Mask nose bridge strip detection device

Abstract

The utility model discloses a mask nose bridge strip detection device, which comprises a mask conveying structure and a mask detection structure, the mask conveying structure comprises a first mounting seat and a second mounting seat, and the inner walls of the first mounting seat and the second mounting seat are provided with conveyor belts; the mask detection structure is composed of a protective cover, a nose bridge strip detection assembly and an ear hanging rope detection assembly, the nose bridge strip detection assembly and the ear hanging rope detection assembly are arranged in the protective cover, the nose bridge strip detection assembly comprises an installation frame fixedly installed on the inner top wall of the protective cover, and an inductance type proximity sensor is fixedly installed on the lower surface of the installation frame. Compared with the prior art, the mask nose bridge strip detection device has the advantages that in the process of conveying mask bodies through the conveying belt, the ear hanging ropes of the mask bodies can be detected through the ear hanging rope detection assembly, and the mask bodies with unqualified ear hanging ropes are removed; meanwhile, the inductance type proximity sensor can detect the nose bridge strip of the mask body, and therefore diversity detection can be conducted on the mask body.

Description

Technical Field

[0001] The utility model relates to the technical field of mask detection equipment, in particular to a mask nose bridge strip detection device. Background Technique

[0002] When masks are continuously and rapidly produced, the metal nose bridge strip, as an auxiliary material, is directly added to the upper side of the flat mask and wrapped by the mask fabric. Sometimes, the problem of missing nose bridge strips in masks may occur during the production process. Therefore, it is necessary to detect the nose bridge strips after mask production.

[0003] Chinese authorized publication number CN220040777U discloses a mask nose bridge strip detection device, which includes a bracket arranged on one side of a conveyor belt. An electromagnetic proximity switch capable of detecting the nose bridge strip clamped in multiple material layers is provided on the bracket. A sleeve fixed to the bracket is arranged on one side of the electromagnetic proximity switch. A sleeve rod is slidably connected to the lower part of the sleeve. A push-button switch is arranged at the inner top of the sleeve. The push-button switch is connected to an indicator light on the upper part of the bracket. A spring is arranged between the sleeve and the sleeve rod. A connecting rod is arranged at the bottom of the sleeve rod. A rotating roller capable of rolling the mask is hinged to the lower part of the connecting rod. The electromagnetic proximity switch detects the mask once. Then, the rotating roller contacts the mask detected by the electromagnetic proximity switch. Since the nose bridge strip is convex, the sleeve rod moves upward along the sleeve, pressing the push-button switch, thereby starting the indicator light. If there is no nose bridge strip, the push-button switch cannot be pressed and the indicator light does not light, thereby performing a secondary detection on the mask and improving the detection accuracy.

[0004] However, this device can only detect the nose bridge strips of masks, cannot perform diversity detection on masks, and cannot reject the masks that fail the detection. In view of the above defects: Therefore, we propose a mask nose bridge strip detection device. Content of the Utility Model

[0005] The purpose of the utility model is to provide a mask nose bridge strip detection device to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A mask nose bridge strip detection device, including:

[0007] A mask conveying structure, the mask conveying structure includes a first mounting seat and a second mounting seat, and conveyor belts are arranged on the inner walls of the first mounting seat and the second mounting seat;

[0008] A mask detection structure, the mask detection structure is composed of a protective cover and a nose bridge strip detection component and an earloop detection component respectively arranged inside the protective cover;

[0009] The nose bridge strip detection component includes a mounting frame fixedly installed on the inner top wall of the protective cover, and an inductive proximity sensor is fixedly installed on the lower surface of the mounting frame;

[0010] The earloop detection component includes a first support plate and a second support plate fixedly installed on the rear inner wall and the front inner wall of the protective cover respectively. The right side surfaces of the first support plate and the second support plate are both rotatably connected with earloop lifting components, and a driving component for driving the earloop lifting components to rotate is arranged on the left side of the first support plate and the second support plate;

[0011] The earloop lifting components include rotating disks rotatably installed on the right side surfaces of the first support plate and the second support plate respectively. Three connecting frames are fixedly installed on the outer surfaces of the rotating disks respectively. The inner walls of the three connecting frames are all rotatably connected with lifting rods through rotating shafts.

[0012] Preferably, the driving component includes a first spur gear rotatably installed on the left side surface of the second support plate. A driven sprocket is fixedly installed at the left end of the first spur gear. A motor is fixedly installed on the left side surface of the first support plate through a bracket. The left end of the rotating disk on the first support plate extends to the left side of the first support plate and is fixedly installed with a driving sprocket. The left end of the rotating disk on the second support plate extends to the left side surface of the second support plate and is fixedly installed with a second spur gear.

[0013] Preferably, the first spur gear and the second spur gear are in meshing transmission, and the driving sprocket and the driven sprocket are connected by a chain.

[0014] Preferably, a torsion spring for driving the lifting rod to reset is sleeved on the surface of the rotating shaft.

[0015] Preferably, a mask rejection component is arranged on the upper surface of the first mounting seat. The mask rejection component includes a connecting frame fixedly installed on the upper surface of the first mounting seat. An electric telescopic rod is fixedly installed on the upper surface of the connecting frame. A push block is fixedly installed at the lower end of the electric telescopic rod.

[0016] Preferably, the distance between the first mounting seat and the second mounting seat is 3 - 5 CM. Beneficial effects

[0017] The utility model provides a mask nose bridge strip detection device, which has the following beneficial effects:

[0018] 1. The nose bridge strip detection device for the mask, by setting up a mask detection structure, after placing the mask body on the conveyor belt on the first mounting seat, at this time, the ear loops on both sides of the mask body are on the front and back of the conveyor belt. When the mask body is transported to the position of the ear loop detection component, the conveyor belt stops working at this time, and the driving component will drive the rotating disk and the picking rod to rotate synchronously. When the picking rods on the first support plate and the second support plate rotate synchronously, the picking rod will contact the ear loop and pull the ear loop. When the ear loop is unqualified, one side of the ear loop will fall off, so that the picking rod can pick up the ear loop and the mask body from the conveyor belt. When the ear loop is qualified, the picking rod will rotate under force and disengage from the ear loop. After that, the mask body will continue to be transported to the position of the inductive proximity sensor, and the nose bridge strip of the mask body will be detected. Compared with the prior art, during the process of transporting the mask body by the conveyor belt, the ear loop detection component can detect the ear loops of the mask body and remove the mask bodies with unqualified ear loops. At the same time, the inductive proximity sensor can detect the nose bridge strip of the mask body, so as to conduct diversified detection on the mask body.

[0019] 2. The nose bridge strip detection device for the mask, by setting up a mask removal component, when the inductive proximity sensor senses that the mask body has no nose bridge strip, at this time, the conveyor belt on the first mounting seat will transport the mask body between the first mounting seat and the second mounting seat. After that, the electric telescopic rod descends to drive the push block to descend, and push out the unqualified mask body along the gap between the first mounting seat and the second mounting seat, so as to remove the mask bodies with unqualified nose bridge strips. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0021] Figure 2 is a top-view structural schematic diagram of the ear loop detection component of the present utility model;

[0022] Figure 3 is a three-dimensional structural schematic diagram of the ear loop lifting component of the present utility model;

[0023] Figure 4 is a side-sectional structural schematic diagram of the protective cover of the present utility model;

[0024] Figure 5 is Figure 2 an enlarged structural schematic diagram of part A in

[0025] Figure 6 is Figure 4 an enlarged structural schematic diagram of part B in

[0026] In the figure: 1 First mounting base, 2 Second mounting base, 3 Conveyor belt, 4 Protective cover, 5 Mounting frame, 6 Inductive proximity sensor, 7 First support plate, 8 Second support plate, 9 Rotating disk, 10 Connecting frame, 11 Rotating shaft, 12 Picking rod, 13 First spur gear, 14 Driven sprocket, 15 Motor, 16 Driving sprocket, 17 Second spur gear, 18 Torsion spring, 19 Connecting frame, 20 Electric telescopic rod, 21 Pushing block, 22 Mask body. Specific implementation mode

[0027] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0028] Please refer to Figures 1-6 , the present invention provides a technical solution: a mask nose strip detection device, including: a mask conveying structure and a mask detection structure.

[0029] The mask conveying structure includes a first mounting base 1 and a second mounting base 2. The inner walls of the first mounting base 1 and the second mounting base 2 are both provided with a conveyor belt 3. The distance between the first mounting base 1 and the second mounting base 2 is 3 - 5 cm. After placing the mask body 22 on the conveyor belt 3 of the first mounting base 1, the conveyor belt 3 on the first mounting base 1 can be used to convey the mask body 22 to the conveyor belt 3 on the second mounting base 2.

[0030] The mask detection structure is composed of a protective cover 4 and a nose strip detection component and an earloop detection component respectively arranged inside the protective cover 4, and the middle part of the first mounting base 1 is inside the protective cover 4.

[0031] The earloop detection component includes a first support plate 7 and a second support plate 8 respectively fixedly installed on the inner rear wall and the inner front wall of the protective cover 4. The right side surfaces of the first support plate 7 and the second support plate 8 are both rotatably connected with earloop picking components. The earloop picking components include rotating disks 9 respectively rotatably installed on the right side surfaces of the first support plate 7 and the second support plate 8. Three connecting frames 10 are respectively fixedly installed on the outer surfaces of the rotating disks 9. The inner walls of the three connecting frames 10 are all rotatably connected with picking rods 12 through rotating shafts 11, and torsion springs 18 for driving the picking rods 12 to reset are sleeved on the surfaces of the rotating shafts 11.

[0032] On the left side of the first support plate 7 and the second support plate 8, there is a driving component that can drive the earloop lifting component to rotate. The driving component includes a first spur gear 13 rotatably mounted on the left side surface of the second support plate 8. A driven sprocket 14 is fixedly installed at the left end of the first spur gear 13. A motor 15 is fixedly installed on the left side surface of the first support plate 7 through a bracket. The left end of the rotating disc 9 on the first support plate 7 extends to the left side of the first support plate 7 and is fixedly installed with a driving sprocket 16. The driving sprocket 16 and the driven sprocket 14 are connected by a chain drive. The left end of the rotating disc 9 on the second support plate 8 extends to the left side surface of the second support plate 8 and is fixedly installed with a second spur gear 17. The first spur gear 13 and the second spur gear 17 are engaged for transmission.

[0033] The driving motor 15 can drive the driving sprocket 16 and the rotating disc 9 on the first support plate 7 to rotate. At the same time, the chain drive can drive the driven sprocket 14 and the first spur gear 13 to rotate, and the meshing transmission between the first spur gear 13 and the second spur gear 17 can drive the rotating disc 9 on the second support plate 8 to rotate.

[0034] After placing the mask body 22 on the conveyor belt 3 on the first mounting seat 1, at this time, the earloops on both sides of the mask body 22 are respectively on the front and back of the conveyor belt 3. When the mask body 22 is transported to the position of the earloop detection component, the conveyor belt 3 stops working at this time, and the driving component will drive the rotating disc 9 and the pick rod 12 to rotate synchronously. When the pick rods 12 on the first support plate 7 and the second support plate 8 rotate synchronously, the pick rod 12 will contact the earloop and pull the earloop. When the earloop is unqualified, one side of the earloop will fall off the mask body 22, so that the pick rod 12 can pick off the other side earloop and the mask body 22 from the conveyor belt 3. When the earloop is qualified, the pick rod 12 will rotate against the elastic force of the torsion spring 18 under force. When the pick rod 12 rotates along the inner wall of the connecting frame 10, it will disengage from the earloop. At this time, the mask body 22 is still on the conveyor belt 3.

[0035] The nose strip detection component includes a mounting frame 5 fixedly installed on the inner top wall of the protective cover 4. An inductive proximity sensor 6 is fixedly installed on the lower surface of the mounting frame 5. After the mask body 22 passes the detection of the earloop detection component and is qualified, then the mask body 22 will continue to be transported to the position of the inductive proximity sensor 6. The working principle of the inductive proximity sensor 6 is to use the inductive principle to detect the approach of an object. When a metal object approaches the sensor, it will change the magnetic field distribution inside the sensor coil, thereby causing a change in the inductance value inside the coil. Since the nose strip is made of metal material, it can detect whether there is a nose strip in the mask body 22.

[0036] Compared with the prior art, during the process of conveying the mask body 22 by the conveyor belt 3, the earloop detection component can detect the earloops of the mask body 22, and pick out and reject the mask body 22 with unqualified earloops. At the same time, the inductive proximity sensor 6 can detect the nose strip of the mask body 22, so as to perform diversified detection on the mask body 22.

[0037] A mask rejection component is arranged on the upper surface of the first mounting seat 1. The mask rejection component includes an adapter frame 19 fixedly mounted on the upper surface of the first mounting seat 1. An electric telescopic rod 20 is fixedly mounted on the upper surface of the adapter frame 19, and a push block 21 is fixedly mounted at the lower end of the electric telescopic rod 20.

[0038] The conveyor belt 3, the electric telescopic rod 20, the motor 15 and the inductive proximity sensor 6 are all connected to an external control system. When the inductive proximity sensor 6 senses that the mask body 22 has no nose strip, at this time, the conveyor belt 3 on the first mounting seat 1 will convey the mask body 22 to the space between the first mounting seat 1 and the second mounting seat 2. Then the electric telescopic rod 20 descends to drive the push block 21 to descend, and push out the unqualified mask body 22 along the gap between the first mounting seat 1 and the second mounting seat 2, so as to reject the mask body 22 with an unqualified nose strip.

[0039] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A mask nose bridge detection device, characterized in that: include: A mask conveying structure, the mask conveying structure comprising a first mounting seat (1) and a second mounting seat (2), wherein inner walls of the first mounting seat (1) and the second mounting seat (2) are both provided with a conveyor belt (3); A mask detection structure, the mask detection structure comprising a protective cover (4) and a nose bridge detection component and an ear hanging rope detection component respectively arranged inside the protective cover (4); The nose bridge strip detection component comprises a mounting frame (5) fixedly mounted on the inner top wall of the protective cover (4), and an inductive proximity sensor (6) is fixedly mounted on the lower surface of the mounting frame (5); The ear hook rope detection assembly comprises a first support plate (7) and a second support plate (8) respectively fixedly mounted on the inner rear wall and the inner front wall of the protective cover (4); the right sides of the first support plate (7) and the second support plate (8) are both rotatably connected with ear hook rope lifting components, and the left sides of the first support plate (7) and the second support plate (8) are provided with a driving component capable of driving the ear hook rope lifting components to rotate; The ear hook rope lifting component comprises a rotating disk (9) rotatably mounted on the right side of the first support plate (7) and the second support plate (8), three connecting frames (10) are fixedly mounted on the outer surface of the rotating disk (9), and the inner walls of the three connecting frames (10) are rotatably connected to the lifting rod (12) via a rotating shaft (11).

2. A mask nose bridge detection device according to claim 1, characterized in that: The driving component comprises a first spur gear (13) rotatably mounted on the left side of the second support plate (8), a driven sprocket (14) being fixedly mounted on the left end of the first spur gear (13), a motor (15) being fixedly mounted on the left side of the first support plate (7) via a bracket, a left end of a rotating disk (9) on the first support plate (7) extending to the left side of the first support plate (7) and being fixedly mounted with a driving sprocket (16), and a left end of a rotating disk (9) on the second support plate (8) extending to the left side of the second support plate (8) and being fixedly mounted with a second spur gear (17).

3. A mask nose bridge detection device according to claim 2, characterized in that: The first spur gear (13) is meshed with the second spur gear (17) for transmission, and the driving sprocket (16) and the driven sprocket (14) are connected via a chain transmission.

4. A mask nose bridge detection device according to claim 1, characterized in that: The surface of the rotating shaft (11) is sleeved with a torsion spring (18) capable of driving the lifting rod (12) to return to its original position.

5. A mask nose bridge detection device according to claim 1, characterized in that: A mask rejection assembly is provided on the upper surface of the first mounting seat (1), and the mask rejection assembly comprises a connecting frame (19) fixedly mounted on the upper surface of the first mounting seat (1), an electric telescopic rod (20) is fixedly mounted on the upper surface of the connecting frame (19), and a push block (21) is fixedly mounted on the lower end of the electric telescopic rod (20).

6. A mask nose bridge detection device according to claim 1, characterized in that: The distance between the first mounting seat (1) and the second mounting seat (2) is 3-5 cm.

Images