CN114473770A

CN114473770A - Floating automatic compensation grinder

Info

Publication number: CN114473770A
Application number: CN202210081654.6A
Authority: CN
Inventors: 白洋; 朱亚光; 缪鹏
Original assignee: Qingdao New Motivity Wood Working Machinery Co ltd
Current assignee: Qingdao New Motivity Wood- Working Machinery Co.,Ltd.
Priority date: 2022-01-24
Filing date: 2022-01-24
Publication date: 2022-05-13
Anticipated expiration: 2042-01-24
Also published as: CN114473770B

Abstract

The invention relates to a floating type automatic compensation sander, which belongs to the field of plate sanding equipment and comprises a rack, wherein a conveying belt is arranged on the rack, a sanding mechanism is arranged above the rack, and a floating mechanism is arranged in the rack; the floating mechanism is including setting firmly the floating cylinder at frame both ends, the cylinder body of floating cylinder is connected in the frame, the vertical upwards setting of piston rod end portion of floating cylinder, the piston rod end portion of floating cylinder is connected with a roof that floats jointly, the roof that floats is located sanding mechanism under, the top butt of roof that floats is in conveyer belt inner wall, the last pressure regulating valve that is provided with of sanding mechanism, be provided with the preset pressure value in the pressure regulating valve, the plate pressure value that pressure regulating valve received according to sanding mechanism compares with the pressure preset value and acts in order to control the cylinder body of floating cylinder. The invention has the effects of preventing the head and tail of the plate from being gnawed and scraping the surface of the plate more uniformly.

Description

Floating automatic compensation grinder

Technical Field

The invention relates to the field of plate processing equipment, in particular to a floating type automatic compensation sander.

Background

At present, a sanding machine, also called a polishing machine, is one of the devices commonly used in the modern wood processing industry, and is used for sanding a workpiece by using a cutting tool filled with abrasive materials (abrasive cloth or abrasive paper) so as to improve the thickness precision, the flatness and the roughness quality of the workpiece, and processing a good base surface for the surface decoration of a wooden part and the secondary processing of paint or a plate. Therefore, sanding machines are widely used for finishing various artificial boards, wooden articles, and the like. The sander can machine not only a plane, but also an outer circle, an inner circle surface, an arc surface and a molding surface. The sander can be used for processing a base surface to be painted and also can be used for sanding and polishing a paint coating. Therefore, the sander is one of the necessary equipments for processing wooden products in enterprises such as woodware, furniture, vehicles, ships, buildings, war industry, wood models, wooden toys and the like.

When the operation is cut to grinder's sand light unit sand, the both sides that the unit was cut to the sand are provided with to the spacing compression roller in panel top, after the panel front end breaks away from the nip roll, receive the crooked influence of panel, can make the panel front end perk that makes progress, because the front end edge cuts the unit contact with the sand earlier, before panel has not contacted the following nip roll of unit is cut to the sand, the tip of panel can let the sand cut the unit under the multiprocessing go certain thickness, the thickness that can make after the panel processing is inconsistent, the afterbody of panel is with reason, the work piece gnaws the head and sweeps the tail phenomenon promptly, it is also that work piece head and afterbody sand cut the volume many, it is inhomogeneous to lead to panel surface sand to cut the degree of depth, the sand cuts the effect unsatisfactory.

Disclosure of Invention

The invention provides a floating type automatic compensation sander, which aims to prevent a panel from gnawing and sweeping the tail, evenly sand the surface of the panel and improve the sanding effect.

The invention provides a floating type automatic compensation sander, which adopts the following technical scheme:

a floating type automatic compensation sander comprises a rack, wherein a conveying belt is arranged on the rack, a sanding mechanism is arranged above the rack, material pressing mechanisms for limiting the tops of boards are arranged at positions, close to two ends, of the rack, and a floating mechanism is arranged in the rack; the floating mechanism comprises floating cylinders fixedly arranged at two ends of a rack, the end parts of piston rods of the floating cylinders are vertically arranged downwards and connected to the rack, the cylinder body of each floating cylinder is connected with a floating top plate together, the floating top plate is located under a sanding mechanism, the top of the floating top plate is abutted to the inner wall of a conveying belt, a pressure regulating valve is arranged on the sanding mechanism, a preset pressure value is arranged in the pressure regulating valve, the pressure regulating valve compares the plate pressure value received by the sanding mechanism with a preset pressure value to control the cylinder body of each floating cylinder to act, the cylinder body of each floating cylinder is controlled to float downwards when the pressure value is greater than the preset value, the floating top plate is driven to move downwards, the cylinder body of each floating cylinder is controlled to jack up when the pressure value is smaller than the preset pressure value, and the floating top plate is pushed to move upwards.

By adopting the technical scheme, when the thickness of the plate is increased and the pressure applied to the abrasive belt is greater than the preset value, the cylinder body of the floating cylinder is controlled to move downwards to drive the conveying belt and the plate to move downwards, so that the depth of the abrasive belt to be sanded to the plate is reduced, when the pressure applied to the abrasive belt is less than the preset value, the cylinder body of the floating cylinder is controlled to move upwards to jack the floating top plate, the plate on the conveying belt can be sanded, the thickness consistency of the sanded plate can be ensured, and the deviation of the plate thickness is compensated; in addition, when the both ends of panel were perk, when panel got into the abrasive band, the prelude perk of panel, when panel left abrasive band bottom, the afterbody perk, the pressure that the abrasive band received is greater than the default, the cylinder body downstream of control floating cylinder makes conveyer belt and panel not receive the pressure of unsteady roof, thereby can ensure that the abrasive band sand cuts the degree of depth reduction of panel, thereby ensure that whole panel is unanimous by the degree of depth of sanding, prevent that panel from appearing gnawing the phenomenon of sweeping the tail at the in-process of sanding, thereby can be even to panel surface sanding, improve the sanding effect.

Optionally, a through hole is formed in the position, close to the two ends, of the floating top plate, a screw rod is fixedly arranged at the top of the cylinder body of the floating air cylinder, the screw rod penetrates through the through hole and then is in threaded connection with a locking nut, a step groove is formed in the screw rod, and the step groove is used for being clamped on the inner wall of the floating top plate.

Through adopting above-mentioned technical scheme, the screw rod wears to penetrate in the through-hole, and step groove butt is fixed with screw rod and unsteady roof in the bottom of unsteady roof, lock nut, and step groove and lock nut cooperation will float the roof and be fixed in on the screw rod, be convenient for the dismantlement and the installation of unsteady roof and unsteady cylinder.

Optionally, the sanding mechanism comprises a fixing frame arranged above the rack, a sanding roller is rotatably connected to the bottom of the fixing frame, a driven roller is rotatably connected to the top of the fixing frame, and an abrasive belt is tensioned between the sanding roller and the driven roller.

Through adopting above-mentioned technical scheme, follow the conveyer belt when panel and follow the bottom transmission of conveyer belt from the abrasive band, the roof that floats with conveyer belt and panel jack-up to with the abrasive band butt, make the abrasive band grind panel top automatically.

Optionally, a cleaning mechanism for cleaning debris on the abrasive belt is arranged on one side of the fixing frame; a tensioning roller which enables the abrasive belt to protrude outwards is rotationally connected in the fixed frame; the cleaning mechanism comprises a steel wire brush connected to the fixed frame, the steel wire brush is abutted to the outer side wall of the abrasive belt, the length direction of the steel wire brush is parallel to the axial direction of the tensioning roller, a movable frame is connected to the outside of the steel wire brush, and a driving assembly for driving the steel wire brush to slide in a reciprocating mode along the length direction of the movable frame is arranged on the movable frame.

By adopting the technical scheme, the driving component drives the steel wire brush to reciprocate, and the steel wire brush brushes down scraps on the abrasive belt, so that the abrasive belt is convenient to clean.

Optionally, the driving assembly includes a driving motor fixedly arranged on the movable frame, a driving wheel is fixedly arranged on an output shaft of the driving motor, one end of the steel wire brush is hinged to a connecting rod, one end of the connecting rod, far away from the steel wire brush, is hinged to an eccentric position of the driving wheel, one end of the steel wire brush, far away from the connecting rod, is fixedly provided with a guide rod, and a guide groove for the guide rod to pass through is formed in the movable frame.

Through adopting above-mentioned technical scheme, driving motor drive wheel rotates, and the drive wheel drives the connecting rod motion, can drive the reciprocating sliding of wire brush, and the wire brush sweeps the piece on the abrasive band down.

Optionally, a limiting box is fixedly connected to the fixed frame, a limiting groove is formed in the limiting box towards one side of the abrasive belt along the length direction of the limiting box, one side, away from the movable frame, of the abrasive belt extends into the limiting box from the limiting groove, a buffer spring is arranged in the limiting box, one end of the buffer spring is fixedly arranged on the movable frame, a connecting block is fixedly arranged at the other end of the buffer spring, the connecting block is located in the limiting box, one end, away from the buffer spring, of the connecting block is rotatably connected with a threaded column, and the threaded column penetrates through the limiting box and is in threaded connection with the limiting box.

Through adopting above-mentioned technical scheme, buffer spring plays the effect of buffering to the steel brush, and buffer spring's tension makes the steel brush butt all the time on the abrasive band, and is more thorough to the piece clearance on the abrasive band, adjusts the position that the connecting block can be adjusted to the screw thread post, can adjust buffer spring's tension, and then adjusts the distance between steel brush and the abrasive band.

Optionally, a material pumping cover is arranged on the fixed frame, a material pumping pipe is fixedly arranged at the top of the material pumping cover, and an air exhaust device is arranged in the material pumping pipe; the lower part of the material pumping cover is provided with an air injection pipe, the air injection pipe is positioned above the steel wire brush, the air injection pipe is provided with a plurality of spray heads along the length direction of the air injection pipe, one end of the air injection pipe extends to be provided with an air inlet pipe, and the air inlet pipe is connected with an external air source.

Through adopting above-mentioned technical scheme, the jet-propelled pipe is to the abrasive band jet-propelled, and the air current blows off remaining piece on the abrasive band, and updraft ventilator makes and is the negative pressure state in taking out the material pipe, and the piece of being convenient for outwards discharges through the exhaust column, clears up the abrasive band once more.

Optionally, the both ends of jet-propelled pipe are connected with the locating lever jointly, and the both ends of jet-propelled pipe are rotated and are connected on the locating lever, and the one end of keeping away from the intake pipe of jet-propelled pipe extends the locating lever and has set firmly the handle, and threaded connection has positioning bolt on the locating lever.

Through adopting above-mentioned technical scheme, rotate the handle, can rotate the jet-propelled pipe, be convenient for adjust the angle of shower nozzle, can jet-blast to the steel brush, clear up the steel brush.

Optionally, the positioning rod is hinged to a swing rod, one end, away from the positioning rod, of the swing rod is hinged to the outer side wall of the material pumping cover, and the fixing frame is provided with a power assembly for driving the air injection pipe to horizontally swing.

Through adopting above-mentioned technical scheme, power component is used for driving jet-propelled pipe horizontal hunting, makes the jet-propelled pipe jet-propelled scope wider, and is cleaner to the abrasive band clearance.

Optionally, the power assembly comprises a power motor fixedly arranged on the fixing frame, an output shaft of the power motor is fixedly provided with a first connecting rod, one end, far away from the power motor, of the first connecting rod is hinged to a second connecting rod, and one end, far away from the first connecting rod, of the second connecting rod is fixedly connected to the positioning rod.

By adopting the technical scheme, the power motor rotates to drive the first connecting rod to rotate and further drive the second connecting rod to move, so that the air injection pipe is driven to slide in a reciprocating manner to inject air to the abrasive belt.

Drawings

Fig. 1 is an isometric view of an embodiment of the present application.

Fig. 2 is a cross-sectional view of an embodiment of the present application.

Fig. 3 is a schematic view of the structure of the sanding mechanism and the structure of the scraping mechanism.

Fig. 4 is a schematic structural view of the floating mechanism.

Fig. 5 is a sectional view for highlighting the screw of the floating mechanism.

Fig. 6 is a schematic structural view of the cleaning mechanism.

FIG. 7 is a schematic view showing a structure for highlighting the wire brush.

FIG. 8 is a cross-sectional view of the wire brush shown in detail.

Fig. 9 is a schematic structural view of the gas lance and the pumping hood.

Fig. 10 is a sectional view of a gas lance and a pumping hood.

Fig. 11 is an enlarged view of a portion a of fig. 10.

Description of reference numerals: 1. a frame; 11. a conveyor belt; 12. a material pressing mechanism; 121. a positioning frame; 122. a nip roll; 13. a feeding end; 14. a discharging end; 15. an air draft cover; 2. a sanding mechanism; 21. a fixed mount; 22. grinding the roller; 23. a driven roller; 24. an abrasive belt; 25. a backing roll; 26. a liner tape; 27. a tension roller; 3. a floating mechanism; 31. a support plate; 32. a floating cylinder; 33. a floating roof; 331. a through hole; 34. a screw; 341. a step groove; 4. a cleaning mechanism; 41. a wire brush; 42. a movable frame; 421. a guide groove; 43. a drive assembly; 431. a drive motor; 432. a driving wheel; 433. a connecting rod; 434. a guide bar; 44. a limiting box; 441. a limiting groove; 442. a buffer spring; 443. connecting blocks; 444. a threaded post; 45. a material receiving groove; 451. a T-shaped slider; 46. positioning a plate; 461. a T-shaped chute; 47. a material pumping cover; 471. a material pumping pipe; 48. a gas ejector tube; 481. a spray head; 482. an air inlet pipe; 483. positioning a rod; 484. a swing rod; 485. a handle; 49. a power assembly; 491. a power motor; 492. a first connecting rod; 492. and a second connecting rod.

Detailed Description

The present invention is described in further detail below with reference to figures 1-10.

The embodiment of the invention discloses a floating type automatic compensation sander. Referring to fig. 1, the floating type automatic compensation sander comprises a frame 1, wherein the frame 1 is used for a plate to pass through, a conveyor belt 11 is arranged on the frame 1, the conveyor belt 11 is used for conveying the plate, a floating mechanism 3 is arranged in the frame 1, the floating mechanism 3 is positioned in the conveyor belt 11 and is abutted against the top of the conveyor belt 11, a sanding mechanism 2 is arranged at the top of the frame 1, and the sanding mechanism 2 is positioned above the floating mechanism 3; when carrying out the sanding to panel, panel follows conveyer belt 11 and passes from the top of frame 1, and the relocation mechanism 3 is with work piece jack-up, ensures that the top of panel cuts 2 butts with the sanding all the time, is convenient for carry out the sanding to the top that the mechanism 2 was cut to the sanding.

Referring to fig. 2, one end of the frame 1 is a feeding end 13, the other end is a discharging end 14, and the positions of the frame 1 near the feeding end 13 and the discharging end 14 are both provided with the material pressing mechanisms 12 with the same structure. The material pressing mechanism 12 includes a positioning frame 121 fixedly disposed at the top of the frame 1, the bottom of the positioning frame 121 is rotatably connected to a material pressing roller 122, the material pressing roller 122 is axially horizontally disposed and perpendicular to the conveying direction of the conveyor belt 11, a gap for the plate to pass through is reserved between the bottom of the material pressing roller 122 and the top of the frame 1, and the material pressing roller 122 is used for limiting the top of the plate.

An air draft cover 15 is arranged on one side, close to the discharge end 14, of the frame 1, the air draft cover 15 is located between the material pressing roller 122 and the grinding mechanism 2, debris generated by grinding on the plate is sucked away, and the material pressing roller 122 is prevented from pressing the debris on the plate.

Referring to fig. 3, the sanding mechanism 2 comprises a fixed frame 21 arranged above the frame 1, a sanding roller 22 is rotatably connected to the bottom of the fixed frame 21, the sanding roller 22 is a power roller, a driven roller 23 is rotatably connected to the top of the fixed frame 21, an abrasive belt 24 is tensioned between the sanding roller 22 and the driven roller 23, and the abrasive belt 24 is used for sanding the top of the plate; the middle position of the fixed frame 21 is rotatably connected with a lining belt roller 25, a lining belt 26 is tensioned between the lining belt roller 25 and the sanding roller 22, the lining belt 26 is positioned on the inner side of the sanding belt 24, and the lining belt 26 is driven along with the sanding roller 22 to exert pressure on the sanding belt 24, so that the sanding belt 24 is tightly abutted against a plate.

Referring to fig. 4 and 5, the floating mechanism 3 includes a support plate 31 fixed in the machine frame 1, a floating cylinder 32 is fixed at a position of the support plate 31 near two ends by bolts, a piston rod of the floating cylinder 32 is connected to the support plate 31, a floating top plate 33 is connected to a top portion of the floating cylinder 32, the floating top plate 33 is located under the sanding roller 22, a top portion of the floating top plate 33 abuts against an inner wall of the conveyor belt 11, a cavity is formed at a bottom portion of the floating top plate 33, so that the floating top plate 33 is fastened to an outer side of the floating cylinder 32, through holes 331 are formed at positions of the floating top plate 33 near two ends, a screw 34 is fixed at a top portion of the floating cylinder 32, the through holes 331 are used for the screw 34 on the floating cylinder 32 to pass through, a locking nut is connected to the screw 34 by a thread after the screw 34 passes through the through holes 331, a step groove 341 is formed in the screw 34, and the step groove 341 is used for being fastened to an inner wall of the floating top plate 33, the stepped groove 341 is fitted with a lock nut for fixing the floating cover plate 33 to the screw 34.

The abrasive belt 24 is provided with a pressure regulating valve (not shown in the figure), the pressure regulating valve is used for controlling the cylinder body of the floating cylinder 32 to jack up or move downwards according to the pressure applied to the abrasive belt 24, a preset pressure value is arranged in the pressure regulating valve, when the thickness of the plate is increased, the pressure applied to the abrasive belt 24 is greater than a preset value, the cylinder body of the floating cylinder 32 is controlled to move downwards, the conveyor belt 11 and the plate are made to move downwards, the depth of the abrasive belt 24 from the abrasive belt to the plate is reduced, when the pressure applied to the abrasive belt 24 is less than the preset value, the cylinder body of the floating cylinder 32 is controlled to jack up upwards, the conveyor belt 11 and the plate are pushed to move upwards, the thickness of the plate after the abrasive belt is ground is consistent, and the deviation of the thickness of the plate is made up. In the process that the plate is conveyed to the abrasive belt 24 along with the conveyor belt 11, the head or the tail of the plate is tilted due to the pressure of the pressure roll 122 on the plate, when the plate enters the abrasive belt 24, the head of the plate is tilted, when the plate leaves the bottom of the abrasive belt, the tail is tilted, the pressure applied to the abrasive belt 24 is greater than a preset value, the cylinder body of the floating cylinder 32 is controlled to move downwards, the conveyor belt 11 and the plate are moved downwards, the depth of the abrasive belt 24 from sanding to the plate can be reduced, the sanding depth of the whole plate is consistent, and the phenomenon that the head of the plate is gnawed and the tail of the plate is swept in the sanding process is prevented. In addition, different pressure preset values can be set according to the plates with different thicknesses, and sanding can be performed on the thicknesses of the different plates.

Referring to fig. 3, when the abrasive belt 24 is used to process the top of a plate, debris generated by grinding is adsorbed on the abrasive belt 24, and in order to prevent the debris from affecting the grinding capacity of the abrasive belt 24, the fixing frame 21 is provided with the cleaning mechanism 4, the cleaning mechanism 4 is located on one side of the fixing frame 21 close to the feeding end 13, and the cleaning mechanism 4 abuts against the outer side of the abrasive belt 24.

A tension roller 27 is rotatably connected in the fixed frame 21, the tension roller 27, the sanding roller 22 and the driven roller 23 are not in a vertical plane, and the abrasive belt 24 passes by from the outer side of the tension roller 27, so that the abrasive belt 24 protrudes outwards, and the abrasive belt 24 can be tensioned, so that the abrasive belt 24 is more stable in the transmission process.

Referring to fig. 6 and 7, the cleaning mechanism 4 includes a wire brush 41 connected to the fixed frame 21, the wire brush 41 abuts against the outer sidewall of the abrasive belt 24, the length direction of the wire brush 41 is parallel to the axial direction of the tension roller 27, a movable frame 42 is connected to the outside of the wire brush 41, a driving assembly 43 for driving the wire brush 41 to slide back and forth is disposed on the movable frame 42, and the sliding direction of the wire brush 41 is perpendicular to the conveying direction of the conveyor belt 11. The driving assembly 43 comprises a driving motor 431 fixedly arranged on the movable frame 42, a driving wheel 432 is fixedly arranged on an output shaft of the driving motor 431, one end of the steel wire brush 41 is hinged with a connecting rod 433, one end of the connecting rod 433, which is far away from the steel wire brush 41, is hinged at an eccentric position of the driving wheel 432, one end of the steel wire brush 41, which is far away from the connecting rod 433, is fixedly provided with a guide rod 434, and a guide groove 421 for the guide rod 434 to pass through is formed in the movable frame 42. The driving motor 431 drives the driving wheel 432 to rotate, the driving wheel 432 drives the connecting rod 433 to move, the wire brush 41 can be driven to slide back and forth, and the wire brush 41 sweeps the scraps on the abrasive belt 24.

A positioning plate 46 is fixedly arranged on the fixing frame 21, a material receiving groove 45 is arranged on the positioning plate 46, and the material receiving groove 45 is positioned below the steel wire brush 41 and is used for receiving scraps brushed by the steel wire brush 41; t type spout 461 has been seted up to the lateral wall of locating plate 46, connects the lateral wall of silo 45 to set firmly T type slider 451, and T type slider 451 slides and connects in T type spout 461, is convenient for will connect silo 45 from one side roll-off of locating plate 46, is convenient for clear up the piece in the butt joint silo 45.

Referring to fig. 3 and 8, a limit box 44 is fixedly connected to the fixed frame 21, a length direction of the limit box 44 is perpendicular to a transmission direction of the abrasive belt 24, a limit groove 441 is formed in one side of the limit box 44 facing the abrasive belt 24 along the length direction of the limit box, one side of the abrasive belt 24 away from the movable frame 42 extends into the limit box 44 from the limit groove 441, a buffer spring 442 is arranged in the limit box 44, one end of the buffer spring 442 is fixedly arranged on the movable frame 42, the other end of the buffer spring is fixedly provided with a connection block 443, the connection block 443 is located in the limit box 44, one end of the connection block 443 away from the buffer spring 442 is rotatably connected with a threaded column 444, and the threaded column 444 penetrates through the limit box 44 and is in threaded connection with the limit box 44; the buffer spring 442 has a buffering effect on the wire brush 41, the tension of the buffer spring 442 enables the wire brush 41 to be always abutted to the abrasive belt 24, debris on the abrasive belt 24 can be cleaned more thoroughly, the position of the connecting block 443 can be adjusted by adjusting the threaded column 444, the tension of the buffer spring 442 can be adjusted, and further the distance between the wire brush 41 and the abrasive belt 24 can be adjusted.

Referring to fig. 9 and 10, a material pumping cover 47 is disposed on the fixing frame 21 (see fig. 3), a material pumping pipe 471 is fixedly disposed at the top of the material pumping cover 47, and an air exhaust device is disposed in the material pumping pipe 471 to make the interior of the material pumping pipe 471 in a negative pressure state, so that the debris can be conveniently discharged through the air exhaust pipe. An air injection pipe 48 is arranged below the material drawing cover 47, the air injection pipe 48 is positioned above the steel wire brush 41, the air injection pipe 48 is provided with a plurality of spray heads 481 along the length direction thereof, two ends of the air injection pipe 48 are commonly connected with a positioning rod 483, the positioning rod 483 is hinged with two swing rods 484, and one end of each swing rod 484, which is far away from the positioning rod 483, is hinged on the outer side wall of the material drawing cover 47; the both ends of jet-propelled pipe 48 are rotated and are connected on locating lever 483, and the one end of jet-propelled pipe 48 extends locating lever 483 and has set firmly intake pipe 482, and intake pipe 482 is connected with outside air supply, and the other end of jet-propelled pipe 48 extends locating lever 483 and has set firmly handle 485, and threaded connection has positioning bolt on the locating lever 483, and positioning bolt is used for fixing jet-propelled pipe 48 and locating lever 483. The air injection pipe 48 injects air to the abrasive belt 24, so that the residual debris on the abrasive belt 24 can be blown down, and the debris is pumped into the material pumping cover 47 by the material pumping cover 47, so that the debris can be discharged conveniently; the air injection pipe 48 can be rotated by rotating the handle 485, so that the angle of the spray head 481 can be conveniently adjusted, the air can be injected into the steel wire brush 41, and the steel wire brush 41 can be cleaned.

Referring to fig. 10 and 11, in order to clean the abrasive belt 24 more thoroughly, the fixed frame 21 is provided with a power assembly 49, and the power assembly 49 is used for driving the air injection pipe 48 to swing horizontally, so that the air injection range of the air injection pipe 48 is wider. The power assembly 49 comprises a power motor 491 fixedly arranged on the fixed frame 21, an output shaft of the power motor 491 is fixedly provided with a first connecting rod 492, one end of the first connecting rod 492 far away from the power motor 491 is hinged with a second connecting rod 492, and one end of the second connecting rod 492 far away from the first connecting rod 492 is fixedly connected to the positioning rod 483; the rotation of the power motor 491 can drive the first connecting rod 492 to rotate, and further drive the second connecting rod 492 to move, so as to drive the air injection pipe 48 to slide back and forth to inject air into the abrasive belt 24.

The implementation principle of the floating type automatic compensation sander in the embodiment of the invention is as follows: adding a plate to a conveyor belt 11 of a frame 1, driving the plate to move to the lower side of an abrasive belt 24 by the conveyor belt 11, sanding the plate by the abrasive belt 24, controlling the cylinder body of a floating cylinder 32 to move by a pressure regulating valve according to the pressure of the plate received by the abrasive belt 24 after the plate enters the bottom of the abrasive belt 24, pushing a floating top plate 33 to vertically move according to a preset pressure value, ensuring that the sanding depth of the whole plate is consistent, and preventing the plate from biting and sweeping the head and the tail in the sanding process.

When the abrasive belt 24 is cleaned, the motor drives the steel wire brush 41 to slide back and forth, the steel wire brush 41 scrapes off the debris on the abrasive belt 24, the air injection pipe 48 injects air to the abrasive belt 24 to blow off the debris on the abrasive belt 24, the material pumping pipe 471 pumps away the debris blown by the air injection pipe 48 to clean the debris on the abrasive belt 24 for the second time, and the abrasive belt 24 is kept clean.

The above are all preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.

Claims

1. The utility model provides a floating automatic compensation grinder, includes frame (1), is provided with conveyer belt (11) on frame (1), and the top of frame (1) is provided with the sanding and cuts mechanism (2), and frame (1) is close to the position at both ends and all is provided with spacing swager structure (12) in panel top, its characterized in that:

a floating mechanism (3) is arranged in the frame (1);

the floating mechanism (3) comprises floating cylinders (32) fixedly arranged at two ends of a rack (1), the end parts of piston rods of the floating cylinders (32) are vertically arranged downwards and connected to the rack (1), the cylinder bodies of the floating cylinders (32) are connected with a floating top plate (33) together, the floating top plate (33) is positioned under the sanding mechanism (2), the top parts of the floating top plates (33) are abutted against the inner wall of the conveying belt (11), a pressure regulating valve is arranged on the sanding mechanism (2), a preset pressure value is arranged in the pressure regulating valve, the pressure regulating valve controls the cylinder body of the floating cylinders (32) to act by comparing the plate pressure value and the preset pressure value received by the sanding mechanism (2), when the pressure value is greater than the preset value, the cylinder body of the floating cylinders (32) is controlled to float downwards to drive the floating top plate (33) to move downwards, and when the pressure value is smaller than the preset pressure value, the cylinder body of the floating cylinders (32) is controlled to jack up, pushing the floating top plate (33) to move upwards.

2. A floating type automatic compensation sander as set forth in claim 1, wherein: the floating top plate (33) is provided with through holes (331) at positions close to two ends, the top of the cylinder body of the floating cylinder (32) is fixedly provided with screw rods (444) and (34), the screw rods (444) and (34) penetrate through the through holes (331) and then are connected with locking nuts in a threaded mode, step grooves (341) are formed in the screw rods (444) and (34), and the step grooves (341) are used for being clamped on the inner wall of the floating top plate (33).

3. A floating type automatic compensation sander as set forth in claim 1, wherein: the sanding mechanism (2) comprises a fixing frame (21) arranged above the rack (1), a sanding roller (22) is rotatably connected to the bottom of the fixing frame (21), a driven roller (23) is rotatably connected to the top of the fixing frame (21), and an abrasive belt (24) is tensioned between the sanding roller (22) and the driven roller (23).

4. A floating type automatic compensation sander as set forth in claim 3, wherein:

a cleaning mechanism (4) for cleaning the scraps on the abrasive belt (24) is arranged on one side of the fixed frame (21);

a tension roller (27) which enables the abrasive belt (24) to protrude outwards is rotationally connected with the fixed frame (21);

the cleaning mechanism (4) comprises a steel wire brush (41) connected to the fixed frame (21), the steel wire brush (41) abuts against the outer side wall of the abrasive belt (24), the length direction of the steel wire brush (41) is parallel to the axial direction of the tensioning roller (27), a movable frame (42) is connected outside the steel wire brush (41), and a driving assembly (43) for driving the steel wire brush (41) to slide in a reciprocating mode along the length direction of the movable frame (42) is arranged on the movable frame (42).

5. A floating type automatic compensation sander as set forth in claim 4, wherein: the driving assembly (43) comprises a driving motor (431) fixedly arranged on a movable frame (42), a driving wheel (432) is fixedly arranged on an output shaft of the driving motor (431), one end of a steel wire brush (41) is hinged to a connecting rod (433), one end, far away from the steel wire brush (41), of the connecting rod (433) is hinged to an eccentric position of the driving wheel (432), one end, far away from the connecting rod (433), of the steel wire brush (41) is fixedly provided with a guide rod (434), and a guide groove (421) for the guide rod (434) to penetrate through is formed in the movable frame (42).

6. A floating type automatic compensation sander as set forth in claim 4, wherein: spacing box (44) of fixedly connected with on mount (21), spacing groove (441) have been seted up along its length direction to one side of spacing box (44) towards abrasive band (24), the one side of abrasive band (24) that adjustable shelf (42) kept away from extends to in spacing box (44) from spacing groove (441), be provided with buffer spring (442) in spacing box (44), buffer spring's (442) one end sets firmly on adjustable shelf (42), the other end sets firmly connecting block (443), connecting block (443) are located spacing box (44), the one end rotation that buffer spring (442) were kept away from in connecting block (443) is connected with the screw thread post, the screw thread post passes spacing box (44) and with spacing box (44) threaded connection.

7. A floating type automatic compensation sander as set forth in claim 4, wherein:

a material pumping cover (47) is arranged on the fixed frame (21), a material pumping pipe (471) is fixedly arranged at the top of the material pumping cover (47), and an air extracting device is arranged in the material pumping pipe (471);

an air injection pipe (48) is arranged below the material pumping cover (47), the air injection pipe (48) is located above the steel wire brush (41), a plurality of spray heads (481) are arranged on the air injection pipe (48) along the length direction of the air injection pipe, an air inlet pipe (482) is arranged at one end of the air injection pipe (48) in an extending mode, and the air inlet pipe (482) is connected with an external air source.

8. A floating type automatic compensation sander as set forth in claim 7, wherein:

the both ends of jet-propelled pipe (48) are connected with locating lever (483) jointly, and the both ends of jet-propelled pipe (48) are rotated and are connected on locating lever (483), and the one end of keeping away from intake pipe (482) of jet-propelled pipe (48) extends locating lever (483) and has set firmly handle (485), and threaded connection has positioning bolt on locating lever (483).

9. A floating type automatic compensation sander as set forth in claim 8, wherein: the positioning rod (483) is hinged with a swing rod (484), one end of the swing rod (484), which is far away from the positioning rod (483), is hinged with the outer side wall of the material pumping cover (47), and the fixed frame (21) is provided with a power assembly (49) for driving the air injection pipe (48) to horizontally swing.

10. A floating type automatic compensation sander as set forth in claim 9, wherein: the power assembly (49) comprises a power motor (491) fixedly arranged on the fixed frame (21), an output shaft of the power motor (491) is fixedly provided with a first connecting rod (492), one end, far away from the power motor (491), of the first connecting rod (492) is hinged to a second connecting rod (492), and one end, far away from the first connecting rod (492), of the second connecting rod (492) is fixedly connected to the positioning rod (483).