Wood powder drying and modifying equipment

Abstract

The invention provides wood powder drying and modifying equipment which comprises a pre-winnowing and drying assembly used for pre-winnowing and pre-drying input wood powder. The material bag feeding assembly is rotationally mounted on the feeding side of the pre-winnowing drying assembly, and the material bag feeding assembly comprises a supporting part, a supporting rod, a tail end clamping part, a front end clamping part and a cutting part; the feeding end of the first spiral feeding machine communicates with the outlet end of the pre-winnowing drying assembly; the screening assembly is installed at the outlet end of the pre-winnowing drying assembly and used for conducting multi-stage screening on the wood powder so as to remove small impurities in the wood powder; the screening assembly comprises a screening box, a screening net belt, a material receiving plate and a second spiral feeding machine. A drum dryer; and modifying the component. According to the device, automatic opening breaking and thorough discharging of a material bag can be achieved, the feeding efficiency is effectively improved, two screening and drying processes are designed, and the modification effect can be effectively guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of wood powder modification processing, and particularly to a wood powder drying and modification device. Background Art

[0002] Wood plastic boards are mainly made by mixing wood powder, plastic particles and some additives; common plastics include polyethylene, polypropylene, polyvinyl chloride, etc., and wood powder usually comes from wood processing residues or waste wood;

[0003] Before making wood plastic particles, it is necessary to modify the wood powder. In the current modification process, it is necessary to mix the wood powder with modification additives, and the modification additives include preservatives, ultraviolet resistant agents, pigments, flame retardants, etc., which are used to improve the performance of wood plastic boards; the existing wood powder modification equipment has the following deficiencies:

[0004] When feeding, most of the time, workers pour the wood powder in the material bag into the feeding conveyor belt. This feeding method will cause the wood powder to float in the feeding area, and there will be wood powder in the air and on the ground in the entire feeding environment, resulting in a poor feeding production environment; for some automatic feeding equipment, there will be a lot of wood powder residue and the feeding is not thorough. Summary of the Invention

[0005] Aiming at the deficiencies of the existing technology, the purpose of the present invention is to provide a wood powder drying and modification device, which can solve the existing problems.

[0006] In order to achieve the above purpose, the technical solution of the present invention is as follows:

[0007] A wood powder drying and modification device includes a pre-air separation and drying assembly, which is used for pre-air separating and pre-drying the input wood powder;

[0008] A material bag feeding assembly, which is rotatably installed on the feeding side of the pre-air separation and drying assembly. The material bag feeding assembly includes a lifting part, a support rod, a tail-end clamping part, a front-end clamping part and a scoring part. The lifting part is rotatably installed on the feeding side of the pre-air separation and drying assembly. A support rod is vertically provided on the top surface of the inner end of the lifting part. The outer side of the top end of the support rod is connected to the tail-end clamping part, and the inner side of the top end of the support rod is connected to the front-end clamping part. The bottom of the output end of the lifting part is connected to the scoring part. The front-end clamping part is used for clamping the front sewing part of the material bag, and the rear clamping part is used for clamping the rear sewing part of the material bag. The scoring part is used for making a discharge port at the bottom of the front end of the material bag; when discharging the material bag, the front-end clamping part flips the front part of the material bag to discharge the residual material in the front part;

[0009] A first screw feeder, whose feeding end is communicated with the outlet end of the pre-air separation and drying assembly;

[0010] The screening component is installed at the outlet end of the pre-air separation and drying component. The screening component is used for multi-stage screening of wood powder to remove small impurities in the wood powder. The screening component includes a screening box, a screening mesh belt, a receiving plate, and a second screw feeder. The screening mesh belt and the receiving plate are installed inside the screening box, and the screening mesh belt is located directly above the receiving plate. At both ends inside the screening mesh belt, there are driving rollers. At the outer ends of the two groups of driving rollers, there is a rectangular frame. The rectangular frame is vertically slidably installed on the inner wall of the screening box, and a vibration motor is installed on the bottom surface of the rectangular frame. The output end of the receiving plate is connected to the second screw feeder through a conduit, and the output end of the second screw feeder is connected to a drum dryer. The waste box is located below the output end of the screening mesh belt. A horizontally slidable cleaning brush plate is installed on the bottom surface of the screening mesh belt.

[0011] The drum dryer is installed at the output end of the second screw feeder. The drum dryer is used for drying and removing the water in the wood powder. The hot air in the drum dryer is transmitted to the screening component and the pre-air separation and drying component through a conduit.

[0012] The modification component is arranged at the output end of the drum dryer. The modification component includes a modification box. At the midline inside the modification box, there is a stirring shaft. On the outer wall of the stirring shaft, there are multiple layers of stirring components. Each layer of stirring component is composed of stirring plates distributed in an annular array. An electric heating sheet is arranged inside the stirring plate. The stirring plates are vertically arranged, and the inner walls of the stirring plates are fixed on the stirring shaft through the first support rods. At the bottom end of the stirring shaft, there is a central plate. On the side wall of the central plate, there are multiple groups of second support rods. At the outer ends of the second support rods, there is a restraint ring. On the outer wall of the restraint ring, there are shovel plates distributed in an annular array.

[0013] Further, the pre-air separation and drying component includes a feeding box, a guiding pipe, and a temporary storage box. Inside the feeding box, there is a vertically arranged vertical partition board. One side of the vertical partition board is a blanking cavity, and the other side is an air flotation feeding cavity. One end of the guiding pipe is connected to the top of the air flotation feeding cavity, and the other end is connected to the temporary storage box. A feeding port is opened at the position of the side surface of the feeding box opposite to the feeding cavity. At the bottom inside the feeding box, there is a horizontal partition board. The horizontal partition board is of a mesh structure, and an upper blower and an inclined blower are installed at the bottom of the horizontal partition board. The upper blower is relatively arranged below the feeding cavity, and the inclined blower is arranged below the blanking cavity.

[0014] Further, the vertical partition board includes a vertical plate, a first vertical folding plate, and a second vertical folding plate. The bottom end of the vertical plate is connected to the first vertical folding plate, and the bottom end of the first vertical folding plate is connected to the second vertical folding plate. Both the first vertical folding plate and the second vertical folding plate are inclined and bent downward towards the blanking cavity. The bottom slope of the first vertical folding plate is smaller than the bottom slope of the second vertical folding plate.

[0015] The cross partition includes a horizontal straight plate, a first horizontal folding plate, a second horizontal folding plate, a vertical mesh plate and an upper inclined plate. The horizontal straight plate, the first horizontal folding plate, the second horizontal folding plate, the vertical mesh plate and the upper inclined plate are all mesh structures. One end of the horizontal straight plate is vertically and fixedly connected to the feeding box, and the other end of the horizontal straight plate is connected to the first horizontal folding plate that slopes downward. The bottom end of the first horizontal folding plate is connected to the second horizontal folding plate, the bottom end of the second horizontal folding plate is connected to the vertically upward vertical mesh plate, the top end of the vertical mesh plate is connected to the upper inclined plate, and the end of the upper inclined plate is fixedly connected to the feeding box. The bottom slope of the first horizontal folding plate is smaller than that of the second horizontal folding plate. The feeding fan is relatively placed at the top of the horizontal straight plate, and the inclined blower is relatively placed outside the vertical mesh plate. The discharged air flow of the inclined blower is parallel to the top of the second horizontal folding plate. The first horizontal folding plate and the second vertical folding plate are arranged parallel to each other, and a material guiding channel is formed between the first horizontal folding plate and the second vertical folding plate. A material receiving cavity is formed between the second horizontal folding plate and the vertical mesh plate.

[0016] Further, a material cleaning component is installed at the top of the second horizontal folding plate. The material cleaning component includes a pushing plate, a screw rod and a guiding rod. The pushing plate slides in the material receiving cavity. A discharge port is opened at one end of the material receiving cavity. A recycling box is installed outside the discharge port. An upwardly rotating blocking plate is installed inside the discharge port, and a first torsion spring is installed at the rotating connection. Two groups of guiding rods are symmetrically arranged inside the pushing plate, and a screw rod is threadedly penetrated through the middle part inside the pushing plate. Both the two groups of guiding rods and the screw rod are installed on the inner wall of the feeding box. The outer end of the guiding rod is connected to a first motor, and the outer end of the screw rod is connected to a second motor. A plurality of receiving grooves are opened on the outer wall of the guiding rod, and a stirring rod is rotatably embedded in each receiving groove, and a second torsion spring is installed at the rotating connection. A resisting rod is arranged on the outer side surface of the pushing plate;

[0017] During feeding, the two groups of guiding rods rotate to make the stirring rods stir the materials in the material receiving cavity clockwise;

[0018] When cleaning the waste materials, the guiding rods do not rotate and the screw rod rotates. When the pushing plate passes by the stirring rods, it will squeeze the stirring rods into the receiving grooves. The resisting rod resists the blocking plate to rotate outward and open, and the waste materials are discharged into the recycling box.

[0019] Further, the tail clamping component includes a first driving rod, a tail rod, a sliding sleeve, a second driving rod and a pneumatic gripper. The first driving rod is arranged parallel to the top side of the lifting component. One end of the first driving rod is vertically and fixedly connected to the top end of the supporting rod. The output end of the first driving rod is vertically rotatably connected to the tail rod. The tail rod is L-shaped. A sliding sleeve is slidably sleeved on the outer wall of the tail rod. A second driving rod is vertically arranged at the bottom surface of the sliding sleeve. The bottom end of the second driving rod is connected to the horizontally arranged pneumatic gripper, and the pneumatic gripper is used to clamp the rear sewing part of the material bag.

[0020] Further, the front clamping component includes a front shield and a suspension plate. On both sides of the top end of the suspension plate, there are side positioning rods which are fixedly arranged at the top end of the support rod. The bottom end of the suspension plate is rotatably connected to the front shield. The side cross-sectional shape of the front shield is adapted to the end of the material bag. At the bottom surface of the front shield, there is a base, and a transmission shaft is installed inside the base. On the outer wall of the transmission shaft, there are symmetrically arranged puncture claws. The top of the puncture claw is a round hook part and the bottom is a lower arc part. The lower arc part is connected to the puncture claw. One end of the transmission shaft is provided with a puncture motor. Symmetrically arranged perforations for the puncture claws to penetrate are opened inside the front shield. The puncture claws are used to puncture into the front end of the material bag from the top surface, and the front shield is used to drive the front part of the material bag to rotate upward, so that the opening at the front part of the material bag faces downward.

[0021] Further, one end of the base is provided with a pusher motor. The output end of the pusher motor is connected to a swing rod, and the top end of the swing rod is connected to a pusher frame. The pusher frame is located inside the front shield and at the top of the front end of the material bag. During puncture, the arc hook part penetrates through the pusher frame; when the material bag has finished pouring, the pusher frame moves along the arc hook part to push out the hooked material bag.

[0022] Further, the lifting component includes a support plate and elastic guide plates. The inner end of the support plate is rotatably placed inside the feeding port. The cross-section of the end of the support plate is U-shaped, and elastic guide plates are symmetrically arranged on both sides of the top of the support plate; the scoring component includes a bottom guide rail, an extension plate and a scoring knife. The bottom guide rail slides horizontally on the bottom surface of the support plate, and the side part of the bottom guide rail is connected to the extension plate, and a scoring knife is arranged on the top surface of the outer end of the extension plate.

[0023] Further, the shovel plate includes a vertical shovel part and an inclined shovel part. The bottom end of the vertical shovel part is connected to the inclined shovel part and the connection part is in an arc angle structure. Exhaust holes are opened on the bottom surface of the inclined shovel part, and the exhaust holes are used to clean the attached wood powder on the inner bottom surface of the modification box; a discharge hole is opened on the bottom surface of the modification box, and an air pump is arranged on the top surface of the modification box, and the air pump is communicated with the exhaust holes.

[0024] Further, a plurality of lighting beads are embedded in the bottom surface of the upper duckbill plate, and the output ends of the opening and closing buttons are connected in parallel to the lighting beads.

[0025] Compared with the prior art, the beneficial effects of the present invention include:

[0026] 1. The setting of the pre-air separation and drying assembly can achieve the following effects: it can pre-air separate the input wood powder. Utilizing the characteristic that the wood powder is light in weight, when the hot air is discharged upward, the wood powder can move upward following the air flow, while the heavier impurities can fall downward, realizing the pre-drying and screening treatment of the wood powder;

[0027] 2. When the material bag is input, it is first constrained and guided by the lifting component so that the material bag can accurately enter the specified position. The tail clamping component can clamp the rear sewing part of the material bag, the front clamping component can clamp and position the front sewing part of the material bag, and the slitting component can slit the material bag from below the front end, so that the wood powder in the material bag can be directly discharged downward to achieve rapid blanking. After the material bag has been discharging for a period of time, the front clamping component rotates upward to drive the front sewing part of the material bag to rotate upward, thereby discharging the residual wood powder in the front part of the material bag and achieving complete discharging.

[0028] 3. The first screw feeder conveys the wood powder to the screening mesh belt. The vibration motor drives the rectangular frame to vibrate, and then drives the screening mesh belt to vibrate up and down. The impurities in the wood powder are intercepted on the screening mesh belt, and the wood powder passes through the screening mesh belt and falls into the receiving plate. The receiving plate vibrates to discharge the wood powder to the second screw feeder, and the large-size impurities intercepted by the screening mesh belt are discharged to the waste box.

[0029] 4. The drum dryer can fully dry the wood powder, thereby removing the water in the wood powder and facilitating subsequent mixing and processing.

[0030] 5. The dried wood powder is mixed with various modifiers in the modification box. The stirring shaft drives the stirring plate and the central plate to rotate, and the central plate drives each group of shovel plates to rotate. The stirring plate and the shovel plates can perform three-dimensional stirring on the wood powder, so that the wood powder and the modifiers are fully mixed. The electric heating sheets in each group of stirring plates can assist in heating the modification box to make the mixing effect better. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0032] Figure 1 It is a schematic diagram of the overall structure of a wood powder drying and modification device of the present invention; Figure 2 It is a schematic diagram of the structure of the lifting component of the present invention; Figure 3 It is a schematic diagram of the internal structure of the feeding box of the present invention; Figure 4 It is a schematic diagram of the structure of the vertical partition of the present invention; Figure 5 It is a schematic diagram of the structure of the horizontal partition of the present invention; Figure 6 It is a schematic diagram of the structure of the guide rod of the present invention; Figure 7 It is a schematic diagram of the structure of the material cleaning component of the present invention; Figure 8 Schematic structural diagram of the clamping state of the front clamping component of the present invention; Figure 9 Schematic structural diagram of the connection between the puncture claw and the pushing frame of the present invention; Figure 10 Schematic structural diagram of the tail clamping component of the present invention; Figure 11 is Figure 3 Schematic enlarged structural diagram of part A of Figure 12 Schematic structural diagram of the rotation of the front clamping component of the present invention; Figure 13 Schematic structural diagram of the screening component of the present invention; Figure 14 Schematic structural diagram of the modification component of the present invention; Figure 15 Schematic structural diagram of the shovel plate of the present invention; Figure 16 Schematic structural diagram of the connection of the restraint ring of the present invention; Description of the markings in the figure: 1. Pre-wind selection and drying component, 11. Feeding box, 111. Discharge port, 1111. Plugging plate, 112. Recycling box, 113. Feeding port, 12. Guide pipe, 13. Temporary storage box, 14. Vertical partition, 141. Vertical plate, 142. First vertical folding plate, 143. Second vertical folding plate, 15. Horizontal partition, 151. Horizontal straight plate, 152. First horizontal folding plate, 153. Second horizontal folding plate, 154. Vertical mesh plate, 155. Upper inclined plate, 16. Upper blower, 17. Inclined blower, 18. Material cleaning component, 181. Pushing plate, 182. Screw rod, 1821. First motor, 183. Guide rod, 1831. Second motor, 184. Accommodating groove, 185. Stirring rod, 186. Contact rod, 2. Tail-end clamping component, 21. First driving rod, 22. Tail-end rod, 23. Sliding sleeve, 24. Second driving rod, 24. Pneumatic gripper, 3. Lifting component, 31. Support plate, 32. Elastic guide plate, 33. Support rod, 4. Scoring component, 41. Bottom guide rail, 42. Extended plate, 43. Scoring knife, 5. Front-end clamping component, 51. Front cover, 511. Perforation, 52. Side positioning rod, 53. Hanging plate, 54. Piercing claw, 541. Round hook part, 542. Lower arc part, 543. Transmission shaft, 544. Piercing motor, 55. Base, 56. Pushing material frame, 561. Swing rod, 57. Pushing material motor, 6. Screening component, 61. Screening box, 62. Screening mesh belt, 63. Material receiving plate, 64. Rectangular frame, 641. Vibration motor, 65. Cleaning brush plate, 66. Second spiral feeder, 67. Waste box, 7. Modifying component, 71. Modifying box, 711. Discharge hole, 72. Stirring shaft, 73. Stirring plate, 731. First support rod, 74. Central plate, 741. Second support rod, 75. Constraint ring, 76. Shoveling plate, 761. Vertical shoveling part, 762. Inclined shoveling part, 763. Exhaust hole, 77. Air pump, 8. First spiral feeder, 9. Material bag, 91. Front sewing part, 92. Rear sewing part, 9a. Drum dryer. Detailed implementation

[0048] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be described clearly and completely. Apparently, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0049] As Figures 1-8 shown, the present invention provides a wood powder drying and modification device, a pre-air separation and drying assembly 1, which is used to perform pre-air separation and pre-drying treatment on the input wood powder;

[0050] A material bag 9 feeding assembly, which is rotatably installed on the feeding side of the pre-air separation and drying assembly 1. The material bag 9 feeding assembly includes a lifting component 3, a support rod 33, a tail-end clamping component 2, a front-end clamping component 5, and a slitting component 4. The lifting component is rotatably installed on the feeding side of the pre-air separation and drying assembly 1. A support rod 33 is vertically provided on the inner end top surface of the lifting component. The outer side of the top end of the support rod 33 is connected to the tail-end clamping component 2, and the inner side of the top end of the support rod 33 is connected to the front-end clamping component 5. The output end bottom of the lifting component is connected to the slitting component 4. The front-end clamping component 5 is used to clamp the front sewing part 91 of the material bag 9, and the rear clamping component is used to clamp the rear sewing part 92 of the material bag 9. The slitting component 4 is used to cut a discharge port 111 at the front bottom of the material bag 9; when the material bag 9 is discharging, the front-end clamping component 5 flips the front part of the material bag 9 to discharge the front residual material;

[0051] A first screw feeder 8, whose feeding end is communicated with the outlet end of the pre-air separation and drying assembly 1;

[0052] A screening assembly 6, which is installed at the outlet end of the pre-air separation and drying assembly 1. The screening assembly 6 is used to perform multi-stage screening on the wood powder to remove small impurities in the wood powder; the screening assembly 6 includes a screening box 61, a screening mesh belt 62, a receiving plate 63, and a second screw feeder 66. The screening mesh belt 62 and the receiving plate 63 are installed inside the screening box 61, and the screening mesh belt 62 is located directly above the receiving plate 63; transmission rollers are provided at both ends inside the screening mesh belt 62, and a rectangular frame 64 is provided at the outer ends of the two groups of transmission rollers. The rectangular frame 64 is vertically slidably installed on the inner wall of the screening box 61, and a vibration motor 641 is installed on the bottom surface of the rectangular frame 64; a cleaning brush plate 65 that slides horizontally is installed on the bottom surface of the screening mesh belt;

[0053] A drum dryer 9a, which is installed at the output end of the screening assembly 6. The drum dryer 9a is used to dry and remove the water in the wood powder. The hot air in the drum dryer 9a is transmitted to the screening assembly 6 and the pre-air separation and drying assembly 1 through a conduit;

[0054] A modified component 7 is provided at the output end of the drum dryer 9a; the modified component 7 includes a modification box 71, a stirring shaft 72 is installed at the midline inside the modification box 71, and multiple layers of stirring components are provided on the outer wall of the stirring shaft 72. Each layer of the stirring component consists of stirring plates 73 distributed in an annular array. Electric heating sheets are built into the stirring plates, and the stirring plates are arranged vertically. The inner walls of the stirring plates are fixedly arranged on the stirring shaft through the first support rods 731; a central plate 74 is provided at the bottom end of the stirring shaft 72, and multiple groups of second support rods 741 are provided on the side wall of the central plate 74. A restraint ring 75 is provided at the outer end of the second support rod 741, and shoveling plates 76 distributed in an annular array are provided on the outer wall of the restraint ring 75.

[0055] In the above solution:

[0056] 1. The setting of the pre-air separation drying component 1 can achieve the following effects: it can pre-air separate the input wood powder. Utilizing the light weight of the wood powder, when the hot air is discharged upward, the wood powder can move upward following the airflow, while the heavier impurities can fall downward, realizing the pre-drying and screening treatment of the wood powder;

[0057] 2. When the material bag 9 is input, it is first constrained and guided by the lifting component 3, so that the material bag 9 accurately enters the designated position. The tail-end clamping component 2 can clamp the rear sewing part 92 of the material bag 9, and the front clamping component 5 can clamp and position the front sewing part 91 of the material bag 9. The slitting component 4 can slit the material bag 9 from below the front end. In this way, the wood powder in the material bag 9 can be directly discharged downward, realizing rapid blanking. After the material bag 9 has discharged for a period of time, the front clamping component 5 rotates upward to drive the front sewing part 91 of the material bag 9 to rotate upward, thereby discharging the remaining wood powder in the front part of the material bag 9 and realizing complete discharging;

[0058] 3. The first screw feeder 8 conveys the wood powder to the screening mesh belt 62. The vibration motor 641 drives the rectangular frame 64 to vibrate, and then drives the screening mesh belt 62 to vibrate up and down. The impurities in the wood powder are intercepted on the screening mesh belt 62, and the wood powder passes through the screening mesh belt 62 and falls into the receiving plate 63. The receiving plate 63 vibrates to discharge the wood powder to the second screw feeder 66, and the large-size impurities intercepted by the screening mesh belt 62 are discharged to the waste box 67;

[0059] 4. The drum dryer 9a can fully dry the wood powder, thereby removing the water in the wood powder and facilitating subsequent mixing and processing;

[0060] 5. The dried wood powder is mixed with various modifiers in the modification box 71. Exemplary modifiers are flame retardants, coupling agents, compatibilizers, compatibilizers; the stirring shaft 72 drives the stirring plates and the central plate 74 to rotate, and the central plate 74 drives each group of shoveling plates 76 to rotate. The stirring plates 73 and the shoveling plates 76 can perform three-dimensional stirring on the wood powder, enabling the wood powder to be fully mixed with the modifiers. The electric heating sheets in each group of stirring plates can assist in heating the modification box 71, making the mixing effect better.

[0061] In this embodiment, the pre-air separation and drying assembly 1 includes a feeding box 11, a guiding pipe 12, and a temporary storage box 13. Inside the feeding box 11, there is a vertically arranged vertical partition 14. One side of the vertical partition 14 is a blanking cavity, and the other side is an air flotation feeding cavity. One end of the guiding pipe 12 communicates with the top of the air flotation feeding cavity, and the other end communicates with the temporary storage box 13. A feeding port 113 is opened at the position of the side of the feeding box 11 opposite to the feeding cavity. At the bottom inside the feeding box 11, there is a horizontal partition 15. The horizontal partition 15 is of a mesh structure. An upper blower 16 and an inclined blower 17 are installed at the bottom of the horizontal partition 15. The upper blower 16 is relatively arranged below the feeding cavity, and the inclined blower 17 is arranged below the blanking cavity.

[0062] In the above solution: during pouring, the wood powder is discharged downward to the feeding end of the horizontal partition 15. The inclined blower 17 can discharge the wood powder, and then the upper blower 16 discharges it to blow the wood powder upward. The wood powder moves upward along the air flotation feeding cavity and is then discharged to the temporary storage box 13 through the guiding pipe 12. The horizontal partition 15 can conduct air flow and intercept impurities, and the heavier impurities fall onto the horizontal partition 15. The vertical partition 14 can achieve vertical separation to form a separated area to avoid interference between blanking and air flotation feeding.

[0063] In this embodiment, the vertical partition 14 includes a vertical plate 141, a first vertical folding plate 142, and a second vertical folding plate 143. The bottom end of the vertical plate 141 is connected to the first vertical folding plate 142, and the bottom end of the first vertical folding plate 142 is connected to the second vertical folding plate 143. Both the first vertical folding plate 142 and the second vertical folding plate 143 are inclined and bent downward toward the blanking cavity. The bottom slope of the first vertical folding plate 142 is smaller than the bottom slope of the second vertical folding plate 143.

[0064] In the above solution: the design of the two-segment bending of the first vertical folding plate 142 and the second vertical folding plate 143 can not affect the rotation of the front clamping component 5, and can fully guide the wood powder and block the air flow to avoid the backflow of the wood powder.

[0065] In this embodiment, the transverse partition 15 includes a transverse plate 151, a first transverse folding plate 152, a second transverse folding plate 153, a vertical mesh plate 154 and an upper inclined plate 155. The transverse plate 151, the first transverse folding plate 152, the second transverse folding plate 153, the vertical mesh plate 154 and the upper inclined plate 155 are all mesh structures. One end of the transverse plate 151 is vertically fixedly connected to the loading box 11, and the other end of the transverse plate 151 is connected to the first transverse folding plate 152 inclined downward, the bottom end of the first transverse folding plate 152 is connected to the second transverse folding plate 153, and the bottom end of the second transverse folding plate 153 is connected to the vertical mesh plate 154 vertically upward, and the vertical mesh plate 154 is connected to the first transverse folding plate 152. The top of the first transverse folding plate 152 is connected to the upper inclined plate 155, the end of the upper inclined plate 155 is fixedly connected to the loading box 11, the bottom surface inclination of the first transverse folding plate 152 is smaller than the bottom surface inclination of the second transverse folding plate 153, the loading fan is relatively arranged on the top of the transverse and vertical plates 151, the oblique blower 17 is relatively arranged on the outside of the vertical mesh plate 154, the exhaust airflow of the oblique blower 17 is parallel to the top of the second transverse folding plate 153, the first transverse folding plate 152 and the second vertical folding plate 143 are arranged parallel to each other, and a material guide channel is formed between the first transverse folding plate 152 and the second vertical folding plate 143, and a material receiving cavity is formed between the second transverse folding plate 153 and the vertical mesh plate 154;

[0066] In the above scheme: the fallen wood powder falls onto the second transverse folding plate 153, and then is discharged by the oblique blower 17, so that the wood powder enters the material guide channel, and then moves to the top of the transverse plate 151, and finally, is discharged through the air flotation feeding cavity. The material guide channel is the main screening area, and the wood powder is discharged. Heavier impurities will be discharged along the first transverse folding plate 152 to the second transverse folding plate 153 for centralized cleaning.

[0067] In this embodiment, a material cleaning assembly 18 is installed on the top of the second transverse folding plate 153, and the material cleaning assembly 18 includes a push plate 181, a screw 182, and a guide rod 183. The push plate 181 is slidably placed in the material receiving cavity, and a discharge port 111 is opened at one end of the material receiving cavity. A recovery box 112 is installed on the outside of the discharge port 111, and a blocking plate 1111 that is rotated upward and opened is installed inside the discharge port 111, and a first torsion spring is installed at the rotation connection. Two sets of guide rods 183 are symmetrically arranged inside the push plate 181. 83, a screw rod 182 is threaded through the middle of the inner part of the push plate 181, two sets of guide rods 183 and the screw rod 182 are installed on the inner wall of the loading box 11, the outer end of the guide rod 183 is connected to the first motor 1821, and the outer end of the screw rod 182 is connected to the second motor 1831. The outer wall of the guide rod 183 is provided with multiple sets of receiving grooves 184, and the inner rotation of each set of receiving grooves 184 is embedded with a stirring rod 185 and a second torsion spring is installed at the rotation connection. The outer side surface of the push plate 181 is provided with a resistance rod 186;

[0068] When feeding, the two sets of guide rods 183 rotate so that the stirring rod 185 stirs the material in the receiving chamber clockwise. Specifically, the first motor 1821 drives the guide rod 183 to rotate, thereby driving the stirring rod 185 to rotate, and the stirring rod 185 can stir the receiving chamber to avoid wood powder clogging. At the same time, the stirring rod 185 rotates clockwise, and the conveying direction is adapted to the airflow direction, so that the wood powder is discharged faster.

[0069] When cleaning waste, the guide rod 183 does not rotate, but the screw 182 rotates, and the push plate 181 passes through the stirring rod 185 to squeeze the stirring rod 185 into the accommodating groove 184, and the resistance rod 186 resists the sealing plate 1111 to rotate outward to open and discharge the waste into the recycling box 112; after the loading is completed, the second motor 1831 drives the screw 182 to rotate, so that the push plate 181 translates, and the guide rod 183 guides the movement of the push plate 181. During the movement of the push plate 181, the waste in the material receiving chamber will be pushed out, and when the push plate 181 moves to the end, the resistance rod 186 resists the sealing plate 1111 to rotate upward to open, and the waste can be discharged into the recycling box 112.

[0070] In this embodiment, the tail end clamping component 2 includes a first driving rod 21, a tail end rod 22, a sliding sleeve 23, a second driving rod 24 and a pneumatic clamp 24. The first driving rod 21 is arranged in parallel at the top side of the supporting component 3. One end of the first driving rod 21 is vertically fixedly connected to the top of the support rod 33. The output end of the first driving rod 21 is vertically rotatably connected to the tail end rod 22. The tail end rod 22 is L-shaped. The outer wall of the tail end rod 22 is slidably sleeved with a sliding sleeve 23. The bottom surface of the sliding sleeve 23 is vertically provided with a second driving rod 24. The bottom end of the second driving rod 24 is connected to a horizontally arranged pneumatic clamp 24. The pneumatic clamp 24 is used to clamp the rear sewing part 92 of the material bag 9.

[0071] In the above scheme: during clamping, the first driving rod 21 and the second driving rod synchronously adjust the position of the pneumatic clamping jaws 24 , and the pneumatic clamping jaws 24 clamp the rear sewing portion 92 .

[0072] In this embodiment, the front clamping component 5 includes a front shield 51 and a suspension plate 53. On both sides of the top end of the suspension plate 53, there are side positioning rods 52 which are fixedly arranged at the top end of the support rod 33. The bottom end of the suspension plate 53 is rotatably connected to the front shield 51. The side cross-sectional shape of the front shield 51 is adapted to the end of the material bag 9. On the bottom surface of the front shield 51, there is a base 55. Inside the base 55, a transmission shaft 543 is installed. On the outer wall of the transmission shaft 543, there are puncture claws 54 symmetrically arranged. The top of the puncture claw 54 is a round hook part 541 and the bottom is a lower arc part 542. The lower arc part 542 is connected to the puncture claw 54. One end of the transmission shaft 543 is provided with a puncture motor 544. Symmetrically arranged inside the front shield 51 are through holes 511 for the puncture claws 54 to penetrate. The puncture claws 54 are used to puncture the front end of the material bag 9 from the top surface, and the front shield 51 is used to drive the front part of the material bag 9 to rotate upward, so that the opening at the front part of the material bag 9 faces downward.

[0073] One end of the base 55 is provided with a pushing motor 57. The output end of the pushing motor 57 is connected to a swing rod 561. The top end of the swing rod 561 is connected to a pushing frame 56. The pushing frame 56 is located inside the front shield 51 and at the top of the front end of the material bag 9. During puncture, the arc hook part penetrates through the pushing frame 56; when the material bag 9 has finished discharging, the pushing frame 56 moves along the arc hook part to push out the hooked material bag 9.

[0074] In the above solution, the lifting component 3 rotates upward, causing the material bag 9 to rotate upward to an inclined state. Under the action of its own weight, the material bag 9 outputs to abut against the inside of the front shield 51. The transmission shaft 543 rotates, so that the puncture claws 54 puncture the top surface of the front end of the material bag 9. During the puncture process, the first driving rod retracts, thereby pushing the material bag closer to the front shield; when discharging the remaining material at the front later, the front shield 51 rotates upward, and the puncture claws 54 can restrain and position the front part of the material bag 9 to ensure that when rotating later, the front part of the material bag 9 can stably follow the rotation, ensuring the stability of discharging.

[0075] When the discharging is completed, in order to facilitate the worker to remove the material bag 9, the pushing motor drives the swing rod to rotate, thereby driving the pushing frame to rotate along the arc hook part, and then pushing out the material bag to disengage from the arc hook part.

[0076] In this embodiment, the lifting component 3 includes a support plate 31 and an elastic guide plate 32. The inner end of the support plate 31 is rotatably placed in the feeding port 113. The end cross-section of the support plate 31 is U-shaped. On both sides of the top of the support plate 31, there are elastic guide plates 32 symmetrically arranged; the scoring component 4 includes a bottom guide rail 41, an extension plate 42 and a scoring knife 43. The bottom guide rail 41 is horizontally slidably arranged on the bottom surface of the support plate 31. The side part of the bottom guide rail is connected to the extension plate, and the scoring knife is arranged on the top surface of the outer end of the extension plate.

[0077] In the above solution: The material bag 9 is input onto the pallet 31. The elastic guide plates 32 can restrain the material bag 9 from both sides. When the pallet 31 rotates upward, the material bag 9 enters between the two groups of elastic guide plates 32, and the elastic guide plates 32 can ensure that the material bag 9 stably enters the front shield 51. There is a gap for the cutting knife to extend between the front shield 51 and the pallet 31. The outer extension plate 42 moves along the bottom guide rail 41, thereby driving the cutting knife 43 to translate and cut the bottom of the front end of the material bag 9.

[0078] In this embodiment, the shovel plate 76 includes a vertical shovel part 761 and an inclined shovel part 762. The bottom end of the vertical shovel part 761 is connected to the inclined shovel part 762 and the connection part is in an arc angle structure. The bottom surface of the inclined shovel part 762 is provided with exhaust holes 763 for cleaning the attached wood powder on the inner bottom surface of the modification box 71. The bottom surface of the modification box 71 is provided with a discharge hole 711, and an air pump 77 is provided on the top surface of the modification box 71. The air pump 77 is communicated with the exhaust holes 763.

[0079] In the above solution: During modification, the inclined shovel part 762 can shovel up the wood powder at the bottom of the modification box 71, and the high-pressure gas input by the external air pump 77 can be discharged downward through the exhaust holes 763, thereby further impacting the wood powder, so that the wood powder can be shoveled up by the subsequent inclined shovel part 762 to avoid wood powder adhesion, thereby improving the mixing efficiency.

[0080] After the modification is completed and the wood powder needs to be output, the inclined shovel part 762 can push the wood powder to the discharge hole 711, with a fast discharge speed and thorough discharge.

[0081] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including the said element.

[0082] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A wood powder drying and modification device, characterized in that: include: A pre-air separation and drying component, which is used to perform pre-air separation and pre-drying treatment on the input wood powder; A material bag loading assembly is rotatably mounted on the feeding side of the pre-air separation and drying assembly. The material bag loading assembly comprises a lifting component, a support rod, a tail end clamping component, a front end clamping component and a notching component. The lifting component is rotatably mounted on the feeding side of the pre-air separation and drying assembly. A support rod is vertically arranged on the inner end top surface of the lifting component. The outer side of the top end of the support rod is connected to the tail end clamping component. The inner side of the top end of the support rod is connected to the front end clamping component. The bottom of the output end of the lifting component is connected to the notching component. The front end clamping component is used to clamp the front sewing part of the material bag. The rear end clamping component is used to clamp the rear sewing part of the material bag. The notching component is used to cut a discharge port at the bottom of the front end of the material bag. When the material bag is unloaded, the front end clamping component flips the front part of the material bag to discharge the front residual material. A first spiral feeder, whose feeding end is connected to the outlet end of the pre-air separation and drying component; A screening component is installed at the outlet end of the pre-air separation and drying component. The screening component is used for multi-stage screening of wood powder to remove small impurities in the wood powder. The screening component includes a screening box, a screening mesh belt, a receiving plate, and a second spiral feeder. The screening mesh belt and the receiving plate are installed inside the screening box, and the screening mesh belt is located directly above the receiving plate. Transmission rollers are provided at both ends of the inner part of the screening mesh belt, and rectangular frames are provided at the outer ends of the two sets of transmission rollers. The rectangular frames are vertically slidably installed on the inner wall of the screening box, and a vibration motor is installed on the bottom surface of the rectangular frame. The output end of the receiving plate is connected to the second spiral feeder through a conduit, and the output end of the second spiral feeder is connected to the drum dryer. The waste box is located below the output end of the screening mesh belt; a horizontally sliding cleaning brush plate is installed on the bottom surface of the screening mesh belt. A drum dryer is installed at the output end of the second spiral feeder. The drum dryer is used to dry and remove water from the wood powder. The hot air in the drum dryer is transmitted to the screening component and the pre-air selection drying component through the conduit. A modification component is arranged at the output end of the drum dryer; the modification component includes a modification box, a stirring shaft is installed at the inner center line of the modification box, the outer wall of the stirring shaft is provided with multiple layers of stirring components, each layer of stirring components is composed of stirring plates distributed in a circular array, the stirring plates are equipped with electric heating plates, the stirring plates are arranged vertically, and the inner wall of the stirring plates is fixed on the stirring shaft through a first support rod; a center plate is provided at the bottom end of the stirring shaft, a plurality of groups of second support rods are provided on the side wall of the center plate, a constraint ring is provided at the outer end of the second support rod, and a shovel plate distributed in a circular array is provided on the outer wall of the constraint ring.

2. The wood powder drying and modification equipment according to claim 1, characterized in that: The pre-air selection and drying component includes a loading box, a material guide pipe and a temporary storage box. The interior of the loading box is provided with a vertical partition arranged vertically. One side of the vertical partition is a material discharge chamber, and the other side is an air flotation loading chamber. One end of the material guide pipe is connected to the top of the air flotation loading chamber, and the other end is connected to the temporary storage box. A loading port is opened on the side of the loading box at a position relative to the loading chamber; a horizontal partition is provided at the bottom of the interior of the loading box, and the horizontal partition is a mesh structure. An upper blower and an oblique blower are installed at the bottom of the horizontal partition. The upper blower is relatively arranged below the loading chamber, and the oblique blower is arranged below the loading chamber.

3. The wood powder drying and modification equipment according to claim 2, characterized in that: The vertical partition includes a vertical plate, a first vertical folding plate and a second vertical folding plate. The bottom end of the vertical plate is connected to the first vertical folding plate, and the bottom end of the first vertical folding plate is connected to the second vertical folding plate. The first vertical folding plate and the second vertical folding plate are both inclined and bent toward the lower material cavity, and the bottom surface slope of the first vertical folding plate is smaller than the bottom surface slope of the second vertical folding plate.

4. The wood powder drying and modification equipment according to claim 3, characterized in that: The cross partition includes a horizontal and vertical plate, a first horizontal folding plate, a second horizontal folding plate, a vertical mesh plate and an upper inclined plate. The horizontal and vertical plates, the first horizontal folding plate, the second horizontal folding plate, the vertical mesh plate and the upper inclined plate are all mesh structures. One end of the horizontal and vertical plate is vertically fixedly connected to the loading box, and the other end of the horizontal and vertical plate is connected to the first horizontal folding plate inclined downward, the bottom end of the first horizontal folding plate is connected to the second horizontal folding plate, the bottom end of the second horizontal folding plate is connected to the vertical mesh plate vertically upward, the top of the vertical mesh plate is connected to the upper inclined plate, and the end of the upper inclined plate is fixedly connected to the loading box, the bottom surface inclination of the first horizontal folding plate is smaller than the bottom surface inclination of the second horizontal folding plate, the loading fan is relatively arranged on the top of the horizontal and vertical plates, the oblique hair dryer is relatively arranged on the outside of the vertical mesh plate, the exhaust airflow of the oblique hair dryer is parallel to the top of the second horizontal folding plate, the first horizontal folding plate and the second vertical folding plate are arranged parallel to each other, and a material guiding channel is formed between the first horizontal folding plate and the second vertical folding plate, and a material receiving cavity is formed between the second horizontal folding plate and the vertical mesh plate.

5. The wood powder drying and modification equipment according to claim 4, characterized in that: A material clearing assembly is installed on the top of the second transverse folding plate, and the material clearing assembly includes a push plate, a screw rod, and a guide rod. The push plate is slidably placed in the material receiving cavity, and a discharge port is opened at one end of the material receiving cavity. A recovery box is installed on the outside of the discharge port, and a blocking plate that is rotated upward to open is installed inside the discharge port, and a first torsion spring is installed at the rotating connection. Two groups of guide rods are symmetrically arranged inside the push plate, and a screw rod is threaded through the middle part of the inner part of the push plate. The two groups of guide rods and the screw rod are installed on the inner wall of the feeding box, the outer end of the guide rod is connected to the first motor, and the outer end of the screw rod is connected to the second motor. A plurality of groups of accommodating grooves are opened on the outer wall of the guide rod, and a stirring rod is rotatably embedded in the inner part of each group of accommodating grooves, and a second torsion spring is installed at the rotating connection. A resistance rod is provided on the outer side of the push plate; When feeding, the two sets of guide rods rotate so that the stirring rod stirs the material in the receiving chamber clockwise; When cleaning waste, the guide rod does not rotate, the screw rod rotates, the push plate passes through the stirring rod and squeezes the stirring rod into the receiving groove, the resistance rod resists the blocking plate to rotate outward to open and discharge the waste into the recycling box.

6. The wood powder drying and modification equipment according to claim 5, characterized in that: The tail end clamping component includes a first driving rod, a tail end rod, a sliding sleeve, a second driving rod and a pneumatic clamp. The first driving rod is arranged parallel to the top side of the supporting component. One end of the first driving rod is vertically fixedly connected to the top of the supporting rod. The output end of the first driving rod is vertically rotatably connected to the tail end rod. The tail end rod is L-shaped. The outer wall of the tail end rod is slidably sleeved with a sliding sleeve. The bottom surface of the sliding sleeve is vertically provided with a second driving rod. The bottom end of the second driving rod is connected to a horizontally arranged pneumatic clamp, which is used to clamp the rear sewing part of the material bag.

7. The wood powder drying and modification equipment according to claim 6, characterized in that: The front end clamping component includes a front block cover and a hanging plate. Side positioning rods are provided on both sides of the top end of the hanging plate. The side positioning rods are fixed to the top end of the supporting rods. The bottom end of the hanging plate is rotatably connected to the front block cover. The side cross-sectional shape of the front block cover is adapted to the end of the material bag. A base is provided on the bottom surface of the front block cover. A transmission shaft is installed inside the base. Piercing claws are symmetrically provided on the outer wall of the transmission shaft. The top of the piercing claw is a round hook portion and the bottom is a lower arc portion. The lower arc portion is connected to the piercing claw. A piercing motor is provided at one end of the transmission shaft. Through holes for the piercing claws to penetrate are symmetrically opened inside the front block cover. The piercing claws are used to pierce into the front end of the material bag from the top surface. The front block cover is used to drive the front part of the material bag to rotate upward so that the opening of the front part of the material bag faces downward.

8. The wood powder drying and modification equipment according to claim 7, characterized in that: A pushing motor is provided at one end of the base, the output end of the pushing motor is connected to a rocker arm, the top end of the rocker arm is connected to a pushing frame, the pushing frame is located inside the front baffle and at the top of the front end of the material bag, and during puncture, the arc hook penetrates the pushing frame; when the material bag is emptied, the pushing frame moves along the arc hook to push out the hooked material bag.

9. The wood powder drying and modification equipment according to claim 8, characterized in that: The lifting component includes a support plate and an elastic guide plate. The inner end of the support plate is rotatably placed in the loading port. The end cross-section of the support plate is U-shaped, and elastic guide plates are symmetrically provided on both sides of the top of the support plate. The scoring component includes a bottom guide rail, an overhanging plate and a scoring knife. The bottom guide rail is laterally slidably arranged on the bottom surface of the support plate, the side of the bottom guide rail is connected to the overhanging plate, and the top surface of the outer end of the overhanging plate is provided with a scoring knife.

10. The wood powder drying and modification equipment according to claim 9, characterized in that: The shovel plate includes a vertical shovel part and an oblique shovel part. The bottom end of the vertical shovel part is connected to the oblique shovel part and the connection is an arc angle structure. An exhaust hole is opened on the bottom surface of the oblique shovel part, and the exhaust hole is used to clean the wood powder attached to the bottom surface of the modification box; a discharge hole is opened on the bottom surface of the modification box, and an air pump is arranged on the top surface of the modification box, and the air pump is connected to the exhaust hole.

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