Furniture material detection and sampling device

Abstract

The present invention relates to the technical field of plate detection, and specifically to a furniture material detection sampling device, including a sampling component, wherein the sampling component includes an inner cutting cylinder, a middle cutting cylinder and an outer cutting cylinder that are coaxially arranged in sequence from the inside to the outside, the lower end of the inner cutting cylinder is provided with an annular cutting edge, and the annular cutting edge is used to cut soft plate materials; the lower end of the middle cutting cylinder is provided with a plurality of soft shredding knives around the circumferential direction, and the soft shredding knives are used to shred soft plate materials; the lower end of the outer cutting cylinder is provided with a plurality of hard cutting knives around the circumferential direction, and the hard cutting knives are used to cut hard plate materials, and the hard cutting knives include a fixed cutting knife and a movable cutting knife, the fixed cutting knife is fixedly arranged on the outer cutting cylinder, and the movable cutting knife can slide relative to the fixed cutting knife along the radial direction of the outer cutting cylinder, and 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, thereby improving the sampling quality.

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:

[0006] 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.

[0007] Furthermore, the outer peripheral surface of the annular cutting blade is provided with a first bevel, and the side of the movable cutting knife facing the inner cutting cylinder is provided with a second bevel. The first bevel and the second bevel are arranged in parallel and are both inclined in the up and down directions. The sliding cooperation between the first bevel and the second bevel can enable the movable cutting knife to slide in the direction away from the inner cutting cylinder.

[0008] Furthermore, a compression spring is connected between the movable cutter and the fixed cutter, and the compression spring has a tendency to make the movable cutter close to the inner cutting cylinder; in the initial state, the minimum diameter of the circle where the multiple movable cutters are located is the same as the minimum diameter of the annular cutting edge.

[0009] Furthermore, the middle cutting cylinder includes an upper rotating cylinder and a lower rotating cylinder, and the lower rotating cylinder is coaxially rotatable and sleeved on the lower end of the upper rotating cylinder; the soft chopping knife is located at the lower end of the lower rotating cylinder, and each soft chopping knife is composed of multiple blades overlappingly arranged along the radial direction of the middle cutting cylinder.

[0010] Furthermore, the lower end of the upper rotating cylinder is provided with a plurality of protrusions around its circumferential direction, and the upper end of the lower rotating cylinder is provided with a plurality of inclined grooves around its circumferential direction. The inclined grooves are inclined in the up and down directions, and the protrusions correspond to the inclined grooves one by one and slide together, so that the lower rotating cylinder can move up and down and rotate relative to the upper rotating cylinder.

[0011] Furthermore, 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.

[0012] Furthermore, the outer circumference of the lower rotating cylinder is provided with a plurality of sliding blocks, and the inner circumference of the outer cutting cylinder is provided with a plurality of sliding grooves extending in the up-down direction, and the sliding blocks correspond to the sliding grooves one by one and slide in cooperation with each other.

[0013] Furthermore, the lower end of the outer cutting cylinder is provided with a plurality of open grooves, the fixed cutting blade is fixed in the open grooves, and the outer peripheral surface of the outer cutting cylinder is provided with a plurality of chip removal grooves, which are spiral and correspond to and communicate with the open grooves one by one.

[0014] Furthermore, the outer coaxial sleeve of the outer cutting cylinder is provided with a dust cover, the dust cover is provided with a suction port, the control arm is provided with a suction fan, and the suction fan is connected to the suction port; the upper rotating cylinder is provided with an air inlet, and the air inlet is connected to the outside air.

[0015] Furthermore, a main shaft is provided on the control arm, and a mounting shell is provided on the external rotating sleeve of the lower end of the main shaft. The main shaft can move up and down relative to the control arm, thereby driving the mounting shell to move up and down. A first gear is provided at the lower end of the main shaft, and a second gear is provided above the upper rotating cylinder. The first gear and the second gear are both rotatably arranged in the mounting shell, and 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 mounting shell, and the first telescopic cylinder is used to control the inner cutting cylinder to move up and down relative to the mounting shell, and the second telescopic cylinder is used to drive the outer cutting cylinder to move up and down relative to the mounting shell.

[0016] The beneficial effects of the present invention are:

[0017] The furniture material detection sampling device provided by the present invention has the following characteristics: first, when sampling, the hard cutting blade of the outer cutting cylinder is first rotated to cut the hard plate; then, when encountering a soft plate, the inner cutting cylinder is controlled to move downward, so that the annular cutting edge of the inner cutting cylinder presses down to cut the soft plate, and the annular cutting edge can avoid pulling burrs on the soft plate; at the same time, the annular cutting edge and the movable cutting blade slide together, so that the movable cutting blade slides toward the inner circumference of the outer cutting cylinder, avoiding the movable cutting blade from affecting the annular cutting edge, thereby achieving alternating cutting of hard and soft plates; when switching from cutting soft plates to cutting hard plates, the soft cutting blade of the middle cutting cylinder is used to cut the soft plates on the outer circumference of the inner cutting cylinder, so that the movable cutting blade of the outer cutting cylinder can re-approach the inner cutting cylinder, thereby facilitating the continuation of cutting the hard plates and ensuring the flatness of the outer circumference of the sample. In this way, the hard plates are cut by the hard cutting blade of the outer cutting cylinder, and the soft plates are cut by the annular cutting edge of the inner cutting cylinder, which can improve the sampling quality.

[0018] Secondly, in the final stage of sampling, the first cutting knife is used for rotary cutting. Since the first cutting knife is only provided with one layer and its thickness is thin, when it is used to cut hard plates, it can reduce stress, thereby avoiding the hard cutting knife from cracking or burring when rotating and cutting hard plates, further improving the sampling quality.

[0019] Third, by setting up a chip discharge groove and a suction fan, the debris can be discharged and collected in time, avoiding the deterioration of the debris due to frequent friction in the cutting gap, facilitating the subsequent analysis and detection of the debris, and improving the quality of sampling and detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic diagram of the three-dimensional structure of a furniture material detection and sampling device provided by one embodiment of the present invention;

[0021] Figure 2 A schematic side view of a furniture material detection and sampling device provided by one embodiment of the present invention;

[0022] Figure 3 for Figure 2 Middle AA section view;

[0023] Figure 4 A schematic diagram of a portion of the structure of a furniture material detection and sampling device provided in one embodiment of the present invention;

[0024] Figure 5 A schematic structural diagram of a sampling assembly in a furniture material detection and sampling device provided in one embodiment of the present invention;

[0025] Figure 6 An exploded schematic diagram of a sampling assembly in a furniture material detection and sampling device provided by one embodiment of the present invention;

[0026] Figure 7 A schematic side view of a sampling assembly in a furniture material detection and sampling device provided in one embodiment of the present invention;

[0027] Figure 8 for Figure 7 Middle BB cross-sectional view (sampling assembly in the first state);

[0028] Figure 9 A schematic diagram of a second state of a sampling component in a furniture material detection and sampling device provided by an embodiment of the present invention;

[0029] Figure 10 A schematic diagram of a third state of a sampling component in a furniture material detection and sampling device provided by an embodiment of the present invention;

[0030] Figure 11 A schematic diagram of a fourth state of a sampling component in a furniture material detection and sampling device provided by an embodiment of the present invention;

[0031] Figure 12 An exploded diagram of the structure of the cutting cylinder in the furniture material detection and sampling device provided by one embodiment of the present invention;

[0032] Figure 13 A schematic structural diagram of an outer cutting cylinder in a furniture material detection and sampling device provided by one embodiment of the present invention;

[0033] Figure 14 A schematic side view of an outer cutting cylinder in a furniture material detection and sampling device provided by one embodiment of the present invention;

[0034] Figure 15 for Figure 14 Middle CC section view;

[0035] Figure 16 for Figure 9 Enlarged view of the structure at point D in the middle.

[0036] in:

[0037] 100. Column; 101. Control arm; 102. Main shaft; 1021. First gear; 103. Tray; 200. Base; 300. Sampling assembly; 302. Second telescopic cylinder; 303. First telescopic cylinder; 304. Inner cutting cylinder; 3041. Annular cutting blade; 305. Middle cutting cylinder; 3051. Upper rotating cylinder; 30511. First cutting blade; 30512. Protrusion; 30513. Second gear; 30514. Air inlet; 3052. Lower rotating cylinder; 30521. Slider; 30522. Soft chopping blade; 30523. Chute; 306. Outer cutting cylinder; 3061. Fixed cutting blade; 3062. Movable cutting blade; 3063. Chip groove; 3064. Slide; 400. Dust cover; 401. Suction port. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below through embodiments and 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 intended to limit the present invention.

[0039] The serial numbers assigned to components herein, such as "first," "second," etc., are used solely to distinguish the objects being described and do not convey any sequential or technical meaning. References to "connection" and "coupling" herein, unless otherwise specified, include both direct and indirect connections (couplings). In the description of the present invention, it should be understood that terms such as "upper," "lower," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise" indicate positions or relationships based on those shown in the accompanying drawings. These terms are intended solely to facilitate the description of the present invention and simplify the description. They are not intended to indicate or imply that the device or component being referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention.

[0040] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0041] like Figures 1 to 16As shown, an embodiment of the present invention provides a furniture material detection sampling device, including a column 100, the column 100 is supported and arranged on a base 200, the column 100 is provided with a control arm 101 and a tray 103, the tray 103 can slide up and down along the column 100, and the tray 103 is used to place composite boards; the control arm 101 is provided with a sampling assembly 300, the sampling assembly 300 includes an inner cutting cylinder 304, a middle cutting cylinder 305 and an outer cutting cylinder 306 that are coaxial and arranged in sequence from the inside to the outside, 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 can each move up and down relative to the control arm 101; the middle cutting cylinder 305 and the outer cutting cylinder 306 can rotate synchronously; the lower end of the inner cutting cylinder 304 is provided with an annular cutting blade 3041, the annular cutting blade 3041 is used to cut soft boards; the lower end of the middle cutting cylinder 305 A plurality of soft shredding knives 30522 are provided in the circumferential direction, and the soft shredding knives 30522 are used to shred soft plates; a plurality of hard cutting knives are provided in the circumferential direction at the lower end of the outer cutting cylinder 306, and the hard cutting knives are used to cut hard plates. The hard cutting knives and the soft shredding knives 30522 are staggered in the circumferential direction of the outer cutting cylinder 306; the hard cutting knives include a fixed cutting knife 3061 and a movable cutting knife 3062, the fixed cutting knife 3061 is fixedly provided on the outer cutting cylinder 306 and extends from the outer circumferential surface of the outer cutting cylinder 306, and the movable cutting knife 3062 can slide relative to the fixed cutting knife 3061 along the radial direction of the outer cutting cylinder 306, and the movable cutting knife 3062 extends from the inner circumferential surface of the outer cutting cylinder 306; the annular cutting edge 3041 slides in cooperation with the movable cutting knife 3062, so that the movable cutting knife 3062 can slide toward the direction close to the inner circumferential surface of the outer cutting cylinder 306.

[0042] The composite board is composed of at least three layers of board, the two outermost layers are both hard board, and the middle layer includes at least one layer of soft board.

[0043] When sampling, the hard cutting blade of the outer cutting cylinder 306 is first rotated to cut the hard plate. Then, when encountering a soft plate, the inner cutting cylinder 304 is controlled 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 blade 3062 are slidably matched, so that the movable cutting blade 3062 slides in the direction close to the inner circumference of the outer cutting cylinder 306, avoiding the movable cutting blade 3062 from affecting the annular cutting edge 3041, thereby achieving alternating cutting of hard and soft plates; when switching from cutting soft plates to cutting hard plates, the soft cutting blade 30522 of the middle cutting cylinder 305 cuts the soft plate on the outer circumference of the inner cutting cylinder 304, so that the movable cutting blade 3062 of the outer cutting cylinder 306 can re-approach the inner cutting cylinder 304, thereby facilitating the continued cutting of the hard plate and ensuring the flatness of the outer circumference of the sample. In this way, the hard cutting blade of the outer cutting cylinder 306 is used for rotary cutting of hard plates, and the annular cutting edge 3041 of the inner cutting cylinder 304 is used for downward cutting of soft plates, thereby improving the sampling quality.

[0044] like Figure 16 As shown, the outer peripheral surface of the annular cutting blade 3041 is provided with a first bevel, and the side of the movable cutting knife 3062 facing the inner cutting cylinder 304 is provided with a second bevel. The first bevel and the second bevel are arranged in parallel and are both inclined in the up and down directions. The sliding cooperation between the first bevel and the second bevel can enable the movable cutting knife 3062 to slide in the direction away from the inner cutting cylinder 304.

[0045] A compression spring (not shown) is connected between the movable cutting blades 3062 and the fixed cutting blade 3061. This spring tends to urge the movable cutting blades 3062 toward the inner cutting cylinder 304. In the initial state, the minimum diameter of the circle encompassing the multiple movable cutting blades 3062 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 blades 3062 and the annular cutting edge 3041 are consistent, maintaining a smooth outer surface.

[0046] like Figure 12 As shown, the middle cutting cylinder 305 comprises an upper rotating cylinder 3051 and a lower rotating cylinder 3052. The lower rotating cylinder 3052 is coaxially mounted on the lower end of the upper rotating cylinder 3051. The soft shredder blades 30522 are located at the lower end of the lower rotating cylinder 3052. Each soft shredder blade 30522 is composed of multiple blades arranged in an overlapping manner along the radial direction of the middle cutting cylinder 305. This arrangement of multiple overlapping blades provides a better shredding effect on soft sheet materials.

[0047] The lower end of the upper rotating cylinder 3051 is provided with a plurality of protrusions 30512 around its circumference, and the upper end of the lower rotating cylinder 3052 is provided with a plurality of inclined grooves 30523 around its circumference. The inclined grooves 30523 are inclined in the vertical direction. The protrusions 30512 correspond to the inclined grooves 30523 in a one-to-one manner and slide together, thereby enabling the lower rotating cylinder 3052 to move up and down and rotate relative to the upper rotating cylinder 3051. The rotational connection between the upper rotating cylinder 3051 and the lower rotating cylinder 3052 is achieved through the protrusions 30512 and the inclined grooves 30523, resulting in a simple structure and easy processing.

[0048] The lower end of the upper rotating cylinder 3051 is circumferentially provided with a plurality of first cutting blades 30511. These first cutting blades 30511 are used to cut hard sheet materials. The blades of the first cutting blades 30511 and the soft shredder blades 30522 have the same shape, with their lower ends being pointed. Since only one layer of first cutting blades 30511 is provided, their thickness is thin. This reduces stress when used to cut the last layer of hard sheet material, preventing cracking or burrs from the hard cutting blades during rotation and slicing, further improving sampling quality.

[0049] like Figure 12 and Figure 13 As shown, the outer circumference of the lower rotating cylinder 3052 is provided with a plurality of sliders 30521, and the inner circumference of the outer cutting cylinder 306 is provided with a plurality of sliding grooves 3064 extending in the vertical direction. The sliders 30521 correspond to and slide with the sliding grooves 3064 one by one. This allows the inner cutting cylinder 304 and the outer cutting cylinder 306 to move up and down relative to each other, facilitating the independent upward and downward movement of the inner cutting cylinder 304 and the outer cutting cylinder 306.

[0050] The lower end of the outer cutting cylinder 306 is provided with a plurality of open slots, into which the fixed cutting blades 3061 are fixedly mounted. The outer circumference of the outer cutting cylinder 306 is provided with a plurality of chip removal grooves 3063. These spiral-shaped chip removal grooves 3063 correspond to and communicate with the open slots. As the outer cutting cylinder 306 rotates, debris enters the open slots and then flows from the open slots into the chip removal grooves 3063, allowing the debris to be discharged outward, ensuring a smooth cutting process.

[0051] like Figure 3As shown, the outer coaxial sleeve of the outer cutting cylinder 306 is provided with a dust cover 400, which is provided with a suction port 401. The control arm 101 is provided with a suction fan (not shown), which is connected to the suction port 401. The upper rotating cylinder 3051 is provided with an air inlet 30514, which is connected to the outside air. During the sampling process, the suction fan is activated to suck the interior of the dust cover 400, thereby drawing the chips within the chip removal groove 3063 on the outer cutting cylinder 306 to the outside of the dust cover 400. Since the chips can also be used for plate testing, this method allows for timely removal and collection of the chips, preventing them from deteriorating due to frequent friction in the cutting gap, and facilitating subsequent chip analysis and testing.

[0052] like Figures 1 to 4 As shown, the control arm 101 is provided with a main shaft 102, and the lower end of the main shaft 102 is provided with a mounting shell for rotation. The main shaft 102 can move up and down relative to the control arm 101, thereby driving the mounting shell to move up and down. The lower end of the main shaft 102 is provided with a first gear 1021, and the upper part of the upper rotating cylinder 3051 is provided with a second gear 30513. The first gear 1021 and the second gear 30513 are both rotatably arranged in the mounting 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; the mounting shell is provided with a first telescopic cylinder 303 and a second telescopic cylinder 302, the first telescopic cylinder 303 is used to control the inner cutting cylinder 304 to move up and down relative to the mounting shell, and the second telescopic cylinder 302 is used to drive the outer cutting cylinder 306 to move up and down relative to the mounting shell.

[0053] 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 inner cutting cylinder 304 to move up and down, and the second telescopic cylinder 302 drives the outer cutting cylinder 306 to move up and down, so that the three cutting cylinders can move up and down respectively; at the same time, the main shaft 102 drives the middle cutting cylinder 305 and the outer cutting cylinder 306 to rotate synchronously.

[0054] like Figure 1 and Figure 2 As shown, a drive motor is installed above the control arm 101 to control the rotation of the main shaft 102. The control arm 101 is also equipped with a drive handwheel, which cooperates with the gear of the main shaft 102 to control the up and down movement of the main shaft 102. A slide bar is fixed to the mounting housing and can slide up and down along the control arm 101. The slide bar is equipped with an identification block, and the control arm 101 is also equipped with scale lines. The sampling cutting depth can be determined by observing the position of the identification block on the scale lines.

[0055] In combination with the above embodiments, the use principle and working process of the embodiments of the present invention are as follows:

[0056] Assume that the composite sheet consists of five layers, namely hard sheet-soft sheet-hard sheet-soft sheet-hard sheet.

[0057] 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.

[0058] 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.

[0059] 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. The main shaft 102 is then controlled to rotate forward, causing the upper rotating cylinder 3051 and the lower rotating cylinder 3052 to rotate synchronously clockwise. The soft chopping blades 30522 on the lower rotating cylinder 3052 chop the soft material on the outer periphery of the inner cutting cylinder 304. This allows the movable cutting blades 3062 of the outer cutting cylinder 306 to re-approach the inner cutting cylinder 304, thereby facilitating continued cutting of the hard plate material and ensuring a smooth outer periphery of the sample.

[0060] Then, the second telescopic cylinder 302 is controlled to move the outer cutting cylinder 306 downward onto the hard plate. 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, thereby realizing the rotary cutting of the hard plate again.

[0061] Then repeat the above steps to achieve alternating cutting and sampling of hard and soft panels.

[0062] When cutting the last layer of hard plate, the hard cutting blade of the outer cutting cylinder 306 rotates and cuts the hard plate until it is about to be cut. If only one tenth of the thickness remains, the main shaft 102 stops rotating and the outer cutting cylinder 306 no longer cuts the hard plate with the remaining thickness. Then the main shaft 102 is driven to rotate in the opposite direction, causing the upper rotating cylinder 3051 and the lower rotating cylinder 3052 to rotate counterclockwise synchronously, and then the protrusion 30512 on the upper rotating cylinder 3051 will enter under 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 blade 30511 can extend from the bottom of the lower rotating cylinder 3052, as shown in FIG. Figure 11 As shown, sampling assembly 300 is in the fourth state, where rotating first cutting blade 30511 is capable of rotary cutting the remaining thickness of the hard plate. Since first cutting blade 30511 is provided in only one layer and thus thin, using it to cut the last layer of hard plate reduces stress, thereby preventing cracking or burring of the hard cutting blade when cutting the hard plate, further improving sampling quality.

[0063] Since the diameter of the circle where the first cutting blade 30511 is located is larger than the minimum diameter of the annular cutting edge 3041, the sample will have an annular step. Finally, the first telescopic cylinder 303 is controlled again to press the annular cutting edge 3041 of the inner cutting cylinder 304 downward to cut off the annular step, and a flat sample can be obtained.

[0064] In addition, the suction fan can be turned on during the cutting process, and the debris generated by the cutting will enter the chip groove 3063 on the outer cutting cylinder 306, and be discharged from the outside of the dust cover 400 under the suction of the suction fan and collected. Finally, the sample and debris can be tested and analyzed.

[0065] The technical features of the above embodiments can be combined arbitrarily. To make the description concise, 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, they should be considered to be within the scope of this specification.

[0066] The above-described embodiments merely illustrate several embodiments of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A furniture material detection and sampling device, characterized in that: The utility model comprises a column, a control arm and a tray are provided on the column, and the tray is used to place the composite plate; the control arm is provided with a sampling assembly, and the sampling assembly includes an inner cutting cylinder, a middle cutting cylinder and an outer cutting cylinder which are coaxially 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 vertical direction and can each move up and 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 for cutting soft plates; The lower end of the middle cutting cylinder is provided with a plurality of soft chopping knives in a circumferential direction, and the soft chopping knives are used to chop soft plates; The lower end of the outer cutting cylinder is provided with a plurality of hard cutting blades around the circumferential direction, and the hard cutting blades are used to cut hard plates, and the hard cutting blades and the soft cutting blades are staggered in the circumferential direction of the outer cutting cylinder; the hard cutting blades include a fixed cutting blade and a movable cutting blade, and the fixed cutting blade is fixedly provided on the outer cutting cylinder, and the movable cutting blade can slide radially along the outer cutting cylinder relative to the fixed cutting blade; the annular cutting blade and the movable cutting blade slide in cooperation, so that the movable cutting blade can slide in the direction close to the inner circumferential surface of the outer cutting cylinder, the outer circumferential surface of the annular cutting blade is provided with a first inclined surface, and the side of the movable cutting blade facing the inner cutting cylinder is provided with a second inclined surface, the first inclined surface and the second inclined surface are arranged in parallel and are both inclined in the up and down directions, and during the downward movement of the inner cutting cylinder, the sliding cooperation of the first inclined surface and the second inclined surface can make the movable cutting blade slide in the direction away from the inner cutting cylinder.

2. The furniture material detection and sampling device according to claim 1, characterized in that: A compression spring is connected between the movable cutter and the fixed cutter, and the compression spring has a tendency to make the movable cutter close to the inner cutting cylinder; in the initial state, the minimum diameter of the circle where the multiple movable cutters are located is the same as the minimum diameter of the annular cutting edge.

3. The furniture material detection and sampling device according to claim 1, characterized in that: The middle cutting cylinder includes an upper rotating cylinder and a lower rotating cylinder, and the lower rotating cylinder is coaxially rotatably sleeved on the lower end of the upper rotating cylinder; the soft chopping knife is located at the lower end of the lower rotating cylinder, and each soft chopping knife is composed of multiple blades overlapped along the radial direction of the middle cutting cylinder.

4. The furniture material detection and sampling device according to claim 3, characterized in that: The lower end of the upper rotating cylinder is provided with a plurality of protrusions around its circumferential direction, and the upper end of the lower rotating cylinder is provided with a plurality of inclined grooves around its circumferential direction. The inclined grooves are inclined in the up and down directions. The protrusions correspond to the inclined grooves one by one and slide together, so that the lower rotating cylinder can move up and down and rotate relative to the upper rotating cylinder.

5. The furniture material detection and sampling device according to claim 4, characterized in that: 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.

6. The furniture material detection and sampling device according to claim 5, characterized in that: The outer circumference of the lower rotating cylinder is provided with a plurality of sliding blocks, and the inner circumference of the outer cutting cylinder is provided with a plurality of sliding grooves extending in the up-down direction. The sliding blocks correspond to the sliding grooves one by one and slide in conjunction with each other.

7. The furniture material detection and sampling device according to claim 1, characterized in that: The lower end of the outer cutting cylinder is provided with a plurality of open grooves, the fixed cutting blade is fixed in the open grooves, and the outer peripheral surface of the outer cutting cylinder is provided with a plurality of chip removal grooves, which are spiral and correspond to and communicate with the open grooves one by one.

8. The furniture material detection and sampling device according to claim 3, characterized in that: The outer coaxial sleeve of the outer cutting cylinder is provided with a dust cover, the dust cover is provided with a suction port, the control arm is provided with a suction fan, the suction fan is connected to the suction port; the upper rotating cylinder is provided with an air inlet, and the air inlet is connected to the outside air.

9. The furniture material detection and sampling device according to claim 8, characterized in that: The control arm is provided with a main shaft, and the lower end of the main shaft is provided with a mounting shell. The main shaft can move up and down relative to the control arm, thereby driving the mounting shell to move up and down. The lower end of the main shaft is provided with a first gear, and the upper part of the upper rotating cylinder is provided with a second gear. The first gear and the second gear are both rotatably arranged in the mounting shell, and the rotation of the main shaft drives the upper rotating cylinder to rotate synchronously through the first gear and the second gear; the mounting shell is provided with a first telescopic cylinder and a second telescopic cylinder, the first telescopic cylinder is used to control the inner cutting cylinder to move up and down relative to the mounting shell, and the second telescopic cylinder is used to drive the outer cutting cylinder to move up and down relative to the mounting shell.

Images