A semi-finished furniture cleaning device

Abstract

The invention discloses a furniture semi-finished product cleaning device, belonging to the field of furniture semi-finished product cleaning, the device comprises a bracket, a cleaning box is connected to the bracket, an N-shaped frame is arranged at the feeding port of the cleaning box, a round rod is connected to the top of the N-shaped frame, a plurality of gear rings arranged in a linear array are rotatably connected to the round rod, the plurality of gear rings are all connected to swing plates, the top of the N-shaped frame is slidably connected to a rack meshed with the gear ring, and the cleaning box is provided with sliding holes matched with the plurality of racks; a roller brush and a disc brush are vertically slidably connected in the cleaning box, the semi-finished furniture to be cleaned enters the cleaning box from the lower part of the N-shaped frame, the semi-finished furniture to be cleaned pushes the plurality of swing plates to swing, and when the swing angles of the plurality of swing plates are equal, the roller brush moves downward, and when the swing angles of the plurality of swing plates are unequal, the disc brush moves downward; the invention can automatically identify the shape, and for regular rectangular plate-shaped and arc-shaped furniture semi-finished products, the roller brush and the disc brush are respectively used for cleaning to ensure the cleaning effect.

Description

Technical Field

[0001] The invention relates to the technical field of furniture semi-finished product cleaning, in particular to a furniture semi-finished product cleaning device. Background Art

[0002] In the furniture manufacturing industry, the cleaning of semi-finished furniture is a crucial link. After the semi-finished furniture has gone through the processing procedures such as cutting and molding, a large amount of impurities such as sawdust, dust and possible stains will remain on its surface. If these impurities are not cleaned up in time, they will have an adverse effect on subsequent processing procedures, such as mortise and tenon joints and surface coating. For example, sawdust remaining in the mortise and tenon structure may cause loose connections and affect the overall structural strength of the furniture; dust mixed in the coating material will cause defects on the paint surface and reduce the appearance quality of the furniture.

[0003] Traditional methods of cleaning semi-finished furniture often rely on manual operations, which are difficult to ensure cleaning effects and cleaning consistency. Therefore, there are devices in the prior art that automatically clean semi-finished furniture panels. The existing cleaning equipment is not easily applicable to the cleaning of flat regular panels and curved panels at the same time. The cleaning effect for flat regular panels can meet expectations, but when cleaning curved panels, it is easy to leave dead corners for cleaning, resulting in incomplete cleaning. Summary of the invention

[0004] The purpose of the present invention is to provide a furniture semi-finished product cleaning device, which solves the problem that the existing device is not easy to be applied to the cleaning of flat regular plates and curved plates at the same time.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a furniture semi-finished product cleaning device comprises a bracket, a cleaning box is connected to the bracket, an N-shaped frame is arranged at the feed port of the cleaning box, a round rod is connected to the top of the N-shaped frame, a plurality of gear rings arranged in a linear array are rotatably connected to the round rod, a plurality of gear rings are connected to a swing plate, a rack meshing with the gear ring is slidably connected to the top of the N-shaped frame, and a sliding hole matching with the plurality of gear rings is opened on the cleaning box;

[0006] A roller brush and a disc brush are vertically slidably connected in the cleaning box. The semi-finished furniture to be cleaned enters the cleaning box from the lower part of the N-shaped frame. The semi-finished furniture to be cleaned pushes the multiple swing plates to swing, and when the swing angles of the multiple swing plates are equal, the roller brush moves downward, and when the swing angles of the multiple swing plates are unequal, the disc brush moves downward.

[0007] Preferably, the cleaning box is provided with a first cylinder for driving the roller brush to move vertically and a second cylinder for driving the disc brush to move vertically;

[0008] The cleaning box is provided with a plurality of position sensors for detecting the sliding distances of the plurality of racks. When the sliding distances of the plurality of racks are equal, the extension length of the first cylinder decreases with the sliding distances of the plurality of racks. When the sliding distances of the plurality of racks are unequal, the extension length of the second cylinder decreases with the increase of the average sliding distances of the plurality of racks.

[0009] Preferably, it also includes a conveying mechanism, the conveying mechanism includes a first conveyor belt and a second conveyor belt arranged on the bracket, the first conveyor belt is connected to the first roller, the second roller and the third roller, the second conveyor belt is connected to the fourth roller, the fifth roller and the sixth roller, the first roller and the fourth roller are both connected to the bracket in a fixed axis rotation, the second roller and the fifth roller are both horizontally slid on the bracket, and the third roller and the sixth roller are both vertically slid on the bracket;

[0010] When the first cylinder is extended, the gap between the first conveyor belt and the second conveyor belt is located at the lower part of the roller brush, and when the second cylinder is extended, the second roller and the fifth roller move in the same direction so that the gap between the first conveyor belt and the second conveyor belt is located at the lower part of the disc brush.

[0011] Preferably, two groups of pins are vertically slidably connected to the bracket, the bottom ends of the two groups of pins are fixedly connected to a swivel seat, the third roller and the sixth roller rotate on the two swivel seats respectively, and a spring is sleeved on the pin, and the two ends of the spring are respectively against the bracket and the swivel seat.

[0012] Preferably, a third cylinder is connected to the bracket, and the third cylinder is located inside the annular track formed by the first conveyor belt. The output end of the third cylinder is connected to the first connecting seat, and the first connecting seat is connected to the second connecting seat. The second roller is rotatably connected to the first connecting seat, and the fifth roller is rotatably connected to the second connecting seat. When the third cylinder is extended or retracted, it can drive the gap between the first conveyor belt and the second conveyor belt to move to the lower part of the roller brush or the disc brush.

[0013] Preferably, the roller brushes and the disc brushes are each in two groups, and the two groups of the roller brushes and the disc brushes are symmetrically arranged in the vertical direction, and when the gap between the first conveyor belt and the second conveyor belt is located at the lower part of the upper roller brush, the lower roller brush moves up so that the upper quadrant point of the lower roller brush is in the same plane as the first conveyor belt and the second conveyor belt, and when the gap between the first conveyor belt and the second conveyor belt is located at the lower part of the upper disc brush, the lower disc brush moves up so that the bristles of the lower disc brush are located above the plane of the first conveyor belt and the second conveyor belt.

[0014] Preferably, a fourth cylinder and a fifth cylinder are connected to the bracket, the output ends of the first cylinder and the fourth cylinder are connected to a first mounting seat, the output ends of the second cylinder and the fifth cylinder are connected to a second mounting seat, the two groups of roller brushes are respectively rotatably connected to the first mounting seat, and the two groups of disc brushes are respectively rotatably connected to the second mounting seat.

[0015] Preferably, an electric push rod is connected between the first connecting seat and the second connecting seat, and when the electric push rod is extended or retracted, the gap between the first conveyor belt and the second conveyor belt is expanded or reduced;

[0016] The N-shaped frame is provided with a plurality of pressure-sensitive switches corresponding to the plurality of racks. When any of the pressure-sensitive switches is pressed by the rack, the electric push rod starts to extend from the shortest state. When none of the pressure-sensitive switches is pressed by the rack, the electric push rod stops extending.

[0017] Preferably, a vertical plate is provided on the first connecting seat, and two cylindrical air nozzles are vertically symmetrically provided on the vertical plate. The cylindrical air nozzles are connected to an external air compressor through an air duct, and the semi-finished furniture to be cleaned passes between the two cylindrical air nozzles.

[0018] Preferably, two sleeves are symmetrically connected to the vertical plate, and through grooves are provided on the side walls of the two sleeves, and the two through grooves are arranged opposite to each other. The two cylindrical air nozzles are rotatably connected to the two sleeves respectively, and a plurality of circular air outlets and a plurality of fan-shaped air outlets are provided in a linear array on the side walls of the cylindrical air nozzle. A shift block is provided at the end of the cylindrical air nozzle, and two groups of baffles are symmetrically arranged in the cleaning box. When the third cylinder is shortened, one group of the baffles blocks the shift block to allow the cylindrical air nozzle to rotate, so that the plurality of circular air outlets are connected to the through grooves, and when the third cylinder is extended, the other group of the baffles blocks the shift block to allow the cylindrical air nozzle to rotate in the opposite direction, so that the plurality of fan-shaped air outlets are connected to the through grooves.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. The present invention arranges a swingable swing plate, a gear ring and a rack structure on an N-shaped frame at the feed port of the cleaning box. When the semi-finished furniture enters, its shape will cause the swing plate to swing differently. If it is a regular rectangular plate, the swing plate is pushed to swing at equal angles to move the roller brush downward, and the roller brush is fully in contact with the furniture surface to achieve cleaning. If it is an arc, the swing plate is pushed to swing at different angles to move the disc brush downward. A plurality of elliptical disc brushes with edges in contact with each other, connected by telescopic rods and fitted with the arc through universal joints can clean the arc-shaped semi-finished furniture without dead angles. Therefore, the problem that the traditional cleaning method is difficult to accurately clean the regular flat or arc-shaped semi-finished furniture panels is effectively solved, the cleaning efficiency and quality are improved, the subsequent processing problems and defective rate caused by poor cleaning are reduced, and the furniture manufacturing efficiency is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 is a cross-sectional view of the present invention;

[0023] Figure 3 It is a schematic diagram of the structure of the N-shaped frame of the present invention;

[0024] Figure 4 It is a structural schematic diagram of the gear ring of the present invention;

[0025] Figure 5 It is a structural schematic diagram of the third cylinder of the present invention;

[0026] Figure 6 It is a structural schematic diagram of the disc brush of the present invention;

[0027] Figure 7 It is a structural schematic diagram of the electric push rod of the present invention;

[0028] Figure 8 It is a schematic structural diagram of the cylindrical air nozzle of the present invention.

[0029] In the figure: 1, bracket; 11, N-shaped frame; 12, round rod; 13, swing plate; 14, gear ring; 15, rack; 2, cleaning box; 21, first cylinder; 22, first mounting seat; 23, roller brush; 24, second cylinder; 25, second mounting seat; 26, disc brush; 3, first conveyor belt; 301, second conveyor belt; 31, first rotating roller; 32, second rotating roller; 33, third rotating roller; 34, rotating seat; 35, Pin rod; 36, spring; 37, fourth roller; 38, fifth roller; 39, sixth roller; 4, third cylinder; 41, first connecting seat; 42, electric push rod; 43, second connecting seat; 44, fourth cylinder; 45, fifth cylinder; 5, vertical plate; 51, sleeve; 52, through groove; 53, cylindrical air nozzle; 531, circular air outlet; 532, fan-shaped air outlet; 54, air duct; 55, shift block; 56, baffle. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] Example, see Figure 1-Figure 8 The present embodiment provides a technical solution: a furniture semi-finished product cleaning device, comprising a bracket 1, a cleaning box 2 is connected to the bracket 1, an N-shaped frame 11 is arranged at the feed port of the cleaning box 2, a round rod 12 is connected to the top of the N-shaped frame 11, a plurality of gear rings 14 arranged in a linear array are rotatably connected to the round rod 12, a plurality of gear rings 14 are connected to swing plates 13, a rack 15 meshing with the gear ring 14 is slidably connected to the top of the N-shaped frame 11, and a sliding hole matching with the plurality of racks 15 is opened on the cleaning box 2; a roller brush 23 and a disc brush 26 are vertically slidably connected in the cleaning box 2, the semi-finished furniture to be cleaned enters the cleaning box 2 from the lower part of the N-shaped frame 11, the semi-finished furniture to be cleaned pushes the plurality of swing plates 13 to swing, and when the swing angles of the plurality of swing plates 13 are equal, the roller brush 23 moves downward, and, when the swing angles of the plurality of swing plates 13 are unequal, the disc brush 26 moves downward.

[0032] When cleaning the semi-finished furniture, the semi-finished furniture is sent into the cleaning box 2 through the lower part of the N-shaped frame 11. When the semi-finished furniture passes through the lower part of the N-shaped frame 11, the semi-finished furniture pushes the swing plate 13 in the N-shaped frame 11, so that the swing plate 13 swings. When the semi-finished furniture is a regular rectangular plate, the regular semi-finished furniture can push multiple swing plates 13 to swing at equal angles, so that multiple corresponding gear rings 14 rotate at equal angles, and the racks 15 slide at the same distance at this time, so that the roller brush 23 moves down to clean the regular semi-finished furniture. At this time, the roller brush 23 can completely contact the surface of the regular semi-finished furniture to clean;

[0033] When the semi-finished furniture is arc-shaped, such as a headboard, the arc-shaped semi-finished furniture has different surface heights, so the swing angles of the multiple swing plates 13 pushed by the semi-finished furniture are not equal, so that the swing angles of the multiple corresponding gear rings 14 are not equal, and then the sliding distances of the rack 15 are not equal, so that the disc brush 26 moves down to clean the arc-shaped semi-finished furniture;

[0034] The roller brush 23 and the disc brush 26 are driven to rotate by an external motor. A plurality of disc brushes 26 are provided. The output shafts of the motors for driving the plurality of disc brushes 26 are composed of a telescopic rod. The telescopic rod can only be extended and retracted, and the two sections thereof will not rotate relative to each other. The tube and the rod constituting the telescopic rod are connected by a key sliding connection to ensure that the plurality of disc brushes 26 can contact the curved surface of the curved furniture semi-finished plate. The disc brush 26 is connected to the end of the telescopic rod by a universal joint to ensure the fit between the disc brush 26 and the curved furniture semi-finished product.

[0035] The disc brush 26 is elliptical in shape, and the edges of the plurality of disc brushes 26 are in contact with each other, ensuring that the contact portions of the plurality of disc brushes 26 do not leave dead angles when cleaning the semi-finished furniture products. Compared with a regular circular setting, setting the disc brush 26 in an elliptical shape can ensure that dirt such as wood chips or dust will not remain in the areas between the plurality of disc brushes 26.

[0036] The cleaning box 2 is provided with a first cylinder 21 for driving the roller brush 23 to move vertically and a second cylinder 24 for driving the disc brush 26 to move vertically; the cleaning box 2 is provided with a plurality of position sensors for detecting the sliding distances of the plurality of racks 15, when the sliding distances of the plurality of racks 15 are equal, the extension length of the first cylinder 21 decreases with the sliding distances of the plurality of racks 15, and, when the sliding distances of the plurality of racks 15 are unequal, the extension length of the second cylinder 24 decreases with the increase of the average sliding distance of the plurality of racks 15.

[0037] When the multiple racks 15 slide, the position sensor arranged on the cleaning box 2 detects the sliding distance of the multiple racks 15 that slide. If the sliding distances of the multiple racks 15 are equal, it means that the semi-finished furniture board is of a regular shape, and the first cylinder 21 is extended at this time. If the sliding distances of the multiple racks 15 are not equal, it means that the semi-finished furniture board is of an arc shape, and the second cylinder 24 is extended at this time.

[0038] In addition, if the swing angles of the swing plate 13 are large and equal, it means that the thickness of the semi-finished furniture sheet is high. At this time, the first cylinder 21 is still extended, but the extension distance will not be too much, ensuring that the roller brush 23 can contact the upper surface of the semi-finished furniture sheet, and thus will not block the movement of the semi-finished furniture. When the swing angles of the swing plate 13 are not equal, the extension distance of the second cylinder 24 is determined according to the average sliding distance of multiple racks 15. When the average value is large, the extension length of the second cylinder 24 will not be too high. When the average value is small, the extension length of the second cylinder 24 increases adaptability.

[0039] Moreover, when the sliding distances of the multiple racks 15 are not equal, the extension timing of the second cylinder 24 is delayed to prevent the disc brush 26 from blocking the semi-finished furniture. The second cylinder 24 will only extend when the semi-finished furniture just runs to the lower part of the disc brush 26. At this time, the multiple disc brushes 26 move down and contact the arc-shaped semi-finished furniture, and the multiple telescopic rods connected to the multiple disc brushes 26 are blocked by the arc-shaped semi-finished furniture and are adaptively shortened, ensuring that the multiple disc brushes 26 can contact the semi-finished furniture.

[0040] It also includes a conveying mechanism, which includes a first conveyor belt 3 and a second conveyor belt 301 arranged on the bracket 1, the first conveyor belt 3 is connected to the first roller 31, the second roller 32 and the third roller 33, the second conveyor belt 301 is connected to the fourth roller 37, the fifth roller 38 and the sixth roller 39, the first roller 31 and the fourth roller 37 are both connected to the bracket 1 for fixed-axis rotation, the second roller 32 and the fifth roller 38 are both horizontally slid on the bracket 1, and the third roller 33 and the sixth roller 39 are both vertically slid on the bracket 1; when the first cylinder 21 is extended, the gap between the first conveyor belt 3 and the second conveyor belt 301 is located at the lower part of the roller brush 23, and when the second cylinder 24 is extended, the second roller 32 and the fifth roller 38 move in the same direction, so that the gap between the first conveyor belt 3 and the second conveyor belt 301 is located at the lower part of the disc brush 26.

[0041] When the surface of the semi-finished furniture is flat, the first cylinder 21 extends, and the roller brush 23 cleans the semi-finished furniture. At this time, the gap between the first conveyor belt 3 and the second conveyor belt 301 is at the bottom of the roller brush 23. If the surface of the semi-finished furniture is arc-shaped, the second roller 32 and the fifth roller 38 move synchronously and in the same direction, so that the gap between the first conveyor belt 3 and the second conveyor belt 301 is at the bottom of the roller brush 23. At this time, the third roller 33 moves up and the sixth roller 39 moves down, so that the first conveyor belt 3 and the second conveyor belt 301 are always in a taut state.

[0042] Two groups of pins 35 are vertically slidably connected to the bracket 1, and the bottom ends of the two groups of pins 35 are fixedly connected to the swivel seat 34. The third roller 33 and the sixth roller 39 rotate on the two swivel seats 34 respectively. A spring 36 is sleeved on the pin 35, and the two ends of the spring 36 are respectively against the bracket 1 and the swivel seat 34.

[0043] The third roller 33 and the sixth roller 39 are respectively connected to the two rotating seats 34. When the first roller 31 and the second roller 32 move away from each other, the first conveyor belt 3 is tightened, so that the third roller 33 is lifted vertically upward, thereby compressing the corresponding spring 36. When the first roller 31 and the second roller 32 approach each other, the first conveyor belt 3 tends to relax. At this time, the spring 36 corresponding to the third roller 33 elastically recovers to move the third roller 33 downward, ensuring that the first conveyor belt 3 is tightened. The operating principles of the fourth roller 37, the fifth roller 38 and the sixth roller 39 are the same as above, ensuring that when the spacing space between the first conveyor belt 3 and the second conveyor belt 301 moves, the first conveyor belt 3 and the second conveyor belt 301 can be in a tightened state.

[0044] The bracket 1 is connected to a third cylinder 4, which is located inside the annular track formed by the first conveyor belt 3. The output end of the third cylinder 4 is connected to a first connecting seat 41, and the first connecting seat 41 is connected to a second connecting seat 43. The second roller 32 is rotatably connected to the first connecting seat 41, and the fifth roller 38 is rotatably connected to the second connecting seat 43. When the third cylinder 4 is extended or retracted, it can drive the gap between the first conveyor belt 3 and the second conveyor belt 301 to move to the lower part of the roller brush 23 or the disc brush 26.

[0045] When the third cylinder 4 is extended or retracted, it can drive the first connecting seat 41 and the second connecting seat 43 to move synchronously, so that the second roller 32 and the fifth roller 38 move synchronously, and then the gap space between the first conveyor belt 3 and the second conveyor belt 301 moves. In the initial state, the gap space between the first conveyor belt 3 and the second conveyor belt 301 is at the roller brush 23. At this time, the third cylinder 4 is in a shortened state. When semi-finished furniture is fed in and the swing angles of multiple swing plates 13 are equal, the third cylinder 4 does not extend. If semi-finished furniture is fed in and the swing angles of multiple swing plates 13 are not equal, the third cylinder 4 extends, so that the gap space between the first conveyor belt 3 and the second conveyor belt 301 moves to the disc brush 26.

[0046] There are two groups of roller brushes 23 and disc brushes 26, and the two groups of roller brushes 23 and disc brushes 26 are symmetrically arranged in the vertical direction. When the gap between the first conveyor belt 3 and the second conveyor belt 301 is located below the upper roller brush 23, the lower roller brush 23 moves up so that the upper quadrant point of the lower roller brush 23 is in the same plane as the first conveyor belt 3 and the second conveyor belt 301, and when the gap between the first conveyor belt 3 and the second conveyor belt 301 is located below the upper disc brush 26, the lower disc brush 26 moves up so that the bristles of the lower disc brush 26 are located above the plane of the first conveyor belt 3 and the second conveyor belt 301.

[0047] By arranging two groups of roller brushes 23 and disc brushes 26, both sides of the semi-finished furniture can be cleaned. If the swing plates 13 swing and the swing angles are equal, the third cylinder 4 does not extend, and at the same time, the lower roller brush 23 rises to its upper quadrant point on the same plane as the first conveyor belt 3 and the second conveyor belt 301, ensuring that the lower roller brush 23 can clean the lower surface of the semi-finished furniture.

[0048] If multiple swing plates 13 swing and the swing distances are different, the third cylinder 4 extends, and while the second cylinder 24 extends, the lower disc brush 26 rises to the upper part of the plane of the first conveyor belt 3 and the second conveyor belt 301, and an elastic spring is provided on the telescopic rod connected to the lower disc brush 26. The elastic spring is located inside the telescopic rod to support the telescopic rod so that the telescopic rod is in an extended state when the disc brush 26 is not obstructed, and when the disc brush 26 contacts the lower surface of the semi-finished furniture, the telescopic rod is obstructed and shortened, thereby ensuring that the multiple disc brushes 26 can adaptively fit on the lower surface of the semi-finished furniture for cleaning.

[0049] The bracket 1 is connected to a fourth cylinder 44 and a fifth cylinder 45, the output ends of the first cylinder 21 and the fourth cylinder 44 are connected to the first mounting seat 22, the output ends of the second cylinder 24 and the fifth cylinder 45 are connected to the second mounting seat 25, two groups of roller brushes 23 are rotatably connected to the first mounting seat 22, and two groups of disc brushes 26 are rotatably connected to the second mounting seat 25.

[0050] The fourth cylinder 44 extends after the plurality of swing plates 13 swing and the swing distances are equal, thereby driving the lower roller brush 23 to rise, and the fifth cylinder 45 extends synchronously with the second cylinder 24 to ensure that the two sets of disc brushes 26 will not hinder the movement of the semi-finished furniture.

[0051] An electric push rod 42 is connected between the first connecting seat 41 and the second connecting seat 43. When the electric push rod 42 is extended or retracted, the gap between the first conveyor belt 3 and the second conveyor belt 301 is expanded or reduced. A plurality of pressure-sensitive switches corresponding to the plurality of racks 15 are arranged on the N-shaped frame 11. When any pressure-sensitive switch is pressed by the rack 15, the electric push rod 42 starts to extend from the shortest state. When none of the plurality of pressure-sensitive switches is pressed by the rack 15, the electric push rod 42 stops extending.

[0052] The semi-finished furniture is driven by the first conveyor belt 3 and passes through the lower part of the N-shaped frame 11 at a uniform speed. If the swing plate 13 is in the swinging state for a long time, it means that the length of the semi-finished furniture is long. At this time, the rack 15 maintains the sliding state for a long time, so that the rack 15 presses the corresponding pressure-sensitive switch for a long time. At this time, the pressed pressure-sensitive switch controls the electric push rod 42 to slowly extend, so that the distance between the second roller 32 and the fifth roller 38 is increased, that is, the gap between the first conveyor belt 3 and the second conveyor belt 301 is widened to a high degree, ensuring that the wood chips and other debris cleaned from the lower surface of the semi-finished furniture can fall smoothly;

[0053] If the swing plate 13 is in a short swinging state, it means that the length of the semi-finished furniture is short. At this time, the rack 15 presses the corresponding pressure-sensitive switch for a short time, so that the electric push rod 42 is extended for a short time. At this time, the distance between the second roller 32 and the fifth roller 38 is close, and the gap between the first conveyor belt 3 and the second conveyor belt 301 is widened to a low degree, thereby preventing the semi-finished furniture from falling from the gap or being tilted and stuck in the gap.

[0054] The pressure-sensitive switch can be arranged on the N-shaped frame 11 by means of an elastic sliding connection, so as to ensure that the pressure-sensitive switch can move together with the rack 15 when it slides and applies pressure to the pressure-sensitive switch, thereby avoiding interference in the sliding of the rack 15. In addition, the pressure-sensitive switch can also be replaced by a position sensor, which can be located on the cleaning box 2 as mentioned above, or can be separately arranged on the N-shaped frame 11. The position sensor detects the sliding distance of the rack 15 or the time to maintain the sliding state to control the extension of the electric push rod 42.

[0055] A vertical plate 5 is disposed on the first connecting seat 41 , and two cylindrical air nozzles 53 are vertically symmetrically disposed on the vertical plate 5 . The cylindrical air nozzles 53 are connected to an external air compressor through an air duct 54 , and the semi-finished furniture to be cleaned passes between the two cylindrical air nozzles 53 .

[0056] The vertical plate 5 moves synchronously with the movement of the gap between the first conveyor belt 3 and the second conveyor belt 301, and the semi-finished furniture passes through between the two cylindrical air nozzles 53, so that while the semi-finished furniture is being cleaned by the roller brush 23 or the disc brush 26, the air duct 54 simultaneously blows air to the semi-finished furniture to blow away wood chips, etc., thereby improving the cleaning effect.

[0057] Two sleeves 51 are symmetrically connected to the vertical plate 5, and through grooves 52 are provided on the side walls of the two sleeves 51. The two through grooves 52 are arranged opposite to each other. Two cylindrical air nozzles 53 are rotatably connected to the two sleeves 51 respectively. A plurality of circular air outlets 531 and a plurality of fan-shaped air outlets 532 are arranged in a linear array on the side walls of the cylindrical air nozzle 53. A shift block 55 is provided at the end of the cylindrical air nozzle 53. Two groups of baffles 56 are symmetrically arranged in the cleaning box 2. When the third cylinder 4 is shortened, one group of baffles 56 blocks the shift block 55 to make the cylindrical air nozzle 53 rotate, so that the plurality of circular air outlets 531 are connected with the through grooves 52. When the third cylinder 4 is extended, the other group of baffles 56 blocks the shift block 55 to make the cylindrical air nozzle 53 rotate in the opposite direction, so that the plurality of fan-shaped air outlets 532 are connected with the through grooves 52.

[0058] When the semi-finished furniture product passing through the two columnar air nozzles 53 is a straight wooden board, the third cylinder 4 does not extend. At this time, the blocking bar 56 close to the third cylinder 4 blocks the shifting block 55 at the end of the columnar air nozzle 53, so that the multiple circular air ports 531 on the columnar air nozzle 53 are connected with the through slot 52, so that the circular air ports 531 blow out relatively concentrated and stable wind force, which can effectively blow up and blow away impurities from the surface of the wooden board, and will not cause the impurities to fall again near the wooden board due to excessive dispersion of the wind force;

[0059] When the semi-finished furniture product passing through the two columnar air nozzles 53 is a curved wooden board, the third air cylinder 4 is extended, and the columnar air nozzle 53 approaches the other baffle 56, so that the other baffle 56 blocks the shift block 55 to rotate the columnar air nozzle 53, so that the plurality of fan-shaped air ports 532 are connected with the through slot 52, so that the wind force of the fan-shaped air ports 532 is dispersed and reduced, so as to avoid the accumulation of impurities at the place where the curvature changes, and to avoid the local excessive wind force causing damage to the fragile parts of the wooden board (such as the inner side of the curvature), and adopt a relatively dispersed and gentle wind force, so that the airflow can flow along the curvature of the wooden board, take away the impurities in various parts, and ensure the cleaning effect of the curved semi-finished furniture wooden board;

[0060] When the semi-finished furniture wood boards are cleaned, all cylinders are retracted and the equipment returns to its initial state, preparing for the next cleaning of the semi-finished furniture wood boards.

[0061] 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 furniture semi-finished product cleaning device, comprising a support (1), the support (1) being connected to a cleaning box (2), characterized in that: An N-shaped frame (11) is provided at the feed inlet of the cleaning box (2); a round rod (12) is connected to the top of the N-shaped frame (11); a plurality of toothed rings (14) arranged in a linear array are rotatably connected to the round rod (12); a plurality of toothed rings (14) are all connected to a swing plate (13); a rack (15) meshing with the toothed ring (14) is slidably connected to the top of the N-shaped frame (11); and a sliding hole cooperating with the plurality of toothed rings (15) is provided on the cleaning box (2); A roller brush (23) and a disc brush (26) are vertically slidably connected in the cleaning box (2); the semi-finished furniture to be cleaned enters the cleaning box (2) from the lower part of the N-shaped frame (11); the semi-finished furniture to be cleaned pushes the plurality of swing plates (13) to swing; and when the swing angles of the plurality of swing plates (13) are equal, the roller brush (23) moves downward; and when the swing angles of the plurality of swing plates (13) are unequal, the disc brush (26) moves downward.

2. The semi-finished furniture cleaning device according to claim 1, characterized in that: The cleaning box (2) is provided with a first cylinder (21) for driving the roller brush (23) to move vertically and a second cylinder (24) for driving the disc brush (26) to move vertically; The cleaning box (2) is provided with a plurality of position sensors for detecting the sliding distances of the plurality of racks (15); when the sliding distances of the plurality of racks (15) are equal, the extension length of the first cylinder (21) decreases with the sliding distances of the plurality of racks (15); and, when the sliding distances of the plurality of racks (15) are unequal, the extension length of the second cylinder (24) decreases with the increase of the average sliding distance of the plurality of racks (15).

3. The semi-finished furniture cleaning device according to claim 2, characterized in that: It also comprises a conveying mechanism, the conveying mechanism comprising a first conveyor belt (3) and a second conveyor belt (301) which are arranged on the support (1), the first conveyor belt (3) being transmission-connected with a first roller (31), a second roller (32) and a third roller (33), the second conveyor belt (301) being transmission-connected with a fourth roller (37), a fifth roller (38) and a sixth roller (39), the first roller (31) and the fourth roller (37) being rotationally connected to the support (1) with fixed axes, the second roller (32) and the fifth roller (38) being horizontally slidable on the support (1), and the third roller (33) and the sixth roller (39) being vertically slidable on the support (1); When the first air cylinder (21) is extended, the gap between the first conveyor belt (3) and the second conveyor belt (301) is located below the roller brush (23); and when the second air cylinder (24) is extended, the second roller (32) and the fifth roller (38) move in the same direction so that the gap between the first conveyor belt (3) and the second conveyor belt (301) is located below the disc brush (26).

4. The semi-finished furniture cleaning device according to claim 3, characterized in that: Two groups of pins (35) are vertically slidably connected to the bracket (1), and the bottom ends of the two groups of pins (35) are fixedly connected to a rotating seat (34). The third rotating roller (33) and the sixth rotating roller (39) rotate on the two rotating seats (34) respectively. A spring (36) is sleeved on the pin (35), and two ends of the spring (36) are respectively against the bracket (1) and the rotating seat (34).

5. The semi-finished furniture cleaning device according to claim 4, characterized in that: The bracket (1) is connected to a third cylinder (4), the third cylinder (4) is located inside the annular track formed by the first conveyor belt (3), the output end of the third cylinder (4) is connected to a first connecting seat (41), the first connecting seat (41) is connected to a second connecting seat (43), the second rotating roller (32) is rotatably connected to the first connecting seat (41), the fifth rotating roller (38) is rotatably connected to the second connecting seat (43), and the third cylinder (4) can drive the gap between the first conveyor belt (3) and the second conveyor belt (301) to move to the lower part of the roller brush (23) or the disc brush (26) when the third cylinder (4) is extended or retracted.

6. The semi-finished furniture cleaning device according to claim 5, characterized in that: The roller brush (23) and the disc brush (26) are each provided in two groups, and the two groups of the roller brush (23) and the disc brush (26) are symmetrically arranged in the vertical direction; when the gap between the first conveyor belt (3) and the second conveyor belt (301) is located below the upper roller brush (23), the lower roller brush (23) moves upward so that the upper quadrant point of the lower roller brush (23) is located in the same plane as the first conveyor belt (3) and the second conveyor belt (301); and when the gap between the first conveyor belt (3) and the second conveyor belt (301) is located below the upper disc brush (26), the lower disc brush (26) moves upward so that the bristles of the lower disc brush (26) are located above the plane of the first conveyor belt (3) and the second conveyor belt (301).

7. The semi-finished furniture cleaning device according to claim 6, characterized in that: The bracket (1) is connected to a fourth cylinder (44) and a fifth cylinder (45); the output ends of the first cylinder (21) and the fourth cylinder (44) are both connected to a first mounting seat (22); the output ends of the second cylinder (24) and the fifth cylinder (45) are both connected to a second mounting seat (25); the two groups of roller brushes (23) are respectively rotatably connected to the first mounting seat (22); and the two groups of disc brushes (26) are respectively rotatably connected to the second mounting seat (25).

8. The semi-finished furniture cleaning device according to claim 7, characterized in that: An electric push rod (42) is connected between the first connecting seat (41) and the second connecting seat (43), and when the electric push rod (42) is extended or retracted, the gap between the first conveyor belt (3) and the second conveyor belt (301) is expanded or reduced; The N-shaped frame (11) is provided with a plurality of pressure-sensitive switches corresponding to the plurality of racks (15); when any of the pressure-sensitive switches is pressed by the rack (15), the electric push rod (42) starts to extend from a shortest state; and when none of the plurality of pressure-sensitive switches is pressed by the rack (15), the electric push rod (42) stops extending.

9. The semi-finished furniture cleaning device according to claim 8, characterized in that: The first connecting seat (41) is provided with a vertical plate (5), and two cylindrical air nozzles (53) are vertically symmetrically provided on the vertical plate (5); the cylindrical air nozzles (53) are connected to an external air compressor via an air duct (54), and the semi-finished furniture to be cleaned passes between the two cylindrical air nozzles (53).

10. The semi-finished furniture cleaning device according to claim 9, characterized in that: Two sleeves (51) are symmetrically connected to the vertical plate (5), and through grooves (52) are provided on the side walls of the two sleeves (51). The two through grooves (52) are arranged opposite to each other. The two columnar air nozzles (53) are rotatably connected to the two sleeves (51) respectively. The side walls of the columnar air nozzles (53) are provided with a plurality of circular air outlets (531) and a plurality of fan-shaped air outlets (532) in a linear array. A shifting block (55) is provided at the end of the columnar air nozzle (53). The cleaning box (2) is symmetrically arranged in a plurality of circular air outlets (531) and a plurality of fan-shaped air outlets (532). Two groups of baffles (56) are provided. When the third cylinder (4) is shortened, one group of the baffles (56) blocks the shift block (55) so that the columnar air nozzle (53) rotates, thereby the plurality of circular air ports (531) are connected to the through slot (52). When the third cylinder (4) is extended, the other group of the baffles (56) blocks the shift block (55) so that the columnar air nozzle (53) rotates in the opposite direction, thereby the plurality of fan-shaped air ports (532) are connected to the through slot (52).

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