Lower roller brush cleaning process for floor forming

Abstract

The application discloses a lower roller brush type cleaning process for floor forming, which comprises the following steps: S1, forming a brushing layer by a roller brush; and S2, curing the brushing layer. According to the application, the dirt and stains on the surface of the base plate are removed by twice cleaning, the brushing layer with resin is formed, the brushing layer is combined with the 180-degree reversing transfer of the base plate, the brushing layer is dried and air-dried in sequence, and the required resin curing layer is automatically formed; in the subsequent glue applying process, the amount of the applied glue can be reduced, the characteristics of the resin curing layer are more beneficial to the gluing of the skin layer and the co-extruded plate, and thus the peel strength of the skin layer is greatly improved.

Description

[0001] This application is a divisional application of the application filed on July 31, 2018, with application number 201810859169.0, entitled "Automatic Cleaning Equipment for Lower Roller Brush for Floor Molding". Technical Field

[0002] This invention belongs to the field of flooring production equipment, and specifically relates to a lower roller brush cleaning process for flooring molding. Background Technology

[0003] In recent years, solid wood flooring and engineered wood flooring have been widely used as floor decoration materials in interior decoration. However, solid wood flooring suffers from a shortage of high-quality timber and low timber utilization. To meet consumer demand, laminate flooring and composite flooring have emerged. However, during use, the adhesives used in the lamination process release many harmful substances (such as formaldehyde), seriously affecting people's health. Therefore, a new type of environmentally friendly wood-plastic composite product has gradually emerged. In the production of high-density fiberboard, lignin is produced and added to recycled plastics through granulation equipment to form a wood-plastic composite material. This material is then extruded to form a co-extruded board. Finally, a veneer (decorative layer) is applied to the surface of the co-extruded board to complete the composite flooring process.

[0004] However, in actual use, the surface layer (i.e., the decorative pattern layer) of the co-extruded board is not firmly bonded to the co-extruded board, which makes it more prone to peeling or warping. As a result, the quality of the flooring cannot be recognized by consumers, and it is difficult to open up the sales market for this type of flooring.

[0005] To overcome the problem of weak adhesion, the applicant discovered that cleaning the bonding surfaces during gluing is crucial. Ordinary cleaning methods merely remove impurities from the bonding surfaces to ensure uniform adhesive application and thus improve bond strength. However, the peel strength of the produced products still rarely meets usage requirements. Therefore, this application improves the cleaning process by mixing a colorless, volatile liquid with resin in a specific ratio to create a cleaning solution. This solution not only cleans and removes impurities from the bonding surfaces but also forms a resin curing layer. Therefore, in subsequent adhesive application, it not only reduces the amount of adhesive needed but also promotes better bonding between the skin layer and the co-extruded board, thereby significantly improving the peel strength of the skin layer. Summary of the Invention

[0006] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a brand-new lower roller brush cleaning process for floor molding.

[0007] To solve the above technical problems, the present invention adopts the following technical solution:

[0008] A lower roller brush cleaning process for floor molding includes the following steps:

[0009] S1, Roller brush forms coating layer

[0010] First, the substrate surface is cleaned to remove impurities. Second, the substrate after the first cleaning is placed in a cleaning tank. Then, a brush roller located on the lower surface of the substrate rotates around its own axis to brush the cleaning solvent in the cleaning tank onto the lower surface of the substrate. In the second cleaning, a resin-containing coating layer is formed on the lower surface of the substrate.

[0011] S2, Curing of the coating layer

[0012] First, drying is performed. The drying section includes an oven and heating rollers installed inside the oven to heat the substrate. The oven includes a drying trough extending vertically, and a feed trough and a discharge trough extending horizontally on opposite sides of the drying trough. Feeding and discharging robots handle and transfer the substrate. During drying, the substrate with the coating layer is horizontally fed into the feed trough by the feeding robot, which then transfers the substrate from the feed trough to the drying trough. At this point, the substrate changes from a horizontal to a vertical position. Then, the drying process continues. The substrate is picked up by the unloading robot in the tank and separated from the feeding robot. Then the unloading robot transfers the substrate from the drying tank to the unloading tank. At this time, the substrate changes from a vertical state to a horizontal state and completes a 180° flip of the substrate coating layer. At this time, the coating layer on the upper surface of the substrate is dried. Next, it is air-dried. The air-drying section includes a wind box and an airflow assembly that forms convection in the wind box. During air-drying, the unloading robot moves the flipped substrate horizontally into the wind box, and the convection air further dries the substrate coating layer to form a cured resin layer.

[0013] Preferably, a first cleaning unit and a second cleaning unit are used in S1, wherein the first cleaning unit is used to remove impurities from the substrate surface, and the second cleaning unit includes a cleaning tank containing cleaning solvent and a brush roller located below the substrate and capable of brushing the lower surface of the substrate. The brush roller is rotatably disposed in the cleaning tank around its own axis, and the lower part of the brush roller is immersed in the cleaning solvent.

[0014] According to a specific embodiment and preferred aspect of the present invention, the first cleaning unit includes a positioning frame and a strip brush disposed on the positioning frame, wherein the extension direction of the strip brush intersects with the translation direction of the substrate, and the bristles of the strip brush remove debris from the surface of the substrate.

[0015] Preferably, the strip brushes are arranged in multiple groups, with two strip brushes in each group arranged symmetrically above and below each other, and they remove debris from the upper and lower surfaces of the substrate.

[0016] In some specific embodiments, there are multiple brush rollers, and the extension direction of each brush roller is perpendicular to and horizontally extended with respect to the translation direction of the substrate. The second cleaning unit also includes a pressure roller correspondingly disposed above the brush rollers. This ensures sufficient force during brushing, which is more conducive to surface cleaning.

[0017] According to another specific embodiment and preferred aspect of the present invention, a feeding track is formed between the feeding trough and the drying trough in S2, and the feeding robot moves back and forth along the feeding track between the feeding trough and the drying trough; a discharging track is formed between the discharging trough and the drying trough, and the discharging robot moves back and forth along the discharging track between the discharging trough and the drying trough. First, the roller brush surface of the substrate is turned from horizontal downward to vertical to the right, and then from vertical to the right to horizontal upward, to achieve a 180° flip of the substrate roller brush surface, which greatly facilitates subsequent substrate stacking or continuous coating processing.

[0018] Preferably, the feeding track and the discharging track are symmetrically arranged, and include a horizontally arranged horizontal section, a vertically arranged vertical section in the drying tank, and a curved section for connecting the horizontal and vertical sections. This structural design facilitates the transfer of the substrate in both horizontal and vertical directions. In some specific embodiments, by providing a lateral limiting port at the end of the horizontal section away from the curved section and a longitudinal limiting port at the lower end of the vertical section, the feeding robot and the discharging robot move on the corresponding feeding channel and discharging track via feeding trolleys and discharging trolleys, respectively. The feeding trolley and the discharging trolley move between the lateral limiting port and the longitudinal limiting port, respectively, allowing the substrate to switch between horizontal and vertical orientations.

[0019] According to another specific embodiment and preferred aspect of the invention, heating rollers are distributed between the sidewall of the drying tank and the feed and discharge tracks, extending along the width direction of the feed and discharge tracks. This provides a relatively even heating zone. Furthermore, foil is provided between the heating rollers and the sidewall of the drying tank to facilitate heat concentration, thereby improving the drying effect while reducing energy consumption. Further, foil is also provided at the bottom of the drying tank, and heating rollers are provided above the foil, wherein the heating rollers at the bottom and those located on the sides are arranged parallel to each other.

[0020] In addition, the airflow assembly includes an intake fan and an exhaust fan respectively disposed on opposite sides of the air box. With the intake fan and exhaust fan disposed, the substrate passing through the air box can quickly dissipate heat in the convective airflow so that the cleaning solvent on the substrate surface can form a cured resin layer.

[0021] In some specific embodiments, the discharge robot and the feed robot are adsorbed onto opposite sides of the substrate by negative pressure, and the substrate can be laterally transferred between the discharge robot and the feed robot within the drying tank. The feed robot's grippers hold opposite sides of the substrate, and the grippers are connected to the feed trolley via telescopic arms. Further, the grippers include slides mounted on the feed trolley that move towards each other along the width direction of the feed track, and telescopic gripping arms mounted on the slides and having notches that match the sides of the substrate. Preferably, the discharge robot is adsorbed onto opposite sides of the substrate where cleaning liquid is formed by a negative pressure adsorption head, and the negative pressure adsorption head is connected to the discharge trolley via a telescopic arm.

[0022] Due to the implementation of the above technical solutions, the present invention has the following advantages compared with the prior art:

[0023] In existing flooring molding processes, the surface layer and co-extruded board often have weak adhesion, leading to peeling or warping, which compromises the quality of the flooring and fails to meet consumer expectations. This invention addresses this issue with a cleaning process. First, the substrate surface undergoes a primary cleaning to remove impurities. Then, a cleaning solvent roller brushes the substrate's underside for a secondary cleaning, simultaneously forming a resin-containing coating. Next, a feeding robot transfers the substrate from the feeding trough to the drying trough, changing the substrate from a horizontal to a vertical position. Then, within the drying trough, a discharging robot picks up the substrate and removes it from the feeding robot. Finally, the discharging robot transfers the substrate from the drying trough to the discharging trough. The substrate is changed from a vertical to a horizontal position, completing a 180° flip. Then, a robotic arm moves the flipped substrate horizontally into a wind box, where convection air dries the surface layer coated with cleaning solution to form a cured resin layer. Therefore, compared with the prior art, this invention removes impurities from the substrate surface through two cleaning processes while forming a resin-coated coating layer. Combined with the 180° reversal and transfer of the coating layer along with the substrate, the coating layer is dried and air-dried sequentially, automatically forming the required cured resin layer. Furthermore, in the subsequent adhesive application process, it not only reduces the amount of adhesive applied but also facilitates the bonding between the skin layer and the co-extruded board, thereby greatly improving the peel strength of the skin layer. Attached Figure Description

[0024] Figure 1 This is a front view schematic diagram of the automated production equipment of the present invention;

[0025] Figure 2 This is a front view schematic diagram of the feeding unit of the present invention;

[0026] Figure 3 for Figure 2 A magnified view of a portion of the image;

[0027] Figure 4This is a front view schematic diagram of the brush roller cleaning mechanism of the present invention;

[0028] Figure 5 This is a front view schematic diagram of the drying unit of the present invention (when the feeding robot moves and feeds material to the discharging robot);

[0029] Figure 6 This is a front view schematic diagram of the drying unit of the present invention (when the unloading robot arm adsorbs the substrate);

[0030] Figure 7 This is a front view schematic diagram of the receiving unit of the present invention (when receiving the first substrate);

[0031] Figure 8 for Figure 7 Top view of the receiving unit (enlarged structure);

[0032] Figure 9 This is a front view schematic diagram of the receiving unit of the present invention (when multiple substrates are stacked).

[0033] The components are: A) Feeding unit; 1) Bearing platform; 2) Lifting mechanism; 20) Base; 21) Scissor-type support arm; 3) Pushing mechanism; 30) Positioning seat; 300) Positioning rod; 31) Pushing rod; 310) Push rod; 311) Limiting module; 311a) Gear groove; 32) Driving component; 32a) Transmission gear; 32b) Drive gear; 4) Counting mechanism; 40) Scale; 41) Pointer; 42) Intelligent controller; k) Contact switch; b) Base plate; A5) Grid plate.

[0034] B. Cleaning mechanism; B1. First cleaning unit; B10. Positioning frame; B11. Strip brush; B2. Second cleaning unit; B20. Cleaning tank; B23. Brush roller; B3. Pressure roller;

[0035] C. Receiving unit; C1. Receiving rack; C10. Base; C11. Upright; C2. Receiving platform; C3. Drive mechanism; C30. Scissor-type support arm; C4. Counting assembly; 5. Connecting mechanism; 50. Connecting frame; 50a. Positioning rail; 51. Connecting roller; 52. Extension rod; 53. Guide roller; 530. Bearing; 531. Roller body; 532. Anti-slip roller sleeve; 54. Guide rod;

[0036] D. Drying Unit; D1. Drying Section; D10. Oven; D100. Drying Tank; D101. Feeding Tank; D102. Discharge Tank; D11. Heating Roller; D2. Air Drying Section; D20. Air Box; D21. Airflow Assembly; D210. Inlet Fan; D211. Exhaust Fan; D3. Feeding Track; D30. Horizontal Section; D31. Vertical Section; D32. Bending Section; D33. Lateral Restriction Port; D34. Longitudinal Restriction Port; D4. Discharge Track; D5. Feeding Trolley; D6. Discharge Trolley; D7. Feeding Robot; D70. Chuck; D700. Slide; D701. Clamping Arm; D8. Discharge Robot; D80. Negative Pressure Adsorption Head; D9. Foil Sheet;

[0037] E, Conveying unit; E1, Transfer roller; Detailed Implementation

[0038] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0039] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0040] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0041] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0042] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0043] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0044] like Figure 1 As shown, the floor forming lower roller brush type automated cleaning equipment of this embodiment includes a feeding unit A, a brush roller type cleaning mechanism B, a receiving unit C, a drying unit D, and a conveying unit E.

[0045] Specifically, the feeding unit A, combined with the attached... Figure 2 and 3 As shown, the feeding unit A is used to horizontally push the stacked substrates b one by one to the brush roller cleaning mechanism B.

[0046] In this example, the feeding unit A includes a support platform 1 for placing the stacked substrate b, a lifting mechanism 2 for driving the support platform 1 to gradually rise, a pushing mechanism 3 disposed on one side of the support platform 1, and a counting mechanism 4 for counting the number of substrates b fed into the brush roller cleaning mechanism B. The lifting mechanism 2 lifts the substrates b at a height equal to the thickness of one substrate b each time, and the pushing mechanism 3 pushes the automatically replenished substrates b to the brush roller cleaning mechanism B.

[0047] Specifically, the lifting mechanism 2 includes a base 20, a scissor-type support arm 21 disposed between the base 20 and the support platform 1, and a drive assembly (not shown in the figure) for driving the scissor-type support arm 21 to relatively extend or retract. In short, the lifting mechanism 2 is equivalent to a scissor lift, and its working principle is exactly the same as that of a scissor lift, so it will not be described in detail here.

[0048] However, the projected area of ​​the support platform 1 on the base 20 in this application is smaller than the area of ​​the upper surface of the base 20.

[0049] The pushing mechanism 3 includes a positioning seat 30 positioned on the side of the bearing platform 1 away from the brush roller cleaning mechanism B, a pushing rod 31 that can move in the horizontal direction and is disposed on the positioning seat 30, and a driving member 32 that drives the pushing rod 31 to reciprocate. The pushing rod 31 is aligned with the brush roller cleaning mechanism B and pushes the automatically upward-filling substrate b toward the brush roller cleaning mechanism B piece by piece during the reciprocating motion.

[0050] To ensure effective ejection, in this example, a support plate A5 is provided on the side of the supporting platform 1, and the stacked substrate b abuts against the support plate A5 from one side. The support plate A5 can be one piece or two pieces.

[0051] Specifically, the grid plate A5 is located on opposite sides of the substrate b in the pushing direction. Under the action of the grid plate A5, the pushing of the substrate b is made more stable.

[0052] Meanwhile, the contact between the push rod 31 and the substrate b is also important. Too much or too little contact will affect the pushing of the substrate b. Then, the effective contact height is 0.5 to 1 times the thickness of the substrate, where the effective contact height is calculated downward from the top edge of the substrate.

[0053] In this example, the effective contact height between the pushing end of the pushing rod 31 and the substrate b is 0.6 times the thickness of the substrate. That is to say, the distance between the bottom of the pushing rod 31 and the next substrate b is 0.4 times the thickness of the substrate b.

[0054] Specifically, the positioning seat 30 includes a positioning rod 300 that aligns with the center of the laminated substrate, and a push rod 31 that is movably positioned at the location of the positioning rod 300 aligned with the brush roller cleaning mechanism B.

[0055] The push rod 31 includes a push rod 310 extending in a horizontal direction and limiting modules 311 disposed at both ends of the push rod 310. When the drive member 32 contacts any of the limiting modules 311, the drive member 32 moves in the opposite direction to realize the reciprocating motion of the push rod 31.

[0056] The drive member 32 includes a transmission tooth 32a formed on the upper part of the push rod 310 along the length direction of the push rod 310, and a drive gear 32b disposed on the positioning rod 300 and meshing with the transmission tooth 32a.

[0057] In this example, there are two drive gears 32b, which are respectively located on opposite sides of the positioning rod 300. Therefore, under the synchronous drive of the two drive gears, the reciprocating speed of the push rod 310 is effectively increased, and the movement of the push rod 310 is also made smoother.

[0058] As for the transmission method, a drive motor is provided on the positioning rod 300, and then the drive motor and the drive gear 32b are synchronously connected by a belt drive. The drive motor is located at the top of the drive gear 32b, and the center of the drive gear 32b and the center of the output end of the drive motor form an equilateral triangle. At the same time, the drive motor has forward and reverse rotation modes.

[0059] Meanwhile, a toothed groove 311a is provided inside the limiting module 311 to cooperate with the drive gear 32b. When the drive gear 32b meshes with one of the toothed grooves 311a, the drive motor rotates in the opposite direction to achieve reciprocating motion.

[0060] Then, considering the space occupied, the top rod 310 is designed as a multi-section spliced ​​and connected to form a horizontally positioned rod, with the limiting module 311 located at both ends of the rod. The purpose of this multi-section design is mainly to reduce the space occupied by the top rod by its own rotation when not in operation.

[0061] The counting mechanism 4 includes a scale 40 formed on the positioning rod 300 with the thickness of each substrate b as one unit, and a pointer 41 set on the side of the support platform 1 corresponding to the positioning rod 300 and pointing to the scale. The number of feed blocks is obtained by subtracting the reference value from the value indicated by the pointer, which is very convenient to operate.

[0062] Furthermore, the scale 40 can be detachably positioned on the positioning rod 300 and can be adjusted up and down along the height of the positioning rod 300. When processing substrates of different thicknesses, simply replacing the corresponding scale 400 will enable counting of the substrate.

[0063] Meanwhile, the counting mechanism 4 also includes an intelligent controller 42 connected to the lifting mechanism 2. The intelligent controller 42 includes contact switches k respectively located at the upper and lower limits of the scale 40. When the pointer 41 contacts the contact switch at the upper or lower limit of the scale 40, a closed circuit is formed, and the lifting mechanism stops moving. In short, when the pointer contacts the upper limit contact switch, the lifting mechanism stops its upward movement; when the pointer contacts the lower limit contact switch, the lifting mechanism stops its downward movement.

[0064] Combined with appendix Figure 4 As shown, in this example, the brush roller cleaning mechanism B includes a first cleaning unit B1 for removing impurities from the surface of the substrate b, and a second cleaning unit B2 that docks with the first cleaning unit B1 and cleans the adhesive surface of the substrate b using a cleaning solvent.

[0065] The first cleaning unit B1 includes a positioning frame B10 and a strip brush B11 disposed on the positioning frame B10. The extension direction of the strip brush B11 intersects with the translation direction of the substrate b, and the bristles of the strip brush B11 remove debris from the surface of the substrate b.

[0066] Multiple sets of strip brushes B11 are formed, with two strip brushes B11 symmetrically arranged in each set, and they remove debris from the upper and lower surfaces of the substrate b. The strip brushes B11 are also purchased directly from an external supplier, and their specific structure will not be described again here.

[0067] The second cleaning unit B2 includes a cleaning tank B20 containing cleaning solvent and a brush roller B23 located below the substrate b which is driven by translation and capable of brushing the lower surface of the substrate b. The brush roller B23 is rotatably disposed in the cleaning tank B20 about its own axis, and the lower part of the brush roller B23 is immersed in the cleaning solvent.

[0068] In this example, there are multiple brush rollers B23, and the extension direction of each brush roller B23 is perpendicular to the translation direction of the substrate b and extends horizontally. The second cleaning unit B2 also includes a pressure roller B24 correspondingly disposed above the brush rollers to ensure the force during brushing, which is more conducive to surface cleaning.

[0069] As for the structure of the brush roller B23, it was purchased directly by the applicant and is a conventional product, so its specific structure will not be described in detail here.

[0070] Furthermore, in this example, the cleaning mechanism also includes a conveyor roller B3 disposed flush with the inlet and outlet ends of the second cleaning unit B2. The substrate is transferred through the contact of the conveyor roller B3.

[0071] In short, after the initial removal of impurities from the substrate surface by brushing in this application, the substrate surface is then cleaned by two brush rollers with cleaning liquid to ensure that there are no impurities on the substrate surface and to form a cleaning solvent layer (containing resin and colorless volatile liquid). After drying, a cured resin layer is formed, which facilitates the subsequent bonding of the skin layer and improves the peel strength of the skin layer.

[0072] Combined with appendix Figure 5 and Figure 6As shown, the drying unit D for floor cleaning in this embodiment includes: a drying section D1, which includes an oven D10 and a heating roller D11 disposed in the oven D10 and heating the substrate b; and an air drying section D2, which includes a wind box D20 and an airflow assembly D21 that forms convection in the wind box D20.

[0073] The drying oven D10 includes a drying trough D100 extending vertically, a feeding trough D101 and a discharging trough D102 extending horizontally on opposite sides of the drying trough D100. The drying unit D also includes a feeding track D3 for connecting the feeding trough D101 and the drying trough D100, a discharging track D4 for connecting the discharging trough D102 and the drying trough D100, a feeding trolley D5 and a discharging trolley D6 that slide reciprocally on the feeding track D3 and the discharging track D4 respectively, and a feeding robot D7 and a discharging robot D8 respectively mounted on the feeding trolley D5 and the discharging trolley D6. When the feeding robot D7 moves to the drying trough D100, it can push the substrate it has gripped toward the discharging robot D8. After the discharging robot D8 grips the substrate, it moves toward the discharging trough D102 to horizontally transfer the substrate toward the air box D20.

[0074] The feeding track D3 and the discharging track D4 are symmetrically arranged, and each includes a horizontal section D30, a vertical section D31, and a curved section D32 for connecting the horizontal section D30 and the vertical section D31. The track arrangement allows the substrate to switch between horizontal and vertical states. In this application, by symmetrically arranging the feeding and discharging tracks, the substrate's brush surface is first rotated from horizontal downward to vertical to right, and then from vertical to right to horizontal upward, achieving a 180° rotation of the substrate's brush surface. This greatly facilitates subsequent substrate stacking or continuous bonding processes.

[0075] Specifically, a lateral limiting port D33 is provided at the end of the horizontal section D30 away from the curved section D32, and a longitudinal limiting port D34 is provided at the lower end of the vertical section D31. When the feeding trolley D5 moves to the position of the lateral limiting port D33, the feeding robot D7 picks up the substrate and moves it along the feeding track D3 into the drying tank D100 until it moves to the position of the longitudinal limiting port D34, at which point the substrate changes from a horizontal state to a vertical state. Then, the unloading robot D7 picks up the substrate and moves it along the unloading track D4 into the unloading trough D102 until it moves to the position of the lateral limiting port D33 in the unloading trough D102, at which point the substrate changes from a vertical state to a horizontal state. The 180° flip of the substrate is completed, allowing the surface of the substrate coated with cleaning liquid to be moved upwards into the air box.

[0076] In this example, the gripper D70 of the feeding robot D7 is clamped on opposite sides of the substrate, and the gripper D70 is connected to the feeding trolley D5 via a telescopic arm.

[0077] Specifically, the chuck D70 includes a slide D700 mounted on a feed trolley D5 that moves in opposite directions along the width of the feed track D3, and a telescopic chuck D701 mounted on the slide D700 and having a notch that matches the side of the substrate.

[0078] The unloading robot D8 is attached to the opposite side of the substrate where the cleaning liquid is formed by the negative pressure adsorption head D80, and the negative pressure adsorption head D80 is connected to the unloading trolley D6 by the telescopic support arm.

[0079] Heating rollers D11 are distributed between the side wall of drying tank D100 and the feed guide rail D3 and the discharge track D4, and are arranged to extend along the width direction of the feed guide rail D3 and the discharge track D4.

[0080] In this example, a foil D9 is also provided between the heating roller D11 and the side wall of the drying trough D100. This facilitates the concentration of heat energy, thereby improving the drying effect while reducing energy consumption.

[0081] Furthermore, a foil D9 is provided at the bottom of the drying tank D100, and a heating roller D11 is provided above the foil D9, wherein the heating roller D11 at the bottom and the heating roller D11 located on the side are arranged parallel to each other.

[0082] Furthermore, the airflow assembly D21 includes an intake fan D210 and an exhaust fan D211 respectively disposed on opposite sides of the air box D20. The arrangement of the intake fan D210 and exhaust fan D211 allows the substrate passing through the air box D20 to dissipate heat rapidly in the convective airflow, which is more conducive to the formation of the cured resin layer.

[0083] Then, regarding the conveying unit E, which mainly includes the E1 moving roller or pressing roller for receiving the substrate b in the above-mentioned units, it is also a conventional arrangement and will not be described in detail here.

[0084] Combined with appendix Figures 7 to 9 As shown, in this example, the receiving unit collects the substrate b that has been transferred from the drying unit D by stacking.

[0085] Specifically, the receiving unit includes a receiving rack C1, a receiving platform C2 for carrying substrate b, a drive mechanism C3 mounted on the receiving rack C1 for driving the receiving platform C2 to gradually descend, a counting component C4 for counting the number of substrate b stacks, and a connecting mechanism 5 mounted on the receiving rack C1 for connecting to the substrate b that is transferred out from the drying unit D, wherein the height of each descent of the drive mechanism C3 is equal to the thickness of one substrate b.

[0086] In this example, the drying unit D is located on the right and the receiving unit is located on the left. The substrate b is moved from the right to the left along the length of the substrate b to perform stacking and receiving. After each substrate b is collected, the receiving platform C2 descends once until multiple substrates b are stacked.

[0087] However, the neatness of the stacking is entirely determined by the performance of the connecting mechanism 5. In this example, the following technical means were adopted to achieve a high degree of neatness in the stacking.

[0088] The connecting mechanism 5 includes a connecting frame 50 positioned on the receiving rack C1 and having a positioning grid 50a, a connecting roller 51 located in front of the positioning grid 50a and used to push the substrate b, which is transferred out of the drying unit D, toward the positioning grid 50a, and a driving member (not shown in the figure) that drives the connecting roller 51 to rotate. The positioning grid 50a is located above the left side of the receiving platform C2. When the side of the substrate b abuts against the positioning grid 50a, the connecting roller 51 stops moving, and the driving mechanism C3 drives the receiving platform C2 to descend once.

[0089] To further explain the above structure and principle, in this example, the substrate b is rectangular and is translated upwards along the length direction towards the receiving platform C2, and the positioning gate 50a extends along the width direction of the substrate b.

[0090] Meanwhile, the extension direction of the connecting roller 51 is consistent with that of the positioning grid 50a.

[0091] Then, the bottom surface of the positioning grid 50a is set parallel to the upper surface of the receiving platform C2, and the vertical distance between the bottom surface of the positioning grid 50a and the upper surface of the receiving platform C2 is an integer multiple of the thickness of the substrate b.

[0092] When the first substrate is collected, the bottom surface of the positioning gate is attached to the upper surface of the receiving platform to form a first notch, and the first substrate is positioned from the side in the first notch; when the second substrate is collected, the positioning gate and the first substrate form a second notch, and the second substrate is positioned from the side in the second notch. When the Nth substrate is collected, the positioning gate and the top substrate of the stacked substrate form the Nth notch, and the Nth substrate is positioned from the side in the Nth notch.

[0093] In this example, the positioning grid 50a serves two purposes: first, it acts as a reference, ensuring that multiple stacked substrates are aligned with the side where the positioning grid is located; second, it provides a certain degree of limitation and guidance when the receiving platform descends, reducing substrate offset during the descent process.

[0094] Meanwhile, considering the potential displacement of substrate b during translation, which could affect the neatness of the laminated substrate, the connecting mechanism 5 in this example also includes extension rods 52 extending horizontally from both ends of the connecting frame 50 towards the drying unit, and guide rollers 53 mounted on the extension rods 52 and rotating about a vertical axis. The guide rollers 53 are suspended above the sides of the receiving platform C2. When substrate b is conveyed to the connecting rollers 51, the guide rollers 53 on both sides roll and engage with the opposite sides of substrate b. By setting the guide rollers 53 on both sides, the displacement of substrate b during movement is limited, thereby improving the neatness of the laminated substrate.

[0095] Specifically, there are two receiving rollers 53 on each side extension rod 52, and the roller surfaces of the receiving rollers 53 on the same side that contact the side of the substrate b are flush.

[0096] As for the layout of the two receiving rollers 53, it is very simple. The two receiving rollers 53 on both sides can be arranged symmetrically or staggered.

[0097] In this example, the receiving rollers 53 on both sides are symmetrically arranged, and the receiving rollers 53 are suspended on the inner side of the extension rod 52 by the receiving rod 54. The receiving rollers 53 include a roller body 531 rotatably arranged at the lower part of the receiving rod 54 via a bearing 530, and an anti-slip roller sleeve 532 sleeved on the outer periphery of the roller body 531.

[0098] The receiving rack C1 includes a base 10, a column 11 located on one side of the drying unit of the base 10, and a connecting frame 50 positioned on the column 11 aligned with the discharge port of the drying unit D. The connecting frame 50 is adjustable and movable along the height of the column 11.

[0099] The counting component C4 includes a scale 40 formed on the column 11 with the thickness of each substrate b as one unit, and a pointer 41 set on the side of the receiving platform C2 corresponding to the column and pointing to the scale 40.

[0100] The scale 40 can be detachably positioned on the column 11 and can also be adjusted up and down along the height of the column 11. When processing substrates b of different thicknesses, simply replace the corresponding scale 40 to achieve counting for that substrate.

[0101] Furthermore, the counting component C4 also includes an intelligent controller 42 connected to the drive mechanism C3. The intelligent controller 42 includes contact switches k respectively positioned at the upper and lower limits of the scale 40. When the pointer 41 contacts the contact switch k at either the upper or lower limit of the scale 40, a closed circuit is formed, and the drive mechanism C3 stops moving. In short, when the pointer 41 contacts the upper limit contact switch k, the drive mechanism C3 stops its upward movement; when the pointer 41 contacts the lower limit contact switch k, the drive mechanism C3 stops its downward movement.

[0102] Furthermore, the drive mechanism C3 includes a scissor-type support arm C30 and a hydraulic cylinder (not shown in the figure) that drives the scissor-type support arm C30 to extend or retract. The specific principle is similar to that of an elevator (or lifting platform). It can not only descend but also lift. In this field, it is a conventional design and will not be described in detail here.

[0103] In summary, the lower roller brush cleaning process for floor molding in this embodiment includes the following steps:

[0104] S1, Roller brush forms coating layer

[0105] First, the substrate surface is cleaned to remove impurities. Second, the substrate after the first cleaning is placed in a cleaning tank. Then, a brush roller located on the lower surface of the substrate rotates around its own axis to brush the cleaning solvent in the cleaning tank onto the lower surface of the substrate. In the second cleaning, a resin-containing coating layer is formed on the lower surface of the substrate.

[0106] S2, Curing of the coating layer

[0107] First, drying is performed. The drying section includes an oven and heating rollers installed inside the oven to heat the substrate. The oven includes a drying trough extending vertically, and a feed trough and a discharge trough extending horizontally on opposite sides of the drying trough. Feeding and discharging robots handle and transfer the substrate. During drying, the substrate with the coating layer is horizontally fed into the feed trough by the feeding robot, which then transfers the substrate from the feed trough to the drying trough. At this point, the substrate changes from a horizontal to a vertical position. Then, the drying process continues. The substrate is picked up by the unloading robot in the tank and separated from the feeding robot. Then the unloading robot transfers the substrate from the drying tank to the unloading tank. At this time, the substrate changes from a vertical state to a horizontal state and completes a 180° flip of the substrate coating layer. At this time, the coating layer on the upper surface of the substrate is dried. Next, it is air-dried. The air-drying section includes a wind box and an airflow assembly that forms convection in the wind box. During air-drying, the unloading robot moves the flipped substrate horizontally into the wind box, and the convection air further dries the substrate coating layer to form a cured resin layer.

[0108] Therefore, after adopting the above cleaning process, the substrate surface is first cleaned to remove impurities. Then, a cleaning solvent roller is used to brush the substrate surface to form a secondary cleaning, simultaneously forming a resin-containing coating layer. Next, a feeding robot transfers the substrate from the feeding tank to the drying tank, at which point the substrate changes from a horizontal to a vertical position. Then, in the drying tank, a discharging robot picks up the substrate and removes it from the feeding robot. The discharging robot then transfers the substrate from the drying tank to the discharging tank, at which point the substrate changes from a vertical to a horizontal position, completing a 180° flip. Finally, the discharging robot moves the flipped substrate horizontally into the air box, where it is dried by convection air. A cured resin layer is formed on the surface coated with cleaning solution. Therefore, compared with the prior art, this invention, on the one hand, removes impurities from the substrate surface through two cleaning processes while forming a resin-coated coating layer. Furthermore, by rotating the coating layer 180° with the substrate, the coating layer is dried and air-dried sequentially, automatically forming the required resin-cured layer. On the other hand, in the subsequent adhesive application process, not only is the amount of adhesive applied reduced, but the bonding between the skin layer and the co-extruded board is also improved, thereby significantly increasing the peel strength of the skin layer. Thirdly, the two strip brushes in each group are symmetrically arranged vertically to remove impurities from the upper and lower surfaces of the substrate, and the extension direction of each brush roller is perpendicular to the substrate translation direction. Furthermore, the horizontal extension corresponds to the pressure roller positioned above the brush roller, improving the force during brushing and facilitating surface cleaning. Fourthly, the track configuration allows the substrate to switch between horizontal and vertical positions. In this application, the symmetrical arrangement of the feed and discharge tracks first transforms the substrate's brush surface from horizontal downward to vertical to right, and then from vertical to right to horizontal upward, achieving a 180° rotation of the substrate's brush surface. This greatly facilitates subsequent substrate stacking or continuous veneer processing. Fifthly, the foil layout facilitates heat energy accumulation, thereby improving drying efficiency while reducing energy consumption. Sixthly, the arrangement of the inlet and outlet fans ensures that the air passing through the fan... The substrate of the box can dissipate heat quickly in the convective airflow so that the cleaning solvent on the substrate surface can form a cured resin layer; in the seventh aspect, the discharge robot and the feed robot are adsorbed on opposite sides of the substrate by negative pressure, and the discharge robot and the feed robot can transfer the substrate laterally in the drying tank to facilitate the relative transfer and reversal of the substrate; in the eighth aspect, the chuck used includes a slide seat that moves towards each other along the width direction of the feed track and is set on the feed trolley, and a telescopic clamping arm set on the slide seat and having a notch that matches the side of the substrate. The discharge robot is adsorbed on the opposite side of the substrate where the cleaning liquid is formed by the negative pressure adsorption head, and the negative pressure adsorption head is connected to the discharge trolley by the telescopic support arm.

[0109] The present invention has been described in detail above, with the aim of enabling those skilled in the art to understand and implement the invention. However, this description should not be construed as limiting the scope of protection of the invention. All equivalent changes or modifications made in accordance with the spirit and essence of the invention should be included within the scope of protection of the invention.

Claims

1. A lower brush roll cleaning process for floor profiling, characterized in that, It comprises the following steps: S1, roller brush forms a coating layer First, the substrate surface is cleaned by removing impurities; second, the cleaned substrate enters the cleaning tank, then the brush roller located at the lower surface of the substrate rotates around its own axis to brush the cleaning solvent in the cleaning tank to the lower surface of the substrate, and in the second cleaning to form a coating layer containing resin on the lower surface of the substrate; S2, curing of the coating layer First, drying, which adopts a drying section including an oven, a heating roller arranged in the oven and heating the substrate, the oven includes a drying tank extending along the vertical direction, an inlet chute and an outlet chute extending horizontally on the opposite sides of the drying tank, and the inlet and outlet mechanical hands are used for clamping and transferring, wherein during drying, the substrate forming the coating layer horizontally enters the inlet mechanical hand of the inlet chute, and the substrate is transferred from the inlet chute to the drying tank by the inlet mechanical hand, at this time the substrate changes from horizontal state to vertical state, then the substrate is clamped by the outlet mechanical hand in the drying tank and separated from the inlet mechanical hand, and then the substrate is transferred from the drying tank to the outlet chute by the outlet mechanical hand, at this time the substrate changes from vertical state to horizontal state, and the 180° inversion of the substrate coating layer is completed, at this time the coating layer on the upper surface of the substrate is dried; second, air drying, which adopts an air drying section including a blast box and a convection air flow assembly forming convection in the blast box, wherein during air drying, the inverted substrate is translated into the blast box by the outlet mechanical hand, and the coating layer of the substrate is further dried by the convection air to form a cured resin layer.

2. The lower brush type cleaning process for forming a floor according to claim 1, wherein In S1, a first cleaning unit and a second cleaning unit are respectively used, wherein the first cleaning unit is used for removing impurities on the surface of the substrate, and the second cleaning unit includes a cleaning tank containing cleaning solvent, and a brush roller located below the substrate and capable of brushing the lower surface of the substrate, wherein the brush roller rotates around its own axis and is arranged in the cleaning tank, and the lower part of the brush roller is immersed in the cleaning solvent.

3. The lower brush roll cleaning process for floor forming according to claim 2, characterized in that, The first cleaning unit includes a positioning frame and a strip brush arranged on the positioning frame, wherein the extension direction of the strip brush intersects the translation direction of the substrate, and the bristles of the strip brush brush off the impurities on the surface of the substrate.

4. The lower brush type cleaning process for forming a floor according to claim 3, wherein The strip brush forms a plurality of groups, and each group has two strip brushes arranged symmetrically above and below, and the impurities on the upper and lower surfaces of the substrate are brushed off.

5. The lower brush type cleaning process for forming a floor according to claim 2, wherein The brush roller has a plurality of brush rollers, and the extension direction of each brush roller is perpendicular to the translation direction of the substrate and extends horizontally, and the second cleaning unit further includes a pressure roller arranged above the brush roller.

6. The lower brush roll cleaning process for floor forming according to claim 1, wherein, A feeding track is formed between the inlet chute and the drying tank, and the inlet mechanical hand reciprocates along the feeding track between the inlet chute and the drying tank; an outlet track is formed between the outlet chute and the drying tank, and the outlet mechanical hand reciprocates along the outlet track between the outlet chute and the drying tank.

7. The lower brush roll cleaning process for floor forming according to claim 6, wherein, The feeding track and the discharging track are symmetrically arranged, and comprise a horizontal section arranged horizontally, a vertical section arranged vertically in the drying groove, and a bending section for connecting the horizontal section and the vertical section, wherein a transverse limiting port is arranged at the end of the horizontal section away from the bending section, and a longitudinal limiting port is arranged at the lower end of the vertical section, the feeding manipulator and the discharging manipulator are respectively moved on the corresponding feeding track and discharging track through a feeding trolley and a discharging trolley, and the feeding trolley and the discharging trolley are respectively moved between the transverse limiting port and the longitudinal limiting port, and the corresponding substrate is switched between the horizontal and the vertical.

8. The lower brush roll cleaning process for floor forming according to claim 6, wherein, The heating rollers are arranged between the sidewall of the drying groove and the feeding track and the discharging track, and extend along the width direction of the feeding track and the discharging track.

9. The lower brush roll cleaning process for floor forming according to claim 1 or 8, characterized in that: A foil is further arranged between the heating rollers and the sidewall of the drying groove.

10. The lower brush roll cleaning process for floor forming as claimed in claim 9 wherein: The foil is arranged at the bottom of the drying groove, and the heating rollers are arranged above the foil at the bottom of the drying groove, and the heating rollers at the bottom and the heating rollers at the side are arranged in parallel.

11. The lower brush roll cleaning process for floor forming according to claim 1, wherein: The air flow assembly comprises an air inlet fan and an air outlet fan arranged at opposite sides of the air bellow, and the substrate passing through the air bellow can be quickly cooled in the convection air flow to form a solidified resin layer on the substrate surface under the arrangement of the air inlet fan and the air outlet fan.

12. The lower brush roll cleaning process for floor forming as claimed in claim 1 wherein: The feeding manipulator and the discharging manipulator are adsorbed on opposite sides of the substrate by negative pressure, and the substrate can be laterally translated and transferred between the feeding manipulator and the discharging manipulator in the drying groove.

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