A plate blank pre-pressing machine for high-density fiberboard production

Abstract

The utility model relates to fiberboard technical field discloses a kind of blank pre-pressing machine for high-density fiberboard production, including support, and support inside is equipped with pre-pressing component, and the pre-pressing component includes the fixed frame and moving frame being equipped in support inside, and fixed frame and moving frame are all equipped with driving roller, driven roller, guide roller and connecting belt, relative connecting belt reverse movement and between being equipped with passageway, connecting belt inside middle part is equipped with main press roller and pressure-maintaining roller, and pressure-maintaining roller and main press roller are relatively abutted and connect the inside of belt and are arranged, and the driving component that can drive moving frame is equipped on the support and moves up;Driven roller on the side of moving frame close to passageway export is equipped with cleaning component, and the raw material adhered on connecting belt can be cleaned.The utility model has the advantages compared with prior art in that: it is convenient to adjust the height of passageway according to the thickness, improve practicability, and it is convenient to clean the fiberboard raw material on connecting belt, prevent adhering and affect forming effect.

Description

Technical Field

[0001] This utility model relates to the field of fiberboard technology, specifically to a pre-pressing machine for high-density fiberboard production. Background Technology

[0002] The manufacturing process of high-density fiberboard can be divided into six core steps: material preparation, fiber preparation, drying, pre-pressing, hot pressing, and post-processing.

[0003] In the pre-pressing stage of the slab, continuous flat pressing with double steel belts is often used. The two connecting belts mainly transfer the fiberboard raw material through reverse movement, and the pressure rollers on the inner side of the connecting belts press the fiberboard raw material into shape. However, since the supports on the inner side of the two connecting belts are mostly fixed to the bracket, they are not easy to adjust. This means that the channel cannot be adjusted according to the required fiberboard pressing thickness. In addition, the fiberboard raw material needs to be glued before pre-pressing. During the pre-pressing stage, the glued fiberboard raw material tends to adhere to the connecting belt and accumulate, resulting in the fiberboard not being flat enough. Utility Model Content

[0004] The technical problem this invention aims to solve is that the internal support of the connecting belt is fixed, making it inconvenient to adjust according to the required thickness. Fiberboard raw materials tend to adhere to and accumulate on the connecting belt, resulting in uneven fiberboard.

[0005] To solve the above-mentioned technical problems, the technical solution provided by this utility model is: a pre-pressing machine for high-density fiberboard production, including a support frame, and a pre-pressing component is provided inside the support frame.

[0006] The pre-compression assembly includes a fixed frame and a movable frame located inside the support frame. The fixed frame is located below the movable frame. Both the fixed frame and the movable frame are equipped with a drive roller, a driven roller, and a guide roller. A connecting belt is provided outside the drive roller, driven roller, and guide roller, and they move in opposite directions relative to the connecting belt. A main pressure roller is located in the middle of the inner side of the connecting belt. Several pressure-holding rollers are provided on both sides of the main pressure roller. The pressure-holding rollers and the main pressure roller are arranged to abut against the inner side of the connecting belt. The support frame is equipped with a drive assembly that can drive the movable frame to move upward. The movable frame always moves in the vertical direction, and a channel is provided between the connecting belts. A cleaning assembly is provided on the driven roller located on the side of the movable frame near the channel outlet to clean the raw materials adhering to the connecting belt.

[0007] Furthermore, the drive assembly includes a U-shaped rod connected to the top of the relative movable frame and extending through the support. A motor is provided on the top wall of the support, and a threaded rod is connected to the power output end of the motor. The threaded rod passes through the middle of the U-shaped rod through the thread.

[0008] Furthermore, hinge rods are respectively hinged to both sides of the movable frame, and the hinge angles of the hinge rods are symmetrically arranged. A slider is hinged to the other end of the hinge rod. Sliding holes are respectively provided on both sides of the bracket, and the sliding holes and sliders slide in cooperation.

[0009] Furthermore, the cleaning assembly includes a fixed block connected to the movable frame, a hinge plate coaxially hinged to the active roller, a movable block at the other end of the hinge plate, a connecting shaft between the movable blocks, and a scraper abutting the connecting belt on the side of the connecting shaft away from the movable block.

[0010] Furthermore, the top of the connecting belt on the fixed frame and the connecting belt on the movable frame are horizontally positioned near the channel outlet, and the channel is extended in a direction away from the outlet.

[0011] The advantages of this utility model compared with the prior art are as follows:

[0012] 1. The connecting belt is driven to move clockwise by the active roller, driven roller and guide roller on the fixed frame, and the connecting belt is driven to move in the opposite direction by the moving frame, so as to continuously transfer the fiberboard raw material from one side of the channel to the moving frame on the other side.

[0013] 2. The combination of main pressure roller and pressure holding roller facilitates the squeezing of fiberboard raw materials during the conveying process of the connecting belt, which facilitates the discharge of gas in the gap between the boards and thus makes it easier to reduce the thickness of the boards.

[0014] 3. The cleaning component facilitates the scraping off of fibrous material adhering to the connecting belt of the moving frame, thus avoiding interference with subsequent pre-compression operations. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a slab pre-pressing machine for high-density fiberboard production according to this utility model.

[0016] Figure 2 This is a schematic diagram of the main cross-section of a slab pre-pressing machine for high-density fiberboard production according to this utility model.

[0017] Figure 3 This is a front section diagram of a pre-pressing machine for producing high-density fiberboard according to this utility model.

[0018] Figure 4 yes Figure 3 A magnified structural diagram of A in the middle.

[0019] Figure 5 This is a half-sectional structural diagram of a slab pre-pressing machine for high-density fiberboard production according to this utility model.

[0020] As shown in the figure: 1. Support, 2. Pre-compression assembly, 3. Moving frame, 4. Drive roller, 5. Driven roller, 6. Guide roller, 7. Connecting belt, 8. Main pressure roller, 9. Pressure holding roller, 10. Drive assembly, 11. Channel, 12. Cleaning assembly, 13. U-shaped rod, 14. Motor, 15. Threaded rod, 16. Hinge rod, 17. Slider, 18. Sliding hole, 19. Fixed block, 20. Hinge plate, 21. Moving block, 22. Connecting shaft, 23. Scraper, 24. Spring. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0022] Combined with appendix Figure 1 Appendix Figure 2 and attached Figure 3 A pre-pressing machine for high-density fiberboard production includes a support frame 1. A pre-pressing assembly 2 is provided inside the support frame 1. The pre-pressing assembly 2 includes a fixed frame and a movable frame 3 located inside the support frame 1. The fixed frame is located below the movable frame 3. Both the fixed frame and the movable frame 3 are provided with a drive roller 4, a driven roller 5, and a guide roller 6. A connecting belt 7 is provided outside the drive roller 4, driven roller 5, and guide roller 6. The connecting belts 7 move in opposite directions and a channel 11 is provided between them. The top of the connecting belt 7 on the fixed frame and the connecting belt 7 on the movable frame 3 are horizontally arranged near the outlet of the channel 11. The channel 11 expands away from the outlet. A main pressure roller 8 is provided in the middle of the inner side of the connecting belt 7. Several pressure holding rollers 9 are provided on both sides of the main pressure roller 8. The pressure holding rollers 9 and the main pressure roller 8 are arranged to abut against the inner side of the connecting belt 7.

[0023] After mixing formaldehyde-free glue with fiberboard raw materials, the mixture is placed on the connecting belt on the fixed frame. The connecting belt 7 can be driven to move clockwise by the active roller 4, driven roller 5 and guide roller 6 on the fixed frame, and the connecting belt 7 can be driven to move counterclockwise by the active roller 4, driven roller 5 and guide roller 6 on the movable frame 3, thereby conveying the fiberboard raw materials in the channel 11.

[0024] Channel 11 is extended away from the outlet. Fiberboard material is introduced from the expansion of channel 11. Here, the pressure roller 9 can gradually pressurize the fiberboard at the entrance of channel 11 until the fiberboard material is conveyed to the main pressure roller 8 and pressurized to a high pressure point. The thickness of the fiberboard is maintained by the main pressure roller 8 and the pressure roller 9 near the outlet of channel 11.

[0025] Combined with appendix Figure 5 The support 1 is provided with a drive assembly 10 that can drive the movable frame 3 to move upward. The drive assembly 10 includes a U-shaped rod 13 connected to the top of the movable frame 3 and passing through the support 1. The top wall of the support 1 is provided with a motor 14. The power output end of the motor 14 is connected to a threaded rod 15. The threaded rod 15 passes through the middle of the U-shaped rod 13 through the thread.

[0026] By starting the motor 14, the motor 14 drives the moving frame 3 to rise and fall through the threaded rod 15, which in turn drives the U-shaped rod 13 through threaded engagement, thereby adjusting the distance of the channel 11.

[0027] Combined with appendix Figure 5 The movable frame 3 always moves in the vertical direction. The movable frame 3 is hinged to two sides with hinge rods 16 respectively. The hinge angles of the hinge rods 16 are symmetrical. The other end of the hinge rod 16 is hinged to a slider 17. The bracket 1 is provided with sliding holes 18 on both sides. The sliding holes 18 and the slider 17 are slidably engaged.

[0028] When the movable frame 3 moves upward, the movable frame 3 drives the slider 17 to slide along the sliding hole 18 through the hinge rod 16. Since the hinge angle is symmetrically set relative to the hinge rod 16, the movable frame 3 always maintains stable vertical movement during the upward movement.

[0029] Combined with appendix Figure 3 and attached Figure 4 A cleaning assembly 12 is provided on the driven roller 5 located on the side of the moving frame 3 near the outlet of the channel 11 to clean the raw materials adhering to the connecting belt 7. The cleaning assembly 12 includes a fixed block 19 connected to the moving frame 3, a hinge plate 20 coaxially hinged to the driving roller 4, a moving block 21 at the other end of the hinge plate 20, a connecting shaft 22 between the moving blocks 21, a scraper 23 abutting the connecting belt 7 on the side of the connecting shaft 22 away from the moving block 21, and a spring 24 between the moving block 21 and the fixed block 19.

[0030] Under the action of spring 24, the moving block 21 drives the hinge plate 20 to rotate around the driven roller 5 axis, so that the scraper 23 on the other side always abuts against the connecting belt 7, thereby scraping off the fiberboard material on the surface of the connecting belt 7.

[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

[0033] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A pre-pressing machine for high-density fiberboard production, comprising a support (1), wherein a pre-pressing assembly (2) is provided inside the support (1), characterized in that: The pre-compression component (2) includes a fixed frame and a movable frame (3) located inside the support (1). The fixed frame is located below the movable frame (3). Both the fixed frame and the movable frame (3) are provided with an active roller (4), a driven roller (5), and a guide roller (6). The active roller (4), the driven roller (5), and the guide roller (6) are provided with a connecting belt (7) which moves in opposite directions relative to the connecting belt (7). The middle of the inner side of the connecting belt (7) is provided with a main pressure roller (8). Several pressure-holding rollers (9) are provided on both sides of the main pressure roller (8). The pressure-holding rollers (9) and the main pressure rollers (8) are arranged to abut against the inner side of the connecting belt (7). The support (1) is provided with a drive component (10) that can drive the movable frame (3) to move upward. The movable frame (3) always moves in the vertical direction. A channel (11) is provided between the connecting belts (7). A cleaning assembly (12) is provided on the driven roller (5) located on the side of the moving frame (3) near the outlet of the channel (11) to clean the raw materials adhering to the connecting belt (7).

2. The pre-pressing machine for high-density fiberboard production according to claim 1, characterized in that: The drive assembly (10) includes a U-shaped rod (13) connected to the top of the relative movable frame (3) and passing through the bracket (1). A motor (14) is provided on the top wall of the bracket (1). A threaded rod (15) is connected to the power output end of the motor (14). The threaded rod (15) passes through the middle of the U-shaped rod (13) through the thread.

3. The pre-pressing machine for high-density fiberboard production according to claim 1, characterized in that: The movable frame (3) is hinged to two sides with hinge rods (16) respectively, and the hinge angles of the hinge rods (16) are symmetrical. The other end of the hinge rod (16) is hinged to a slider (17). The bracket (1) is provided with sliding holes (18) on both sides, and the sliding holes (18) and sliders (17) slide together.

4. A pre-pressing machine for high-density fiberboard production according to claim 1, characterized in that: The cleaning assembly (12) includes a fixed block (19) connected to the movable frame (3), a hinge plate (20) coaxially hinged to the active roller (4), a movable block (21) at the other end of the hinge plate (20), a connecting shaft (22) between the movable blocks (21), a scraper (23) abutting the connecting belt (7) on the side of the connecting shaft (22) away from the movable block (21), and a spring (24) between the movable block (21) and the fixed block (19).

5. A pre-pressing machine for high-density fiberboard production according to claim 1, characterized in that: The top of the connecting strip (7) on the fixed frame and the connecting strip (7) on the movable frame (3) are horizontally arranged near the outlet of the channel (11), and the channel (11) is extended in the direction away from the outlet.

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