Device for detecting defects of whole toothbrush

Abstract

The utility model discloses an overall defect detection device for toothbrushes. The overall defect detection device comprises a conveying line, a control mechanism, a visual detection mechanism and a defective product removing mechanism, a plurality of toothbrush stations which are arranged at intervals are mounted on the conveying line; toothbrushes are placed on the toothbrush stations; the control mechanism comprises a lifting assembly, a driving assembly and a telescopic assembly; the lifting assembly is mounted on the conveying line, a second mounting plate is mounted at the lifting end of the lifting assembly, the driving assembly and the telescopic assembly are both mounted on the second mounting plate, a plurality of vacuum suction cups are mounted at the output end of the driving assembly, and a plurality of top cylinders are mounted at the telescopic end of the telescopic assembly; the visual detection mechanism comprises a plurality of side detection cameras and two end detection cameras; the two end detection cameras are installed on the two sides of the conveying line correspondingly, and the side face detection camera is installed on one side of each vacuum suction cup. According to the utility model, the overall all-around detection of the toothbrush can be realized, the false detection rate of manual detection is reduced, and the detection efficiency and the detection effect are improved.

Description

Technical Field

[0001] This utility model relates to the field of toothbrush testing technology, and in particular to a device for detecting defects in the entire toothbrush. Background Technology

[0002] The traditional toothbrush manufacturing process includes handle injection molding, bristle implantation, bristle polishing, manual inspection, and packaging. Defective products can occur at any of these stages. For example, defects such as poor sprue formation may occur during handle injection molding; bristle damage may occur during bristle implantation; single-hole bristle twisting may occur during bristle polishing; manual inspection is not only tedious but also prone to false positives; and dirt may be present during packaging and shipping. Furthermore, existing technologies only allow for the detection of defects in the toothbrush head, failing to provide comprehensive inspection of the entire toothbrush, resulting in low inspection efficiency.

[0003] Therefore, a defect detection device for the entire toothbrush is proposed. Utility Model Content

[0004] The purpose of this invention is to provide a defect detection device for the entire toothbrush, aiming to solve or improve at least one of the above-mentioned technical problems.

[0005] To achieve the above objectives, this utility model provides the following solution: This utility model provides a defect detection device for the entire toothbrush, comprising:

[0006] A transport line, wherein several toothbrush stations are installed at intervals on the transport line; toothbrushes are placed on the toothbrush stations;

[0007] A control mechanism, comprising a lifting component, a driving component, and a telescopic component; the lifting component is installed on the transport line, a second mounting plate is installed on the lifting end of the lifting component, the driving component and the telescopic component are both installed on the second mounting plate, a plurality of vacuum suction cups are installed on the output end of the driving component, and a plurality of top cylinders are installed on the telescopic end of the telescopic component.

[0008] A visual inspection mechanism includes several side inspection cameras and two end inspection cameras; the two end inspection cameras are respectively installed on both sides of the transport line, and a side inspection camera is installed on one side of each vacuum suction cup, with the side inspection camera facing the middle of the side of the toothbrush;

[0009] A defective product rejection mechanism is installed at the discharge end of the transport line;

[0010] The toothbrush is detachably connected between the top cylinder and the vacuum suction cup, and the top cylinder and the vacuum suction cup are arranged in a corresponding manner.

[0011] According to the present invention, a defect detection device for a toothbrush as a whole is provided, which further includes a feeding mechanism. The feeding mechanism includes a defective product hopper and a good product hopper. The good product hopper is located at the discharge end of the conveyor line, and the defective product hopper is located on one side of the conveyor line. The defective product hopper is arranged opposite to the defective product rejection mechanism.

[0012] According to the present invention, a defect detection device for a toothbrush as a whole is provided, wherein the number of the side detection camera, the top cylinder and the vacuum suction cup are all four, and two visual background plates arranged side by side are installed on the bottom surface of the second mounting plate.

[0013] Two side detection cameras are mounted on the bottom surface of the second mounting plate, and the two side detection cameras are located between the two visual background plates; the other two side detection cameras are mounted on the transport line by brackets and are located at both ends of the second mounting plate.

[0014] According to the present invention, a defect detection device for an entire toothbrush is provided, wherein the driving component includes:

[0015] A servo motor, which is mounted on the second mounting plate;

[0016] Four first stepped shafts are rotatably connected to the second mounting plate via bearings; two adjacent first stepped shafts are connected by a synchronous belt drive, and one of the stepped shafts is connected to the output shaft of the servo motor via a synchronous belt drive; a bushing is installed on the top of the first stepped shaft away from the servo motor, and the bushing is installed on the top surface of the second mounting plate by screws;

[0017] Four second-step shafts are rotatably connected to the bottom of the second mounting plate via rolling bearing seats. The four second-step shafts are respectively connected to the four first-step shafts via bevel gear sets. The four vacuum suction cups are respectively threaded to the ends of the four second-step shafts. The second-step shafts are provided with through holes, and the air inlet pipes of the vacuum suction cups pass through the through holes.

[0018] According to the present invention, a defect detection device for a toothbrush as a whole is provided, wherein a tensioning wheel is installed on the second mounting plate, and the synchronous belt abuts against the tensioning wheel; a synchronous pulley is installed on the output shaft of the servo motor and the first stepped shaft, and adjacent synchronous pulleys are connected by the synchronous belt drive.

[0019] According to the present invention, a defect detection device for an entire toothbrush is provided, wherein the telescopic component includes:

[0020] A linear guide cylinder, wherein the linear guide cylinder is mounted on the bottom surface of the second mounting plate;

[0021] A top cylinder mounting plate is installed on the piston end of the linear guide cylinder, and four top cylinders are installed at intervals on the top cylinder mounting plate.

[0022] The linear guide rail has two rods arranged side by side. The two ends of the linear guide rail are mounted on the bottom surface of the second mounting plate through the linear guide rail base. The top cylinder mounting plate is slidably connected to the two linear guide rail rods through two second linear bearings.

[0023] According to the present invention, a defect detection device for an entire toothbrush is provided, wherein the lifting component includes:

[0024] A first mounting plate has several lifting guide rods mounted on its bottom surface. The bottom of each lifting guide rod is fixedly mounted on the top of the transport line via a guide post mounting base. A second mounting plate is slidably connected to the lifting guide rods via several first linear bearings.

[0025] A lifting cylinder is mounted on the first mounting plate, and a cylinder connecting plate is mounted on the piston end of the lifting cylinder. The top surface of the second mounting plate is fixedly connected to the cylinder connecting plate.

[0026] According to the present invention, a defect detection device for a toothbrush is provided. The toothbrush station includes a station base and an adjustment block. The station base is installed on the transport line. The top surface of the station base is provided with a sliding groove. Two adjustment blocks are arranged side by side. The two adjustment blocks are detachably connected in the sliding groove. The top of the adjustment block is provided with a groove. The toothbrush is placed in the two grooves.

[0027] According to the present invention, a defect detection device for a toothbrush as a whole is provided. The defective product rejection mechanism includes a rejection cylinder, which is mounted on the top surface of the discharge end of the conveyor line via a bracket. A push plate is installed on the piston end of the rejection cylinder, and the push plate faces the defective product hopper.

[0028] The present invention discloses the following technical effects:

[0029] This invention utilizes a conveyor line to transport multiple toothbrush stations, ensuring efficient inspection. A defective product rejection mechanism removes substandard toothbrushes. When a toothbrush station enters below the control mechanism, the conveyor line stops. At this point, a lifting assembly lowers the second mounting plate, drive assembly, and telescopic assembly. The telescopic assembly extends, fixing the toothbrushes at each station between several top cylinders and several vacuum suction cups. The lifting assembly then raises the second mounting plate, separating the toothbrushes from their stations. The drive assembly rotates the vacuum suction cups, allowing the toothbrushes to move from the stations. The toothbrush rotates, and the side inspection camera performs defect detection on each of the four sides of the toothbrush. After the inspection, the lifting component lowers the second mounting plate, and the telescopic component retracts, releasing the toothbrush to the toothbrush station. The toothbrush is then transported along the conveyor line and passes through two end inspection cameras to perform defect detection on both ends. This allows for the inspection of all six sides of the toothbrush, including the top, bottom, left, right, front, and back, thus completing a comprehensive inspection of the entire toothbrush. This effectively improves the yield rate of toothbrush production, avoids the tediousness of manual inspection, reduces the false detection rate of manual inspection, and improves inspection efficiency and effectiveness. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0031] Figure 1 This is a schematic diagram of the structure of the present invention. Figure I ;

[0032] Figure 2 This is a schematic diagram of the structure of the present invention. Figure II ;

[0033] Figure 3 This is a schematic diagram of the lifting component in this utility model;

[0034] Figure 4 This is a schematic diagram of the drive component in this utility model;

[0035] Figure 5 This is a schematic diagram of the telescopic component in this utility model;

[0036] Figure 6 This is a schematic diagram of the toothbrush side inspection in this utility model. Figure I ;

[0037] Figure 7 This is a schematic diagram of the toothbrush side inspection in this utility model. Figure II ;

[0038] Figure 8 This is a schematic diagram of the toothbrush side inspection in this utility model. Figure III ;

[0039] Figure 9 This is a schematic diagram of the toothbrush side inspection in this utility model. Figure IV ;

[0040] Figure 10 This is a schematic diagram of the toothbrush station in this utility model;

[0041] Figure 11 This is a schematic diagram of the structure of the present invention. Figure III .

[0042] The components include: 1. Transport line; 2. Control mechanism; 3. Visual inspection mechanism; 4. Defective product rejection mechanism; 5. Unloading mechanism; 6. Visual background board; 7. Toothbrush station; 31. Side inspection camera; 32. End inspection camera; 51. Defective product hopper; 52. Good product hopper; 71. Station base; 72. Adjusting block; 73. Toothbrush; 201. Lifting cylinder; 202. First mounting plate; 203. Lifting guide rod; 204. First linear bearing; 205. Guide post mounting base; 20 6. Cylinder connecting plate; 207. Second mounting plate; 208. Bevel gear set; 209. First stepped shaft; 210. Synchronous belt; 211. Servo motor; 212. Rolling bearing seat; 213. Vacuum suction cup; 214. Second stepped shaft; 215. Tensioner wheel; 216. Synchronous belt pulley; 217. Bushing; 218. Linear guide base; 219. Top cylinder mounting plate; 220. Top cylinder; 221. Linear guide cylinder; 222. Linear guide rod; 223. Second linear bearing. Detailed Implementation

[0043] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0044] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0045] Reference Figures 1-11 This utility model provides a defect detection device for an entire toothbrush, comprising:

[0046] Transport line 1, on which several toothbrush stations 7 are installed at intervals; toothbrushes 73 are placed on the toothbrush stations 7; transport line 1 adopts chain conveyor belt equipment, the internal structure and working principle of which are existing technologies and will not be described in detail here.

[0047] Control mechanism 2 includes a lifting component, a driving component, and a telescopic component; the lifting component is installed on the transport line 1, and a second mounting plate 207 is installed on the lifting end of the lifting component. The driving component and the telescopic component are both installed on the second mounting plate 207. Several vacuum suction cups 213 are installed on the output end of the driving component, and several top cylinders 220 are installed on the telescopic end of the telescopic component.

[0048] The visual inspection mechanism 3 includes several side inspection cameras 31 and two end inspection cameras 32; the two end inspection cameras 32 are respectively installed on both sides of the transport line 1, and a side inspection camera 31 is installed on one side of each vacuum suction cup 213, with the side inspection camera 31 facing the middle of the side of the toothbrush 73.

[0049] Defective product rejection mechanism 4 is installed at the discharge end of conveyor line 1;

[0050] Among them, several top cylinders 220 and several vacuum suction cups 213 are arranged in a one-to-one correspondence, and the toothbrush 73 is detachably connected between the top cylinder 220 and the vacuum suction cups 213.

[0051] With this configuration, the present invention uses the transport line 1 to transport several toothbrush stations 7, ensuring high efficiency in inspection. Defective toothbrushes are removed by the defective product rejection mechanism 4. When the toothbrush station 7 enters below the control mechanism 2, the transport line 1 stops operating. At this time, the lifting component lowers the second mounting plate 207, the drive component, and the telescopic component. The telescopic component extends, fixing the toothbrushes 73 on the toothbrush stations 7 between several top cylinders 220 and several vacuum suction cups 213. Then, the lifting component raises the second mounting plate 207, separating the toothbrushes 73 from the toothbrush station 7. The drive component then moves the several vacuum suction cups 213. The toothbrush 73 rotates, causing it to rotate. The side inspection camera 31 performs defect inspection on the four sides of the toothbrush 73. After the inspection, the lifting component lowers the second mounting plate 207 and the telescopic component retracts, releasing the toothbrush 73 to the toothbrush station 7. The toothbrush 73 is then transported through the conveyor line 1 and inspected by two end inspection cameras 32. This allows for inspection of all six sides of the toothbrush 73, including the top, bottom, left, right, front, and back, thus completing a comprehensive inspection of the toothbrush 73. This effectively improves the yield rate of toothbrush 73 production, avoids the tediousness of manual inspection, reduces the false detection rate of manual inspection, and improves inspection efficiency and effectiveness.

[0052] Further optimization of the scheme also includes a feeding mechanism 5, which includes a defective product hopper 51 and a good product hopper 52. The good product hopper 52 is located at the discharge end of the transport line 1, and the defective product hopper 51 is located on one side of the transport line 1. The defective product hopper 51 is set opposite to the defective product rejection mechanism 4.

[0053] For the qualified toothbrush 73, the transport line 1 continues to operate, transporting it to the discharge end. The qualified toothbrush 73 will fall directly into the good product hopper 52, completing the collection of good products.

[0054] When toothbrush 73 is detected as a defective product, transport line 1 continues to operate, conveying the defective product to defective product rejection mechanism 4. At this time, defective product rejection mechanism 4 activates, pushing the defective toothbrush 73 off the transport line 1 and causing it to fall into the defective product hopper 51, which is set opposite to defective product rejection mechanism 4, to achieve separate collection of defective products.

[0055] The scheme is further optimized so that there are four side detection cameras 31, four top cylinders 220 and four vacuum suction cups 213, and two visual background plates 6 are installed side by side on the bottom surface of the second mounting plate 207.

[0056] Two side detection cameras 31 are mounted on the bottom surface of the second mounting plate 207, and the two side detection cameras 31 are located between the two visual background plates 6; the other two side detection cameras 31 are mounted on the transport line 1 by brackets and are located at both ends of the second mounting plate 207.

[0057] When the toothbrush 73 is fixed between the top cylinder 220 and the vacuum suction cup 213 and lifted, the drive assembly drives the vacuum suction cup 213 to rotate, which in turn drives the toothbrush 73 to rotate. During the rotation, the side detection camera 31 takes pictures of the four sides of the toothbrush 73 respectively. The visual background plate 6 provides a uniform background for the detection, which helps to improve the clarity and accuracy of image acquisition and facilitates the subsequent judgment of defects on the sides of the toothbrush 73.

[0058] Further optimization of the solution, the driving components include:

[0059] Servo motor 211 is mounted on the second mounting plate 207;

[0060] Four first-step shafts 209 are rotatably connected to the second mounting plate 207 via bearings; two adjacent first-step shafts 209 are connected by a synchronous belt 210, and one of the first-step shafts is connected to the output shaft of the servo motor 211 via the synchronous belt 210; a bushing 217 is installed on the top of the first-step shaft 209 away from the servo motor 211, and the bushing 217 is installed on the top surface of the second mounting plate 207 by screws;

[0061] Four second-step shafts 214 are rotatably connected to the bottom of the second mounting plate 207 via rolling bearing seats 212. The four second-step shafts 214 are respectively connected to four first-step shafts 209 via bevel gear sets 208. Four vacuum suction cups 213 are respectively threaded to the ends of the four second-step shafts 214. The second-step shafts 214 are provided with through holes, and the air inlet pipes of the vacuum suction cups 213 pass through the through holes; the air inlet pipes are connected to external air supply equipment.

[0062] The servo motor 211 serves as a power source and is connected to one of the first stepped shafts 209 via a synchronous belt 210. The two adjacent first stepped shafts 209 are also connected via a synchronous belt 210, thereby achieving synchronous rotation of the four first stepped shafts 209. A bushing 217 is installed on the top of the first stepped shaft 209 away from the servo motor 211 and is fixed to the top surface of the second mounting plate 207 by screws, ensuring the stability of the first stepped shaft 209 installation.

[0063] Four second-step shafts 214 are rotatably connected to the bottom of the second mounting plate 207 via rolling bearing seats 212, and are respectively connected to four first-step shafts 209 via bevel gear sets 208. This transmission method realizes the redirection of power transmission, converting the horizontal rotation of the first-step shafts 209 into the vertical rotation of the second-step shafts 214. Four vacuum suction cups 213 are respectively threaded to the ends of the four second-step shafts 214, and rotate with the rotation of the second-step shafts 214, thereby driving the toothbrush 73 to rotate so that the side detection camera 31 can perform detection.

[0064] Further optimization of the scheme: a tensioning pulley 215 is installed on the second mounting plate 207, and the synchronous belt 210 abuts against the tensioning pulley 215; a synchronous pulley 216 is installed on the output shaft of the servo motor 211 and the first stepped shaft 209; adjacent synchronous pulleys 216 are connected by synchronous belt 210, and the transmission ratio of the two synchronous pulleys 216 is 1:1; the transmission ratio of the two bevel gears in each bevel gear set 208 is 1:1.

[0065] By adjusting the position of the tensioning wheel 215, the timing belt 210 can maintain appropriate tension to ensure transmission stability. The transmission ratio between the timing pulley 216 and the bevel gear set 208 is 1:1, which ensures that the rotational speeds of each transmission component are consistent, thereby achieving that each testing station rotates at the same angle, enabling multiple sets of toothbrushes 73 to rotate synchronously, stably, and uniformly.

[0066] Further optimization of the solution includes the following scaling components:

[0067] Linear guide cylinder 221 is mounted on the bottom surface of the second mounting plate 207;

[0068] Top cylinder mounting plate 219 is installed on the piston end of linear guide cylinder 221, and four top cylinders 220 are installed on top cylinder mounting plate 219 at intervals.

[0069] Linear guide rail 222, two linear guide rail 222 are arranged side by side, and the two ends of the linear guide rail 222 are mounted on the bottom surface of the second mounting plate 207 through the linear guide rail base 218. The top cylinder mounting plate 219 is slidably connected to the two linear guide rail 222 through two second linear bearings 223.

[0070] The linear guide cylinder 221 serves as the power source for extension and retraction. When the piston rod of the linear guide cylinder 221 extends, it drives the top cylinder mounting plate 219 to move forward, thereby causing the four top cylinders 220 to extend forward and cooperate with the vacuum suction cup 213 to fix the toothbrush 73. When the piston rod retracts, the top cylinders 220 retract accordingly, releasing the toothbrush 73.

[0071] The linear guide rod 222 and the second linear bearing 223 play a guiding role, ensuring the linear movement of the top cylinder mounting plate 219 during the extension and retraction process, and improving the stability and accuracy of the extension and retraction.

[0072] Further optimization of the solution, including raising the components:

[0073] The first mounting plate 202 has several lifting guide rods 203 mounted on its bottom surface. The bottom of the lifting guide rods 203 is fixedly mounted on the top of the transport line 1 through the guide post mounting base 205. The second mounting plate 207 is slidably connected to the several lifting guide rods 203 through several first linear bearings 204.

[0074] Lifting cylinder 201 is mounted on the first mounting plate 202. The piston end of the lifting cylinder 201 is equipped with a cylinder connecting plate 206. The top surface of the second mounting plate 207 is fixedly connected to the cylinder connecting plate 206.

[0075] The lifting cylinder 201 serves as the power source for lifting. When the piston rod of the lifting cylinder 201 extends, it drives the second mounting plate 207 to rise through the cylinder connecting plate 206. When the piston rod retracts, it drives the second mounting plate 207 to fall, thereby realizing the lifting control of the second mounting plate 207 and the drive components, telescopic components, etc. installed on it.

[0076] The toothbrush station 7 is further optimized by including a station base 71 and an adjustment block 72. The station base 71 is installed on the transport line 1. The top surface of the station base 71 is provided with a sliding groove. Two adjustment blocks 72 are arranged side by side. The two adjustment blocks 72 are detachably connected in the sliding groove. The top of the adjustment block 72 is provided with a groove. The toothbrush 73 is placed in the two grooves.

[0077] By adjusting the position of the adjusting block 72 in the groove, toothbrushes 73 of different lengths or sizes can be accommodated. The top of the adjusting block 72 is provided with a groove, and the toothbrush 73 is placed in the two grooves. The grooves play a role in positioning and limiting the toothbrush 73, ensuring the stability of the toothbrush 73 during transportation and preventing it from shaking or shifting during transportation, which would affect the accuracy of subsequent testing.

[0078] The scheme is further optimized. The defective product rejection mechanism 4 includes a rejection cylinder. The rejection cylinder is installed on the top surface of the discharge end of the conveyor line 1 via a bracket. A push plate is installed on the piston end of the rejection cylinder, and the push plate faces the defective product hopper 51.

[0079] When toothbrush 73 is detected as a defective product, the conveyor line 1 transports the defective product to the location of the rejection cylinder. At this time, the piston rod of the rejection cylinder extends, driving the push plate to move forward, pushing the defective toothbrush 73 away from the conveyor line 1 and causing it to fall into the defective product hopper 51, thus completing the rejection action of the defective product.

[0080] Further optimization of the scheme: transport line 1, side inspection camera 31, end inspection camera 32, lifting cylinder 201, servo motor 211, linear guide cylinder 221 and rejection cylinder are all electrically connected to a PLC controller (not shown in the figure) to realize automatic operation. Controlling each component through PLC is existing technology and will not be described in detail here.

[0081] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0082] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. For those skilled in the art, other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A device for detecting defects in a toothbrush as a whole, characterized in that, include: A transport line (1) is provided, on which a number of toothbrush stations (7) are arranged at intervals; toothbrushes (73) are placed on the toothbrush stations (7); The control mechanism (2) includes a lifting component, a driving component, and a telescopic component; the lifting component is installed on the transport line (1), and a second mounting plate (207) is installed on the lifting end of the lifting component; the driving component and the telescopic component are both installed on the second mounting plate (207); a plurality of vacuum suction cups (213) are installed on the output end of the driving component; and a plurality of top cylinders (220) are installed on the telescopic end of the telescopic component. The visual inspection mechanism (3) includes several side inspection cameras (31) and two end inspection cameras (32); the two end inspection cameras (32) are respectively installed on both sides of the transport line (1), and each vacuum suction cup (213) is equipped with a side inspection camera (31) on one side, and the side inspection camera (31) faces the middle of the side of the toothbrush (73); A defective product rejection mechanism (4) is installed at the discharge end of the transport line (1); The top cylinders (220) and vacuum suction cups (213) are arranged in a one-to-one correspondence, and the toothbrush (73) is detachably connected between the top cylinders (220) and the vacuum suction cups (213).

2. The apparatus for detecting defects of the entire toothbrush according to claim 1, characterized by: It also includes a feeding mechanism (5), which includes a defective product hopper (51) and a good product hopper (52). The good product hopper (52) is located at the discharge end of the transport line (1), and the defective product hopper (51) is located on one side of the transport line (1). The defective product hopper (51) is arranged opposite to the defective product rejection mechanism (4).

3. The apparatus for detecting defects of the whole toothbrush according to claim 1, wherein: The number of the side detection camera (31), the top cylinder (220) and the vacuum suction cup (213) are all four, and two visual background plates (6) are installed side by side on the bottom surface of the second mounting plate (207); Two side detection cameras (31) are mounted on the bottom surface of the second mounting plate (207), and the two side detection cameras (31) are located between the two visual background plates (6); the other two side detection cameras (31) are mounted on the transport line (1) by brackets and are located at both ends of the second mounting plate (207).

4. The apparatus for detecting defects of the entire toothbrush according to claim 3, characterized by: The driving component includes: A servo motor (211) is mounted on the second mounting plate (207); Four first stepped shafts (209) are rotatably connected to the second mounting plate (207) via bearings; two adjacent first stepped shafts (209) are connected by a synchronous belt (210), and one of the stepped shafts is connected to the output shaft of the servo motor (211) via the synchronous belt (210); a bushing (217) is installed on the top of the first stepped shaft (209) away from the servo motor (211), and the bushing (217) is installed on the top surface of the second mounting plate (207) by screws; Four second-step shafts (214) are rotatably connected to the bottom of the second mounting plate (207) via rolling bearing seats (212). The four second-step shafts (214) are respectively connected to the four first-step shafts (209) via bevel gear sets (208). The four vacuum suction cups (213) are respectively threaded to the ends of the four second-step shafts (214). The second-step shafts (214) are provided with through holes, and the air inlet pipes of the vacuum suction cups (213) pass through the through holes.

5. The defect detection device for the entire toothbrush according to claim 4, characterized in that: A tensioning pulley (215) is installed on the second mounting plate (207), and the synchronous belt (210) abuts against the tensioning pulley (215); a synchronous pulley (216) is installed on the output shaft of the servo motor (211) and the first stepped shaft (209), and two adjacent synchronous pulleys (216) are connected by the synchronous belt (210).

6. The defect detection device for the entire toothbrush according to claim 3, characterized in that: The telescopic component includes: Linear guide cylinder (221), the linear guide cylinder (221) is mounted on the bottom surface of the second mounting plate (207); Top cylinder mounting plate (219), the top cylinder mounting plate (219) is mounted on the piston end of the linear guide cylinder (221), and four top cylinders (220) are spaced apart on the top cylinder mounting plate (219); Linear guide rail (222), two linear guide rails (222) are arranged side by side, and the two ends of the linear guide rails (222) are mounted on the bottom surface of the second mounting plate (207) through the linear guide rail base (218). The top cylinder mounting plate (219) is slidably connected to the two linear guide rails (222) through two second linear bearings (223).

7. The defect detection device for the entire toothbrush according to claim 1, characterized in that: The lifting component includes: The first mounting plate (202) has a plurality of lifting guide rods (203) mounted on its bottom surface. The bottom of the lifting guide rods (203) is fixedly mounted on the top of the transport line (1) by a guide post mounting base (205). The second mounting plate (207) is slidably connected to the plurality of lifting guide rods (203) by a plurality of first linear bearings (204). A lifting cylinder (201) is mounted on the first mounting plate (202). A cylinder connecting plate (206) is mounted on the piston end of the lifting cylinder (201). The top surface of the second mounting plate (207) is fixedly connected to the cylinder connecting plate (206).

8. The defect detection device for the entire toothbrush according to claim 1, characterized in that: The toothbrush station (7) includes a station base (71) and an adjustment block (72). The station base (71) is installed on the transport line (1). The top surface of the station base (71) is provided with a sliding groove. Two adjustment blocks (72) are arranged side by side. The two adjustment blocks (72) are detachably connected in the sliding groove. The top of the adjustment block (72) is provided with a groove. The toothbrush (73) is placed in the two grooves.

9. The defect detection device for the entire toothbrush according to claim 2, characterized in that: The defective product rejection mechanism (4) includes a rejection cylinder, which is mounted on the top surface of the discharge end of the conveyor line (1) via a bracket. A push plate is installed on the piston end of the rejection cylinder, and the push plate faces the defective product hopper (51).

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