Surface detection device for plywood

Abstract

The utility model relates to the technical field of artificial board production, and discloses a plywood surface detection device which comprises a rack, a conveying mechanism, a defect detection mechanism and a coloring mechanism, a portal frame, a Y-axis walking mechanism for driving the portal frame to walk and an X-axis walking mechanism arranged on the portal frame are arranged on the downstream of the defect detection mechanism, the coloring mechanism comprises a coloring painting roller, a paint liquid tank, a paint liquid tank and a paint liquid pump, the paint liquid pump is connected with the paint liquid tank through a conveying pipe, a fixing plate is arranged at the bottom of a walking seat of the X-axis walking mechanism, a rotating disc is rotationally arranged at the bottom of the fixing plate, a driving motor is installed in the walking seat, a Z-axis moving mechanism is arranged at the bottom of the rotating disc, and a vertical plate is arranged at the rear end of the fixing plate; a horizontal moving mechanism capable of driving the paint liquid tank to horizontally move is arranged on the vertical plate, and a vertical moving mechanism capable of driving the paint liquid tank to vertically move is arranged on the horizontal moving mechanism. According to the utility model, surface defect positions are automatically colored by adopting a roller coating mode, and the problems of nozzle abrasion or blockage and the like are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of wood-based panel production, and particularly relates to a surface detection device for plywood. Background Art

[0002] After plywood is produced, its surface usually needs to be detected. Usually, visual image acquisition is used for detection. For the defect depression positions, it usually needs to be recolored. Currently, manual rolling coating or spraying methods are generally used to color the defect positions. For example, the Chinese invention patent with the patent publication number CN 116735495 A discloses a precise surface defect detection device for wood-based panels. After detecting the defect positions, it can be colored by an automatic coloring device through spraying. However, it is found in actual production that since the spraying colloid contains pigments, the paint nozzle is easily worn or blocked. Therefore, a surface detection device that colors the defect positions by rolling coating is needed. Summary of the Utility Model

[0003] The purpose of the utility model is to solve the above problems, and provide a surface detection device for plywood, which can color the surface defect positions by rolling coating, and solve the problem that the paint nozzle is easily worn or blocked in the spraying method.

[0004] To achieve the above purpose, the technical scheme adopted by the utility model is as follows: A surface detection device for plywood, including a frame, a conveying mechanism arranged on the frame for conveying plywood, a defect detection mechanism arranged above the conveying mechanism, and a coloring mechanism located downstream of the defect detection mechanism. There is a gantry frame downstream of the defect detection mechanism, a Y-axis traveling mechanism for driving the gantry frame to travel longitudinally along the frame, and an X-axis traveling mechanism arranged on the gantry frame to travel transversely along the frame. The coloring mechanism includes a coloring paint roller, a paint liquid tank, a paint liquid tank, and a paint liquid pump. The paint liquid pump is connected to the paint liquid tank, and the paint liquid pump is connected to the paint liquid tank through a delivery pipe. A fixing plate is arranged at the bottom of the traveling seat of the X-axis traveling mechanism. A turntable is rotatably arranged at the bottom of the fixing plate. A driving motor for driving the turntable to rotate is installed in the traveling seat. A Z-axis moving mechanism for driving the coloring paint roller to move vertically is arranged at the bottom of the turntable. A vertical plate is arranged at the rear end of the fixing plate. A horizontal moving mechanism for driving the paint liquid tank to move horizontally is arranged on the vertical plate so that the coloring paint roller and the paint liquid tank can correspond. A vertical moving mechanism for driving the paint liquid tank to move vertically is arranged on the horizontal moving mechanism so that the coloring paint roller can be immersed in the paint liquid tank.

[0005] Furthermore, a buffer mechanism is further arranged between the Z-axis moving mechanism and the coloring paint roller. The buffer mechanism includes a sleeve, a movable rod, and a buffer spring. The sleeve is arranged at the bottom of the mounting plate. The movable rod is movably sleeved at the lower end of the sleeve. The buffer spring is sleeved outside the movable rod.

[0006] Further, the Z-axis moving mechanism includes a guiding mechanism and a first air cylinder for pushing the painting roller up and down. The first air cylinder is arranged downward and fixed on the turntable. The lower end of the first air cylinder is connected to the mounting plate. The guiding mechanism includes a guiding tube and a first guiding rod. The guiding tubes are arranged on both sides of the first air cylinder. The guiding rod is movably sleeved on the lower end of the sleeve tube, and the lower end of the guiding rod is connected to the seat body of the painting roller.

[0007] Further, the horizontal moving mechanism includes a second air cylinder and a first moving plate. The second air cylinder is horizontally fixed on the back of the lower end of the vertical plate. The piston end of the second air cylinder is connected to the first moving plate, and the first moving plate is slidably connected to the back of the vertical plate.

[0008] Further, the vertical moving mechanism includes a third air cylinder and a second moving plate. The third air cylinder is vertically arranged on the back of the first moving plate. The piston end of the third air cylinder is connected to the second moving plate. The second moving plate is provided with a second guiding rod, and the lower end of the first moving plate is provided with a guiding hole that is movably connected in cooperation with the second guiding rod.

[0009] Further, the second moving plate is provided with a slot. Both sides of the paint tank are provided with insertion blocks that are inserted in cooperation with the slot. The second moving plate is provided with a fastener for fastening the insertion blocks.

[0010] Further, the delivery pipe includes a first connecting pipe section, a corrugated pipe section, and a second connecting pipe section that are connected in sequence. The first connecting pipe section is connected to the paint pump, the second connecting pipe section is communicated with the paint tank, and the second connecting pipe section is fixed on the second moving plate through a pipe clamp.

[0011] Further, a liquid level gauge is arranged in the paint tank.

[0012] Due to the adoption of the above technical solution, the present utility model has the following beneficial effects:

[0013] In this embodiment, by arranging the painting roller and the paint tank, after the painting roller is dipped in the paint in the paint tank, the direction of the painting roller can be adjusted by rotation, and it can be moved above the defective position under the drive of the X-axis traveling mechanism and the Y-axis traveling mechanism. The painting roller is brought into contact with the surface of the board under the drive of the Z-axis moving mechanism, and the painting roller rolls on the surface of the board under the drive of the Y-axis traveling mechanism, so as to realize the coating of the defective position. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a front view structural schematic diagram of a surface detection device for a plywood of the present utility model;

[0015] Figure 2For the present utility model Figure 1 Partial enlarged view of A in

[0016] Figure 3 Left view structural schematic diagram of a surface detection device for a plywood of the present utility model

[0017] Figure 4 For the present utility model Figure 3 Partial enlarged view of B in

[0018] In the figure: 1 - frame, 11 - conveying mechanism, 2 - defect detection mechanism, 3 - Y-axis traveling mechanism, 4 - gantry, 41 - X-axis traveling mechanism, 42 - fixing plate, 43 - turntable, 44 - vertical plate, 5 - coloring mechanism, 51 - paint tank, 52 - paint pump, 53 - conveying pipe, 531 - first connecting pipe section, 532 - corrugated pipe section, 533 - second connecting pipe section, 5331 - pipe clamp, 54 - coloring and painting roller, 55 - paint tank, 551 - inserting block, 6 - Z-axis moving mechanism, 61 - guiding pipe, 62 - first guide rod, 63 - first cylinder, 7 - buffering mechanism, 71 - sleeve, 72 - movable rod, 73 - buffering spring, 8 - horizontal moving mechanism, 81 - second cylinder, 82 - first moving plate, 9 - vertical moving mechanism, 91 - third cylinder, 92 - second guide rod, 93 - second moving plate, 931 - inserting slot. Specific embodiments

[0019] In order to enable those skilled in the art of the present technology to better understand the solution of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present utility model. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present utility model belongs. The terms used in the specification of the present utility model herein are only for the purpose of describing specific embodiments and are not intended to limit the present utility model. The terms "first", "second", etc. in the specification and claims of the present utility model and the above-mentioned drawings are used to distinguish different objects and are not used to describe a specific order. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but optionally further includes steps or units not listed, or optionally further includes other steps or units inherent to these processes, methods, products or devices.

[0020] References herein to "embodiments" mean that the particular features, structures, or characteristics described in connection with the embodiments can be included in at least one embodiment of the present utility model. The phrase appears in various places in the specification and does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0021] As Figures 1 to 4 shown, a surface detection device for plywood includes a frame 1, a conveying mechanism 11 provided on the frame 1 for conveying plywood, a defect detection mechanism 2 provided above the conveying mechanism 11, and a coloring mechanism 5 located downstream of the defect detection mechanism 2. A gantry 4 is provided downstream of the defect detection mechanism 2, a Y-axis traveling mechanism 3 for driving the gantry 4 to travel longitudinally along the frame 1, and an X-axis traveling mechanism 41 provided on the gantry 4 for traveling transversely along the frame 1. The coloring mechanism 5 includes a coloring paint roller 54, a paint tank 55, a paint tank 51, and a paint pump 52. The paint pump 52 is connected to the paint tank 51, and the paint pump 52 is connected to the paint tank 55 through a delivery pipe 53. A fixing plate 42 is provided at the bottom of the traveling seat of the X-axis traveling mechanism 41, and a turntable 43 is rotatably provided at the bottom of the fixing plate 42. A driving motor for driving the turntable 43 to rotate is installed in the traveling seat. A Z-axis moving mechanism 6 for driving the coloring paint roller 54 to move vertically is provided at the bottom of the turntable 43. A vertical plate 44 is provided at the rear end of the fixing plate 42, and a horizontal moving mechanism 8 capable of driving the paint tank 55 to move horizontally is provided on the vertical plate 44 so that the coloring paint roller 54 and the paint tank 55 can correspond to each other. A vertical moving mechanism 9 for driving the paint tank 55 to move vertically is provided on the horizontal moving mechanism 8 so that the coloring paint roller 54 can be immersed in the paint tank 55.

[0022] See Figure 2 , in this embodiment, a buffer mechanism 7 is further provided between the Z-axis moving mechanism 6 and the coloring paint roller 54. The buffer mechanism 7 includes a sleeve 71, a movable rod 72, and a buffer spring 73. The sleeve 71 is provided at the bottom of the mounting plate, the movable rod 72 is movably sleeved at the lower end of the sleeve 71, and the buffer spring 73 is sleeved outside the movable rod 72. The buffer mechanism 7 is beneficial to play a buffering role when the coloring paint roller 54 moves downward to contact the surface of the plywood, thereby reducing the impact on the board.

[0023] In this embodiment, the Z-axis moving mechanism 6 includes a guiding mechanism and a first air cylinder 63 for driving the painting roller 54 to move up and down. The first air cylinder 63 is arranged downward and fixed on the turntable 43. The lower end of the first air cylinder 63 is connected to the mounting plate. The guiding mechanism includes a guiding tube 61 and a first guide rod 62. The guiding tubes 61 are arranged on both sides of the first air cylinder 63. The guide rod is movably sleeved on the lower end of the sleeve 71, and the lower end of the guide rod is connected to the seat body of the painting roller 54. Through the telescopic action of the first air cylinder 63, the up and down movement of the painting roller 54 can be realized, and the guiding mechanism ensures the stability of the movement.

[0024] See Figure 3 , in which, the horizontal moving mechanism 8 includes a second air cylinder 81 and a first moving plate 82. The second air cylinder 81 is horizontally fixed on the back of the lower end of the vertical plate 44. The piston end of the second air cylinder 81 is connected to the first moving plate 82, and the first moving plate 82 is slidably connected to the back of the vertical plate 44. Through the telescopic action of the second air cylinder 81, the first moving plate 82 can be driven to move horizontally, so that the paint tank 55 moves horizontally, so that the paint tank 55 can move below the painting roller 54 when dip painting is required, and when dip painting is not required, the paint tank 55 can move to one side of the painting roller 54, thus not affecting the painting operation.

[0025] See Figure 2 , in which, the vertical moving mechanism 9 includes a third air cylinder 91 and a second moving plate 93. The third air cylinder 91 is vertically arranged on the back of the first moving plate 82. The piston end of the third air cylinder 91 is connected to the second moving plate 93. The second moving plate 93 is provided with a second guide rod 92, and the lower end of the first moving plate 82 is provided with a guiding hole for movably connecting with the second guide rod 92. Through the telescopic action of the third air cylinder 91, the paint tank 55 can be driven to move vertically, so that the painting roller 54 can be immersed in the paint tank 55.

[0026] See Figure 4 , for the convenience of installation and disassembly of the paint tank 55, the second moving plate 93 is provided with a slot 931, and both sides of the paint tank 55 are provided with insertion blocks 551 for mating with the slot 931. The second moving plate 93 is provided with a fastener for fastening the insertion block 551. The fastener is a fastening bolt. The insertion block 551 and the slot 931 are provided with corresponding bolt holes. After the insertion block 551 is inserted into the slot 931, it can be fixed through the bolt holes.

[0027] See Figure 1 and Figure 2 , the delivery pipe 53 includes a first connecting pipe section 531, a corrugated pipe section 532 and a second connecting pipe section 533 connected in sequence. The first connecting pipe section 531 is connected to the paint pump 52, the second connecting pipe section 533 is communicated with the paint tank 55, and the second connecting pipe section 533 is fixed on the second moving plate 93 through a pipe clamp 5331. The corrugated pipe section 532 is telescopic, which is convenient for the movement of the painting roller 54.

[0028] In this embodiment, a liquid level gauge is provided in the paint liquid tank 55. The liquid level gauge is used to monitor the liquid level of the paint liquid tank 55. When the liquid level is less than the set value, the paint liquid pump 52 can automatically supplement the paint liquid.

[0029] During use, the plywood board is placed on the conveying mechanism 11, and the conveying mechanism 11 conveys the board to the defect detection mechanism 2 to detect the defect position. When a defect appears on the surface of the plywood, the coloring mechanism 5 is controlled to paint the defect position. Specifically, the X-axis traveling mechanism 41 and the Y-axis traveling mechanism control the coloring mechanism 5 to move above the defect position. The paint liquid pump 52 pumps the paint liquid in the paint liquid tank 51 into the paint liquid tank 55 through the conveying pipe 53. The second air cylinder 81 drives the paint liquid tank 55 to move horizontally to the lower part of the coloring paint roller. The third air cylinder 91 drives the paint liquid tank 55 to move upward so that the coloring paint roller 54 is immersed in the paint liquid in the paint liquid tank 55. Then the paint liquid tank 55 is reset in turn under the drive of the third air cylinder 91 and the second air cylinder 81. Then the turntable 43 drives the coloring paint roller 54 to rotate. The first air cylinder 63 extends to drive the coloring paint roller 54 to move downward to contact the surface of the board. The Y-axis traveling mechanism moves back and forth to drive the coloring paint to roll on the surface of the board, thereby realizing the coating of the defect position.

[0030] The above has generally described the present invention in detail. However, based on the present invention, some modifications or improvements can be made, which are obvious to those of ordinary skill in the art. Therefore, the modifications or improvements made without departing from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A surface inspection device for plywood, comprising a frame, a conveying mechanism disposed on the frame for conveying plywood, a defect detection mechanism disposed above the conveying mechanism, and a coloring mechanism located downstream of the defect detection mechanism, characterized in that: A gantry, a Y-axis walking mechanism that drives the gantry to move longitudinally along the frame, and an X-axis walking mechanism that is arranged on the gantry and moves horizontally along the frame are provided downstream of the defect detection mechanism. The coloring mechanism includes a coloring paint roller, a paint liquid tank, a paint liquid tank and a paint liquid pump. The paint liquid pump is connected to the paint liquid tank, and the paint liquid pump is connected to the paint liquid tank through a conveying pipe. A fixed plate is provided at the bottom of the walking seat of the X-axis walking mechanism, and a turntable is rotatably provided at the bottom of the fixed plate. A driving motor that drives the turntable to rotate is installed in the walking seat, and a Z-axis moving mechanism that drives the coloring paint roller to move in a vertical direction is provided at the bottom of the turntable. A vertical plate is provided at the rear end of the fixed plate, and a horizontal moving mechanism that can drive the paint liquid tank to move horizontally is provided on the vertical plate, so that the coloring paint roller and the paint liquid tank can correspond to each other, and a vertical moving mechanism that drives the paint liquid tank to move vertically is provided on the horizontal moving mechanism, so that the coloring paint roller can be immersed in the paint liquid tank.

2. The surface detection device for plywood according to claim 1, characterized in that: A buffer mechanism is also provided between the Z-axis moving mechanism and the coloring paint roller, and the buffer mechanism includes a sleeve, a movable rod and a buffer spring. The sleeve is provided at the bottom of the mounting plate, the movable rod is movably sleeved with the lower end of the sleeve, and the buffer spring is sleeved on the outside of the movable rod.

3. The surface detection device for plywood according to claim 2, characterized in that: The Z-axis moving mechanism includes a guiding mechanism and a first cylinder that pushes the coloring paint roller to move up and down. The first cylinder is arranged downward and fixed on the turntable. The lower end of the first cylinder is connected to the mounting plate. The guiding mechanism includes a guide tube and a first guide rod. The guide tube is arranged on both sides of the first cylinder. The guide rod is movably sleeved on the lower end of the sleeve. The lower end of the guide rod is connected to the seat of the coloring paint roller.

4. The surface detection device for plywood according to claim 1, characterized in that: The horizontal moving mechanism includes a second cylinder and a first moving plate. The second cylinder is horizontally fixed to the back of the lower end of the vertical plate. The piston end of the second cylinder is connected to the first moving plate. The first moving plate is slidably connected to the back of the vertical plate.

5. The surface detection device for plywood according to claim 4, characterized in that: The vertical moving mechanism includes a third cylinder and a second moving plate. The third cylinder is vertically arranged on the back of the first moving plate. The piston end of the third cylinder is connected to the second moving plate. The second moving plate is provided with a second guide rod. The lower end of the first moving plate is provided with a guide hole that is movably connected to the second guide rod.

6. The surface detection device for plywood according to claim 5, characterized in that: The second movable plate is provided with a slot, and plug blocks that cooperate with the slot are provided on both sides of the paint liquid tank. The second movable plate is provided with fasteners for fastening the plug blocks.

7. The surface detection device for plywood according to claim 5, characterized in that: The delivery pipe includes a first connecting pipe section, a corrugated pipe section and a second connecting pipe section which are connected in sequence, the first connecting pipe section is connected to the paint liquid pump, the second connecting pipe section is communicated with the paint liquid tank, and the second connecting pipe section is fixed to the second movable plate by a pipe clamp.

8. The surface detection device for plywood according to claim 1, characterized in that: A liquid level meter is arranged in the paint liquid tank.

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