Pre-coated veneer surface scratch repairing device and method

Abstract

The invention relates to the technical field of furniture processing, in particular to a pre-coating veneer surface scratch repairing device which comprises a workbench and a conveyor, the conveyor is fixedly connected to the upper surface of the workbench, and a polishing mechanism is fixedly connected to the middle of the upper surface of the workbench; the polishing mechanism comprises a support fixedly connected to the middle of the upper surface of the workbench, fixing discs are installed on the left inner wall and the right inner wall of the support correspondingly, the outer walls of the fixing discs are sleeved with rotatable circular rings, and an outer gear ring is installed on the side wall of the circular ring located on the right side. Three first rotating shafts are installed on the outer wall of the circular ring located on the left side in the circumferential direction through bearings, and first straight gears and polishing rollers are installed at the left ends and the right ends of the first rotating shafts correspondingly. Selective polishing can be conducted according to the hardness, density and scratch depth of plates, damage to the plates is reduced, different thicknesses of the plates of the same specification are prevented, the quality of formed furniture is guaranteed, the polishing roller cleaning function is achieved, the polishing stability of the polishing roller is guaranteed, and scratch repairing is more uniform.

Description

Technical Field

[0001] The invention relates to the technical field of furniture processing, and in particular to a device and method for repairing scratches on the surface of pre-coated veneer. Background Art

[0002] The board obtained by the planer along the log is called the sliced ​​board, and the relatively thin one is also called veneer. As the basis for making furniture, it is inevitable that the surface of the board will be scratched during the processing and transportation process, and then it needs to be re-polished.

[0003] When using a polishing machine to repair and polish scratches on a board, the boards can only be polished uniformly, and selective polishing cannot be performed according to the hardness, density, and scratch depth of the wood species, resulting in the polished board being inconsistent in thickness compared to the same type of board, affecting the quality of the formed furniture. In addition, some of the wood chips generated during polishing will splash into the polishing roller. If they are not cleaned in time, the friction force of the polishing roller on the board will change, and uneven polishing is likely to occur. Based on the above problems, a device for repairing and polishing scratches on a veneer surface is proposed. Summary of the invention

[0004] In order to overcome the shortcomings of the prior art that selective polishing cannot be performed according to the quality of the scratched board and the scratch depth, and the polishing roller is contaminated by sawdust, which affects the polishing effect, the present invention provides a device and method for repairing scratches on the surface of pre-coated veneer.

[0005] To achieve the above object, the present invention provides the following technical solution: a pre-coated veneer surface scratch repair device, comprising a workbench and a conveyor, the conveyor is fixedly connected to the upper surface of the workbench, and a polishing mechanism is fixedly connected to the middle of the upper surface of the workbench; The polishing mechanism comprises a bracket fixedly connected to the middle part of the upper surface of the workbench, the left and right inner walls of the bracket are both equipped with fixed disks, the outer wall of the fixed disk is sleeved with a rotatable ring, the side wall of the ring located on the right is equipped with an external gear ring, the outer wall of the ring located on the left is equipped with three first rotating shafts through bearings along the circumferential direction, the left and right ends of the first rotating shaft are respectively equipped with a first spur gear and a polishing roller, the right end of the polishing roller is connected to the ring located on the right through a bearing, the polishing roller rotates and rubs against the plate to polish the surface of the plate, a cleaning component is horizontally installed on the inner side of the fixed disk, and wood chips on the polishing roller are cleaned by the cleaning component, a switching component is installed on the top of the right wall of the bracket, a first motor is installed on the bottom of the left wall of the bracket, and a second spur gear meshing with the first spur gear is installed on the output end of the first motor; The polishing roller can switch positions through the rotation of the circular ring without affecting the transmission of the first spur gear and the second spur gear.

[0006] Preferably, the friction coefficients of the three polishing rollers are different.

[0007] Preferably, the cleaning assembly comprises an outer cover installed laterally on the inner side of the fixed plate, a sliding rod is installed laterally on the inner cavity of the outer cover, a sliding seat that can slide left and right is sleeved on the outer wall of the sliding rod, a sliding groove is opened in the middle part of the upper surface of the sliding seat along the front-back direction, a blocking rod in contact with the polishing roller is installed laterally on the bottom of the sliding seat, the polishing roller is moved by the blocking rod to let the wood chips hidden in the polishing roller fall off, a second motor is installed at the center position of the upper surface of the outer cover, one end of a cam is installed at the output end of the second motor, and a lever connected with the inner cavity of the sliding groove is installed at the other end of the cam, a dust suction pipe is installed laterally on the front and rear sides of the inner cavity of the outer cover, the wood chips are sucked away by the dust suction pipe, one end of the dust collecting pipe is installed on the top of the dust suction pipe, the other end of the dust collecting pipe extends out of the right side wall of the bracket and is externally connected to a dust suction fan, and the dust suction fan makes the dust suction pipe have suction force; When the lever makes a circular motion, the slide seat is pulled to move left and right by the lever, so that the stopper repeatedly hits the polishing roller, so that the wood chips in the polishing roller are loosened, so that the dust suction pipe can suck away the wood chips in the polishing roller.

[0008] Preferably, the baffle rod is wavy in shape.

[0009] Preferably, the length of the slide groove is greater than the diameter of the circular track along which the second motor drives the lever to rotate.

[0010] Preferably, the switching assembly includes a support seat installed on the top of the right side wall of the bracket, a second rotating shaft is transversely installed at the bottom of the support seat through a bearing, a third spur gear and a crank are respectively installed at the left and right ends of the second rotating shaft, and the third spur gear is meshed and connected with the outer gear ring, when the crank is rotated, the ring can be rotated under the transmission condition of the third spur gear and the outer gear ring, a positioning plate that can slide up and down is inserted on the top of the support seat, and a slot is opened at the bottom of the positioning plate, and the crank is positioned when the crank is inserted into the inner cavity of the slot; Through the transmission of the third spur gear and the outer gear ring, the ring is rotated in units of 120 degrees to switch the polishing rollers, and selective polishing is performed according to the density, type and scratch depth of the different plates.

[0011] Preferably, the gear ratio between the third spur gear and the outer gear ring is 1:3.

[0012] Preferably, the bottom opening of the slot extends outward.

[0013] A method for repairing scratches on a pre-coated veneer surface comprises the following steps: Step 1: The plate is conveyed from front to back by a conveyor, the first motor drives the second spur gear to rotate, and the polishing roller rotates under the transmission condition of the second spur gear and the first spur gear, and the polishing roller polishes the surface of the plate to repair the scratches on the surface of the plate; Step 2: The lever is driven by the second motor to make a circular motion. When the lever slides back and forth in the slide groove, the lever pulls the slide seat to swing left and right along the outer wall of the slide rod, thereby causing the stopper to swing left and right. The stopper structure is used to move the polishing roller to loosen the wood chips hidden in the polishing roller. The dust suction pipe sucks away the wood chips and dust in the polishing roller to ensure the polishing effect of the polishing roller on the wood board. Step three, lift the positioning plate, move the slot away from the crank, release the positioning of the crank, drive the third spur gear to rotate one circle through the crank, and under the transmission condition of the third spur gear and the outer gear ring, let the ring rotate 120 degrees to switch the position of the polishing roller. When the positioning plate moves downward, the slot controls the crank to stop, and the polishing roller is switched, which is suitable for polishing wood boards of different materials.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention controls the crank to drive the third spur gear to rotate one circle, which can make the outer gear ring rotate 120 degrees, so that the ring drives the polishing roller to complete a switch, and selects polishing rollers with different friction coefficients. Therefore, it can selectively polish according to the hardness, density and scratch depth of the plate, reduce plate damage, prevent different thicknesses of plates with the same specifications, and ensure the quality of formed furniture; 2. The present invention drives the lever to make circular motion through the second motor. When the lever slides back and forth in the slide groove, the lever pulls the slide seat to swing left and right, so that the uneven barrier rod hits the polishing roller, loosens the wood chips on the polishing roller, and the dust suction pipe sucks away the wood chips hidden in the polishing roller. It has the function of cleaning the polishing roller, ensures the stability of the polishing roller during polishing, and makes the scratch repair more uniform. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 It is a schematic diagram of the polishing mechanism structure; Figure 3 It is the front cross-sectional view of the polishing mechanism; Figure 4 A cross-sectional view of the main view of the cleaning assembly; Figure 5 for Figure 4 Enlarged view of point A in the middle; Figure 6 It is a schematic diagram of the slide structure; Figure 7 Toggle component exploded view; Figure 8 This is a front view cross-section of the switching component.

[0016] In the figure: 1, workbench; 2, conveyor; 3, polishing mechanism; 31, bracket; 32, fixed disk; 33, ring; 34, external gear ring; 35, first rotating shaft; 36, first spur gear; 37, polishing roller; 38, cleaning component; 39, switching component; 310, first motor; 311, second spur gear; 381, outer cover; 382, slide bar; 383, slide seat; 384, chute; 385, stop bar; 386, second motor; 387, cam; 388, lever; 389, dust suction pipe; 3810, dust collecting pipe; 391, support base; 392, second rotating shaft; 393, third spur gear; 394, crank; 395, positioning plate; 396, slot. Detailed implementation mode

[0017] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0018] The present invention provides a technical solution: a device for repairing scratches on the surface of pre-coated veneer, as Figures 1 - 8 shown, including a workbench 1 and a conveyor 2. The conveyor 2 is fixedly connected to the upper surface of the workbench 1, and a polishing mechanism 3 is fixedly connected to the middle of the upper surface of the workbench 1; The polishing mechanism 3 includes a bracket 31 fixedly connected to the middle of the upper surface of the workbench 1. Fixed disks 32 are installed on the left and right inner walls of the bracket 31. A rotatable ring 33 is sleeved on the outer wall of the fixed disk 32. An external gear ring 34 is installed on the side wall of the ring 33 on the right. Three first rotating shafts 35 are installed on the outer wall of the ring 33 on the left along the circumference through bearings. First spur gears 36 and polishing rollers 37 are installed at the left and right ends of the first rotating shaft 35 respectively. The right end of the polishing roller 37 is connected to the ring 33 on the right through a bearing. The rotation of the polishing roller 37 rubs against the plate to polish the surface of the plate. The friction coefficients of the three polishing rollers 37 are different, and the polishing roller 37 with the corresponding friction coefficient can be selected according to the quality of the plate for polishing treatment to prevent damage to the plate. A cleaning component 38 is installed horizontally inside the fixed disk 32 to clean the wood chips on the polishing roller 37. A switching component 39 is installed at the top of the right side wall of the bracket 31, and a first motor 310 is installed at the bottom of the left side wall of the bracket 31. A second spur gear 311 meshing with the first spur gear 36 is installed at the output end of the first motor 310.

[0019] As a preferred solution, further, the cleaning component 38 includes an outer cover 381 horizontally installed inside the fixed disk 32. A slide bar 382 is horizontally installed in the inner cavity of the outer cover 381. A slide seat 383 capable of sliding left and right is sleeved on the outer wall of the slide bar 382. A chute 384 is opened in the middle of the upper surface of the slide seat 383 in the front-rear direction. A stop bar 385 in contact with the polishing roller 37 is horizontally installed at the bottom of the slide seat 383. The shape of the stop bar 385 is wavy. When the stop bar 385 moves left and right, it can impact the polishing roller 37 to loosen the wood chips hidden in the polishing roller 37 and make the wood chips hidden in the polishing roller 37 fall off. A second motor 386 is installed at the center position of the upper surface of the outer cover 381. One end of a cam 387 is installed at the output end of the second motor 386. The other end of the cam 387 is installed with a lever 388 inserted into the inner cavity of the chute 384. The length of the chute 384 is greater than the diameter of the circular track for the lever 388 driven by the second motor 386 to rotate, so that the lever 388 has enough space for movement in the chute 384 to prevent interference with the circular motion of the lever 388. Dust suction pipes 389 are horizontally installed on the front and rear sides of the inner cavity of the outer cover 381. The wood chips are sucked away through the dust suction pipes 389. One end of a dust collecting pipe 3810 is installed at the top of the dust suction pipe 389. The other end of the dust collecting pipe 3810 extends out of the right side wall of the bracket 31 and is externally connected to a dust suction fan, so that the dust suction pipe 389 has suction force through the dust suction fan.

[0020] As a preferred solution, further, the switching component 39 includes a support seat 391 installed at the top of the right side wall of the bracket 31. A second rotating shaft 392 is horizontally installed at the bottom of the support seat 391 through a bearing. A third straight gear 393 and a crank 394 are respectively installed at the left and right ends of the second rotating shaft 392. The third straight gear 393 is meshed and connected with the external tooth ring 34. The tooth number ratio of the third straight gear 393 to the external tooth ring 34 is 1:3. When the third straight gear 393 rotates one week, the external tooth ring 34 drives the ring 33 to rotate 120 degrees, which is convenient for the staff to control the switching of the polishing roller 37. When the crank 394 is rotated, the ring 33 can be rotated under the transmission condition of the third straight gear 393 and the external tooth ring 34. A positioning plate 395 capable of sliding up and down is inserted into the top of the support seat 391. A slot 396 is opened at the bottom of the positioning plate 395. When the crank 394 is inserted into the inner cavity of the slot 396, the crank 394 is positioned. The bottom opening of the slot 396 extends outward, which is convenient for the slot 396 to be sleeved on the crank 394.

[0021] A method for a pre-coated veneer surface scratch repair device includes the following steps: Step 1, the conveyor 2 conveys the board from front to back. The first motor 310 drives the second straight gear 311 to rotate. Under the transmission condition of the second straight gear 311 and the first straight gear 36, the polishing roller 37 rotates, and the polishing roller 37 polishes the surface of the board to repair the scratches on the surface of the board; Step 2: The lever 388 is driven to make a circular motion by the second motor 386. When the lever 388 slides back and forth in the slide groove 384, the lever 388 pulls the slide seat 383 to swing left and right along the outer wall of the slide rod 382, ​​thereby causing the stopper 385 to swing left and right. The stopper 385 is used to move the polishing roller 37 to loosen the wood chips hidden in the polishing roller 37. The dust suction pipe 389 sucks away the wood chips and dust in the polishing roller 37 to ensure the polishing effect of the polishing roller 37 on the wood board. Step three, lift the positioning plate 395, move the slot 396 away from the crank 394, release the positioning of the crank 394, drive the third spur gear 393 to rotate one circle through the crank 394, and under the transmission condition of the third spur gear 393 and the outer gear ring 34, let the ring 33 rotate 120 degrees to switch the position of the polishing roller 37. When the positioning plate 395 moves downward, the slot 396 controls the crank 394 to stop, thereby realizing the switching of the polishing roller 37, which is suitable for polishing wood boards of different materials.

[0022] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for repairing scratches on the surface of pre-coated veneer, comprising a workbench (1) and a conveyor (2), wherein the conveyor (2) is fixedly connected to the upper surface of the workbench (1), characterized in that: A polishing mechanism (3) is fixedly connected to the middle of the upper surface of the workbench (1); The polishing mechanism (3) comprises a bracket (31) fixedly connected to the middle part of the upper surface of the workbench (1), the left and right inner walls of the bracket (31) are both mounted with fixed disks (32), the outer wall of the fixed disk (32) is sleeved with a rotatable ring (33), the side wall of the ring (33) located on the right side is mounted with an external gear ring (34), the outer wall of the ring (33) located on the left side is mounted with three first rotating shafts (35) through bearings along the circumferential direction, the left and right ends of the first rotating shaft (35) are respectively mounted with a first spur gear (36) and a polishing roller (37), the polishing roller (33) 7) The right end is connected to the circular ring (33) located on the right side through a bearing, and the polishing roller (37) rotates to rub against the plate to polish the surface of the plate. A cleaning component (38) is installed laterally on the inner side of the fixed plate (32), and wood chips on the polishing roller (37) are cleaned by the cleaning component (38). A switching component (39) is installed on the top of the right side wall of the bracket (31), and a first motor (310) is installed on the bottom of the left side wall of the bracket (31). The output end of the first motor (310) is installed with a second spur gear (311) meshing with the first spur gear (36).

2. A pre-coated veneer surface scratch repair device according to claim 1, characterized in that: The friction coefficients of the three polishing rollers (37) are different.

3. A pre-coated veneer surface scratch repair device according to claim 2, characterized in that: The cleaning assembly (38) comprises an outer cover (381) installed transversely on the inner side of the fixed plate (32); a slide rod (382) is installed transversely in the inner cavity of the outer cover (381); a slide seat (383) capable of sliding left and right is sleeved on the outer wall of the slide rod (382); a slide groove (384) is provided in the middle of the upper surface of the slide seat (383) along the front-back direction; a stop rod (385) in contact with the polishing roller (37) is installed transversely at the bottom of the slide seat (383); the polishing roller (37) is moved by the stop rod (385) to allow wood chips hidden in the polishing roller (37) to fall off; and the upper surface of the outer cover (381) is provided with a sliding groove (384) in the middle of the upper surface of the slide seat (383) along the front-back direction. A second motor (386) is installed at the center of the surface, one end of a cam (387) is installed at the output end of the second motor (386), and a lever (388) plugged into the inner cavity of the slide groove (384) is installed at the other end of the cam (387). Dust suction pipes (389) are installed horizontally on the front and rear sides of the inner cavity of the outer cover (381), and wood chips are sucked away through the dust suction pipes (389). One end of a dust collecting pipe (3810) is installed at the top of the dust suction pipe (389), and the other end of the dust collecting pipe (3810) extends out of the right side wall of the bracket (31) and is externally connected to a dust suction fan, so that the dust suction pipe (389) has suction force.

4. A pre-coated veneer surface scratch repair device according to claim 3, characterized in that: The blocking rod (385) is wavy in shape.

5. A pre-coated veneer surface scratch repairing device according to claim 4, characterized in that: The length of the slide groove (384) is greater than the diameter of the circular track along which the second motor (386) drives the lever (388) to rotate.

6. A pre-coated veneer surface scratch repair device according to claim 5, characterized in that: The switching assembly (39) comprises a support seat (391) mounted on the top of the right side wall of the bracket (31); a second rotating shaft (392) is transversely mounted on the bottom of the support seat (391) via a bearing; a third spur gear (393) and a crank (394) are respectively mounted on the left and right ends of the second rotating shaft (392); the third spur gear (393) is meshingly connected with the outer gear ring (34); when the crank (394) is rotated, the ring (33) can be rotated under the transmission condition of the third spur gear (393) and the outer gear ring (34); a positioning plate (395) capable of sliding up and down is inserted on the top of the support seat (391); a slot (396) is provided at the bottom of the positioning plate (395); when the crank (394) is inserted into the inner cavity of the slot (396), the crank (394) is positioned.

7. A pre-coated veneer surface scratch repairing device according to claim 6, characterized in that: The gear ratio between the third spur gear (393) and the outer gear ring (34) is 1:

3.

8. The device for repairing scratches on the surface of pre-coated veneer according to claim 7, characterized in that: The bottom opening of the slot (396) extends outward.

9. A method for repairing scratches on the surface of pre-coated veneer, which is applied to a device for repairing scratches on the surface of pre-coated veneer as claimed in claim 8, characterized in that: The following steps are involved: Step 1: The plate is conveyed from front to back by a conveyor (2), the first motor (310) drives the second spur gear (311) to rotate, and the polishing roller (37) rotates under the transmission condition of the second spur gear (311) and the first spur gear (36), and the polishing roller (37) polishes the surface of the plate to repair scratches on the surface of the plate; Step 2: The lever (388) is driven to make a circular motion by the second motor (386). While the lever (388) slides back and forth in the slide groove (384), the lever (388) pulls the slide seat (383) to swing left and right along the outer wall of the slide rod (382), thereby causing the stopper (385) to swing left and right. The stopper (385) is used to move the polishing roller (37) to loosen the wood chips hidden in the polishing roller (37). The dust suction pipe (389) sucks away the wood chips and dust in the polishing roller (37), thereby ensuring the polishing effect of the polishing roller (37) on the wood board; Step three, lift the positioning plate (395), move the slot (396) away from the crank (394), release the positioning of the crank (394), drive the third spur gear (393) to rotate one circle through the crank (394), and under the transmission condition of the third spur gear (393) and the outer gear ring (34), let the ring (33) rotate 120 degrees to switch the position of the polishing roller (37). When the positioning plate (395) moves downward, the slot (396) controls the crank (394) to stop, so as to realize the switching of the polishing roller (37), which is suitable for polishing wood boards of different materials.

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