CN113370536A

CN113370536A - Multi-station bilateral welding equipment and method for mask ear ropes

Info

Publication number: CN113370536A
Application number: CN202110717407.6A
Authority: CN
Inventors: 萧山
Original assignee: Guangzhou Xingshi Machinery Manufacture Co Ltd
Current assignee: Guangzhou Xingshi Machinery Manufacture Co Ltd
Priority date: 2021-06-28
Filing date: 2021-06-28
Publication date: 2021-09-10

Abstract

The invention discloses multi-station bilateral welding equipment and a method for mask ear ropes. The method comprises the steps of simultaneously carrying out pulling, clamping, cutting, moving and welding actions on the ear ropes on two sides of a conveying belt of a mask body through an ear rope cutting and pulling mechanism, an ear rope rotating and clamping mechanism and an ear rope welding mechanism on each mask processing station. The device has a compact structure, can realize the simultaneous processing of the ear ropes of the double-side mask on a plurality of stations, and effectively improves the production efficiency.

Description

Multi-station bilateral welding equipment and method for mask ear ropes

Technical Field

The invention relates to the technical field of mask processing, in particular to multi-station bilateral welding equipment and a method for mask ear cords.

Background

In mask production (especially production of N95 masks), unwinding, cutting and clamping of ear ropes are the most complicated processes, and therefore mask ear rope welding is also a key process influencing mask production speed. At present, the welding of the mask ear rope is mainly processed by the following steps: and clamping and cutting off one lug rope each time, then bending and positioning in a U shape, welding, and then clamping, cutting off, welding and the like of the next lug rope by the mechanism after welding. In the process, an ear rope pulling mechanism is usually arranged in the ear rope unreeling mechanism, the ear rope is pulled out from a material pile or a material coil of raw materials according to a set length, two ends of the ear rope are clamped and are interrupted according to the set length, then the two ends of the ear rope are bent to positions needing to be welded on the mask body through a U-shaped bending mechanism, and after the ear rope is unreeled and positioned, the welding of the ear rope is completed through an electric welding mechanism; after all the above actions are completed, the next ear rope can be clamped, cut off, welded and the like. Because the component part of this equipment is numerous, the mechanism is huge, lead to respectively arranging the equipment of a set of symmetry and carrying out simultaneous processing in the both sides of same gauze mask, if the ear rope of welding a plurality of gauze masks simultaneously, then the equipment that this technology corresponds will be very huge, the installation space that needs is also very big, this can lead to spare and accessory parts numerous, the use amount of action cylinder is also very many, break down extremely easily, the fault point increases in a large number, often take place the shut down phenomenon, consequently, can not effectively promote production efficiency, therefore, on the basis of current equipment, only rely on the form that increases the station alone obviously can not promote production efficiency. Therefore, in the current production practice, as shown in fig. 1, the two ear strings 22 on the left and right sides of the same mask body 21 are still welded one after another, and in this case, the processing speed is slow, and the market demand is difficult to adapt.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provides the multi-station bilateral welding equipment for the mask ear ropes.

The invention also aims to provide a multi-station double-side welding method for the mask ear ropes, which is realized by the equipment.

The technical scheme of the invention is as follows: the utility model provides a two side welding equipment of multistation that gauze mask ear rope was used, cuts off pull-out mechanism, the rotatory fixture of ear rope and ear rope welding mechanism including gauze mask body conveyer belt, ear rope, and equipment middle part is located to gauze mask body conveyer belt, and the upper and lower both sides of gauze mask body conveyer belt are located to ear rope welding mechanism, and the left and right sides symmetry of gauze mask body conveyer belt is equipped with at least one and cuts off pull-out mechanism and at least one and the rotatory fixture of ear rope, and the ear rope cuts off pull-out mechanism and is located the rotatory fixture below of ear rope.

The ear rope cutting and pulling mechanism comprises a pulling driving assembly, a fixed clamping assembly, a movable clamping assembly, a cutting assembly, a mounting bracket and a guide rail, wherein the guide rail is arranged on the mounting bracket, the fixed clamping assembly and the cutting assembly are arranged at one end of the guide rail, the cutting assembly is positioned at the inner side of the fixed clamping assembly, the movable clamping assembly is arranged on the guide rail and moves along the guide rail, and the pulling driving assembly is arranged on one side of the guide rail and is connected with the movable clamping assembly.

When a plurality of ear rope cutting and pulling mechanisms are arranged on the same side of the conveying belt of the mask body, a fixed clamping component, a movable clamping component, a cutting component, an installation support and a guide rail in each ear rope cutting and pulling mechanism form a cutting and pulling unit, the cutting and pulling units share one pulling driving component, the movable clamping components in the cutting and pulling units are fixedly connected, and one movable clamping component positioned on the outermost side is connected with the pulling driving component; the bottom of each ear rope cutting and pulling mechanism is also provided with a lifting mounting plate. Each cutting and pulling unit corresponds to a roll of ear rope coiled material, the fixed clamping assembly is mainly used for fixing the end part of the roll of ear rope coiled material and assisting other assemblies to fix the ear ropes if necessary to avoid falling off, the ear ropes with corresponding lengths can be pulled out from the roll of ear rope coiled material by utilizing the movement of the movable clamping assembly along the guide rail, and after the ear ropes which are pulled out are clamped by the ear rope rotating and clamping mechanism, the ear ropes are cut off from the coiled material through the cutting assembly; therefore, according to the actual demand of the number of the mask processing stations in the mask production process, each cutting and pulling unit is provided with a corresponding ear rope coiled material, the number of the ear rope coiled materials can be adjusted according to the actual demand, and the application is flexible. The lifting mounting plate can drive each lug rope cutting and pulling mechanism to carry out lifting motion, the lug rope is lifted to a proper height when needing to be matched with the lug rope rotating and clamping mechanism to clamp the lug rope, and the lug rope is lowered by a certain height when not needing to be matched with the lug rope rotating and clamping mechanism to avoid interference between the lug rope rotating and clamping mechanism and other mechanisms.

The fixed clamping assembly comprises a fixed clamping cylinder and a fixed clamping jaw, and the fixed clamping jaw is arranged at the end part of the fixed clamping cylinder; the fixed clamping cylinder is an opening and closing cylinder and drives the fixed clamping jaw to open and close so as to clamp or release the ear rope;

the cutting assembly comprises a cushion block, a cutter cylinder and a support frame, the cushion block and the cutter are arranged in opposite directions, an ear rope channel is formed between the cushion block and the cutter, the cutter is arranged at the end part of the cutter cylinder, the cutter cylinder is arranged at one side of the support frame, and a fixed clamping cylinder is arranged at the other side of the support frame; the cutting knife mechanism comprises a cutting knife cylinder, a cushion block, a cutting knife cylinder, a cutting knife and a cutting knife, wherein the cutting knife cylinder is a telescopic cylinder, and the cutting knife cylinder drives the cutting knife to approach the cushion block to cut off the ear rope after the ear rope is clamped by the ear rope rotating and clamping mechanism;

the movable clamping assembly comprises a movable clamping cylinder, a movable clamping jaw, a sliding block and a fixed supporting block, the movable clamping jaw is arranged at the end part of the movable clamping cylinder, the movable clamping cylinder is arranged on the fixed supporting block, the sliding block is arranged at the bottom of the fixed supporting block, and the sliding block is matched with the guide rail; when a plurality of cutting and pulling-out units are arranged, the fixed supporting blocks in two adjacent movable clamping components are fixedly connected, and one fixed supporting block positioned on the outermost side is connected with the driving component; the movable clamping cylinder is also an opening-closing cylinder and drives the movable clamping jaw to open and close so as to clamp or release the ear rope;

the pull-out driving component comprises a conveying belt and a conveying belt wheel which are matched, the fixed supporting block is fixedly arranged on the conveying belt, and the conveying belt wheel is externally connected with a power driving device. In the structure, the conveying belt moves back and forth, the movable clamping assemblies can be driven by the fixed supporting blocks to move back and forth along respective guide rails, and when the movable clamping assemblies clamp the lug ropes close to the fixed clamping assemblies, the movable clamping assemblies can be pulled out of the lug ropes with the set length when the movable clamping assemblies return to the other ends of the guide rails along the guide rails.

In the ear rope cutting and pulling mechanism, the guide rail is obliquely arranged relative to the conveying direction of the conveying belt of the mask body. In the structure, each ear rope cutting and pulling mechanism is obliquely arranged relative to the conveying belt of the mask body, the specific inclination angle of the ear rope cutting and pulling mechanism can be selected and adjusted according to the actual installation condition of equipment and the welding angle of the ear rope on the mask body, but each ear rope cutting and pulling mechanism is obliquely arranged, and meanwhile, the following ear rope rotating clamping mechanism is also obliquely arranged, so that the installation arrangement of each mechanism is more compact, and the floor area of the equipment is effectively reduced.

The lug rope rotating and clamping mechanism is arranged at the welding equipment, an installation frame and a movable installation plate are further arranged in the welding equipment, the movable installation plate is connected with the installation frame in a sliding mode, and the lug rope rotating and clamping mechanism is installed between the movable installation plate and the installation frame.

The rotary lug rope clamping mechanism comprises a connecting rod assembly, a first transmission gear, a second transmission gear, a first gear shaft, a second gear shaft and a pneumatic claw assembly, the first transmission gear is meshed with the second transmission gear, the first gear shaft is arranged in the middle of the first transmission gear, the second gear shaft is arranged in the middle of the second transmission gear, the peripheries of the first gear shaft and the second gear shaft are mounted on the movable mounting plate through bearings, the pneumatic claw assemblies with symmetrical structures are arranged at the lower ends of the first gear shaft and the second gear shaft respectively, and two ends of the connecting rod assembly are connected with the mounting frame and the upper end of the first gear shaft respectively. When the movable mounting plate slides relative to the mounting frame, due to distance change, the two connecting rods in the connecting rod assembly swing to drive a first gear shaft connected with the first gear shaft to rotate, and simultaneously, under the meshing action of the first transmission gear and the second transmission gear, a second gear shaft and the first gear shaft synchronously rotate in the opposite direction, so that the gas claw assemblies at the lower ends of the first gear shaft and the second gear shaft swing along with the first gear shaft and the second gear shaft; when the two air claw assemblies swing to form a straight line, the ear rope is clamped from the ear rope cutting and pulling mechanism in the state; when two gas claw subassemblies swung to form the parallel form or have certain contained angle, cooperation ear rope welding mechanism was fixed in the gauze mask body with the ear rope welding machine under this state. According to the actual demand of gauze mask processing station quantity among the gauze mask production technology, the rotatory fixture quantity of ear rope that is located the same outside of gauze mask body conveyer belt is the same with station quantity, and the equal parallel mount of the rotatory fixture of each ear rope is between removal mounting panel and installation frame.

Among the rotatory fixture of ear rope, the gas claw subassembly includes a pair of pneumatic clamping jaw, activity sloping block, sloping block ejector pin, clamping jaw spring and supplementary fixed block, and the outside of each pneumatic clamping jaw is equipped with supplementary fixed block, and the outside of each pneumatic clamping jaw is passed through the clamping jaw spring and is connected with supplementary fixed block, and the activity sloping block is located between two pneumatic clamping jaws, and activity sloping block one side is connected with the sloping block ejector pin.

The two pneumatic clamping jaws are symmetrically installed, the section of the movable inclined block is in an inverted triangle shape, the lower end of the movable inclined block is inserted between the two pneumatic clamping jaws, and the pneumatic clamping jaws and the clamping jaw springs are extruded through the inclined surfaces on the two sides, so that the two pneumatic clamping jaws are opened and closed.

When the pneumatic claw assembly is used, a mandril spring (used as a reset spring) can be arranged at the bottom of the inclined block mandril, the outer cover is arranged on the periphery of the inclined block mandril and correspondingly connected with the lower end of the first gear shaft or the second gear shaft, and the upper end of the inclined block mandril is externally connected with a pneumatic device; when the sloping block ejector rod drives the movable sloping block to move upwards, the upper parts of the two pneumatic clamping jaws are respectively closed under the action of the clamping jaw springs on the outer sides of the two pneumatic clamping jaws, so that the lower parts and the clamping end parts are in an open state; when the sloping block ejector rod drives the movable sloping block to move downwards, the upper parts of the two pneumatic clamping jaws are extruded by the movable sloping block, at the moment, the clamping jaw springs contract, the lower parts and the clamping end parts of the pneumatic clamping jaws are closed, and the ear ropes can be clamped.

Ear rope welding mechanism includes ultrasonic head, tucking cylinder and link, and the upper and lower both sides of gauze mask body conveyer belt are located relatively to ultrasonic head and tucking, and the tucking has two, and on the link was located to two tucking, link top installation tucking cylinder. After the rotatory fixture of ear rope delivered the ear rope to the position of predetermineeing of gauze mask body on, tucking cylinder drive link drove two tucking needles and pushes down simultaneously, under the ultrasonic wave effect of ultrasonic head, the both ends welded fastening of ear rope was on the gauze mask body. According to the actual demand of gauze mask processing station quantity among the gauze mask production technology, be located the same outside of gauze mask body conveyer belt, ear rope welding mechanism's quantity is the same with station quantity, is located the ear rope welding mechanism symmetrical installation of gauze mask body both sides.

Among the above-mentioned equipment structure, the gauze mask body conveyer belt then adopt with in the conventional equipment the same gauze mask body conveyer belt can.

The invention realizes a multi-station double-side welding method for a mask ear rope by the equipment, which comprises the following steps:

(1) the formed mask body is continuously conveyed by a mask body conveying belt, and an external unwinding mechanism continuously discharges ear ropes;

(2) ear rope cutting and pulling mechanisms on the mask processing stations pull out ear ropes according to preset lengths on two sides of a mask body conveying belt;

(3) ear rope rotary clamping mechanisms on all mask processing stations clamp ear ropes from the ear rope cutting and pulling mechanisms on two sides of a mask body conveying belt, the ear rope cutting and pulling mechanisms cut off the ear ropes, and parts clamped by the ear rope rotary clamping mechanisms form single independent ear ropes;

(4) the rotary clamping mechanism of the ear rope sends the ear rope to the corresponding position of the mask body on the mask body conveying belt, and the ear ropes on the two sides of the mask body are simultaneously welded and fixed on the mask body by the ear rope welding mechanism.

When the multi-station bilateral welding equipment and the method for the mask ear rope are used, the principle is as follows: the ear rope cutting and pulling mechanism, the ear rope rotating and clamping mechanism and the ear rope welding mechanism which are structurally symmetrical are respectively arranged on the two sides of the conveying belt of the mask body, so that the ear ropes can be simultaneously welded on the two sides of the mask body during mask processing, and double-side welding is realized; a plurality of groups of ear rope cutting and pulling mechanisms, ear rope rotating and clamping mechanisms and ear rope welding mechanisms are distributed on the same side of the mask body conveying belt from bottom to top, and each group corresponds to one mask processing station, so that multi-station simultaneous welding can be realized; thereby solved the problem that traditional equipment welding speed is low, can also expand the station of a certain quantity according to the actual needs of production. In addition, through reasonable distribution and structural design of each functional mechanism, the use of the actuating cylinders can be greatly reduced, and the running stability of the equipment is improved.

Compared with the prior art, the invention has the following beneficial effects:

after the multi-station double-side welding equipment and the method for the mask ear ropes are applied to a mask production line, simultaneous processing of the mask double-side ear ropes on a plurality of stations can be achieved, the problem that welding speed of traditional equipment is low is solved, production efficiency is effectively improved, and market demands are met.

In the multi-station bilateral welding equipment for the mask ear ropes, the ear rope cutting and pulling mechanism, the ear rope rotating and clamping mechanism and the ear rope welding mechanism are correspondingly distributed on two sides of the mask body conveying belt according to the number of mask processing stations, so that the stations can be expanded or reduced according to the actual needs of a mask production line, and the adjustment mode is simple and convenient; simultaneously, the central line of each mechanism is the slope form of certain contained angle for gauze mask body conveyer belt, consequently can arrange the rotatory fixture of multiunit ear rope and ear rope welding mechanism of pull-out mechanism, ear rope in less scope relatively, compares traditional equipment structure, and this equipment structure is compacter, and area is little, and equipment cost is also lower.

In the multi-station double-side welding equipment for the ear ropes of the mask, on the same side of the conveying belt of the mask body, the ear rope cutting and pulling mechanisms are driven in a linkage mode through the same group of driving mechanisms, and the ear rope rotating and clamping mechanisms are driven in a linkage mode through the same group of driving mechanisms, so that the use of a large number of actuating cylinders can be effectively reduced, and the running stability and reliability of the equipment are improved.

Drawings

Fig. 1 is a schematic diagram of the principle that ear cords on two sides of a mask body are welded in sequence.

Fig. 2 is a schematic overall structure diagram of the multi-station bilateral welding equipment for the ear rope of the mask.

Fig. 3 is a top view of the welding apparatus shown in fig. 2.

Fig. 4 is a schematic structural view of an ear cord cutting and pulling mechanism located on one side of a conveyor belt of a mask body.

Fig. 5 is a plan view of the ear cord cutting and pulling mechanism shown in fig. 4.

Fig. 6 is a schematic view of the structure of a single cutting assembly in fig. 4.

Fig. 7 is a schematic diagram showing the change of the state from the ear cord cutting and pulling mechanism of the ear cord rotary clamping mechanism to the state of the ear cord being clamped and taken to the mask body.

Fig. 8 is a top view of a variation of the structure shown in fig. 7.

Fig. 9 is a bottom view of a variation of the structure shown in fig. 7.

Fig. 10 is a schematic view showing a state change in which the ear string is changed from a straight line shape to a curved shape on the mask body when the structure shown in fig. 7 is changed.

Fig. 11 is a schematic structural diagram of a single lug rope rotary clamping mechanism.

Fig. 12 is a top view of fig. 11.

Figure 13-1 is a schematic view of a single air gripper assembly in a clamped state.

Fig. 13-2 is a cross-sectional view a-a of fig. 13-1.

Figures 13-3 are schematic views of a single gas jaw assembly in an open position.

Fig. 13-4 is a cross-sectional view B-B of fig. 13-3.

Fig. 14 is a schematic diagram of the principle of a single ear cord rotary clamping mechanism for clamping the ear cord from the ear cord cutting and pulling mechanism.

Fig. 15 is a schematic structural diagram of a single ear cord welding mechanism.

Fig. 16 is a schematic view showing the state of each mechanism when the ear cord is welded.

In the above figures, the components indicated by the respective reference numerals are as follows: a is a mask body conveying belt, b is an ear rope cutting and pulling mechanism, c is an ear rope rotating and clamping mechanism, and d is an ear rope welding mechanism; 1 is a pull-out driving component, 1-1 is a conveying belt, 1-2 is a conveying belt wheel, 2 is a fixed clamping component, 2-1 is a fixed clamping cylinder, 2-2 is a fixed clamping jaw, 3 is a movable clamping component, 3-1 is a movable clamping cylinder, 3-2 is a movable clamping jaw, 3-3 is a sliding block, 3-4 is a fixed supporting block, 4 is a cutting component, 4-1 is a cushion block, 4-2 is a cutter, 4-3 is a cutter cylinder, 4-4 is a supporting frame, 5 is an installation bracket, 6 is a guide rail, 7 is a lifting installation plate, 8 is a jacking cylinder, 9 is an installation frame, 10 is a movable installation plate, 11 is a connecting rod component, 12 is a first transmission gear, 13 is a second transmission gear, 14 is a first gear shaft, 15 is a second gear shaft, 16 is an air claw component, 16-1 is a pneumatic clamping jaw, 16-2 is a movable oblique block, 16-3 is an oblique block ejector rod, 16-4 is a clamping jaw spring, 16-5 is an auxiliary fixed block, 17 is an ultrasonic head, 18 is a pressing needle, 19 is a pressing needle cylinder, 20 is a connecting frame, 21 is a mask body, and 22 is an ear rope.

Detailed Description

The present invention will be described in further detail with reference to examples, but the embodiments of the present invention are not limited thereto.

Examples

The embodiment is a two side welding equipment of multistation that gauze mask ear rope was used, as shown in fig. 2 or fig. 3, including gauze mask body conveyer belt a, ear rope cuts off pull-out mechanism b, the rotatory fixture c of ear rope and ear rope welding mechanism d, equipment middle part is located to gauze mask body conveyer belt, ear rope welding mechanism locates the upper and lower both sides of gauze mask body conveyer belt, the left and right sides symmetry of gauze mask body conveyer belt is equipped with at least one and cuts off pull-out mechanism and at least one and rotatory fixture of ear rope, ear rope cuts off pull-out mechanism and is located the rotatory fixture below of ear rope. The concrete structure of each component mechanism is as follows:

on the same one side of gauze mask body conveyer belt, ear rope cuts off pull-out mechanism has five in this embodiment, as shown in fig. 4 or fig. 5, ear rope cuts off pull-out mechanism and includes pull-out drive assembly 1, fixed centre gripping subassembly 2, remove centre gripping subassembly 3, cut off subassembly 4, installing support 5 and guide rail 6, the guide rail is located on the installing support, fixed centre gripping subassembly and the one end of cutting off the subassembly of locating the guide rail, it is located the inboard of fixed centre gripping subassembly to cut off the subassembly, remove the centre gripping subassembly and locate on the guide rail and remove along the guide rail, pull-out drive assembly and locate guide rail one side and be connected with removing the centre gripping subassembly. The fixed clamping component, the movable clamping component, the cutting component, the mounting bracket and the guide rail in each ear rope cutting and pulling mechanism form a cutting and pulling unit, a plurality of cutting and pulling units share one pulling driving component, the movable clamping components in the cutting and pulling units are fixedly connected, and one movable clamping component positioned on the outermost side is connected with the pulling driving component; the bottom of each ear rope cutting and pulling mechanism is also provided with a lifting mounting plate 7. Each cutting and pulling unit corresponds to a roll of ear rope coiled material, the fixed clamping assembly is mainly used for fixing the end part of the roll of ear rope coiled material and assisting other assemblies to fix the ear ropes if necessary to avoid falling off, the ear ropes with corresponding lengths can be pulled out from the roll of ear rope coiled material by utilizing the movement of the movable clamping assembly along the guide rail, and after the ear ropes which are pulled out are clamped by the ear rope rotating and clamping mechanism, the ear ropes are cut off from the coiled material through the cutting assembly; therefore, according to the actual demand of the number of the mask processing stations in the mask production process, each cutting and pulling unit is provided with a corresponding ear rope coiled material, the number of the ear rope coiled materials can be adjusted according to the actual demand, and the application is flexible. The lifting mounting plate can drive each lug rope cutting and pulling mechanism to carry out lifting movement by utilizing the jacking cylinder 8 (as shown in figure 14), the lifting mounting plate rises to a proper height when needing to be matched with the lug rope rotating and clamping mechanism to clamp the lug rope, and descends to a certain height when needing not to be matched with the lug rope rotating and clamping mechanism to avoid interference between the lifting mounting plate and the lug rope rotating and clamping mechanism or other mechanisms.

The fixed clamping assembly comprises a fixed clamping cylinder 2-1 and a fixed clamping jaw 2-2, and the fixed clamping jaw is arranged at the end part of the fixed clamping cylinder; wherein, fixed centre gripping cylinder is the cylinder that opens and shuts, and the fixed clamping jaw of drive is opened and shut and is moved to realize centre gripping or relax the ear rope. As shown in fig. 6, the cutting assembly comprises a cushion block 4-1, a cutter 4-2, a cutter cylinder 4-3 and a support frame 4-4, the cushion block and the cutter are arranged oppositely, an ear rope channel is formed between the cushion block and the cutter, the cutter is arranged at the end part of the cutter cylinder, the cutter cylinder is arranged at one side of the support frame, and a fixed clamping cylinder is arranged at the other side of the support frame; the cutting device comprises a cutting blade, a cushion block, a cutting cylinder, a cutter cylinder, a cutting blade and a cutting blade, wherein the cutting blade cylinder is a telescopic cylinder, and the cutting blade drives the cutting blade to approach the cushion block through the cutting blade cylinder after an ear rope is clamped by a following ear rope rotating and clamping mechanism, so that the ear rope is cut off, and the cutting action of the ear rope is realized. The movable clamping assembly comprises a movable clamping cylinder 3-1, a movable clamping jaw 3-2, a sliding block 3-3 and a fixed supporting block 3-4, the movable clamping jaw is arranged at the end part of the movable clamping cylinder, the movable clamping cylinder is arranged on the fixed supporting block, the sliding block is arranged at the bottom of the fixed supporting block, and the sliding block is matched with the guide rail; when a plurality of cutting and pulling-out units are arranged, the fixed supporting blocks in two adjacent movable clamping components are fixedly connected, and one fixed supporting block positioned on the outermost side is connected with the driving component; wherein, remove the centre gripping cylinder also for opening and shutting the cylinder, the drive removes the clamping jaw and opens and shut the action to realize the centre gripping or relax the ear rope. The pull-out driving component comprises a conveying belt 1-1 and a conveying belt wheel 1-2 which are matched, a fixed supporting block is fixedly arranged on the conveying belt, and the conveying belt wheel is externally connected with a power driving device. In the structure, the conveying belt moves back and forth, the movable clamping assemblies can be driven by the fixed supporting blocks to move back and forth along respective guide rails, and when the movable clamping assemblies clamp the lug ropes close to the fixed clamping assemblies, the movable clamping assemblies can be pulled out of the lug ropes with the set length when the movable clamping assemblies return to the other ends of the guide rails along the guide rails.

In the ear rope cutting and pulling mechanism, the guide rail is arranged obliquely relative to the conveying direction of the mask body conveying belt. In the structure, each ear rope cutting and pulling mechanism is obliquely arranged relative to the conveying belt of the mask body, the specific inclination angle of the ear rope cutting and pulling mechanism can be selected and adjusted according to the actual installation condition of equipment and the welding angle of the ear rope on the mask body, but each ear rope cutting and pulling mechanism is obliquely arranged, and meanwhile, the following ear rope rotating clamping mechanism is also obliquely arranged, so that the installation arrangement of each mechanism is more compact, and the floor area of the equipment is effectively reduced.

As shown in fig. 7 to 9, the welding device is further provided with a mounting frame 9 and a movable mounting plate 10, the movable mounting plate is slidably connected with the mounting frame, and the lug rope rotating and clamping mechanism is mounted between the movable mounting plate and the mounting frame.

The rotary lug rope clamping mechanism comprises a connecting rod assembly 11, a first transmission gear 12, a second transmission gear 13, a first gear shaft 14, a second gear shaft 15 (shown in figure 11 or figure 12) and a pneumatic claw assembly 16, wherein the first transmission gear is meshed with the second transmission gear, the first gear shaft is arranged in the middle of the first transmission gear, the second gear shaft is arranged in the middle of the second transmission gear, the peripheries of the first gear shaft and the second gear shaft are both installed on a movable installation plate through bearings, the pneumatic claw assemblies with symmetrical structures are respectively arranged at the lower ends of the first gear shaft and the second gear shaft, and two ends of the connecting rod assembly are respectively connected with the upper ends of an installation frame and the first gear shaft. When the movable mounting plate slides relative to the mounting frame, due to distance change, the two connecting rods in the connecting rod assembly swing to drive a first gear shaft connected with the first gear shaft to rotate, and simultaneously, under the meshing action of the first transmission gear and the second transmission gear, a second gear shaft and the first gear shaft synchronously rotate in the opposite direction, so that the gas claw assemblies at the lower ends of the first gear shaft and the second gear shaft swing along with the first gear shaft and the second gear shaft; when the two air claw assemblies swing to form a straight line, the ear rope is clamped from the ear rope cutting and pulling mechanism in the state; when the two air claw assemblies swing to form a parallel shape or have a certain included angle, the ear rope welding machine is fixed on the mask body by matching with the ear rope welding mechanism under the state (the process is shown in fig. 10). According to the actual demand of gauze mask processing station quantity among the gauze mask production technology, the rotatory fixture quantity of ear rope that is located the same outside of gauze mask body conveyer belt is the same with station quantity, and the equal parallel mount of the rotatory fixture of each ear rope is between removal mounting panel and installation frame. As shown in fig. 13-1 to 13-4, the pneumatic claw assembly comprises a pair of pneumatic clamping claws 16-1, a movable inclined block 16-2, an inclined block ejector rod 16-3, a clamping claw spring 16-4 and an auxiliary fixing block 16-5, wherein the outer side of each pneumatic clamping claw is provided with the auxiliary fixing block, the outer side of each pneumatic clamping claw is connected with the auxiliary fixing block through the clamping claw spring, the movable inclined block is arranged between the two pneumatic clamping claws, and one side of the movable inclined block is connected with the inclined block ejector rod. The two pneumatic clamping jaws are symmetrically installed, the section of the movable inclined block is in an inverted triangle shape, the lower end of the movable inclined block is inserted between the two pneumatic clamping jaws, and the pneumatic clamping jaws and the clamping jaw springs are extruded through the inclined surfaces on the two sides, so that the two pneumatic clamping jaws are opened and closed. When the pneumatic claw assembly is used, a mandril spring (used as a reset spring) can be arranged at the bottom of the inclined block mandril, the outer cover is arranged on the periphery of the inclined block mandril and correspondingly connected with the lower end of the first gear shaft or the second gear shaft, and the upper end of the inclined block mandril is externally connected with a pneumatic device; when the sloping block ejector rod drives the movable sloping block to move upwards, the upper parts of the two pneumatic clamping jaws are respectively closed under the action of the clamping jaw springs on the outer sides of the two pneumatic clamping jaws, so that the lower parts and the clamping end parts are in an open state; when the sloping block ejector rod drives the movable sloping block to move downwards, the upper parts of the two pneumatic clamping jaws are extruded by the movable sloping block, at the moment, the clamping jaw springs contract, the lower parts and the clamping end parts of the pneumatic clamping jaws are closed, and the ear ropes can be clamped.

As shown in fig. 15, the ear cord welding mechanism includes an ultrasonic head 17, two pressing pins 18, two pressing pins 19 and a connecting frame 20, the ultrasonic head and the pressing pins are disposed on the upper and lower sides of the mask body conveyor belt, the two pressing pins are disposed on the connecting frame, and the pressing pin cylinder is mounted on the top of the connecting frame. After the rotatory fixture of ear rope delivered the ear rope to the position of predetermineeing of gauze mask body on, tucking cylinder drive link drove two tucking needles and pushes down simultaneously, under the ultrasonic wave effect of ultrasonic head, the both ends welded fastening of ear rope was on the gauze mask body. According to the actual demand of gauze mask processing station quantity among the gauze mask production technology, be located the same outside of gauze mask body conveyer belt, ear rope welding mechanism's quantity is the same with station quantity, is located the ear rope welding mechanism symmetrical installation of gauze mask body both sides.

In this embodiment, the multi-station double-side welding method for the mask ear rope is implemented by the above-mentioned equipment, and includes the following steps:

(3) the ear rope cutting and pulling mechanism on each mask processing station clamps the ear rope from the ear rope cutting and pulling mechanism under the coordination of integral jacking of the ear rope cutting and pulling mechanism on both sides of the conveying belt of the mask body, the ear rope cutting and pulling mechanism cuts off the ear rope, and the part clamped by the ear rope rotating and clamping mechanism forms a single independent ear rope;

As mentioned above, the present invention can be better realized, and the above embodiments are only preferred embodiments of the present invention, and are not intended to limit the scope of the present invention; all equivalent changes and modifications made according to the present disclosure are intended to be covered by the scope of the claims of the present invention.

Claims

1. The utility model provides a two side welding equipment of multistation that gauze mask ear rope was used, a serial communication port, including gauze mask body conveyer belt, ear rope cut off pull-out mechanism, the rotatory fixture of ear rope and ear rope welding mechanism, equipment middle part is located to gauze mask body conveyer belt, and ear rope welding mechanism locates the upper and lower both sides of gauze mask body conveyer belt, and the left and right sides symmetry of gauze mask body conveyer belt is equipped with at least one and cuts off pull-out mechanism and at least one and rotatory fixture of ear rope, and ear rope cuts off pull-out mechanism and is located the rotatory fixture below of ear rope.

2. The multi-station double-side welding equipment for the mask ear rope according to claim 1, wherein the ear rope cutting and pulling mechanism comprises a pulling driving assembly, a fixed clamping assembly, a movable clamping assembly, a cutting assembly, a mounting bracket and a guide rail, the guide rail is arranged on the mounting bracket, the fixed clamping assembly and the cutting assembly are arranged at one end of the guide rail, the cutting assembly is positioned at the inner side of the fixed clamping assembly, the movable clamping assembly is arranged on the guide rail and moves along the guide rail, and the pulling driving assembly is arranged at one side of the guide rail and is connected with the movable clamping assembly.

3. The multi-station double-side welding equipment for the mask ear ropes according to claim 2, wherein when a plurality of ear rope cutting and pulling mechanisms are arranged on the same side of the mask body conveyor belt, a fixed clamping assembly, a movable clamping assembly, a cutting assembly, a mounting bracket and a guide rail in each ear rope cutting and pulling mechanism form a cutting and pulling unit, the cutting and pulling units share one pulling driving assembly, the movable clamping assemblies in the cutting and pulling units are fixedly connected, and one movable clamping assembly positioned on the outermost side is connected with the pulling driving assembly; the bottom of each ear rope cutting and pulling mechanism is also provided with a lifting mounting plate.

4. The multi-station double-side welding equipment for the mask ear ropes according to claim 3, wherein the fixed clamping assembly comprises a fixed clamping cylinder and a fixed clamping jaw, and the fixed clamping jaw is arranged at the end part of the fixed clamping cylinder;

the cutting assembly comprises a cushion block, a cutter cylinder and a support frame, the cushion block and the cutter are arranged in opposite directions, an ear rope channel is formed between the cushion block and the cutter, the cutter is arranged at the end part of the cutter cylinder, the cutter cylinder is arranged at one side of the support frame, and a fixed clamping cylinder is arranged at the other side of the support frame;

the movable clamping assembly comprises a movable clamping cylinder, a movable clamping jaw, a sliding block and a fixed supporting block, the movable clamping jaw is arranged at the end part of the movable clamping cylinder, the movable clamping cylinder is arranged on the fixed supporting block, the sliding block is arranged at the bottom of the fixed supporting block, and the sliding block is matched with the guide rail; when a plurality of cutting and pulling-out units are arranged, the fixed supporting blocks in two adjacent movable clamping components are fixedly connected, and one fixed supporting block positioned on the outermost side is connected with the driving component;

the pull-out driving component comprises a conveying belt and a conveying belt wheel which are matched, the fixed supporting block is fixedly arranged on the conveying belt, and the conveying belt wheel is externally connected with a power driving device.

5. The multi-station double-side welding apparatus for the mask ear cords according to claim 2, wherein the guide rails of the ear cord cutting and pulling mechanism are disposed to be inclined with respect to a conveying direction of the mask body conveyor belt.

6. The multi-station double-side welding equipment for the mask ear ropes according to claim 1, wherein the ear rope rotating and clamping mechanism is further provided with a mounting frame and a moving mounting plate in the welding equipment, the moving mounting plate is slidably connected with the mounting frame, and the ear rope rotating and clamping mechanism is mounted between the moving mounting plate and the mounting frame.

7. The mask ear rope multi-station double-side welding equipment according to claim 6, wherein the ear rope rotating and clamping mechanism comprises a connecting rod assembly, a first transmission gear, a second transmission gear, a first gear shaft, a second gear shaft and a gas claw assembly, the first transmission gear is meshed with the second transmission gear, the first gear shaft is arranged in the middle of the first transmission gear, the second gear shaft is arranged in the middle of the second transmission gear, the peripheries of the first gear shaft and the second gear shaft are both mounted on the movable mounting plate through bearings, the gas claw assemblies with symmetrical structures are respectively arranged at the lower ends of the first gear shaft and the second gear shaft, and two ends of the connecting rod assembly are respectively connected with the upper ends of the mounting frame and the first gear shaft.

8. The multi-station double-side welding equipment for the mask ear rope according to claim 7, wherein in the ear rope rotating and clamping mechanism, the air claw assembly comprises a pair of pneumatic clamping jaws, a movable oblique block, an oblique block ejector rod, a clamping jaw spring and an auxiliary fixing block, the auxiliary fixing block is arranged on the outer side of each pneumatic clamping jaw, the outer side of each pneumatic clamping jaw is connected with the auxiliary fixing block through the clamping jaw spring, the movable oblique block is arranged between the two pneumatic clamping jaws, and the oblique block ejector rod is connected to one side of the movable oblique block;

the two pneumatic clamping jaws are symmetrically arranged, the section of the movable inclined block is in an inverted triangle shape, and the lower end of the movable inclined block is inserted between the two pneumatic clamping jaws.

9. The mask ear rope multi-station double-side welding equipment according to claim 1, wherein the ear rope welding mechanism comprises two ultrasonic heads, two pressing pins and a connecting frame, the ultrasonic heads and the pressing pins are arranged on the upper side and the lower side of a conveying belt of the mask body relatively, and the pressing pins are arranged on the connecting frame, and the pressing pin air cylinder is arranged at the top of the connecting frame.

10. The method for realizing the multi-station double-side welding of the mask ear rope by the equipment according to any one of claims 1 to 9 is characterized by comprising the following steps of: