Furniture material detecting and sampling device

Abstract

The invention relates to the technical field of plate detection, in particular to a furniture material detection sampling device which comprises a sampling assembly, the sampling assembly comprises an inner cutting cylinder, a middle cutting cylinder and an outer cutting cylinder which are coaxially and sequentially arranged from inside to outside, and an annular cutting edge is arranged at the lower end of the inner cutting cylinder and used for cutting a soft plate; a plurality of soft chopping knives are arranged at the lower end of the middle cutting cylinder in the circumferential direction and used for chopping soft plates. A plurality of hard cutting knives are arranged at the lower end of the outer cutting cylinder in the circumferential direction and used for cutting hard plates, the hard cutting knives comprise the fixed cutting knives and the movable cutting knives, the fixed cutting knives are fixedly arranged on the outer cutting cylinder, and the movable cutting knives can slide relative to the fixed cutting knives in the radial direction of the outer cutting cylinder. The annular cutting edge is in sliding fit with the movable cutting knife, so that the movable cutting knife can slide in the direction close to the inner circumferential surface of the outer cutting cylinder, and the sampling quality is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of plate material detection, in particular to a furniture material detection and sampling device. Background Art

[0002] Currently, most furniture materials are made of composite materials. To test the quality of composite materials, it is often necessary to drill and inspect core samples from the composite materials. For example, patent document CN112697496B discloses a formaldehyde detection device for furniture panels. The cutting mechanism includes a hollow, ring-shaped cutting blade that rotates at high speed to cut and sample the panel.

[0003] However, since the composite board is a multi-layer structure, different layers of boards have different hardness and softness, and the cutting knife has different drilling resistance when entering different layers of boards. This rotating cutting knife is prone to pulling burrs when cutting soft boards, thereby affecting the sampling quality of the core sample. Summary of the Invention

[0004] Based on this, it is necessary to provide a furniture material detection sampling device to address the technical problem of poor sampling quality of current sampling devices.

[0005] The above purpose is achieved through the following technical solutions: A furniture material detection sampling device comprises a column, a control arm and a tray are provided on the column, and the tray is used to place a composite board; a sampling assembly is provided on the control arm, and the sampling assembly comprises an inner cutting cylinder, a middle cutting cylinder and an outer cutting cylinder which are coaxial and arranged in sequence from the inside to the outside, and the axes of the inner cutting cylinder, the middle cutting cylinder and the outer cutting cylinder all extend in the up-down direction and can each move up-down relative to the control arm; the middle cutting cylinder and the outer cutting cylinder can rotate synchronously; the lower end of the inner cutting cylinder is provided with an annular cutting blade, and the annular cutting blade is used to cut soft boards; the lower end of the middle cutting cylinder is arranged in a circumferential direction A plurality of soft shredding knives are provided, and the soft shredding knives are used to shred soft plates; a plurality of hard cutting knives are provided around the circumferential direction of the lower end of the outer cutting cylinder, and the hard cutting knives are used to cut hard plates, and the hard cutting knives and the soft shredding knives are staggered in the circumferential direction of the outer cutting cylinder; the hard cutting knives include fixed cutting knives and movable cutting knives, the fixed cutting knives are fixedly arranged on the outer cutting cylinder, and the movable cutting knives can slide relative to the fixed cutting knives along the radial direction of the outer cutting cylinder; the annular cutting edge and the movable cutting knife are slidably matched, so that the movable cutting knife can slide toward the direction close to the inner circumferential surface of the outer cutting cylinder.

[0006] Further, a first inclined surface is provided on the outer peripheral surface of the annular cutting edge, and a second inclined surface is provided on the side surface of the movable cutting tool facing the inner cutting cylinder. The first inclined surface and the second inclined surface are arranged in parallel and both are inclined in the up and down direction. The sliding fit between the first inclined surface and the second inclined surface enables the movable cutting tool to slide away from the inner cutting cylinder.

[0007] Further, a compression spring is connected between the movable cutting tool and the fixed cutting tool. The compression spring has a tendency to make the movable cutting tool approach the inner cutting cylinder. In the initial state, the minimum diameter of the circle where the plurality of movable cutting tools are located is the same as the minimum diameter of the annular cutting edge.

[0008] Further, the middle cutting cylinder includes an upper rotating cylinder and a lower rotating cylinder. The lower rotating cylinder is coaxially rotatably sleeved at the lower end of the upper rotating cylinder. The soft cutting knives are located at the lower end of the lower rotating cylinder, and each soft cutting knife is composed of a plurality of blades overlapping in the radial direction of the middle cutting cylinder.

[0009] Further, a plurality of protrusions are provided around the circumference of the lower end of the upper rotating cylinder, and a plurality of inclined grooves are provided around the circumference of the upper end of the lower rotating cylinder. The inclined grooves are inclined in the up and down direction. The protrusions and the inclined grooves correspond to each other and are in sliding fit, so that the lower rotating cylinder can move up and down and rotate relative to the upper rotating cylinder.

[0010] Further, a plurality of first cutting knives are provided around the circumference of the lower end of the upper rotating cylinder, and the first cutting knives are used for cutting hard plates.

[0011] Further, a plurality of sliders are provided on the outer peripheral surface of the lower rotating cylinder, and a plurality of chutes extending in the up and down direction are provided on the inner peripheral surface of the outer cutting cylinder. The sliders and the chutes correspond to each other and are in sliding fit.

[0012] Further, a plurality of opening grooves are provided at the lower end of the outer cutting cylinder, the fixed cutting tools are fixedly arranged in the opening grooves, and a plurality of chip removal grooves are provided on the outer peripheral surface of the outer cutting cylinder. The chip removal grooves are spiral and correspond to and communicate with the opening grooves one by one.

[0013] Further, a dust-proof cover is coaxially sleeved outside the outer cutting cylinder. A suction port is provided on the dust-proof cover, and a suction fan is provided on the control arm. The suction fan is communicated with the suction port. An air inlet is provided on the upper rotating cylinder, and the air inlet is communicated with the outside air.

[0014] Further, a main shaft is provided on the control arm. An installation shell is rotatably sleeved outside the lower end of the main shaft. The main shaft can move up and down relative to the control arm to drive the installation shell to move up and down. A first gear is provided at the lower end of the main shaft. A second gear is provided above the upper rotating cylinder. Both the first gear and the second gear are rotatably arranged in the installation shell. The rotation of the main shaft drives the upper rotating cylinder to rotate synchronously through the first gear and the second gear. The installation shell is provided with a first telescopic cylinder and a second telescopic cylinder. The first telescopic cylinder is used to control the up and down movement of the inner cutting cylinder relative to the installation shell, and the second telescopic cylinder is used to drive the up and down movement of the outer cutting cylinder relative to the installation shell.

[0015] The beneficial effects of the present invention are as follows: For the furniture material detection and sampling device provided by the present invention, first, when sampling, first rotate the hard cutting tool of the outer cutting cylinder to cut the hard board. Then, when encountering a soft board, control the inner cutting cylinder to move downward so that the annular cutting edge of the inner cutting cylinder presses down to cut the soft board. The annular cutting edge can avoid pulling burrs on the soft board. At the same time, the annular cutting edge and the movable cutting tool are in sliding cooperation, so that the movable cutting tool slides in the direction close to the inner peripheral surface of the outer cutting cylinder, avoiding the influence of the movable cutting tool on the annular cutting edge, and realizing the alternate cutting of hard boards and soft boards. When changing from cutting a soft board to cutting a hard board, the soft shredding tool of the middle cutting cylinder shreds the soft board on the outer periphery of the inner cutting cylinder, so that the movable cutting tool of the outer cutting cylinder can approach the inner cutting cylinder again, facilitating the continuous cutting of the hard board and ensuring the flatness of the outer peripheral surface of the sample. In this way, the hard cutting tool of the outer cutting cylinder is used to cut the hard board, and the annular cutting edge of the inner cutting cylinder is used to cut the soft board, which can improve the sampling quality.

[0016] Secondly, in the final stage of sampling, the first cutting tool is used for rotary cutting. Since the first cutting tool is only provided with one layer, its thickness is thin. When it is used to cut the hard board, the stress can be reduced, so as to avoid cracking or burrs generated by the hard cutting tool when rotary cutting the hard board, and further improve the sampling quality.

[0017] Thirdly, by providing a chip removal groove and a suction fan, the chips can be discharged and collected in time, avoiding the deterioration caused by the frequent friction of the chips in the cutting gap, facilitating the subsequent analysis and detection of the chips, and improving the sampling and detection quality. Description of the Drawings

[0018] Figure 1 It is a three-dimensional structure schematic diagram of a furniture material detection and sampling device provided by an embodiment of the present invention; Figure 2 It is a side view schematic diagram of a furniture material detection and sampling device provided by an embodiment of the present invention; Figure 3 It is Figure 2Cross-sectional view A-A; Figure 4 Partial structural schematic diagram of a furniture material detection and sampling device provided by an embodiment of the present invention; Figure 5 Structural schematic diagram of a sampling component in a furniture material detection and sampling device provided by an embodiment of the present invention; Figure 6 Exploded schematic diagram of a sampling component in a furniture material detection and sampling device provided by an embodiment of the present invention; Figure 7 Side view schematic diagram of a sampling component in a furniture material detection and sampling device provided by an embodiment of the present invention; Figure 8 is Figure 7 Cross-sectional view B-B (the sampling component is in the first state); Figure 9 Schematic diagram of the second state of a sampling component in a furniture material detection and sampling device provided by an embodiment of the present invention; Figure 10 Schematic diagram of the third state of a sampling component in a furniture material detection and sampling device provided by an embodiment of the present invention; Figure 11 Schematic diagram of the fourth state of a sampling component in a furniture material detection and sampling device provided by an embodiment of the present invention; Figure 12 Exploded structure diagram of a cutting cylinder in a furniture material detection and sampling device provided by an embodiment of the present invention; Figure 13 Structural schematic diagram of an outer cutting cylinder in a furniture material detection and sampling device provided by an embodiment of the present invention; Figure 14 Side view schematic diagram of an outer cutting cylinder in a furniture material detection and sampling device provided by an embodiment of the present invention; Figure 15 is Figure 14 Cross-sectional view C-C; Figure 16 is Figure 9 Enlarged view of the structure at D in the middle.

[0019] Wherein: 100, Column; 101, Control Arm; 102, Spindle; 1021, First Gear; 103, Tray; 200, Base; 300, Sampling Assembly; 302, Second Telescopic Cylinder; 303, First Telescopic Cylinder; 304, Inner Cutting Cylinder; 3041, Ring Cutting Edge; 305, Middle Cutting Cylinder; 3051, Upper Rotating Cylinder; 30511, First Cutting Knife; 30512, Protrusion; 30513, Second Gear; 30514, Air Inlet; 3052, Lower Rotating Cylinder; 30521, Slide Block; 30522, Soft Shredding Knife; 30523, Inclined Groove; 306, Outer Cutting Cylinder; 3061, Fixed Cutting Knife; 3062, Movable Cutting Knife; 3063, Chip Discharge Groove; 3064, Slide Groove; 400, Dust Cover; 401, Suction Port. Detailed Embodiment

[0020] In order to make the objectives, technical solutions and advantages of the present invention clearer, the following further elaborates on the present invention through embodiments in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0021] The serial numbers assigned to the components herein, such as "first", "second", etc., are only used to distinguish the described objects and do not have any sequential or technical meanings. The "connection" and "coupling" mentioned in the present invention, unless otherwise clearly specified and defined, both include direct and indirect connections (couplings). In the description of the present invention, it should be understood that the orientation or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. are based on the orientation or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention.

[0022] In the present invention, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on" the second feature can be that the first feature is directly above or obliquely above the second feature, or simply indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "under" the second feature can be that the first feature is directly below or obliquely below the second feature, or simply indicates that the first feature has a lower horizontal height than the second feature.

[0023] As Figures 1 to 16As shown in the figure, a furniture material detection and sampling device provided by an embodiment of the present invention includes a column 100, which is supported on a base 200. A control arm 101 and a tray 103 are provided on the column 100. The tray 103 can slide up and down along the column 100, and the tray 103 is used to place composite boards. A sampling component 300 is provided on the control arm 101. The sampling component 300 includes an inner cutting cylinder 304, a middle cutting cylinder 305, and an outer cutting cylinder 306 that are coaxially arranged from inside to outside in sequence. The axes of the inner cutting cylinder 304, the middle cutting cylinder 305, and the outer cutting cylinder 306 all extend in the up and down direction, and each can move up and down relative to the control arm 101. The middle cutting cylinder 305 and the outer cutting cylinder 306 can rotate synchronously. A circular cutting edge 3041 is provided at the lower end of the inner cutting cylinder 304, and the circular cutting edge 3041 is used to cut soft boards. A plurality of soft cutting knives 30522 are provided around the circumference at the lower end of the middle cutting cylinder 305, and the soft cutting knives 30522 are used to cut and shred soft boards. A plurality of hard cutting knives are provided around the circumference at the lower end of the outer cutting cylinder 306, and the hard cutting knives are used to cut hard boards. The hard cutting knives and the soft cutting knives 30522 are arranged staggeredly in the circumferential direction of the outer cutting cylinder 306. The hard cutting knives include fixed cutting knives 3061 and movable cutting knives 3062. The fixed cutting knives 3061 are fixedly arranged on the outer cutting cylinder 306 and protrude from the outer peripheral surface of the outer cutting cylinder 306. The movable cutting knives 3062 can slide radially relative to the fixed cutting knives 3061 along the outer cutting cylinder 306, and the movable cutting knives 3062 protrude from the inner peripheral surface of the outer cutting cylinder 306. The circular cutting edge 3041 is in sliding fit with the movable cutting knives 3062, and can make the movable cutting knives 3062 slide in the direction close to the inner peripheral surface of the outer cutting cylinder 306.

[0024] Among them, the composite board is composed of at least three layers of boards. The two outermost layers are both hard boards, and the middle layer includes at least one layer of soft board.

[0025] When sampling, first rotate the hard cutting tool of the outer cutting cylinder 306 to cut the hard plate. Then, when encountering a soft plate, control the inner cutting cylinder 304 to move downward, so that the annular cutting edge 3041 of the inner cutting cylinder 304 presses down to cut the soft plate. The annular cutting edge 3041 can avoid pulling burrs on the soft plate. At the same time, the annular cutting edge 3041 and the movable cutting tool 3062 are in sliding fit, so that the movable cutting tool 3062 slides towards the direction close to the inner peripheral surface of the outer cutting cylinder 306, avoiding the influence of the movable cutting tool 3062 on the annular cutting edge 3041, and realizing the alternating cutting of hard plates and soft plates. When changing from cutting a soft plate to cutting a hard plate, the soft cutting tool 30522 of the middle cutting cylinder 305 cuts up the soft plate on the outer periphery of the inner cutting cylinder 304, so that the movable cutting tool 3062 of the outer cutting cylinder 306 can approach the inner cutting cylinder 304 again, thus facilitating the continuous cutting of the hard plate and ensuring the flatness of the outer peripheral surface of the sample. In this way, the hard cutting tool of the outer cutting cylinder 306 is used for rotary cutting of the hard plate, and the annular cutting edge 3041 of the inner cutting cylinder 304 is used for pressing cutting of the soft plate, thereby improving the sampling quality.

[0026] As Figure 16 shown, a first inclined surface is provided on the outer peripheral surface of the annular cutting edge 3041, and a second inclined surface is provided on the side surface of the movable cutting tool 3062 facing the inner cutting cylinder 304. The first inclined surface and the second inclined surface are arranged in parallel and both are inclined in the up and down direction. The sliding fit between the first inclined surface and the second inclined surface can make the movable cutting tool 3062 slide away from the inner cutting cylinder 304.

[0027] A compression spring (not shown in the figure) is connected between the movable cutting tool 3062 and the fixed cutting tool 3061. The compression spring has a tendency to make the movable cutting tool 3062 approach the inner cutting cylinder 304. In the initial state, the minimum diameter of the circle where multiple movable cutting tools 3062 are located is the same as the minimum diameter of the annular cutting edge 3041. This ensures that the diameters of the samples cut by the movable cutting tool 3062 and the annular cutting edge 3041 are the same, and keeps the outer peripheral surface of the sample flat.

[0028] As Figure 12 shown, the middle cutting cylinder 305 includes an upper rotating cylinder 3051 and a lower rotating cylinder 3052. The lower rotating cylinder 3052 is coaxially rotatably sleeved at the lower end of the upper rotating cylinder 3051. The soft cutting tool 30522 is located at the lower end of the lower rotating cylinder 3052. Each soft cutting tool 30522 is composed of multiple blades overlapping in the radial direction of the middle cutting cylinder 305. In this way, the cutting effect of the multiple overlapping blades on the soft plate is better.

[0029] A plurality of protrusions 30512 are provided at the lower end of the upper rotating cylinder 3051 around its circumferential direction. A plurality of inclined grooves 30523 are provided at the upper end of the lower rotating cylinder 3052 around its circumferential direction. The inclined grooves 30523 are inclined in the up and down direction. The protrusions 30512 and the inclined grooves 30523 correspond to each other one by one and are in sliding fit, so that the lower rotating cylinder 3052 can move up and down and rotate relative to the upper rotating cylinder 3051. In this way, the rotational connection between the upper rotating cylinder 3051 and the lower rotating cylinder 3052 is realized through the protrusions 30512 and the inclined grooves 30523, and the structure is simple and convenient for processing.

[0030] A plurality of first cutting blades 30511 are provided at the lower end of the upper rotating cylinder 3051 around its circumferential direction. The first cutting blades 30511 are used for cutting hard plates. Among them, the blade shapes of the first cutting blades 30511 and the soft cutting blades 30522 are the same, and the lower ends are sharp-angled. The first cutting blades 30511 are only arranged in one layer, so that their thickness is thin. When they are used to cut the last layer of hard plates, the stress can be reduced, so as to avoid cracking or burrs when the hard cutting blades rotate to cut the hard plates, and further improve the sampling quality.

[0031] As Figure 12 and Figure 13 As shown, a plurality of sliders 30521 are provided on the outer peripheral surface of the lower rotating cylinder 3052. A plurality of chutes 3064 extending in the up and down direction are provided on the inner peripheral surface of the outer cutting cylinder 306. The sliders 30521 and the chutes 3064 correspond to each other one by one and are in sliding fit. In this way, the inner cutting cylinder 304 and the outer cutting cylinder 306 can move up and down relative to each other, which is convenient for the separate up and down movement of the inner cutting cylinder 304 and the outer cutting cylinder 306.

[0032] A plurality of opening grooves are provided at the lower end of the outer cutting cylinder 306. The fixed cutting blades 3061 are fixedly arranged in the opening grooves. A plurality of chip discharge grooves 3063 are provided on the outer peripheral surface of the outer cutting cylinder 306. The chip discharge grooves 3063 are spiral and correspond to and communicate with the opening grooves one by one. During the rotation of the outer cutting cylinder 306, the chips will enter the opening grooves, and then enter the chip discharge grooves 3063 from the opening grooves, realizing the outward discharge of the chips and ensuring the smooth progress of the cutting process.

[0033] As Figure 3As shown, a dust-proof cover 400 is coaxially sleeved outside the outer cutting cylinder 306. A suction port 401 is provided on the dust-proof cover 400. A suction fan (not shown in the figure) is provided on the control arm 101, and the suction fan is communicated with the suction port 401. An air inlet 30514 is provided on the upper rotating cylinder 3051, and the air inlet 30514 is communicated with the outside air. In this way, during the sampling process, the suction fan is started to suck the inside of the dust-proof cover 400, so that the debris in the chip discharge groove 3063 on the outer cutting cylinder 306 can be sucked to the outside of the dust-proof cover 400. Since the debris can also be used for plate detection, the debris can be discharged and collected in time, avoiding deterioration caused by frequent friction of the debris in the cutting gap, which is convenient for subsequent analysis and detection of the debris.

[0034] As Figures 1 to 4 shown, a main shaft 102 is provided on the control arm 101. An installation shell is rotatably sleeved outside the lower end of the main shaft 102. The main shaft 102 can move up and down relative to the control arm 101 to drive the installation shell to move up and down. A first gear 1021 is provided at the lower end of the main shaft 102. A second gear 30513 is provided above the upper rotating cylinder 3051. Both the first gear 1021 and the second gear 30513 are rotatably arranged in the installation shell. The rotation of the main shaft 102 drives the upper rotating cylinder 3051 to rotate synchronously through the first gear 1021 and the second gear 30513. A first telescopic cylinder 303 and a second telescopic cylinder 302 are provided on the installation shell. The first telescopic cylinder 303 is used to control the up and down movement of the inner cutting cylinder 304 relative to the installation shell, and the second telescopic cylinder 302 is used to drive the up and down movement of the outer cutting cylinder 306 relative to the installation shell.

[0035] In this way, the main shaft 102 drives the middle cutting cylinder 305 to move up and down, the first telescopic cylinder 303 controls the up and down movement of the inner cutting cylinder 304, and the second telescopic cylinder 302 drives the up and down movement of the outer cutting cylinder 306, realizing the up and down movement of each of the three cutting cylinders; at the same time, the main shaft 102 drives the middle cutting cylinder 305 and the outer cutting cylinder 306 to rotate synchronously.

[0036] As Figure 1 and Figure 2 shown, a driving motor is provided above the control arm 101, and the driving motor is used to control the rotation of the main shaft 102. A driving handwheel is also provided on the control arm 101. The driving handwheel is in gear engagement with the main shaft 102, so as to be able to control the up and down movement of the main shaft 102. A sliding rod is fixedly provided on the installation shell. The sliding rod can slide up and down along the control arm 101. A marking block is provided on the sliding rod. A scale line is also provided on the control arm 101. By observing the position of the marking block on the scale line, the sampling cutting depth can be judged.

[0037] Combined with the above embodiments, the use principle and working process of the embodiments of the present invention are as follows: Assume that the composite sheet consists of five layers, namely hard sheet-soft sheet-hard sheet-soft sheet-hard sheet.

[0038] First, adjust the position of the tray 103 on the column 100, and then place the composite board on the tray 103. By controlling the main shaft 102 to move downward, the mounting shell is driven downward, so that the mounting shell and the sampling assembly 300 are moved downward to the upper surface of the composite board. Then, the suction fan is turned on to suck the inside of the dust cover 400.

[0039] Initially, if Figure 8 As shown, the sampling assembly 300 is in the first state. The minimum diameter of the circle containing the multiple movable cutting blades 3062 on the outer cutting cylinder 306 is equal to the minimum diameter of the annular cutting edge 3041 of the inner cutting cylinder 304. The protrusion 30512 on the upper rotating cylinder 3051 is located above the inclined groove 30523 on the lower rotating cylinder 3052. The first layer of the composite board is a hard board. At this time, the main shaft 102 is controlled to rotate in the forward direction, so that the main shaft 102 drives the upper rotating cylinder 3051 to rotate synchronously through the first gear 1021 and the second gear 30513. The rotation direction of the upper rotating cylinder 3051 is clockwise ( Figure 6 (Seen from top to bottom in the figure), the upper rotating cylinder 3051 drives the lower rotating cylinder 3052 to rotate synchronously clockwise, and the lower rotating cylinder 3052 drives the outer cutting cylinder 306 to rotate synchronously clockwise, so that the hard cutting blade at the lower end of the outer cutting cylinder 306 rotates and cuts the hard plate. After cutting, the hard cutting blade enters the soft plate, at which time the main shaft 102 stops rotating, and the inner cutting cylinder 304 moves downward by controlling the first telescopic cylinder 303, as shown in FIG. Figure 9 As shown, the sampling assembly 300 is in the second state, in which the annular cutting blade 3041 on the inner cutting cylinder 304 presses down on the soft sheet material to cut and sample, without causing burrs on the soft sheet material. As the inner cutting cylinder 304 moves downward, the first inclined surface of the annular cutting blade 3041 slides with the second inclined surface of the movable cutting blade 3062, causing the movable cutting blade 3062 to slide away from the inner cutting cylinder 304, preventing the movable cutting blade 3062 from interfering with the cutting action of the annular cutting blade 3041.

[0040] After the soft sheet is cut, the next layer is the hard sheet. At this time, the main shaft 102 is controlled to move downward to move the upper rotating cylinder 3051 downward, and the upper rotating cylinder 3051 drives the lower rotating cylinder 3052 to move downward synchronously. Figure 10As shown, the sampling assembly 300 is in the third state. Then, the main shaft 102 is controlled to rotate forward, causing the upper rotating cylinder 3051 and the lower rotating cylinder 3052 to rotate clockwise synchronously. The soft cutting knife 30522 on the lower rotating cylinder 3052 will cut up the soft material on the outer periphery of the inner cutting cylinder 304, which facilitates the movable cutting knife 3062 of the outer cutting cylinder 306 to approach the inner cutting cylinder 304 again, so as to continue cutting the hard board conveniently and ensure the flatness of the outer peripheral surface of the sample.

[0041] Then, the second telescopic cylinder 302 is controlled to move the outer cutting cylinder 306 downward onto the hard board. The movable cutting knife 3062 on the outer cutting cylinder 306 pushes away the soft debris and resets under the action of the compression spring. At this time, the main shaft 102 is controlled to rotate forward, driving the middle cutting cylinder 305 and the outer cutting cylinder 306 to rotate clockwise synchronously, and realizing the rotary cutting of the hard board again.

[0042] Then, repeating the above steps can realize the alternate cutting and sampling of the hard board and the soft board.

[0043] When cutting the last layer of the hard board, when the hard cutting knife of the outer cutting cylinder 306 rotates and cuts the hard board until it is about to be cut off, such as when there is still one-tenth of the thickness remaining, the main shaft 102 is stopped from rotating, and the outer cutting cylinder 306 no longer cuts the remaining thickness of the hard board. Then, the main shaft 102 is driven to rotate in the reverse direction, causing the upper rotating cylinder 3051 and the lower rotating cylinder 3052 to rotate counterclockwise synchronously. Furthermore, the protrusion 30512 on the upper rotating cylinder 3051 will enter below the inclined groove 30523 on the lower rotating cylinder 3052, causing the lower rotating cylinder 3052 to move upward relative to the upper rotating cylinder 3051, so that the first cutting knife 30511 can protrude from the bottom of the lower rotating cylinder 3052. As Figure 11 shown, the sampling assembly 300 is in the fourth state. At this time, the rotating first cutting knife 30511 can rotate and cut the remaining thickness of the hard board. Since only one layer of the first cutting knife 30511 is provided, its thickness is thin. When it is used to cut off the last layer of the hard board, the stress can be reduced, thus avoiding the chipping or burrs generated by the hard cutting knife when cutting off the hard board, and further improving the sampling quality.

[0044] Since the diameter of the circle where the first cutting knife 30511 is located is greater than the minimum diameter of the annular cutting edge 3041, a ring-shaped step will be formed on the sample. Finally, the first telescopic cylinder 303 is controlled again to press down the annular cutting edge 3041 of the inner cutting cylinder 304 to cut off this ring-shaped step, and a flat sample can be obtained.

[0045] In addition, during the cutting process, the suction fan can be turned on. The debris generated by cutting will enter the chip discharge groove 3063 on the outer cutting cylinder 306, and will be discharged from the outside of the dust-proof cover 400 and collected under the suction of the suction fan. Finally, the sample and the debris can be detected and analyzed.

[0046] The technical features of the above embodiments can be combined arbitrarily. For the sake of concise description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0047] The above-described embodiments merely represent several implementation manners of the present invention. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A furniture material detection and sampling device, characterized in that, It includes a column, on which a control arm and a tray are provided, and the tray is used for placing composite boards; a sampling component is provided on the control arm, and the sampling component includes an inner cutting cylinder, a middle cutting cylinder and an outer cutting cylinder which are coaxially arranged from inside to outside in sequence. The axes of the inner cutting cylinder, the middle cutting cylinder and the outer cutting cylinder all extend in the up and down direction, and each can move up and down relative to the control arm; the middle cutting cylinder and the outer cutting cylinder can rotate synchronously; A circular cutting edge is provided at the lower end of the inner cutting cylinder, and the circular cutting edge is used for cutting soft boards; A plurality of soft shredding knives are provided at the lower end of the middle cutting cylinder in the circumferential direction, and the soft shredding knives are used for shredding soft boards; A plurality of hard cutting knives are provided at the lower end of the outer cutting cylinder in the circumferential direction, and the hard cutting knives are used for cutting hard boards. The hard cutting knives and the soft shredding knives are arranged staggeredly in the circumferential direction of the outer cutting cylinder; the hard cutting knives include fixed cutting knives and movable cutting knives. The fixed cutting knives are fixedly arranged on the outer cutting cylinder, and the movable cutting knives can slide radially relative to the fixed cutting knives along the outer cutting cylinder; the circular cutting edge is in sliding fit with the movable cutting knives, and can make the movable cutting knives slide towards the direction close to the inner peripheral surface of the outer cutting cylinder.

2. The furniture material detection and sampling device according to claim 1, characterized in that, A first inclined surface is provided on the outer peripheral surface of the circular cutting edge, and a second inclined surface is provided on the side surface of the movable cutting knife facing the inner cutting cylinder. The first inclined surface and the second inclined surface are arranged in parallel and both incline in the up and down direction. The sliding fit between the first inclined surface and the second inclined surface can make the movable cutting knives slide away from the inner cutting cylinder.

3. The furniture material detection and sampling device according to claim 2, characterized in that, A compression spring is connected between the movable cutting knives and the fixed cutting knives, and the compression spring has a tendency to make the movable cutting knives close to the inner cutting cylinder; in the initial state, the minimum diameter of the circle where the plurality of movable cutting knives are located is the same as the minimum diameter of the circular cutting edge.

4. The furniture material detection sampling device according to claim 1, characterized in that, The middle cutting cylinder includes an upper rotating cylinder and a lower rotating cylinder. The lower rotating cylinder is coaxially rotatably sleeved at the lower end of the upper rotating cylinder; the soft shredding knives are located at the lower end of the lower rotating cylinder, and each soft shredding knife is composed of a plurality of blades overlapping in the radial direction of the middle cutting cylinder.

5. The furniture material detection sampling device according to claim 4, wherein, A plurality of protrusions are provided at the lower end of the upper rotating cylinder in its circumferential direction, and a plurality of inclined grooves are provided at the upper end of the lower rotating cylinder in its circumferential direction. The inclined grooves incline in the up and down direction. The protrusions and the inclined grooves correspond to each other and are in sliding fit, so that the lower rotating cylinder can move up and down and rotate relative to the upper rotating cylinder.

6. The furniture material detection sampling device according to claim 5, wherein, A plurality of first cutting knives are provided at the lower end of the upper rotating cylinder in its circumferential direction, and the first cutting knives are used for cutting hard boards.

7. The furniture material detection sampling device according to claim 6, wherein A plurality of sliders are provided on the outer peripheral surface of the lower rotating cylinder, and a plurality of chutes extending in the up and down direction are provided on the inner peripheral surface of the outer cutting cylinder. The sliders and the chutes correspond to each other and are in sliding fit.

8. The furniture material detection sampling device according to claim 1, characterized in that, A plurality of opening grooves are provided at the lower end of the outer cutting cylinder, and the fixed cutting knives are fixedly arranged in the opening grooves. A plurality of chip discharge grooves are provided on the outer peripheral surface of the outer cutting cylinder. The chip discharge grooves are spiral and correspond to and communicate with the opening grooves one by one.

9. The furniture material testing and sampling device according to claim 4, wherein A dust-proof cover is coaxially sleeved outside the outer cutting cylinder. A suction port is provided on the dust-proof cover, and a suction fan is provided on the control arm. The suction fan is communicated with the suction port; an air inlet is provided on the upper rotating cylinder, and the air inlet is communicated with the outside air.

10. The furniture material detection sampling device according to claim 9, characterized in that, A main shaft is provided on the control arm. An installation shell is rotatably sleeved outside the lower end of the main shaft. The main shaft can move up and down relative to the control arm to drive the installation shell to move up and down. A first gear is provided at the lower end of the main shaft. A second gear is provided above the upper rotating cylinder. The first gear and the second gear are both rotatably arranged in the installation shell. The rotation of the main shaft drives the upper rotating cylinder to rotate synchronously through the first gear and the second gear. A first telescopic cylinder and a second telescopic cylinder are provided on the installation shell. The first telescopic cylinder is used to control the up and down movement of the inner cutting cylinder relative to the installation shell. The second telescopic cylinder is used to drive the up and down movement of the outer cutting cylinder relative to the installation shell.

Images