Wood chip screening machine for medium-density fiberboard processing
By using motor and push rod system to unblock the screen plate in the medium-density fiberboard processing wood chip screening machine, the problem of screen plate blockage is solved, ensuring the sustainability and practicality of the screening effect.
Patent Information
- Application Number
- CN202323368264.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-11
- Publication Date
- 2024-12-13
- Estimated Expiration
- 2033-12-11
AI Technical Summary
The existing medium-density fiberboard processing wood chip screening machine cannot effectively clean the screen board, resulting in clogging of the screen board and affecting the subsequent screening effect.
A medium-density fiberboard processing wood chip screening machine is designed, and the threaded rod and the electric push rod are used to drive the screen plate to unblock the screen plate. Through the cooperation of the threaded plate and the screw rod, the screen plate is moved backward and the pressing block is moved downward. Clean up blockages in the screen groove to ensure the smooth flow of the screen plate.
It effectively prevents clogging of the screen plate, ensures the subsequent screening effect of fiberboard wood chips, and improves the practicality of the screening machine.
Smart Images
Figure CN222152790U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of fiberboard processing, in particular to a wood chip screening machine for medium density fiberboard processing. Background Art
[0002] Fiberboard, also known as density board, is a man-made board made of wood fiber or other plant fiber as raw materials, with urea-formaldehyde resin or other suitable adhesives applied. Adhesives and (or) additives can be applied during the manufacturing process. Fiberboard has the advantages of uniform material, small vertical and horizontal strength difference, and not easy to crack, and has a wide range of uses. When using a screening machine to process wood chips for density fiberboard, because the processed wood chips of the density fiberboard that need to be screened not only contain wood chips of different specifications, but also contain a lot of wood chip residues of medium density fiberboard, a screening machine is needed to screen the specifications of the processed wood chips of density fiberboard.
[0003] The original screening machine was less effective in catching the wood chip residues of the MDF, causing the wood chip residues of the MDF to fall on the outside of the screening machine, contaminating the processing area of the screening machine with wood chips. At the same time, manual operation was required to clear the wood chips, greatly reducing the practicality of the screening machine.
[0004] CN218078967U A medium density fiberboard processing wood chip screening machine is installed with a double-headed motor to drive the eccentric block to rotate eccentrically. The eccentric block will drive the double-headed motor and the bracket to vibrate repeatedly up and down, front and back, etc. The vibration of the bracket also realizes the vibration screening of the flat plate structure. For the screening of medium density fiberboard processing wood chips, the installed tray will catch the wood chip residues of the medium density fiberboard at the bottom to prevent the wood chip residues of the medium density fiberboard from falling on the outside of the screening machine, thereby solving the above-mentioned technical problems. However, the device cannot clean the screen plate. In the process of screening the wood chips, the wood chips may be stuck in the screen holes of the screen plate, affecting the subsequent screening effect; therefore, it does not meet the existing needs. In this regard, we propose a medium density fiberboard processing wood chip screening machine. Utility Model Content
[0005] The purpose of the utility model is to provide a wood chip screening machine for processing medium density fiberboard, so as to solve the problems proposed in the above background technology that the device cannot clean the screen plate, and in the process of screening the wood chips, the wood chips may be stuck in the screen holes of the screen plate, affecting the subsequent screening effect, and the like.
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a wood chip screening machine for processing medium-density fiberboard, comprising a box body and a motor A, the front end surface of the box body is rotatably connected to a box door through a hinge, the bottom surface of the box body is provided with a collecting box, the upper and lower sides of the inner wall of the box body are provided with strip grooves, the inner side of the strip groove is provided with a threaded rod, the outer surface of the threaded rod is sleeved with a threaded plate, the opposite side of the outer surface of each two threaded plates is fixedly connected with a screen plate, the front and rear sides of the inner wall of the screen plate are provided with grooves, and the inside of the grooves A screw rod is provided, and a threaded block is sleeved on the outer surface of the screw rod, and a scraper is fixedly connected to the opposite side of the outer surfaces of the two threaded blocks, a shell is installed at the rear of the box body, and a through groove is provided on the front end surface of the shell, and transverse grooves are provided on the upper and lower sides of the inner wall of the through groove, electric push rods A are installed on both sides of the upper end surface of the shell, and support plates are installed on both sides of the middle of the inner wall of the through groove, and an electric push rod B is installed on the upper end surface of the support plate, and a lifting plate is installed on the lower end surface of the electric push rod A, and a plurality of pressure blocks are provided on the lower end surface of the lifting plate.
[0007] Preferably, a square groove is provided on the rear end surface of the box body, the through groove is connected to the square groove, and the transverse groove is connected to the strip groove.
[0008] Preferably, a feed hopper is installed on one side of the upper end surface of the box body, and the lower end surface of the feed hopper extends to the top of the sieve plate. The upper end surface of the sieve plate is penetrated by a plurality of sieve slots, and the sieve slots of the two sieve plates are different in size, and the sieve slots of the upper sieve plate are larger than those of the lower sieve plate.
[0009] Preferably, the lifting plate and the pressure block are fixedly connected via a support rod, the size of the upper pressure block is larger than that of the lower pressure block, and the upper pressure block is adapted to the sieve groove of the upper sieve plate, and the lower pressure block is adapted to the sieve groove of the lower sieve plate.
[0010] Preferably, a motor cavity is provided in front of the groove, a motor B is installed on the inner wall of the motor cavity, the output end of the motor B is fixedly connected with a rotating shaft, the rear end face of the rotating shaft is fixedly connected to the front end face of the screw rod, and the rear end face of the screw rod is rotatably connected to the inner wall of the groove through a bearing.
[0011] Preferably, a pull plate is installed on the front end surface of the collection box, slide plates are installed on both sides of the lower end surface of the collection box, slide grooves are provided on both sides of the bottom surface of the inner wall of the box body, and the slide plates are inserted into the inner sides of the slide grooves, and a collection groove is provided on the upper end surface of the collection box.
[0012] Preferably, the output end of the motor A is fixedly connected with a short shaft, the front end face of the short shaft is fixedly connected to the rear end face of the threaded rod, and the front end face of the threaded rod is rotatably connected to the inner wall of the strip groove via a bearing.
[0013] Compared with the prior art, the beneficial effects of the utility model are:
[0014] 1. The utility model is provided with strip grooves, threaded plates, threaded rods, transverse grooves and motor A. After the sieve plate has been used for a period of time, there may be blockage in the sieve groove, which needs to be dredged. The switch of motor A is turned on, and motor A drives the rotating shaft to rotate, thereby driving the threaded rod to rotate. The threaded plate moves backward on the outer surface of the threaded rod, driving the sieve plate to move backward, and the sieve plate moves to the inner side of the through groove. The switch of motor A is turned off, and electric push rods A and electric push rods B are provided. By turning on the switches of electric push rods A and electric push rods B, electric push rods A and electric push rods B can drive the lifting plate to move downward, drive the pressure block to move downward, and the pressure block can dredge the sieve groove of the sieve plate. After dredging is completed, the sieve plate can be driven back into the box by controlling motor A to work in reverse. The utility model can dredge the sieve plate to prevent the sieve groove on the sieve plate from being blocked, thereby ensuring the subsequent screening effect of fiberboard wood chips. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0016] Figure 2 It is a main cross-sectional view of the utility model as a whole;
[0017] Figure 3 It is a top sectional view of the utility model as a whole;
[0018] Figure 4 It is a main sectional view of the shell of the utility model.
[0019] In the figure: 1. Box body; 2. Shell; 3. Motor A; 4. Feed hopper; 5. Collecting box; 6. Strip groove; 7. Threaded plate; 8. Threaded rod; 9. Screen plate; 10. Horizontal groove; 11. Lifting plate; 12. Through groove; 13. Screw rod; 14. Groove; 15. Threaded block; 16. Scraper; 17. Electric push rod A; 18. Pressure block; 19. Electric push rod B; 20. Support plate. DETAILED DESCRIPTION
[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely 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 of the embodiments.
[0021] The motor A3 (model YS7134), the electric push rod A17 (model LBP40), the electric push rod B18 (model ANT-35) and the motor B (model YS7134) mentioned in the present invention can all be purchased from the market or obtained through private customization.
[0022] See also Figures 1 to 4 The utility model provides an embodiment: a wood chip screening machine for processing medium density fiberboard, comprising a box body 1 and a motor A3, the front end surface of the box body 1 is rotatably connected with a box door through a hinge, the bottom surface of the box body 1 is provided with a collecting box 5, the upper and lower sides of the inner wall of the box body 1 are provided with strip grooves 6, the inner side of the strip groove 6 is provided with a threaded rod 8, the outer surface of the threaded rod 8 is sleeved with a threaded plate 7, the outer surface of each two threaded plates 7 is fixedly connected with a sieve plate 9 on the opposite side of the outer surface, the front and rear of the inner wall of the sieve plate 9 are provided with grooves 14, the inside of the groove 14 is provided with a screw rod 13, the screw rod 13 A threaded block 15 is sleeved on the outer surface, and a scraper 16 is fixedly connected to the opposite side of the outer surfaces of the two threaded blocks 15. A shell 2 is installed at the rear of the box body 1, and a through groove 12 is provided on the front end surface of the shell 2. Transverse grooves 10 are provided on the upper and lower sides of the inner wall of the through groove 12. Electric push rods A17 are installed on both sides of the upper end surface of the shell 2, and support plates 20 are installed on both sides of the middle of the inner wall of the through groove 12. An electric push rod B19 is installed on the upper end surface of the support plate 20, and a lifting plate 11 is installed on the lower end surface of the electric push rod A17. A plurality of pressing blocks 18 are provided on the lower end surface of the lifting plate 11.
[0023] A square groove is provided on the rear end surface of the box body 1 , the through groove 12 is connected through the square groove, and the transverse groove 10 is connected through the strip groove 6 .
[0024] By adopting the above technical solution, the sieve plate 9 can enter the inner side of the through groove 12 .
[0025] A feed hopper 4 is installed on one side of the upper end surface of the box body 1, and the lower end surface of the feed hopper 4 extends to the top of the sieve plate 9. The upper end surface of the sieve plate 9 is penetrated by a plurality of sieve slots, and the sieve slots of the two sieve plates 9 are of different sizes, and the sieve slots of the upper sieve plate 9 are larger than those of the lower sieve plate 9.
[0026] By adopting the above technical scheme, the added wood chips can fall onto the upper sieve plate 9, and the upper sieve plate 9 will first screen out the slightly larger wood chips of the medium density fiberboard, and the slightly smaller wood chips of the medium density fiberboard will leak through the sieve grooves of the upper sieve plate 9. A part of the leaked slightly smaller wood chips of the medium density fiberboard will be screened and fall onto the lower sieve plate 9, and the remaining smallest part of the wood chips of the medium density fiberboard will leak through the sieve grooves of the lower sieve plate 9.
[0027] The lifting plate 11 is fixedly connected to the pressing block 18 through a supporting rod. The size of the upper pressing block 18 is larger than that of the lower pressing block 18. The upper pressing block 18 is adapted to the sieve groove of the upper sieve plate 9, and the lower pressing block 18 is adapted to the sieve groove of the lower sieve plate 9.
[0028] By adopting the above technical solution, the stability of the connection between the pressing block 18 and the lifting plate 11 is improved, and the pressing block 18 can dredge the screen slot.
[0029] A motor cavity is provided in front of the groove 14, and a motor B is installed on the inner wall of the motor cavity. A rotating shaft is fixedly connected to the output end of the motor B, and the rear end face of the rotating shaft is fixedly connected to the front end face of the screw rod 13. The rear end face of the screw rod 13 is rotatably connected to the inner wall of the groove 14 through a bearing.
[0030] By adopting the above technical solution, the motor B can drive the rotating shaft to rotate, thereby driving the screw rod 13 to rotate, thereby improving the stability of the rotation of the screw rod 13.
[0031] A pull plate is installed on the front end face of the collection box 5, and slide plates are installed on both sides of the lower end face of the collection box 5. Slide grooves are set on both sides of the bottom surface of the inner wall of the box body 1, and the slide plates are stuck in the inner side of the slide grooves. A collection groove is set on the upper end face of the collection box 5.
[0032] By adopting the above technical solution, the wood chip residues are collected in the collecting groove of the collecting box 5, and the collecting box 5 can be pulled forward by the pulling plate.
[0033] The output end of the motor A3 is fixedly connected with a short shaft, the front end face of the short shaft is fixedly connected with the rear end face of the threaded rod 8, and the front end face of the threaded rod 8 is rotatably connected with the inner wall of the strip groove 6 through a bearing.
[0034] By adopting the above technical solution, the motor A3 can drive the short shaft to rotate, thereby driving the threaded rod 8 to rotate, thereby improving the stability of the rotation of the threaded rod 8.
[0035] When the medium-density limit board processing wood chip screening machine is in use, the power is turned on, the wood chips to be screened are added into the box body 1 through the feed hopper 4, the switch of the motor B is turned on, and the motor B drives the rotating shaft to rotate, thereby driving the screw rod 13 to rotate, driving the threaded block 15 to move backward on the outer surface of the screw rod 13, and driving the scraper 16 to scrape the wood chips on the screen plate 9. The upper screen plate 9 will first screen out the slightly larger wood chips of the medium-density fiberboard, and the slightly smaller wood chips of the medium-density fiberboard will leak from the screening slot of the upper screen plate 9. A part of the slightly smaller wood chips of the medium-density fiberboard that have been leaked will be screened and fall on the lower screen plate 9, and the remaining smallest part of the wood chips of the medium-density fiberboard will leak from the screening slot of the lower screen plate 9. The wood chip residues are collected in the collecting slot of the collecting box 5. After the screen plate 9 has been used for a period of time, there may be blockage in its screening slot, and it is necessary to clean it. To dredge it, turn on the switch of motor A3, and the motor A3 drives the shaft to rotate, thereby driving the threaded rod 8 to rotate, and the threaded plate 7 moves backward on the outer surface of the threaded rod 8, driving the sieve plate 9 to move backward, and the sieve plate 9 moves to the inner side of the through groove 12, and turn off the switch of motor A3. By providing electric push rods A17 and electric push rods B19, by turning on the switches of electric push rods A17 and electric push rods B19, the electric push rods A17 and electric push rods B19 can drive the lifting plate 11 to move downward, and drive the pressing block 18 to move downward, and the pressing block 18 can dredge the sieve slot of the sieve plate 9. After dredging is completed, the sieve plate 9 can be driven back into the box body 1 by controlling the motor A3 to work in the reverse direction. The utility model can dredge the sieve plate 9, prevent the sieve slot on the sieve plate 9 from being blocked, and ensure the subsequent screening effect of the fiberboard wood chips.
[0036] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.
Claims
1. A wood chip screening machine for processing medium density fiberboard, comprising a box body (1) and a motor A (3), wherein the front end surface of the box body (1) is rotatably connected to a box door via a hinge, and characterized in that: The bottom surface of the box body (1) is provided with a collecting box (5), and strip grooves (6) are provided on the upper and lower sides of the inner wall of the box body (1). The inner side of the strip groove (6) is provided with a threaded rod (8), and the outer surface of the threaded rod (8) is sleeved with a threaded plate (7). The opposite sides of the outer surfaces of each two threaded plates (7) are fixedly connected with a sieve plate (9). The inner wall of the sieve plate (9) is provided with grooves (14) at the front and rear, and a screw rod (13) is provided inside the groove (14). The outer surface of the screw rod (13) is sleeved with a threaded block (15), and the opposite sides of the outer surfaces of the two threaded blocks (15) are fixedly connected. A scraper (16) is fixedly connected to the box body (1), a shell (2) is installed at the rear of the box body (1), a through groove (12) is provided on the front end surface of the shell (2), and transverse grooves (10) are provided on the upper and lower sides of the inner wall of the through groove (12), electric push rods A (17) are installed on both sides of the upper end surface of the shell (2), support plates (20) are installed on both sides of the middle of the inner wall of the through groove (12), an electric push rod B (19) is installed on the upper end surface of the support plate (20), a lifting plate (11) is installed on the lower end surface of the electric push rod A (17), and a plurality of pressing blocks (18) are provided on the lower end surface of the lifting plate (11).
2. A wood chip screening machine for medium density fiberboard processing according to claim 1, characterized in that: The rear end surface of the box body (1) is provided with a square groove, the through groove (12) is connected through the square groove, and the transverse groove (10) is connected through the strip groove (6).
3. The wood chip screening machine for medium density fiberboard processing according to claim 1, characterized in that: A feed hopper (4) is installed on one side of the upper end surface of the box body (1), and the lower end surface of the feed hopper (4) extends to the top of the sieve plate (9). The upper end surface of the sieve plate (9) is penetrated by a plurality of sieve slots, and the sieve slots of the two sieve plates (9) are of different sizes, and the sieve slots of the upper sieve plate (9) are larger than the sieve slots of the lower sieve plate (9).
4. A wood chip screening machine for medium density fiberboard processing according to claim 3, characterized in that: The lifting plate (11) and the pressing block (18) are fixedly connected via a support rod, the size of the upper pressing block (18) is larger than the size of the lower pressing block (18), and the upper pressing block (18) is adapted to the sieve groove of the upper sieve plate (9), while the lower pressing block (18) is adapted to the sieve groove of the lower sieve plate (9).
5. The wood chip screening machine for medium density fiberboard processing according to claim 1, characterized in that: A motor cavity is arranged in front of the groove (14), and a motor B is installed on the inner wall of the motor cavity. The output end of the motor B is fixedly connected to a rotating shaft, and the rear end face of the rotating shaft is fixedly connected to the front end face of the screw rod (13), and the rear end face of the screw rod (13) is rotatably connected to the inner wall of the groove (14) via a bearing.
6. The wood chip screening machine for medium density fiberboard processing according to claim 1, characterized in that: A pull plate is installed on the front end surface of the collection box (5), slide plates are installed on both sides of the lower end surface of the collection box (5), slide grooves are provided on both sides of the bottom surface of the inner wall of the box body (1), and the slide plates are inserted into the inner sides of the slide grooves, and a collection groove is provided on the upper end surface of the collection box (5).
7. The wood chip screening machine for medium density fiberboard processing according to claim 1, characterized in that: The output end of the motor A (3) is fixedly connected to a short shaft, the front end face of the short shaft is fixedly connected to the rear end face of the threaded rod (8), and the front end face of the threaded rod (8) is rotatably connected to the inner wall of the strip groove (6) via a bearing.