Compressive strength detection equipment for wooden furniture processing

Abstract

The invention discloses compressive strength detection equipment for wooden furniture processing, and relates to the technical field of wooden furniture compressive strength detection. The compressive strength detection equipment for wooden furniture processing comprises a frame, a control device is fixedly connected to the inner wall of the frame, a placement table is fixedly connected to the left side of the frame, an extruder is fixedly connected to the inner bottom of the frame, and an extrusion block is movably connected to the outer wall of the extruder. The left side of the frame is fixedly connected with a detection mechanism. According to the compressive strength detection equipment for wood furniture processing, the functions of intelligent acquisition, preprocessing, gap detection, marking, display and the like of images are achieved through a control program preset in the control device, and the compressive strength of the wood furniture is detected through the steps of converting color images into grey-scale images, reducing noise through Gaussian blur, processing binary images through threshold values and the like. According to the invention, the gap areas can be identified more accurately, and the gap areas are marked on the original color image by using the green rectangular frame for display.

Description

Technical Field

[0001] The invention relates to the technical field of compressive strength detection of wooden furniture, in particular to a compressive strength detection device for wooden furniture processing. Background Art

[0002] The compressive strength test of wooden furniture is a key link in evaluating the quality of furniture. During the test, professional pressure testing equipment will be used. The tester will place the furniture on a suitable test platform. According to the type of furniture and the usage scenario, the pressure value when the furniture begins to deform or damage will be recorded by gradually increasing the pressure. This value will be compared with the standard value to determine whether its compressive strength is qualified. This can ensure that wooden furniture can withstand the weight of the human body and possible additional loads in daily use, thereby ensuring its safety and durability. The patent application with publication number CN219532741U discloses a compression testing device for wooden furniture production, which relates to the field of furniture technology. The utility model includes a shell with a cover body, a testing mechanism is arranged in the inner cavity, a placing plate is arranged below the testing mechanism, the placing plate is rotatably connected to the shell wall, an adjusting mechanism is arranged in the shell, the adjusting mechanism is used to adjust the angle formed between the placing plate and the shell wall, a crushing zone is arranged below the placing plate, a crushing mechanism is arranged in the crushing zone, the testing mechanism includes a pressing plate, a first screw and a first rotating member, the first screw is screwed to the shell wall and one end is fixed to the first rotating member and the other end is fixed to the pressing plate, the crushing mechanism includes a motor, a first rotating rod, a second rotating rod and a knife body, the first rotating rod and the second rotating rod are arranged horizontally in the crushing zone and a plurality of knife bodies are arranged on the surface, the motor output shaft is fixed to the first rotating rod, and the first rotating rod and the second rotating rod are respectively provided with sprockets; The above patent can effectively test the strength of furniture. However, during the compression test of wooden furniture, cracks will appear in the wooden furniture due to wood breakage, and the existence of the cracks will affect the subsequent furniture quality. Summary of the invention

[0003] In view of the deficiencies in the prior art, the present invention provides a compressive strength testing device for wooden furniture processing to solve the problems raised in the above background technology.

[0004] To achieve the above objectives, the present invention is implemented through the following technical solutions: a compressive strength testing device for wooden furniture processing, comprising a frame, a control device is fixedly connected to the inner wall of the frame, a placing table is fixedly connected to the left side of the frame, an extruder is fixedly connected to the inner bottom of the frame, an extruder is movably connected to the outer wall of the extruder, and a testing mechanism is fixedly connected to the left side of the frame. A control program pre-set in the control device realizes the functions of intelligent acquisition, preprocessing, gap detection and marking, and display of images. By converting color images into grayscale images, reducing noise by Gaussian blurring, and binarizing images by threshold processing, gap areas can be identified more accurately, and these gap areas are marked with green rectangular frames on the original color images for display, thereby improving the accuracy of gap detection. The detection mechanism includes: Display screen, which is fixedly connected to the left side of the frame. Combining the various components and functions of the above-mentioned testing equipment, the compressive strength of wooden furniture is tested from multiple angles, and the impact of the key factor of gap on furniture quality is targeted. Through accurate gap detection and effective treatment measures, potential quality problems can be discovered in time during the furniture production and processing process, and furniture with quality defects can be prevented from entering the market, thereby comprehensively guaranteeing the quality of wooden furniture; A recording device, wherein the recording device is fixedly connected to the outer wall of the display screen; An irradiation lamp is fixedly connected to the left side of the frame.

[0005] Preferably, the display screen is located on one side of the placement table, and the irradiation lamp is located on the other side of the placement table. The detection mechanism arranged on the left side of the frame includes a display screen, a recording device and a irradiation lamp. When the wooden furniture is subjected to a compression test, the light emitted by the irradiation lamp is transmitted through the gaps in the wooden furniture and displayed on the display screen, which can intuitively present the situation of the furniture gaps, thereby helping the staff to accurately judge whether gaps are generated in the furniture during the compression process and the position and shape of the gaps. This effectively solves the problem that gaps caused by furniture breakage and the like during the compression test of wooden furniture are difficult to detect, greatly improves the accuracy and reliability of the test, and provides a key basis for the subsequent control of furniture quality.

[0006] Preferably, the recording device is fixedly connected to the outer wall of the display screen via a bracket.

[0007] Preferably, the irradiation lamp is fixedly connected to the left side of the frame via a fixing bracket.

[0008] Preferably, the outer wall of the placement table is fixedly connected with a bumping mechanism.

[0009] Preferably, the jolting mechanism includes a transmission plate, one end of the transmission plate is fixedly connected to the outer wall of the placement table, the other end of the transmission plate is provided with a limiting hole, the outer wall of the limiting hole is plugged with a limiting rod, the limiting rod is fixedly connected to the inner wall of the frame, the other end of the transmission plate is fixedly connected to one end of a connecting rod, the other end of the connecting rod is fixedly connected to a vibration block, the inner bottom of the frame is fixedly connected to a vibration machine, the outer wall of the vibration machine is movably connected to the vibration block, and the jolting mechanism further optimizes the detection effect. After the vibration machine is powered on and started, it drives the vibration block to vibrate, and transmits the vibration to the placement table through the connecting rod and the transmission plate, thereby causing the placement table to vibrate and act on the wooden furniture, thereby increasing the possibility of gaps on the wooden furniture, so that fine gaps that may be difficult to find can also be revealed during the detection process, avoiding potential impact on subsequent furniture quality due to undetected gaps.

[0010] Preferably, the light emitted by the illumination lamp propagates in a straight line. When the light passes through the gap of wooden furniture, a light shadow similar to the shape of the gap is formed on the display screen because the edge of the gap limits the propagation path of the light.

[0011] Preferably, the display screen uses black material to display the light and shadow of the gap.

[0012] Preferably, a control program is pre-set in the control device: The basic steps of the procedure are as follows: Image acquisition and initialization Open the recording device and set the width and height of the image; Enter a loop to continuously read the image frames acquired by the camera; Image preprocessing Convert color images into grayscale images for easy subsequent processing; Use Gaussian blur to reduce noise in the image, making the detection of gaps more accurate; The image is binarized by threshold processing, and the image becomes only black and white. The black part can be the area where the gap is located. Gap detection and marking Find contours in a binary image; For each contour, get the coordinates and dimensions (x, y, w, h) of its bounding rectangle; Preset the gap size range to filter out the gap area; On the original color image, these gap areas are marked with green rectangular boxes; Display and Exit Displays the image with the gap marks.

[0013] The present invention provides a compressive strength testing device for wooden furniture processing, which has the following beneficial effects: 1. The compressive strength testing equipment for wooden furniture processing has a testing mechanism arranged on the left side of the frame, including a display screen, a recording device and a lighting lamp. When the wooden furniture is subjected to a compressive test, the light emitted by the lighting lamp is transmitted through the gaps of the wooden furniture and displayed on the display screen, which can intuitively present the situation of the furniture gaps, thereby helping the staff to accurately judge whether the furniture has gaps during the compression process and the position and shape of the gaps. This effectively solves the problem that gaps caused by furniture breakage and other situations are difficult to detect during the compressive test of wooden furniture, greatly improves the accuracy and reliability of the test, and provides a key basis for the subsequent control of furniture quality.

[0014] 2. The compressive strength testing equipment used for wooden furniture processing further optimizes the testing effect through the bumping mechanism. After the vibrator is powered on, it drives the vibration block to vibrate, and transmits the vibration to the placement table through the connecting rod and the transmission plate, thereby causing the placement table to vibrate and act on the wooden furniture, increasing the possibility of gaps on the wooden furniture, so that tiny gaps that may have been difficult to find can also be revealed during the testing process, avoiding potential impact on subsequent furniture quality due to undetected gaps.

[0015] 3. The compressive strength testing equipment used for wooden furniture processing realizes the functions of intelligent acquisition, preprocessing, gap detection and marking, and display of images through the control program pre-set in the control device. By converting color images into grayscale images, reducing noise through Gaussian blurring, and binarizing images through threshold processing, the gap areas can be identified more accurately, and these gap areas are marked with green rectangular frames on the original color image for display, thereby improving the accuracy of gap detection.

[0016] 4. The compressive strength testing equipment used for wooden furniture processing tests the compressive strength of wooden furniture from multiple angles by integrating the various components and functions of the above-mentioned testing equipment. It targets the impact of the key factor of gap on furniture quality. Through precise gap detection and effective treatment measures, it can timely discover potential quality problems during the furniture production and processing process, and prevent furniture with quality defects from entering the market, thereby comprehensively ensuring the quality of wooden furniture. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the axial side stereoscopic structure of the present invention; Figure 2 It is a schematic diagram of the back three-dimensional structure of the present invention; Figure 3 It is a schematic diagram of the local structure of the extruder of the present invention; Figure 4 It is a schematic diagram of the structure of the display screen layout of the present invention; Figure 5It is a schematic diagram of the local structure of the irradiation lamp of the present invention; Figure 6 For the present invention Figure 1 A schematic diagram of the enlarged structure of the middle part A; Figure 7 It is a schematic diagram of the local structure of the vibration machine of the present invention; Figure 8 It is a schematic diagram of the local structure of the jolting mechanism of the present invention.

[0018] In the figure: 1. frame; 2. control device; 3. placement table; 4. extruder; 5. extrusion block; 6. detection mechanism; 61. display screen; 62. recording device; 63. bracket; 64. fixing frame; 65. irradiation lamp; 7. bumping mechanism; 71. vibrator; 72. vibrating block; 73. connecting rod; 74. limit rod; 75. limit hole; 76. transmission plate. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0020] Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0021] For example, see Figure 1-5 The present invention provides a technical solution: a compressive strength testing device for wooden furniture processing, comprising a frame 1, a control device 2 is fixedly connected to the inner wall of the frame 1, a placing table 3 is fixedly connected to the left side of the frame 1, an extruder 4 is fixedly connected to the inner bottom of the frame 1, an extrusion block 5 is movably connected to the outer wall of the extruder 4, and a testing mechanism 6 is fixedly connected to the left side of the frame 1; The control device 2 can control the start of each device, and the control device 2 is pre-set with a fixed program. The furniture to be tested is placed on the placement table 3, and then the extruder 4 is manually controlled to be powered on and started, so that the extrusion block 5 extends out to fit the wooden furniture, and then the two sides of the wooden furniture are respectively fitted on the placement table 3 and the outer wall of the extrusion block 5; The detection mechanism 6 includes: A display screen 61, which is fixedly connected to the left side of the frame 1; A recording device 62, the recording device 62 is fixedly connected to the outer wall of the display screen 61; The irradiation lamp 65 is fixedly connected to the left side of the frame 1 .

[0022] The display screen 61 is located on one side of the placement table 3 , and the irradiation lamp 65 is located on the other side of the placement table 3 .

[0023] The recording device 62 is fixedly connected to the outer wall of the display screen 61 via a bracket 63 .

[0024] The irradiation lamp 65 is fixedly connected to the left side of the frame 1 through a fixing frame 64; The control device 2 controls the squeezing block 5 to continue squeezing the wooden furniture, thereby detecting the degree of compression resistance. During the detection process, the recording device 62 continuously records, and the irradiation lamp 65 is powered on to emit light to irradiate the wooden furniture, and then the part of the light that passes through is displayed on the display screen 61; A pressure detection device is provided on the squeezing block 5 , and the squeezing force can be displayed on the control device 2 .

[0025] For example 2, please refer to Figure 1-8 Based on the first embodiment, the present invention provides a technical solution: The outer wall of the placement table 3 is fixedly connected with a shaking mechanism 7 .

[0026] The jolting mechanism 7 includes a transmission plate 76, one end of which is fixedly connected to the outer wall of the placement table 3, and the other end of the transmission plate 76 is provided with a limiting hole 75, and the outer wall of the limiting hole 75 is inserted with a limiting rod 74, and the limiting rod 74 is fixedly connected to the inner wall of the frame 1, and the other end of the transmission plate 76 is fixedly connected to one end of the connecting rod 73, and the other end of the connecting rod 73 is fixedly connected to the vibration block 72, and the inner bottom of the frame 1 is fixedly connected to the vibration machine 71, and the outer wall of the vibration machine 71 is movably connected to the vibration block 72.

[0027] The light emitted by the illumination lamp 65 propagates in a straight line. When the light passes through the gap of the wooden furniture, the edge of the gap limits the propagation path of the light, and a light shadow similar to the shape of the gap is formed on the display screen 61.

[0028] The display screen 61 is made of black material to display the light and shadow of the gap; The vibration machine 71 is powered on and started to drive the vibration block 72 to vibrate. The vibration of the vibration block 72 is transmitted to the transmission plate 76 through the connecting rod 73. The transmission plate 76 will drive the placement table 3 to vibrate. The vibration of the placement table 3 is transmitted to the wooden furniture, thereby increasing the possibility of gaps on the wooden furniture, and then detecting the pressure resistance of the wooden furniture. The limit rod 74 is inserted into the limit hole 75 of the transmission plate 76. The size of the limit hole 75 is larger than the limit rod 74, and intercepting protrusions are set at both ends of the limit rod 74 to prevent the limit rod 74 from falling off from the limit hole 75, thereby limiting the position and shaking amplitude of the transmission plate 76.

[0029] For example 3, please refer to Figure 1-8Based on the first and second embodiments, the present invention provides a technical solution: The control program is pre-set in the control device 2: The basic steps of the procedure are as follows: Image acquisition and initialization Open the recording device 62 and set the width and height of the image; Enter a loop to continuously read the image frames acquired by the camera; Image preprocessing Convert color images into grayscale images for easy subsequent processing; Use Gaussian blur to reduce noise in the image, making the detection of gaps more accurate; The image is binarized by threshold processing, and the image becomes only black and white. The black part can be the area where the gap is located. Gap detection and marking Find contours in a binary image; For each contour, get the coordinates and dimensions (x, y, w, h) of its bounding rectangle; Preset the gap size range to filter out the gap area; On the original color image, these gap areas are marked with green rectangular boxes; Display and Exit Display the image with the gap marks; The specific procedure can be import cv2; import numpy as np; # Open recording device 62; cap = cv2.VideoCapture(0); cap.set(cv2.CAP_PROP_FRAME_WIDTH, 640); cap.set(cv2.CAP_PROP_FRAME_HEIGHT, 480); while True: # Read a frame of image; ret, frame = cap.read(); if ret: # Convert the image to grayscale; gray_frame = cv2.cvtColor(frame, cv2.COLOR_BGR2GRAY); # Perform Gaussian blur to reduce noise; blurred_frame = cv2.GaussianBlur(gray_frame, (5, 5), 0); # Binarize the image through threshold processing to facilitate gap detection; _, binary_frame = cv2.threshold(blurred_frame, 127, 255,cv2.THRESH_BINARY_INV); # Find contours; contours, _ = cv2.findContours(binary_frame, cv2.RETR_EXTERNAL, cv2.CHAIN_APPROX_SIMPLE); for contour in contours: x, y, w, h = cv2.boundingRect(contour) # Filter the area with gaps (here we assume that the gap width and height are within a certain range); if 5 < w < 100 and 5 < h < 100: # Draw a rectangular box on the original image to mark the gap; cv2.rectangle(frame, (x, y), (x + w, y + h), (0, 255,0), 2); # Display the marked image.

[0030] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A compressive strength testing device for wooden furniture processing, comprising a frame (1), characterized in that: The inner wall of the frame (1) is fixedly connected to a control device (2), the left side of the frame (1) is fixedly connected to a placement table (3), the inner bottom of the frame (1) is fixedly connected to an extruder (4), the outer wall of the extruder (4) is movably connected to an extrusion block (5), and the left side of the frame (1) is fixedly connected to a detection mechanism (6); The detection mechanism (6) comprises: A display screen (61), wherein the display screen (61) is fixedly connected to the left side of the frame (1); A recording device (62), wherein the recording device (62) is fixedly connected to an outer wall of the display screen (61); An irradiation lamp (65), wherein the irradiation lamp (65) is fixedly connected to the left side of the frame (1).

2. The compressive strength testing device for wooden furniture processing according to claim 1, characterized in that: The display screen (61) is located on one side of the placement platform (3), and the illumination lamp (65) is located on the other side of the placement platform (3).

3. The compressive strength testing device for wooden furniture processing according to claim 2, characterized in that: The recording device (62) is fixedly connected to the outer wall of the display screen (61) via a bracket (63).

4. The compressive strength testing device for wooden furniture processing according to claim 3 is characterized in that: The irradiation lamp (65) is fixedly connected to the left side of the frame (1) via a fixing frame (64).

5. The compressive strength testing device for wooden furniture processing according to claim 4, characterized in that: The outer wall of the placement platform (3) is fixedly connected with a shaking mechanism (7).

6. The compressive strength testing device for wooden furniture processing according to claim 5, characterized in that: The jolting mechanism (7) comprises a transmission plate (76), one end of the transmission plate (76) is fixedly connected to the outer wall of the placement table (3), the other end of the transmission plate (76) is provided with a limit hole (75), the outer wall of the limit hole (75) is plugged with a limit rod (74), the limit rod (74) is fixedly connected to the inner wall of the frame (1), the other end of the transmission plate (76) is fixedly connected to one end of a connecting rod (73), the other end of the connecting rod (73) is fixedly connected to a vibration block (72), the inner bottom of the frame (1) is fixedly connected to a vibration machine (71), and the outer wall of the vibration machine (71) is movably connected to the vibration block (72).

7. The compressive strength testing device for wooden furniture processing according to claim 6, characterized in that: The light emitted by the illumination lamp (65) propagates in a straight line. When the light passes through the gaps in the wooden furniture, the edges of the gaps limit the propagation path of the light, and thus a light shadow similar to the shape of the gaps is formed on the display screen (61).

8. The compressive strength testing device for wooden furniture processing according to claim 7, characterized in that: The display screen (61) is made of black material to display the light and shadow of the gaps.

9. The compressive strength testing device for wooden furniture processing according to claim 8, characterized in that: The control program is pre-set in the control device (2): The basic steps of the procedure are as follows: Image acquisition and initialization Open the recording device (62) and set the width and height of the image; Enter a loop to continuously read the image frames acquired by the camera; Image preprocessing Convert color images into grayscale images for easy subsequent processing; Use Gaussian blur to reduce noise in the image, making the detection of gaps more accurate; The image is binarized by threshold processing, and the image becomes only black and white. The black part can be the area where the gap is located. Gap detection and marking Find contours in a binary image; For each contour, get the coordinates and dimensions (x, y, w, h) of its bounding rectangle; Preset the gap size range to filter out the gap area; On the original color image, these gap areas are marked with green rectangular boxes; Display and Exit Displays the image with the gap marks.

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