CN113560987B

CN113560987B - Plank trimmer

Info

Publication number: CN113560987B
Application number: CN202110826095.2A
Authority: CN
Inventors: 张爱军
Original assignee: Anhui Coolbaby Science & Technology Development Corp
Current assignee: Anhui Coolbaby Science & Technology Development Corp
Priority date: 2021-07-21
Filing date: 2021-07-21
Publication date: 2022-04-29
Anticipated expiration: 2041-07-21
Also published as: CN113560987A

Abstract

The invention discloses a board trimmer, which relates to the technical field of board processing and comprises a first workbench, a second workbench, a top plate and a hinge, wherein the first workbench and the second workbench are fixed through spot welding, and the top plates are arranged at the tops of the first workbench and the second workbench; according to the wood board trimming machine, the first baffle and the second baffle are adjusted, so that the wood board is regularly placed on the base plate, the wood board is conveniently pushed to the first grinding cutter by the board pushing sleeve for trimming, the situation that the first grinding cutter is blocked by the clamping of the wood board when the wood board is trimmed due to deviation in the placement of the wood board, the follow-up movement trimming of the wood board is influenced is avoided, the wood is neatly stacked by the discharging fixing plate, the wood board does not need to be manually placed into the wood board trimming machine one by one, and the working efficiency of the wood board trimming machine is greatly improved.

Description

Plank trimmer

Technical Field

The invention relates to the technical field of board processing, in particular to a board trimmer.

Background

In daily life of people, wood products are visible everywhere, burrs often appear on a cutting surface after wood is cut, workers take the wood to easily cut the wood and influence the attractiveness of the wood board, so that the cut wood needs to be trimmed;

in the prior art, the wood board trimming machine needs manpower to push the wood board in the process of trimming the wood board, so that the wood board is continuously adjusted in position and translated for trimming, the working strength is high, the speed and the quality of wood board trimming are influenced, and the traditional wood board trimming machine often has the phenomenon that the wood board is contacted with a blade to break away when trimming is carried out, so that the overall safety of the wood board trimming machine is influenced;

to this end, we propose a plank trimmer.

Disclosure of Invention

The invention aims to provide a wood board edge trimmer, which solves the problems that the wood board edge trimmer in the background technology has low working efficiency and the wood board contacts with a blade to be broken when the wood board edge trimmer works.

In order to achieve the purpose, the invention provides the following technical scheme:

a wood board trimming machine comprises a first workbench, a second workbench, a top plate and a hinge, wherein the first workbench and the second workbench are fixed through spot welding, the top plate is arranged at the tops of the first workbench and the second workbench, a first fixed block is symmetrically fixed at the top of the first workbench through spot welding, a first baffle is slidably connected to the opposite side of the first fixed block, an adjusting bolt is symmetrically arranged on one side of the first fixed block, one end of the adjusting bolt penetrates through the first fixed block and is fixed with one side of the first baffle, a discharging fixed plate is fixed on one side of the first baffle through spot welding, the bottom of the discharging fixed plate is slidably connected with the top of the first workbench, a placing block is fixed on the other side of the first baffle through spot welding, a first channel is symmetrically arranged at the top of the first workbench and on the opposite side of the first baffle, a base plate is arranged at the top of the first workbench and on the opposite side of the first channel, and a weighing point is arranged on the base plate;

a second fixed block is fixed at the top of the second workbench through spot welding, the top of the second workbench is connected with a second baffle in a sliding manner, the second fixed block and the second baffle are fixed through an adjusting bolt, a clamping block is fixed at the top of the second workbench through spot welding, a first electric push rod is arranged in the clamping block, a push plate is fixed at one end of the first electric push rod through spot welding, and the push plate is connected with the top of the second workbench in a sliding manner;

the bottom of the first workbench is provided with a pushing device, the pushing device comprises a second electric push rod, a cross rod, a vertical rod, a shell, a push plate sleeve, a loop bar, a second spring, a protective cover, an adjusting cover, a jacket and an adjusting knob, the bottom of the first workbench is fixed with the second electric push rod through spot welding, one end of the second electric push rod is provided with the cross rod, the two ends of the cross rod are symmetrically provided with the vertical rod, one end of the cross rod is fixed with the shell through spot welding, the loop bar is fixed in the shell through spot welding, the loop bar is sleeved with the push plate sleeve, the loop bar is sleeved with the second spring, one end of the second spring is fixed with the shell, the other end of the second spring is fixed with the push plate sleeve, the bottom of the vertical rod is provided with the protective cover, the bottom of the vertical rod is in sliding connection with the protective cover, the cross rod is in sliding connection with one side of the protective cover, the adjusting cover is mounted on the second electric push rod, clamping sleeves are mounted on two sides of the second electric push rod positioned in the adjusting cover, an adjusting knob is mounted on the adjusting cover, one end of the adjusting knob penetrates through one side of the adjusting cover and is fixed with the clamping sleeves, and the adjusting knob is movably connected with the adjusting cover;

a push plate sleeve in the pushing device is positioned in the first channel, the push plate sleeve is in sliding connection with the inner walls of the two sides of the first channel, and the horizontal height of the push plate sleeve is greater than the thickness of the first workbench;

the thickness of the first workbench is larger than that of the second workbench, the length of the first channel is larger than that of the base plate, the loop bar is made of rubber, and the adjusting cover is fixed with the bottom of the first workbench through spot welding;

the automatic sharpening device comprises a first workbench, a control box, a placing block, a limiting plate, a third sharpening plate and a second sharpening plate, wherein the control box is installed on one side of the first workbench, the first sharpening plate is installed in the placing block, the limiting plate is connected to the top of a second baffle through a hinge, the third sharpening plate is installed on one side of the second baffle and is located at the bottom of the limiting plate, and the second sharpening plate is installed on one side of the first workbench and is located on the same horizontal line with the third sharpening plate.

Further, spacing gyro wheel device is installed to the bottom symmetry of roof, spacing gyro wheel device includes dead lever, second passageway, connecting rod, fixture block, connecting block, spread groove, first spring and pulley, the second passageway has been seted up on the dead lever, and is located the second passageway and installs the connecting rod, be fixed with the fixture block through spot welding on the connecting rod, sliding connection has the connecting block in the second passageway, and has seted up the spread groove in the connecting block, the one end through connection piece of connecting rod and spread groove sliding connection, the opposite side cover that just is located fixture block and connecting block on the connecting rod is equipped with first spring, there is the pulley both sides of connecting block through bearing activity symmetric connection.

Furthermore, the number of the limiting roller wheel devices is four, and pulleys in the limiting roller wheel devices are abutted to the top of the base plate.

The working method of the wood board edge trimmer specifically comprises the following steps:

the method comprises the following steps: pre-adjusting the placement of the wood board;

firstly, rotating an adjusting bolt, wherein the adjusting bolt drives a first baffle, a placing block and a placing fixing plate to enable a wood plate to be just positioned on the opposite surfaces of the two placing fixing plates, and the placing fixing plates play roles in fixing the bottom wood plate and limiting the top wood plate;

then, a second baffle is adjusted by a second fixed block on a second workbench, so that the width of one side of the second baffle, which is the same as that of the first workbench, is the same as that of the wood board, and the other two sides of the wood board are conveniently pushed and trimmed;

step two: adjusting the pushing device to push the wood board;

the adjusting knob is rotated, the jacket drives the second electric push rod to move up and down at the bottom of the first workbench, the second electric push rod drives the cross rod and the vertical rod in the protective cover to move up and down, so that the push plate sleeve on the vertical rod moves up and down in the first channel, the position where the height of the top of the first workbench is the same as the thickness of one wood board is found out by the push plate sleeve, and the bottom of the push plate sleeve drives the bottom one wood board to move;

step three: starting a power supply to push and trim the wood board;

opening a main switch in the control box, and when the push plate sleeve pushes the wood board to move to the placing block, trimming the two sides of the wood board by a first knife on the placing block;

when the plank falls onto the second workbench, the first electric push rod pushes the push plate, the push plate pushes the plank to move on the second workbench, the second knife and the third knife are sharpened when the plank is moved, the other two sides of the plank are ground, the plank is comprehensively ground and trimmed, the operation is repeated, and workers pay attention to observe the plank in the feeding fixing plate and feed in time.

Compared with the prior art, the invention has the beneficial effects that:

the wood board trimming machine has the advantages that the first baffle and the second baffle are adjusted, so that the wood board is placed on the base plate in a regular mode, the wood board is conveniently pushed to the first knife sharpening position by the board pushing sleeve for trimming, the situation that due to deviation of the wood board placement, the first knife sharpening is blocked with the wood board in a clamping mode to affect the follow-up movement trimming of the wood board during the wood board trimming is avoided, the discharging fixing plate is used for neatly stacking the wood boards, the wood boards are not required to be placed into the wood board trimming machine one by one manually, and the working efficiency of the wood board trimming machine is greatly improved;

still push away the plank that both sides edging ended through the push pedal cover and carry out the edging of other both sides on pushing away the second workstation and handle, make the edging effect of plank edging machine more comprehensive, carry out comprehensive deburring on the mill knife of other both sides is sent the plank to through second electric putter at last, whole regulation and control through the control box, degree of automation is higher, contrast traditional staff's hand work of carrying out the deburring of plank, the work efficiency of plank edging machine is higher, the setting of spacing roller device and limiting plate simultaneously, make the plank more steady move on first workstation and second workstation, the whole security of plank edging machine is higher.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic top view of the overall structure of the first and second stages according to the present invention;

FIG. 3 is a schematic side view of the first and second stages according to the present invention;

FIG. 4 is an enlarged view of the structure at A of the present invention;

FIG. 5 is a schematic bottom view of the first worktable of the present invention;

FIG. 6 is a schematic structural view of a limiting roller device according to the present invention;

FIG. 7 is a schematic view of the protective cover of the present invention;

fig. 8 is a schematic cross-sectional view of the adjusting cover and the second electric push rod according to the present invention.

In the figure: 1. a first table; 2. a second table; 3. a control box; 4. a first fixed block; 5. a first baffle plate; 6. a material placing fixing plate; 7. placing the blocks; 8. a first channel; 9. a base plate; 10. weighing key points; 11. a top plate; 12. a limiting roller device; 1201. fixing the rod; 1202. a second channel; 1203. a connecting rod; 1204. a clamping block; 1205. connecting blocks; 1206. connecting grooves; 1207. a first spring; 1208. a pulley; 13. a second fixed block; 14. a second baffle; 15. adjusting the bolt; 16. a clamping block; 17. a first electric push rod; 18. pushing the plate; 19. first sharpening; 20. second sharpening the knife; 21. a limiting plate; 22. thirdly, sharpening the cutter; 23. a hinge; 24. a pushing device; 2401. a second electric push rod; 2402. a cross bar; 2403. a vertical rod; 2404. a housing; 2405. a push plate sleeve; 2406. a loop bar; 2407. a second spring; 2408. a protective cover; 2409. an adjustment cover; 2410. a jacket; 2411. and adjusting a knob.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-8, the present invention provides a technical solution:

a plank trimmer, including the first work level 1, the second work level 2, roof 11 and hinge 23, the first work level 1 is fixed with the second work level 2 through spot welding, the thickness of the first work level 1 is greater than the second work level 2, make the plank after both sides trimming fall into the second work level 2, the second baffle 14 is butted with the included angle of the first work level 1 and second work level 2, does not need to additionally support the tight plate to fix one side of the plank, reduce the whole fabrication cost of the trimming device;

the top plate 11 is arranged on the top of the first workbench 1 and the second workbench 2, the limiting roller devices 12 are symmetrically arranged on the bottom of the top plate 11, the number of the limiting roller devices 12 is four, pulleys 1208 in the limiting roller devices 12 are abutted against the top of the backing plate 9, each limiting roller device 12 comprises a fixed rod 1201, a second channel 1202, a connecting rod 1203, a fixture block 1204, a connecting block 1205, a connecting groove 1206, a first spring 1207 and pulleys 1208, the second channel 1202 is formed in the fixed rod 1201, the connecting rod 1203 is arranged in the second channel 1202, the fixture block 1204 is fixed on the connecting rod 1203 by spot welding, the connecting block 1205 is slidably connected in the second channel 1202, the connecting groove 1206 is formed in the connecting block 1205, one end of the connecting rod 1203 penetrates through the connecting block 1205 and is slidably connected with the connecting groove 1206, the first spring 1207 is sleeved on the connecting rod 1203 and is positioned on the side, opposite to the fixture block 1204 and the connecting block 1205, the two sides of the connecting block 1205 are movably and symmetrically connected with pulleys 1208 through bearings, when the pulleys 1208 are in contact with the wood board, the wood board is in contact with the first mill knife 19, due to the existence of friction, the phenomenon that the wood board is in contact with the first mill knife 19 and bounces off is possibly caused, the limiting roller device 12 is arranged, and the pulleys 1208 play a role in compressing, fixing and moving the wood board, so that the wood board moves on the backing plate 9 more stably, and the situation that the wood board bounces to block other wood boards for trimming when the first mill knife 19 polishes and trims the wood board is avoided;

the top of the first workbench 1 is symmetrically fixed with a first fixed block 4 through spot welding, the opposite side of the first fixed block 4 is slidably connected with a first baffle plate 5, one side of the first fixed block 4 is symmetrically provided with adjusting bolts 15, the adjusting bolts 15 are used for adjusting the first baffle plate 5 and a second baffle plate 14 so as to be suitable for wood plate pieces with different sizes, one end of each adjusting bolt 15 penetrates through the first fixed block 4 and is fixed with one side of the first baffle plate 5, one side of the first baffle plate 5 is fixed with a material placing fixed plate 6 through spot welding, the material placing fixed plate 6 is used for stacking wood plate pieces, so that a single wood plate is not required to be placed, the wood plate at the bottom is pushed to move, a forward friction force is given to the wood plate above the bottom, the wood plate stacking is more stable, the bottom of the material placing fixed plate 6 is slidably connected with the top of the first workbench 1, the other side of the first baffle plate 5 is fixed with a placing block 7 through spot welding, a first knife 19 is arranged in the placing block 7, the knife edge of the first knife 19 extends out of one side of the placing block 7, so that the wood plate can be trimmed more conveniently, meanwhile, the bottom of the first knife 19 is hollowed out to facilitate the discharge of trimming residues, first passages 8 are symmetrically formed in the top of the first workbench 1 and on the opposite side of the first baffle 5, a backing plate 9 is arranged on the top of the first workbench 1 and on the opposite side of the first passage 8, a weighing point 10 is arranged on the backing plate 9, the placing block 7 of the first baffle 5 and the second baffle 14 is higher than the wood plate, a weighing point 10 arranged on the backing plate 9 is contacted with a switch of the second electric push rod 2401, when the wood plate is placed on the backing plate 9, the weighing point 10 is pressed by the wood plate to enable the weighing point 10 to sink, the second electric push rod 2401 is triggered to work, and similarly, a sensor is also arranged in a clamping block 16 arranged on the second workbench 2, when the wood board on the first workbench 1 falls onto the second workbench 2, the first electric push rod 17 is triggered to work, the sensor in the clamping block 16 is positioned at one side of the second baffle 14, and when the wood board is not completely placed onto the second workbench 2, the first electric push rod 17 works, so that the phenomenon that the wood board is jammed in the operation platform is caused;

a second fixing block 13 is fixed to the top of the second workbench 2 through spot welding, the top of the second workbench 2 is connected with a second baffle 14 in a sliding mode, the second fixing block 13 and the second baffle 14 are fixed through adjusting bolts 15, a clamping block 16 is fixed to the top of the second workbench 2 through spot welding, a first electric push rod 17 is arranged in the clamping block 16, one end of the first electric push rod 17 is fixed with a push plate 18 through spot welding, the push plate 18 is connected with the top of the second workbench 2 in a sliding mode, the top of the second baffle 14 is connected with a limiting plate 21 through a hinge 23, the limiting plate 21 also prevents the phenomenon that a wood board bounces off, a third knife 22 is arranged on one side of the second baffle 14 and at the bottom of the limiting plate 21, and a second knife 20 is arranged on one side of the first workbench 1 and on the same horizontal line with the third knife 22;

the bottom of the first workbench 1 is provided with a pushing device 24, the pushing device 24 comprises a second electric push rod 2401, a cross rod 2402, a vertical rod 2403, a shell 2404, a push plate sleeve 2405, a loop bar 2406, a second spring 2407, a protective cover 2408, an adjusting cover 2409, a jacket 2410 and an adjusting knob 2411, the bottom of the first workbench 1 is fixed with the second electric push rod 2401 through spot welding, one end of the second electric push rod 2401 is provided with the cross rod 2402, two ends of the cross rod 2402 are symmetrically provided with the vertical rod 2403, one end of the vertical rod 2403 is fixed with the shell 2404 through spot welding, the loop bar 2406 is fixed in the shell 2404 through spot welding, the loop bar 2406 is made of rubber, the rubber material is soft, the loop bar 2406 is sleeved with the push plate sleeve 2405, the height of the push plate sleeve 2405 is larger than the thickness of the first workbench 1, the push plate sleeve 2405 in the pushing device 24 is arranged in the first channel 2408, and the inner walls of the push plate sleeve 2405 and the first channel 8 are connected in a sliding manner, when the push plate sleeve 2405 pushes the wood board to move from the first workbench 1 to the second workbench 2, the push plate sleeve 2405 is contacted with the stacked wood board in a return path, the push plate sleeve 2405 is contacted with the wood board due to a second spring 2407 at the bottom of the push plate sleeve 2405, the wood board extrudes the push plate sleeve 2405 to shrink, the length of the first channel 8 is greater than that of the backing plate 9, and after the wood board is completely scratched, the push plate sleeve 2405 bounces again to start the next work;

a second spring 2407 is sleeved on the loop bar 2406, one end of the second spring 2407 is fixed with the shell 2404, the other end of the second spring 2407 is fixed with the push plate sleeve 2405, a protective cover 2408 is installed at the bottom of the vertical rod 2403, the bottom of the vertical rod 2403 is in sliding connection with the protective cover 2408, the cross bar 2402 is in sliding connection with one side of the protective cover 2408, an adjusting cover 2409 is installed on the second electric push rod 2401, the adjusting cover 2409 is fixed with the bottom of the first workbench 1 through spot welding, the vertical rod 2403 is supported, two sides of the second electric push rod 2401 in the adjusting cover 2409 are provided with a jacket 2410, the adjusting cover 2409 is provided with an adjusting knob 2411, one end of the adjusting knob 2411 penetrates through one side of the adjusting cover 2409 and is fixed with the jacket 2410, the adjusting knob 2411 is movably connected with the adjusting cover 2409, the descending height of the push plate sleeve 2405 is adjusted through the adjusting knob 2411, and the wood boards with different thicknesses can be conveniently trimmed by the trimmer, the practicability of the edge trimmer is higher;

and a control box 3 is arranged on one side of the first workbench 1 and used for adjusting the whole electric part of the wood board edge trimmer to work and stop, so that the charging and the overhauling of workers are facilitated.

The working process of the invention is as follows:

when the device is used, a bending part of the discharging fixing plate 6 where a wood board to be edged is placed in advance is clamped and compared, the adjusting bolt 15 is rotated at first, the adjusting bolt 15 drives the first baffle 5, the placing block 7 and the discharging fixing plate 6, the wood board is clamped and fixed, the wood board is abutted against the two discharging fixing plates 6, the second baffle 14 is adjusted on the second fixing block 13 on the second workbench 2, the width of one side of the second baffle 14 and the width of the wood board are the same, and the limiting plate 21 on the second baffle 14 is unfolded;

after the wood boards and the material placing fixing plate 6 are well adjusted, at the moment, the adjusting knob 2411 is rotated, the jacket 2410 drives the second electric push rod 2401 to move up and down at the bottom of the first workbench 1, the second electric push rod 2401 drives the cross rod 2402 and the vertical rod 2403 positioned in the protective cover 2408 to move up and down, so that the push plate sleeve 2405 on the vertical rod 2403 moves up and down in the first channel 8, the position where the height of the top of the first workbench 1, which is extended by the push plate sleeve 2405, is the same as the thickness of one wood board is found, and the stacked wood board group is placed on the material placing fixing plate 6;

opening a main switch in the control box 3, triggering a second electric push rod 2401 to work by a board pressing balance point 10, pushing a cross rod 2402 to move by the second electric push rod 2401, driving a vertical rod 2403 to move in a protective cover 2408, pushing a push plate sleeve 2405 on the vertical rod 2403 to push a board to move on a backing plate 9, when one end of the board moves to a pulley 1208, pushing the pulley 1208 to move upwards by the board, driving a connecting block 1205 to move upwards in a second channel 1202, extruding a first spring 1207 by the connecting block 1205, enabling the board to move from the bottom of the pulley 1208 to a second workbench 2, and trimming two sides of the board by a first knife 19 on a placing block 7 when the push plate sleeve 2405 pushes the board to move to the placing block 7;

after the two sides of the wood board are trimmed and fall on the second workbench 2, the first electric push rod 17 pushes the push plate 18, the push plate 18 pushes the wood board to move on the second workbench 2, and when the wood board moves to the second knife grinder 20 and the third knife grinder 22, the other two sides of the wood board are ground to complete the overall grinding and trimming of the wood board.

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

Claims

1. The utility model provides a plank trimmer, includes first workstation (1), second workstation (2), roof (11) and hinge (23), first workstation (1) is fixed mutually through spot welding with second workstation (2), and is located the top of first workstation (1) and second workstation (2) and installs roof (11), its characterized in that: the top of the first workbench (1) is symmetrically fixed with a first fixed block (4) through spot welding, the opposite side of the first fixed block (4) is slidably connected with a first baffle (5), one side of the first fixed block (4) is symmetrically provided with an adjusting bolt (15), one end of the adjusting bolt (15) penetrates through the first fixed block (4) and is fixed with one side of the first baffle (5), one side of the first baffle (5) is fixed with a material placing fixed plate (6) through spot welding, the bottom of the material placing fixed plate (6) is slidably connected with the top of the first workbench (1), the other side of the first baffle (5) is fixed with a placing block (7) through spot welding, the top of the first workbench (1) is symmetrically provided with a first channel (8) on the opposite side of the first baffle (5), a backing plate (9) is arranged at the top of the first workbench (1) and on the opposite side of the first channel (8), a weighing point (10) is arranged on the backing plate (9);

the top of the second workbench (2) is fixed with a second fixing block (13) through spot welding, the top of the second workbench (2) is slidably connected with a second baffle (14), the second fixing block (13) and the second baffle (14) are fixed through an adjusting bolt (15), the top of the second workbench (2) is fixed with a clamping block (16) through spot welding, a first electric push rod (17) is arranged in the clamping block (16), one end of the first electric push rod (17) is fixed with a push plate (18) through spot welding, and the push plate (18) is slidably connected with the top of the second workbench (2);

the bottom of the first workbench (1) is provided with a pushing device (24), the pushing device (24) comprises a second electric push rod (2401), a cross rod (2402), a vertical rod (2403), a shell (2404), a push plate sleeve (2405), a sleeve rod (2406), a second spring (2407), a protective cover (2408), an adjusting cover (2409), a jacket (2410) and an adjusting knob (2411), the bottom of the first workbench (1) is fixed with the second electric push rod (2401) through spot welding, the cross rod (2402) is arranged at one end of the second electric push rod (2401), the vertical rod (2403) is symmetrically arranged at two ends of the cross rod (2402), the shell (2404) is fixed at one end of the vertical rod (2403) through spot welding, the sleeve rod (2406) is fixed in the shell (2404) through spot welding, the push plate sleeve (2405) is arranged on the sleeve rod (2406), and the second spring (2407) is arranged on the sleeve rod (2406), one end of a second spring (2407) is fixed with the shell (2404), the other end of the second spring (2407) is fixed with the push plate sleeve (2405), the bottom of the vertical rod (2403) is provided with the protective cover (2408), the bottom of the vertical rod (2403) is in sliding connection with the protective cover (2408), the cross rod (2402) is in sliding connection with one side of the protective cover (2408), the second electric push rod (2401) is provided with the adjusting cover (2409), two sides of the second electric push rod (2401) in the adjusting cover (2409) are provided with the clamping sleeve (2410), the adjusting knob (2411) is arranged on the adjusting cover (2409), one end of the adjusting knob (2411) penetrates through one side of the adjusting cover (2409) and is fixed with the clamping sleeve (2410), and the adjusting knob (2411) is movably connected with the adjusting cover (2409);

a push plate sleeve (2405) in the pushing device (24) is positioned in the first channel (8), the push plate sleeve (2405) is in sliding connection with the inner walls of the two sides of the first channel (8), and the horizontal height of the push plate sleeve (2405) is larger than the thickness of the first workbench (1);

the thickness of the first workbench (1) is larger than that of the second workbench (2), the length of the first channel (8) is larger than that of the backing plate (9), the loop bar (2406) is made of rubber, and the adjusting cover (2409) is fixed to the bottom of the first workbench (1) through spot welding;

control box (3) are installed to one side of first workstation (1), place and install first whet a knife (19) in piece (7), the top of second baffle (14) is connected with limiting plate (21) through hinge (23), one side of second baffle (14) and the bottom that is located limiting plate (21) are installed the third and are whetted a knife (22), one side of first workstation (1) and with the third whet a knife (22) be located same water flat line and install the second and whet a knife (20).

2. The wood plank trimmer of claim 1, wherein: the bottom of the top plate (11) is symmetrically provided with limiting roller devices (12), each limiting roller device (12) comprises a fixing rod (1201), a second channel (1202), a connecting rod (1203), a clamping block (1204), a connecting block (1205), a connecting groove (1206), a first spring (1207) and a pulley (1208), the second channel (1202) is formed in the fixing rod (1201), the connecting rod (1203) is arranged in the second channel (1202), the clamping block (1204) is fixed on the connecting rod (1203) through spot welding, the connecting block (1205) is connected in the second channel (1202) in a sliding mode, the connecting groove (1206) is formed in the connecting block (1205), one end of the connecting rod (1203) penetrates through the connecting block (1205) and is connected with the connecting groove (1206) in a sliding mode, the first spring (1207) is sleeved on the connecting rod (1203) and on the side, which is located on the side, opposite to the clamping block (1204) and the connecting block (1205), pulleys (1208) are movably and symmetrically connected to the two sides of the connecting block (1205) through bearings.

3. The wood plank trimmer of claim 2, wherein: the number of the limiting roller devices (12) is four, and pulleys (1208) in the limiting roller devices (12) are abutted to the top of the backing plate (9).