A clamp-type ear band application mechanism

Abstract

The application provides a clamping type ear band laying mechanism and relates to the technical field of mask manufacturing. The ear band forming device comprises a forming chuck and a clamping push disc which is arranged adjacent to the forming chuck. The forming chuck and the clamping push disc are both rotationally connected to the fixing seat. The forming chuck and the clamping push disc are both in the form of wheels and are in clamping engagement during rotation. The ear band positioning device is fixedly connected to the fixing seat and is connected to the forming chuck. The clamping type ear band laying mechanism provided by the application can adjust the shape of the ear band during conveying through cooperation of the forming chuck and the clamping push disc, thereby changing the ear band welding process into a continuous operation process, improving the efficiency of ear band welding and making the ear band welding process no longer a bottleneck restricting the production speed of masks.

Description

Technical Field

[0001] This invention relates to the field of mask manufacturing technology, and more specifically, to a clamping ear loop installation mechanism. Background Technology

[0002] Masks, especially disposable masks, are essential consumables for medical treatment and dust and toxic protection. During seasons with frequent epidemics, disposable masks are still a common item for ordinary citizens to carry when going out.

[0003] Currently, the production of disposable masks includes the mask body manufacturing process and the ear loop welding process. The mask body manufacturing process is a continuous production process with a fast production speed, but the ear loop welding process is an intermittent production process with a slower production speed. As a result, the overall production speed of masks is constrained by the ear loop welding speed, resulting in low production efficiency. Summary of the Invention

[0004] The technical problem solved by this invention is the slow speed of the ear loop welding process.

[0005] To address the above problems, the present invention provides a clamping ear loop installation mechanism, comprising an ear loop forming device, an ear loop positioning device, and a fixing base; wherein:

[0006] The ear loop forming device includes a forming plate and an engagement push plate disposed adjacent to the forming plate;

[0007] Both the forming disc and the interlocking pusher are rotatably connected to the fixed base.

[0008] Both the forming disc and the engagement pusher are wheel-shaped structures, and they engage during rotation.

[0009] The ear loop positioning device is fixedly connected to the fixed base, and the ear loop positioning device is connected to the molded flower plate.

[0010] Optionally, the outer periphery of the shaped flower plate is provided with a first limiting groove distributed in the horizontal direction.

[0011] Optionally, the ear loop forming device further includes a first gear and a second gear; the first gear is connected to the forming disc via a first connecting shaft; the first connecting shaft is rotatably connected to the fixed base; the second gear is connected to the engagement push plate via a second connecting shaft; the second connecting shaft is rotatably connected to the fixed base.

[0012] Optionally, a plurality of first protrusions are evenly distributed on the outer periphery of the shaped flower plate, and a first concave portion is formed between adjacent first protrusions;

[0013] The outer periphery of the biting pusher is evenly distributed with a plurality of second protrusions that are adapted to the first concave portion, and a second concave portion adapted to the first protrusion is formed between adjacent second protrusions.

[0014] Optionally, the ear loop forming device further includes an ear loop cutting device; the ear loop cutting device includes a blade and a bottom roller; the blade is disposed at the outer end of the first protrusion and the blade is distributed in a vertical direction; the bottom roller is rotatably connected to the fixed seat, the bottom roller is located downstream of the biting push plate, and the bottom roller abuts against the blade.

[0015] Optionally, the ear loop positioning device includes a plurality of pressure posts and a fixing wheel disposed above the pressure posts; each of the first protrusions has a first mounting hole on both sides that is adapted to the pressure post; the first mounting hole is located at the upper end of the first protrusion, and the bottom end of the first mounting hole communicates with the first limiting groove; the fixing wheel is fixedly connected to the fixing seat and is used to press the pressure post into the first mounting hole.

[0016] Optionally, the ear loop positioning device further includes several mounting plates, which are connected above the first protrusion; the mounting plates are provided with a second mounting hole adapted to the pressure post, and the pressure post is disposed in the second mounting hole.

[0017] Optionally, the ear loop positioning device further includes a spring connected to the pressure post, the spring being sleeved on the outside of the pressure post, and the spring being located between the first protrusion and the mounting plate.

[0018] Optionally, the bottom side of the fixed wheel is provided with a groove that matches the pressure column; the groove has a C-shaped structure.

[0019] Optionally, the ear loop positioning device further includes a support post and a mounting plate, wherein the bottom end of the support post is fixedly connected to the fixing base and the top end is fixedly connected to the mounting plate; the mounting plate is fixedly connected to the fixing wheel.

[0020] Compared with the prior art, the clamping ear loop installation mechanism provided by the present invention has the following advantages:

[0021] The clamping ear loop application mechanism provided by this invention uses a wheel-shaped forming disc and a wheel-shaped engagement pusher to adjust the shape of the ear loop during the rotation of the forming disc and engagement pusher. This achieves shape adjustment during the ear loop conveying process, combining the two processes into one. Then, a welding device welds the shape-adjusted ear loop to the conveyed mask body, completing the ear loop welding during the mask body conveying process. This transforms the ear loop welding process into a continuous operation, improving the efficiency of ear loop welding and eliminating it as a bottleneck restricting mask production speed. Furthermore, the continuous ear loop welding process exerts less impact on the ear loop application mechanism compared to intermittent ear loop welding, thereby extending the service life of the clamping ear loop application mechanism. Attached Figure Description

[0022] Figure 1 The structure of the clamping ear loop installation mechanism described in this invention is simplified. Figure 1 ;

[0023] Figure 2 The structure of the clamping ear loop installation mechanism described in this invention is simplified. Figure 2 ;

[0024] Figure 3 This is a schematic diagram of the working process of the clamping ear loop installation mechanism described in this invention;

[0025] Figure 4 The assembly of the ear loop forming device and the fixing base described in this invention is simplified. Figure 1 ;

[0026] Figure 5 The assembly of the ear loop forming device and the fixing base described in this invention is simplified. Figure 2 ;

[0027] Figure 6 This is a partially enlarged view of the molded flower plate described in this invention;

[0028] Figure 7 for Figure 6 AA section view in the middle;

[0029] Figure 8 This is a simplified structural diagram of the fixed wheel described in this invention.

[0030] Explanation of reference numerals in the attached figures:

[0031] 1-Ear loop forming device; 11-Forming disc; 111-First limiting groove; 112-First protrusion; 113-First recess; 12-Interlocking pusher; 121-Second protrusion; 1211-Second limiting groove; 122-Second recess; 13-First gear; 14-Second gear; 15-Ear loop cutting device; 151-Blade; 152-Bottom roller; 2-Ear loop positioning device; 21-Pressure column; 22-Fixing wheel; 221-Groove; 23-Mounting plate; 24-Spring; 25-Support column; 26-Mounting piece; 3-Fixing seat; 4-Ear loop; 5-Mask body; 51-Welding point. Detailed Implementation

[0032] Embodiments of the present invention are described in detail below. Examples of these embodiments are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0033] In the description of this invention, it should be understood that the terms "first" and "second" are used only for simplification and should not be construed as indicating or implying relative importance, or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0034] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0035] To address the problem of slow speed in the ear loop welding process, this invention provides a clamping ear loop installation mechanism, see [link to relevant documentation]. Figure 1 , Figure 2 As shown, the clamping ear loop laying mechanism includes an ear loop forming device 1, an ear loop positioning device 2, and a fixing base 3; wherein, the fixing base 3 is used to support and fix the ear loop forming device 1 and the ear loop positioning device 2; the ear loop forming device 1 is used to adjust the shape of the ear loop 4 so that the adjusted shape of the ear loop 4 can be adapted to the mask body 5, thereby further welding the ear loop 4 to the mask body 5 to obtain a mask.

[0036] Specifically, the ear loop forming device 1 includes a forming plate 11 and an engagement pusher 12 adjacent to the forming plate 11; both the forming plate 11 and the engagement pusher 12 are rotatably connected to the fixed base 3; the forming plate 11 is used to adjust the shape of the ear loop 4; both the forming plate 11 and the engagement pusher 12 are wheel-shaped structures. During the operation of this clamping ear loop laying mechanism, both the forming plate 11 and the engagement pusher 12 rotate, and the forming plate 11 and the engagement pusher 12 engage during rotation; the raw material of the ear loop 4 is transported between the forming plate 11 and the engagement pusher 12. As the forming plate 11 and the engagement pusher 12 engage during rotation, the engagement pusher 12 pushes the raw material of the ear loop 4 into the forming plate 11, and the forming plate 11 adjusts the shape of the ear loop 4 to a shape that is easy to weld with the mask body 5.

[0037] The ear loop positioning device 2 is used to position the ear loop 4 after its shape has been adjusted, so that the shape of the ear loop 4 can be maintained and the ear loop 4 can be welded to the mask body 5 in a specific shape. Specifically, the ear loop positioning device 2 is fixedly connected to the fixing base 3 and connected to the forming plate 11, so that the ear loop 4 after its shape has been adjusted in the forming plate 11 can be positioned by the ear loop positioning device 2 cooperating with the forming plate 11.

[0038] When using this ear loop installation mechanism, see Figure 3 As shown, the raw material for the ear loop 4 is conveyed between the forming plate 11 and the engagement push plate 12. Both the forming plate 11 and the engagement push plate 12 rotate and engage during their rotation. Simultaneously, the engagement push plate 12 pushes the raw material for the ear loop 4 into the forming plate 11, ensuring that the shape of the raw material for the ear loop 4 matches the outer contour of the forming plate 11. After the shape of the ear loop 4 in the forming plate 11 is adjusted, the ear loop positioning device 2 positions the adjusted ear loop 4 to prevent it from falling off the forming plate 11 or changing its shape. At the same time, the mask body 5 passes sequentially from the lower side of the forming plate 11 via a corresponding conveying device. As the forming plate 11 rotates, when the ear loop 4 with its shape adjusted passes above the mask body 5, a corresponding welding device welds the ear loop 4 to the mask body 5, completing the ear loop welding. The welding device can be any device suitable for welding the ear loops 4 to the mask body 5. In this application, the welding device is preferably an ultrasonic welding device. In addition, in order to improve the welding accuracy of the ear loops 4 and the mask body 5, a welding point 51 is provided on the mask body 5. When the ear loops 4, whose shape has been adjusted in the forming disc 11, rotate to the welding point 51 of the mask body 5, the ear loops 4 are welded to the welding point 51 by the corresponding welding device, thereby improving the welding accuracy and improving the consistency of mask quality.

[0039] The above process is only for welding the ear loop 4 on one side of the mask. To improve efficiency, a clamping ear loop laying mechanism provided in this application can be set on each side of the conveyed mask body 5 so that the ear loops 4 on both sides of the mask body 5 can be welded simultaneously through two symmetrically arranged clamping ear loop laying mechanisms, so as to complete the welding of the ear loops 4 during the conveying of the mask body 5.

[0040] The clamping ear loop application mechanism provided by this invention uses a wheel-shaped forming disc 11 and a wheel-shaped engagement pusher 12 to adjust the shape of the ear loop 4 during the rotation of the forming disc 11 and the engagement pusher 12. This achieves shape adjustment during the conveying of the ear loop 4, combining the two processes into one. Then, a welding device welds the shaped ear loop 4 to the conveyed mask body 5, completing the ear loop welding during the conveying of the mask body 5. This transforms the ear loop welding process into a continuous operation, improving the efficiency of ear loop welding and eliminating it as a bottleneck restricting mask production speed. Furthermore, the continuous ear loop welding process exerts less impact on the ear loop application mechanism compared to the intermittent process, thereby extending the service life of the clamping ear loop application mechanism.

[0041] Furthermore, the clamping ear loop laying mechanism provided in this application uses a wheel-shaped structure to transport and adjust the shape of the ear loop 4, making the clamping ear loop laying mechanism more compact than the traditional ear loop welding mechanism, thereby facilitating process layout and reducing the floor space of the entire production line.

[0042] To facilitate the pushing of the ear loop 4 to the molding plate 11 during the rotation of the molding plate 11 and the engagement push plate 12, the outer periphery of the molding plate 11 in this application is provided with a first limiting groove 111 distributed in the horizontal direction. The engagement push plate 12 pushes the ear loop 4 into the first limiting groove 111, and the first limiting groove 111 is used to limit the ear loop 4 to prevent the ear loop 4 from falling off or shifting.

[0043] Further, see Figure 4 , Figure 5As shown, the ear loop forming device 1 in this application further includes a first gear 13 and a second gear 14; wherein the first gear 13 is connected to the forming disc 11 via a first connecting shaft, so as to drive the forming disc 11 to rotate; wherein the first connecting shaft is rotatably connected to the fixed base 3, and during operation, the first gear 13 rotates, driving the first connecting shaft to rotate; during the rotation of the first connecting shaft, it in turn drives the forming disc 11 to rotate; preferably, the first gear 13 is located below the fixed base 3, specifically below the clamping ear loop laying mechanism when it is in working state; the first connecting shaft passes through the fixed base 3 and is fixedly connected to the forming disc 11 located above the fixed base 3; wherein there are various ways in which the first connecting shaft and the fixed base 3 are rotatably connected, and preferably, the first connecting shaft and the fixed base 3 are connected via bearings.

[0044] The second gear 14 is connected to the biting push plate 12 via the second connecting shaft, so as to drive the biting push plate 12 to rotate. The second connecting shaft is rotatably connected to the fixed base 3. During operation, the second gear 14 rotates, driving the second connecting shaft to rotate. The rotation of the second connecting shaft, in turn, drives the biting push plate 12 to rotate. Preferably, the second gear 14 is located below the fixed base 3, specifically below the clamping ear loop installation mechanism when it is in working condition. The second connecting shaft passes through the fixed base 3 and is fixedly connected to the biting push plate 12 located above the fixed base 3. There are various ways in which the second connecting shaft and the fixed base 3 are rotatably connected. Preferably, the second connecting shaft and the fixed base 3 are connected by bearings.

[0045] The size of the first gear 13 and the second gear 14 can be determined according to the size of the forming plate 11 and the biting push plate 12, so as to control the rotation of the forming plate 11 and the biting push plate 12 through the first gear 13 and the second gear 14, so that the forming plate 11 and the biting push plate 12 can bite each other while rotating.

[0046] With this design, during operation, power is provided by equipment such as motors, which drive the first gear 13 and the second gear 14 to rotate. During the rotation of the first gear 13 and the second gear 14, the forming disc 11 and the engagement push disc 12 are driven to rotate respectively. During the rotation of the forming disc 11 and the engagement push disc 12, they engage, and while conveying the ear loop 4 located between the forming disc 11 and the engagement push disc 12, the shape of the ear loop 4 is adjusted, so that the ear loop welding process can be carried out continuously, improving the ear loop welding speed and thus improving the mask manufacturing speed.

[0047] Since the clamping ear loop installation mechanism in this application adjusts the shape of the ear loop 4 through the molding disc 11, the outer contour of the molding disc 11 is determined according to the shape of the ear loop 4 to be adjusted. Preferably, the outer periphery of the molding disc 11 is evenly distributed with a plurality of first protrusions 112, and a first recess 113 is formed between adjacent first protrusions 112. The first limiting grooves 111 located on the outer periphery of the molding disc 11 are distributed horizontally on the outer periphery of the first protrusions 112 and the first recess 113. Correspondingly, the outer periphery of the biting push plate 12 is evenly distributed with a plurality of second protrusions 121 that are adapted to the first recess 113, and a second recess 122 that is adapted to the first protrusion 112 is formed between adjacent second protrusions 121.

[0048] The number of the first protrusion 112 and the number of the second protrusion 121 are adapted to the size and speed of the first gear 13 and the second gear 14, respectively, so that by adjusting the speed of the first gear 13 and the second gear 14, the forming disc 11 and the biting push disc 12 can be engaged during rotation.

[0049] During the rotation of the forming plate 11 and the engagement push plate 12, the second protrusion 121 on the engagement push plate 12 enters the first recess 113 on the forming plate 11. The ear loop 4 is pushed into the first limiting groove 111 in the first recess 113 through the second protrusion 121, so that the shape of the ear loop 4 is consistent with the shape of the first recess 113. The ear loop positioning device 2 is then activated to fix the ear loop 4 in the first recess 113, thus fixing the shape of the ear loop 4. As the forming plate 11 and the engagement push plate 12 rotate, the ear loop 4 is distributed along the outer contour of the forming plate 11, thereby adjusting the shape of the ear loop 4. During the rotation, the ear loop 4 with the adjusted shape is conveyed. When the ear loop 4 with the adjusted shape is conveyed to the top of the mask body 5, the ear loop 4 with the shape consistent with the first recess 113 is welded to the mask body 5 by a corresponding welding device.

[0050] Furthermore, in order to facilitate pushing the ear strap 4 through the second protrusion 121, this application preferably provides a second limiting groove 1211 on the outer periphery of the second protrusion 121. The ear strap 4 is limited by the second limiting groove 1211 to prevent the ear strap 4 from falling off the second protrusion 121 during the pushing process.

[0051] By using the first protrusion 112 and the first concave portion 113 on the outer periphery of the forming plate 11, and the second protrusion 121 and the second concave portion 122 on the outer periphery of the biting push plate 12, the shape of the ear strap 4 can be adjusted while the ear strap 4 is being conveyed, thereby making the ear strap welding process a continuous production process and increasing the speed of ear strap welding.

[0052] Furthermore, the ear loop forming device 1 in this application also includes an ear loop cutting device 15; the ear loop cutting device 15 includes a blade 151 and a bottom roller 152; the blade 151 is disposed at the outer end of the first protrusion 112 and the blade 151 is distributed in the vertical direction; the bottom roller 152 is rotatably connected to the fixed base 3 and is located downstream of the biting push plate 12; wherein the downstream of the biting push plate 12 refers to the downstream in terms of the rotation direction of the forming plate 11, that is, during a certain circular motion of the forming plate 11, a certain position on the ear loop 4 located between the forming plate 11 and the biting push plate 12 passes through the biting push plate 12 first and then through the bottom roller 152; the bottom roller 152 is disposed adjacent to the forming plate 11 and abuts against the blade 151.

[0053] During operation of this clamping ear loop installation mechanism, the ear loop 4, located between the ear loop forming disc 11 and the engagement pusher 12, is distributed along the outer contour of the forming disc 11 as the forming disc 11 and the engagement pusher 12 rotate. Specifically, as the forming disc 11 rotates, when a certain first protrusion 112 on the forming disc 11 rotates to the position of the engagement pusher 12, the ear loop 4 is distributed on the outside of the first protrusion 112 under the pushing action of the engagement pusher 12. Since the outer end of the first protrusion 112 is provided with a blade 151 distributed in the vertical direction, the ear loop 4 is located on the blade 151. On the outside of 51; the forming disc 11 continues to rotate. When the first protrusion 112 with ear loops 4 rotates to the position of the bottom roller 152, the bottom roller 152 abuts against the blade 151. Under the squeezing action of the bottom roller 152 and the blade 151, the ear loop 4 located outside the blade 151 is cut off by the blade 151, and the ear loop 4 becomes the same shape as the first concave part 113. When the cut ear loop 4 rotates above the mask body 5, the two broken ends of the ear loop 4 are welded to the two welding points 51 on the same mask body 5 by the welding device, thus realizing the welding process of the ear loop 4.

[0054] The bottom roller 152 can be a fixed structure, that is, the bottom roller 152 does not rotate when the blade 151 is in contact with the bottom roller 152. In order to reduce the resistance during the rotation of the forming disc 11, this application preferably connects the bottom roller 152 to the fixed base 3, and further preferably connects the bottom roller 152 to the fixed base 3 through a bearing. In this application, there is no need to set up a power device to drive the bottom roller 152 to rotate. It is only necessary to be able to follow the blade 151 when it is in contact with the blade 151.

[0055] This application sets up an ear loop cutting device 15 to cut the ear loop 4 after its shape has been adjusted, and then welds the cut ear loop 4 to the mask body 5. This allows the shape of the ear loop 4 to be adjusted and cut during the conveying process of the ear loop 4, which can reduce the cutting process of the welded mask, thereby further improving the ear loop welding speed and thus improving the mask manufacturing speed.

[0056] To facilitate the positioning of the ear loop 4 after shape adjustment, the ear loop positioning device 2 in this application includes a plurality of pressure posts 21 and a fixing wheel 22 disposed above the pressure posts 21; each first protrusion 112 has a first mounting hole on both sides that is adapted to the pressure post 21; the first mounting hole is located at the upper end of the first protrusion 112, and the bottom end of the first mounting hole communicates with the first limiting groove 111; the fixing wheel 22 is fixedly connected to the fixing seat 3 and is used to press the pressure post 21 into the first mounting hole.

[0057] As the forming disc 11 and the engagement pusher 12 rotate, when the ear loop 4 is pushed into the forming disc 11, the fixing wheel 22 squeezes the pressure post 21, causing the pressure post 21 to move downward and enter the first mounting hole. Since the bottom end of the first mounting hole is connected to the first limiting groove 111, the pressure post 21 passes through the first mounting hole and enters the first limiting groove 111, clamping the ear loop 4 located in the first limiting groove 111 to prevent the ear loop 4 from falling off or shifting, thus maintaining the shape of the ear loop 4.

[0058] Furthermore, to facilitate the support and limiting of the pressure column 21, see [reference needed]. Figure 6 , Figure 7 As shown, the ear loop positioning device 2 in this application also includes several mounting plates 23, which are connected above the first protrusion 112; the mounting plate 23 is provided with a second mounting hole that is adapted to the pressure post 21, and the pressure post 21 is disposed in the second mounting hole.

[0059] The fixed wheel 22 presses the pressure column 21, causing the pressure column 21 to pass through the second mounting hole and the first mounting hole in sequence, and enter the first limiting groove 111 to clamp and position the ear strap 4 in the first limiting groove 111.

[0060] Furthermore, the ear loop positioning device 2 in this application also includes a spring 24 connected to the pressure post 21. The spring 24 is sleeved on the outside of the pressure post 21 and is located between the first protrusion 112 and the mounting plate 23.

[0061] After the shape of the ear loop 4 is adjusted, the fixed wheel 22 presses the pressure post 21, causing the pressure post 21 to move downward and clamp the ear loop 4 in the first limiting groove 111. At the same time, since the pressure post 21 is fixedly connected to the spring 24, the downward movement of the pressure post 21 drives the spring 24 to move downward. Since the spring 24 is located between the first protrusion 112 and the mounting plate 23, the spring 24 is compressed and deformed in this area. As the forming disc 11 rotates, when the ear loop 4 clamped by the pressure post 21 rotates to the top of the mask body 5, the fixed wheel 22 releases the pressure on the pressure post 21, the spring 24 returns to its original position, and at the same time, the pressure post 21 bounces up, releasing the clamping of the ear loop 4, so that the ear loop 4 comes out of the first limiting groove 111 and is welded to the mask body 5.

[0062] By setting a spring 24, the pressure column 21 can automatically spring up after the fixed wheel 22 releases its pressure, thereby improving the automation level of the ear loop welding process and increasing production speed.

[0063] Further, see Figure 8 As shown, the bottom side of the fixed wheel 22 in this application is provided with a groove 221 that is adapted to the pressure post 21; the groove 221 has a C-shaped structure.

[0064] Specifically, the bottom side of the fixed wheel 22 refers to the side of the fixed wheel 22 that contacts the support column 21 when the clamping ear loop installation mechanism is in operation. The position of the groove 221 is determined according to the movement trajectory of the support column 21 during the rotation of the forming disc 11. Specifically, since the support column 21 moves in a circular motion with the forming disc 11, i.e., the movement trajectory of the support column 21 is circular, the groove 221 is an arc-shaped structure with the radius of the arc-shaped structure being the same as the radius of the movement trajectory of the support column 21, making the groove 221 form a C-shaped structure. By setting the groove 221, a height difference is formed on the bottom side of the fixed wheel 22. As the forming disc 11 rotates, the support column 21 contacts the position outside the groove 221 on the bottom side of the fixed wheel 22. At this time, the fixed wheel 22 squeezes the support column 21, and the support column 21 moves downward to clamp the ear loop in the first limiting groove 111. Since the support column 21 is located above the forming plate 11 and rotates with the forming plate 11, when the support column 21 enters the groove 221, the fixed wheel 22 no longer squeezes the support column 21. Under the action of the spring 24, the support column 21 is bounced up, releasing the clamping of the ear loop 4. The ear loop 4 is released from the forming plate 11 and welded to the mask body 5 under the action of the welding device. As the forming plate 11 rotates, the support column 21 moves up and down repeatedly under the action of the fixed wheel 22 and the spring 24 to realize the continuous conveying and shaping of the ear loop 4 and realize the continuous operation of the ear loop welding process.

[0065] To reduce the friction between the support column 21 and the fixed wheel 22, this application preferably has a circular head structure for the support column 21.

[0066] Preferably, the fixing wheel 22 is a disc-shaped structure, and more preferably, the fixing wheel 22 is installed concentrically above the forming disc 11. During the rotation of the forming disc 11, the fixing wheel 22 does not rotate. During installation, by adjusting the position of the groove 221 on the bottom side of the fixing wheel 22, after the shape of the ear loop 4 is adjusted during the rotation of the forming disc 11, the fixing wheel 22 presses against the support column 21, causing the support column 21 to clamp the ear loop 4. When the ear loop 4 is conveyed to the top of the mask body 5 and needs to be welded to the mask body 5, the fixing wheel 22 releases the pressure on the support column 21. Under the action of the spring 24, the support column 21 moves upward, and the ear loop 4 disengages from the forming disc 11. As the forming disc 11 rotates, the above process is repeated sequentially, thereby achieving continuous ear loop welding.

[0067] To facilitate the fixing of the fixed wheel 22, the ear loop positioning device 2 in this application also includes a support column 25 and a mounting plate 26, wherein the bottom end of the support column 25 is fixedly connected to the fixed base 3, and the top end of the support column 25 is fixedly connected to the mounting plate 26; the mounting plate 26 is fixedly connected to the fixed wheel 22.

[0068] The shape and size of the support column 25 and the mounting plate 26 can be determined according to the situation of the fixed wheel 22. The fixed wheel 22 and the fixed base 3 are fixedly connected through the support column 25 and the mounting plate 26. The structure is simple and highly reliable. At the same time, by setting the fixed wheel 22 above the forming plate 11, the forming plate 11 can be covered, thereby improving the safety and aesthetics of the clamping ear loop laying mechanism during operation.

[0069] While the disclosure is as stated above, its scope of protection is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of this disclosure, and all such changes and modifications will fall within the protection scope of this invention.

Claims

1. A clamping ear loop installation mechanism, characterized in that, Includes an ear loop forming device (1), an ear loop positioning device (2), and a fixing base (3); wherein: The ear loop forming device (1) includes a forming plate (11) and an engagement push plate (12) disposed adjacent to the forming plate (11). The forming flower plate (11) and the biting push plate (12) are both rotatably connected to the fixed base (3); Both the forming disc (11) and the biting pusher (12) are wheel-shaped structures, and the forming disc (11) and the biting pusher (12) bite each other during rotation; The ear loop positioning device (2) is fixedly connected to the fixed base (3), and the ear loop positioning device (2) is connected to the molded flower plate (11); The ear loop positioning device (2) includes a plurality of pressure posts (21) and a fixing wheel (22) disposed above the pressure posts (21); a plurality of first protrusions (112) are evenly distributed on the outer periphery of the forming disc (11), and each first protrusion (112) has a first mounting hole on both sides that is adapted to the pressure post (21); the fixing wheel (22) is fixedly connected to the fixing seat (3) and is used to press the pressure post (21) into the first mounting hole.

2. The clamping ear loop installation mechanism as described in claim 1, characterized in that, The outer periphery of the shaped flower plate (11) is provided with a first limiting groove (111) distributed in the horizontal direction.

3. The clamping ear loop installation mechanism as described in claim 2, characterized in that, The ear loop forming device (1) further includes a first gear (13) and a second gear (14); the first gear (13) is connected to the forming disc (11) via a first connecting shaft; the first connecting shaft is rotatably connected to the fixed seat (3); the second gear (14) is connected to the biting push plate (12) via a second connecting shaft; the second connecting shaft is rotatably connected to the fixed seat (3).

4. The clamping ear loop installation mechanism as described in claim 2, characterized in that, The outer periphery of the shaped flower plate (11) is evenly distributed with a plurality of the first protrusions (112), and a first recess (113) is formed between adjacent first protrusions (112). The outer periphery of the bite pusher (12) is evenly distributed with a plurality of second protrusions (121) that are adapted to the first concave portion (113), and a second concave portion (122) adapted to the first protrusion (112) is formed between adjacent second protrusions (121).

5. The clamping ear loop installation mechanism as described in claim 4, characterized in that, The ear loop forming device (1) further includes an ear loop cutting device (15); the ear loop cutting device (15) includes a blade (151) and a bottom roller (152); the blade (151) is disposed at the outer end of the first protrusion (112) and the blade (151) is distributed in the vertical direction; the bottom roller (152) is rotatably connected to the fixed seat (3), the bottom roller (152) is located downstream of the biting push plate (12), and the bottom roller (152) abuts against the blade (151).

6. The clamping ear loop installation mechanism as described in claim 4, characterized in that, The first mounting hole is located at the upper end of the first protrusion (112), and the bottom end of the first mounting hole communicates with the first limiting groove (111).

7. The clamping ear loop installation mechanism as described in claim 6, characterized in that, The ear loop positioning device (2) further includes several mounting plates (23), which are connected above the first protrusion (112); the mounting plate (23) is provided with a second mounting hole that is adapted to the pressure post (21), and the pressure post (21) is disposed in the second mounting hole.

8. The clamping ear loop installation mechanism as described in claim 7, characterized in that, The ear loop positioning device (2) also includes a spring (24) connected to the pressure post (21), the spring (24) being sleeved on the outside of the pressure post (21), and the spring (24) being located between the first protrusion (112) and the mounting plate (23).

9. The clamping ear loop installation mechanism as described in claim 8, characterized in that, The bottom side of the fixed wheel (22) is provided with a groove (221) that is compatible with the pressure column (21); the groove (221) has a C-shaped structure.

10. The clamping ear loop installation mechanism as described in claim 6, characterized in that, The ear loop positioning device (2) further includes a support column (25) and a mounting plate (26), wherein the bottom end of the support column (25) is fixedly connected to the fixing seat (3), and the top end is fixedly connected to the mounting plate (26); the mounting plate (26) is fixedly connected to the fixing wheel (22).

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