A wood material crushing equipment for wood powder production

Abstract

The present invention discloses a wood material crushing device for wood powder production, including a conveying and cutting mechanism and a crushing and grinding mechanism. The conveying and cutting mechanism is used to convey and cut wood materials, and the conveying and cutting mechanism includes a height adjustment plate, a sliding pressure rod, a positioning pressure plate and a conveying belt; the crushing and grinding mechanism is used to crush the cut wood materials, and the crushing and grinding mechanism includes a crushing box, a screening cylinder and a sealing member. The present invention belongs to the technical field of wood material crushing, and specifically provides a wood material crushing device for wood powder production that can ensure that wood materials are smoothly conveyed and pushed to the first and second blade discs in a stable state for cutting, and can conveniently adjust and select the mesh size of the screen according to the use requirements of wood powder.

Description

Technical Field

[0001] The invention belongs to the technical field of wood material crushing, in particular to a wood material crushing device for producing wood powder. Background Art

[0002] Wood fiber powder is an organic flocculent fiber material obtained by chemical treatment and mechanical processing of natural renewable wood. It is widely used in the fields of concrete mortar, gypsum products, wood pulp sponge, asphalt roads, etc. In the prior art, wood scraps are often used as raw materials for wood powder production, which are crushed and processed by crushing equipment.

[0003] When the existing crushing equipment is in use, the wood material needs to be transported to the crushing mechanism through the conveyor belt for crushing. The conveying movement of the wood material depends entirely on the friction between it and the conveyor belt. For thin plate-shaped wood materials, due to their light weight, the friction between the wood material and the conveyor belt is relatively small, and it is easy to shift relative to the conveyor belt or even slip during the conveying process, and cannot be smoothly transported to the cutter disc with the conveyor belt. Even if it is transported to the cutter disc, there is still a problem of insufficient propulsion force during cutting, which affects the smooth cutting of the wood material.

[0004] Meanwhile, after the wood material is crushed into granular wood powder, the wood powder needs to be screened according to specific usage requirements. However, the screen size of the existing crushing equipment is usually fixed, and the size of the working screen cannot be conveniently adjusted according to specific screening requirements. Summary of the invention

[0005] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a wood material crushing equipment for wood powder production, so as to at least partially solve the problems raised in the above background technology.

[0006] The present invention provides the following technical solution: A wood material crushing device for wood powder production proposed by the present invention comprises:

[0007] A conveying and cutting mechanism, used for conveying and cutting wooden materials;

[0008] The conveying and cutting mechanism comprises a height adjustment plate, a sliding pressure rod, a positioning pressure plate and a conveying belt, the height adjustment plate is provided with a height adjustment groove, the upper end of the sliding pressure rod is slidably arranged in the height adjustment groove, the sliding pressure rod is configured to be guided by the height adjustment groove for height adjustment, the positioning pressure plate is connected to the lower end of the sliding pressure rod, the conveying belt is located below the positioning pressure plate, the conveying belt is used to convey wooden materials, the positioning pressure plate is used to press the wooden materials on the conveying belt, and the positioning pressure plate and the conveying belt jointly convey the wooden materials;

[0009] A crushing and grinding mechanism, used for crushing the cut wood materials;

[0010] The crushing and grinding mechanism includes a crushing box, a screening drum and a sealing member. The crushing box is arranged below the discharge end of the conveyor belt, and the screening drum is rotatably arranged on the bottom wall of the crushing box. A plurality of groups of partitions and screens are arranged on the screening drum at intervals. The screens are arranged in a plurality of groups, and the plurality of groups of screens include a plurality of mesh sizes. A support plate is arranged on the outer periphery of the partition, and the sealing member is detachably arranged on the support plate for sealing the screen. The number of groups of the sealing member is less than the number of groups of the screens. The screens without the sealing member are screenable areas, and the screens with the sealing member are non-screenable areas. A lifting bottom plate is slidably arranged in the screening drum, and the lifting bottom plate is configured to correspond to a group of screens in the lowest screenable area.

[0011] Furthermore, the conveying and cutting mechanism also includes a support frame, the conveying belt is rotatably arranged on the support frame, the height adjustment plate is fixedly arranged on the top wall of the support frame, the lower end of the height adjustment plate is fixedly provided with a load-bearing column, the lower end of the load-bearing column is fixedly provided with a load-bearing plate, a conveying motor is installed on the load-bearing plate, two groups of conveying shafts are rotatably arranged on the load-bearing plate, one group of the conveying shafts is connected to the output shaft of the conveying motor, and a conveying belt is sleeved on the two groups of the conveying shafts, a connecting plate is fixedly arranged on the conveying belt, a conveying block is connected to the connecting plate, a ball bearing is provided at the lower end of the conveying block, the conveying block slides along the load-bearing plate through the ball bearing, a part of the conveying block extends out of the load-bearing plate, the sliding pressure rod penetrates and slides on the part of the conveying block extending out of the load-bearing plate, and the linear speed of the conveying belt is the same as that of the conveying belt.

[0012] Furthermore, a connection block is fixedly provided at the upper end of the sliding pressure rod, an adjustment guide column is rotatably connected to the connection block, the adjustment guide column is engaged and rolled in the height adjustment groove, the height adjustment plate is a runway-shaped structure, a sliding guide cavity is opened inside the height adjustment plate near the side wall, the height adjustment groove runs through the side wall of the sliding guide cavity, the free end of the adjustment guide column is located in the sliding guide cavity, and a limiting protrusion is fixedly provided at one end of the adjustment guide column located in the sliding guide cavity;

[0013] The height adjustment groove includes a pressing section, a lifting section and a guiding section, the pressing section and the lifting section are respectively arranged on the opposite side walls of the height adjustment plate, and the lifting section passes through the two ends of the height adjustment plate and extends to the side wall on which the pressing section is arranged, the height of the pressing section is lower than the height of the lifting section, the guiding section is provided with two groups, the two groups of guiding sections are respectively arranged between the two ends of the pressing section and the lifting section, and the guiding section is arranged at an angle.

[0014] Furthermore, in order to meet the pressing and conveying requirements of wood materials of different thicknesses, a connecting plate is fixedly provided at the lower end of the sliding pressure rod, a sleeve is fixedly provided on the connecting plate, an embedded rod is fixedly provided on the positioning pressure plate, the embedded rod is slidably arranged in the sleeve, a pressing spring is sleeved on the outer side of the sleeve and the embedded rod, and the two ends of the pressing spring are respectively connected to the connecting plate and the positioning pressure plate.

[0015] Further, the connecting plates are provided in multiple groups on the conveying belt, the sliding pressure rods and the positioning pressure plates are provided in multiple groups corresponding to the connecting plates, the conveying belts are provided in multiple groups on the supporting frame, and a cutting interval is provided between two adjacent groups of the conveying belts, the height adjustment plates are provided in multiple groups corresponding to the conveying belts, the positioning pressure plates corresponding to the pressing sections are located directly above the middle of the conveying belts, and the positioning pressure plates corresponding to the lifting sections are located directly above the cutting interval;

[0016] The support frame is also provided with a transverse cutting mechanism and a longitudinal cutting mechanism, wherein:

[0017] The transverse cutting mechanism comprises a transverse cutting motor, a cutting shaft and a cutter disc 1, wherein the transverse cutting motor is fixedly mounted on a support frame, the cutting shaft is rotatably mounted on the support frame, the cutting shaft is connected to an output shaft of the transverse cutting motor, and a plurality of cutter discs are fixedly mounted on the cutting shaft, the cutter disc 1 is located within the cutting interval, and the upper portion of the cutter disc 1 is higher than the upper surface of the conveying belt;

[0018] The longitudinal cutting mechanism includes a cutting movable motor, a cutting movable screw, a cutting guide slide bar and a cutting movable plate, the cutting movable motor is fixedly mounted on a support frame, the cutting movable screw is rotatably mounted on the support frame and is connected to an output shaft of the cutting movable motor, the cutting guide slide bar is fixedly mounted on the support frame, the cutting movable plate is threadedly connected to the cutting movable screw and is slidably mounted on the cutting guide slide bar, a longitudinal cutting motor is mounted on the cutting movable plate, and a cutter disc 2 is fixedly mounted on the output shaft of the longitudinal cutting motor.

[0019] Furthermore, the sealing member includes two groups of symmetrically arranged arc plates, two groups of connecting ears are fixedly provided at both ends of the arc plates, connecting ears are provided with connecting screw holes, the arc plates are configured to be detachably arranged on a support plate, and the support plate is used to support the arc plates. The connecting ears corresponding to the two groups of arc plates are connected by connecting bolts, and the connecting bolts are installed in the connecting screw holes by threads.

[0020] Furthermore, a mounting plate is provided below the crushing box, on which a screening motor is fixedly provided, a driving gear is fixedly provided on the output shaft of the screening motor, a screening shaft is rotatably provided on the bottom wall of the crushing box, a driven gear is fixedly provided on the screening shaft, the driven gear is meshed with the driving gear, the bottom wall of the screening drum is fixedly connected to the screening shaft, the screening shaft is a hollow shaft, a lifting cylinder is fixedly provided on the mounting plate, the free end of the lifting cylinder passes through the screening shaft and extends through the bottom wall of the screening drum into the screening drum, a motor seat is fixedly provided on the free end of the lifting cylinder, the lifting bottom plate is fixedly connected to the motor seat, a crushing motor is installed on the motor seat, a crushing shaft is rotatably provided on the lifting bottom plate, the crushing shaft is connected to the output shaft of the crushing motor, and a plurality of crushing knives are provided on the crushing shaft.

[0021] Furthermore, a crushing chamber and a screening chamber are sequentially provided in the crushing box from top to bottom, the screening drum is rotatably arranged in the screening chamber by a screening shaft, a guide plate is provided between the crushing chamber and the screening chamber, a guide bucket is provided on the guide plate, the upper end of the screening drum is connected with the lower end of the guide bucket, a discharge port is provided on the lower side wall of the crushing box, a discharge door is installed on the side wall of the crushing box by a hinge, and the discharge door is arranged corresponding to the discharge port.

[0022] Furthermore, a crushing roller group is rotatably provided in the crushing chamber, the crushing roller group includes two crushing rollers rotating in opposite directions, a crushing knife is fixedly provided on the side wall of the crushing chamber, a crushing shaft is rotatably provided on the side wall of the crushing box, two crushing shafts are provided corresponding to the crushing rollers, the two crushing shafts are respectively connected to the two crushing rollers, two mutually meshing transmission gears are fixedly provided on the two crushing shafts, a motor frame is fixedly provided on the side wall of the crushing box, a crushing motor is fixedly provided on the motor frame, and one of the crushing shafts is connected to the output shaft of the crushing motor.

[0023] Furthermore, a sawdust collecting bucket is provided on the support frame, and the sawdust collecting bucket is located below the conveyor belt. A conveying pipe is provided between the sawdust collecting bucket and the crushing box. At least two groups of crushing roller groups are provided in the crushing chamber, and the conveying pipe is located above at least one group of crushing roller groups. The crushing shafts of two adjacent groups of crushing roller groups are connected by a synchronous belt.

[0024] The beneficial effects achieved by the present invention using the above structure are as follows: The wood material crushing equipment for wood powder production proposed by the present invention has the following advantages:

[0025] (1) The wooden material is conveyed by pressing and covering the wooden material through the cooperation of the positioning pressure plate and the conveying belt, which increases the friction between the wooden material and the conveying belt during the conveying process, thereby preventing the wooden material from shifting or slipping during the conveying process and ensuring sufficient propulsion force during cutting, so that the wooden material can be smoothly conveyed and pushed to the knife disc 1 and the knife disc 2 in a stable state for cutting;

[0026] (2) By cooperating with the sealing member and a screening cylinder provided with a plurality of screens of different mesh sizes, the mesh size of the screen corresponding to the screenable area can be conveniently adjusted to meet the screening requirements of wood powder particles of different sizes; and by adjusting the height position of the liftable bottom plate in the screening cylinder, the wood powder particles in the screening cylinder that do not meet the size requirements can be crushed and smoothly screened out after crushing. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0028] Figure 1 The overall structure of the embodiment of the present invention is shown in FIG. Figure 1 ;

[0029] Figure 2 The overall structure of the embodiment of the present invention is shown in FIG. Figure 2 ;

[0030] Figure 3 The overall structure of the embodiment of the present invention is shown in FIG. Figure 3 ;

[0031] Figure 4 It is a schematic diagram of the structure of the conveying and cutting mechanism in a top view according to an embodiment of the present invention;

[0032] Figure 5 The position structure diagram of the conveyor belt and the cutter disc 1 of the embodiment of the present invention is shown in FIG. Figure 1 ;

[0033] Figure 6 Schematic diagram of the position structure of the conveyor belt and the cutter disc in the embodiment of the present invention Figure 2 ;

[0034] Figure 7 for Figure 6 A partial enlarged view of part A;

[0035] Figure 8 is a schematic diagram of a three-dimensional cross-sectional structure of a height adjustment plate in a top view according to an embodiment of the present invention;

[0036] Fig. 9 for Figure 8 A partial enlarged view of part B;

[0037] Fig.10 It is a schematic diagram of a three-dimensional cross-sectional structure of a conveying and cutting mechanism in a main viewing direction according to an embodiment of the present invention;

[0038] Fig.11 for Fig.10 A partial enlarged view of part C;

[0039] Fig.12 It is a schematic diagram of a three-dimensional cross-sectional structure of a crushing and grinding mechanism in a main viewing direction according to an embodiment of the present invention;

[0040] Fig.13 for Fig.12 A partial enlarged view of part D;

[0041] Fig.14 for Fig.12 A partial enlarged view of part E;

[0042] Fig.15 This is a schematic diagram of the position structure of the screening drum in the crushing box in an embodiment of the present invention;

[0043] Fig.16 for Fig.15 A partial enlarged view of part F;

[0044] Fig.17 Schematic diagram of the structure of the sealing member in an embodiment of the present invention.

[0045] Among them, 1. conveying and cutting mechanism, 2. height adjustment plate, 3. sliding pressure rod, 4. positioning pressure plate, 5. conveying belt, 6. height adjustment groove, 7. crushing and grinding mechanism, 8. crushing box, 9. screening cylinder, 10. sealing member, 11. partition, 12. screen, 13. support plate, 14. lifting bottom plate, 15. support frame, 16. load-bearing column, 17. load-bearing plate, 18. conveying motor, 19. conveying shaft, 20. conveying belt, 21. connecting plate, 22. conveying block, 23. ball bearing, 24. connecting block, 25. adjusting guide column, 26. sliding guide cavity, 27. limiting protrusion, 28. pressing section, 29. lifting section, 30. guide section, 31. connecting plate, 32. sleeve, 33. embedded rod, 34. pressing spring, 35. cutting spacing, 36. horizontal cutting motor, 3 7. Cutting shaft, 38. Cutter disc one, 39. Cutting moving motor, 40. Cutting moving screw, 41. Cutting guide slide bar, 42. Cutting moving plate, 43. Longitudinal cutting motor, 44. Cutter disc two, 45. Connecting ear, 46. Connecting screw hole, 47. Connecting bolt, 48. Mounting plate, 49. Screening motor, 50. Driving gear, 51. Screening shaft, 52. Driven gear, 53. Lifting cylinder, 54. Motor seat, 55. Crushing motor, 56. Crushing shaft, 57. Crushing knife, 58. Crushing chamber, 59. Screening chamber, 60. Guide plate, 61. Guide bucket, 62. Discharge door, 63. Crushing roller, 64. Crushing knife, 65. Crushing shaft, 66. Transmission gear, 67. Motor frame, 68. Crushing motor, 69. Sawdust collecting bucket, 70. Conveying pipe, 71. Synchronous belt. DETAILED DESCRIPTION

[0046] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0047] It should be noted that the words "front", "rear", "left", "right", "up" and "down" used in the following description refer to directions in the drawings, and the words "inside" and "outside" refer to directions toward or away from the geometric center of a specific component, respectively.

[0048] This embodiment is a technical improvement made to address the technical problems that when conveying light and thin wood materials, the wood materials cannot be smoothly conveyed and cut in coordination with the cutter disc, and it is not convenient to adjust the wood powder screening size according to specific processing requirements.

[0049] See also Figure 1-Figure 6 , Fig.12 , Fig.13 , Fig.15 and Fig.16 This embodiment provides a wood material crushing device for wood powder production, comprising:

[0050] The conveying and cutting mechanism 1 is used for conveying and cutting wood materials;

[0051] The conveying and cutting mechanism 1 includes a height adjustment plate 2, a sliding pressure rod 3, a positioning pressure plate 4 and a conveying belt 5. The height adjustment plate 2 is provided with a height adjustment groove 6. The upper end of the sliding pressure rod 3 is slidably arranged in the height adjustment groove 6. The sliding pressure rod 3 is configured to be guided by the height adjustment groove 6 for height adjustment. The positioning pressure plate 4 is connected to the lower end of the sliding pressure rod 3. The conveying belt 5 is located below the positioning pressure plate 4. The conveying belt 5 is used to convey wooden materials. The positioning pressure plate 4 is used to cover the wooden materials on the conveying belt 5. The positioning pressure plate 4 and the conveying belt 5 jointly convey the wooden materials. The positioning pressure plate 4 and the conveying belt 5 cooperate to realize the positioning and smooth conveying of the wooden materials, thereby avoiding positional displacement and slippage of light and thin wooden materials during transportation.

[0052] A crushing and grinding mechanism 7, used for crushing the cut wood material;

[0053] The crushing and grinding mechanism 7 includes a crushing box 8, a screening drum 9 and a sealing member 10. The crushing box 8 is arranged below the discharge end of the conveyor belt 5. The screening drum 9 is rotatably arranged on the bottom wall of the crushing box 8. A plurality of groups of partitions 11 and screens 12 are arranged one by one on the screening drum 9. The screens 12 are arranged in multiple groups, and the multiple groups of screens 12 include multiple mesh sizes. The screening requirements of wood powders of different sizes can be met by setting the screens 12 with different mesh sizes. A support plate 13 is arranged on the periphery of the partition 11. The sealing member 10 is detachably arranged on the support plate 13 for sealing the screen 12. The number of groups of the sealing member 10 is less than the number of groups of the screen 12. The screen 12 without the sealing member 10 is a screenable area, and the screen 12 with the sealing member 10 is For the non-screenable area, when the sealing member 10 blocks the screen 12 of a certain mesh size, the screen 12 of this mesh size cannot screen the wood powder, while the screen 12 without the sealing member 10 can screen the wood powder. A lifting bottom plate 14 is slidingly provided in the screening cylinder 9. The lifting bottom plate 14 is configured to correspond to the bottom group of screenable areas. When the screens 12 at different heights are selected to correspond to the screenable areas, the height of the lifting bottom plate 14 is adjusted so that the lifting bottom plate 14 always corresponds to the screenable area, thereby ensuring that the wood powder in the screening cylinder 9 can be screened out through the bottom group of screens 12, avoiding the lifting bottom plate 14 corresponding to the non-screenable area, which causes the wood powder at the bottom of the screening cylinder 9 to fail to be screened out smoothly.

[0054] See also Figure 2 , Figure 4-Figure 9In this embodiment, the conveying and cutting mechanism 1 also includes a support frame 15, and the conveying belt 5 is rotatably arranged on the support frame 15. The structure of the conveying belt 5 is a prior art and is not described in detail in this embodiment. The height adjustment plate 2 is fixedly arranged on the top wall of the support frame 15, and a load-bearing column 16 is fixedly arranged at the lower end of the height adjustment plate 2. A load-bearing plate 17 is fixedly arranged at the lower end of the load-bearing column 16. A conveying motor 18 is installed on the load-bearing plate 17. Two groups of conveying shafts 19 are rotatably arranged on the load-bearing plate 17, and one group of conveying shafts 19 is connected to the output shaft of the conveying motor 18. Conveying belts 20 are sleeved on the two groups of conveying shafts 19. A connecting plate 21 is fixedly arranged on the conveying belt 20, and a conveying block 22 is connected to the connecting plate 21. A ball bearing is arranged at the lower end of the conveying block 22 23, the conveying block 22 slides along the load-bearing plate 17 through the ball bearing 23, and a part of the conveying block 22 extends out of the load-bearing plate 17. The sliding pressure rod 3 is slidably arranged on the part of the conveying block 22 extending out of the load-bearing plate 17. The linear speed of the conveying belt 20 is the same as that of the conveying belt 5. Under the action of the conveying belt 20, the sliding pressure rod 3 is driven to move synchronously with it through the connecting plate 21 and the conveying block 22, and the setting of the ball bearing 23 improves the smoothness of the movement of the conveying block 22 on the load-bearing plate 17. The sliding pressure rod 3 drives the positioning pressure plate 4 to move synchronously with the conveying belt 5. Under the action of the positioning pressure plate 4, the wooden material placed on the conveying belt 5 is pressed, ensuring that even light and thin wooden materials can be smoothly conveyed with the conveying belt 5.

[0055] See also Figure 5 , Figure 6 , Figure 8 and Fig. 9 In this embodiment, a connection block 24 is fixedly provided at the upper end of the sliding pressure rod 3, and an adjustment guide column 25 is rotatably connected to the connection block 24. The adjustment guide column 25 is engaged and rolled in the height adjustment groove 6. When the conveying belt 20 drives the conveying block 22 to move, the conveying block 22 drives the adjustment guide column 25 to roll along the height adjustment groove 6 through the sliding pressure rod 3. The height adjustment plate 2 is a runway-shaped structure, which is adapted to the conveying path of the conveying belt 20 through the runway-shaped setting. A sliding guide cavity 26 is opened near the side wall of the height adjustment plate 2. The height adjustment groove 6 penetrates the side wall of the sliding guide cavity 26. The free end of the adjustment guide column 25 is located in the sliding guide cavity 26, and a limiting protrusion 27 is fixedly provided at one end of the adjustment guide column 25 located in the sliding guide cavity 26.

[0056] The height adjustment slot 6 includes a pressing section 28, a lifting section 29 and a guide section 30. The pressing section 28 and the lifting section 29 are respectively provided on the opposite side walls of the height adjustment plate 2, and the lifting section 29 passes through the two ends of the height adjustment plate 2 and extends to the side wall provided with the pressing section 28. The height of the pressing section 28 is lower than the height of the lifting section 29. When the adjusting guide column 25 rolls and moves in the pressing section 28 and the lifting section 29, the height position of the positioning plate 4 changes. There are two groups of guide sections 30, and the two groups of guide sections 30 are respectively The guide section 30 is arranged between the two ends of the pressing section 28 and the lifting section 29, and is arranged at an angle. Through the arrangement of the guide section 30, when the adjusting guide column 25 moves with the conveyor belt 20, the adjusting guide column 25 is transferred between the pressing section 28 and the lifting section 29 through the guide section 30. When the adjusting guide column 25 rolls along the pressing section 28, the positioning plate 4 is in a low position, and the positioning plate 4 is pressed on the wood material. When the adjusting guide column 25 rolls along the lifting section 29, the positioning plate 4 is lifted and does not contact the wood material.

[0057] See also Fig.10 and Fig.11 In this embodiment, a connecting plate 31 is fixedly provided at the lower end of the sliding pressure rod 3, a sleeve 32 is fixedly provided on the connecting plate 31, an embedded rod 33 is fixedly provided on the positioning pressure plate 4, the embedded rod 33 is slidably arranged in the sleeve 32, and a pressing spring 34 is sleeved on the outer side of the sleeve 32 and the embedded rod 33, and the two ends of the pressing spring 34 are respectively connected to the connecting plate 31 and the positioning pressure plate 4, and the expansion and contraction of the pressing spring 34 can drive the positioning pressure plate 4 to press and fix wooden materials of different thicknesses.

[0058] See also Figure 3-Figure 6 and Fig.10 In this embodiment, a plurality of connecting plates 21 are provided on the conveying belt 20, a plurality of sliding pressure rods 3 and positioning pressure plates 4 are provided corresponding to the connecting plates 21, a plurality of conveying belts 5 are provided on the supporting frame 15, a cutting interval 35 is provided between two adjacent conveying belts 5, a plurality of height adjustment plates 2 are provided corresponding to the conveying belts 5, the positioning pressure plates 4 corresponding to the pressing sections 28 are located directly above the middle of the conveying belts 5, and the positioning pressure plates 4 corresponding to the lifting sections 29 are located directly above the cutting interval 35;

[0059] The support frame 15 is also provided with a transverse cutting mechanism and a longitudinal cutting mechanism, wherein:

[0060] The transverse cutting mechanism includes a transverse cutting motor 36, a cutting shaft 37 and a knife disc 38. The transverse cutting motor 36 is fixedly arranged on the support frame 15. The cutting shaft 37 is rotatably arranged on the support frame 15. The cutting shaft 37 is connected to the output shaft of the transverse cutting motor 36. A plurality of knife discs 38 are fixedly arranged on the cutting shaft 37. The knife disc 38 is located within the cutting interval 35, and the upper part of the knife disc 38 is higher than the upper surface of the conveyor belt 5. When the conveyor belt 5 conveys the wood material, the wood material is cut into several parts under the action of the knife disc 38 when passing through the knife disc 38. The positioning pressing plate 4 is pressed and matched to ensure that the wood material is conveyed to the knife disc 38 with a stable propulsion force for cutting.

[0061] The longitudinal cutting mechanism includes a cutting moving motor 39, a cutting moving screw 40, a cutting guide slide 41 and a cutting moving plate 42. The cutting moving motor 39 is fixedly mounted on the support frame 15. The cutting moving screw 40 is rotatably mounted on the support frame 15 and is connected to the output shaft of the cutting moving motor 39. The cutting guide slide 41 is fixedly mounted on the support frame 15. The cutting moving plate 42 is connected to the cutting moving screw 40 by a thread and is slidably mounted on the cutting guide slide 41. The driving of the cutting moving screw 40 and the guiding of the cutting guide slide 41 play a role in the cutting of the cutting moving screw. The cutting movable plate 42 moves longitudinally relative to the wooden material, a longitudinal cutting motor 43 is installed on the cutting movable plate 42, a cutter disc 2 44 is fixedly provided on the output shaft of the longitudinal cutting motor 43, during the movement of the cutting movable plate 42, the cutter disc 2 44 is driven to move longitudinally relative to the wooden material, and under the action of the longitudinal cutting motor 43, the cutter disc 2 44 is driven to longitudinally cut the wooden material after segmentation, and the wooden material is cut into small pieces under the coordinated action of the transverse cutting and the longitudinal cutting, so as to facilitate the subsequent crushing and grinding by the crushing and grinding mechanism 7.

[0062] See also Fig.12 , Fig.13 , Figure 15-17 In this embodiment, the sealing member 10 includes two groups of symmetrically arranged arc plates, two groups of connecting ears 45 are fixedly provided at both ends of the arc plates, and connecting ears 45 are provided with connecting screw holes 46. The arc plates are configured to be detachably arranged on the support plate 13, and the support plate 13 is used to support the arc plates. The connecting ears 45 corresponding to the two groups of arc plates are connected by connecting bolts 47, and the connecting bolts 47 are installed in the connecting screw holes 46 through threads. Under the action of the connecting bolts 47, the two groups of arc plates can be installed on the outside of the screen 12 of the screening drum 9 to seal the screen 12.

[0063] It is worth noting that in the present embodiment, the number of sealing members 10 is less than the number of sieves 12, ensuring that there is always a sieve 12 corresponding to the sieving area to meet the screening requirements of wood powder. For example, in the present embodiment, the sieves 12 are provided with a total of three mesh sizes, and two sieves 12 of each mesh size are provided. At this time, the sealing members 10 are provided in four groups to block the sieves 12 that do not need to be screened, and the other two sieves 12 correspond to the sieving areas.

[0064] See also Figure 3 , Fig.12 and Fig.14 In this embodiment, a mounting plate 48 is provided below the crushing box 8, a screening motor 49 is fixedly provided on the mounting plate 48, a driving gear 50 is fixedly provided on the output shaft of the screening motor 49, a screening shaft 51 is rotatably provided on the bottom wall of the crushing box 8, a driven gear 52 is fixedly provided on the screening shaft 51, the driven gear 52 is meshed with the driving gear 50, the bottom wall of the screening drum 9 is fixedly connected to the screening shaft 51, the screening drum 9 is driven to rotate by the rotating screening motor 49 through the meshing of the driving gear 50 and the driven gear 52, when the screening drum 9 rotates, the wood powder is efficiently screened by centrifugal force, the screening shaft 51 is a hollow shaft, a lifting cylinder 53 is fixedly provided on the mounting plate 48, the free end of the lifting cylinder 53 passes through the screening shaft 51 and penetrates The bottom wall of the screening cylinder 9 extends into the screening cylinder 9, and a motor seat 54 is fixedly provided at the free end of the lifting cylinder 53. The lifting bottom plate 14 is fixedly connected to the motor seat 54, and a crushing motor 55 is installed on the motor seat 54. A crushing shaft 56 is rotatably provided on the lifting bottom plate 14, and the crushing shaft 56 is connected to the output shaft of the crushing motor 55. A plurality of crushing knives 57 are provided on the crushing shaft 56. Under the action of the crushing motor 55, the crushing knives 57 are driven to rotate through the crushing shaft 56 to finely crush the wood powder that cannot be smoothly screened out, and under the action of the lifting cylinder 53, the height position of the lifting bottom plate 14 and the crushing knife 57 can be adjusted, so that the lifting bottom plate 14 always corresponds to the screen mesh 12 of the lowest screenable area.

[0065] See also Figure 2 , Figure 3 , Fig.12 , Fig.14 and Fig.15In this embodiment, a crushing chamber 58 and a screening chamber 59 are sequentially arranged in the crushing box 8 from top to bottom. The screening drum 9 is rotatably arranged in the screening chamber 59 through the screening shaft 51. A guide plate 60 is arranged between the crushing chamber 58 and the screening chamber 59. A guide bucket 61 is arranged on the guide plate 60. The upper end of the screening drum 9 is connected to the lower end of the guide bucket 61. Under the action of the guide bucket 61, the wood powder in the crushing chamber 58 is introduced into the screening drum 9. A discharge port is opened on the lower side wall of the crushing box 8. A discharge door 62 is installed on the side wall of the crushing box 8 through a hinge. The discharge door 62 is arranged corresponding to the discharge port. When crushing and screening, the discharge door 62 is in a closed state to seal the discharge port. When discharging is required, the discharge door 62 can be opened.

[0066] See also Figure 1 , Figure 2 and Fig.12 In this embodiment, a crushing roller group is rotatably provided in the crushing chamber 58, and the crushing roller group includes two crushing rollers 63 rotating in the opposite direction. A crushing knife 64 is fixedly provided on the side wall of the crushing chamber 58. The cut wood material can be crushed by the cooperation of the two groups of crushing rollers 63 rotating in the opposite direction and the crushing knife 64. A crushing shaft 65 is rotatably provided on the side wall of the crushing box 8. Two crushing shafts 65 are provided corresponding to the crushing rollers 63. The two crushing shafts 65 are respectively connected to the two crushing rollers 63. Two mutually meshing transmission gears 66 are fixedly provided on the two crushing shafts 65. A motor frame 67 is fixedly provided on the side wall of the crushing box 8. A crushing motor 68 is fixedly provided on the motor frame 67. One crushing shaft 65 is connected to the output shaft of the crushing motor 68. Under the action of the two mutually meshing transmission gears 66, the two crushing shafts 65 are driven to rotate in opposite directions, thereby driving the two crushing rollers 63 to rotate in opposite directions to crush the wood material.

[0067] See also Figure 1 , Fig.10 and Fig.12 In this embodiment, a sawdust collecting bucket 69 is provided on the support frame 15, and the sawdust collecting bucket 69 is located below the conveying belt 5 and the cutter disc 38. A conveying pipe 70 is provided between the sawdust collecting bucket 69 and the crushing box 8. At least two groups of crushing roller groups are provided in the crushing chamber 58, and the conveying pipe 70 is located above at least one group of crushing roller groups. A crushing shaft 65 of two adjacent groups of crushing roller groups is connected by a synchronous belt 71. Under the action of the synchronous belt 71, only one crushing motor 68 is required to drive two or more groups of crushing roller groups to move, thereby realizing multi-stage crushing of wood materials, and the sawdust generated during cutting is transported to the crushing chamber 58 through the conveying pipe 70 for crushing again, thereby ensuring the crushing effect of wood powder.

[0068] The working principle of the wood material crushing equipment for wood powder production provided in this embodiment is as follows:

[0069] (1) First, open the discharge door 62, and perform the following operations at the discharge port: select a sieve 12 with a corresponding mesh size as the screenable area according to the particle size of the wood powder to be processed, and move the two arc plates to the support plates 13 of the sieve 12 corresponding to the non-screenable area, so that the two arc plates fit the outer wall of the sieve 12, screw the connecting bolts 47 into the connecting screw holes 46, and install the nuts, so that the two arc plates can be stably installed on the outside of the unused sieve 12. After all the sealing parts 10 corresponding to the non-screenable area are installed, close the discharge door 62; drive the lifting bottom plate 14 to rise and fall under the action of the lifting cylinder 53, so that the lifting bottom plate 14 corresponds to the sieve 12 corresponding to the group of screenable areas located at the bottom.

[0070] (2) Place the wood material on the conveyor belt 5, and place the head end of the wood material below the load-bearing plate 17 as much as possible; drive a set of conveyor shafts 19 to rotate under the action of the conveyor motor 18, and drive the conveyor belt 20 to rotate around the two sets of conveyor shafts 19 through the cooperation of the two sets of conveyor shafts 19; when the conveyor belt 20 rotates, it drives the conveyor block 22 to move along the load-bearing plate 17 through the connecting plate 21, and the smoothness of the movement of the conveyor block 22 can be improved under the action of the ball bearing 23;

[0071] When the conveying block 22 moves, the adjusting guide column 25 is driven to roll along the height adjusting groove 6 through the sliding pressure rod 3. When the adjusting guide column 25 moves from the lifting section 29 to the pressing section 28 via the guide section 30, it drives the sliding pressure rod 3 to slide down along the conveying block 22. The sliding pressure rod 3 drives the positioning pressure plate 4 to press on the wooden material below it, and with the cooperation of the sleeve 32, the embedded rod 33 and the pressing spring 34, it can adapt to wooden materials of different thicknesses, thereby ensuring the stability of the positioning pressure plate 4 in pressing the wooden material.

[0072] (3) With the cooperation of the positioning plate 4 and the conveying belt 5, the wooden material is stably conveyed to the cutter disc 38. The cooperation of the positioning plate 4 can prevent the wooden material from deflecting or slipping during the conveying process, which would result in insufficient propulsion force and inability to move well to the cutter disc 38 for cutting.

[0073] The cutting shaft 37 is driven to rotate by the transverse cutting motor 36, and the cutting shaft 37 drives the cutter disc 1 38 to cut the wider wooden material into strips. As the conveyor belt 5 continues to convey the wooden material through the cutter disc 2 44, the cutting moving screw 40 is driven to rotate by the cutting moving motor 39, and the cutting moving plate 42 is driven to reciprocate under the guidance of the cutting guide slide bar 41. During the reciprocating movement of the cutting moving plate 42, the longitudinal cutting motor 43 drives the cutter disc 2 44 to further cut the wooden material into blocks, and the cut wooden material falls into the crushing box 8.

[0074] At the same time, the adjusting guide column 25 moves from the pressing section 28 to the lifting section 29 through another guiding section 30, releasing the pressing on the wood material, and circulates to the other side of the height adjustment plate 2 with the conveying of the conveyor belt 20, realizing the circulation of the positioning pressure plate 4 and repeating the above-mentioned pressing action.

[0075] (4) The cut wood material falls into the crushing box 8, and a group of crushing shafts 65 are driven to rotate by the crushing motor 68, and a plurality of crushing roller groups are driven to rotate simultaneously through the meshing of the transmission gear 66 and the transmission of the synchronous belt 71, and the two crushing rollers 63 of each crushing roller group rotate in opposite directions. The two crushing rollers 63 cooperate with the crushing knives 64 on the side wall of the crushing chamber 58 to crush the wood material into wood powder; at the same time, the sawdust generated during the cutting process of the knife disc 38 is transported to the crushing chamber 58 through the conveying pipe 70 and crushed by the crushing roller 63.

[0076] (5) The crushed wood powder enters the screening drum 9 through the guide bucket 61, and the active gear 50 is driven to rotate by the screening motor 49, and the meshing of the active gear 50 and the driven gear 52 drives the screening shaft 51 to rotate, and the screening shaft 51 drives the screening drum 9 to rotate. The rotating screening drum 9 efficiently screens the wood powder under the action of centrifugal force. While screening, the crushing motor 55 can be started to drive the crushing shaft 56 to rotate, and the crushing shaft 56 drives the crushing knife 57 to further crush the wood powder in the screening drum 9, ensuring that all the wood powder can meet the required requirements and be screened out from the screen 12. After the processing is completed, the discharge door 62 is opened to take out the processed wood powder from the discharge port.

[0077] It is worth noting that by controlling the screening drum 9 and the pulverizing shaft 56 to rotate in opposite directions, the pulverizing efficiency of the wood powder can be further improved.

[0078] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, material or apparatus including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, material or apparatus.

[0079] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A wood material crushing equipment for wood powder production, characterized in that: include: The conveying and cutting mechanism (1) comprises a height adjustment plate (2), a sliding pressure rod (3), a positioning pressure plate (4) and a conveying belt (5), wherein the height adjustment plate (2) is provided with a height adjustment groove (6), the upper end of the sliding pressure rod (3) is slidably arranged in the height adjustment groove (6), the sliding pressure rod (3) is configured to be guided by the height adjustment groove (6) for height adjustment, the positioning pressure plate (4) is connected to the lower end of the sliding pressure rod (3), the conveying belt (5) is located below the positioning pressure plate (4), the positioning pressure plate (4) is used to press the wooden material on the conveying belt (5), and the positioning pressure plate (4) and the conveying belt (5) are used to convey the wooden material in combination; A crushing and grinding mechanism (7), comprising a crushing box (8), a screening drum (9) and a sealing member (10), wherein the crushing box (8) is arranged below the discharge end of the conveying belt (5), the screening drum (9) is rotatably arranged on the bottom wall of the crushing box (8), a plurality of groups of partitions (11) and screens (12) are arranged at intervals on the screening drum (9), a plurality of groups of the screens (12) are arranged, and the plurality of groups of the screens (12) include a plurality of mesh sizes, a support plate (13) is arranged on the outer periphery of the partition (11), the sealing member (10) is detachably arranged on the support plate (13) and is used for sealing the screens (12), the number of groups of the sealing member (10) being arranged is less than the number of groups of the screens (12), and a lifting bottom plate (14) is slidably arranged in the screening drum (9), and the lifting bottom plate (14) is configured to correspond to the bottommost group of screens (12) of the screening area; The conveying and cutting mechanism (1) further comprises a support frame (15), the conveying belt (5) is rotatably mounted on the support frame (15), the height adjustment plate (2) is fixedly mounted on the top wall of the support frame (15), a load-bearing column (16) is fixedly mounted at the lower end of the height adjustment plate (2), a load-bearing plate (17) is fixedly mounted at the lower end of the load-bearing column (16), a conveying motor (18) is mounted on the load-bearing plate (17), two groups of conveying shafts (19) are rotatably mounted on the load-bearing plate (17), one group of the conveying shafts (19) is connected to the output shaft of the conveying motor (18), and the two groups of the conveying shafts (19) are connected to the output shaft of the conveying motor (18). A conveyor belt (20) is sleeved on the shaft (19), a connecting plate (21) is fixedly provided on the conveyor belt (20), a conveyor block (22) is connected to the connecting plate (21), a ball bearing (23) is provided at the lower end of the conveyor block (22), the conveyor block (22) slides along the bearing plate (17) through the ball bearing (23), a part of the conveyor block (22) extends out of the bearing plate (17), the sliding pressure rod (3) penetrates and slides on the part of the conveyor block (22) extending out of the bearing plate (17), and the conveyor belt (20) has the same linear speed as the conveyor belt (5); A connecting block (24) is fixedly provided at the upper end of the sliding pressure rod (3), an adjusting guide column (25) is rotatably connected to the connecting block (24), the adjusting guide column (25) is engaged and rollingly arranged in the height adjustment groove (6), the height adjustment plate (2) is a runway-shaped structure, a sliding guide cavity (26) is provided inside the height adjustment plate (2) near the side wall, the height adjustment groove (6) penetrates the side wall of the sliding guide cavity (26), the free end of the adjusting guide column (25) is located in the sliding guide cavity (26), and a limiting protrusion (27) is fixedly provided at one end of the adjusting guide column (25) located in the sliding guide cavity (26); The height adjustment slot (6) comprises a pressing section (28), a lifting section (29) and a guiding section (30); the pressing section (28) and the lifting section (29) are respectively arranged on opposite side walls of the height adjustment plate (2); and the lifting section (29) passes through both ends of the height adjustment plate (2) and extends to a side wall on which the pressing section (28) is arranged; the height of the pressing section (28) is lower than the height of the lifting section (29); two groups of guiding sections (30) are arranged respectively between the two ends of the pressing section (28) and the lifting section (29); and the guiding sections (30) are arranged obliquely.

2. The wood material crushing equipment for wood powder production according to claim 1, characterized in that: A connecting plate (31) is fixedly provided at the lower end of the sliding pressure rod (3), a sleeve (32) is fixedly provided on the connecting plate (31), an embedded rod (33) is fixedly provided on the positioning pressure plate (4), the embedded rod (33) is slidably arranged in the sleeve (32), a pressing spring (34) is sleeved on the outer sides of the sleeve (32) and the embedded rod (33), and two ends of the pressing spring (34) are respectively connected to the connecting plate (31) and the positioning pressure plate (4).

3. The wood material crushing equipment for wood powder production according to claim 2 is characterized in that: The connecting plates (21) are provided in multiple groups on the conveying belt (20), the sliding pressure rods (3) and the positioning pressure plates (4) are provided in multiple groups corresponding to the connecting plates (21), the conveying belts (5) are provided in multiple groups on the supporting frame (15), a cutting distance (35) is provided between two adjacent groups of the conveying belts (5), the height adjustment plates (2) are provided in multiple groups corresponding to the conveying belts (5), the positioning pressure plates (4) corresponding to the pressing sections (28) are located directly above the middle of the conveying belts (5), and the positioning pressure plates (4) corresponding to the lifting sections (29) are located directly above the cutting distance (35); The support frame (15) is also provided with a transverse cutting mechanism and a longitudinal cutting mechanism, wherein the transverse cutting mechanism comprises a transverse cutting motor (36), a cutting shaft (37) and a cutter disc (38), wherein the transverse cutting motor (36) is fixedly arranged on the support frame (15), the cutting shaft (37) is rotatably arranged on the support frame (15), the cutting shaft (37) is connected to the output shaft of the transverse cutting motor (36), and a plurality of cutter discs (38) are fixedly arranged on the cutting shaft (37), the cutter discs (38) are located within the cutting interval (35), and the upper portion of the cutter discs (38) is higher than the upper surface of the conveyor belt (5); The longitudinal cutting mechanism comprises a cutting movable motor (39), a cutting movable screw (40), a cutting guide slide bar (41) and a cutting movable plate (42); the cutting movable motor (39) is fixedly mounted on a support frame (15); the cutting movable screw (40) is rotatably mounted on the support frame (15) and is connected to an output shaft of the cutting movable motor (39); the cutting guide slide bar (41) is fixedly mounted on the support frame (15); the cutting movable plate (42) is connected to the cutting movable screw (40) by means of a thread and is slidably mounted on the cutting guide slide bar (41); a longitudinal cutting motor (43) is mounted on the cutting movable plate (42); and a cutter disc 2 (44) is fixedly mounted on the output shaft of the longitudinal cutting motor (43).

4. The wood material crushing equipment for wood powder production according to claim 1, characterized in that: The sealing member (10) comprises two groups of symmetrically arranged arc plates, two groups of connecting ears (45) are respectively fixedly provided at both ends of the arc plates, and connecting ears (45) are provided with connecting screw holes (46). The arc plates are configured to be detachably arranged on a support plate (13), and the support plate (13) is used to support the arc plates. The connecting ears (45) corresponding to the two groups of arc plates are connected by connecting bolts (47), and the connecting bolts (47) are installed in the connecting screw holes (46) by means of threads.

5. The wood material crushing equipment for wood powder production according to claim 1, characterized in that: A mounting plate (48) is provided below the crushing box (8), a screening motor (49) is fixedly provided on the mounting plate (48), a driving gear (50) is fixedly provided on the output shaft of the screening motor (49), a screening shaft (51) is rotatably provided on the bottom wall of the crushing box (8), a driven gear (52) is fixedly provided on the screening shaft (51), the driven gear (52) and the driving gear (50) are meshed, the bottom wall of the screening cylinder (9) is fixedly connected to the screening shaft (51), the screening shaft (51) is a hollow shaft, and a lifting gear (50) is fixedly provided on the mounting plate (48). A lowering cylinder (53), the free end of the lifting cylinder (53) passes through the screening shaft (51) and penetrates the bottom wall of the screening drum (9) to extend into the screening drum (9), a motor seat (54) is fixedly provided at the free end of the lifting cylinder (53), the lifting bottom plate (14) is fixedly connected to the motor seat (54), a crushing motor (55) is mounted on the motor seat (54), a crushing shaft (56) is rotatably provided on the lifting bottom plate (14), the crushing shaft (56) is connected to the output shaft of the crushing motor (55), and a plurality of crushing knives (57) are provided on the crushing shaft (56).

6. The wood material pulverizing equipment for wood powder production according to claim 2, characterized in that: A crushing chamber (58) and a screening chamber (59) are sequentially arranged in the crushing box (8) from top to bottom; the screening drum (9) is rotatably arranged in the screening chamber (59) via a screening shaft (51); a guide plate (60) is arranged between the crushing chamber (58) and the screening chamber (59); a guide bucket (61) is arranged on the guide plate (60); the upper end of the screening drum (9) is connected to the lower end of the guide bucket (61); a discharge port is provided on the lower side wall of the crushing box (8); a discharge door (62) is installed on the side wall of the crushing box (8) via a hinge; the discharge door (62) is arranged corresponding to the discharge port.

7. The wood material pulverizing equipment for wood powder production according to claim 6, characterized in that: A crushing roller group is rotatably arranged in the crushing chamber (58), the crushing roller group comprising two crushing rollers (63) rotating in opposite directions, a crushing knife (64) is fixedly arranged on the side wall of the crushing chamber (58), a crushing shaft (65) is rotatably arranged on the side wall of the crushing box (8), two crushing shafts (65) are arranged corresponding to the crushing rollers (63), the two crushing shafts (65) are respectively connected to the two crushing rollers (63), two mutually meshing transmission gears (66) are fixedly arranged on the two crushing shafts (65), a motor frame (67) is fixedly arranged on the side wall of the crushing box (8), a crushing motor (68) is fixedly arranged on the motor frame (67), and one crushing shaft (65) is connected to the output shaft of the crushing motor (68).

8. The wood material pulverizing equipment for wood powder production according to claim 7, characterized in that: The support frame (15) is provided with a sawdust collecting bucket (69), the sawdust collecting bucket (69) is located below the conveying belt (5), a conveying pipe (70) is provided between the sawdust collecting bucket (69) and the crushing box (8), at least two groups of crushing roller groups are provided in the crushing chamber (58), the conveying pipe (70) is located above at least one group of crushing roller groups, and the crushing shafts (65) of two adjacent groups of crushing roller groups are connected via a synchronous belt (71).

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