CN113043220A - Righting and pulling-out type nail taking device for waste wood boards in building engineering - Google Patents

Abstract

The invention discloses a righting and pulling-out type nail taking device for waste wood boards in constructional engineering, which comprises a bottom plate, wherein a main plate matched with the bottom plate is arranged above the bottom plate, a righting mechanism connected with the main plate is arranged between the main plate and the bottom plate, a nail taking mechanism connected with the main plate is arranged at the top end of the main plate, connecting columns connected with the main plate and the bottom plate are symmetrically arranged between the main plate and the bottom plate and on two sides of the righting mechanism, a through reset spring is arranged on the connecting columns, a baffle plate perpendicular to the top end of the bottom plate is arranged between the connecting columns and the righting mechanism, a plurality of movable trundles distributed uniformly are arranged at the bottom end of the bottom plate, a movable handle fixedly connected with the bottom plate and the side face of. Has the advantages that: the device mechanism is nimble, and is simple, not only can correct the nail of bending, and convenient taking out from the plank has greatly reduced the injury to the plank moreover, also prevents that the improper injury that causes the health of artificial use hammer.

Description

Righting and pulling-out type nail taking device for waste wood boards in building engineering

Technical Field

The invention relates to the field of constructional engineering, in particular to a righting and pulling-out type nail taking device for waste wood boards in constructional engineering.

Background

The building board is also used as a building template in many cases when in use, for example, before concrete is poured into a building pillar, a board is wrapped on the outer layer of the building pillar to prevent the building pillar from leaking out when the concrete is poured, the board and the board are generally fixed through iron nails, the building board can be reused in many cases after the building pillar is used, therefore, the iron nails on the building board need to be taken down, the existing nail taking mode is basically that an iron hammer is manually held, the taken-down iron nails on the board are not completely straight, most of the iron nails are bent in the dismounting process, the bent iron nails need to be corrected firstly and then are knocked down one by one, so that the working efficiency is low when the nails are taken out manually, sometimes, when the wood board is difficult to take out, the board is damaged due to the knocking of the diameter of the board, and the cost is increased, and the hammer easily hits the hand in the process of taking out the nail, thus causing the industrial injury, therefore, the improvement on the prior equipment is needed.

SUMMARY OF THE PATENT FOR INVENTION

Aiming at the problems in the related art, the invention provides a righting and pulling type nail taking device for waste wood boards in building engineering, which aims to overcome the technical problems in the prior related art.

Therefore, the invention adopts the following specific technical scheme:

the utility model provides a right pull-out formula and be used for getting of old and useless plank to bind device, includes the bottom plate, the top of bottom plate is equipped with rather than matched with mainboard, the mainboard with be equipped with between the bottom plate rather than the mechanism of rightting that is connected, the top of mainboard is equipped with rather than the mechanism of getting to bind, the mainboard with between the bottom plate and righting the bilateral symmetry of mechanism and being equipped with rather than the spliced pole that is connected, be equipped with the reset spring that runs through on the spliced pole with righting and being equipped with the perpendicular to between the mechanism the baffle that the bottom plate top set up, the bottom of bottom plate is equipped with a plurality of evenly distributed's movable truckle, the bottom plate with be equipped with fixed connection's activity handle between the side of mainboard.

Further, righting the mechanism including promoting the circle wheel, the inside that promotes the circle wheel is equipped with can pivoted sector disc, sector disc's inside is equipped with the quad slit that runs through, just the center of quad slit with sector disc's center is not in same position, the center of quad slit is in sector disc's below be equipped with in the quad slit and run through main shaft one on the promotion circle wheel, be equipped with the straight-teeth gear rather than being connected on the main shaft one, just the straight-teeth gear is in the quad slit.

Further, be equipped with in the quad slit with straight-teeth gear matched with rack, just the rack is only in one side of straight-teeth gear the both sides of quad slit are equipped with and run through the bar groove of sector disc is two liang be equipped with in the bar groove and can be in wherein rolling spacing axle, the tip of spacing axle is equipped with the fixed disk rather than being connected, a main shaft runs through the fixed disk extends to and is equipped with rather than the motor that is connected on the outside.

Furthermore, a pushing rod fixedly connected with the pushing round wheel is arranged on the circumference of the side edge of the pushing round wheel, an I-shaped block connected with the pushing round wheel is arranged at the end part of the pushing rod far away from the pushing round wheel, T-shaped clamping blocks connected with the I-shaped block are symmetrically arranged on two sides of the I-shaped block, the I-shaped block is embedded in a fixed block connected with the I-shaped block through the T-shaped clamping blocks, and a straightening inclined plate connected with the T-shaped block is arranged at the end part of the T-shaped clamping block extending out of the fixed block.

Furthermore, the nail taking mechanism comprises an L-shaped plate, a kidney-shaped gear is arranged on one side of the L-shaped plate, a second motor connected with the second motor is arranged inside the kidney-shaped gear, a cylindrical gear matched with the second motor is arranged at the gear end of the kidney-shaped gear, a belt pulley connected with the cylindrical gear is arranged on the side face of the cylindrical gear, a transmission belt matched with the belt pulley is arranged on the circumference of the side face of the belt pulley, and a driven plate matched with the transmission belt is arranged at the other end of the transmission belt.

Furthermore, a plurality of lightening holes which are uniformly distributed in a penetrating manner are formed in the driven disc, an L-shaped rod connected between the cylindrical gear and the driven disc is arranged between the cylindrical gear and the driven disc, a penetrating stroke groove is formed in the end portion of the L-shaped rod, a guide block capable of sliding in the stroke groove is arranged in the stroke groove, a connecting rod connected with the guide block is arranged in the direction in which the guide block extends to the L-shaped plate, and a T-shaped fixing block which is penetrated through is arranged on the connecting rod.

Furthermore, the other end of the T-shaped fixing block is fixed on the side face of the L-shaped plate, the other end of the connecting rod is provided with a nail taking barrel connected with the connecting rod, the connecting rod penetrates through the nail taking barrel and extends to the inside, and the end part of the inside of the nail taking barrel, extending to the connecting rod, is provided with a magnetic plate connected with the connecting rod.

Further, get the inside of a nail section of thick bamboo and be in the below symmetry of magnetic force board be equipped with get the elastic rod that a nail section of thick bamboo is connected be equipped with the nail claw of getting rather than being connected on the relative position of elastic rod, just it has the radian to get the nail claw, is equipped with the oblique angle of the slow grow downwards of opening in getting nail department get the bottom of a nail section of thick bamboo be equipped with rather than the clamp plate that is connected, the bilateral symmetry of fixed block is equipped with rather than matched with cylinder, the inside of cylinder is equipped with can be inside flexible

The end part of the telescopic rod is provided with a scraper knife matched with the telescopic rod.

Furthermore, the bottom end of the righting mechanism and the top end of the nail taking mechanism are provided with the same sliding mechanism, the sliding mechanism comprises a first sliding rail, a first sliding block matched with the first sliding rail is arranged on the first sliding rail, the bottom end of the first sliding block is provided with a first square block connected with the first sliding block, a first screw rod penetrating through the first square block to two sides is arranged inside the first square block, a third motor matched with the first screw rod is arranged on one side of the first screw rod, a second sliding block connected with the second square block is arranged on the bottom end of the first square block, a second sliding rail perpendicular to the first sliding rail is arranged on the second sliding block, a second sliding screw rod matched with the second sliding rail is arranged below the second sliding rail, a fourth motor connected with the second screw rod is arranged on one side of the second screw rod, and a guide groove opposite to the righting mechanism is arranged inside the baffle.

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

1. parts such as promotion round wheel, sector disc, straight-teeth gear, rack, spacing axle, motor one, catch bar, I type piece, righting sloping block through setting up can be fine the crooked nail realize and the plank between perpendicular, make the following nail of getting become simple easy more, artificial in-process of breaking straight off with the fingers and thumb with crooked nail in addition causes danger easily, wherein, initial time promote the round wheel with the sector disc the fixed disc can not promote in same centre of a circle department righting the sloping plate and producing the displacement, work as spacing axle when removing, has changed the sector disc with the centre of a circle position of fixed disc is similar to cam mechanism's principle, realizes righting the sloping plate and realizing the correction of crooked nail, better takes out the nail from the plank.

2. Through the kidney type gear that sets up, motor two, cylindrical gear, transmission belt, L type pole, the guide block, the connecting rod, get a nail section of thick bamboo, the magnetic plate, the elastic rod, get the nail claw, parts such as clamp plate can help slowly realize the separation between head of a nail and the plank, when changing to realize the separation between messenger's head of a nail and the plank, it can help taking out the nail to get the nail claw, interact between the two, the magnetic plate also can help better adsorption column head of a nail, make the device more nimble that becomes, furthest's reduction is to the damage of plank, the reuse rate of plank has been improved, can also realize resetting curved nail, it is straightening the nail to have avoided follow-up people.

3. According to the invention, through the arranged sliding mechanism, through the matching among the sliding rail, the sliding block, the screw rod and the motor, the horizontal movement of any position of the nail righting mechanism and the nail fetching mechanism can be realized, so that nails can be righted and fetched in any direction, manual adjustment is not needed, the manual operation time is reduced, and the flexibility of the machine is improved.

Drawings

In order to more clearly illustrate the embodiments of the patent of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the patent of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a side view of an integrated apparatus for righting a pull-out type nail extractor for waste wood boards in construction work according to an embodiment of the present invention;

fig. 2 is an axial view of an overall device of a centralizing and pulling-out type centralizing mechanism in a nail removing device for waste wood boards in construction engineering according to an embodiment of the invention;

FIG. 3 is a side view of a push wheel and other components of a nail extractor for waste wood boards in construction engineering according to an embodiment of the present invention;

FIG. 4 is a side view of a baffle component of a nail extractor for waste wood boards in construction according to an embodiment of the present invention;

FIG. 5 is an axial view of a nail removing mechanism of a nail removing device for waste wood boards in construction engineering according to an embodiment of the present invention;

FIG. 6 is a side view of a nail cartridge and the like in a nail extractor for waste wood boards in construction work according to an embodiment of the present invention;

fig. 7 is an axial view of a slide mechanism of a nail extractor for waste wood boards in construction according to an embodiment of the present invention.

In the figure:

1. a base plate; 2. a main board; 3. a righting mechanism; 4. a nail taking mechanism; 5. connecting columns; 6. a return spring; 7. a baffle plate; 8. a movable caster; 9. a movable handle; 10. pushing the round wheel; 11. a sector disc; 12. a square hole; 13. a first main shaft; 14. a spur gear; 15. a rack; 16. a strip-shaped groove; 17. a limiting shaft; 18. fixing the disc; 19. a first motor; 20. a push rod; 21. a shaping block; 22. a T-shaped fixture block; 23. a fixed block; 24. righting the inclined plate; 25. an L-shaped plate; 26. a kidney gear; 27. a second motor; 28. a cylindrical gear; 29. a belt pulley; 30. a transfer belt; 31. a driven plate; 32. an L-shaped rod; 33. a guide block; 34. a connecting rod; 35. a T-shaped fixed block; 36. taking a nail barrel; 37. a magnetic plate; 38. an elastic rod; 39. taking out the nail claw; 40. pressing a plate; 41. a cylinder; 42. a scraper knife; 43. a sliding mechanism; 44. a first slide rail; 45. a first sliding block; 46. a square block; 47. a first screw rod; 48. a third motor; 49. a second sliding block; 50. a second slide rail; 51. a second screw rod; 52. a fourth motor; 53. a guide groove.

Detailed Description

For further explanation of the various embodiments, the drawings which form a part of the disclosure and which are incorporated in and constitute a part of this specification, illustrate embodiments and, together with the description, serve to explain the principles of operation of the embodiments, and to explain, by reference, other possible embodiments and advantages of the invention.

Example one

As shown in fig. 1-3:

the invention provides a schematic diagram of a righting and pulling-out type nail taking device for waste wood boards in constructional engineering, which comprises a bottom plate 1, wherein a main plate 2 matched with the bottom plate 1 is arranged above the bottom plate 1, a righting mechanism 3 connected with the main plate 2 is arranged between the main plate 2 and the bottom plate 1, a nail taking mechanism 4 connected with the main plate 2 is arranged at the top end of the main plate 2, connecting columns 5 connected with the main plate 2 and the bottom plate 1 are symmetrically arranged between the main plate 2 and the bottom plate 1 and on two sides of the righting mechanism 3, a through return spring 6 is arranged on each connecting column 5, a baffle 7 vertical to the top end of the bottom plate 1 is arranged between each connecting column 5 and the righting mechanism 3, a plurality of movable casters 8 uniformly distributed are arranged at the bottom end of the bottom plate 1, and movable handles 9 fixedly connected are arranged between the bottom plate 1 and the side surfaces of the main, the righting mechanism 3 comprises a pushing circular wheel 10, a fan-shaped disc 11 capable of rotating is arranged inside the pushing circular wheel 10, a through square hole 12 is arranged inside the fan-shaped disc 11, the center of the square hole 12 and the center of the fan-shaped disc 11 are not located at the same position, the center of the square hole is located below the fan-shaped disc 11, a first main shaft 13 penetrating through the pushing circular wheel 10 is arranged in the square hole 12, a straight gear 14 connected with the first main shaft 13 is arranged on the first main shaft 13, the straight gear 14 is arranged in the square hole 12, a rack 15 matched with the straight gear 14 is arranged in the square hole 12, the rack 15 is only located on one side of the straight gear 14, strip-shaped grooves 16 penetrating through the fan-shaped disc 11 are arranged on two sides of the square hole 12, and limit shafts 17 capable of rolling therein are arranged in the strip-shaped grooves 16, the tip of spacing axle 17 is equipped with rather than the fixed disk 18 that is connected, a main shaft 13 runs through fixed disk 18 extends to be equipped with on the outside rather than the motor 19 that is connected, be equipped with on the side circumference of promotion round wheel 10 rather than fixed connection's catch bar 20, catch bar 20 keeps away from the tip that promotes round wheel 10 is equipped with rather than the I-shaped piece 21 that is connected, the bilateral symmetry of I-shaped piece 21 is equipped with rather than the T type fixture block 22 that is connected, I-shaped piece 21 passes through T type fixture block inlays in rather than the fixed block 23 that is connected, T type fixture block 22 extends the tip of fixed block 23 is equipped with rather than the swash plate 24 that rights who is connected.

The detailed usage and function of the first embodiment: when the plank takes off from the building site, some probably perpendicular to plank of nail above the plank, but have the angle between most and the plank, will have the plank of nail to put on mainboard 2, at this moment, nail above the plank can pass through hole above the mainboard 2 extends to the below, at this moment, starts righting mechanism 3, at this moment, through starter motor 19, 19 first 19 begins work and drives first 13 of main shaft begins work, and is initial the inside that promotes the round wheel 10 is equipped with rather than the matched with sector disc 11 the inside of sector disc 11 is equipped with spur gear 14, works as spacing axle 17 is in when not sliding in the bar groove 16, the centre of a circle that promotes the round wheel 10 with the centre of a circle of fixed disk 18 is in same place, can not promote the I type piece 21 removes in being the fixed block, has no influence to the nail or the nail that the angle is less of perpendicular to the plank, the angle of the nail cannot be changed, when the nail is in a large angle, the limiting shaft 17 is in the movement of the strip-shaped groove 16, the straight gear 14 moves on the rack 15, so that the circle center between the fan-shaped disc 11 and the fixed disc 18 is changed, and the structure of the cam is equivalent to that of the cam when the nail rotates, so that the push rod 20 is driven to move back and forth, the nail can be smoothly moved back and forth by the aid of the continuous inclined plate 24 for straightening the nail with large angle, the nail can be gradually straightened on the wood board, the guide groove 53 in the baffle 7 can provide a limiting stroke for the straightened nail, the nail cannot deviate in the straightening process, the baffle 7 can effectively prevent the nail from being over-large in angle, and when the nail breaks down and is bent over-large, by starting the air cylinder 41, under the pressure generated by the air cylinder 41, the air cylinder rod is driven to enable the end part fixed connection of the shovel blade 42 to shovel the wood board with a certain force in an inclined direction, the shovel blade is embedded into the wood board, so that nails with large bending amplitude are shoveled, and the nails with different bending amplitudes can be righted simultaneously for better pulling out of subsequent nails.

Example two

As shown in fig. 1, fig. 4 to fig. 5:

the invention provides a schematic diagram of a righting and pulling type nail removing device for waste wood boards in constructional engineering, wherein,

the nail taking mechanism 4 comprises an L-shaped plate 25, a waist-shaped gear 26 is arranged on one side of the L-shaped plate 25, a second motor 27 connected with the waist-shaped gear 26 is arranged inside the waist-shaped gear 26, a cylindrical gear 28 matched with the waist-shaped gear 26 is arranged at the gear end of the waist-shaped gear 26, a belt pulley 29 connected with the cylindrical gear 28 is arranged on the side surface of the cylindrical gear 28, a transmission belt 30 matched with the belt pulley 29 is arranged on the circumference of the side surface of the belt pulley 29, a driven plate 31 matched with the transmission belt 30 is arranged at the other end of the transmission belt 30, a plurality of weight reducing holes uniformly distributed in a penetrating way are arranged on the driven plate 31, an L-shaped rod 32 connected with the cylindrical gear 28 and the driven plate 31 is arranged between the cylindrical gear 28 and the driven plate 31, a penetrating stroke groove is arranged at the end part of the L-shaped rod, a guide block 33 capable of sliding in the stroke groove is arranged in the stroke, be equipped with the T type fixed block 35 that is run through on the connecting rod 34, just the other end of T type fixed block 35 is fixed on the side of L template 25, the other end of connecting rod 34 is equipped with the nail of getting 36 rather than being connected, just the connecting rod 34 runs through get a 36 and extend to inside, the connecting rod 34 extends to get the inside tip of a 36 and be equipped with the magnetic force board 37 rather than being connected, get the inside of a 36 and be in the below symmetry of magnetic force board 37 be equipped with get the elastic rod 38 that a 36 is connected, be equipped with the nail claw 39 of getting rather than being connected on the relative position of elastic rod 38, and it has the radian to get the nail claw 39, is equipped with the oblique angle that the opening slowly becomes downwards at the department of getting the nail, the bottom of getting a 36 is equipped with the clamp plate 40 rather than being connected, the bilateral symmetry of fixed block 32 is equipped with rather than matched with cylinder 41, the cylinder 41 is provided with a telescopic cylinder inside

The telescopic rod is provided with a scraper knife 42 matched with the telescopic rod at the end part, the same sliding mechanisms 43 are arranged at the bottom end of the righting mechanism 3 and the top end of the nail taking mechanism 4, each sliding mechanism 43 comprises a first sliding rail 44, a first sliding block 45 matched with the first sliding rail 44 and capable of sliding is arranged on the first sliding rail 44, a first square block 46 connected with the first sliding block 45 is arranged at the bottom end of the first sliding block 45, a first screw rod 47 penetrating through the square block 46 to two sides is arranged inside the square block 46, a third motor 48 matched with the first screw rod 47 is arranged on one side of the first screw rod 47, a second sliding block 49 connected with the second sliding block 46 is arranged at the bottom end of the square block 46, a second sliding rail 50 vertical to the first sliding rail 44 is arranged on the second sliding block 49, a second sliding screw rod 51 matched with the second sliding screw rod 50 is arranged below the second sliding rail 50, and a fourth motor 52 connected with the second screw rod 51, a guide groove 53 opposite to the centering mechanism 3 is provided in the baffle 7.

The detailed application method and function of the second embodiment: when the angle of the nail seems to be more vertical to the wood board, at this time, the second motor 27 is started, the second motor 27 drives the waist-shaped gear 26 to rotate under the action of the second motor 27, the waist-shaped gear 26 is matched with the cylindrical gear 28, the belt pulley 29 connected with the waist-shaped gear is arranged on the side edge of the waist-shaped gear 26, the driven disc 31 is arranged at the other end of the transmission belt 30, the straight edge and the round edge exist during the rotation of the waist-shaped gear 26, so that the end part of the L-shaped rod 32 connected with the waist-shaped gear can rotate at an angle, the guide block 33 can slide in the L-shaped rod 32, the T-shaped fixing block 35 is connected with the side edge of the guide block 33, the connecting rod 34 can only move up and down after being fixed by the T-shaped fixing block 35, and the other point of the connecting rod 34 extends into the nail taking barrel 36, when moving downwards, the pressing plate 40 fixedly connected with the bottom end of the nail taking barrel 36 is knocked on the wood board, under the action of pressure, the tip end position of the nail touches the top end of the bottom plate 1, at the moment, an opposite acting force is generated, a certain gap is generated between the wood board and the nail, the nail cap of the nail enters the nail taking barrel 36, the elastic rod 38 has elasticity, because the inclination of the opening of the nail taking claw 39 is gradually increased downwards, the nail cap can be clamped between every two nail taking claws 39, the magnetic plate 37 can also help to adsorb the nail cap, the nail can be effectively pulled out, in the back and forth movement, the pressing plate 40 realizes that the gap between the nail cap and the wood board is gradually increased, the nail taking claw 39 helps to take out the nail, the mechanism becomes more flexible, and finally the nail is separated from the wood board, realized the reuse of nail and plank, through increase in the bottom moreover the help that slide mechanism 43 can be just realizes getting the nail of different positions, wherein through three 48 drives of motor one 47 realizes rotating, makes slider one 45 realizes the displacement of a direction, slider two 49 with be equipped with the connection between slider one 45 square piece 46, through four 52 drives of motor two 51 realize the displacement of another horizontal direction, realize the displacement of two directions of mechanism, make the nail regardless of in which place of plank all can take out, improved the flexibility of device greatly.

In summary, according to the technical scheme of the invention, the driving round wheel, the sector disc, the straight gear, the rack, the limiting shaft, the first motor, the driving rod, the I-shaped block, the centering inclined block and other components can help the bent nail to be perpendicular to the wood board, so that the subsequent nail taking is simpler and easier, and danger is easily caused in the process of manually straightening the bent nail The second motor, the cylindrical gear, the transmission belt, the L-shaped rod, the guide block, the connecting rod, the nail taking barrel, the magnetic plate, the elastic rod, the nail taking claw, the pressing plate and the like can help the nail cap to be separated from the wood board slowly, the nail taking claw can help the nail to be taken out while the nail cap is separated from the wood board as soon as possible, the magnetic plate can help the nail cap to be adsorbed better, the device is more flexible, damage to the wood board is reduced to the maximum degree, the repeated utilization rate of the wood board is improved, the bent nail can be reset, the nail is prevented from being pressed to be straight by follow-up people, through the arranged sliding mechanism, the horizontal movement of any position of the righting mechanism and the horizontal movement of the nail taking mechanism can be realized through the matching among the sliding rail, the sliding block, the screw rod and the motor, and the nail can be righted and taken out in any direction, manual adjustment is not needed, manual operation time is reduced, and flexibility of the machine is improved.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the present invention, and any modifications, equivalents, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims (9)

1. A righting and pulling-out type nail taking device for waste wood boards in constructional engineering is characterized by comprising a bottom plate (1), a main plate (2) matched with the bottom plate (1) is arranged above the bottom plate (1), a righting mechanism (3) connected with the main plate (2) is arranged between the main plate (2) and the bottom plate (1), a nail taking mechanism (4) connected with the main plate (2) is arranged at the top end of the main plate (2), connecting columns (5) connected with the main plate are symmetrically arranged between the main plate (2) and the bottom plate (1) and on two sides of the righting mechanism (3), a through return spring (6) is arranged on each connecting column (5), a baffle (7) perpendicular to the top end of the bottom plate (1) is arranged between each connecting column (5) and the righting mechanism (3), and a plurality of movable casters (8) which are uniformly distributed are arranged at the bottom end of the bottom plate (1), a movable handle (9) fixedly connected is arranged between the bottom plate (1) and the side surface of the main plate (2).

2. A strengthening and pulling-out type nail removing device for waste wood boards in building engineering according to claim 1, wherein the strengthening mechanism (3) comprises a pushing circular wheel (10), a sector disc (11) capable of rotating is arranged inside the pushing circular wheel (10), a square hole (12) penetrating through is arranged inside the sector disc (11), the center of the square hole (12) and the center of the sector disc (11) are not in the same position, the center of the square hole is below the sector disc (11), a first main shaft (13) penetrating through the pushing circular wheel (10) is arranged in the square hole (12), a spur gear (14) connected with the first main shaft (13) is arranged on the first main shaft (13), and the spur gear (14) is arranged in the square hole (12).

3. A strengthening and pulling-out type nail removing device for waste wood boards in building engineering according to claim 2, wherein a rack (15) matched with the straight gear (14) is arranged in the square hole (12), the rack (15) is only arranged on one side of the straight gear (14), strip-shaped grooves (16) penetrating through the fan-shaped disc (11) are formed in two sides of the square hole (12), limiting shafts (17) capable of rolling in the strip-shaped grooves are arranged in every two strip-shaped grooves (16), a fixing disc (18) connected with the limiting shafts is arranged at the end part of each limiting shaft (17), and a first main shaft (13) penetrates through the fixing disc (18) and extends to the outside to be provided with a first motor (19) connected with the fixing disc.

4. The nail-removing device for the waste wood boards in the building engineering of the righting and pulling-out type according to claim 3, wherein a pushing rod (20) fixedly connected with the pushing rod is arranged on the circumference of the side edge of the pushing round wheel (10), a I-shaped block (21) connected with the pushing rod is arranged at the end part, far away from the pushing round wheel (10), of the pushing rod (20), T-shaped clamping blocks (22) connected with the I-shaped block are symmetrically arranged on two sides of the I-shaped block (21), the I-shaped block (21) is embedded in a fixing block (23) connected with the I-shaped block through the T-shaped clamping blocks, and a righting inclined plate (24) connected with the T-shaped clamping block is arranged at the end part, extending out of the fixing block (23), of the T-shaped clamping.

5. The righting and pulling type nail removing device for the waste wood boards in the building engineering as claimed in claim 1, wherein the nail removing mechanism (4) comprises an L-shaped plate (25), a kidney-shaped gear (26) is arranged on one side of the L-shaped plate (25), a second motor (27) connected with the kidney-shaped gear (26) is arranged inside the kidney-shaped gear (26), a cylindrical gear (28) matched with the kidney-shaped gear is arranged at the gear end of the kidney-shaped gear (26), a belt pulley (29) connected with the cylindrical gear is arranged on the side surface of the cylindrical gear (28), a transmission belt (30) matched with the belt pulley is arranged on the circumference of the side surface of the belt pulley (29), and a driven disc (31) matched with the transmission belt is arranged at the other end of the transmission belt (30).

6. A righting and pulling type nail removing device for waste wood boards in building engineering according to claim 5, characterized in that a plurality of lightening holes are uniformly distributed through the driven disc (31), an L-shaped rod (32) connected with the cylindrical gear (28) and the driven disc (31) is arranged between the cylindrical gear and the driven disc, a through stroke groove is arranged at the end part of the L-shaped rod, a guide block (33) capable of sliding in the stroke groove is arranged in the stroke groove, a connecting rod (34) connected with the guide block (33) is arranged in the direction of extending to the L-shaped plate (25), and a T-shaped fixing block (35) is arranged on the connecting rod (34).

7. A nail pulling device for waste wood boards in building engineering of righting and pulling type according to claim 6, wherein the other end of the T-shaped fixing block (35) is fixed on the side face of the L-shaped board (25), the other end of the connecting rod (34) is provided with a nail pulling barrel (36) connected with the connecting rod, the connecting rod (34) penetrates through the nail pulling barrel (36) and extends to the inside, and the end of the connecting rod (34) extending to the inside of the nail pulling barrel (36) is provided with a magnetic plate (37) connected with the connecting rod.

8. A nail-pulling-out type righting and pulling device for waste wood boards in building engineering according to claim 7, wherein elastic rods (38) connected with the nail-pulling barrel (36) are symmetrically arranged inside the nail-pulling barrel (36) below the magnetic plate (37), nail-pulling claws (39) connected with the elastic rods (38) are arranged at positions opposite to the elastic rods (38), the nail-pulling claws (39) are provided with radian, oblique angles with gradually enlarged openings downwards are arranged at nail-pulling positions, pressing plates (40) connected with the nail-pulling barrel (36) are arranged at the bottom end of the nail-pulling barrel, air cylinders (41) matched with the fixing blocks (32) are symmetrically arranged at two sides of the fixing blocks (32), telescopic rods capable of stretching inside are arranged inside the air cylinders (41), and scraper knives (42) matched with the telescopic rods are arranged at the end parts of the telescopic rods.

9. A centralizing and pulling-out type nail removing device for waste wood boards in constructional engineering according to claim 1, wherein the bottom end of the centralizing mechanism (3) and the top end of the nail removing mechanism (4) are provided with the same sliding mechanisms (43), each sliding mechanism (43) comprises a first sliding rail (44), each first sliding rail (44) is provided with a first sliding block (45) which can slide in a matching manner, the bottom end of each first sliding block (45) is provided with a first square block (46) which is connected with the first sliding block, a first screw rod (47) which penetrates through the square block (46) from eye to two sides is arranged inside each square block (46), one side of each first screw rod (47) is provided with a third motor (48) which is matched with the first screw rod, the bottom end of each square block (46) is provided with a second sliding block (49) which is connected with the second sliding rail (50) which is perpendicular to the first sliding rails (44), a second screw rod (51) which is matched with the second slide rail (50) and can slide is arranged below the second slide rail (50), a fourth motor (52) connected with the second screw rod (51) is arranged on one side of the second screw rod (51), and a guide groove (53) opposite to the righting mechanism (3) is arranged in the baffle (7).

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