A film laminating device for a floor locking system

Abstract

The embodiment of the application discloses a floor lock system film coating device, which comprises a rack, a conveying mechanism arranged on the rack and capable of conveying along an x-axis direction, a unwinding mechanism arranged at a starting end of one side of the conveying mechanism and capable of moving along a y-axis direction, a pressing mechanism arranged at the rear of the unwinding mechanism on the same side of the unwinding mechanism and arranged along the x-axis direction, the pressing mechanism being suitable for receiving a protective film provided from the unwinding mechanism and pressing the protective film to a tenon structure surface, and a backstop mechanism arranged on the other side of the conveying mechanism relative to the pressing mechanism and extending along the x-axis direction, the backstop mechanism being capable of moving along the y-axis direction to adjust the spacing between the backstop mechanism and the pressing mechanism. The device has the advantages of high work efficiency in equipment debugging.

Description

Technical Field

[0001] The present invention relates to the technical field of film coating equipment for a locking system of a wooden floor, and in particular to a film coating device for a floor locking system. Background Art

[0002] There are various installation systems for wooden flooring, among which the snap-lock system offers relatively stable connections and efficient installation. However, the manufacturing process of the snap-lock system creates large open surfaces on the side edges of the wooden flooring, namely the tongue and groove surfaces of the snap-lock system. After installation, the friction between these two surfaces can cause noise. While existing solutions exist for sealing the tongue and groove surfaces by coating them with molten paraffin, these solutions are ineffective, particularly on the tongue and groove surfaces of solid wood flooring, where the paraffin layer easily dries out, wears away, or falls off.

[0003] In the US Patent Database, patent publication number US2013 / 0008118A1, titled "Non-Squeaking Wood Flooring System and Methods," discloses a technical solution for applying a protective film (such as an OPP film) to the locking system to prevent the floor from making noise. The device also discloses a film-coating device. The device uses multiple rollers, arranged at different angles according to the different inclinations of the various surfaces of the locking system, to press the protective film onto the locking system.

[0004] In the Chinese patent database, patent publication number CN109624290A, titled "Method and Equipment for Laminating Solid Wood Flooring," discloses a technical solution for simultaneously applying a protective film (e.g., polyethylene film) to both sides of a floor, along with a device for laminating the film. The device uses two sets of pressure rollers positioned opposite the sides of the solid wood floor to press the protective film onto a locking system. The device also utilizes first and second slide rails with adjustable spacing to accommodate floor coverings of varying widths. Summary of the Invention

[0005] However, after creative research and discovery by the inventors, the locking system laminating device of the first embodiment has the following defects:

[0006] This device simultaneously applies a film to both sides of the floorboard (the tongue and groove structure). The protective film is applied to the tongue and groove surfaces using a series of pressure rollers with varying inclinations. However, in the recessed areas of the tongue and groove, this can be achieved by further tilting the pressure rollers, but it is best done manually to accommodate the complex shapes of the recessed areas and ensure a snug fit of the film. Therefore, this technical solution may result in the protective film not being adhered snugly (which can easily cause it to fall off during transportation and storage), or inefficient production due to manual application.

[0007] After creative research and discovery by the inventors, the locking system laminating device of the second embodiment has the following defects:

[0008] The width of the interlocking system of the floorboards also varies with the width of the floor, and exhibits subtle differences in shape, but this primarily reflects the change in the width of the interlocking system. Adjusting the spacing between the first and second pressure wheels can only accommodate variations in the width of the floorboards, not the differences in width and shape of the interlocking systems. For example, after the interlocking system width changes, the x-axis centerline of the protective film unwound by the unwinding mechanism no longer coincides with the x-axis centerline of the tenon structure. Manual adjustment of the position of each first pressure wheel, based on the x-axis centerline of the unwinding mechanism, is necessary to re-align the x-axis centerline of the tenon structure with the x-axis centerline of the protective film when the floorboards are positioned according to the restraining positions established by each first pressure wheel. Furthermore, while the multiple second pressure wheels only serve to balance the pressure of the first pressure wheels, each second pressure wheel also corresponds to a specific location on the groove structure of the floorboards (in this technical solution, this design is intended to enable simultaneous coating of the groove structure). Therefore, simply moving the second pressure wheels as a whole will not restore their y-axis position to their restraining and abutting functions against the groove structure that has changed in width and shape. The position of each second pressing wheel needs to be manually adjusted so that the second pressing wheel can abut against each position of the groove structure again and play a limiting role. However, the above operation is very complicated.

[0009] At the same time, in this technical solution, although it is disclosed that the first and second pressure wheels should be arranged corresponding to the first and second side surfaces of the floor, no specific technical solution is given.

[0010] The purpose of the coating is to provide a flexible barrier between the tenon and slot surfaces of the locking system, preventing friction and noise. Through the inventors' creative research and discovery, coating only the tenon structure can effectively isolate the contact between the tenon and slot surfaces, achieving a silent effect. Therefore, coating both the tenon and slot structures simultaneously is meaningless and, in some cases, potentially harmful. For example, a double-layer coating can create an excessively tight fit between the tenon and slot, increasing the difficulty of assembly and disassembly, and the excessively tight fit can also produce noise.

[0011] The technical problem to be solved by the present invention is to provide a coating device for a floor locking system in response to the deficiencies in the prior art, which can effectively solve at least one of the above problems.

[0012] To achieve the above-mentioned object, an embodiment of the present invention provides a coating device for a floor locking system, characterized in that it includes:

[0013] frame;

[0014] A conveying mechanism, the conveying mechanism is arranged on the frame and can convey along the x-axis direction;

[0015] an unwinding mechanism, the unwinding mechanism being movable along the y-axis and being arranged at a starting end of one side of the conveying mechanism;

[0016] A pressing mechanism, which is arranged on the same side as the unwinding mechanism and behind the unwinding mechanism, arranged along the x-axis direction, and is suitable for receiving the protective film provided by the unwinding mechanism and pressing the protective film against the tenon structure surface;

[0017] A backing mechanism is provided on the other side of the conveying mechanism relative to the pressing mechanism and extends along the x-axis direction. The backing mechanism can move along the y-axis direction to adjust the distance between it and the pressing mechanism.

[0018] Preferably, the backing mechanism abuts against a vertical side wall of the slot structure.

[0019] Preferably, the backrest mechanism includes a first beam extending along the x-axis direction, a plurality of limiting rollers arranged on the first beam at sequential intervals, and a first adjustment unit, wherein the first adjustment unit is suitable for driving the first beam to move along the y-axis direction.

[0020] Preferably, the first adjusting unit includes:

[0021] A slide rail, the slide rail is arranged on the frame and extends along the y-axis direction;

[0022] a slider connected to the first crossbeam and capable of sliding along the slide rail, wherein the slider has a threaded groove extending through it along the y-axis direction;

[0023] a screw rod, the screw rod being inserted into the thread groove and engaging with the thread of the thread groove;

[0024] A driving member is adapted to drive the screw to rotate.

[0025] Preferably, the first adjustment unit includes two or more groups, and the two or more groups of the first adjustment units are connected via a synchronization shaft.

[0026] Preferably, the unwinding mechanism includes an unwinding unit and a second adjusting unit, and the second adjusting unit is suitable for driving the unwinding unit to move along the y-axis direction.

[0027] Preferably, the pressing mechanism includes a shaping unit and a correction unit.

[0028] Preferably, the shaping unit includes first to fourth pressure parts with adjustable positions, wherein the first pressure part and the third pressure part provide pressure in the vertical direction, the second pressure part provides pressure inclined toward the support mechanism and the conveying surface, and the fourth pressure part provides pressure along the x-axis direction.

[0029] Preferably, in the projection formed on the yz plane, the second pressure-applying portion is in a convex arc shape, and the third pressure-applying portion is in a concave trapezoidal surface.

[0030] Preferably, the pressure surface of the second pressure portion is an elastic surface.

[0031] Preferably, in the vertical direction, the distance between the first pressure portion and the conveying surface is equal to the thickness of the floorboard, the second pressure portion is lower than the first pressure portion, the third pressure portion is between the first pressure portion and the second pressure portion, and the fourth pressure portion is lower than the second pressure portion;

[0032] In the y-axis direction, the first to fourth pressure applying parts gradually move away from the backing mechanism.

[0033] Preferably, the correction unit includes fifth to eighth pressure parts with adjustable positions, wherein the fifth pressure part provides pressure in the vertical direction, the sixth pressure part provides pressure toward the backrest mechanism and the conveying surface, and is inclined to provide pressure, the seventh pressure part provides pressure along the x-axis direction, and the eighth pressure part provides pressure toward the backrest mechanism and away from the conveying surface, and is inclined to provide pressure.

[0034] Preferably, the projection of the eighth pressure-applying portion on the yz plane is in the shape of a convex arc.

[0035] Preferably, the pressure surface of the eighth pressure portion is an elastic surface.

[0036] Preferably, in the vertical direction, the fifth pressing portion is at the same height as the third pressing portion, and the sixth pressing portion is higher than the eighth pressing portion;

[0037] In the y-axis direction, the distance between the seventh pressure portion and the backing mechanism is greater than the distance between the fourth pressure portion and the backing mechanism.

[0038] Preferably, the pressing mechanism includes a plurality of pressing wheels sequentially spaced apart along the x-axis direction.

[0039] Preferably, the pressure wheel can change its setting position and the wheel axle setting angle in the x-axis, y-axis and z-axis directions.

[0040] In summary, the embodiment of the present invention adopts the above structure, which has the following advantages:

[0041] 1. Only the pressing lamination of the tenon structure surface is provided, and a backing mechanism is set on one side of the groove structure. Therefore, it is only necessary to adjust the y-axis setting position of the backing mechanism to meet the lamination requirements of floor blocks of different widths, thereby improving the efficiency of equipment debugging.

[0042] 2. For tenon structures of different widths, with the vertical side of the tenon structure as a reference, it is only necessary to adjust the y-axial setting position of the unwinding mechanism to complete the re-alignment of the x-axial center line of the unwinding unit and the x-axial center line of the tenon structure; thereby, at least the pressure position and pressure angle of some of the pressure parts do not need to be changed, and only the pressure position of individual pressure parts needs to be changed to make multiple pressure parts fit the tenon structure surface with the changed width again, thereby improving the work efficiency of equipment debugging.

[0043] 3. The pressing mechanism is divided into a shaping unit and a correction unit. The shaping unit can first roughly bend the protective film into a shape similar to the tenon structural surface, and roughly stick the protective film on the tenon structural surface. Then, through the correction unit, the protective film can be more closely attached to the tenon structural surface, thereby improving the laminating effect. Moreover, when the protective film is closely attached, it can avoid the situation where the protective film falls off during use.

[0044] To further understand the features and technical contents of the present invention, please refer to the following detailed description and drawings of the present invention. However, the drawings provided are only for reference and illustration and are not intended to limit the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative labor.

[0046] Figure 1 A structural schematic diagram of a floor locking system coating device from one perspective is shown in an embodiment of the present application.

[0047] Figure 2 A structural schematic diagram of a floor locking system coating device from another perspective is shown in an embodiment of the present application.

[0048] Figure 3 A schematic structural diagram of a floorboard according to an embodiment of the present application is shown.

[0049] Figure 4 A structural schematic diagram of the tenon structure of an embodiment of the present application is shown.

[0050] Figure 5 A schematic diagram of the limiting relationship between the limiting roller and the groove structure in an embodiment of the present application is shown.

[0051] Figures 6 to 9 The diagram shows the pressing relationship between the first to fourth pressing parts and the tenon structure of the embodiment of the present application.

[0052] Figures 10 to 13 The diagram shows the pressing relationship between the fifth to eighth pressure parts and the tenon structure of the embodiment of the present application.

[0053] Figure 14 The diagram shows the pressing relationship between the limiting pressure wheel and the tenon structure in the embodiment of the present application.

[0054] The figure numbers of the above drawings are: 1. floor block, 2. frame, 3. conveying mechanism, 4. unwinding mechanism, 6. backing mechanism, 7. protective film, 11. tenon structure, 12. groove structure, 111. upper vertical surface, 112. lower vertical surface, 113. arc concave surface, 114. tenon surface, 115. tenon side end surface, 116. tenon bottom surface, 117. tenon outer inclined surface, 118. tenon inner inclined surface, 41. unwinding unit , 42. Second adjusting unit, 43. Guide wheel, 44. Mounting plate, 51. First pressure wheel, 52. Second pressure wheel, 53. Third pressure wheel, 54. Fourth pressure wheel, 55. Fifth pressure wheel, 56. Sixth pressure wheel, 57. Seventh pressure wheel, 58. Eighth pressure wheel, 59. Limiting pressure wheel, 61. First beam, 62. Limiting roller, 63. First adjusting unit, 631. Slide rail, 632. Slider, 633. Screw. DETAILED DESCRIPTION

[0055] In order to enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of this application.

[0056] Example

[0057] Reference Figure 1 、 Figure 2 The film covering device of the floor lock system shown is suitable for reference Figure 3 、 Figure 4 The surface of the tenon structure 11 of the floor locking system shown is coated. The coating device of this floor locking system can complete the coating of the tenon structure 11 of the locking system, which includes a tongue, an upper vertical surface 111 and a lower vertical surface 112 connecting the tongue to the floorboard 1, a circular arc concave surface 113 connecting the upper vertical surface 111 and the tongue, as well as a tongue surface 114, a tongue side end surface 115, a tongue bottom surface 116, a tongue outer bevel 117 connecting the tongue side end surface 115 and the tongue bottom surface 116, and a tongue inner bevel 118 connecting the tongue bottom surface 116 and the circular arc concave surface 113. The structure of the groove structure 12 matches the tenon structure 11. Of course, the structure of the tenon structure 11 and the groove structure 12 is not limited to this, and in particular, the angles and depths of the circular arc concave surface 113, the tongue outer bevel 117, and the tongue inner bevel 118 are not limited.

[0058] The laminating device of the floor locking system includes a frame 2, a conveying mechanism 3, an unwinding mechanism 4, a pressing mechanism, and a backing mechanism 6.

[0059] The frame 2 can be any of the conventional ones, and the frame 2 extends along the x-axis. The conveying mechanism 3 is disposed on the frame 2 and is capable of conveying along the x-axis. The conveying mechanism 3 of this embodiment includes a conventional roller conveyor line and a plurality of pressure rollers disposed above the stick conveyor line. The plurality of pressure rollers are adapted to cooperate with the stick conveyor line to prevent the floor panels 1 from being squeezed by the pressing mechanism and the backing mechanism 6 and causing them to jump. Of course, the conveying mechanism 3 can also be other conveying devices capable of conveying in the x-axis direction.

[0060] The backing mechanism 6 is mounted on the frame 2, and is located on either side of the conveyor mechanism 3, along with the pressing mechanism 5. The backing mechanism 6 extends along the x-axis and can be moved along the y-axis to adjust the spacing between it and the pressing mechanism. In this embodiment, only the surface of the tenon structure 11 is provided for pressing and laminating, while the backing mechanism 6 is positioned on one side of the groove structure 12. Therefore, simply adjusting the y-axis position of the backing mechanism 6 can accommodate the laminating requirements of floorboards 1 of varying widths, improving equipment commissioning efficiency.

[0061] Specifically, the backing mechanism 6 includes a first beam 61 extending along the x-axis direction, a plurality of limiting rollers 62 arranged on the first beam at intervals, and a first adjustment unit 63. The plurality of limiting rollers 62 are rotatably mounted on the first beam 61 via roller shafts, the roller shafts of the limiting rollers 62 are arranged along the z-axis direction, and the outer edges of the limiting rollers 62 constitute the backing working surface of the backing mechanism 6. Preferably, refer to Figure 5 As shown, the outer edge of the limiting roller 62 abuts against a vertical side wall of the groove structure 12 , such as the outer side wall of the groove structure 12 .

[0062] Replay Figure 1 、 Figure 2 The first adjustment unit 63 is adapted to drive the movement of the first crossbeam 61 along the y-axis. It comprises a slide rail 631 mounted on the frame 2 and extending along the y-axis, a slider 632 capable of sliding along the slide rail 631 and connected to the first crossbeam 61, a screw 633, and a drive member (not shown). The top surface of the slider 632 is screwed or welded to the bottom surface of the first crossbeam 61, thereby securing the first crossbeam 61 to the slider 632. A threaded groove is defined through the slider 632 along the y-axis, into which the screw 633 is inserted and threadably engaged. The drive member is adapted to rotate the screw 633, such as a reduction motor controlled by a switch. To ensure stable and smooth movement of the first crossbeam 61, two or more sets of first adjustment units 63 can be provided, connected by a synchronous shaft and driven simultaneously by the drive member. Of course, in addition to using a reduction motor to drive the rotation of the screw 633, manual adjustment using a handwheel is also possible.

[0063] The unwinding mechanism 4 is located at the beginning of the frame 2 and is arranged close to the pressing mechanism. The unwinding mechanism 4 includes an unwinding unit 41 and a second adjusting unit 42. The second adjusting unit 42 is suitable for driving the unwinding unit to move along the y-axis direction so that the x-axial center line of the unwinding mechanism 4 always coincides with the x-axial center line of the pressing mechanism. The second adjusting unit 42 is a screw handwheel adjustment device of the prior art. With the above structure, for tenon structures 11 of different widths, one or two vertical sides of the tenon structure 11 are selected as the reference for adjustment (such as the upper vertical surface 111, the lower vertical surface 112 or the tenon tongue side end surface 115), so it is only necessary to adjust the y-axial setting position of the unwinding mechanism 4 to complete the re-centering adjustment of the x-axial center line of the unwinding mechanism 4 and the x-axial center line of the tenon structure 11, thereby improving the working efficiency of equipment debugging.

[0064] Specifically, the unwinding unit 41 can be of the prior art. For example, the unwinding unit 41 of the present embodiment includes a bracket, an unwinding roller shaft rotatably mounted on the bracket, and the protective film 7 is wound on the unwinding roller shaft, and the two ends are elastically fixed by springs sleeved on the unwinding roller shaft. It also includes at least two guide wheels 43 arranged below the unwinding roller shaft, and the guide wheels 43 are suitable for tensioning the protective film 7 and conveying the protective film 7 to the pressing mechanism. In particular, in the present embodiment, the guide wheels 43 and the unwinding unit 41 are installed through the same mounting plate 44, and the axle of the guide wheel 43 passes through the mounting plate 44 and is screwed and fixed on both sides. The guide wheel 43 is sleeved on the axle and can rotate. Therefore, in the present embodiment, the second adjustment unit 42 can simultaneously complete the setting position of the unwinding unit 41 and the guide wheel 43 by driving the movement of the mounting plate 44 in the y-axis direction, thereby improving the working efficiency of equipment debugging.

[0065] The pressing mechanism is arranged on the same side as the unwinding mechanism 4 and behind the unwinding mechanism 4, and is arranged along the x-axis direction. The pressing mechanism is suitable for receiving the protective film 7 provided by the unwinding mechanism 4 and pressing the protective film 7 against the tenon structure surface. The pressing mechanism of this embodiment includes a shaping unit and a correction unit. By dividing the pressing mechanism into the shaping unit and the correction unit, the shaping unit can first roughly bend the protective film 7 into a shape similar to the surface of the tenon structure 11, and roughly stick the protective film 7 on the surface of the tenon structure 11. Then, through the correction unit, the protective film 7 can be more closely attached to the surface of the tenon structure 11, thereby improving the laminating effect. When the protective film 7 is closely attached, it can avoid the situation where the protective film 7 falls off during use.

[0066] Specifically, the shaping unit includes the first to fourth pressure parts with adjustable settings, and the correction unit includes the fifth to eighth pressure parts with adjustable settings. In this embodiment, the pressing mechanism includes eight first to eighth pressure wheels 51-58 arranged in sequence along the x-axis direction, and the first to eighth pressure parts are formed by the outer edges of the wheels of the eight pressure wheels. The first to eighth pressure wheels 51-58 are installed through the second crossbeam, and the second crossbeam is a part of the frame 2 or is screwed and installed on the frame 2. In particular, the first to eighth pressure wheels 51-58 can all change their setting positions and their wheel axle setting angles in the x-axis, y-axis, and z-axis directions. The adjustment method of its wheel axle setting position and setting angle belongs to the existing method.

[0067] Of course, in some other embodiments, the first to eighth pressure applying parts may also be formed by eight pressure blocks having pressure applying surfaces.

[0068] In this embodiment, the axles of the first and third pressure rollers 51, 53 are arranged along the y-axis, allowing the first and third pressure components to apply pressure in the vertical direction. The axle of the second pressure roller 52 is arranged at an angle toward the support mechanism in the yz plane, allowing the second pressure component to apply pressure at an inclined angle toward the support mechanism 6 and the conveying surface of the conveying mechanism 3. The axle of the fourth pressure roller 54 is arranged along the z-axis, allowing the fourth pressure component to apply pressure along the x-axis. From the perspective of their y-axis positions, the first, second, third, and fourth pressure rollers 51, 52, 53, and 54 gradually move away from the support mechanism 6. That is, the first, second, and fourth pressure components gradually move away from the support mechanism. From the perspective of the z-axis, the distance between the bottom edge of the first pressure wheel 51 and the conveying surface is the same as the thickness of the floorboard 1. The bottom edge of the second pressure wheel 52 is lower than the bottom edge of the first pressure wheel 51. The bottom edge of the third pressure wheel 53 is between the bottom edges of the first and second pressure wheels 51, 53. The upper surface of the fourth pressure wheel 54 is lower than the bottom edge of the second pressure wheel 52. In other words, the distance between the first pressure part and the conveying surface is equal to the thickness of the floorboard, the second pressure part is lower than the first pressure part, the third pressure part is between the first and second pressure parts, and the fourth pressure part is lower than the second pressure part.

[0069] Therefore, refer to Figures 6 to 9 As shown, the outer edge of the first pressure wheel 51 at least partially abuts against the back of the ground plate 1, the outer edge of the second pressure wheel 52 abuts against the bottom of the arc concave surface 113 of the tenon structure 11, the outer edge of the third pressure wheel 53 at least partially abuts against the bottom surface 116 of the tenon tongue of the tenon structure 11, and the outer edge of the fourth pressure wheel 54 at least partially abuts against the upper vertical surface 111 of the tenon structure 11.

[0070] Preferably, the first pressure wheel 51 is a flat pressure wheel; the second pressure wheel 52 is a conical wheel, and its wheel body is made of an elastic material; the third pressure wheel 53 is a flat pressure wheel, and its two ends extend outward to form a pair of circular rings, and its wheel body is made of an elastic material. Therefore, in the projection formed on the yz plane, the second pressure portion is a convex arc, and the second pressure portion can more smoothly bend the protective film 7 along the concave arc surface 113; the third pressure portion is a concave trapezoidal surface, and the third pressure portion can bend the protective film 7 along the outer inclined surface 117 of the tenon, the bottom surface 116 of the tenon, and the inner inclined surface 118 of the tenon. The second and third pressure portions complete the approximate adhesion of the protective film 7 to the two anisotropic surfaces of the tenon structure 11.

[0071] Thus, the first pressure portion applies force in the vertical direction, initially bringing the protective film 7 into contact with the back surface of the floorboard 1. The second pressure portion applies force at an angle with a convex arc surface, bending the protective film 7 into an inward concave arc. The third pressure portion applies force in the vertical direction with a concave trapezoidal surface, subsequently bending the protective film 7 into an upward convex arc. The fourth pressure portion applies force in the y-axis direction, and its force application position is lower than the second pressure portion, subsequently bending the protective film 7 into a shape that matches the tongue of the tenon structure. Therefore, the provision of the first to fourth pressure portions can align the protective film 7 with the tenon structure and bend the protective film 7 into a shape that is substantially consistent with the surface of the tenon structure 11, even if the shape of the surface of the tenon structure 11 changes to a certain extent.

[0072] The axle of the fifth pressure wheel 55 is arranged along the y-axis, so the fifth pressure-applying portion can apply pressure in the vertical direction. The axle of the sixth pressure wheel 56 is arranged in an inclined direction toward the support mechanism 6 in the yz plane, so the sixth pressure-applying portion applies pressure at an angle toward the support mechanism 6 and the conveying surface. The axle of the seventh pressure wheel 57 is arranged in the z-axis, so the seventh pressure-applying portion applies pressure along the x-axis. The eighth pressure wheel 58 is arranged in an inclined direction away from the support mechanism 6 in the yz plane, so the eighth pressure-applying portion can apply pressure at an angle toward the support mechanism 6 and away from the conveying surface. From the perspective of the y-axis setting position, with the support mechanism 6 as the reference, the axle of the seventh pressure wheel 57 is arranged farther than the axle of the fourth pressure wheel 54. That is, the distance between the seventh pressure-applying portion and the support mechanism 6 is farther than the distance between the fourth pressure-applying portion and the support mechanism 6. From the perspective of the z-axis, the bottom edge of the fifth pressure wheel 55 is at the same height as the bottom edge of the third pressure wheel 53, while the bottom edge of the sixth pressure wheel 56 is higher than the bottom edge of the eighth pressure wheel 58. In other words, the fifth pressure portion is at the same height as the third pressure portion, and the sixth pressure portion is higher than the eighth pressure portion.

[0073] Preferably, the eighth pressure wheel 58 is a conical wheel, so the projection of the eighth pressure portion on the yz plane is a convex arc, and its wheel body is made of elastic material, so the pressure surface of the eighth pressure portion is an elastic surface.

[0074] Therefore, refer to Figures 10 to 13 As shown, the outer edge of the fifth pressure wheel 55 at least partially abuts the bottom surface 116 of the tenon, the outer edge of the sixth pressure wheel 56 at least partially abuts the outer inclined surface 117 of the tenon, the outer edge of the seventh pressure wheel 57 at least partially abuts the side end surface 115 of the tenon, and the outer edge of the eighth pressure wheel 58 abuts the recess between the upper vertical surface 111 and the tenon surface 114.

[0075] Thus, the fifth pressure-applying portion applies force in the vertical direction, allowing the protective film 7 to adhere snugly to the tongue bottom surface 116; the sixth pressure-applying portion applies force at an angle, allowing the protective film 7 to adhere snugly to the tongue outer inclined surface 117; the seventh pressure-applying portion applies force in the x-axis direction, allowing the protective film 7 to adhere snugly to the tongue side end surface 115; and the eighth pressure-applying portion applies force at an angle along an arc surface, allowing the protective film 7 to adhere snugly to the recess between the upper vertical surface 111 and the tongue surface 114. Therefore, the provision of the fifth to eighth pressure-applying portions ensures snug application of the protective film 7.

[0076] Preferably, refer to Figure 14 As shown, a plurality of limiting pressing wheels 59 cooperating with the backing mechanism 6 are provided behind the pressing mechanism 5 , and the outer edges of the limiting pressing wheels 59 at least partially abut against the side end surface 115 of the tenon.

[0077] The above description is intended to be illustrative and not limiting. Many embodiments and applications beyond the examples provided will be apparent to those skilled in the art upon reading the above description. Therefore, the scope of the present teachings should not be determined with reference to the above description, but rather with reference to the appended claims and the full scope of equivalents to which such claims are entitled. For the purpose of completeness, all articles and references, including disclosures of patent applications and publications, are incorporated herein by reference. The omission of any aspect of the subject matter disclosed herein from the preceding claims is not a disclaimer of such subject matter, nor should it be considered that the applicants did not consider such subject matter to be part of the disclosed subject matter.

Claims

1. A coating device for a floor locking system, characterized in that: include: frame; A conveying mechanism, the conveying mechanism is arranged on the frame and can convey along the x-axis direction; an unwinding mechanism, the unwinding mechanism being movable along the y-axis and being arranged at a starting end of one side of the conveying mechanism; A pressing mechanism, which is arranged on the same side as the unwinding mechanism and behind the unwinding mechanism, arranged along the x-axis direction, and is suitable for receiving the protective film provided by the unwinding mechanism and pressing the protective film against the tenon structure surface; a backing mechanism, the backing mechanism being arranged on the other side of the conveying mechanism relative to the pressing mechanism, extending along the x-axis direction, and being movable along the y-axis direction to adjust the distance between the backing mechanism and the pressing mechanism; The pressing mechanism includes a shaping unit and a correction unit, and the shaping unit includes first to fourth pressure parts with adjustable positions, wherein the first and third pressure parts provide pressure in the vertical direction, the second pressure part provides pressure inclined toward the backing mechanism and the conveying surface, and the fourth pressure part provides pressure in the x-axis direction; in the vertical direction, the distance between the first pressure part and the conveying surface is equal to the thickness of the floorboard, the second pressure part is lower than the first pressure part, the third pressure part is between the first and second pressure parts, and the fourth pressure part is lower than the second pressure part; in the y-axis direction, the first to fourth pressure parts gradually move away from the backing mechanism; The correction unit includes a fifth pressure part to an eighth pressure part with adjustable positions, wherein the fifth pressure part provides pressure in the vertical direction, the sixth pressure part provides pressure toward the backrest mechanism and the conveying surface and is inclined, the seventh pressure part provides pressure along the x-axis direction, and the eighth pressure part provides pressure toward the backrest mechanism and away from the conveying surface and is inclined; in the vertical direction, the fifth pressure part and the third pressure part are at the same height, and the sixth pressure part is higher than the eighth pressure part; in the y-axis direction, the distance between the seventh pressure part and the backrest mechanism is farther than the distance between the fourth pressure part and the backrest mechanism.

2. The coating device of the floor locking system according to claim 1, characterized in that: The backing mechanism rests against a vertical side wall of the slot structure.

3. The coating device of the floor locking system according to claim 1 or 2, characterized in that: The backing mechanism includes a first beam extending along the x-axis direction, a plurality of limiting rollers arranged on the first beam at intervals, and a first adjusting unit, wherein the first adjusting unit is adapted to drive the first beam to move along the y-axis direction.

4. The coating device of the floor locking system according to claim 3, characterized in that: The first adjusting unit includes: A slide rail, the slide rail is arranged on the frame and extends along the y-axis direction; a slider connected to the first crossbeam and capable of sliding along the slide rail, wherein the slider has a threaded groove extending through it along the y-axis direction; a screw rod, the screw rod being inserted into the thread groove and engaging with the thread of the thread groove; A driving member is adapted to drive the screw to rotate.

5. The coating device of the floor locking system according to claim 4, characterized in that: The first adjustment units include two or more groups, and the two or more groups of the first adjustment units are connected through a synchronization shaft.

6. The coating device of the floor locking system according to claim 1, characterized in that: The unwinding mechanism includes an unwinding unit and a second adjusting unit, and the second adjusting unit is suitable for driving the unwinding unit to move along the y-axis direction.

7. The coating device of the floor locking system according to claim 1, characterized in that: In the projection formed on the yz plane, the second pressing portion is in a convex arc shape, and the third pressing portion is in a concave trapezoidal surface.

8. The coating device of the floor locking system according to claim 1, characterized in that: The pressing surface of the second pressing portion is an elastic surface.

9. The coating device of the floor locking system according to claim 1, characterized in that: The projection of the eighth pressure applying portion on the yz plane is in the shape of a convex arc.

10. The coating device of the floor locking system according to claim 1, characterized in that: The pressing surface of the eighth pressing portion is an elastic surface.

11. The coating device of the floor locking system according to claim 1, characterized in that: The pressing mechanism includes a plurality of pressing wheels sequentially spaced apart along the x-axis direction.

12. The coating device of the floor locking system according to claim 11, characterized in that: The pressure wheel can change its setting position and the wheel axis setting angle in the x-axis, y-axis and z-axis directions.

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