above the head end of the second conveyor belt 3. The setting of the elastic plate 24 can provide a certain buffering effect for the raw materials falling from the connecting tube 14, thereby preventing the raw materials from falling directly onto the second conveyor belt 3 and causing damage to the second conveyor belt 3. Furthermore, an extension plate 25 is fixedly connected to the end of the elastic plate 24, and a collecting box 26 located below the extension plate 25 is detachably connected to the frame 1. A plurality of screening grooves 27 are provided on the surface of the extension plate 25. When debris falls out of the connecting pipe 14, the setting of the screening grooves 27 on the extension plate 25 enables the debris to pass through and fall into the collecting box 26 for collection, thereby preventing the debris from falling onto the second conveyor belt 3.

[0019] The processing flow of the present invention is as follows: First, raw materials of different specifications are placed in storage bins according to their types for storage. Then, suitable raw materials in the storage bin are selected according to needs and transported to the cutting machine by a conveying device to form sheets. During the transportation process, the raw materials are heated by a heating component to soften the raw materials, thereby loosening the debris embedded in the raw materials. Then, the debris embedded in the surface of the raw materials is removed by a screening component. Then, a scraper is used to transport the sheets to a screening machine and the sheets screened by the screening machine are transported to a storage bin. Then, the sheets in the storage bin are taken out and washed with water to remove debris on the surface of the sheets. Then, the sheets after washing to remove debris are preheated and steamed and transported to a hot mill for separation to obtain fibers. Then, the fibers obtained after the hot milling process are dried, assembled, and sanded to form boards. Finally, the boards obtained after post-treatment are quality inspected, and the boards that meet the standards are packaged and stored in the warehouse.

[0020] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A method for processing density fiberboard, characterized in that: The following steps are involved: S1. Prepare materials, put raw materials of different specifications into storage bins for storage according to their types; S2. Chipping: Select the appropriate raw materials in the storage bin according to the demand and use the conveyor to transport the raw materials to the cutting machine to form sheets, then use the scraper to transport the sheets to the screening machine, and then transport the sheets screened by the screening machine to the storage bin; S3. Washing: remove the sheet from the storage bin and wash it to remove debris from the surface of the sheet; S4. Hot grinding, the sheet after washing to remove impurities is preheated and steamed and transported to the hot grinding machine for processing and separation to obtain fibers; S5. Post-processing, the fiber obtained after the hot grinding process is dried, supplemented, and sanded to form a sheet; S6. Warehousing: the boards obtained after post-processing are subjected to quality inspection, and the boards that meet the standards are packaged and stored in the warehouse; The conveying device comprises a frame (1), a first conveyor belt (2) arranged on the frame (1), a second conveyor belt (3), a heating component arranged on the first conveyor belt (2) for heating the raw material, and a screening component arranged on the second conveyor belt (3) for removing foreign matter embedded in the surface of the raw material, wherein the end of the first conveyor belt (2) is located above the head end of the second conveyor belt (3), and the end of the second conveyor belt (3) is located above the feed port of the cutting machine.

2. A method for processing density fiberboard according to claim 1, characterized in that: The heating assembly comprises a cover body (4) fixedly connected to the frame (1) and arranged above the first conveyor belt (2), a heating chamber (5) arranged inside the cover body (4), a plurality of heating plates (6) arranged in the heating chamber (5), and a control panel (7) arranged on the frame (1) for controlling the operation of the heating plates (6). Openings are provided on both sides of the cover body (4) for the raw materials and the first conveyor belt (2) to pass through. The inner wall of the cover body (4) is provided with a plurality of heat conducting pipes (8), the pipe openings of the heat conducting pipes (8) are arranged toward the first conveyor belt (2). A blower (9) controlled by the control panel (7) is provided on the cover body (4). An air guide pipe (10) is provided on the cover body (4), one end of the air guide pipe (10) is connected to the output end of the blower (9), and the other end is in conduction with the interior of the heating chamber (5).

3. A method for processing density fiberboard according to claim 2, characterized in that: A plurality of through grooves (11) are provided on the surface of the first conveyor belt (2), a material collecting box (12) is provided at the bottom of the frame (1), and a material feeding trough (13) having a length not less than that of the cover body (4) is provided at the top of the material collecting box (12).

4. A method for processing density fiberboard according to claim 1, characterized in that: The screening material assembly comprises a connecting pipe (14) fixedly connected to the frame (1), the two ends of the connecting pipe (14) respectively corresponding to the end of the first conveyor belt (2) and the head end of the second conveyor belt (3), the inner wall of the connecting pipe (14) is provided with a plurality of baffles (15), the plurality of baffles (15) are arranged in an interlaced manner and are all inclined toward one side of the bottom end of the connecting pipe (14), and the connecting pipe (14) is provided with an adjusting component for adjusting the inclination angle of the baffle (15).

5. A method for processing density fiberboard according to claim 4, characterized in that: The adjusting component comprises a locking plate (28) and a plurality of rotating grooves (16) formed on the outer wall of the connecting tube (14); a rotating shaft (17) is fixedly connected to one side of the baffle plate (15); a rotating hole for mounting the rotating shaft (17) is formed in the rotating groove (16); at least one end of the rotating shaft (17) passes through the connecting tube (14) to the outside and a hexagonal groove (18) is formed on the side wall; a plurality of positioning grooves (19) are formed on the outer wall of the connecting tube (14); a plurality of positioning blocks (20) for inserting into the positioning grooves (19) and a locking block (21) for inserting into the hexagonal grooves (18) are fixedly connected to one side of the locking plate (28).

6. A method for processing density fiberboard according to claim 4, characterized in that: An electromagnet (22) is fixedly connected to the top of the baffle (15), and a switch (23) for controlling the operation of the electromagnet (22) is provided on the outer wall of the connecting pipe (14).

7. A method for processing density fiberboard according to claim 4, characterized in that: The bottom of the connecting tube (14) is fixedly connected to an elastic plate (24) arranged obliquely, and the side of the elastic plate (24) away from the connecting tube (14) is located above the head end of the second conveyor belt (3).

8. A method for processing density fiberboard according to claim 7, characterized in that: An extension plate (25) is fixedly connected to the end of the elastic plate (24), a collecting box (26) located below the extension plate (25) is detachably connected to the frame (1), and a plurality of screening slots (27) are provided on the surface of the extension plate (25).

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