Adsorption type ear strap laying mechanism

Abstract

The present invention provides an adsorption-type ear band laying mechanism, which relates to the technical field of mask manufacturing, and includes an ear band forming device, an air suction device and a fixing seat, wherein: the ear band forming device includes a forming face plate and an engaging push plate arranged adjacent to the forming face plate; the forming face plate and the engaging push plate are both rotatably connected to the fixing seat; the forming face plate and the engaging push plate are both wheel-shaped structures, and the forming face plate engages with the engaging push plate during rotation; the air suction device is connected to the forming face plate, and is used to generate negative pressure in the forming face plate; the air suction device is fixedly connected to the fixing seat. The adsorption-type ear band laying mechanism provided by the present invention can achieve shape adjustment during the process of conveying the ear band, transform the ear band welding process into a continuous operation process, and improve the efficiency of ear band welding.

Description

Technical Field

[0001] The present invention relates to the technical field of mask manufacturing, and in particular to an adsorption-type ear strap laying mechanism. Background Art

[0002] Masks, especially disposable masks, are essential consumables for medical treatment and dust and virus prevention. During epidemic seasons, disposable masks are still a common item for ordinary citizens when going out.

[0003] At present, the production of disposable masks includes the production process of the mask body and the ear strap welding process. The production process of the mask body is a continuous production process with a very fast production speed, but the ear strap welding process is an intermittent production process with a slow production speed. As a result, the overall production speed of the mask is restricted by the ear strap welding speed, and the production efficiency is low. Summary of the invention

[0004] The technical problem solved by the invention is that the ear strap welding process is slow.

[0005] In order to solve the above problems, the present invention provides an adsorption-type ear strap laying mechanism, comprising an ear strap forming device, an air suction device and a fixing seat, wherein:

[0006] The ear band forming device comprises a forming faceplate and an engaging push plate arranged adjacent to the forming faceplate;

[0007] The molding disc and the engaging push disc are both rotatably connected to the fixing seat;

[0008] The molding disc and the occlusal push disc are both wheel-shaped structures, and the molding disc and the occlusal push disc are engaged during the rotation process;

[0009] The suction device is connected to the molding disc and is used to generate negative pressure in the molding disc;

[0010] The air suction device is fixedly connected to the fixing seat.

[0011] Optionally, adsorption holes are arranged on the outer circumference of the molded disc, and an air suction channel is arranged inside the molded disc, the air suction channel is communicated with the adsorption holes, and the air suction channel is communicated with the air suction port of the air suction device.

[0012] Optionally, the suction device includes an suction valve and an air valve interface, and an arc-shaped suction valve groove is arranged in the suction valve; the bottom end of the suction valve abuts against the molded disc, and the upper end of the suction valve is connected to the air valve interface; the air valve interface is in communication with the suction valve groove.

[0013] Optionally, the air suction device further comprises a support and a mounting plate, wherein the lower end of the support is fixedly connected to the fixing seat, and the upper end of the support is fixedly connected to the mounting plate; and the mounting plate is fixedly connected to the air valve interface.

[0014] Optionally, first limiting grooves distributed in a horizontal direction are arranged on the outer circumference of the molded faceplate, and the adsorption holes are arranged in the first limiting grooves.

[0015] Optionally, the molded flower disc includes an upper molded flower disc and a lower molded flower disc, the upper molded flower disc is provided with an upper air suction channel, and the lower molded flower disc is provided with a lower air suction channel; when the upper molded flower disc is connected to the lower molded flower disc, the upper air suction channel and the lower air suction channel are enclosed to form the air suction channel.

[0016] Optionally, the ear band forming device also 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 seat; the second gear is connected to the engaging push plate via a second connecting shaft; the second connecting shaft is rotatably connected to the fixed seat.

[0017] Optionally, a plurality of first convex portions are evenly distributed on the outer circumference of the molded faceplate, and first concave portions are formed between adjacent first convex portions;

[0018] A plurality of second convex portions matched with the first concave portions are evenly distributed on the outer circumference of the engaging push plate, and second concave portions matched with the first convex portions are formed between adjacent second convex portions.

[0019] Optionally, a second limiting groove is provided at the outer end of the second protrusion.

[0020] Optionally, the ear band forming device also includes an ear band cutting device; the ear band cutting device includes a blade and a bottom roller, the blade is arranged at the outer end of the first protrusion, and the blade is distributed along the vertical direction; the bottom roller is rotatably connected to the fixed seat, the bottom roller is located downstream of the bite push plate, and the bottom roller is abutted against the blade.

[0021] Compared with the prior art, the suction-type ear strap laying mechanism provided by the present invention has the following advantages:

[0022] The adsorption type ear band laying mechanism provided by the present invention adjusts the shape of the ear band during the rotation of the molding disc and the occlusal push disc by cooperating with the wheel-shaped molding disc and the occlusal push disc, and adsorbs the ear band after the shape adjustment by an adsorption device, so as to facilitate positioning of the ear band after the shape adjustment, and realizes the shape adjustment during the conveying process of the ear band, and combines the two processes into one, and then welds the ear band after the shape adjustment with the conveyed mask body by a welding device, so that the ear band welding is completed during the conveying process of the mask body, thereby converting the ear band welding process into a continuous operation process, on the one hand, improving the efficiency of the ear band welding, so that the ear band welding process is no longer a bottleneck restricting the production speed of the mask, and on the other hand, the continuously operated ear band welding process has a smaller impact force on the ear band laying mechanism than the intermittently operated ear band welding process, thereby improving the service life of the clamping type ear band laying mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 The structure of the suction-type ear strap laying mechanism of the present invention is simplified as follows: Figure 1 ;

[0024] Figure 2 for Figure 1 A partial enlarged view of the middle A;

[0025] Figure 3 The structure of the suction-type ear strap laying mechanism of the present invention is simplified as follows: Figure 2 ;

[0026] Figure 4 It is a schematic diagram of the working process of the suction-type ear strap laying mechanism of the present invention;

[0027] Figure 5 A simplified structural diagram of the air intake valve of the present invention;

[0028] Figure 6 It is a simplified structural diagram of the molded faceplate of the present invention;

[0029] Figure 7 The ear band forming device and the fixing seat of the present invention are assembled Figure 1 ;

[0030] Figure 8 The ear band forming device and the fixing seat of the present invention are assembled Figure 2 .

[0031] Description of reference numerals:

[0032] 1-ear band forming device; 11-forming disc; 111-adsorption hole; 112-intake channel; 1121-lower intake channel; 113-first limiting groove; 114-upper forming disc; 115-lower forming disc; 116-first convex portion; 117-first concave portion; 12-occlusal push plate; 121-second convex portion; 122-second concave portion; 123-second limiting groove; 13-first gear; 14-second gear; 15-ear band cutting device; 151-blade; 152-bottom roller; 2-intake device; 21-intake valve; 211-intake valve groove; 22-valve interface; 23-pillar; 24-mounting plate; 3-fixed seat; 4-ear band; 5-mask body; 51-welding point. DETAILED DESCRIPTION

[0033] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, but are not to be construed as limiting the present invention. All other embodiments obtained by ordinary technicians in the field without creative work based on the embodiments of the present invention are within the scope of protection of the present invention.

[0034] In the description of the present invention, it should be understood that the terms "first" and "second" are only used to simplify the description, and should not be understood as indicating or implying relative importance, or implicitly indicating the number of the indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0035] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0036] In order to solve the problem of slow speed of current ear strap welding process, the present invention provides an adsorption type ear strap laying mechanism, see Figure 1 to Figure 3 As shown, the adsorption-type ear band laying mechanism includes an ear band forming device 1, an air suction device 2 and a fixing seat 3, wherein the fixing seat 3 is used to support and fix the ear band forming device 1 and the air suction device 2; the ear band forming device 1 is used to adjust the shape of the ear band 4 so that the adjusted shape of the ear band 4 can be adapted to the mask body 5, thereby further welding the ear band 4 and the mask body 5 to obtain a mask.

[0037] Specifically, the ear band forming device 1 in the present application includes a forming disc 11 and an engaging push disc 12 arranged adjacent to the forming disc 11; the forming disc 11 and the engaging push disc 12 are both rotatably connected to the fixing seat 3; the forming disc 11 and the engaging push disc 12 are both wheel-shaped structures, and during the operation of the adsorption-type ear band laying mechanism, the forming disc 11 and the engaging push disc 12 are both rotated, and the forming disc 11 and the engaging push disc 12 are engaged during the rotation process; the raw material of the ear band 4 is transported between the forming disc 11 and the engaging push disc 12, and as the forming disc 11 and the engaging push disc 12 are engaged during the rotation process, the raw material of the ear band 4 is pushed into the forming disc 11 through the engaging push disc 12, and then the shape of the ear band 4 is adjusted to a shape that is convenient for welding with the mask body 5 through the forming disc 11.

[0038] In order to facilitate the positioning of the ear strap 4 after the shape is adjusted, the suction-type ear strap laying mechanism provided in the present application also includes an air suction device 2 fixedly connected to the fixing seat 3, and the air suction device 2 is connected to the molding disc 11, and is used to generate negative pressure in the molding disc 1. The ear strap 4 after the shape adjustment is adsorbed on the outer periphery of the molding disc 1 through the generated negative pressure, so that the shape of the ear strap 4 can be maintained, and then the ear strap 4 can be welded to the mask body 5 in the adjusted specific shape.

[0039] When using this suction ear strap application mechanism, refer to Figure 4 As shown, first, the raw material of the ear band 4 is conveyed between the molding disc 11 and the bite push disc 12, and the molding disc 11 and the bite push disc 12 are rotated, and the two are engaged during the rotation. While engaging, the bite push disc 12 pushes the raw material of the ear band 4 into the molding disc 11, so that the shape of the raw material of the ear band 4 is consistent with the external contour shape of the molding disc 11; after the shape of the ear band 4 in the molding disc 11 is adjusted, a negative pressure is generated by the suction device 2, and the ear band 4 is adsorbed by the negative pressure to achieve the positioning of the ear band 4, so as to prevent the ear band 4 from falling off or shifting from the molding disc 11; at the same time, the mask body 5 passes through the lower side of the molding disc 11 through the corresponding conveying device; as the molding disc 11 rotates, when the shape-adjusted ear band 4 adsorbed on the outside of the molding disc 1 passes above the mask body 5, the ear band 4 and the mask body 5 are welded by the corresponding welding device, and the ear band welding process can be completed. The welding device can be any device suitable for welding the ear strap 4 and the mask body 5. The present application preferably uses an ultrasonic welding device. In addition, in order to improve the accuracy of welding the ear strap 4 and the mask body 5, a welding point 51 is provided on the mask body 5. When the ear strap 4 whose shape is adjusted in the molding faceplate 11 is rotated to the welding point 51 of the mask body 5, the ear strap 4 is welded to the welding point 51 through a corresponding welding device, thereby improving the welding accuracy and the consistency of the mask quality.

[0040] The above process is only the process of welding the ear strap 4 on one side of the mask; in order to improve efficiency, a set of adsorption ear strap laying mechanisms provided by the present application can be arranged on both sides of the conveyed mask body 5, so that the ear straps 4 on both sides of the mask body 5 can be welded at the same time through two sets of symmetrically arranged adsorption ear strap laying mechanisms, thereby completing the welding of the ear straps 4 during the conveying process of the mask body 5.

[0041] The adsorption type ear band laying mechanism provided by the present invention cooperates with the wheel-shaped molding disc 11 and the wheel-shaped bite push disc 12 to adjust the shape of the ear band 4 during the rotation of the molding disc 11 and the bite push disc 12, and adsorbs the ear band 4 after the shape adjustment through the adsorption device 2, so as to facilitate the positioning of the ear band 4 after the shape adjustment, and completes the shape adjustment during the conveying process of the ear band 4, and combines the two processes into one, and then welds the ear band 4 after the shape adjustment with the conveyed mask body 5 through the welding device, so that the ear band welding is completed during the conveying process of the mask body 5, thereby converting the ear band welding process into a continuous operation process, on the one hand, improving the efficiency of the ear band welding, so that the ear band welding process is no longer a bottleneck restricting the production speed of the mask, and on the other hand, the continuously operated ear band welding process has a smaller impact force on the ear band laying mechanism than the intermittently operated ear band welding process, thereby improving the service life of the clamping type ear band laying mechanism.

[0042] In addition, the suction-type ear band laying mechanism provided in the present application uses a wheel-shaped structure to transport and adjust the shape of the ear band 4, so that the clamping-type ear band laying mechanism is more compact than the traditional ear band welding mechanism, thereby facilitating process layout and reducing the footprint of the entire production line.

[0043] To facilitate the adsorption of the ear strap 4, an adsorption hole 111 is provided on the outer periphery of the molded disc 11 in the present application, and an air suction channel 112 is provided inside the molded disc 11. The air suction channel 112 is communicated with the adsorption hole 111, and the air suction channel 112 is communicated with the air suction port of the air suction device 2.

[0044] During the operation of the suction device 2, the air in the molded disc 11 is sucked away through the suction channel 112 and the suction port of the suction device 2, and a negative pressure is generated in the molding device 11, so that the pressure in the adsorption hole 111 is lower than the pressure outside the adsorption hole 111. Under the action of the internal and external pressure difference, the ear band 4 is adsorbed to the outside of the molded disc 11, thereby realizing the positioning of the ear band 4.

[0045] Specifically, the air suction device 2 in the present application includes an air suction valve 21 and an air valve interface 22, see Figure 5As shown, an arc-shaped suction valve groove 211 is provided in the suction valve 21 ; the bottom end of the suction valve 21 abuts against the molded faceplate 11 , and the upper end of the suction valve 21 is connected to the air valve interface 22 ; the air valve interface 22 is in communication with the suction valve groove 211 .

[0046] The present application preferably sets the suction valve 21 concentrically with the forming disc 11; during the operation of the suction device 2, the valve interface 22 is connected to the vacuum equipment, and under the action of the vacuum equipment, the air flow is successively sucked away by the vacuum equipment through the adsorption hole 111, the suction channel 112 inside the forming disc 11, the suction valve groove 211, and the valve interface 22, and the ear strap 4 is adsorbed on the outside of the forming disc 11, so that it is controlled and will not fall off.

[0047] In order to improve the accuracy of controlling the ear band 4, the suction valve groove 211 is set to an arc shape in the present application, so that the suction device 2 can only adsorb the ear band 4 that rotates to a certain range with the molded disc 11; specifically, after the suction valve 21 is installed, since the suction valve groove 211 on the suction valve 21 is an arc structure, a part of the suction channel 112 in the molded disc 11 is connected to the suction valve groove 211, and the other part of the suction channel 112 is not connected to the suction valve groove 211; during the operation of the suction device 2, there is airflow passing through the suction channel 112 in the part that is connected to the suction valve groove 211, and the adsorption hole 111 connected to the suction channel 112 with airflow passing can adsorb the ear band 4; on the contrary, there is no airflow passing through the suction channel 112 in the part that is not connected to the suction valve groove 211, and the adsorption hole 111 connected to the suction channel 112 without airflow passing cannot adsorb the ear band 4.

[0048] The angle range of the arc structure of the suction valve groove 211 can be determined according to the adsorption demand for the ear band 4; the adsorption angle of the ear band 4 can be adjusted by adjusting the installation angle of the suction valve groove 211; since the suction valve 21 does not rotate with the molding disc 11, the present application preferably adjusts the angle of the suction valve groove 211 so that after the ear band molding device 1 completes the shape adjustment of the ear band 4, the ear band 4 with the completed shape adjustment rotates with the molding disc 11 to the area that can communicate with the suction valve groove 211, so as to facilitate the suction device 2 to adsorb the ear band 4 to the outside of the molding disc 2; with the rotation of the molding disc 11, when the adsorbed ear band 4 rotates to the top of the mask body 5 and needs to be welded with the mask body 5, the area is no longer communicated with the suction valve groove 211, so that the suction device 2 no longer adsorbs the ear band 4, and the ear band 4 falls off from the outside of the molding disc 11 and is welded with the mask body 5.

[0049] By providing an arc-shaped suction valve groove 211 in the suction valve 21 to control the suction angle of the ear strap 4, the automation degree of laying the ear strap 4 is improved, thereby increasing the production speed.

[0050] To facilitate the fixation of the air intake device 2, the air intake device 2 in the present application also includes a support 23 and a mounting plate 24, the lower end of the support 23 is fixedly connected to the fixing seat 3, and the upper end of the support 23 is fixedly connected to the mounting plate 24; the mounting plate 24 is fixedly connected to the air valve interface 22.

[0051] The shape and size of the support 23 and the mounting plate 24 can be determined according to the situation of the air valve interface 22; the air valve interface 22 and the fixing seat 3 are fixedly connected by the support 23 and the mounting plate 24, which has a simple structure and high reliability.

[0052] In order to facilitate pushing the ear strap 4 to the molding disc 11 during the rotation of the molding disc 11 and the engaging push disc 12, a first limiting groove 113 distributed in the horizontal direction is provided on the outer periphery of the molding disc 11 in the present application, and the ear strap 4 is pushed into the first limiting groove 113 by the engaging push disc 12, and the ear strap 4 is limited by the first limiting groove 113 to prevent the ear strap 4 from falling off or shifting.

[0053] Furthermore, the adsorption hole 111 is arranged in the first limiting groove 113, so that after the engaging push plate 12 pushes the ear band 4 into the first limiting groove 113, the ear band 4 is adsorbed through the adsorption hole 111 to prevent the ear band 4 from falling off.

[0054] Since the molded faceplate 11 provided in the present application is provided with an air suction channel 1121, in order to reduce the difficulty of manufacturing the molded faceplate 11, see Figure 6 As shown, the molded flower disc 11 in the present application includes an upper molded flower disc 114 and a lower molded flower disc 115. The upper molded flower disc 114 is provided with an upper air suction channel (not shown in the figure), and the lower molded flower disc 115 is provided with a lower air suction channel 1121; when the upper molded flower disc 114 is connected to the lower molded flower disc 115, the upper air suction channel and the lower air suction channel 1121 are enclosed to form the air suction channel 112.

[0055] The connection between the upper molded disc 114 and the lower molded disc 115 can be welding, connection through fasteners, snap connection, etc. In the present application, the upper molded disc 114 and the lower molded disc 115 are preferably connected through fasteners.

[0056] The forming faceplate 11 is configured to include an upper forming faceplate 114 and a lower forming faceplate 115, so as to facilitate processing of the air suction channel 112 and the adsorption holes 111 during the manufacturing process, thereby reducing the manufacturing difficulty and improving the manufacturing efficiency.

[0057] For further information, see Figure 7 , Figure 8As shown, the ear band forming device 1 in the present application also includes a first gear 13 and a second gear 14; wherein the first gear 13 is connected to the forming disc 11 through a first connecting shaft, so as to drive the forming disc 11 to rotate through the first gear 13; wherein the first connecting shaft is rotationally connected to the fixed seat 3, and during operation, the first gear 13 rotates to drive the first connecting shaft to rotate; during the rotation of the first connecting shaft, the forming disc 11 is driven to rotate; the present application preferably has the first gear 13 located below the fixed seat 3, and the below of the fixed seat 3 specifically refers to the below when the adsorption-type ear band laying mechanism is in a working state; the first connecting shaft passes through the fixed seat 3 and is fixedly connected to the forming disc 11 located above the fixed seat 3; wherein there are multiple ways of rotationally connecting the first connecting shaft to the fixed seat 3, and the present application preferably has the first connecting shaft connected to the fixed seat 3 through a bearing.

[0058] The second gear 14 is connected to the engaging push plate 12 through the second connecting shaft, so as to drive the engaging push plate 12 to rotate through the second gear 14; wherein the second connecting shaft is rotationally connected to the fixed seat 3, and during operation, the second gear 14 rotates, driving the second connecting shaft to rotate; during the rotation of the second connecting shaft, the engaging push plate 12 is driven to rotate; the present application preferably prefers that the second gear 14 is located below the fixed seat 3, and the below of the fixed seat 3 specifically refers to the below when the suction-type ear band laying mechanism is in a working state; the second connecting shaft passes through the fixed seat 3, and is fixedly connected to the engaging push plate 12 located above the fixed seat 3; wherein there are multiple ways of rotationally connecting the second connecting shaft to the fixed seat 3, and the present application preferably prefers that the second connecting shaft is connected to the fixed seat 3 through a bearing.

[0059] The sizes of the first gear 13 and the second gear 14 can be determined according to the sizes of the forming disc 11 and the engaging push disc 12, so that the rotation of the forming disc 11 and the engaging push disc 12 can be controlled by the first gear 13 and the second gear 14, so that the forming disc 11 and the engaging push disc 12 can be engaged with each other while rotating.

[0060] With such a design, during operation, power is provided by a motor and other equipment to respectively 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 molding disc 11 and the engaging push disc 12 are respectively driven to rotate. During the rotation of the molding disc 11 and the engaging push disc 12, the molding disc 11 engages with the engaging push disc 12. While the ear band 4 between the molding disc 11 and the engaging push disc 12 is transported, the shape of the ear band 4 is adjusted, so that the ear band welding process can be carried out continuously, thereby increasing the ear band welding speed and further increasing the mask manufacturing speed.

[0061] Since the suction-type ear strap laying mechanism in the present application adjusts the shape of the ear strap 4 through the molded disc 11, the outer contour of the molded disc 11 is determined according to the shape of the ear strap 4 to be adjusted; the present application preferably has a plurality of first protrusions 116 evenly distributed on the outer periphery of the molded disc 11, and a first recess 117 is formed between adjacent first protrusions 116; the first limiting grooves 113 located on the outer periphery of the molded disc 11 are horizontally distributed on the outer peripheries of the first protrusions 116 and the first recesses 117; correspondingly, a plurality of second protrusions 121 that are matched with the first recesses 117 are evenly distributed on the outer periphery of the occlusal push disc 12, and a second recess 122 that is matched with the first protrusion 116 is formed between adjacent second protrusions 121.

[0062] The number of the first protrusions 116 and the number of the second protrusions 121 are respectively adapted to the size and rotation speed of the first gear 13 and the second gear 14, so that the forming disc 11 and the engaging push disc 12 can be engaged with each other during rotation by adjusting the rotation speed of the first gear 13 and the second gear 14.

[0063] During the rotation of the molding disc 11 and the occlusal push disc 12, the second convex portion 121 on the occlusal push disc 12 enters the first concave portion 117 on the molding disc 11, and the ear band 4 is pushed to the first limiting groove 113 at the first concave portion 117 through the second convex portion 121, so that the shape of the ear band 4 is consistent with the shape of the first concave portion 117, and the ear band 4 is fixed in the first concave portion 117 through the action of the suction device 2, so that the shape of the ear band 4 is fixed; as the molding disc 11 and the occlusal push disc 12 rotate, the ear band 4 is distributed along the outer contour of the molding disc 11, so that the shape of the ear band 4 is adjusted, and the ear band 4 with the adjusted shape is transported during the rotation process, and when the ear band 4 with the adjusted shape is transported to the top of the mask body 5, the ear band 4 with the shape consistent with the first concave portion 117 is welded to the mask body 5 through the corresponding welding device.

[0064] Furthermore, in order to facilitate pushing the ear band 4 through the second protrusion 121, the present application preferably provides a second limiting groove 123 on the outer periphery of the second protrusion 121, and the ear band 4 is limited by the second limiting groove 123 to prevent the ear band 4 from falling off the second protrusion 121 during the pushing process.

[0065] By cooperating with the first protrusion 116 and the first recess 117 arranged on the outer periphery of the forming disc 11 and the second protrusion 121 and the second recess 122 arranged on the outer periphery of the engaging push disc 12, the shape of the ear band 4 can be adjusted while the ear band 4 is being transported, thereby making the ear band welding process a continuous production process and improving the speed of the ear band welding.

[0066] Furthermore, the ear band forming device 1 in the present application also includes an ear band cutting device 15; the ear band cutting device 15 includes a blade 151 and a bottom roller 152; the blade 151 is arranged at the outer end of the first protrusion 116, and the blade 151 is distributed in the vertical direction; the bottom roller 152 is rotatably connected to the fixed seat 3, and the bottom roller 152 is located downstream of the bite push plate 12; wherein the downstream of the bite push plate 12 refers to the downstream in terms of the rotation direction of the forming disc 11, that is, when the forming disc 11 is performing a certain circular motion, a certain position on the ear band 4 between the forming disc 11 and the bite push plate 12 first passes through the bite push plate 12, and then passes through the bottom roller 152; the bottom roller 152 is arranged adjacent to the forming disc 11, and the bottom roller 152 abuts against the blade 151.

[0067] During the operation of the adsorption-type ear strap laying mechanism, the ear strap 4 located between the ear strap forming disc 11 and the bite push disc 12 is distributed along the outer contour of the forming disc 11 as the forming disc 11 and the bite push disc 12 rotate; specifically, as the forming disc 11 rotates, when a first protrusion 116 on the forming disc 11 rotates to the position where the bite push disc 12 is located, under the pushing action of the bite push disc 12, the ear strap 4 is distributed on the outer side of the first protrusion 116; since the outer end of the first protrusion 116 is provided with a blade 151 distributed in the vertical direction, the ear strap 4 is located on the blade 151. 51; the molding disc 11 continues to rotate, and when the first convex portion 116 with the ear band 4 is rotated to the position of the bottom roller 152, the bottom roller 152 abuts against the blade 151, and under the squeezing action of the bottom roller 152 and the blade 151, the ear band 4 located on the outside of the blade 151 is cut off by the blade 151, and the ear band 4 becomes a shape consistent with the first concave portion 117; when the cut ear band 4 is rotated to the top of the mask body 5, the two broken ends of the ear band 4 are respectively welded to the two welding points 51 on the same mask body 5 by the welding device, thereby realizing the welding process of the ear band 4.

[0068] The bottom roller 152 can be a fixed structure, that is, when the blade 151 is in contact with the bottom roller 152, the bottom roller 152 does not rotate; in order to reduce the resistance during the rotation of the forming disc 11, the present application preferably has the bottom roller 152 rotatably connected to the fixed seat 3, and further preferably has the bottom roller 152 rotatably connected to the fixed seat 3 via a bearing; in the present application, there is no need to set up a power device to drive the bottom roller 152 to rotate, and it only needs to be able to follow the drive of the blade 151 when it is in contact with the blade 151.

[0069] The present application sets an ear band cutting device 15 to cut the ear band 4 after the shape adjustment is completed, and then welds the cut ear band 4 to the mask body 5, so that the shape of the ear band 4 can be adjusted and sheared during the transportation of the ear band 4, which can reduce the process of shearing the welded mask, thereby further improving the speed of ear band welding, and then improving the manufacturing speed of the mask.

[0070] Although the disclosure is disclosed as above, the protection scope of the disclosure is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the disclosure, and these changes and modifications will fall within the protection scope of the present invention.

Claims

1. An adsorption-type ear strap laying mechanism, characterized in that: It comprises an ear band forming device (1), an air suction device (2) and a fixing seat (3), wherein: The ear band molding device (1) comprises a molding faceplate (11) and an engaging push plate (12) arranged adjacent to the molding faceplate (11); The molding disc (11) and the engaging push disc (12) are both rotatably connected to the fixing seat (3); The molding disc (11) and the occluding push disc (12) are both wheel-shaped structures, and the molding disc (11) and the occluding push disc (12) occlude during rotation; The air suction device (2) is connected to the molded disc (11) and is used to generate negative pressure in the molded disc (11); The air suction device (2) is fixedly connected to the fixing seat (3); The outer periphery of the molded disc (11) is provided with a suction hole (111), and the molded disc (11) is provided with an air suction channel (112), the air suction channel (112) is communicated with the suction hole (111), and the air suction channel (112) is communicated with the air suction port of the air suction device (2); The air suction device (2) comprises an air suction valve (21) and an air valve interface (22); an arc-shaped air suction valve groove (211) is provided in the air suction valve (21); the bottom end of the air suction valve (21) abuts against the molded faceplate (11), and the upper end of the air suction valve (21) is connected to the air valve interface (22); the air valve interface (22) is in communication with the air suction valve groove (211); The air suction device (2) further comprises a support (23) and a mounting plate (24); the lower end of the support (23) is fixedly connected to the fixing seat (3), and the upper end of the support (23) is fixedly connected to the mounting plate (24); the mounting plate (24) is fixedly connected to the air valve interface (22); The outer circumference of the molded faceplate (11) is provided with first limiting grooves (113) distributed in a horizontal direction, and the adsorption holes (111) are arranged in the first limiting grooves (113).

2. The suction-type ear strap laying mechanism according to claim 1, characterized in that: The molded flower disc (11) comprises an upper molded flower disc (114) and a lower molded flower disc (115); an upper air suction channel is provided in the upper molded flower disc (114), and a lower air suction channel (1121) is provided in the lower molded flower disc (115); when the upper molded flower disc (114) and the lower molded flower disc (115) are connected, the upper air suction channel and the lower air suction channel (1121) enclose the air suction channel (112).

3. The suction-type ear strap laying mechanism according to any one of claims 1 to 2, characterized in that: The ear band forming device (1) further comprises a first gear (13) and a second gear (14); the first gear (13) is connected to the forming faceplate (11) via a first connecting shaft; the first connecting shaft is rotationally connected to the fixing seat (3); the second gear (14) is connected to the engaging push plate (12) via a second connecting shaft; the second connecting shaft is rotationally connected to the fixing seat (3).

4. The suction-type ear strap laying mechanism according to any one of claims 1 to 2, characterized in that: A plurality of first convex portions (116) are evenly distributed on the outer circumference of the molded faceplate (11), and first concave portions (117) are formed between adjacent first convex portions (116); A plurality of second protrusions (121) matched with the first recesses (117) are evenly distributed on the outer circumference of the engaging push plate (12), and second recesses (122) matched with the first protrusions (116) are formed between adjacent second protrusions (121).

5. The suction-type ear strap laying mechanism according to claim 4, characterized in that: The outer end of the second protrusion (121) is provided with a second limiting groove (123).

6. The suction-type ear strap laying mechanism according to claim 4, characterized in that: The ear band forming device (1) further comprises an ear band cutting device (15); the ear band cutting device (15) comprises a blade (151) and a bottom roller (152); the blade (151) is arranged at the outer end of the first convex portion (116), and the blade (151) is distributed in a vertical direction; the bottom roller (152) is rotatably connected to the fixed seat (3), the bottom roller (152) is located downstream of the engaging push plate (12), and the bottom roller (152) is in contact with the blade (151).

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