CN212446412U - High-speed ultrasonic welding equipment for mask ear belt - Google Patents

Abstract

The utility model discloses a high-speed ultrasonic welding device for mask ear bands, which comprises a dynamic welding part, a mask piece supply part and an ear band supply part, wherein the dynamic welding part comprises an annular steel band, a steel band wheel set and an ultrasonic device, the annular steel band can circularly move under the matching of the steel band wheel set, and the ultrasonic device is positioned at the inner side of the annular steel band and corresponds to the plane section at the upper side of the annular steel band; the mask sheet supply part may continuously supply the mask sheet to the dynamic welding part; the ear band supply portion can continuously supply the ear band to the dynamic welding portion. By adopting a dynamic welding mode, the waiting time of ultrasonic welding of the mask sheet and the ear band is saved, the high-speed continuous welding of the mask sheet and the ear band is realized, and the ultrasonic welding efficiency of the mask ear band is improved.

Description

High-speed ultrasonic welding equipment for mask ear belt

Technical Field

The utility model relates to a gauze mask piece and ear area ultrasonic welding technique, in particular to gauze mask ear area high-speed ultrasonic welding equipment.

Background

In the automatic production process of the mask, after the mask sheet is manufactured, an ear band (or called ear line, cotton line and the like) ultrasonic welding step is carried out, namely, the mask sheet and the ear band are conveyed to the position of an ultrasonic generator, the end parts of two ends of the ear band are pressed and pressed with the edge positions of two sides of the mask sheet, and the two ends of the ear band are combined together through ultrasonic welding to form the complete mask. At present, the ultrasonic welding ear band process of the traditional mask machine adopts a mode of fixed-point positioning static welding, namely, the mask sheet and the ear band are sequentially sent to the position where ultrasonic waves are located, then the end parts of two ends of the ear band and the edge position of the side part of the mask sheet are pressed and pressed at the position, and then the mask sheet and the ear band are welded together by the ultrasonic waves (the waiting time is the time required by the completion of the ultrasonic welding and is generally more than 0.5 second). In the process, because the adopted welding mode is fixed-point positioning static welding, the mask sheets and the ear bands of the next group can be sent to the specified position for welding after the previous group of mask sheets and the ear bands are welded and moved to the specified position; thus, much time is consumed, and the welding efficiency of the mask sheet and the ear band cannot be improved. In summary, in the conventional mask device, in the process of welding the mask sheet and the ear band, even if the time for feeding the mask sheet and the ear band is not calculated, the production efficiency is difficult to break through 100+/min simply by waiting for the time for welding the mask sheet and the ear band by ultrasonic waves. Thus, there are many unreasonable areas where conventional mask patch and ear strap ultrasonic welding techniques can be unreasonably implemented and need to be improved.

SUMMERY OF THE UTILITY MODEL

To the above, an object of the utility model is to provide a high-speed ultrasonic bonding equipment of gauze mask ear area adopts dynamic welded mode, saves gauze mask piece and ear area ultrasonic bonding's latency, realizes the high-speed continuity welding of gauze mask piece and ear area, promotes gauze mask ear area ultrasonic bonding efficiency.

The utility model adopts the technical proposal that: a high-speed ultrasonic welding device for mask ear belts comprises a dynamic welding part, a mask piece supplying part and an ear belt supplying part, wherein the dynamic welding part comprises an annular steel belt, a steel belt wheel set and an ultrasonic device, the annular steel belt can circularly move under the cooperation of the steel belt wheel set, and the ultrasonic device is positioned on the inner side of the annular steel belt and corresponds to a plane section on the upper side of the annular steel belt; the mask sheet supply part may continuously supply the mask sheet to the dynamic welding part; the ear band supply portion can continuously supply the ear band to the dynamic welding portion.

The mask piece and the ear belt respectively and continuously enter the plane section of annular steel band upside one by one, the mask piece that the position corresponds forms a set of with the ear belt, make the tip at ear belt both ends compress tightly the surface of pasting at annular steel band with the marginal position of mask piece lateral part, and follow the annular steel band and remove, until the plane section through the annular steel band upside, at this in-process, ultrasonic device corresponds with the plane section of annular steel band upside, carry out dynamic weld with the ear belt to every group mask piece of the plane section through the annular steel band upside.

Further, the dynamic welding part comprises two groups which are positioned at the left side and the right side of the mask sheet supply part and respectively correspond to the edge positions of the left side part and the right side part of the mask sheet, and the ear band supply part also comprises two groups which are positioned at the left side and the right side of the mask sheet supply part and respectively correspond to the edge positions of the left side part and the right side part of the mask sheet.

Furthermore, the dynamic welding part also comprises a welding mounting seat, the steel belt wheel set is arranged on the side part of the welding mounting seat and comprises four steel belt wheels which are distributed in a square shape, and the annular steel belt is sleeved on the four steel belt wheels and circularly moves in a shape like a Chinese character 'kou' under the driving of the steel belt wheels; the ultrasonic device is arranged on the side part of the welding mounting seat and is positioned among the four steel belt wheels.

Furthermore, the two groups of dynamic welding parts share the same welding installation seat, and the annular steel belts, the steel belt wheel sets and the ultrasonic devices of the two groups of dynamic welding parts are respectively arranged on two sides of the welding installation seat; the middle position of the welding installation seat is provided with a steel belt wheel driving shaft which is connected with the steel belt wheel groups on the left side and the right side, and the steel belt wheel driving shaft is connected with a power input end so as to synchronously drive the steel belt wheel groups on the left side and the right side and further drive the annular steel belts on the left side and the right side to synchronously and circularly move.

Furthermore, the upper side end face of an ultrasonic generator of the ultrasonic device is in a long strip shape and is tightly attached to the inner side face of the plane section on the upper side of the annular steel strip, so that the coverage range of the ultrasonic action is realized in one length of the plane section on the upper side of the annular steel strip.

Further, gauze mask piece part of supplying with includes gauze mask piece conveyer belt and conveyer belt drive arrangement, the even interval of gauze mask piece conveyer belt is provided with a plurality of gauze mask pieces and places the position, gauze mask piece conveyer belt is corresponding with dynamic welding part's annular steel band, can follow gauze mask piece input end and get the gauze mask piece and carry to dynamic welding part one by one continuously, and after the gauze mask piece got into the plane section of annular steel band upside the scope, make the border position of gauze mask piece lateral part correspond with the plane section of annular steel band upside to follow the annular steel band and remove.

Further, the ear belt supply part comprises a loop wire guide rail, a welding head trolley mechanism, a loop wire driving mechanism and a winding and cutting mechanism, one side of the loop wire guide rail corresponds to the loop wire belt, the other side of the loop wire guide rail corresponds to the winding and cutting mechanism, the welding head trolley mechanism comprises a plurality of groups which are uniformly arranged on the loop wire guide rail at intervals, the welding head trolley mechanism comprises a trolley sliding seat, a welding head assembly and a wire clamping assembly, the trolley sliding seat is arranged on the loop wire guide rail in a sliding mode and moves circularly along the loop wire guide rail under the driving of the loop wire driving mechanism, the welding head assembly presses and attaches the end parts of the two ends of the ear belt on the wire clamping assembly and the edge position of the side part of the mask sheet to the surface of the loop wire belt when the welding head trolley mechanism reaches the winding and cutting mechanism, and the wire clamping assembly is matched with the winding and cutting mechanism when the welding head trolley mechanism, clip the ear area and cut off, and expose the tip at ear area both ends, wire winding thread cutting mechanism includes wire winding subassembly and tangent line subassembly, wire winding subassembly is around the ear area on the thread tension subassembly, treats that the thread tension subassembly presss from both sides tightly the back, cuts off the ear area by tangent line subassembly.

Further, the loop driving mechanism comprises a loop belt, a loop belt wheel and a loop connecting block, the loop belt is arranged on the inner side of the loop guide rail, the loop belt wheel is connected with a power input end and drives the loop belt to move circularly corresponding to the loop guide rail, the loop connecting block comprises a plurality of loop belts which are arranged on the loop belt at uniform intervals and are respectively connected with trolley sliding seats of a plurality of groups of welding head trolley mechanisms on the loop guide rail, and therefore the loop belt drives the plurality of groups of welding head trolley mechanisms to move circularly along the loop guide rail through the loop connecting block.

Furthermore, a plurality of avoiding grooves are uniformly formed in the circumference of the loop line belt wheel, so that the loop line belt wheel is prevented from interfering with a loop line connecting block on a loop line belt when the loop line belt wheel drives the loop line belt to circularly move.

Further, the welding head assembly comprises a welding head mounting seat, a welding head sliding block, a welding head fixing block, a welding head guide pin, a welding head return spring and a welding head pinch roller; the welding head is arranged on a welding head fixing block, the welding head fixing block is arranged on a welding head sliding block, the welding head sliding block is arranged on a welding head mounting seat in a vertical sliding mode, the welding head mounting seat is arranged on a trolley sliding seat, a welding head guide pin and a welding head reset spring are arranged on the welding head fixing block in a matching mode, the welding head sliding block plays a role in resetting, a welding head pressing wheel is arranged at the upper end of the welding head fixing block, in addition, a welding head pressing block is arranged above a plane section of the upper side of the annular steel strip of the dynamic welding part, the lower side of the welding head pressing block is provided with a welding head pressing surface in an ︺ shape, when a welding head trolley mechanism reaches the plane section of the upper side of the annular steel strip, the front section inclined plane of the welding head pressing surface is matched with the welding head pressing wheel, the resetting force of the welding head reset, the end part of an ear belt on a wire clamping assembly and the edge position of the side part of a mask sheet are pressed and attached to the surface of an annular steel belt, the middle section plane of a welding head pressing surface is matched with a welding head pressing wheel, so that the ear belt and the mask sheet move along with the annular steel belt in the section range, the welding head is always kept in a pressing state, the rear section inclined plane of the welding head pressing surface is matched with the welding head pressing wheel, the reset force of a welding head reset spring is released, the welding head pressing wheel moves upwards, a welding head fixing block moves upwards under the matching action of a welding head guide pin and the welding head reset spring, the welding head moves upwards, and the pressing action on the ear belt and the; the welding head, the welding head sliding block, the welding head fixing block, the welding head guide pin, the welding head return spring and the welding head pressing wheel are respectively arranged at the two ends of the lug belt.

Further, the wire clamping assembly comprises a wire clamping mounting seat, a left clamping finger, a right clamping finger, a first clamping finger driving piece and a second clamping finger driving piece, the left clamping finger comprises a first left clamping finger and a second left clamping finger, the rear end parts of the first left clamping finger and the second left clamping finger are hinged on the left side of the front end part of the wire clamping mounting seat, gears are arranged on the rear end parts of the first left clamping finger and the second left clamping finger, the right clamping finger comprises a first right clamping finger and a second right clamping finger, the rear end parts of the first right clamping finger and the second right clamping finger are hinged on the right side of the front end part of the wire clamping mounting seat, gears are arranged on the rear end parts of the first right clamping finger and the second right clamping finger, the first clamping finger driving piece is arranged on the wire clamping mounting seat, racks corresponding to the gears on the rear end parts of the first left clamping finger and the first right clamping finger are respectively arranged on the left side and the right side of the front end part, and the second clamping finger driving piece is arranged on the wire clamping mounting seat, the left side and the right side of the front end part are respectively provided with a rack corresponding to the gear at the rear end part of the second left clamping finger and the second right clamping finger; the first gripper driving piece and the second gripper driving piece are arranged in a stacked mode and can slide relatively, the first gripper driving piece and the second gripper driving piece are tensioned through a driving piece reset spring, a first driving piece roller is arranged at the rear end of the first gripper driving piece, a second driving piece roller is arranged at the rear end of the second gripper driving piece, a gripper driving piece guide rail is arranged on the lower side of the loop guide rail, the inner side face of the gripper driving piece guide rail is a driving piece roller inner side guide face matched with the first driving piece roller of the first gripper driving piece, and the outer side face of the gripper driving piece guide rail is a driving piece roller outer side guide face matched with the second driving piece roller of the second gripper driving piece; wherein, at bonding tool dolly mechanism along loop guide rail cyclic motion's in-process, the inboard guide face of driving piece gyro wheel guide first driving piece gyro wheel respectively, second driving piece gyro wheel along tong driving piece guide track cyclic motion, the inboard guide face of driving piece gyro wheel or the inboard guide face of driving piece gyro wheel are equipped with the transition inclined plane at the settlement position to make first driving piece gyro wheel, second driving piece gyro wheel through the transition inclined plane that corresponds, under driving piece reset spring's effect, drive first tong driving piece, second tong driving piece relative movement, and then through the cooperation of rack and gear, drive left clamp finger of left tong, the left clamp finger of second and the first right clamp finger of right tong, the right clamp finger of second opens or presss from both sides tightly.

Further, the inside guide surface of driving piece gyro wheel or the outside guide surface of driving piece gyro wheel is provided with the transition inclined plane before the winding subassembly that bonding tool dolly mechanism left winding tangent line mechanism gets into tangent line subassembly for left tong, right tong become clamping state by opening the state, thereby press from both sides tight with the ear area two, the inside guide surface of driving piece gyro wheel or the outside guide surface of driving piece gyro wheel are provided with the transition inclined plane after bonding tool dolly mechanism passes through the plane section of annular steel band upside, make left tong, right tong become opening the state by clamping state, will have been loosened by the ear area of welding mask piece, get into next circulation to prepare the winding subassembly that cooperates winding tangent line mechanism, carry out the winding action of next time.

Furthermore, the guide surface of the inner side of the driving piece roller or the guide surface of the outer side of the driving piece roller is also provided with a transition inclined surface when the welding head trolley mechanism enters the range of the winding assembly corresponding to the winding and wire cutting mechanism, so that the opening degree and the opening angle of the left clamping hand and the right clamping hand in the opening state are adjusted, and the left clamping hand and the right clamping hand are matched with the winding assembly to wind wires.

Further, the wire clamping assembly comprises a middle wire winding pin piece, the middle wire winding pin piece is arranged below the wire clamping mounting seat and is located behind the middle position of the left clamping hand and the right clamping hand, and the wire winding assembly of the wire winding and cutting mechanism is matched for wire winding.

Furthermore, the winding assembly of the winding and cutting mechanism comprises a winding drum, a winding swing rod, a winding connecting rod and a winding cam, wherein the winding drum is arranged at one end of the winding swing rod, the other end of the winding swing rod is hinged, one end of the winding connecting rod is hinged with the middle part of the winding swing rod, the other end of the winding connecting rod is hinged to the winding cam, and the winding cam is connected with a power input end; the ear cotton threads penetrate through the winding drum, the winding cam drives the winding connecting rod to drive the winding oscillating rod to regularly swing, and then the winding drum is driven to wind the ear cotton threads between the left clamping hand and the right clamping hand of the thread clamping assembly and the middle winding pin piece.

Furthermore, the thread cutting component of the winding thread cutting mechanism comprises a main thread cutting knife wheel, an auxiliary thread cutting knife wheel and a knife wheel driving gear set, the main tangent knife wheel and the auxiliary tangent knife wheel are all provided with three extending parts uniformly on the circumference, so that the cross sections of the main tangent knife wheel and the auxiliary tangent knife wheel are in a Y-shaped scattering shape, wherein, the three extending parts of the main tangent line knife flywheel are respectively provided with a blade, the knife flywheel driving gear set is connected with the power input end and is also connected with the main tangent line knife flywheel and the auxiliary tangent line knife flywheel, thereby driving the main tangent line cutter wheel and the auxiliary tangent line cutter wheel to mutually cooperate and move, leading the three extending parts of the main tangent line cutter wheel and the auxiliary tangent line cutter wheel to regularly and circularly correspond, leading the blade on the extending part of the main tangent line cutter wheel to be matched with the end surface of the extending part of the auxiliary tangent line cutter, and at the position between the two adjacent groups of welding head trolley mechanisms, the ear belt cotton threads are cut off after being clamped by the thread clamping components of the two adjacent groups of welding head trolley mechanisms.

Further, wire winding tangent line mechanism still includes wire winding tangent line mount pad, wire winding subassembly and tangent line subassembly set up on wire winding tangent line mount pad.

The utility model has the advantages of it is following: but through setting up cyclic motion's annular steel band, then cooperate ultrasonic device again, adopt dynamic welding's mode, save gauze mask piece and ear area ultrasonic bonding's latency, realize the high-speed continuity welding of gauze mask piece and ear area, promote gauze mask ear area ultrasonic bonding efficiency. The whole welding process is automatically finished, and ultrasonic welding between the front and rear two groups of mask sheets and the ear belts does not need to stay for waiting and always keeps a high-speed forward conveying and moving state. Because there is a covering distance of the ultrasonic waves during the passage of the flat section on the upper side of the annular steel strip, the time for the passage of this distance is sufficient for the mask sheet to complete the welding with the ear strip. The welding in the whole process has continuity, and when the upper group of the mask sheets and the lug belts are welded on the plane section of the upper side of the annular steel strip, the lower group of the mask sheets and the lug belts enter the welding range of the plane section of the upper side of the annular steel strip immediately. That is to say, the circular steel belt which can move circularly is utilized to form a dynamic steel belt part, the traditional static waiting ultrasonic welding process is changed into a dynamic moving continuous welding process, waiting is not needed, and the production efficiency is greatly improved. The production efficiency can easily reach 200+/min or even 300 +/min.

The present invention will be further described with reference to the following description and embodiments in conjunction with the accompanying drawings.

Drawings

FIG. 1 is a schematic view of the overall structure of a high-speed ultrasonic welding device for ear straps of a mask;

FIG. 2 is a schematic view of the structure of FIG. 1 with the workbench and the related safety cover hidden;

FIG. 3 is a schematic view showing a fitting structure of the dynamic welding part, the mask sheet supplying part and the ear band supplying part;

FIG. 4 is a first schematic view of the fitting structure of the dynamic welding part and the mask sheet supplying part;

FIG. 5 is a second schematic view of the fitting structure of the dynamic welding part and the mask sheet supplying part;

FIG. 6 is a schematic view of a dynamic welding portion;

FIG. 7 is a first schematic structural view of a dynamic welding part with a part of components hidden;

FIG. 8 is a second schematic structural view of a dynamic welding part with a part of components hidden;

FIG. 9 is a schematic view of the mating structure of two sets of ear band supply portions;

FIG. 10 is a schematic structural view of the ear band supply portion on the left side in FIG. 9;

FIG. 11 is a schematic view of the structure of FIG. 10 from another angle;

FIG. 12 is a schematic view of the hidden part of the component in FIG. 11;

FIG. 13 is a schematic view of the hidden part of the component in FIG. 12;

FIG. 14 is a schematic structural view of the wire winding and cutting mechanism of FIG. 13;

FIG. 15 is a schematic view of the structure of FIG. 14 from another angle;

FIG. 16 is a schematic view of the hidden part of the component in FIG. 14;

FIG. 17 is a schematic structural view of the ear band supply portion on the right side in FIG. 9;

FIG. 18 is a schematic view of the hidden part of the component in FIG. 17;

FIG. 19 is a schematic structural view of the wire winding and cutting mechanism of FIG. 18;

FIG. 20 is a schematic view of the structure of FIG. 19 from another angle;

FIG. 21 is a schematic view of the fitting structure of the loop guide rail and the welding head carriage mechanism;

FIG. 22 is a schematic view of the backside structure of FIG. 21;

FIG. 23 is a schematic view of the engagement structure of the loop guide and the loop driving mechanism;

FIG. 24 is a schematic view of the backside structure of FIG. 23;

FIG. 25 is a schematic view of the configuration of the gripper driving member guide rail;

FIG. 26 is a first structural schematic diagram of a welding head trolley mechanism;

FIG. 27 is a second schematic structural view of the horn carriage mechanism;

FIG. 28 is a first schematic structural view of the wire clamping assembly;

FIG. 29 is a second schematic structural view of the wire clamping assembly;

FIG. 30 is a schematic view of the hidden part of the component in FIG. 28;

in the figure: a dynamic welding part 1; an annular steel belt 11; a steel belt wheel set 12; an ultrasonic device 13; welding the mounting seat 14; a steel pulley drive shaft 15;

a mask sheet supply portion 2; a mask sheet conveyor belt 21; a belt drive 22; a mask sheet placement position 23;

an ear band supply portion 3; a loop wire guide 31; a gripper driving member guide rail 311; driver roller inner guide surface 312; a driver roller outer guide surface 313; a transition ramp 314; a weld head carriage mechanism 32; a loop wire drive mechanism 33; a loop belt 331; a loop pulley 332; a loop wire connection block 333; a keep-away slot 334; a winding and cutting mechanism 34; a winding and cutting mount 341; a trolley slide 35; a horn assembly 36; a weld head mount 361; a bonding tool 362; a horn slider 363; a welding head fixing block 364; a weld head return spring 365; a weld head pinch 366; a welding head pressing block 367; a bonding tool pressing surface 368; a wire clamping assembly 37; a wire clamping mounting seat 371; a left gripper 372; a right gripper 373; a first gripper drive 374; second gripper drive 375; a gear 376; a rack 377; the driver return spring tension 378; an auxiliary spring 379; a first driver roller 37 a; a second driver roller 37 b; an intermediate winding pin member 37 c; a wire winding assembly 38; a bobbin 381; a winding swing rod 382; a winding link 383; a winding cam 384; a thread cutting assembly 39; a main tangent knife wheel 391; a secondary tangent cutter wheel 392; a knife wheel drive gear set 393; an extension 394; a blade 395.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that, if directional indicators (such as … …, upper, lower, left, right, front, back, top, bottom, inner, outer, vertical, horizontal, longitudinal, counterclockwise, clockwise, circumferential, radial, axial) are involved in the embodiments of the present invention, the directional indicators are only used to explain the relative position, motion, etc. of the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicators are changed accordingly.

In addition, if there is a description relating to "first" or "second", etc. in the embodiments of the present invention, the description of "first" or "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

Referring to fig. 1 to 30, the present embodiment describes a high-speed ultrasonic welding method for mask ear bands, which specifically includes the following steps:

1) arranging a dynamic welding part 1, wherein the dynamic welding part 1 comprises an annular steel belt 11, a steel belt wheel set 12 and an ultrasonic device 13, the annular steel belt 11 can circularly move under the cooperation of the steel belt wheel set 12, and the ultrasonic device 13 is positioned on the inner side of the annular steel belt 11 and corresponds to a plane section on the upper side of the annular steel belt 11; providing a mask sheet supply part 2, the mask sheet supply part 2 continuously supplying mask sheets to the dynamic welding part 1; providing an ear tape supply portion 3, the ear tape supply portion 3 being capable of continuously supplying an ear tape to the dynamic welding portion 1;

2) the mask piece supplying part 2 continuously conveys the mask pieces one by one to the dynamic welding part 1, and in the process that the mask pieces are continuously conveyed by the mask piece supplying part 2, after the mask pieces enter the range of the plane section on the upper side of the annular steel strip 11, the edge position of the side part of the mask piece corresponds to the plane section on the upper side of the annular steel strip 11 and moves along with the annular steel strip 11; meanwhile, the ear band supply part 3 continuously conveys the ear bands to the dynamic welding part 1 one by one, and in the process that the ear bands are continuously conveyed by the ear band supply part 3, after the ear bands enter the range of the plane section on the upper side of the annular steel band 11, the end parts of the two ends of the ear bands correspond to the edge positions of the side part of the mask sheet and move along with the annular steel band 11;

3) in the step 2), when each group of mask pieces and ear bands enter the plane section on the upper side of the annular steel band 11, the end parts of the two ends of the ear bands and the edge positions of the side parts of the mask pieces are pressed and attached to the surface of the annular steel band 11, and in the process that the mask pieces and the ear bands move along with the annular steel band 11, the ultrasonic device 13 realizes dynamic welding of the mask pieces and the ear bands. In this way, under the cooperation of the mask sheet supply part and the ear belt supply part, the mask sheets and the ear belts corresponding in position form a group, and a plurality of groups of mask sheets and ear belts continuously pass through the plane section on the upper side of the annular steel belt one by one and move along the annular steel belt 11, so that the ultrasonic device 13 realizes the continuous dynamic welding of the mask sheets and the ear belts. That is to say, the whole welding process is completed automatically, and the ultrasonic welding between the front and back two groups of mask sheets and the ear belts does not need to stay for waiting and always keeps the state of high-speed forward conveying and moving. Since there is a covering distance of the ultrasonic waves during the passage of the flat section of the upper side of the annular steel strip 11, the time for the passage of this distance is sufficient for the mask sheet to complete the welding with the ear strip. The welding is continuous in the whole process, and when the upper group of mask sheets and the ear belts are welded on the plane section of the upper side of the annular steel belt 11, the lower group of mask sheets and the ear belts are immediately in the welding range of the plane section of the upper side of the annular steel belt 11. That is, the circular steel belt 11 capable of moving circularly is used to form a dynamic steel belt part, the traditional static waiting ultrasonic welding process is changed into a dynamic moving continuous welding process, waiting is not needed, and the production efficiency is greatly improved.

The core of the high-speed ultrasonic welding method for the ear band of the mask lies in a dynamic welding mode, so that the ultrasonic welding process does not need to stay for waiting, and the production effect is improved. In the present embodiment, the dynamic welding part 1 is formed by the annular steel band 11, the steel band wheel set 12 and the ultrasonic device 13, and the mask sheet supply part 2 and the ear band supply part 3 are matched to realize the automatic supply of the mask sheet and the ear band, and then the dynamic welding part 1 performs the dynamic welding. Wherein, gauze mask piece supply part 2, ear area supply part 3 can have multiple structural style to realize, preferably adopt the endless continuous supply mode, utilize endless mechanism promptly, get the material feed, improve the operating efficiency. In the following, the present embodiment will provide a preferred embodiment of the mask sheet supply part 2 and the ear band supply part 3 which are designed autonomously, but not exclusively.

Referring to fig. 1 to 30, the present embodiment will be described next with reference to a mask ear band high-speed ultrasonic welding apparatus, which can be used to implement the above-described mask ear band high-speed ultrasonic welding method.

The ear-covering belt high-speed ultrasonic welding equipment comprises a dynamic welding part 1, a mouth covering sheet supply part 2 and an ear belt supply part 3, wherein the dynamic welding part 1 comprises an annular steel belt 11, a steel belt wheel set 12 and an ultrasonic device 13, the annular steel belt 11 can circularly move under the cooperation of the steel belt wheel set 12, and the ultrasonic device 13 is positioned on the inner side of the annular steel belt 11 and corresponds to a plane section on the upper side of the annular steel belt 11; the mask sheet supply part 2 can continuously supply mask sheets to the dynamic welding part 1; the ear band supply portion 3 can continuously supply the ear band to the dynamic welding portion 1.

Specifically, referring to fig. 1 to 2, the dynamic welding part 1 includes two sets, which are located at left and right sides of the mask sheet supply part 2 and respectively correspond to edge positions of left and right side portions of the mask sheet, and the ear band supply part 3 also includes two sets, which are located at left and right sides of the mask sheet supply part 2 and respectively correspond to edge positions of left and right side portions of the mask sheet. It should be noted here that the mask has two left and right ear belts, that is, the left and right sides of the mask sheet need to be ultrasonically welded, and the better mode is to perform ultrasonic welding on the ear belts on the left and right sides of the mask sheet, so that the space and time of the equipment can be saved, and the layout of the equipment is more reasonable. The equipment can adopt the overall arrangement mode of bilateral symmetry basically, and the gauze mask piece supplies the part and is located the centre, and one end corresponds gauze mask piece input, and the other end is the output that corresponds finished product gauze mask (the gauze mask piece after having welded the ear area promptly), and two sets of dynamic welding parts 1 are located the left and right both sides of gauze mask piece supply part 2 respectively, and two sets of ear areas supply part 3 also are located the left and right both sides of gauze mask piece supply part 2 respectively, and the cooperation will be left and right both ears area dynamic welding to the gauze mask piece. The layout of the device can be seen in fig. 1 to 2.

Specifically, referring to fig. 3 to 8, the dynamic welding part 1 further includes a welding mounting seat 14 (or referred to as a mounting frame), the steel belt wheel set 12 is disposed at a side portion of the welding mounting seat 14, and includes four steel belt wheels distributed in a square shape, the annular steel belt 11 is sleeved on the four steel belt wheels, and is driven by the steel belt wheels to circularly move in a shape like a Chinese character 'kou'; the ultrasonic device 13 is arranged on the side of the welding installation seat 14 and is positioned between the four steel belt wheels. It should be noted that, the steel belt wheel set 12 adopts four steel belt wheels and is in a square layout manner, which is a preferred embodiment, and the middle of the steel belt wheel set can be vacated to install the ultrasonic device 13; in addition, if two steel belt wheels or even six steel belt wheels are adopted, the circular steel belt can move circularly, and the plane section with the upper side is matched with an ultrasonic device for ultrasonic welding.

Specifically, referring to fig. 6 to 8, two sets of dynamic welding portions 1 share the same welding mount 14, and the annular steel strips 11, the steel strip wheel sets 12 and the ultrasonic devices 13 of the two sets of dynamic welding portions 1 are respectively arranged on two sides of the welding mount 14; the middle position of the welding installation seat 14 is provided with a steel belt wheel driving shaft 15, the steel belt wheel driving shaft 15 is connected with the steel belt wheel groups 12 on the left side and the right side, and the steel belt wheel driving shaft 15 is connected with a power input end, so that the steel belt wheel groups 12 on the left side and the right side are synchronously driven, and the annular steel belts 11 on the left side and the right side are driven to synchronously and circularly move.

Specifically, the upper end face of the ultrasonic generator of the ultrasonic device 12 is in a long strip shape and is closely attached to the inner side face of the upper plane section of the annular steel strip 11, so that the coverage range of the ultrasonic action is within a section of the length of the upper plane section of the annular steel strip 11. It should be noted that, because the upper end face of the ultrasonic generator of the ultrasonic device 13 has a coverage with a certain length, so that the upper end face of the plane section on the upper side of the annular steel strip 11 is a coverage of ultrasonic waves within a certain distance, and is matched with the circular motion of the annular steel strip 11, after the end parts of the two ends of the ear band are aligned with the edge positions of the side parts of the mask sheet and pressed against the surface of the annular steel strip 11, in the process of moving along the annular steel strip 11 and passing through the plane section on the upper side of the annular steel strip, the ultrasonic welding is realized through the coverage of the ultrasonic waves.

Specifically, referring to fig. 3 to 4, the mask sheet supply part 2 includes a mask sheet conveying belt 21 and a conveying belt driving device 22, the mask sheet conveying belt 21 is provided with a plurality of mask sheet placing positions 23 at even intervals, the mask sheet conveying belt 21 corresponds to the endless steel belt 11 of the dynamic welding part 1, the mask sheets can be taken from the mask sheet input end and conveyed to the dynamic welding part 1 one by one continuously, and after the mask sheets enter the range of the plane section of the upper side of the endless steel belt 11, the edge position of the side part of the mask sheet corresponds to the plane section of the upper side of the endless steel belt 11 and moves along with the endless steel belt 11. Mask piece conveyer belt 21 is the annular conveyer belt of overall arrangement from top to bottom, the plane section of the upside of mask piece conveyer belt 11, pass between the plane section of the upside of two sets of dynamic welding part's annular steel band 11, that is to say, mask piece conveyer belt 21 is taking the in-process that the mask piece carried forward, can make the border position of mask piece both sides portion follow respectively left and right both sides the plane section of the 11 upsides of annular steel band pass through (paste the surface at the annular steel band, follow the plane section removal of annular steel band upside, until the plane section of process annular steel band upside).

In addition, the mask sheet conveying belt 21 may be a single conveying belt, or may be a plurality of or multiple conveying belts. Moreover, the matched guide conveying belt of the guide sections can be added at the front end and the rear end of the mask piece conveying belt; no matter how the structure is changed, the final purpose is to take mask pieces from the input end of the mask piece and continuously convey the mask pieces to the dynamic welding part one by one, after the mask pieces enter the range of the plane section of the upper side of the annular steel strip, the edge position of the side part of the mask piece corresponds to the plane section of the upper side of the annular steel strip and moves along with the annular steel strip, and after the ultrasonic welding is finished, the finished mask is sent out and then continuously circulated.

As for the conveying belt driving device 22, a rotating roller, a belt wheel and a belt matching component are adopted, power is received from a power input end, and then the mask sheet conveying belt 21 is driven to move.

Specifically, referring to fig. 9 to 30, the ear belt supply portion 3 includes a loop guide rail 31, a welding head carriage mechanism 32, a loop driving mechanism 33 and a winding and cutting mechanism 34, one side of the loop guide rail 31 corresponds to the loop steel belt 11, the other side of the loop guide rail corresponds to the winding and cutting mechanism 34, the welding head carriage mechanism 32 includes a plurality of sets which are uniformly spaced on the loop guide rail 31, the welding head carriage mechanism 32 includes a carriage slide 35, a welding head assembly 36 and a clamping assembly 37, the carriage slide 35 is slidably disposed on the loop guide rail 31 and circularly moves along the loop guide rail 31 under the driving of the loop driving mechanism 33, the welding head assembly 36 presses and attaches the end portions of the two ends of the ear belt on the clamping assembly 37 and the edge position of the side portion of the mask sheet to the surface of the loop steel belt 11 when the welding head carriage mechanism 32 reaches the plane section on the upper side of the loop steel belt 11, when the welding head trolley mechanism 32 reaches the winding and cutting mechanism 34, the wire clamping assembly 37 is matched with the winding and cutting mechanism 34, the ear belt is clamped and cut off, the end parts of the two ends of the ear belt are exposed, the winding and cutting mechanism 34 comprises a wire winding assembly 38 and a wire cutting assembly 39, the ear belt is wound on the wire clamping assembly 37 by the wire winding assembly 38, and after the wire clamping assembly 37 is clamped tightly, the ear belt is cut off by the wire cutting assembly 39. More specifically, the loop guide rail 31 is in a track shape, two sides are straight line segments, two ends are semi-circular line segments, the straight line segment on one side corresponds to the annular steel strip 11 of the dynamic welding part 1, and the straight line segment on the other side corresponds to the winding and cutting mechanism 34; so that the welding head trolley mechanism 32 passes through the winding and cutting mechanism 23 and the plane section on the upper side of the annular steel belt 11 of the dynamic welding part 1 in sequence when moving on the loop guide rail 31 through the trolley slide carriage 32.

Specifically, referring to fig. 21 to 25, the loop driving mechanism 33 includes a loop belt 331, a loop belt pulley 332, and a loop connecting block 333, the loop belt 331 is disposed inside the loop guide rail 31, the loop belt pulley 332 is connected to the power input end and drives the loop belt 331 to move circularly corresponding to the loop guide rail 31, and the loop connecting block 333 includes a plurality of loop belts 331 disposed at regular intervals on the loop belt 331 and respectively connected to the trolley sliders 35 of the plurality of sets of welding head trolley mechanisms 32 on the loop guide rail 31, so that the loop belt 331 drives the plurality of sets of welding head trolley mechanisms 32 to move circularly along the loop guide rail 31 through the loop connecting block 333.

Specifically, the circumference of the loop belt wheel 332 is uniformly provided with a plurality of avoiding grooves 334, so that the loop belt wheel 332 avoids interference with the loop connecting block 333 on the loop belt 331 when driving the loop belt 331 to move circularly.

Specifically, referring to fig. 26-27, bonding tool assembly 36 includes a bonding tool mount 361, a bonding tool 362, a bonding tool slider 363, a bonding tool anchor 364, a bonding tool guide pin (not shown), a bonding tool return spring 365, and a bonding tool puck 366; the welding head 362 is arranged on a welding head fixing block 364, the welding head fixing block 364 is arranged on a welding head sliding block 363, the welding head sliding block 363 is arranged on a welding head mounting seat 361 in a vertical sliding mode, the welding head mounting seat 361 is arranged on a trolley sliding seat 35, a welding head guide pin and a welding head return spring 365 are arranged on the welding head fixing block in a matching mode, the welding head sliding block 364 is reset, a welding head pressing wheel 366 is arranged at the upper end of the welding head fixing block 364, in addition, a welding head pressing block 367 is arranged above a plane section of the upper side of the annular steel strip 11 of the dynamic welding part 1, a welding head pressing surface 368 in an ︺ shape is arranged on the lower side of the welding head pressing block 367, when the welding head trolley mechanism 32 reaches the plane section of the upper side of the annular steel strip 11, a front section inclined surface of the welding head pressing surface 368 is matched with the welding head pressing wheel 366, further pressing down a welding head fixing block 364, further pressing down a welding head 362, pressing down the end part of an ear belt on the wire clamping assembly 37 and the edge position of the side part of the mask sheet on the surface of the annular steel belt 11, matching the middle section plane of a welding head pressing surface 368 with the welding head pressing wheel 366, enabling the ear belt and the mask sheet to move along with the annular steel belt in the section range, keeping the welding head 362 in a pressing-down state all the time, matching the rear section inclined plane of the welding head pressing surface 368 with the welding head pressing wheel 366, releasing the reset force of a welding head reset spring 365, enabling the welding head pressing wheel 366 to move upwards, further enabling the welding head fixing block 364 to move upwards under the matching action of a welding head guide pin and the welding head reset spring 365, further enabling the welding head 362 to move upwards, and releasing; the welding head 362, the welding head slider 363, the welding head fixing block 364, the welding head guide pin, the welding head return spring 365 and the welding head pinch roller 366 are respectively provided with two ends corresponding to the two ends of the ear belt.

Specifically, referring to fig. 24 to 25 and fig. 28 to 30, the thread clamping assembly 37 includes a thread clamping mounting seat 371, a left clamping finger 372, a right clamping finger 373, a first clamping finger driving member 374 and a second clamping finger driving member 375, the left clamping finger 372 includes a first left clamping finger and a second left clamping finger, rear end portions of the first left clamping finger and the second left clamping finger are hinged on the left side of the front end portion of the thread clamping mounting seat, and rear end portions of the first left clamping finger and the second left clamping finger are provided with a gear 376, the right clamping finger 373 includes a first right clamping finger and a second right clamping finger, rear end portions of the first right clamping finger and the second right clamping finger are hinged on the right side of the front end portion of the thread clamping mounting seat, and rear end portions of the first right clamping finger and the second right clamping finger are provided with a gear 376, the first clamping finger driving member is disposed on the thread clamping mounting seat, and left and right sides of the front end portion are respectively provided with a rack 377 corresponding to the rear end portions of the first left clamping finger and the first right clamping finger and the first clamping finger, the second clamping hand driving piece is arranged on the wire clamping mounting seat, and the left side and the right side of the front end part are respectively provided with a rack 377 corresponding to the gears at the rear end parts of the second left clamping finger and the second right clamping finger; the first gripper driving member 374 and the second gripper driving member 375 are stacked and can relatively slide, the first gripper driving member 374 and the second gripper driving member 375 are tensioned 378 through a driving member return spring (in addition, an auxiliary spring 379 can also be arranged between the second gripper driving member 375 and the thread clamping mounting seat 371 to ensure that the second driving member roller on the second gripper driving member 375 always clings to the outer side surface of the gripper driving member guide rail, namely the driving member roller outer guide surface), the rear end of the first gripper driving member 374 is provided with a first driving member roller 37a, the rear end of the second gripper driving member 375 is provided with a second driving member roller 37b, the lower side of the loop wire guide rail 31 is provided with a gripper driving member guide rail 311, the inner side surface of the gripper driving member guide rail 311 is a driving member roller inner side 312 matched with the first driving member roller 37a of the first gripper driving member 374, an outer side surface is a driver roller outer guide surface 313 which is matched with the second driver roller 37b of the second gripper driver 375; wherein, during the cyclic movement of the welding head trolley mechanism 32 along the loop line guide rail 31, the driving member roller inner side guide surface 312 and the driving member roller inner side guide surface 313 respectively guide the first driving member roller 37a and the second driving member roller 37b to cyclically move along the gripper driving member guide track 311, the driver roller inner guide surface 312 or the driver roller outer guide surface 313 is provided with a transitional bevel 314 in a set position, so that the first and second driver rollers 37a and 37b pass the corresponding transition slopes 314, under the action of the driving member return spring 379, the first gripper driving member 374 and the second gripper driving member 375 are driven to move relatively, and then the first left clamping finger and the second left clamping finger of the left clamping hand 372 are driven to open or clamp with the first right clamping finger and the second right clamping finger of the right clamping hand 373 through the matching 376 of the rack 377 and the gear.

It should be noted that the driving member roller inner guide surface 312 or the driving member roller outer guide surface 313 is provided with a transition inclined surface 314 at a set position, where the set position is that the first clamping hand driving member 374 and the second clamping hand driving member 375 can be guided to move relatively through the corresponding transition inclined surface 314 at the position, and further the left clamping hand 372 and the right clamping hand 373 are opened before the wire clamping assembly 37 moves to the position corresponding to the wire winding assembly 38 of the wire winding and cutting mechanism 34, so that the left clamping hand 372 and the right clamping hand clamp 373 are clamped before the wire clamping assembly 37 moves to the position corresponding to the wire cutting assembly 39 of the wire winding and cutting mechanism 34, thereby matching the wire winding and cutting actions of the wire winding and cutting mechanism 34.

It should also be noted here that the weld head assembly 36 and the wire clamping assembly 37 of the weld head carriage mechanism 32 can be adjusted accordingly, depending on the situation. In this embodiment, the carriage 35 is disposed on the horn mount 361, and the wire clamp mount 371 is disposed at the bottom end of the horn mount 361.

Specifically, the driving member roller inner side guide surface 312 or the driving member roller outer side guide surface 313 is provided with a transitional inclined surface 314 before the welding head trolley mechanism 32 leaves the winding assembly 38 of the winding and cutting mechanism 34 and enters the cutting assembly 39, so that the left clamping hand 372 and the right clamping hand 373 are changed from the open state to the clamping state, and thus both ends of the ear belt are clamped (the cutting assembly is convenient to cut off the cotton thread of the ear belt, and the left clamping hand and the right clamping hand of the clamping assembly are always kept in the clamping state through the plane sections of the driving member roller inner side guide surface and the driving member roller outer side guide surface, and pass through the plane sections of the upper sides of the cutting assembly and the annular steel belt in sequence; the driving member roller inner guide surface 312 or the driving member roller outer guide surface 313 is provided with a transition inclined surface 313 after the welding head trolley mechanism 32 passes through the plane section on the upper side of the annular steel strip 11, so that the left clamping hand 372 and the right clamping hand 373 are changed from a clamping state to an opening state, the ear belts welded to the mask sheet are loosened, the next cycle is entered, and the winding assembly 38 of the winding and cutting mechanism 34 is prepared to be matched for the next winding and clamping action.

Specifically, the driving member roller inner guiding surface 312 or the driving member roller outer guiding surface 313 is also provided with a transition inclined surface 314 to adjust the opening degree and the opening angle of the left clamping hand 372 and the right clamping hand 373 in the opening state to cooperate with the winding assembly 38 for winding when the welding head trolley mechanism 32 enters the range of the winding assembly 38 corresponding to the winding and cutting mechanism 34. It should be noted that if the driving member roller inner guiding surface 312 and the driving member roller outer guiding surface 313 are provided with slope sections with the same trend at the same time at the corresponding positions (i.e. the first clamping hand driving member 374 and the second clamping hand driving member 375 move synchronously at the same time, but there is no relative movement therebetween), the opening or clamping degree of the left clamping hand 372 and the right clamping hand 373 will not change, but the left clamping hand 372 and the right clamping hand 373 will swing a certain angle to adjust the accuracy of the spatial matching between the left clamping hand 372 and the right clamping hand 373 and other mechanisms or components.

In the case of the design of the driver roller inner guide surface 312 or the driver roller outer guide surface 313 in a plane section and a transition bevel section, it should be mentioned here that the transition bevel is preferably arranged on the driver roller inner guide surface, but depending on the actual situation, the structure can be adapted accordingly and the transition bevel can also be arranged on the driver roller outer guide surface. In addition, a more scientific arrangement mode of the plane section and the transition inclined plane section is that the plane section or the transition inclined plane section is arranged at a proper position on both the driving member roller inner side guide surface 312 and the driving member roller outer side guide surface 313, and the left clamping hand 372 and the right clamping hand 373 of the wire clamping assembly 37 are opened or closed or adjusted in an opening state at a proper position through the matching of the plane sections of the inner side guide surface and the outer side guide surface and the transition inclined plane section. In addition, it should be noted that, according to the above description, it should be clear to those skilled in the art that the position, the inclination, the length, the radian, and the like of the transition slope are not invariable, and the transition slope can be adaptively designed according to the actual motion situation, and will not be described herein again.

Specifically, the wire clamping assembly 37 includes a middle wire winding pin 37c, and the middle wire winding pin 37c is disposed below the wire clamping mounting seat 371 and behind the middle position of the left clamping hand 372 and the right clamping hand 373 to cooperate with the wire winding assembly 38 of the wire winding and cutting mechanism 34 to perform wire winding. Here, the intermediate winding pin 37c is provided to facilitate winding and stroking and facilitate a thread gripping operation by a gripper. The cotton threads of the ear bands after winding are distributed in a triangular shape, so that the cotton threads can be conveniently clamped by the left clamping hand 372 and the right clamping hand 373.

Specifically, referring to fig. 13 to 16 and fig. 19 to 20, the winding assembly 38 of the winding and cutting mechanism 34 includes a winding barrel 381, a winding oscillating rod 382, a winding link 383 and a winding cam 384, wherein the winding barrel 381 is disposed at one end of the winding oscillating rod 382, the other end of the winding oscillating rod 382 is hinged to the winding and cutting mounting seat 341, one end of the winding link 383 is hinged to the middle of the winding oscillating rod 382, the other end of the winding link 383 is hinged to the winding cam 384, and the winding cam 384 is connected to a power input end; the ear cotton thread passes through the bobbin 381, the winding cam 384 drives the winding link 383 to drive the winding swing rod 382 to swing regularly, and then the bobbin 381 is driven to wind the ear cotton thread between the left clamping hand 382 and the right clamping hand 373 of the thread clamping assembly 37 and the middle winding pin 37 c. The cotton threads of the ear bands after winding are distributed in a triangular shape, so that the cotton threads can be conveniently clamped by the left clamping hand 372 and the right clamping hand 373.

Specifically, the wire cutting assembly 39 of the wire winding and cutting mechanism 34 includes a main wire cutter wheel 391, an auxiliary wire cutter wheel 392 and a cutter wheel driving gear set 393, wherein the main wire cutter wheel 391 and the auxiliary wire cutter wheel 392 are all uniformly provided with three extensions 394 around the circumference thereof, so that the cross sections of the main wire cutter wheel 391 and the auxiliary wire cutter wheel 392 are all in a "Y" scattering shape, wherein the three extensions of the main wire cutter wheel 391 are respectively provided with a blade 395, the cutter wheel driving gear set 393 is connected with a power input end and also connected with the main wire cutter wheel 391 and the auxiliary wire cutter wheel 392, so as to drive the main wire cutter wheel 391 and the auxiliary wire cutter wheel 392 to move in a mutually matched manner, so that the three extensions 394 of the main wire cutter wheel 391 and the auxiliary wire cutter wheel 392 regularly and circularly correspond, and the blade 395 on the extension 394 of the main wire cutter wheel 391 cooperates with the end surface of the extension 394 of the auxiliary wire cutter wheel 392, and the ear belt cotton threads clamped by the thread clamping components 37 of the two adjacent groups of welding head trolley mechanisms 32 are cut off at the position between the two adjacent groups of welding head trolley mechanisms 32.

The knife wheel drive gear set 393 is cooperatively engaged with the winding cam 384 such that the motion between the winding assembly 38 and the tangent assembly 39 may be engaged.

Specifically, the winding and cutting mechanism 34 further includes a winding and cutting mount 341, and the winding assembly 38 and the cutting assembly 39 are disposed on the winding and cutting mount 341.

In this embodiment, the mask ear band high-speed ultrasonic welding device further includes a general machine, various safety covers, a guard plate and other members, which are not described herein. The high-speed ultrasonic welding equipment for the mask ear band can be arranged behind a mask piece production line, and the mask piece is subjected to an automatic high-ultrasonic-speed welding ear band process to form a whole complete mask production line.

Finally, it should be noted that the high-speed ultrasonic welding device for the mask ear band necessarily further comprises a control part for controlling the operation of each part, device or each mechanism component, so as to realize the action coordination in time or space required by each step of the high-speed ultrasonic welding method for the mask ear band. The skilled person will adjust the process according to the actual production situation (e.g. production efficiency, etc.). In addition, in the above-mentioned "steel pulley driving shaft is connected to the power input end", "loop pulley is connected to the power input end", "winding cam is connected to the power input end", "knife wheel driving gear set is connected to the power input end", and even "conveyor belt driving device", each power input end (power supply) may be a relatively independent power supply mechanism (i.e. power is supplied by a relatively independent motor power assembly or cylinder power assembly, etc.), and then the coordination control is performed by the control system to achieve the coordination between the actions; in addition, each power input end can also be a total power supply end, and power is respectively transmitted to each mechanism through different transmission mechanisms, so that power supply to each mechanism is respectively realized; moreover, the single total power supply end is adopted, and then the power rotating mechanism transmits power, so that the device has the advantage that the action coordination among all mechanisms or components can well avoid errors by means of pure mechanical linkage.

The utility model discloses be not limited to above-mentioned embodiment, adopt with the same or similar technical characteristics of the above-mentioned embodiment of the utility model, and the high-speed ultrasonic welding equipment of other gauze mask ear areas that obtain all is within the protection scope of the utility model.

Claims (17)

1. A high-speed ultrasonic welding device for mask ear belts is characterized by comprising a dynamic welding part, a mask piece supplying part and an ear belt supplying part, wherein the dynamic welding part comprises an annular steel belt, a steel belt wheel set and an ultrasonic device, the annular steel belt can circularly move under the cooperation of the steel belt wheel set, and the ultrasonic device is positioned on the inner side of the annular steel belt and corresponds to a plane section on the upper side of the annular steel belt; the mask sheet supply part may continuously supply the mask sheet to the dynamic welding part; the ear band supply portion can continuously supply the ear band to the dynamic welding portion.

2. The high-speed ultrasonic welding apparatus for mask ear bands according to claim 1, wherein said dynamic welding portions comprise two sets which are located at left and right sides of the mask sheet supply portion and correspond to the edge positions of the left and right side portions of the mask sheet, respectively, and said ear band supply portions comprise two sets which are located at left and right sides of the mask sheet supply portion and correspond to the edge positions of the left and right side portions of the mask sheet, respectively.

3. The high-speed ultrasonic mask ear band welding device according to claim 2, wherein the dynamic welding part further comprises a welding mounting seat, the steel belt wheel set is arranged on the side part of the welding mounting seat and comprises four steel belt wheels which are distributed in a square shape, and the annular steel belt is sleeved on the four steel belt wheels and driven by the steel belt wheels to circularly move in a shape like a Chinese character 'kou'; the ultrasonic device is arranged on the side part of the welding mounting seat and is positioned among the four steel belt wheels.

4. The high-speed ultrasonic mask ear band welding device according to claim 3, wherein two sets of dynamic welding parts share the same welding mount, and the annular steel band, the steel band wheel set and the ultrasonic device of the two sets of dynamic welding parts are respectively arranged on two sides of the welding mount; the middle position of the welding installation seat is provided with a steel belt wheel driving shaft which is connected with the steel belt wheel groups on the left side and the right side, and the steel belt wheel driving shaft is connected with a power input end so as to synchronously drive the steel belt wheel groups on the left side and the right side and further drive the annular steel belts on the left side and the right side to synchronously and circularly move.

5. The high-speed ultrasonic welding device for mask ear bands according to claim 1, wherein the upper end face of the ultrasonic generator of the ultrasonic device is in a long strip shape and is closely attached to the inner side face of the plane section on the upper side of the annular steel band, so that the coverage of ultrasonic action is realized within a length of the plane section on the upper side of the annular steel band.

6. The high-speed ultrasonic mask ear band welding apparatus according to claim 1, wherein the mask sheet supply portion includes a mask sheet conveyor belt and a conveyor belt driving device, the mask sheet conveyor belt is provided with a plurality of mask sheet placement positions at regular intervals, the mask sheet conveyor belt corresponds to the endless steel belt of the dynamic welding portion, receives the mask sheets from the mask sheet input end and conveys the mask sheets one by one continuously to the dynamic welding portion, and after the mask sheets enter the range of the flat section of the upper side of the endless steel belt, the edge positions of the side portions of the mask sheets correspond to the flat section of the upper side of the endless steel belt and move along with the endless steel belt.

7. The mask ear belt high-speed ultrasonic welding device according to claim 1, wherein the ear belt supply part comprises a loop guide rail, a welding head trolley mechanism, a loop driving mechanism and a winding and cutting mechanism, one side of the loop guide rail corresponds to the loop steel belt, the other side of the loop guide rail corresponds to the winding and cutting mechanism, the welding head trolley mechanism comprises a plurality of groups which are uniformly arranged on the loop guide rail at intervals, the welding head trolley mechanism comprises a trolley sliding seat, a welding head assembly and a wire clamping assembly, the trolley sliding seat is arranged on the loop guide rail in a sliding manner and moves circularly along the loop guide rail under the driving of the loop driving mechanism, the welding head assembly presses and attaches the end parts of the two ends of the ear belt on the wire clamping assembly and the edge position of the side part of the mask sheet to the surface of the loop steel belt when the welding head trolley mechanism reaches the plane section of the upper side of the loop steel belt, and the wire clamping assembly presses and attaches the edge positions of the two, cooperate with wire winding thread cutting mechanism, clip the ear area and cut off, and expose the tip at ear area both ends, wire winding thread cutting mechanism includes wire winding subassembly and tangent line subassembly, wire winding subassembly is around the ear area on the thread tension subassembly, treats that the thread tension subassembly presss from both sides tightly the back, cuts off the ear area by tangent line subassembly.

8. The mask ear belt high-speed ultrasonic welding device according to claim 7, wherein the loop driving mechanism comprises a loop belt, a loop belt wheel and a loop connecting block, the loop belt is disposed inside the loop guide rail, the loop belt wheel is connected to the power input end and drives the loop belt to move circularly corresponding to the loop guide rail, the loop connecting block comprises a plurality of loop belts which are disposed at regular intervals on the loop belt and respectively connected to the trolley sliders of the plurality of sets of welding head trolley mechanisms on the loop guide rail, so that the loop belt drives the plurality of sets of welding head trolley mechanisms to move circularly along the loop guide rail through the loop connecting block.

9. The high-speed ultrasonic mask ear band welding device according to claim 8, wherein a plurality of avoiding grooves are uniformly formed in the circumference of the loop belt wheel, so that the loop belt wheel is prevented from interfering with a loop connecting block on the loop belt when the loop belt wheel drives the loop belt to move circularly.

10. The mask ear band high-speed ultrasonic welding device according to claim 7, wherein the welding head assembly comprises a welding head mounting seat, a welding head sliding block, a welding head fixing block, a welding head guide pin, a welding head return spring and a welding head pressing wheel; the welding head is arranged on a welding head fixing block, the welding head fixing block is arranged on a welding head sliding block, the welding head sliding block is arranged on a welding head mounting seat in a vertical sliding mode, the welding head mounting seat is arranged on a trolley sliding seat, a welding head guide pin and a welding head reset spring are arranged on the welding head fixing block in a matching mode, the welding head sliding block plays a role in resetting, a welding head pressing wheel is arranged at the upper end of the welding head fixing block, in addition, a welding head pressing block is arranged above a plane section of the upper side of the annular steel strip of the dynamic welding part, the lower side of the welding head pressing block is provided with a welding head pressing surface in an ︺ shape, when a welding head trolley mechanism reaches the plane section of the upper side of the annular steel strip, the front section inclined plane of the welding head pressing surface is matched with the welding head pressing wheel, the resetting force of the welding head reset, the end part of an ear belt on a wire clamping assembly and the edge position of the side part of a mask sheet are pressed and attached to the surface of an annular steel belt, the middle section plane of a welding head pressing surface is matched with a welding head pressing wheel, so that the ear belt and the mask sheet move along with the annular steel belt in the section range, the welding head is always kept in a pressing state, the rear section inclined plane of the welding head pressing surface is matched with the welding head pressing wheel, the reset force of a welding head reset spring is released, the welding head pressing wheel moves upwards, a welding head fixing block moves upwards under the matching action of a welding head guide pin and the welding head reset spring, the welding head moves upwards, and the pressing action on the ear belt and the; the welding head, the welding head sliding block, the welding head fixing block, the welding head guide pin, the welding head return spring and the welding head pressing wheel are respectively arranged at the two ends of the lug belt.

11. The high-speed ultrasonic mask ear band welding device according to claim 7, wherein the wire clamping assembly comprises a wire clamping mounting seat, a left clamping hand, a right clamping hand, a first clamping finger driving part and a second clamping finger driving part, the left clamping hand comprises a first left clamping finger and a second left clamping finger, the rear end parts of the first left clamping finger and the second left clamping finger are hinged to the left side of the front end part of the wire clamping mounting seat, the rear end parts of the first left clamping finger and the second left clamping finger are provided with gears, the right clamping hand comprises a first right clamping finger and a second right clamping finger, the rear end parts of the first right clamping finger and the second right clamping finger are hinged to the right side of the front end part of the wire clamping mounting seat, the rear end parts of the first right clamping finger and the second right clamping finger are provided with gears, the first clamping finger driving part is arranged on the wire clamping mounting seat, and the left side and the right side of the front end part are respectively provided with the first left clamping finger and the first clamping finger, The second clamping hand driving piece is arranged on the wire clamping mounting seat, and racks corresponding to the gears at the rear ends of the second left clamping finger and the second right clamping finger are respectively arranged on the left side and the right side of the front end part of the second clamping hand driving piece; the first gripper driving piece and the second gripper driving piece are arranged in a stacked mode and can slide relatively, the first gripper driving piece and the second gripper driving piece are tensioned through a driving piece reset spring, a first driving piece roller is arranged at the rear end of the first gripper driving piece, a second driving piece roller is arranged at the rear end of the second gripper driving piece, a gripper driving piece guide rail is arranged on the lower side of the loop guide rail, the inner side face of the gripper driving piece guide rail is a driving piece roller inner side guide face matched with the first driving piece roller of the first gripper driving piece, and the outer side face of the gripper driving piece guide rail is a driving piece roller outer side guide face matched with the second driving piece roller of the second gripper driving piece; wherein, at bonding tool dolly mechanism along loop guide rail cyclic motion's in-process, the inboard guide face of driving piece gyro wheel guide first driving piece gyro wheel respectively, second driving piece gyro wheel along tong driving piece guide track cyclic motion, the inboard guide face of driving piece gyro wheel or the inboard guide face of driving piece gyro wheel are equipped with the transition inclined plane at the settlement position to make first driving piece gyro wheel, second driving piece gyro wheel through the transition inclined plane that corresponds, under driving piece reset spring's effect, drive first tong driving piece, second tong driving piece relative movement, and then through the cooperation of rack and gear, drive left clamp finger of left tong, the left clamp finger of second and the first right clamp finger of right tong, the right clamp finger of second opens or presss from both sides tightly.

12. The high-speed ultrasonic mask ear band welding device according to claim 11, wherein the inner guide surface of the driving member roller or the outer guide surface of the driving member roller is provided with a transition slope before the welding head carriage mechanism leaves the wire winding assembly of the wire winding and cutting mechanism and enters the wire cutting assembly, so that the left and right clamping hands are changed from the open state to the clamping state to clamp both ends of the ear band, and the inner guide surface of the driving member roller or the outer guide surface of the driving member roller is provided with a transition slope after the welding head carriage mechanism passes through the plane section on the upper side of the annular steel strip, so that the left and right clamping hands are changed from the clamping state to the open state, and the ear band welded to the mask piece is loosened to enter the next cycle and is ready to be matched with the wire winding assembly of the wire winding and cutting mechanism to perform the next wire winding and clamping operation.

13. The high-speed ultrasonic mask ear band welding device according to claim 12, wherein the inner guide surface of the driving member roller or the outer guide surface of the driving member roller is also provided with a transition slope when the welding head trolley mechanism enters the range of the wire winding assembly corresponding to the wire winding and cutting mechanism, so as to adjust the opening degree and the opening angle of the left clamping hand and the right clamping hand in the opening state, and perform wire winding in cooperation with the wire winding assembly.

14. The high-speed ultrasonic mask ear band welding device according to claim 11, wherein the wire clamping assembly comprises a middle wire winding pin member, and the middle wire winding pin member is disposed below the wire clamping mounting seat and behind the middle position of the left hand clamp and the right hand clamp so as to cooperate with the wire winding assembly of the wire winding and cutting mechanism to wind wires.

15. The mask ear belt high-speed ultrasonic welding device according to claim 13, wherein the winding assembly of the winding and cutting mechanism comprises a winding drum, a winding swing rod, a winding connecting rod and a winding cam, the winding drum is arranged at one end of the winding swing rod, the other end of the winding swing rod is hinged, one end of the winding connecting rod is hinged with the middle part of the winding swing rod, the other end of the winding connecting rod is hinged with the winding cam, and the winding cam is connected with a power input end; the ear cotton threads penetrate through the winding drum, the winding cam drives the winding connecting rod to drive the winding oscillating rod to regularly swing, and then the winding drum is driven to wind the ear cotton threads between the left clamping hand and the right clamping hand of the thread clamping assembly and the middle winding pin piece.

16. The high-speed ultrasonic mask ear band welding device according to claim 15, wherein the wire-cutting assembly of the wire-winding and wire-cutting mechanism comprises a main wire-cutting cutter wheel, an auxiliary wire-cutting cutter wheel and a cutter wheel driving gear set, wherein the main wire-cutting cutter wheel and the auxiliary wire-cutting cutter wheel are uniformly provided with three extending portions on the circumference, so that the cross sections of the main wire-cutting cutter wheel and the auxiliary wire-cutting cutter wheel are in a Y-shaped scattering shape, wherein the three extending portions of the main wire-cutting cutter wheel are respectively provided with a blade, the cutter wheel driving gear set is connected with a power input end and also connected with the main wire-cutting cutter wheel and the auxiliary wire-cutting cutter wheel, so as to drive the main wire-cutting cutter wheel and the auxiliary wire-cutting cutter wheel to move in a mutually matched manner, so that the three extending portions of the main wire-cutting cutter wheel and the auxiliary wire-cutting cutter wheel regularly and circularly correspond, and the blades on, and at the position between the two adjacent groups of welding head trolley mechanisms, the ear belt cotton threads are cut off after being clamped by the thread clamping components of the two adjacent groups of welding head trolley mechanisms.

17. The mask ear band high speed ultrasonic welding apparatus of claim 16, wherein said wire winding and cutting mechanism further comprises a wire winding and cutting mount, said wire winding assembly and said cutting assembly being disposed on said wire winding and cutting mount.

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