Ear strap continuous welding machine

Abstract

The invention belongs to the technical field of mask production equipment, and in particular relates to an ear band continuous welding machine, comprising a first bracket, a first feeding mechanism, a feeding mechanism, a second feeding mechanism, a welding assembly, and a conveying mechanism; the first feeding mechanism is arranged at the top of the first bracket for receiving incoming ear band materials; the feeding mechanism is arranged below the first feeding mechanism for conveying ear band lines, and the feeding mechanism comprises a rotating frame, a plurality of elastic ear band mechanisms and a plurality of pressing and shearing welding mechanisms; each elastic ear band mechanism and each pressing and shearing welding mechanism are alternately arranged on the rotating frame, and the rotating frame is rotatably connected to the first bracket; the second feeding mechanism is arranged on the side of the rotating frame for receiving incoming mask body materials; the welding assembly is arranged below the rotating frame for welding the ear band lines to the mask body; the conveying mechanism is arranged between the rotating frame and the welding assembly for conveying finished products, and the elastic ear band mechanism and the pressing and shearing welding mechanism arranged in the equipment greatly improve the working efficiency of the entire equipment.

Description

Technical Field

[0001] The invention belongs to the technical field of mask production equipment, and in particular relates to an ear strap continuous welding machine. Background Art

[0002] A mask is a sanitary product, generally refers to a device worn on the mouth and nose to filter the air entering the mouth and nose, so as to block harmful gases, odors, and droplets from entering and exiting the wearer's mouth and nose. It is made of gauze or paper. The mask has a certain filtering effect on the air entering the lungs. When respiratory infectious diseases are prevalent or when working in an environment polluted by dust, wearing a mask is very effective.

[0003] The mask includes a mask body and ear straps, and the ear straps are fixed on the mask body. The function of the ear straps is to fix the mask body on the user's face to achieve the effect of filtering air. The existing ultrasonic mask ear strap welding machine includes an equipment table, a frame arranged on the equipment table, a winding mechanism arranged on the frame, a wire preparation mechanism for preparing wires for the wire moving mechanism, a loading platform and a plurality of ultrasonic welding devices arranged above the loading platform. By providing a winding mechanism and a wire preparation mechanism, the winding action and the wire preparation action are completed separately, thereby ensuring the stability of welding, thereby realizing the automation of mask ear strap welding.

[0004] Although this ear strap welding machine improves production accuracy to a certain extent, the composition of the mechanism is relatively complex, which is not conducive to improving production efficiency. Summary of the invention

[0005] The purpose of the present invention is to provide an ear strap continuous welding machine, aiming to solve the technical problem that the ear strap welding machine in the prior art has a relatively complex composition, resulting in relatively low production efficiency.

[0006] To achieve the above-mentioned purpose, an embodiment of the present invention provides an ear band continuous welding machine, comprising a first bracket, a first feeding mechanism, a feeding mechanism, a second feeding mechanism, a welding assembly, and a conveying mechanism; the first feeding mechanism is arranged at the top of the first bracket for receiving the incoming ear band; the feeding mechanism is arranged below the first feeding mechanism for conveying the ear band line, and the feeding mechanism comprises a rotating frame, a plurality of elastic ear band mechanisms and a plurality of pressing and shearing welding mechanisms; each of the elastic ear band mechanisms and each of the pressing and shearing welding mechanisms are alternately arranged on the rotating frame, and the rotating frame is rotatably connected to the first bracket; the second feeding mechanism is arranged on the side of the rotating frame for receiving the incoming material of the mask body; the welding assembly is arranged below the rotating frame for welding the ear band line to the mask body; the conveying mechanism is arranged between the rotating frame and the welding assembly for conveying the finished product.

[0007] The above one or more technical solutions in the ear band continuous welding machine provided by the embodiment of the present invention have at least one of the following technical effects: when the ear band continuous welding machine of the present invention is working, first, the ear band line is passed through the feeding place of the first feeding mechanism, and then the ear band line is transmitted to the feeding place of the feeding mechanism through the first feeding mechanism. At this time, the feeding mechanism receives the ear band line and transmits the ear band line to the top of the welding assembly to wait for welding. When the mask body entering from the second feeding mechanism comes to the top of the welding assembly, the ear band line conveyed by the feeding mechanism can just overlap with the mask body conveyed by the second feeding mechanism. At this time, the welding assembly is The ear strap line and the mask body are welded, and the finished product after welding leaves the first bracket driven by the conveying mechanism. The feeding mechanism of the device can adjust the length of the ear strap line received by the first feeding mechanism and press and shear the ear strap line, eliminating the multiple complicated workstations of the traditional ear strap welding machine, making the composition structure of the whole device more reasonable and simple, which is conducive to realizing a high degree of automation in the overall process of producing masks. In addition, the elastic ear strap mechanism and the pressing and shearing welding mechanism arranged in the equipment make the structure of the whole equipment simpler and easier to operate, thereby greatly improving the work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0009] Figure 1 A schematic structural diagram of an ear strap continuous welding machine provided in an embodiment of the present invention.

[0010] Figure 2 Another structural schematic diagram of the ear band continuous welding machine provided in an embodiment of the present invention.

[0011] Figure 3 A schematic structural diagram of a feeding mechanism of an ear strap continuous welding machine provided in an embodiment of the present invention.

[0012] Figure 4 A schematic structural diagram of an elastic ear strap mechanism of an ear strap continuous welding machine provided in an embodiment of the present invention.

[0013] Figure 5 A schematic structural diagram of the pressing and shearing welding mechanism of the ear strap continuous welding machine provided in an embodiment of the present invention.

[0014] Figure 6 A schematic structural diagram of a clamping mechanism of an ear strap continuous welding machine provided in an embodiment of the present invention.

[0015] Figure 7 A schematic structural diagram of a shearing mechanism of an ear strap continuous welding machine provided in an embodiment of the present invention.

[0016] Figure 8 A schematic structural diagram of a welding mechanism of an ear strap continuous welding machine provided in an embodiment of the present invention.

[0017] Among them, the reference numerals in the figure are:

[0018] 10—first bracket 20—first feeding mechanism 21—winding mechanism

[0019] 22 - first driving mechanism 23 - belt feeding mechanism 24 - induction mechanism

[0020] 25 - adjustment mechanism 30 - feeding mechanism 31 - rotating frame

[0021] 32 - connecting shaft 33 - cam seat 34 - first cam

[0022] 35 - second cam 36 - third cam 40 - elastic ear strap mechanism

[0023] 50—pressing, shearing and welding mechanism 60—second feeding mechanism 61—pressing roller mechanism

[0024] 62 - second driving mechanism 70 - welding assembly 80 - conveying mechanism

[0025] 221—motor 222—reduction box 231—tape feeder

[0026] 232 - third roller 241 - sensor 242 - fourth roller

[0027] 251—Guide rail 252—Adjusting slider 253—Robotic arm

[0028] 321 - pulley 322 - belt 331 - raised part

[0029] 410—second bracket 411—second connecting column 412—avoidance groove

[0030] 413 - fifth threaded hole 420 - guide assembly 421 - frame

[0031] 422—Bearing 423—Connecting shaft 424—Circlip

[0032] 425—first connecting column 430—lifting assembly 431—lifting rod

[0033] 432 - fixed block 441 - spring 450 - receiving chamber

[0034] 510—third bracket 511—sixth through hole 520—pressing mechanism

[0035] 521 - first connecting assembly 522 - lifting assembly 523 - pressing arm

[0036] 524—third connecting column 525—fourth connecting column 530—shear mechanism

[0037] 531 - second connecting component 532 - blade 533 - fifth connecting column

[0038] 534—fixed shaft 540—welding mechanism 541—third connecting assembly

[0039] 542 - welding arm 543 - sixth connecting column 544 - seventh connecting column

[0040] 551 - first spring 552 - second spring 553 - third spring

[0041] 554—fourth spring 555—fifth spring 611—first roller

[0042] 612—second roller 621—first roller 622—second roller

[0043] 4211—installation cavity 4212—first via hole 4213—second via hole

[0044] 4214—third through hole 4215—fourth threaded hole 4251—first threaded hole

[0045] 4321—Second threaded hole 4322—Third threaded hole 5211—First frame

[0046] 5212—first bearing 5213—first connecting shaft 5231—fourth through hole

[0047] 5311—Second frame 5312—Second bearing 5313—Second connecting shaft

[0048] 5321—Connecting section 5322—Cut section 5411—Third frame

[0049] 5412—third bearing 5413—third connecting shaft 6111—first gear

[0050] 6121—second gear 6122—sprocket 52111—first installation cavity

[0051] 52112—fifth through hole 53111—second installation cavity 54111—third installation cavity

[0052] 54112—seventh via hole 54113—eighth via hole. DETAILED DESCRIPTION

[0053] Embodiments of the present invention are described in detail below, examples of which 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 embodiments of the present invention, and should not be construed as limiting the present invention.

[0054] In the description of the embodiments of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0055] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present invention, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined. In the embodiments of the present invention, unless otherwise clearly specified and defined, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, or a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected, or it can be indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present invention can be understood according to the specific circumstances.

[0056] In one embodiment of the present invention, Figures 1-2As shown, an ear band continuous welding machine is provided, comprising a first bracket 10, a first feeding mechanism 20, a feeding mechanism 30, a second feeding mechanism 60, a welding assembly 70, and a conveying mechanism 80; the first feeding mechanism 20 is arranged at the top of the first bracket 10 for receiving the incoming ear band; the feeding mechanism 30 is arranged below the first feeding mechanism 20 for conveying the ear band line, and the feeding mechanism 30 comprises a rotating frame 31, a plurality of elastic ear band mechanisms 40 and a plurality of pressing and shearing welding mechanisms 50; each of the elastic ear band mechanisms 40 and each of the pressing and shearing welding mechanisms 50 are alternately arranged on the rotating frame 31, and the rotating frame 31 is rotatably connected to the first bracket 10; the second feeding mechanism 60 is arranged beside the rotating frame 31 for receiving the incoming material of the mask body; the welding assembly 70 is arranged below the rotating frame 31 for welding the ear band line to the mask body; the conveying mechanism 80 is arranged between the rotating frame 31 and the welding assembly 70 for conveying the finished product.

[0057] Specifically, when the ear strap continuous welding machine of the present invention is working, first, the ear strap wire is passed through the feeding position of the first feeding mechanism 20, and then the ear strap wire is transmitted to the feeding mechanism 30 through the first feeding mechanism 20. At the feeding place, the feeding mechanism 30 receives the ear band line and transmits the ear band line to the top of the welding assembly 70 to wait for welding. When the mask body entering from the second feeding mechanism 60 comes to the top of the welding assembly 70, the ear band line conveyed by the feeding mechanism 30 can just overlap with the mask body conveyed by the second feeding mechanism 60. At this time, the welding assembly 70 welds the ear band line and the mask body, and the finished product after welding leaves the first bracket 10 driven by the conveying mechanism 80. The feeding mechanism 30 of the device can adjust the length of the ear band line received by the first feeding mechanism 20 and press and shear the ear band line, eliminating multiple complicated workstations of the traditional ear band welding machine, making the composition structure of the entire device more reasonable and simple, which is conducive to achieving a high degree of automation in the overall process of producing masks. In addition, the elastic ear band mechanism 40 and the pressing and shearing welding mechanism 50 provided in the device make the structure of the entire device simpler and easier to operate, thereby greatly improving the work efficiency.

[0058] In another embodiment of the present invention, Figures 1-2As shown, the first feeding mechanism 20 includes a winding mechanism 21, a first driving mechanism 22 and a tape feeding mechanism 23; the winding mechanism 21, the first driving mechanism 22 and the tape feeding mechanism 23 are all fixedly connected to the top of the first bracket 10, the winding mechanism 21 and the tape feeding mechanism 23 are all fixedly connected to the top of the first bracket 10, the winding mechanism 21 and the tape feeding mechanism 23 are adjacently arranged, and the output end of the winding mechanism 21 and the input end of the tape feeding mechanism 23 are on the same straight line, and the output end of the first driving mechanism 22 is connected to the input end of the winding mechanism 21. Specifically, the winding mechanism 21 and the tape feeding mechanism 23 are both arranged on the top surface of the first bracket 10, and the output end of the winding mechanism 21 and the input end of the tape feeding mechanism 23 are on the same straight line, that is, when the ear band wire passes through the winding mechanism 21, the first roller 621 and the second roller 622 on the winding mechanism 21 clamp the ear band wire and transmit it, and the ear band wire is transmitted via the first roller 621 and the second roller 622. The output ear band line can be just overlapped on the tape feeding frame 231 provided in the tape feeding mechanism 23, and the tape feeding frame 231 is connected to the third roller 232, so that the ear band line output by the first roller 621 and the second roller 622 can be overlapped on the third roller 232 without bending. Such an arrangement is beneficial to the wire pulling arrangement of the overall device, so that the length of the ear band line can be guaranteed when welding the ear band line, which is beneficial to improving the accuracy of the overall device. The first driving mechanism 22 provided in the present device is composed of a motor 221 and a reduction box 222. Such an arrangement can adjust the speed of entry of the ear band line by controlling the rotation speed of the motor 221.

[0059] In another embodiment of the present invention, Figures 1-2As shown, the first feeding mechanism 20 also includes a sensing mechanism 24 and an adjusting mechanism 25, both of which are fixedly connected to the top of the first bracket 10, the sensing mechanism 24 is arranged between the winding mechanism 21 and the belt feeding mechanism 23, and the adjusting mechanism 25 is arranged below the belt feeding mechanism 23. Specifically, when the ear band wire passes through the first roller 621 and the second roller 622 provided on the winding mechanism 21, a sensing mechanism 24 is provided between the winding mechanism 21 and the tape feeding mechanism 23, and the sensing mechanism 24 is provided with a sensor 241 and a fourth roller 242, and the ear band wire enters the fourth roller 242 from the output end of the winding mechanism 21. The sensor 241 provided on the sensing mechanism 24 can achieve precise control of the length of the ear band wire, that is, in the final welding process, the user can adjust the length of the ear band wire to achieve the required length, and the device is also provided with an adjusting mechanism 25, and the adjusting mechanism 25 is provided with a guide rail 251, an adjusting slider 252 and a mechanical arm 253, when the ear band wire is output from the output end of the tape feeding mechanism 23, the adjusting slider 252 The output ear strap wire is received, and the guide rail 251 and the mechanical arm 253 are arranged on the top of the first bracket 10, so that the ear strap wire can adjust its own position before entering the feeding mechanism 30. That is to say, the ear strap wire is arranged neatly and orderly before entering the feeding mechanism 30, and can then enter the feeding mechanism 30 neatly. During welding, since the ear strap wire has been precisely adjusted, the welded product can also be guaranteed with high precision, which is beneficial to improving the precision of the device.

[0060] In another embodiment of the present invention, Figures 1 to 3 As shown, the feeding mechanism 30 includes a connecting shaft 32, both ends of which are tightly connected to the rotating frame 31, and both ends of the connecting shaft 32 are rotatably connected to the first bracket 10. Specifically, the rotating frame 31 and the connecting shaft 32 are tightly connected and arranged on the first bracket 10, and a belt 322, a belt 322, a pulley 321 is installed on the connecting shaft 32, and the belt 322, a belt 322, a pulley 321 and the second driving mechanism 62 are connected through the belt 322.

[0061] In another embodiment of the present invention, Figures 1 to 3As shown, the feeding mechanism 30 further includes a cam seat 33, the cam seat 33 is tightly connected to the connecting shaft 32, and the protrusion 331 of the cam seat 33 is slidably connected to each of the guide components 420. Specifically, when the power supply of the second driving mechanism 62 is started, the connecting shaft 32 is driven, so that the cam seat 33 connected to the connecting shaft 32 is also driven, and the cam seat 33 provided on the device can just cooperate with the guide component on the elastic ear strap mechanism 40, and the cam seat 33 provided on the connecting shaft 32 and the elastic ear strap mechanism 40 are mechanically matched, and the cooperation between the cam seat 33 and the elastic ear strap mechanism 40 is simple and convenient, eliminating the complex mechanical structure of the traditional machine, that is, the entire process is cleverly matched by the cam seat 33 provided on the device and the guide component on the elastic ear strap mechanism 40, which is conducive to improving economic efficiency.

[0062] In another embodiment of the present invention, Figures 1 to 5 As shown, the feeding mechanism 30 also includes a first cam 34, a second cam 35 and a third cam 36. The first cam 34, the second cam 35 and the third cam 36 are all tightly connected to the connecting shaft 32, and the first cam 34, the second cam 35 and the third cam 36 are slidingly connected to the clamping mechanism 520, the shearing mechanism 530 and the welding mechanism 540 respectively. Specifically, the first cam 34, the second cam 35 and the third cam 36 are all tightly connected to the connecting shaft 32, and the first cam 34, the second cam 35 and the third cam 36 are respectively provided with a first sleeve (not shown), a second sleeve (not shown) and a third sleeve (not shown). The first cam 34, the second cam 35 and the third cam 36 are respectively matched with the connecting shaft 32 through the first sleeve, the second sleeve and the third sleeve, and the fasteners (not shown) are respectively passed through the threaded holes (not shown) provided on the first sleeve, the second sleeve and the third sleeve, so as to realize the connection between the first cam 34, the second cam 35 and the third cam 36 and the connecting shaft 32. The tight connection makes the connection tighter. When the pressing and shearing welding mechanism 50 reaches the processing position, the pressing and welding mechanism 540 contacts the first cam 34, the second cam 35 and the third cam 36 provided on the device. The first cam 34, the second cam 35 and the third cam 36 provided on the connecting shaft 32 are mechanically matched with the pressing and shearing welding mechanism 50. The matching between the first cam 34, the second cam 35 and the third cam 36 and the pressing and shearing welding mechanism 50 is simple and convenient, eliminating the complex mechanical structure of the traditional machine. That is to say, the entire process is cleverly matched by the first cam 34, the second cam 35 and the third cam 36 provided in the device and the pressing and shearing welding mechanism 50, which is beneficial to improving the economy and is easier to operate. It is beneficial for the operator to maintain and service the winding mechanism 21, and greatly reduces the time when the external equipment cannot be used for production due to shutdown and maintenance.

[0063] In another embodiment of the present invention, Figures 1-2 As shown, the number of the elastic ear strap mechanism 40 and the number of the pressing, shearing and welding mechanism 50 are both eight. Specifically, the number of the elastic ear strap mechanism 40 and the pressing, shearing and welding mechanism 50 provided in the device is eight. If the number is too small, the coordination between the overall structure will be affected, and the waiting time required during the processing will be longer. If the number is too large, the space occupied by the overall structure will be larger, and the floor space of the overall structure will be increased.

[0064] In another embodiment of the present invention, Figures 1-2 As shown, the second feeding mechanism 60 includes a pressing roller mechanism 61 and a second driving mechanism 62 . The pressing roller mechanism 61 is disposed beside the rotating frame 31 , and the output end of the second driving mechanism 62 is connected to the input end of the pressing roller mechanism 61 . Specifically, the pressing roller mechanism 61 is arranged beside the rotating frame 31, that is, at the feeding place of the mask body. The pressing roller mechanism 61 includes a first roller 611 and a second roller 612. The first roller 611 and the second roller 612 are both arranged on the frame of the pressing roller mechanism 61. The first roller 611 and the second roller 612 are respectively provided with a first gear 6111 and a second gear 6121. The first gear 6111 and the second gear 6121 are meshed and connected. The second roller 612 is also provided with a sprocket 6122, and the sprocket 6122 is connected to the second driving mechanism 62. When the power supply of the second driving mechanism 62 is started, the first roller 611 and the second roller 612 move toward each other, and a traction force is generated between the first roller 611 and the second roller 612 to pull the mask body and flatten the mask body, and then the mask body is transmitted to the next station for processing. The gap between the first roller 611 and the second roller 612 can be adjusted according to the actual production situation, which is conducive to improving the production accuracy.

[0065] In another embodiment of the present invention, Figures 1-2 As shown, the conveying mechanism 80 is arranged below the rotating frame 31, and the conveying direction of the conveying mechanism 80 is the same as the feeding direction of the pressing roller mechanism 61, and the conveying direction of the conveying mechanism 80 is on the same straight line as the feeding direction of the pressing roller mechanism 61. Specifically, the conveying mechanism 80 includes two slide rails (not shown) and a slide plate (not shown), the two slide rails are parallel and symmetrically arranged below the rotating frame 31, the input ends of the two slide rails are connected to the output end of the pressing roller mechanism 61, and a slide plate for loading the mask body is arranged on the two slide rails. When the mask body is output from the output end of the pressing roller mechanism 61 to the slide plate, the slide plate comes to the bottom of the rotating frame 31 along the two slide rails to weld the mask body. After the welding is completed, the slide plate carries the finished product along the two slide rails to the unloading place for unloading.

[0066] In another embodiment of the present invention, Figures 1-2 As shown, the welding assembly 70 is arranged below the conveying mechanism 80, and the output end of the welding assembly 70 is adapted to be connected with the output end of each of the pressure-shear welding mechanisms 50. Specifically, when the mask body is output from the output end of the roller mechanism 61 to the slide plate, when the slide plate comes to the bottom of the rotating frame 31 along the two slide rails, at this time, the output end of the welding mechanism 540 can just be adapted to be connected with the output end of the pressure-shear welding mechanism 50, that is, the welding mechanism 540 can cooperate with the pressure-shear welding mechanism 50 to press the ear band line on the mask body, and then cut the ear band line through the pressure-shear welding mechanism 50, and finally weld the ear band line through the pressure-shear welding mechanism 50. The welding mechanism 540 of the device is an ultrasonic welding machine. The welding effect of the ultrasonic welding machine is better. The ear band line and the mask body after welding are not easy to fall off, which is conducive to the improvement of product quality.

[0067] In another embodiment of the present invention, Figures 1 to 4 As shown, an elastic ear strap mechanism is provided, including a second bracket 410, a guide assembly 420, a lifting assembly 430 and a second elastic member, the guide assembly 420 is elastically connected to the second bracket 410 through the second elastic member, the guide assembly 420 is arranged on the second bracket 410 to guide the movement of the second bracket 410, and an accommodating cavity 450 for accommodating the lifting assembly 430 is formed between the second bracket 410 and the guide assembly 420, the lifting assembly 430 is arranged in the accommodating cavity 450, one end of the lifting assembly 430 is connected to the guide assembly 420 for fixing the lifting assembly 430, and the other end of the lifting assembly 430 is slidably connected to the second bracket 410 for winding the ear strap line.

[0068] Specifically, when the elastic ear strap mechanism of the present invention is working, the ear strap line is firstly wound around the guide assembly 420, and when the ear strap line is stretched to the side of the lifting assembly 430, the ear strap line is wound along the contour of the lifting assembly 430 for half a circle, and then the ear strap line is stretched back to the next mechanism of the external device, and the winding of the ear strap line is completed. At this time, the power supply of the external device is started, and the elastic ear strap mechanism performs a circular motion along the axis of the external device. When the elastic ear strap mechanism reaches the processing position, a cam provided on the external device can just cooperate with the guide assembly 420 on the elastic ear strap mechanism, and the protrusion on the cam pushes the guide assembly 420 open, and the lifting assembly 430 fixedly connected to the guide assembly 420 is also pushed open, and then the elastic ear strap mechanism is turned on and turned off. The ear strap line of the elastic ear strap mechanism is adjusted to an appropriate length. When the mask body passes under the ear strap line, the external device can just weld the ear strap line to the mask body. When the elastic ear strap mechanism returns to the top after completing a process, the flange on the cam is separated from the guide component 420. Since the guide component 420 is connected to the second bracket 410 through the second elastic member, the guide component 420 returns to its initial position under the action of elastic force. That is to say, the lifting component 430 fixedly connected to the guide component 420 can also return to its initial position. Then the lifting component 430 repeats the process on the ear strap line. The entire process is achieved through the ingenious coordination between the cam set by the external device and the guide component 420 on the elastic ear strap mechanism.

[0069] In another embodiment of the present invention, Figures 1 to 4As shown, the guide assembly 420 includes a frame 421, a bearing 422 and a connecting shaft 423; the frame 421 is slidably connected to the second bracket 410, the connecting shaft 423 is passed through the bearing 422, an installation cavity 2411 is provided on the frame 421, the bearing 422 and the connecting shaft 423 are both arranged in the installation cavity 2411, and two first through holes 4212 for fixing the connecting shaft 423 are also provided on the frame 421, and the two ends of the connecting shaft 423 are tightly connected with the two first through holes 4212 respectively. Specifically, after the connecting shaft 423 and the bearing 422 are matched through the shaft hole, the connecting shaft 423 and the bearing 422 are installed in the installation cavity 2411 opened at one end of the frame 421, which can reduce the space occupied by the connecting shaft 423 and the bearing 422. In addition, the installation cavity 2411 opened on the frame 421 provides protection for the connecting shaft 423 and the bearing 422, so that the connecting shaft 423 and the bearing 422 installed in the installation cavity 2411 are not easily damaged and cause problems with the equipment. Two first through holes 4212 are also opened on the frame 421. The two first through holes 4212 and the two ends of the connecting shaft 423 can achieve shaft hole matching, so that the connecting shaft 423 can be more stably installed in the installation cavity 2411. In addition, the two first through holes 4212 also limit the position of the connecting shaft 423, so that the matching of the connecting shaft 423 and the frame 421 is more precise.

[0070] In another embodiment of the present invention, Figures 1 to 4 As shown, the guide assembly 420 further includes two retaining springs 424 , which are respectively adapted to be engaged with two ends of the connecting shaft 423 to limit the displacement of the connecting shaft 423 .

[0071] In another embodiment of the present invention, Figures 1 to 4As shown, the guide assembly 420 also includes a first connecting column 425, a second through hole 4213 is opened on the frame 421, the first connecting column 425 is tightly connected with the second through hole 4213, and the second bracket 410 is provided with two second connecting columns 411 corresponding to the position of the first connecting column 425, and the first connecting column 425 and the two second connecting columns 411 are elastically connected by a spring 441. Specifically, a second through hole 4213 is provided on the frame 421, and the second through hole 4213 can be matched with the axial hole of the first connecting column 425, so that the first connecting column 425 can be tightly assembled on the frame 421, and two second connecting columns 411 are also provided on the side wall of the second bracket 410, and the positions of the two second connecting columns 411 correspond to the positions of the first connecting column 425. The two second connecting columns 411 and the two ends of the first connecting column 425 can be connected by a spring 441. Due to the action of the spring 441, the guide assembly 420 can always maintain its initial state, thereby achieving the tightening of the ear strap line.

[0072] In another embodiment of the present invention, Figures 1 to 4 As shown, a first threaded hole 4251 is formed on the first connection column 425 , a third through hole 4214 is formed on the frame 421 , and the first threaded hole 4251 and the third threaded hole 4322 are connected by a fastener (not shown).

[0073] In another embodiment of the present invention, Figures 1 to 4 As shown, the lifting assembly 430 includes a push rod 431 and a fixed block 432, the fixed block 432 is fixedly connected to the guide assembly 420, the push rod 431 is slidably connected to the second bracket 410, and the top of the fixed block 432 is slidably connected to the push rod 431. Specifically, the lifting assembly 430 is arranged on the frame 421, so that when the frame 421 is pulled, the lifting assembly 430 can be driven to move together to complete the tightening of the ear strap line. The lifting part is composed of a push rod 431 and a fixed block 432. The fixed block 432 and the frame 421 are detachably connected, which is convenient for users to replace equipment parts. A slide groove (not shown) is provided on the top of the fixed block 432. The push rod 431 is inserted into the slide groove to realize the free movement of the push rod 431, that is, the user can adjust the length of the push rod 431 as needed, so as to adjust the length of the ear strap line.

[0074] In another embodiment of the present invention, Figures 1 to 4As shown, two second threaded holes 4321 are provided on the top side wall of the fixing block 432, both of which pass through the center thereof, and the two second threaded holes 4321 are symmetrical along the top rod 431. The top rod 431 is arranged between the two second threaded holes 4321, and fasteners (not shown) can be inserted into the two second threaded holes 4321 to fix the top rod 431.

[0075] In another embodiment of the present invention, Figures 1 to 4 As shown, a third threaded hole 4322 is provided on the bottom of the fixing block 432 and passes through both ends of the center thereof, and a fourth threaded hole 4215 corresponding to the position of the third threaded hole 4322 is provided on the frame 421, and the third threaded hole 4322 is connected to the fourth threaded hole 4215 by fasteners.

[0076] In another embodiment of the present invention, Figures 1 to 4 As shown, a avoidance groove 412 is provided on the top of the second bracket 410 along the length direction thereof, and the avoidance groove 412 is slidably connected to the top rod 431 .

[0077] In another embodiment of the present invention, Figures 1 to 4 As shown, a plurality of fifth threaded holes 413 are further provided on the top of the second bracket 410 , and each of the fifth threaded holes 413 runs through both ends of the center thereof for connection with external equipment.

[0078] In another embodiment of the present invention, Figure 1 , 2 As shown in , 3 and 5, a pressing, shearing and welding mechanism is provided, comprising a third bracket 510, a pressing mechanism 520, a shearing mechanism 530, a welding mechanism 540 and a plurality of third elastic members; the pressing mechanism 520, the shearing mechanism 530 and the welding mechanism 540 are elastically connected to the third bracket 510 through the third elastic members, the pressing mechanism 520 is rotatably connected to the third bracket 510 for pressing the ear strap line, the shearing mechanism 530 is rotatably connected to the third bracket 510 for shearing the ear strap line, and the welding mechanism 540 is slidably connected to the third bracket 510 for fixing the position of the ear strap line.

[0079] Specifically, when the pressing, shearing and welding mechanism of the present invention is working, first, the ear strap wire is wound around the side of the pressing mechanism 520. At this time, the power supply of the external device is started, and the pressing, shearing and welding mechanism performs a circular motion along the axis of the external device. When the pressing, shearing and welding mechanism reaches the processing position, the pressing mechanism 520 contacts the first cam provided on the external device, and the first cam pushes the pressing mechanism 520 open. Under the condition of external force, the pressing mechanism 520 gradually approaches the third bracket 510 and presses the ear strap wire wound on the pressing mechanism 520. Then, the second cam provided on the external device contacts the shearing mechanism 530, and the second cam pushes the shearing mechanism 530 open. The shearing mechanism 530 gradually moves in the relative direction under the condition of external force and cuts the ear strap line. At this time, the third cam provided on the external device contacts the welding mechanism 540. When the third cam pushes the welding mechanism 540 open, the welding mechanism 540 pushes the ear strap line toward the direction of the ultrasonic welding machine under the condition of external force. At this time, the ultrasonic welding machine and the welding mechanism 540 fix the position of the ear strap line and weld the ear strap line. The whole process is cleverly coordinated through the first cam, the second cam and the third cam provided on the external device, and the pressing mechanism 520, the shearing mechanism 530 and the welding mechanism 540 on the pressing and shearing welding mechanism.

[0080] In another embodiment of the present invention, Figure 1 , 2 As shown in Figures 3, 5 and 6, the clamping mechanism 520 includes a first connecting component 521, a lifting mechanism 522 and two pressing arms 523; the first connecting component 521 is slidingly connected to the third bracket 510, the lifting mechanism 522 is fixedly connected to the first connecting component 521, and the two pressing arms 523 are both arranged on both sides of the lifting mechanism 522 and are rotatably connected to the third bracket 510. Specifically, the first connecting component 521 and the third bracket 510 are connected by the third elastic member before, so that the first connecting component 521 always maintains the initial state, when the first cam set on the external device contacts the first connecting component 521 and pushes the first connecting component 521 open, the lifting mechanism 522 fixedly connected to the first connecting component 521 is also pushed open, and at this time, the two pressing arms 523 set beside the lifting mechanism 522 are squeezed by the lifting mechanism 522, and the connecting sections 5321 of the two pressing arms 523 are rotatably connected to the third bracket 510, and the two pressing arms 523 are continuously squeezed by the lifting mechanism 522. Finally, the pressing sections of the two pressing arms 523 are tightly matched with the third bracket 510, so that the two pressing arms 523 press the ear band line onto the third bracket 510, thereby realizing the next step.

[0081] In another embodiment of the present invention, Figure 1 , 2As shown in , 3, 5, and 6, the first connecting component 521 includes a first frame 5211, a first bearing 5212 and a first connecting shaft 5213, the first frame 5211 is slidably connected to the third bracket 510, the first frame 5211 is fixedly connected to the lifting mechanism 522, a first installation cavity 52111 is opened on the frame, the first bearing 5212 and the first connecting shaft 5213 are both arranged in the first installation cavity 52111, the first connecting shaft 5213 is passed through the first bearing 5212, and the two ends of the first connecting shaft 5213 are respectively tightly connected to the first frame 5211.

[0082] In another embodiment of the present invention, Figure 1 , 2 As shown in Figures 3, 5, and 6, the clamping mechanism 520 also includes two third connecting columns 524 and two fourth connecting columns 525. The two pressing arms 523 are each provided with a fourth through hole 5231, and the first frame 5211 is provided with a fifth through hole 52112. The two third connecting columns 524 are respectively tightly connected with the two fourth through holes 5231, and the two fourth connecting columns 525 are respectively tightly connected with the two fourth through holes 5231. The two third connecting columns 524 are elastically connected by a first spring 551, and the two fourth connecting columns 525 and the third bracket 510 are elastically connected by a second spring 552.

[0083] In another embodiment of the present invention, Figure 1 , 2 As shown in Figures 3, 5, and 7, the shearing mechanism 530 includes a second connecting component 531 and two blades 532; the second connecting component 531 is slidably connected to the third bracket 510, and the two blades 532 each have a connecting section 5321 and a shearing section 5322; the connecting sections 5321 of the two blades 532 are both rotatably connected to the second connecting component 531, and the shearing sections 5322 of the two blades 532 are both rotatably connected to the third bracket 510. Specifically, when the second cam provided on the external device contacts the second connecting component 531 and pushes the second connecting component 531 open, the two blades 532 rotatably connected to the second connecting component 531 gradually approach each other, and when the two blades 532 are continuously squeezed by the second connecting component 531, a shearing force is formed between the two blades 532 to shear the belt line.

[0084] In another embodiment of the present invention, Figure 1 , 2As shown in , 3, 5, and 7, the second connecting component 531 includes a second frame 53111, a second bearing 5312 and a second connecting shaft 5313. The second frame 53111 is slidably connected to the third bracket 510. A second mounting cavity 53111 is opened on the frame. The second bearing 5312 and the second connecting shaft 5313 are both arranged in the second mounting cavity 53111. The second connecting shaft 5313 is passed through the second bearing 5312. Both ends of the second connecting shaft 5313 are tightly connected to the second frame 53111.

[0085] In another embodiment of the present invention, Figure 1 , 2 As shown in , 3, 5, and 7, the shearing mechanism 530 further includes two fifth connecting columns 533 and two fixed shafts 534, the third bracket 510 is provided with two sixth through holes 511, the two fifth connecting columns 533 are respectively tightly connected with the two sixth through holes 511, the two fixed shafts 534 are both rotatably connected with the two blades 532, and the two fifth connecting columns 533 and the two fixed shafts 534 are elastically connected via a third spring 553.

[0086] In another embodiment of the present invention, Figure 1 , 2 As shown in Figures 3, 5 and 8, the welding mechanism 540 includes a third connecting component 541 and two welding arms 542; the third connecting component 541 is slidably connected to the third bracket 510, one end of the two welding arms 542 is fixedly connected to the third connecting component 541, and the other end of the two welding arms 542 is slidably connected to the third bracket 510.

[0087] In another embodiment of the present invention, Figure 1 , 2 As shown in Figures 3, 5 and 8, the third connecting component 541 includes a third frame 5411, a third bearing 5412 and a third connecting shaft 5413. The third frame 5411 is slidably connected to the third bracket 510. A third mounting cavity 54111 is provided on the frame. The third bearing 5412 and the third connecting shaft 5413 are both arranged in the third mounting cavity 54111. The third connecting shaft 5413 is passed through the third bearing 5412. Both ends of the third connecting shaft 5413 are tightly connected to the third frame 5411.

[0088] In another embodiment of the present invention, Figure 1 , 2As shown in , 3, 5, and 8, the welding mechanism 540 further includes two sixth connecting columns 543 and a seventh connecting column 544, and the third frame 5411 is provided with two seventh through holes 54112 and an eighth through hole 54113, the two sixth connecting columns 543 are respectively tightly connected with the two seventh through holes 54112, and the seventh connecting column 544 is tightly connected with the eighth through hole 54113, the two sixth connecting columns 543 and the third bracket 510 are elastically connected via a fourth spring 554, and the seventh connecting column 544 and the third bracket 510 are elastically connected via a fifth spring 555.

[0089] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An ear band continuous welding machine, characterized in that: First bracket; A first feeding mechanism, the first feeding mechanism is arranged at the top of the first bracket for receiving the incoming ear band material, the first feeding mechanism comprises a winding mechanism, a first driving mechanism and a tape feeding mechanism; the winding mechanism, the first driving mechanism and the tape feeding mechanism are all fixedly connected to the top of the first bracket, the winding mechanism and the tape feeding mechanism are arranged adjacent to each other, and the output end of the winding mechanism and the input end of the tape feeding mechanism are on the same straight line, and the output end of the first driving mechanism is connected to the input end of the winding mechanism; A feeding mechanism, the feeding mechanism is arranged below the first feeding mechanism for conveying ear strap lines, the feeding mechanism comprises a rotating frame, a plurality of elastic ear strap mechanisms and a plurality of pressing, shearing and welding mechanisms; each of the elastic ear strap mechanisms and each of the pressing, shearing and welding mechanisms are alternately arranged on the rotating frame, and the rotating frame is rotatably connected to the first bracket; the feeding mechanism comprises a connecting shaft and a cam seat, both ends of the connecting shaft are tightly connected to the rotating frame, and both ends of the connecting shaft are rotatably connected to the first bracket; the cam seat is tightly connected to the connecting shaft, and the raised portion of the cam seat is slidably connected to each guide assembly; the feeding mechanism also comprises a first cam, a second cam and a third cam, the first cam, the second cam and the third cam are tightly connected to the connecting shaft, and the first cam, the second cam and the third cam are slidably connected to the pressing mechanism, the shearing mechanism and the welding mechanism respectively; A second feeding mechanism, which is disposed beside the rotating frame and is used to receive incoming materials of the mask body; A welding assembly, which is disposed below the rotating frame and is used to weld the ear strap wire to the mask body; and A conveying mechanism is provided between the rotating frame and the welding assembly for conveying finished products.

2. The ear loop continuous welding machine according to claim 1, characterized in that: The first feeding mechanism also includes a sensing mechanism and an adjusting mechanism, both of which are fixedly connected to the top of the first bracket, the sensing mechanism is arranged between the winding mechanism and the belt feeding mechanism, and the adjusting mechanism is arranged below the belt feeding mechanism.

3. The ear loop continuous welding machine according to claim 1 or 2, characterized in that: The number of the elastic ear strap mechanisms and the number of the pressing, shearing and welding mechanisms are both eight.

4. The ear loop continuous welding machine according to claim 1 or 2, characterized in that: The second feeding mechanism includes a pressing roller mechanism and a second driving mechanism. The pressing roller mechanism is arranged beside the rotating frame. The output end of the second driving mechanism is connected to the input end of the pressing roller mechanism.

5. The ear loop continuous welding machine according to claim 4, characterized in that: The conveying mechanism is arranged below the rotating frame, and the conveying direction of the conveying mechanism is the same as the feeding direction of the pressing roller mechanism, and the conveying direction of the conveying mechanism and the feeding direction of the pressing roller mechanism are on the same straight line.

6. The ear loop continuous welding machine according to claim 1 or 2, characterized in that: The welding assembly is arranged below the conveying mechanism, and the output end of the welding assembly is adaptively connected with the output end of each of the pressing and shearing welding mechanisms.

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