A special size detection device and detection method for perfume bottle cap

Abstract

The present invention relates to the technical field of size detection, specifically to a special size detection device and detection method for perfume bottle caps, comprising a detection component, wherein the detection component comprises a detection box. The light emitted by an LED light source is refracted by a convex lens and then parallelly passes through a light tube and a plurality of light shielding plates and is projected onto a projection screen, wherein a portion of the light is blocked by the bottle cap, thus forming a shadow in the middle of the projection screen. The camera measures the width and height of the shadow part on the projection screen by shooting the front and rear widths and heights, and compares the scale lines on the projection screen, thereby measuring the width and height of the bottle cap without multiple measurements, thereby improving the detection efficiency, and driving the servo clamp to rotate by the output shaft of the angle adjustment motor, further driving the bottle cap to rotate together, and during the rotation of the bottle cap, two cameras continuously shoot, and measure the multi-dimensional angles of the bottle cap, thereby improving the flexibility of the bottle cap size detection.

Description

Technical Field

[0001] The invention relates to the technical field of size detection, and in particular to a special size detection device and detection method for perfume bottle caps. Background Art

[0002] Perfume is a product made by dissolving spices in ethanol. Sometimes, trace pigments, antioxidants, fungicides, glycerin, surfactants and other additives are added as needed. It has a fragrant and rich aroma. Its main function is to spray on lapels, handkerchiefs, hairlines and other parts to emit a pleasant aroma. It is one of the important cosmetics and needs to be stored in perfume bottles. In addition, in order to prevent the fragrance of the perfume from volatilizing, it is also necessary to use a bottle cap to seal the mouth of the perfume bottle. The shapes of perfume bottles and the diameters of the bottle mouths on the market are different. Therefore, it is necessary to process bottle caps of different sizes to seal the mouths of perfume bottles of different specifications. In order to ensure that the bottle cap and the bottle mouth can perfectly match, the size of the bottle cap needs to be measured during processing to prevent unqualified bottle caps from circulating in the market;

[0003] According to a Chinese patent application with the publication number CN112325746A, a special size detection device for bottle caps is disclosed, which uses a cylinder, an air chamber, an air hole, etc. to form an adsorption mechanism to adsorb and fix the bottle cap on a rotary measuring table, avoiding the damage to the thin wall of the bottle cap caused by the traditional clamping structure when fixing the bottle cap. However, during a single detection process, the above device cannot detect multiple sets of data on the material, especially multi-dimensional detection. Therefore, we propose a special size detection device and detection method for perfume bottle caps to solve the above technical problems. Summary of the invention

[0004] The present invention provides the following technical solution: a special size detection device for perfume bottle caps, comprising a detection component;

[0005] The detection component comprises a detection box, a light tube is fixedly installed on the left end of the detection box, an LED light source is fixedly installed on the left end of the light tube, a convex lens is fixedly installed on the inner wall of the light tube, a light baffle is provided on the right end of the light tube, an adjusting sleeve is rotatably installed on the outer wall of the light tube, a resistance wire is fixedly installed on the upper part of the left wall of the detection box, a guide rod is rotatably installed on the left wall of the detection box, a movable block is slidably installed on the outer wall of the guide rod, an elastic copper sheet is fixedly installed on the top of the movable block, a conductive touch ball is movably provided on the top of the elastic copper sheet, a variable resistance horizontal shaft is rotatably provided on the left wall of the detection box, a path cam is fixedly installed on the outer wall of the variable resistance horizontal shaft, a path pin is fixedly installed on the bottom of the movable block, a driven gear is fixedly installed on the right end of the variable resistance horizontal shaft, an arc-shaped rack is fixedly installed on the top of the adjusting sleeve, a fixed frame is fixedly installed on the right part of the inner wall of the detection box, a projection screen is fixedly installed on the left part of the fixed frame, and two cameras distributed front and back are fixedly installed on the right end of the detection box.

[0006] As a preferred solution of the present invention, the convex lens is located between the LED light source and the plurality of light blocking plates, and the LED light source is located at the focus of the convex lens.

[0007] As a preferred solution of the present invention, a plurality of hinge holes distributed at equal angles are provided at the right end of the light tube, the positions of the light blocking plates correspond one to one with the positions of the hinge holes, and the light blocking plates are rotatably installed with the hinge holes at corresponding positions through axle pins, and the plurality of light blocking plates are sequentially fitted, and the outer walls of the plurality of light blocking plates are fixedly installed with gradual shifting blocks, and a gradual shifting groove is provided through the right side surface of the gradual shifting block, and a plurality of shifting pins distributed at equal angles are fixedly installed on the right side surface of the adjustment sleeve, and the shifting pins are slidably installed in the corresponding gradual shifting grooves.

[0008] As a preferred solution of the present invention, two bearing seats distributed front and back are fixedly installed on the left end of the bottom wall of the detection box, and a driving shaft is rotatably installed between the two bearing seats, wherein a servo motor is fixedly installed on the front side of one of the bearing seats located at the front, and the output shaft of the servo motor is fixedly connected to the end of the driving shaft through a coupling, and a worm is fixedly installed on the outer wall of the driving shaft, and the worm is located at the bottom of the adjusting sleeve, and worm gear teeth are provided at the bottom of the adjusting sleeve, and the worm gear teeth are meshed with the worm.

[0009] As a preferred solution of the present invention, the driven gear is located at the top of the arc-shaped rack, and the bottom of the driven gear is meshed with the top of the arc-shaped rack, the outer wall of the path cam is provided with a spiral path groove, the path pin is slidably installed in the spiral path groove provided on the path cam, the top of the conductive touch ball is abutted against the bottom of the resistance wire, and the resistance wire is electrically connected to the LED light source.

[0010] As a preferred solution of the present invention, a clearance hole is provided at the top of the elastic copper sheet, the conductive touch ball is rotatably located inside the clearance hole, and there is a clearance fit between the inner wall of the clearance hole and the outer wall of the conductive touch ball. The top of the elastic copper sheet is arranged in a downward concave shape, and the front and rear parts of the outer wall of the conductive touch ball are fixedly installed with a clamping shaft, and the clamping shaft is rotatably located inside the downward groove at the top of the elastic copper sheet.

[0011] As a preferred solution of the present invention, a key slot is provided at the top of the outer wall of the guide rod, a key block is slidably mounted on the inner wall of the key slot, the key block is fixedly mounted on the top of the inner wall, and the movable block is made of insulating material.

[0012] As a preferred solution of the present invention, a partition is fixedly installed on the left part of the inner wall of the detection box, and a light-transmitting opening is penetrated through a side surface of the partition close to the light tube, and the light-transmitting opening is concentric with the light tube.

[0013] As a preferred solution of the present invention, a robot arm is provided on the back of the detection box, a dust cover is fixedly installed on the end of the robot arm, a servo cylinder is fixedly installed on the top of the dust cover, the output rod of the servo cylinder movably passes through the dust cover and extends to the periphery of its bottom, a fixing frame is fixedly installed on the bottom of the output rod of the servo cylinder, an angle adjustment motor is fixedly installed inside the fixing frame, a servo clamp is fixedly installed on the end of the output shaft of the angle adjustment motor, a pick-up and release port is opened on the top of the detection box, the dust cover is located on the periphery of the opening of the pick-up and release port, and the bottom of the dust cover abuts against the top of the detection box.

[0014] A detection method of a special size detection device for perfume bottle caps, comprising the following steps:

[0015] S1, clamp the bottle cap with the servo gripper, and extend the servo gripper and the clamped bottle cap from the top of the pick-and-place opening into the interior of the detection box through the robot arm until the dust cover is covered on the top of the detection box, and then adjust the height of the servo gripper by extending and retracting the output rod of the servo cylinder, and further adjust the height of the bottle cap to a suitable position;

[0016] S2. The output shaft of the servo motor drives the driving shaft to rotate between the front and rear bearing seats. The rotation of the driving shaft drives the worm to rotate together. The rotation of the worm drives the meshing worm gear and the adjusting sleeve to rotate along the outer wall of the light tube. The rotation of the adjusting sleeve drives the multiple pins connected to it to rotate together. Due to the sliding connection between the pin and the gradual shifting groove, the pin drives the gradual shifting block to flip, and further flips the light baffle toward the periphery along the transition with the hinge hole, opening an opening at the right end of the light tube. When the opening size formed by the flipping of the multiple light baffles is slightly larger than the size of the bottle cap, the light emitted by the LED light source is refracted by the convex lens and parallel to the light tube and the openings opened by the multiple light baffles to the projection screen. Part of the light is blocked by the bottle cap, so a shadow is formed in the middle part of the projection screen. The camera shoots the front and rear widths and heights of the shadow part on the projection screen, and compares them with the scale lines on the projection screen to measure the width and height of the bottle cap.

[0017] S3. The output shaft of the angle adjustment motor drives the servo gripper to rotate, which further drives the bottle cap to rotate. During the rotation of the bottle cap, two cameras continuously take pictures to measure the multi-dimensional angles of the bottle cap, thereby improving the flexibility of bottle cap size detection. The aperture size at the right end of the light tube is adaptively adjusted to the bottle cap by flipping multiple light baffles.

[0018] S4. During the rotation of the adjustment sleeve, the arc-shaped rack is also driven to rotate. The rotation of the arc-shaped rack drives the driven gear to rotate, and further drives the path cam to rotate through the variable resistance horizontal axis. The spiral groove on the path cam pushes the path pin to translate along the axial direction of the path cam. The movement of the path pin further drives the elastic copper sheet to move through the sliding connection between the movable block and the guide rod. The movement of the elastic copper sheet drives the conductive touch ball to move against the bottom wall of the resistor wire, thereby reducing the current of the LED light source. In other words, during the period when the aperture formed by the multiple light-blocking plates becomes larger, the current of the LED light source gradually becomes smaller. Therefore, the brightness of the LED light source gradually weakens, and the light and shadow projected onto the projection screen will not be too bright. On the contrary, when the aperture formed by the rotation of the multiple light-blocking plates is smaller, the current of the LED light source becomes larger. Therefore, the brightness of the LED light source is enhanced, so that when the multiple light-blocking plates are surrounded by a smaller opening, there is still enough light to be projected onto the projection screen, ensuring that when the aperture is small, the brightness projected onto the surface of the projection screen will not be too weak.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. In the present invention, the light emitted by the LED light source is refracted by the convex lens and then passes through the light tube and the openings of multiple light shielding plates in parallel to the projection screen. A part of the light is blocked by the bottle cap, so a shadow is formed in the middle part of the projection screen. The camera shoots the front and rear widths and heights of the shadow part on the projection screen and compares them with the scale lines on the projection screen to measure the width and height of the bottle cap. There is no need for multiple measurements, which improves the efficiency of detection. The output shaft of the angle adjustment motor drives the servo clamp to rotate, which further drives the bottle cap to rotate. During the rotation of the bottle cap, the two cameras continuously shoot and measure the multi-dimensional angles of the bottle cap, which improves the flexibility of bottle cap size detection.

[0021] 2. In the present invention, the aperture size of the right end of the light tube is adaptively adjusted to the bottle cap by flipping a plurality of light shielding plates, so that when the size of the bottle cap is detected, the range of light and shadow projected on the projection screen will not be too large, which makes it easier to distinguish the light and shadow projected on the projection screen and to observe the size of the bottle cap.

[0022] 3. In the present invention, during the period when the aperture formed by the light-blocking plates becomes larger, the current of the LED light source gradually becomes smaller, so the brightness of the LED light source gradually weakens, thereby ensuring that the light and shadow projected onto the projection screen will not be too bright under the premise that there is enough brightness to be refracted to the surface of the projection screen through the convex lens. On the contrary, when the aperture formed by the rotation of multiple light-blocking plates is smaller, the current of the LED light source becomes larger, so the brightness of the LED light source is enhanced, so that when multiple light-blocking plates surround a smaller opening, there is still enough light to be projected onto the projection screen, ensuring that when the aperture is small, the brightness projected onto the surface of the projection screen will not be too weak, thereby facilitating the camera to shoot the light and shadow on the projection screen, so that large and small bottle caps can be accurately detected. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of the present invention;

[0024] Figure 2 The half-section structure of the detection box in the present invention is shown in FIG. Figure 1 ;

[0025] Figure 3 The half-section structure of the detection box in the present invention is shown in FIG. Figure 2 ;

[0026] Figure 4 It is a schematic diagram of a partial cross-sectional structure of the detection box in the present invention;

[0027] Figure 5 It is a schematic diagram of a half-section structure of the light tube in the present invention;

[0028] Figure 6 For the present invention Figure 4 A schematic diagram of the enlarged structure of part A;

[0029] Figure 7 It is a schematic diagram of the structure of the adjusting sleeve and the worm in the present invention;

[0030] Figure 8 It is a schematic diagram of the structure of the elastic copper sheet and the keyway in the present invention;

[0031] Fig. 9 It is a schematic diagram of the structure of the servo cylinder and the servo clamp in the present invention.

[0032] In the figure: 100, detection component; 101, detection box; 1001, take-in and put-out port; 102, light tube; 103, LED light source; 104, convex lens; 105, hinge hole; 106, light shield; 107, fixed frame; 108, projection screen; 109, gradual shifting block; 1010, gradual shifting groove; 1011, adjustment sleeve; 1012, shifting pin; 1013, worm gear; 1014, bearing seat; 1015, servo motor; 1016, drive shaft; 1017, worm; 1018, arc rack; 1019, driven gear ; 1020, variable resistance horizontal axis; 1021, path cam; 1022, resistance wire; 1023, path pin; 1024, movable block; 1025, elastic copper sheet; 1026, give way hole; 1027, conductive touch ball; 1028, clamping shaft; 1029, guide rod; 1030, keyway; 1031, key block; 200, robot arm; 300, partition; 301, light-transmitting port; 400, dust cover; 401, servo cylinder; 402, fixing frame; 403, angle adjustment motor; 404, servo clamp; 500, camera. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] See also Figure 1-Figure 9 The technical solution provided by the present invention specifically includes the following embodiments:

[0035] Embodiment 1: A special size detection device for perfume bottle caps, comprising a detection component 100;

[0036] The detection component 100 includes a detection box 101, a light tube 102 is fixedly installed on the left end of the detection box 101, an LED light source 103 is fixedly installed on the left end of the light tube 102, a convex lens 104 is fixedly installed on the inner wall of the light tube 102, a light blocking plate 106 is provided on the right end of the light tube 102, the convex lens 104 is located between the LED light source 103 and the plurality of light blocking plates 106, and the LED light source 103 is located at the focus of the convex lens 104, an outer wall of the light tube 102 is rotatably provided with an adjustment sleeve 1011, and a plurality of hinge holes 105 distributed at equal angles are opened on the right end of the light tube 102, the position of the light blocking plate 106 corresponds to the position of the hinge hole 105, and the light blocking plate 106 is arranged at the right end of the light tube 102. The light plate 106 is rotatably installed with the hinge hole 105 at the corresponding position through the shaft pin, and the multiple light shielding plates 106 are sequentially fitted. The outer walls of the multiple light shielding plates 106 are fixedly installed with gradual shifting blocks 109, and the right side of the gradual shifting block 109 is penetrated with a gradual shifting groove 1010. The right side of the adjustment sleeve 1011 is fixedly installed with multiple shifting pins 1012 distributed at equal angles, and the shifting pins 1012 are slidably installed in the corresponding gradual shifting grooves 1010. A fixed frame 107 is fixedly installed on the right part of the inner wall of the detection box 101, and a projection screen 108 is fixedly installed on the left part of the fixed frame 107. Two cameras 500 distributed front and back are fixedly installed at the right end of the detection box 101;

[0037] Two bearing seats 1014 distributed front and back are fixedly installed on the left end of the bottom wall of the detection box 101, and a driving shaft 1016 is rotatably installed between the two bearing seats 1014. A servo motor 1015 is fixedly installed on the front of a bearing seat 1014 located at the front, and the output shaft of the servo motor 1015 is fixedly connected to the end of the driving shaft 1016 through a coupling. A worm 1017 is fixedly installed on the outer wall of the driving shaft 1016, and the worm 1017 is located at the bottom of the adjusting rotating sleeve 1011. The bottom of the adjusting rotating sleeve 1011 is provided with worm gear teeth 1013, and the worm gear teeth 1013 are meshed with the worm 1017;

[0038] A partition 300 is fixedly installed on the left part of the inner wall of the detection box 101, and a light-transmitting opening 301 is formed through a side of the partition 300 close to the light tube 102, and the light-transmitting opening 301 is concentric with the light tube 102;

[0039] Specifically, the output shaft of the servo motor 1015 drives the driving shaft 1016 to rotate between the front and rear bearing seats 1014. The driving shaft 1016 rotates to drive the worm 1017 to rotate together. The worm 1017 rotates to drive the worm gear 1013 meshing therewith and the adjusting sleeve 1011 to rotate along the outer wall of the light tube 102. The adjusting sleeve 1011 rotates to drive the multiple pins 1012 connected thereto to rotate together. Due to the sliding connection between the pins 1012 and the gradual shifting grooves 1010, the pins 1012 shift the gradual shifting blocks 109 to flip, and further flip the light blocking plate 106 toward the periphery along the transition with the hinge hole 105, so that the light tube An opening is opened at the right end of 102. When the multiple light shielding plates 106 are flipped, the size of the opening formed is slightly larger than the size of the bottle cap. The light emitted by the LED light source 103 is refracted by the convex lens 104 and then passes through the light tube 102 and the openings of the multiple light shielding plates 106 in parallel to the projection screen 108. A part of the light is blocked by the bottle cap, so a shadow is formed in the middle part of the projection screen 108. The camera 500 can measure the width and height of the bottle cap by shooting the front and back width and height of the shadow part on the projection screen 108 and comparing it with the scale lines on the projection screen 108. There is no need for multiple measurements, which improves the efficiency of detection.

[0040] Embodiment 2: A resistance wire 1022 is fixedly provided on the upper part of the left wall of the detection box 101, a guide rod 1029 is rotatably provided on the left wall of the detection box 101, a movable block 1024 is slidably installed on the outer wall of the guide rod 1029, an elastic copper sheet 1025 is fixedly provided on the top of the movable block 1024, a conductive touch ball 1027 is movably provided on the top of the elastic copper sheet 1025, a variable resistance horizontal axis 1020 is rotatably provided on the left wall of the detection box 101, a path cam 1021 is fixedly installed on the outer wall of the variable resistance horizontal axis 1020, a path pin 1023 is fixedly provided on the bottom of the movable block 1024, a driven gear 1019 is fixedly installed on the right end of the variable resistance horizontal axis 1020, and an arc-shaped rack 1018 is fixedly installed on the top of the adjusting rotating sleeve 1011;

[0041] The driven gear 1019 is located at the top of the arc-shaped rack 1018, and the bottom of the driven gear 1019 is meshed with the top of the arc-shaped rack 1018. The outer wall of the path cam 1021 is provided with a spiral path groove, and the path pin 1023 is slidably installed in the spiral path groove provided on the path cam 1021. The top of the conductive touch ball 1027 is in contact with the bottom of the resistance wire 1022, and the resistance wire 1022 is electrically connected to the LED light source 103.

[0042] A clearance hole 1026 is provided at the top of the elastic copper sheet 1025, and the conductive contact ball 1027 is rotatably located inside the clearance hole 1026, and there is a clearance fit between the inner wall of the clearance hole 1026 and the outer wall of the conductive contact ball 1027. The top of the elastic copper sheet 1025 is set in a downward concave shape, and the front and rear parts of the outer wall of the conductive contact ball 1027 are fixedly installed with a clamping shaft 1028, which is rotatably located inside the downward groove at the top of the elastic copper sheet 1025;

[0043] Specifically, the aperture size of the right end of the light tube 102 is adaptively adjusted to the bottle cap by flipping a plurality of light blocking plates 106, so that when the size of the bottle cap is detected, the light and shadow range projected on the projection screen 108 will not be too large, which makes it easier to distinguish the light and shadow projected on the projection screen 108 and the size of the bottle cap. During the rotation of the adjusting sleeve 1011, the arc rack 1018 is also driven to rotate together, and the rotation of the arc rack 1018 drives the driven gear 1019 to rotate, and further drives the path cam 1021 to rotate through the variable resistance horizontal shaft 1020, and the path pin 1023 is pushed to translate along the axial direction of the path cam 1021 through the spiral groove provided on the path cam 1021, and the path pin 1023 moves through the sliding connection between the movable block 1024 and the guide rod 1029 to further drive the elastic copper sheet 1025 to move, and the movement of the elastic copper sheet 1025 drives the conductive touch ball 1027 to press against the resistance wire 10 The bottom wall of the projection screen 108 moves when the plurality of light shielding plates 106 rotate, thereby reducing the current of the LED light source 103. That is to say, during the period when the aperture formed by the plurality of light shielding plates 106 becomes larger, the current of the LED light source 103 gradually becomes smaller. Therefore, the brightness of the LED light source 103 gradually weakens, thereby ensuring that there is sufficient brightness to be refracted to the surface of the projection screen 108 through the convex lens 104, and the light and shadow projected onto the projection screen 108 will not be too bright. On the contrary, when the aperture formed by the rotation of the plurality of light shielding plates 106 is smaller, the current of the LED light source 103 becomes larger. Therefore, the brightness of the LED light source 103 is enhanced, so that when the plurality of light shielding plates 106 surround a smaller opening, there is still enough light to be projected onto the projection screen 108, ensuring that when the aperture is small, the brightness projected onto the surface of the projection screen 108 will not be too weak, thereby facilitating the camera 500 to shoot the light and shadow on the projection screen 108, so that large and small bottle caps can be accurately detected.

[0044] Furthermore, a key slot 1030 is provided at the top of the outer wall of the guide rod 1029, and a key block 1031 is slidably installed on the inner wall of the key slot 1030, and the key block 1031 is fixedly installed on the top of the inner wall. The movable block 1024 is made of insulating material. By setting the sliding connection between the key slot 1030 and the key block 1031, the movable block 1024 and the guide rod 1029 are further torque-limited while ensuring the sliding effect of the movable block 1024 and the guide rod 1029 to avoid twisting of the movable block 1024, thereby ensuring the stability of the elastic copper sheet 1025 and the conductive touch ball 1027, so that the top of the conductive touch ball 1027 is always in contact with the bottom of the resistance wire 1022 to ensure conductivity.

[0045] Embodiment 3: A robot arm 200 is provided on the back of the detection box 101, a dust cover 400 is fixedly installed on the end of the robot arm 200, a servo cylinder 401 is fixedly installed on the top of the dust cover 400, an output rod of the servo cylinder 401 movably penetrates the dust cover 400 and extends to the periphery of its bottom, a fixing frame 402 is fixedly installed on the bottom of the output rod of the servo cylinder 401, an angle adjustment motor 403 is fixedly installed inside the fixing frame 402, a servo clamp 404 is fixedly installed on the end of the output shaft of the angle adjustment motor 403, a pick-up and release port 1001 is opened on the top of the detection box 101, the dust cover 400 is located on the periphery of the opening of the pick-up and release port 1001, and the bottom of the dust cover 400 abuts against the top of the detection box 101;

[0046] Specifically, the bottle cap is clamped by the servo clamp 404, and the servo clamp 404 and the clamped bottle cap are extended from the top of the pick-up and release port 1001 into the interior of the detection box 101 by the robot arm 200 until the dust cover 400 is covered on the top of the detection box 101, and then the height of the servo clamp 404 is adjusted by the extension and retraction of the output rod of the servo cylinder 401, and the height of the bottle cap is further adjusted to a suitable position, and the servo clamp 404 is driven to rotate by the output shaft of the angle adjustment motor 403, which further drives the bottle cap to rotate together. During the rotation of the bottle cap, the two cameras 500 continuously take pictures to measure the multi-dimensional angles of the bottle cap, thereby improving the flexibility of the bottle cap size detection.

[0047] A detection method of a special size detection device for perfume bottle caps, comprising the following steps:

[0048] S1, clamping the bottle cap by the servo clamp 404, and extending the servo clamp 404 and the clamped bottle cap from the top of the access port 1001 into the interior of the detection box 101 by the robot arm 200, until the dust cover 400 covers the top of the detection box 101, and then adjusting the height of the servo clamp 404 by extending and retracting the output rod of the servo cylinder 401, and further adjusting the height of the bottle cap to a suitable position;

[0049] S2. The output shaft of the servo motor 1015 drives the drive shaft 1016 to rotate between the front and rear bearing seats 1014. The rotation of the drive shaft 1016 drives the worm 1017 to rotate together. The rotation of the worm 1017 drives the meshing worm gear 1013 and the adjusting sleeve 1011 to rotate along the outer wall of the light tube 102. The rotation of the adjusting sleeve 1011 drives the multiple pins 1012 connected thereto to rotate together. Due to the sliding connection between the pins 1012 and the gradual shifting grooves 1010, the pins 1012 shift the gradual shifting block 109 to flip, further causing the light blocking plate 106 to move outward along the transition with the hinge hole 105. Flip the light tube 102 to open an opening at the right end. When the opening formed by flipping the light shielding plates 106 is slightly larger than the size of the bottle cap, the light emitted by the LED light source 103 is refracted by the convex lens 104 and then passes through the light tube 102 and the openings of the light shielding plates 106 to project onto the projection screen 108. A portion of the light is blocked by the bottle cap, thus forming a shadow in the middle of the projection screen 108. The camera 500 can measure the width and height of the bottle cap by photographing the front and rear width and height of the shadow on the projection screen 108 and comparing it with the scale lines on the projection screen 108.

[0050] S3, the output shaft of the angle adjustment motor 403 drives the servo gripper 404 to rotate, further driving the bottle cap to rotate together. During the rotation of the bottle cap, the two cameras 500 continuously take pictures to measure the multi-dimensional angles of the bottle cap, thereby improving the flexibility of the bottle cap size detection. The aperture size of the right end of the light cylinder 102 is adjusted to be adaptive to the bottle cap by flipping the multiple light shielding plates 106;

[0051] S4. During the rotation of the adjusting sleeve 1011, the arc-shaped rack 1018 is also driven to rotate together. The rotation of the arc-shaped rack 1018 drives the driven gear 1019 to rotate, and further drives the path cam 1021 to rotate through the variable resistance horizontal shaft 1020. The spiral groove on the path cam 1021 pushes the path pin 1023 to translate along the axial direction of the path cam 1021. The movement of the path pin 1023 further drives the elastic copper sheet 1025 to move through the sliding connection between the movable block 1024 and the guide rod 1029. The movement of the elastic copper sheet 1025 drives the conductive touch ball 1027 to move against the bottom wall of the resistance wire 1022, so that the LED The current of the light source 103 becomes smaller, that is to say, while the aperture formed by the multiple light shielding plates 106 becomes larger, the current of the LED light source 103 gradually becomes smaller. Therefore, the brightness of the LED light source 103 gradually weakens, and the light and shadow projected onto the projection screen 108 will not be too bright. On the contrary, when the aperture formed by the rotation of the multiple light shielding plates 106 is smaller, the current of the LED light source 103 becomes larger. Therefore, the brightness of the LED light source 103 is enhanced, so that when the multiple light shielding plates 106 surround a smaller opening, there is still enough light to be projected onto the projection screen 108, ensuring that when the aperture is small, the brightness projected onto the surface of the projection screen 108 will not be too weak.

[0052] In the present scheme, a special size detection device for perfume bottle caps is used to clamp the bottle caps through the servo clamping claws 404 during operation, and the servo clamping claws 404 and the clamped bottle caps are extended from the top of the access opening 1001 into the interior of the detection box 101 through the robot arm 200 until the dust cover 400 is covered on the top of the detection box 101, and then the height of the servo clamping claws 404 is adjusted by the extension and retraction of the output rod of the servo cylinder 401, and the height of the bottle cap is further adjusted to a suitable position;

[0053] Subsequently, the output shaft of the servo motor 1015 drives the driving shaft 1016 to rotate between the front and rear bearing seats 1014, and the driving shaft 1016 rotates to drive the worm 1017 to rotate together. The rotation of the worm 1017 drives the worm gear 1013 meshing therewith and the adjusting sleeve 1011 to rotate along the outer wall of the light tube 102. The rotation of the adjusting sleeve 1011 drives the multiple pins 1012 connected thereto to rotate together. Due to the sliding connection between the pins 1012 and the gradual shifting grooves 1010, the pins 1012 drive the gradual shifting blocks 109 to flip, and further flip the light blocking plates 106 toward the periphery along the transition with the hinge holes 105, opening an opening at the right end of the light tube 102. When the opening size formed by the flipping of the multiple light blocking plates 106 is slightly larger than the size of the bottle cap, the light emitted by the LED light source 103 is refracted through the convex lens 104 and then passes through the light tube 102 and the openings opened by the multiple light blocking plates 106 in parallel and is projected onto the projection screen. On the projection screen 108, part of the light is blocked by the bottle cap, so a shadow is formed in the middle of the projection screen 108. The camera 500 can measure the width and height of the bottle cap by shooting the front and rear widths and heights of the shadow part on the projection screen 108 and comparing them with the scale lines on the projection screen 108. Then, the output shaft of the angle adjustment motor 403 drives the servo clamp 404 to rotate, further driving the bottle cap to rotate together. During the rotation of the bottle cap, the two cameras 500 continuously shoot and measure the multi-dimensional angles of the bottle cap to improve the flexibility of bottle cap size detection. By flipping multiple light shielding plates 106, the aperture size of the right end of the light tube 102 is adaptively adjusted to the bottle cap, so that when the bottle cap is detected in size, the light and shadow range projected on the projection screen 108 will not be too large, which is more convenient to distinguish the light and shadow projected on the projection screen 108, and to observe the size of the bottle cap.

[0054] During the rotation of the adjusting sleeve 1011, the arc-shaped rack 1018 is also driven to rotate together. The rotation of the arc-shaped rack 1018 drives the driven gear 1019 to rotate, and further drives the path cam 1021 to rotate through the variable resistance horizontal shaft 1020. The spiral groove on the path cam 1021 pushes the path pin 1023 to translate along the axial direction of the path cam 1021. The movement of the path pin 1023 further drives the elastic copper sheet 1025 to move through the sliding connection between the movable block 1024 and the guide rod 1029. The movement of the elastic copper sheet 1025 drives the conductive touch ball 1027 to move against the bottom wall of the resistor wire 1022, thereby reducing the current of the LED light source 103. That is to say, during the period when the aperture formed by the multiple light-blocking plates 106 becomes larger, the current of the LED light source 103 gradually increases. becomes smaller, therefore, the brightness of the LED light source 103 gradually weakens, thereby ensuring that there is enough brightness to be refracted to the surface of the projection screen 108 through the convex lens 104, and the light and shadow projected onto the projection screen 108 will not be too bright. On the contrary, when the aperture formed by the rotation of the multiple light-blocking plates 106 is smaller, the current of the LED light source 103 becomes larger, and therefore, the brightness of the LED light source 103 is enhanced, so that when the multiple light-blocking plates 106 surround a smaller opening, there is still enough light to be projected onto the projection screen 108, ensuring that when the aperture is small, the brightness projected onto the surface of the projection screen 108 will not be too weak, thereby facilitating the camera 500 to shoot the light and shadow on the projection screen 108, so that large-sized and small-sized bottle caps can be accurately detected.

[0055] While the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the invention.

Claims

1. A special size detection device for perfume bottle caps, characterized in that: comprising a detection component (100); The detection component (100) comprises a detection box (101), a light tube (102) is fixedly mounted on the left end of the detection box (101), an LED light source (103) is fixedly mounted on the left end of the light tube (102), a convex lens (104) is fixedly mounted on the inner wall of the light tube (102), a light blocking plate (106) is provided on the right end of the light tube (102), an adjustment sleeve (1011) is rotatably mounted on the outer wall of the light tube (102), a resistance wire (1022) is fixedly mounted on the upper part of the left wall of the detection box (101), a guide rod (1029) is rotatably mounted on the left wall of the detection box (101), a movable block (1024) is slidably mounted on the outer wall of the guide rod (1029), and the movable block (1024) is slidably mounted on the outer wall of the movable block (1024). An elastic copper sheet (1025) is fixedly provided on the top of the movable block (1024), a conductive touch ball (1027) is movably provided on the top of the elastic copper sheet (1025), a variable resistance horizontal shaft (1020) is rotatably provided on the left wall of the detection box (101), a path cam (1021) is fixedly installed on the outer wall of the variable resistance horizontal shaft (1020), a path pin (1023) is fixedly provided on the bottom of the movable block (1024), a driven gear (1019) is fixedly installed on the right end of the variable resistance horizontal shaft (1020), an arc-shaped rack (1018) is fixedly installed on the top of the adjusting rotating sleeve (1011), a fixed frame (107) is fixedly installed on the right part of the inner wall of the detection box (101), and the left part of the fixed frame (107) A projection screen (108) is fixedly installed, and the projection screen (108) is provided with scale lines. Two cameras (500) distributed front and back are fixedly installed at the right end of the detection box (101). The detection box (101) also includes a robot arm (200) which is arranged between the light shielding plate (106) and the projection screen (108). The robot arm (200) is connected to a servo clamp (404). The right end of the light cylinder (102) is provided with a plurality of hinge holes (105) distributed at equal angles. The positions of the light shielding plates (106) correspond to the positions of the hinge holes (105) one by one. The light shielding plates (106) are rotatably installed with the hinge holes (105) at corresponding positions through shaft pins. The plurality of light shielding plates (106) are sequentially fitted. The outer wall of the light baffle (106) is fixedly mounted with a gradual shifting block (109), the right side surface of the gradual shifting block (109) is penetrated by a gradual shifting groove (1010), the right side surface of the adjustment sleeve (1011) is fixedly mounted with a plurality of shifting pins (1012) distributed at equal angles, the shifting pins (1012) are slidably mounted inside the corresponding gradual shifting grooves (1010), the driven gear (1019) is located at the top of the arc-shaped rack (1018), and the bottom of the driven gear (1019) is meshed with the top of the arc-shaped rack (1018), the outer wall of the path cam (1021) is provided with a spiral path groove, and the path pin (1023) is slidably mounted in the spiral path groove provided on the path cam (1021),The top of the conductive touch ball (1027) abuts against the bottom of the resistance wire (1022), and the resistance wire (1022) is electrically connected to the LED light source (103).

2. A special size detection device for perfume bottle caps according to claim 1, characterized in that: The convex lens (104) is located between the LED light source (103) and a plurality of light blocking plates (106), and the LED light source (103) is located at the focus of the convex lens (104).

3. A special size detection device for perfume bottle caps according to claim 2, characterized in that: Two bearing seats (1014) distributed front and back are fixedly mounted on the left end of the bottom wall of the detection box (101), and a driving shaft (1016) is rotatably mounted between the two bearing seats (1014). A servo motor (1015) is fixedly mounted on the front of one of the bearing seats (1014) located at the front, and an output shaft of the servo motor (1015) is fixedly connected to an end of the driving shaft (1016) via a coupling. A worm (1017) is fixedly mounted on the outer wall of the driving shaft (1016), and the worm (1017) is located at the bottom of the adjusting rotating sleeve (1011). Worm gear teeth (1013) are provided at the bottom of the adjusting rotating sleeve (1011), and the worm gear teeth (1013) are meshed with the worm (1017).

4. A special size detection device for perfume bottle caps according to claim 3, characterized in that: A clearance hole (1026) is provided at the top of the elastic copper sheet (1025), the conductive contact ball (1027) is rotatably located inside the clearance hole (1026), and there is a clearance fit between the inner wall of the clearance hole (1026) and the outer wall of the conductive contact ball (1027), the top of the elastic copper sheet (1025) is arranged in a downward concave shape, and a clamping shaft (1028) is fixedly installed at the front and rear parts of the outer wall of the conductive contact ball (1027), and the clamping shaft (1028) is rotatably located inside the downward groove at the top of the elastic copper sheet (1025).

5. A special size detection device for perfume bottle caps according to claim 4, characterized in that: A key slot (1030) is provided at the top of the outer wall of the guide rod (1029); a key block (1031) is slidably mounted on the inner wall of the key slot (1030); the key block (1031) is fixedly mounted on the top of the inner wall; and the movable block (1024) is made of insulating material.

6. A special size detection device for perfume bottle caps according to claim 5, characterized in that: A partition (300) is fixedly mounted on the left portion of the inner wall of the detection box (101), and a light-transmitting opening (301) is formed through a side surface of the partition (300) close to the light cylinder (102), and the light-transmitting opening (301) is concentric with the light cylinder (102).

7. A special size detection device for perfume bottle caps according to claim 6, characterized in that: A robot arm (200) is provided on the back of the detection box (101); a dust cover (400) is fixedly installed at the end of the robot arm (200); a servo cylinder (401) is fixedly installed on the top of the dust cover (400); an output rod of the servo cylinder (401) movably penetrates the dust cover (400) and extends to the periphery of the bottom thereof; a fixing frame (402) is fixedly installed at the bottom of the output rod of the servo cylinder (401); an angle adjustment motor (403) is fixedly installed inside the fixing frame (402); a servo clamp (404) is fixedly installed at the end of the output shaft of the angle adjustment motor (403); a pick-up and release opening (1001) is provided on the top of the detection box (101); the dust cover (400) is located at the periphery of the opening of the pick-up and release opening (1001), and the bottom of the dust cover (400) abuts against the top of the detection box (101).

8. The detection method of the special size detection device for perfume bottle caps according to claim 7, characterized in that: The usage steps include the following: S1, clamping the bottle cap by the servo clamp (404), and extending the servo clamp (404) and the clamped bottle cap from the top of the access opening (1001) into the interior of the detection box (101) by the robot arm (200) until the dust cover (400) covers the top of the detection box (101), and then adjusting the height of the servo clamp (404) by extending and retracting the output rod of the servo cylinder (401), and further adjusting the height of the bottle cap to a suitable position; S2. The output shaft of the servo motor (1015) drives the drive shaft (1016) to rotate between the front and rear bearing seats (1014). The rotation of the drive shaft (1016) drives the worm (1017) to rotate together. The rotation of the worm (1017) drives the worm gear (1013) meshing therewith and the adjusting sleeve (1011) to rotate along the outer wall of the light cylinder (102). The rotation of the adjusting sleeve (1011) drives the plurality of push pins (1012) connected thereto to rotate together. Due to the sliding connection between the push pins (1012) and the gradual push grooves (1010), the push pins (1012) push the gradual push block (109) to flip, thereby further causing the light blocking plate (106) to rotate along the hinge hole (105). The adapter is flipped outward to open an opening at the right end of the light tube (102). When the opening formed by flipping the plurality of light shielding plates (106) is slightly larger than the size of the bottle cap, the light emitted by the LED light source (103) is refracted by the convex lens (104) and then passes through the light tube (102) and the openings opened by the plurality of light shielding plates (106) to be projected onto the projection screen (108). A portion of the light is blocked by the bottle cap, thereby forming a shadow in the middle of the projection screen (108). The camera (500) can measure the width and height of the bottle cap by photographing the front and rear widths and heights of the shadow portion on the projection screen (108) and comparing them with the scale lines on the projection screen (108); S3, the output shaft of the angle adjustment motor (403) is used to drive the servo gripper (404) to rotate, thereby further driving the bottle cap to rotate together. During the rotation of the bottle cap, the two cameras (500) continuously take pictures to measure the multi-dimensional angles of the bottle cap, thereby improving the flexibility of bottle cap size detection. The aperture size of the right end of the light cylinder (102) is adjusted to be adaptive to the bottle cap by flipping multiple light shielding plates (106); S4. During the rotation of the adjusting sleeve (1011), the arc-shaped rack (1018) is also driven to rotate together. The rotation of the arc-shaped rack (1018) drives the driven gear (1019) to rotate, and further drives the path cam (1021) to rotate through the variable resistance horizontal shaft (1020). The spiral groove provided on the path cam (1021) pushes the path pin (1023) to translate along the axial direction of the path cam (1021). The movement of the path pin (1023) further drives the elastic copper sheet (1025) to move through the sliding connection between the movable block (1024) and the guide rod (1029). The movement of the elastic copper sheet (1025) drives the conductive touch ball (1027) to move against the bottom wall of the resistance wire (1022), thereby This causes the current of the LED light source (103) to decrease. That is, while the aperture formed by the plurality of light shielding plates (106) is enlarged, the current of the LED light source (103) gradually decreases. Therefore, the brightness of the LED light source (103) gradually decreases, and the light and shadow projected onto the projection screen (108) will not be too bright. On the contrary, when the aperture formed by the rotation of the plurality of light shielding plates (106) is smaller, the current of the LED light source (103) increases. Therefore, the brightness of the LED light source (103) is enhanced. Therefore, when the plurality of light shielding plates (106) surround a smaller opening, there is still enough light to be projected onto the projection screen (108), ensuring that when the aperture is small, the brightness projected onto the surface of the projection screen (108) will not be too weak.

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