CN112046019B

CN112046019B - Mask fixing band welding method

Info

Publication number: CN112046019B
Application number: CN202010715799.8A
Authority: CN
Inventors: 曾昭章
Original assignee: Suzhou Huaweinuo Intelligent Technology Co ltd
Current assignee: Suzhou Huaweinuo Intelligent Technology Co ltd
Priority date: 2020-07-23
Filing date: 2020-07-23
Publication date: 2022-07-12
Anticipated expiration: 2040-07-23
Also published as: CN112046019A

Abstract

The invention relates to a mask fixing band welding method, which comprises the following steps: step S1, the fixing belt clamping jaws clamp the fixing belt extending out of the wire hole seat and move in the direction far away from the wire hole seat, and a section of fixing belt is pulled out of two groups of fixing belt clamping jaws; step S2, after the fixing straps are pulled out to reach the preset length, two groups of wire clamping assemblies clamp two ends of one fixing strap, the fixing strap is cut off by a shearing mechanism, two groups of wire clamping assemblies are arranged at two ends of the mask model assembly, and two fixing straps are clamped synchronously; step S3, the fixing belt clamping jaws release the fixing belt, the upper clamping plate and the lower clamping plate of the wire clamping assembly drive the fixing belt to turn over towards the two sides of the mask model assembly, and the fixing belt is clamped to be attached to the mask. The welding method realizes automatic operation, reduces the labor intensity of workers, reduces the labor cost and has the characteristic of high working efficiency.

Description

Mask fixing band welding method

Technical Field

The invention relates to the technical field of mask production equipment, in particular to a mask fixing band welding method.

Background

When the mask is used in the environment polluted by respiratory infectious diseases or dust, germs, dust and the like in the air can enter the lung of a human body through breathing, so that the human body is seriously damaged, and the mask can play a certain filtering role when being worn. The gauze mask should closely laminate with the face, makes germ, dust etc. can not leak into easily, and the gauze mask is provided with the fixed band, and current gauze mask majority passes through the fixed band to fix the gauze mask on the ear, and the fixed band drops from the ear easily, influences the effect of wearing.

At present, a head-hung mask appears in the market, and two fixing bands are hung on the head and are firmly worn. The manufacturing of hanging gauze mask of head is through folding the gauze mask body, cuts out a segment fixed band earlier through the manual work, and welding mechanism will be same root fixed band welding in gauze mask body both sides. The mode has high labor cost, lower production efficiency, high working strength, repetition of mechanical type and quality problems of wrong welding, missing welding and the like without leaving attention. Therefore, the actual production requirements of enterprises cannot be met, and particularly, the efficiency of the production mode cannot be suitable for the urgent demands of the current market under the condition that the supply of the existing mask is short.

Disclosure of Invention

In order to solve the problems, the invention aims to provide a mask fixing belt welding method with high working efficiency.

In order to achieve the purpose, the invention provides the following technical scheme: a mask fixing band welding method comprises the following steps:

step S1, the fixing belt clamping jaws clamp the fixing belt extending out of the wire hole seat and move away from the wire hole seat, and a section of fixing belt is pulled out of each of the two groups of fixing belt clamping jaws;

step S2, after the fixing straps are pulled out to reach the preset length, two groups of wire clamping assemblies clamp two ends of one fixing strap, the fixing strap is cut off by a shearing mechanism, two groups of wire clamping assemblies are arranged at two ends of the mask model assembly, and two fixing straps are clamped synchronously;

and S3, releasing the fixing belt by the fixing belt clamping jaw, driving the fixing belt to turn towards the two sides of the mask model assembly by the upper clamping plate and the lower clamping plate of the wire clamping assembly, and clamping the fixing belt to tightly attach to the mask.

Step S1 specifically includes:

step S11, the telescopic cylinder drives the telescopic plate to slide along the slide rail, and the fixing belt clamping jaw is close to the wire hole seat;

step S12, a fixing belt extending out of the outer end of the wire hole seat penetrates between the two opened clamping plates, and the telescopic rod of the clamping jaw cylinder is recovered to drive the two clamping plates to clamp the fixing belt;

and step S12, the jacking cylinder lifts the fixing belt pressing plate covering the upper end of the wire hole seat, and the fixing belt clamping jaws clamp the fixing belt to return to the initial position along the sliding rail.

Step S2 specifically includes: the fixed supporting shoe of translation cylinder drive removes to being close to fixed band clamping jaw direction, and fixed band both ends are got to last clamp plate, the clamp plate clamp down of two sets of wire clamping components, and drive cylinder body control scissors is closed, cuts off the fixed band.

Step S3 specifically includes: the piston rod of upset cylinder is retrieved, and the pendulum rod drives the connecting rod and rotates 90, drives clamp plate, lower clamp plate upset 90, goes up clamp plate, lower clamp plate and pastes tightly with the gauze mask outside, and the fixed band that stretches out by upper and lower clamp plate is aimed at with gauze mask outside welding point.

The welding method further comprises the following steps: the welding cylinder pushes the guide rail seat to slide along the guide rail, and drives the welding head to be close to the welding point on the outer side of the mask to weld the fixing band and the mask.

The welding method further comprises the following steps: the conveying chain drags the mask model assembly provided with the mask to convey between the left welding assembly and the right welding assembly, and after welding is finished, the mask model assembly is conveyed towards the direction far away from the mask model assembly.

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

1. gauze mask conveying mechanism can be accurate carry the gauze mask to welding station.

2. The material clamping mechanism horizontally pulls the fixing belts, so that the pulling distances of the fixing belts are consistent, and the fixing belts with fixed distances are automatically cut off by the shearing mechanism.

3. The translation cylinder of the bending butt-joint mechanism pushes the fixed supporting block to move, the wire clamping assemblies are driven to be close to the cut fixing belts, two sets of wire clamping assemblies clamp two ends of each fixing belt, and the fixing belts are released by the fixing belt clamping jaws to complete transmission of the fixing belts.

4. The upset cylinder passes through the pendulum rod and drives the connecting rod and rotate 90, and two sets of trapping mechanism all overturn and press from both sides tight gauze mask to the gauze mask both sides that are close to welding station, realize the fixed band fifty percent discount and fixed band both ends and gauze mask both sides welding point and aim at.

5. The wire clamping assembly clamps the mask tightly and presses the fixing bands close to the outer side of the mask, and the left welding assembly and the right welding assembly are arranged oppositely and used for welding the fixing bands on two sides of the mask.

6. The gauze mask of the good fixed band of welding is exported by gauze mask conveying mechanism to the direction of keeping away from the welding station, and the gauze mask is not in the clamping state, conveniently takes off.

7. Two sets of butt joint subassemblies of bending are the square with left and right welding subassembly and arrange, and is rationally distributed, can realize automatic operation, and production efficiency is high.

Drawings

Fig. 1 is a schematic view of the overall structure of the mask fixing band welding device of the present invention;

FIG. 2 is a schematic view of the overall structure of the mask conveying mechanism and the welding support table in FIG. 1;

FIG. 3 is an enlarged schematic view of the area A in FIG. 2;

FIG. 4 is a schematic structural view of the welding mechanism and the shearing mechanism in FIG. 1;

FIG. 5 is a schematic structural view of the material clamping mechanism in FIG. 1;

FIG. 6 is a schematic structural view of a clamping jaw and a clamping jaw cylinder of the fixing belt in FIG. 5;

FIG. 7 is a schematic view of a portion of the feeding mechanism shown in FIG. 4;

FIG. 8 is a schematic structural view of the bending and docking mechanism in FIG. 1;

FIG. 9 is an enlarged view of the structure at B in FIG. 8;

FIG. 10 is a schematic view of the upper and lower clamping plates of FIG. 8;

FIG. 11 is a schematic diagram showing the upper clamping plate and the lower clamping plate of FIG. 8 in a turned state;

fig. 12 is a schematic view of the welded mask structure of the mask fixing band welding device according to the present invention;

fig. 13 is a block diagram of the mask fixing band welding method of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 13, the present invention is a mask fixing band welding device, which includes a mask conveying mechanism 1, welding support platforms 2 fixed on two sides of the mask conveying mechanism 1, a welding mechanism 3 disposed on the welding support platforms 2, a material clamping mechanism 4 disposed below the welding mechanism 3, a feeding mechanism 5 for conveying fixing bands, a shearing mechanism 6 disposed near the feeding mechanism 5, and a bending and abutting mechanism 7.

Referring to fig. 1 and 2, the mask conveying mechanism 1 includes a frame 11, a conveying chain 12, a power assembly 13 for driving the conveying chain 12 to rotate on the frame 11, and a plurality of mask model assemblies 14 fixed to the conveying chain 12 and arranged at equal intervals.

Referring to fig. 2, the power assembly 13 includes a first motor, a driving wheel, a driven wheel, a belt, a rotating shaft 135 and a gear 136, the belt is sleeved on the periphery of the driving wheel and the driven wheel, two ends of the rotating shaft 135 are connected with the frame 11 through a bearing, the driven wheel is sleeved on one end of the rotating shaft 135 and drives the rotating shaft 135 to rotate, and the gear 136 is sleeved on the rotating shaft 135 and is engaged with the conveying chain 12.

Referring to fig. 2, the mask model assembly 14 includes a base plate 141, cam followers 142 fixed to both ends of the base plate 141, wear strips 143 provided at both ends of the base plate 141, a fixing plate 144 fixed to the base plate 141, and a model plate 145 installed at an upper end of the fixing plate 144. Specifically, the wear-resistant strip 143 is fixed on the frame 11, and the conveying chain 12 drives the bottom plate 141 to convey forward, while the cam follower 142 slides along the wear-resistant strip 143. The mask is covered on the model plate 145, and the mask without the fixing band is conveyed to the welding support platform 2 by the model plate 145. Referring to fig. 12, the mask includes a mask body 101 and a fixing band 102 welded to the mask body 101, and the same fixing band 102 is welded to both sides of the mask body 101.

Referring to fig. 3, the welding support platform 2 comprises a left support platform 21 and a right support platform 22 which are located on two sides of the conveying chain 12, and a protection cover 23 is arranged on each of the left support platform and the right support platform, so that influence on people caused by the welding process is avoided.

The welding mechanism 3 includes a left welding unit provided on the left support base 21 and a right welding unit provided on the right support base 22. The left welding assembly and the right welding assembly are oppositely arranged and used for welding fixing bands on two sides of the mask.

The left and right welding assemblies each include two transducers 31, a welding head 32 fixed to a front end of each transducer 31, a transducer holder 33 for fixing the two transducers 31, a welding cylinder (not shown) connected to the transducer holder 33, a rail seat 35 fixed to a bottom of the transducer holder 33, and a rail 36 disposed on a surface of the welding support table 2.

Referring to fig. 4, the transducer 31 is horizontally fixed to a transducer holder 33. In order to protect the transducer 31 and the welding head 32, the left welding assembly and the right welding assembly are both provided with the buffer assembly 30, the buffer assembly 30 comprises two groups of spring rods 331 which are horizontally arranged on the transducer fixing frame 33, each group of spring rods 331 comprises 2 spring rods, end sleeves 332 are fixed at the front ends of the spring rods 331, and the 2 spring rods 331 are connected to the upper ends and the lower ends of the end sleeves 332. The spring rod 331 is sleeved with a spring 333, and two ends of the spring 333 are abutted against the end sleeve 332 and the transducer fixing frame 33. End cap 332 is sleeved over transducer 31.

The output end of the welding cylinder is connected with the transducer fixing frame 33, the guide rail seat 35 is connected on the guide rail 36 in a sliding mode, and the welding cylinder pushes the guide rail seat 35 to slide back and forth on the guide rail 36, so that the welding head 32 is close to or far away from the mask model assembly 14.

Referring to fig. 5, the clamping mechanism 4 is fixed on the left support platform 21 and located below the left welding assembly, and the clamping mechanism 4 includes a fixed band clamping jaw 41, a clamping jaw cylinder 42 connected to the fixed band clamping jaw 41, an expansion plate 43 for fixing the clamping jaw cylinder 42, a sliding block 44 fixed at the bottom of the expansion plate 43, and a sliding rail 45 slidably connected to the sliding block 44.

Referring to fig. 6, the fixing band jaw 41 includes a pair of clamping plates 411, a pair of driving blocks 412 connected to the pair of clamping plates 411, and a connecting plate 413 fixed to an inner side of the driving blocks 412. The front end of the clamping jaw air cylinder 42 is provided with a straight groove 421, and the clamping jaw air cylinder 42 is provided with an expansion link 422 positioned in the straight groove 421. One end of the driving block 412 is fixed with the clamping plate 411, and the other end is installed in the linear groove 421 and is connected with the clamping jaw air cylinder 42 in a shaft mode. Two connecting plates 413 at the inner sides of the pair of moving blocks 412 are both coupled with the front ends of the telescopic rods 422. The telescopic link 422 of clamping jaw cylinder 42 stretches out forward, and two drive the front end of piece 412 and open, drive two splint 411 and open for the fixed band releases, and the telescopic link 422 of clamping jaw cylinder 42 is retrieved, drives two splint 411 and presss from both sides tight fixed band.

The slide rail 45 is fixed on the left support platform 21, the clamping jaw air cylinder 42 is fixed at the front end of the expansion plate 43, the tail end of the expansion plate 43 is connected with an expansion air cylinder (not shown), the expansion air cylinder (not shown) drives the expansion plate 43 to slide back and forth on the slide rail 45, and the fixing belt clamping jaw 41 is close to or far away from the feeding mechanism 5

Referring to fig. 4 and 7, the feeding mechanism 5 is fixed on the right support platform 22 and located below the right welding assembly, and the feeding mechanism 5 includes a pair of wire hole seats 51, a fixed belt pressing plate 52 covering the upper ends of the pair of wire hole seats 51, a jacking cylinder 53 disposed between the pair of wire hole seats 51 and connected to the fixed belt pressing plate 52, a first wire passing wheel 54 disposed behind the pair of wire hole seats 51, and a wire passing wheel fixing plate 55 fixed outside the wire hole seats 51.

Referring to fig. 7, the wire hole seat 51 has a wire groove 511, and the fixing band passes through the wire groove 511 and is pressed by the fixing band pressing plate 52. When the fixing band clamping jaw 41 is close to the wire hole seat 51 and clamps the free end of the fixing band, the jacking cylinder 53 lifts the fixing band pressing plate 52, the fixing band clamping jaw 41 moves towards the direction far away from the wire hole seat 51 and pulls out a section of fixing band, and then the fixing band pressing plate 52 moves downwards to press the fixing band in the wire slot 511 again for pulling wire next time.

Referring to fig. 3, the feeding mechanism 5 further includes a strap primary coil 56, a strap primary coil support bracket 57 for fixing the strap primary coil 56, a second motor 58 connected to the strap primary coil 56, and a plurality of second wire passing wheels 59 fixed to the strap primary coil support bracket 57. The second motor 58 controls the strap female roll 56 to discharge, the strap released from the strap female roll 56 is sent to the first wire passing wheel 54 behind the wire hole seat 51 by bypassing the plurality of second wire passing wheels 59, and finally the strap passes through the wire slot 511. Wherein, the fixing belt mother roll supporting frame 57 is fixed on the right supporting platform 22 and located behind the first wire passing wheel 54.

Referring to fig. 4, the shearing mechanism 6 is close to the outlet end of the wire hole seat 51 for shearing the fixing strap. The shearing mechanism 6 comprises scissors 61 and a driving cylinder 62 connected with the scissors 61, and the driving cylinder 62 controls the scissors 61 to open or close so as to shear the fixing belt.

Referring to fig. 8, the bending butt-joint mechanism 7 includes two bending butt-joint assemblies, and the two bending butt-joint assemblies are distributed in four directions with the left and right welding assemblies. The bending butt joint component comprises a pair of fixed supporting blocks 71, a wire clamping component 72 arranged at the front end of each fixed supporting block 71, a translation cylinder 73 fixed at the rear end of each fixed supporting block 71 and a turnover component 74 connected with the wire clamping component 72.

Referring to fig. 8, the fixing support block 71 includes a fixing block body 711 and a support plate 712 extending upward from a top end of the fixing block body 711. The fixed support block 71 has through holes 713 penetrating through front and rear surfaces thereof.

Referring to fig. 8, the wire clamping assembly 72 includes a wire clamping cylinder 721, and an upper wire clamping plate 722 and a lower wire clamping plate 723 connected to an output end of the wire clamping cylinder 721. Referring to fig. 10, the upper clamp plate 722 and the lower clamp plate 723 respectively comprise an L-shaped connecting section 7221 and an L-shaped clamp section 7222, one end of the L-shaped connecting section 7221 is connected with the clamp cylinder 721, the other end of the L-shaped connecting section 7221 is vertically connected with one end of the L-shaped clamp section 7222, and the other end of the L-shaped clamp section 7222 is provided with a clamp claw 72221 for clamping a fixing strap. The L-shaped connecting segment 7221 lies in two mutually perpendicular planes with the L-shaped clip segment 7222. The upper clamp plate 722 and the lower clamp plate 723 are arranged in parallel, wherein a groove 72222 is formed by cutting off a side surface of a wire clamping claw of the upper clamp plate 722, the upper clamp plate 722 and the lower clamp plate 723 are clamped, and a wire clamping claw 72221 of the lower clamp plate 723 abuts against the bottom of the groove 72222 and is used for clamping a fixing strap. In addition, the inner ends of the wire clamping claws 72221 of the lower wire clamping plate 723 are cut off to form the avoidance portions 72223, and therefore the situation that the two wire clamping claws 72221 are not clamped tightly is avoided. The end of the thread clamping cylinder 721 is fixed with a rotating plate 724.

Referring to fig. 8 and 9, the flipping unit 74 includes a flipping cylinder 741, a connecting rod 742, and a swinging rod 743 sleeved on an outer surface of the connecting rod 742. The non-output end of the turnover cylinder 741 is coupled to the support plate 712, the output end of the turnover cylinder 741 is coupled to the swinging rod 743, and specifically, the swinging rod 743 is tightly sleeved to the connecting rod 742.

One end of the connecting rod 742 is fixed to the rotating plate 724, and the other end of the connecting rod 742 penetrates into the through hole 713 of the fixed supporting block 71 and is connected with the fixed supporting block 71 in a bearing mode, so that the connecting rod 742 rotates in the through hole 713.

The overturning cylinder 741 is provided with a piston rod, the tail end of the piston rod is connected with the swinging rod 743, the piston rod of the overturning cylinder 741 is retracted, the swinging rod 743 drives the connecting rod 742 to rotate 90 degrees, so that the upper clamp plate 722 and the lower clamp plate 723 are overturned by 90 degrees, and the upper clamp plate 722 and the lower clamp plate 723 are overturned from the first state 100 to the second state 200.

The working process of the invention is as follows: referring to fig. 13, a conveying chain 12 drags a mask model assembly 14 covered with a mask to be conveyed between a left welding assembly and a right welding assembly; after the fixing belt clamping jaw is in place, the telescopic cylinder drives the telescopic plate 43 to slide on the sliding rail 45, and the fixing belt clamping jaw 41 is driven to be close to the feeding mechanism 5; then, the telescopic rod 422 of the clamping jaw cylinder 42 is recovered to drive the two clamping plates 411 to clamp the fixing belt extending out of the wire hole seat 51; the jacking cylinder 53 lifts the fixed belt pressing plate 52, the fixed belt clamping jaws 41 move in the direction away from the wire hole seat 51 and pull out a section of fixed belt, after the fixed belt is pulled out to reach a preset length, the translation cylinder 73 pushes the fixed supporting block to move to drive the wire clamping assemblies 72 to be close to the fixed belt, the two sets of wire clamping assemblies 72 clamp two ends of the fixed belt, and the cylinder body 62 is driven to control the scissors 61 to be closed, so that the fixed belt is sheared; thereafter, the fixing band is released by the fixing band holding jaw 41; the turning cylinder 741 drives the connecting rod 742 to rotate by 90 degrees through the swing rod 743, and the two groups of wire clamping assemblies 72 both turn towards the directions close to the two sides of the mask model assembly 14 and clamp the mask, so that the fixing straps are folded in half and the two ends of the fixing straps are aligned with welding points on the two sides of the mask; the welding cylinder pushes the guide rail seat 35 to slide on the guide rail 36, so that the welding head 32 can weld the fixing band and the mask.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A mask fixing band welding method is characterized by comprising the following steps:

step S1, a conveying chain drags the mask model assembly covered with the mask to be conveyed between the left welding assembly and the right welding assembly, fixing belt clamping jaws clamp the fixing belt extending out of the wire hole seat and move in the direction far away from the wire hole seat, and a section of fixing belt is pulled out of two groups of fixing belt clamping jaws; the method specifically comprises the following steps:

step S12, the fixing belt extending out of the outer end of the wire hole seat is penetrated between two opened clamping plates, and the telescopic rod of the clamping jaw cylinder is recovered to drive the two clamping plates to clamp the fixing belt;

step S12, the jacking cylinder lifts the fixing belt pressing plate covered at the upper end of the wire hole seat, and the fixing belt clamping jaw clamps the fixing belt to return to the initial position along the sliding rail;

step S2, after the fixing straps are pulled out to reach a preset length, two groups of wire clamping assemblies clamp two ends of one fixing strap, a shearing mechanism cuts off the fixing strap, two groups of wire clamping assemblies are arranged at two ends of a mask model assembly, two fixing straps are clamped synchronously, the mask model assembly comprises a vertically arranged model plate, and a mask is sleeved on the model plate; the method specifically comprises the following steps: the translation cylinder drives the fixed supporting block to move towards the direction close to the clamping jaws of the fixed belt, the upper clamping plates and the lower clamping plates of the two groups of wire clamping assemblies clamp two ends of the fixed belt, and the cylinder body is driven to control the scissors to be closed so as to cut off the fixed belt;

step S3, the fixing belt clamping jaws release the fixing belt, the upper clamping plate and the lower clamping plate of the wire clamping assembly drive the fixing belt to turn over towards the two sides close to the mask model assembly, and the fixing belt is clamped to be attached to the mask;

and step S4, the welding cylinder pushes the guide rail seat to slide along the guide rail to drive the welding head to be close to the welding point on the outer side of the mask to weld the fixing band with the mask.

2. The mask fixing band welding method according to claim 1, wherein the step S3 specifically comprises: the piston rod of the turnover cylinder is recovered, the swing rod drives the connecting rod to rotate 90 degrees, the upper clamping plate and the lower clamping plate are driven to turn 90 degrees, the upper clamping plate and the lower clamping plate are tightly attached to the outer side of the mask, and fixing belts extending out of the upper clamping plate and the lower clamping plate are aligned to welding points on the outer side of the mask.

3. The mask fixing band welding method according to claim 1, further comprising: the conveying chain drags the mask model assembly provided with the mask to convey between the left welding assembly and the right welding assembly, and after welding is finished, the mask model assembly is conveyed towards the direction far away from the mask model assembly.