CN212949231U - Mask ear belt welding machine - Google Patents

Abstract

The utility model provides a gauze mask ear strap welding machine belongs to processing equipment technical field. It has solved current gauze mask ear area welding machine unstable scheduling problem of long-term work. This gauze mask ear area welding machine, including platen and support, be fixed with ear area fixture on the fixed plate of support, ear area fixture is including fixing the first lift cylinder on the fixed plate, the piston rod of first lift cylinder is fixed with the cylinder block, install two double-layered line cylinders and rotary driving subassembly on the cylinder block, vertically wear to be equipped with two guiding axles that can slide from top to bottom on the fixed plate, the lower extreme and the cylinder block fixed connection of guiding axle, the connecting plate has been linked firmly between the upper end of two guiding axles, the both ends of connecting plate all are fixed with first hydraulic buffer, be fixed with two on the fixed plate and lean on the post, first hydraulic buffer can support to lean on the up end that supports the post by corresponding when first lift cylinder drive cylinder block descends. The mask ear belt welding machine has good stability after long-term use.

Description

Mask ear belt welding machine

Technical Field

The utility model belongs to the technical field of the processing equipment, a gauze mask ear area welding machine is related to.

Background

The two ends of the mask need to be fixed with ear straps, the fixing mode of the ear straps comprises a welding method, a stapling method, a sewing method and the like, wherein the mask made of non-woven fabrics is generally fixed with the ear straps by the welding method.

Chinese patent literature discloses a mask ear belt welding machine [ application number: CN 202010310299.6; publication number: CN111331853A ], including a frame with a platen on the top, a welding device arranged on the platen, and a control box for controlling the automatic operation of the welding device. The welding device comprises a feeding mechanism, a wire drawing and cutting mechanism, an ear belt clamping mechanism, a double-ear belt clamping mechanism and a welding mechanism. Wherein, ear area fixture includes two clamping parts, drive division and first lift portion, and the clamping part is the centre gripping cylinder, and the drive division is for pushing away the gear cylinder, and first lift portion is the second lift cylinder, centre gripping cylinder with push away and still be provided with gear and rack between the gear cylinder.

The second lifting cylinder is fixed on a first cross beam of the support assembly, a cylinder seat is fixed on a driving end of the second lifting cylinder, and the clamping cylinder, the gear pushing cylinder, the gear and the rack are all fixedly connected on the cylinder seat. That is, the driving end of the second lifting cylinder needs to bear the weight of the parts such as the cylinder block, the clamping cylinder, the gear pushing cylinder, the gear and the rack. And the second lift cylinder need go up and down to move, especially when descending the action, cylinder block, centre gripping cylinder, push away gear cylinder, the gear can produce the action of gravity to second lift cylinder to lead to its spacing portion of piston rod of second lift cylinder decline process and cylinder body can produce great impact, can make the performance of second lift cylinder descend after repetitious usage, thereby influence the stability of ear belt fixture operation, and lead to the stability decline of whole gauze mask ear belt welding machine work.

Disclosure of Invention

The utility model aims at the above-mentioned problem that prior art exists, provide a gauze mask ear area welding machine, the technical problem of solution is how to improve the stability of gauze mask ear area welding machine long-term work time.

The purpose of the utility model can be realized by the following technical proposal:

a mask ear strap welding machine comprises a bedplate, wherein a wire drawing and cutting mechanism, a welding table, a mask placing table and a support are arranged on the bedplate, the welding table is positioned between the wire drawing and cutting mechanism and the mask placing table, an ear strap clamping mechanism positioned above the wire drawing and cutting mechanism and an ear strap pressing mechanism positioned above the welding table are fixed on the support, the support comprises a fixed plate positioned above the wire drawing and cutting mechanism, the ear strap clamping mechanism comprises a first lifting cylinder fixed on the fixed plate, a piston rod of the first lifting cylinder is downwards arranged and fixedly connected with a cylinder base, two wire clamping cylinders and a rotary driving assembly capable of driving the two wire clamping cylinders to reversely rotate are arranged on the cylinder base, a guide shaft capable of sliding up and down is vertically arranged on the fixed plate in a penetrating manner, the lower end of the guide shaft is fixedly connected with the cylinder base, two guide shafts are respectively positioned on two sides of the first lifting cylinder, the lifting cylinder is characterized in that a connecting plate is fixedly connected between the upper ends of the two guide shafts, two ends of the connecting plate extend outwards to form mounting heads, first hydraulic buffers are fixedly connected to the two mounting heads, the fixing plate is fixedly connected with supporting columns which correspond to the two first hydraulic buffers one to one, and the first hydraulic buffers can support against the upper end faces of the supporting columns when the first lifting cylinder drives the cylinder seat to descend.

When the mask ear belt welding machine works, the first lifting cylinder drives the cylinder seat to lift so as to match the wire clamping cylinder, the rotary driving assembly, the wire drawing and cutting mechanism, the welding table and the ear belt pressing mechanism to complete the automatic welding process between the ear belt and the mask. When the piston rod of first lift cylinder stretches out downwards, the cylinder block descends, the guiding axle slides down on the fixed plate simultaneously, make and fix the connecting plate downstream on the guiding axle, support to lean on corresponding the up end that leans on the post until the connecting plate descends to the first hydraulic buffer at both ends, first hydraulic buffer has the cushioning effect, can prevent to take place the striking between spacing portion on the first lift cylinder piston rod and the cylinder body, the stability of first lift cylinder long-term use has been guaranteed, thereby the complex stability between first lift cylinder and other mechanisms has been improved, the stability of this gauze mask ear area welding machine long-term use has been improved.

In addition, the connecting plate is fixedly connected between the upper ends of the two guide shafts, the lower ends of the two guide shafts are fixedly connected to the cylinder base, and a rectangular structure is formed among the connecting plate, the two guide shafts and the cylinder base, so that the two guide shafts slide stably on the fixing plate, the movement stability of the ear band clamping mechanism is favorably improved, and the long-term use stability of the mask ear band welding machine is improved. And the both ends of connecting plate all set up first hydraulic buffer for the connecting plate both ends are at first hydraulic buffer and lean on the in-process atress that leans on to lean on by the post balanced, make the connecting plate structure remain stable, thereby be favorable to guaranteeing the stability of ear area fixture operation, also be favorable to this gauze mask ear area welding machine long-term use's stability.

In the mask ear belt welding machine, the outer side face of the lower end of the abutting column is provided with two convex lugs which are symmetrically arranged, and the convex lugs are fixedly connected to the fixing plate through bolts. Set up like this and make to support to fix stably on the fixed plate by the post to make first hydraulic buffer support to stabilize on leaning on the post, improved the stability of first lift cylinder long-term work, thereby be favorable to improving the stability of this gauze mask ear area welding machine long-term work.

In the mask ear belt welding machine, a support plate is fixedly connected to the cylinder block, the rotary driving assembly comprises two linear cylinders hinged to the support plate, two rotary shafts capable of rotating vertically penetrate through the cylinder block, cranks are fixedly connected to the upper ends of the two rotary shafts, the lower ends of the two rotary shafts are fixedly connected with the two wire clamping cylinders respectively, piston rods of the two linear cylinders are hinged to the two cranks respectively, and the two linear cylinders can drive the two cranks to rotate reversely.

When the two linear cylinders act, the rotating shaft can be driven to rotate through the crank, so that the wire clamping cylinder is driven to rotate. Two crank antiport then can drive two trapping lines cylinders antiport through the rotation axis to can realize the clamp of ear area line and get and crooked.

In the mask ear belt welding machine, a second hydraulic buffer is fixed on the cylinder seat, the second hydraulic buffer is provided with two parts and is respectively arranged corresponding to the two cranks, the ear belt pressing mechanism comprises a second lifting cylinder fixed on the support, a piston rod of the second lifting cylinder is arranged downwards and is fixedly connected with a pressing frame, two pressing rods which are vertically arranged are fixed on the pressing frame, the two pressing rods and the two wire clamping cylinders are arranged in a one-to-one correspondence manner, the wire clamping cylinder can rotate to enable clamping jaws of the wire clamping cylinders to be opposite to the corresponding pressing rods, and when the clamping jaws of the wire clamping cylinders are opposite to the corresponding pressing rods, swinging ends of the cranks abut against the second hydraulic buffer.

When the clamping cylinder rotates to enable the clamping jaw of the clamping cylinder to be aligned with the corresponding pressing rod, the clamping jaw of the clamping cylinder is located above the mask welding position, the swinging end of the crank is abutted against the second hydraulic buffer, the crank cannot continue to rotate to enable the position of the clamping cylinder to be kept, the second hydraulic buffer has a limiting effect and a buffering effect, the two ends of the ear strap wire clamped by the clamping jaw of the clamping cylinder slowly and stably stop above the mask welding position, and the phenomenon that the two ends of the ear strap wire are greatly swung in the process from rotation to stop of the clamping cylinder is avoided, so that the pressing rod of the ear strap pressing mechanism can accurately and stably press the two ends of the ear strap wire, and the mask ear strap welding machine can stably and smoothly complete welding work.

In the above-mentioned mask ear belt welding machine, the support plate comprises a horizontal plate, a hinged plate and a middle plate, the front end of the horizontal plate is fixedly connected to the cylinder block, the hinged plate is vertically fixed at the rear end of the horizontal plate, the rear end of the linear cylinder is hinged to the hinged plate, the middle plate is vertically arranged between the two linear cylinders, the rear end of the middle plate is fixed with the hinged plate, and the lower end of the middle plate is fixed with the horizontal plate.

The connecting structure of the horizontal plate, the hinged plate and the middle plate enables the whole structure of the supporting plate to be stable, so that the linear cylinder works stably, and the improvement of the working stability of the mask ear band welding machine is facilitated.

Compared with the prior art, the utility model has the advantages of it is following:

fixed connection board between two guiding axle upper ends, the fixed first hydraulic buffer in both ends of connecting plate, fixed supporting with first hydraulic buffer corresponds on the fixed plate leans on the pole, makes first lift cylinder at decline in-process job stabilization, avoids first lift cylinder's spacing portion and cylinder body to take place the striking, has improved the stability of this gauze mask ear area welding machine long-term work. Set up the second hydraulic buffer on the cylinder block, make the clamping jaw of double-layered line cylinder rotate and stably stop when being relative with the compression bar to make the both ends of ear area line accurate in the position of gauze mask welding department, make the both ends of ear area line can be pushed down by the compression bar accuracy, make gauze mask ear area welding machine job stabilization. The structure of the supporting plate is stable, so that the linear cylinder works stably. The structure of the leaning rod is stable, so that the first lifting cylinder works stably.

Drawings

FIG. 1 is a perspective view of the mask ear strap welding machine;

FIG. 2 is a perspective view of an ear strap clamping mechanism in the mask ear strap welding machine;

FIG. 3 is a perspective view of a rotary drive assembly in the mask ear strap welding machine;

fig. 4 is a partially enlarged view of the mask table in fig. 1 when the mask is not placed;

fig. 5 is a perspective view of a wire pulling and cutting mechanism in the mask ear belt welding machine.

In the figure, 1, a platen; 1a, mounting holes; 2. a control box; 3. a wire drawing and cutting mechanism; 3a, a slide rail; 3b, a wire pulling cylinder; 3c, a wire passing and pressing assembly; 3c1 and a wire passing groove body; 3c2, a line pressing cylinder; 3c3, line pressing block; 3d, clamping a cylinder; 3e, a thread trimming cylinder; 3f, fixing blocks; 3g, a sliding block; 4. a welding table; 5. a mask placing table; 6. a support; 6a, a vertical column; 6b, a transverse beam; 6c, longitudinal beams; 6d, fixing plates; 6e, a bridge plate; 7. an ear band clamping mechanism; 7a, a first lifting cylinder; 7b, a cylinder block; 7b1, an upper transverse plate; 7b2, a lower transverse plate; 7b3 and a left vertical plate; 7b4 and a right vertical plate; 7c, a wire clamping cylinder; 7d, a rotation driving component; 7d1, linear cylinder; 7d2, rotation axis; 7d3, crank; 7e, a guide shaft; 7f, a connecting plate; 7f1, mounting head; 7g, a first hydraulic buffer; 7h, abutting against the column; 7h1, lugs; 7k, a support plate; 7k1, horizontal plate; 7k2, hinge plate; 7k3, middle plate; 7m, a second hydraulic buffer; 8. an ear band pressing mechanism; 8a, a second lifting cylinder; 8b, a pressing frame; 8c, a pressing rod; 9. a slat; 10. a mounting seat; 11. a motor; 12. a mask.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

Example one

As shown in fig. 1-5, a mask ear belt welding machine comprises a bedplate 1, a control box 2 is arranged below the bedplate 1, and rollers and supporting legs are fixed at the lower end of the control box 2. The table plate 1 is provided with a wire drawing and cutting mechanism 3, a welding table 4, a mask placing table 5 and a support 6, the welding table 4 is located between the wire drawing and cutting mechanism 3 and the mask placing table 5, and the support 6 is fixed with an ear band clamping mechanism 7 located above the wire drawing and cutting mechanism 3 and an ear band pressing mechanism 8 located above the welding table 4.

The wire drawing and cutting mechanism 3 comprises a slide rail 3a, a wire drawing cylinder 3b, a wire threading and pressing assembly 3c, a clamping cylinder 3d and a wire cutting cylinder 3 e. Fixedly connected with lath 9 on the platen 1, slide rail 3a fixed connection is on lath 9's upper surface, and the right-hand member of slide rail 3a is fixed with fixed block 3f, and slidable sliding block 3g is installed to the left end of slide rail 3 a. The wire-passing and wire-pressing assembly 3c comprises a wire-passing groove body 3c1 and a wire-pressing cylinder 3c2 which are fixed on the fixing block 3f, a wire-passing groove is formed in the wire-passing groove body 3c1, a wire-pressing block 3c3 is fixed on a piston rod of the wire-pressing cylinder 3c2, and the wire-pressing block 3c3 is located in the wire-passing groove. During the operation, the ear belt line is worn to establish in crossing the wire casing, and when line ball cylinder 3c 2's piston rod stretches out, line ball 3c3 can compress tightly the ear belt line in crossing the wire casing, and when line ball cylinder 3c 2's piston rod withdrawal, line ball 3c3 can be released the ear belt line. The thread trimming cylinder 3e is also fixedly connected to the fixing block 3f, scissors are arranged on the thread trimming cylinder 3e, and the scissors are positioned on the left side of the thread passing groove body 3c 1. The bracing wire cylinder 3b is fixed on the lath 9 and is positioned at the left side of the sliding block 3g, a piston rod of the bracing wire cylinder 3b is fixed with the sliding block 3g, the clamping cylinder 3d is fixed on the sliding block 3g, and a clamping jaw of the clamping cylinder 3d is opposite to the wire passing groove. During operation, the piston rod of the stay wire cylinder 3b stretches out, the sliding block 3g slides rightwards, the clamping jaw of the clamping cylinder 3d is close to the wire passing groove body 3c1 and can clamp the end part of the lug wire exposed out of the wire passing groove, the piston rod of the stay wire cylinder 3b retracts, the sliding block 3g slides leftwards, and the clamping cylinder 3d can pull out the clamped lug wire for a distance.

The bedplate 1 is provided with a mounting hole 1a, the mounting hole 1a is positioned in front of the lath 9, the welding table 4 is fixed in the mounting hole 1a, the upper end of the welding table 4 extends out of the mounting hole 1a, and the lower end of the welding table 4 is connected with an ultrasonic welding device. The place ahead fixedly connected with mount pad 10 that lies in welding bench 4 on the platen 1, fixedly connected with is located the motor 11 of mount pad 10 below on the mount pad 10, and motor 11 is arranged in mounting hole 1a, and mount pad 10 is upwards passed in motor 11's pivot, and 5 detachable fixed connection of platform are placed to the gauze mask in motor 11 pivots. The mask placing table 5 comprises a connecting sleeve and a holding disc fixed on the end face of the connecting sleeve, one side of the connecting sleeve is opened and is provided with an anchor ear structure, the other side, which is not opened, of the connecting sleeve is fixed with the holding disc, and the mask placing table 5 is detachably fixed on a rotating shaft of the motor 11 through the anchor ear structure on the connecting sleeve; or the connecting sleeve is in threaded connection with a set screw, and the end part of the set screw is abutted against the rotating shaft of the motor 11 to realize fixation. The motor 11 rotates and can drive the mask placing table 5 to rotate, so that switching welding of two ends of the mask 12 is achieved, and automation of welding between the 12 ear bands of the mask is improved. The detachable fixed connection of the mask placing table 5 is arranged on the rotating shaft of the motor 11, and the different mask placing tables 5 can be replaced according to the different specifications of the masks 12, so that the mask ear belt welding machine can meet the production requirements of the masks 12 with different specifications.

The bracket 6 includes a pillar 6a, a transverse beam 6b, a longitudinal beam 6c, a fixing plate 6d, and a bridge plate 6 e. Four upright posts 6a are vertically fixed on the bedplate 1; the number of the transverse beams 6b is two, and the transverse beams 6b are horizontally fixed at the upper ends of the two upright posts 6a along the left-right direction; the number of the longitudinal beams 6c is two, and the longitudinal beams 6c are horizontally fixed on the two transverse beams 6b along the front-back direction; the fixed plate 6d and the bridging plate 6e are horizontally fixed to the two longitudinal beams 6c in the left-right direction, and the bridging plate 6e is located in front of the fixed plate 6 d. The fixed plate 6d is positioned above the wire drawing and cutting mechanism 3, and the bridging plate 6e is positioned above the welding table 4.

Ear area fixture 7 is including fixing first lift cylinder 7a on fixed plate 6d, and the piston rod of first lift cylinder 7a sets up and fixedly connected with cylinder block 7b down, installs two trapping lines cylinders 7c on the cylinder block 7b and can drive two trapping lines cylinder 7c antiport's rotary drive subassembly 7 d. Ear area hold-down mechanism 8 is including fixing the second lift cylinder 8a on bridging plate 6e, and the piston rod of second lift cylinder 8a sets up and fixedly connected with compresses tightly frame 8b down, compresses tightly two compressing rods 8c that are fixed with vertical setting on the frame 8b, and two compressing rods 8c set up with two double-layered line cylinders 7c one-to-one, and second lift cylinder 8a can drive compressing rods 8c and support and lean on welding bench 4.

The cylinder seat 7b is rectangular and comprises an upper transverse plate 7b1, a lower transverse plate 7b2, a left vertical plate 7b3 and a right vertical plate 7b4, the upper transverse plate 7b1 is located above the lower transverse plate 7b2, the left vertical plate 7b3 is fixed between the left end of the upper transverse plate 7b1 and the left end of the lower transverse plate 7b2, and the right vertical plate 7b4 is fixed between the right end of the upper transverse plate 7b1 and the right end of the lower transverse plate 7b 2. The piston rod of the first lifting cylinder 7a is fixedly connected with the upper cross plate 7b 1. The fixed plate 6d is vertically provided with two guide shafts 7e which can slide up and down, the two guide shafts 7e are respectively positioned at two sides of the first lifting cylinder 7a, and the lower end of the guide shaft 7e is fixedly connected with the upper transverse plate 7b 1. A connecting plate 7f is fixedly connected between the upper ends of the two guide shafts 7e, two ends of the connecting plate 7f extend outwards to form mounting heads 7f1, and first hydraulic buffers 7g are fixedly connected to the two mounting heads 7f 1. Fixedly connected with on the fixed plate 6d leans on post 7h with two first hydraulic buffer 7g one-to-one, when first lift cylinder 7a drive cylinder block 7b descends, first hydraulic buffer 7g can lean on the up end that leans on post 7h correspondingly. The outer side surface of the lower end of the abutting column 7h is provided with a convex lug 7h1, and two lugs 7h1 are symmetrically arranged. The lug 7h1 is fixedly connected to the fixing plate 6d by a bolt [ not shown in the figure ], and the lug 7h1 is provided with a bolt hole through which a bolt is screwed with the fixing plate 6 d.

The cylinder seat 7b is fixedly connected with a supporting plate 7k, the supporting plate 7k comprises a horizontal plate 7k1, a hinge plate 7k2 and a middle plate 7k3, the front end of the horizontal plate 7k1 is fixedly connected to a lower transverse plate 7b2, the hinge plate 7k2 is vertically fixed to the rear end of the horizontal plate 7k1, the middle plate 7k3 is vertically arranged, the rear end of the middle plate 7k3 is fixed to the hinge plate 7k2, and the lower end of the middle plate 7k3 is fixed to the horizontal plate 7k 1. The rotary drive assembly 7d includes two linear cylinders 7d1 hinged on hinge plates 7k2 with an intermediate plate 7k3 located between the two linear cylinders 7d 1. Two rotatable rotating shafts 7d2 vertically penetrate through the lower transverse plate 7b2, the upper ends of the two rotating shafts 7d2 are fixedly connected with cranks 7d3, and the lower ends of the two rotating shafts 7d2 are fixedly connected with the two wire clamping cylinders 7c respectively. The rear ends of the two linear air cylinders 7d1 are hinged on the hinge plates 7k2, and the piston rods of the two linear air cylinders 7d1 extend forwards and are respectively hinged with the swinging ends of the two cranks 7d 3. The two linear cylinders 7d1 can drive the two cranks 7d3 to rotate reversely, namely, the two wire clamping cylinders 7c can be driven to rotate reversely. When the clamping jaws of the two wire clamping cylinders 7c are close to each other, the clamping jaws of the two wire clamping cylinders 7c can be opposite to the corresponding pressing rods 8 c; when the clamping jaws of the two wire clamping cylinders 7c are far away from each other, the clamping jaw of the wire clamping cylinder 7c positioned on the left side can be opposite to the clamping jaw of the clamping cylinder 3d, and the clamping jaw of the wire clamping cylinder 7c positioned on the right side can be opposite to the wire passing groove.

The second hydraulic shock absorbers 7m are fixed to the lower cross plate 7b2, and two of the second hydraulic shock absorbers 7m are provided to correspond to the two cranks 7d3, respectively. When the jaws of the thread clamping cylinder 7c are aligned with the corresponding presser bar 8c, the swing end of the crank 7d3 abuts on the second hydraulic buffer 7 m. Two fixing seats are fixed on the lower transverse plate 7b2, and the second hydraulic buffer 7m is arranged through and fixed on the fixing seats.

When the mask ear belt welding machine works, a mask 12 is placed on a storage disc, a wire drawing cylinder 3b drives a sliding block 3g to slide rightwards, a clamping cylinder 3d clamps one end of an ear belt wire, the wire drawing cylinder 3b resets, the ear belt wire is drawn out for a certain distance, a wire pressing cylinder 3c2 drives a wire pressing block 3c3 to press the ear belt wire on a wire passing groove body 3c1, then a straight cylinder 7d1 drives two wire clamping cylinders 7c to rotate reversely, clamping jaws of the two wire clamping cylinders 7c are far away from each other, then a first lifting cylinder 7a drives a cylinder seat 7b to descend until a first hydraulic buffer 7g abuts against an abutting rod, then clamping jaws of the two wire clamping cylinders 7c clamp two ends of the ear belt wire, then a wire shearing cylinder 3e acts to shear the ear belt wire, then the first lifting cylinder 7a drives the cylinder seat 7b to ascend, a straight cylinder 7d1 drives the two wire clamping cylinders 7c to rotate and reset, the clamping jaws of the two wire clamping cylinders 7c approach each other to bend the ear belt line until the second hydraulic buffer 7m abuts against the swinging end of the crank 7d3, the clamping jaws of the wire clamping cylinders 7c are located above the welding position of the mask 12, then the first lifting cylinder 7a drives the cylinder seat 7b to descend, then the second lifting cylinder 8a drives the pressing rod 8c to descend, the pressing rod 8c abuts against the welding table 4 to enable the two ends of the ear belt line to be pressed on the mask 12, then the first lifting cylinder 7a drives the cylinder seat 7b to ascend, the clamping jaws of the wire clamping cylinders 7c are far away from the welding table 4, and the ultrasonic welder finishes the welding of one end of the mask 12. Then, the second lifting cylinder 8a drives the compression rod 8c to ascend, the motor 11 rotates to enable the other end of the mask 12 to be located on the welding table 4, welding of the other end of the mask 12 is continued, the mask 12 is taken down after welding is completed, and the next mask 12 is welded.

When the piston rod of first lift cylinder 7a stretches out downwards, cylinder block 7b descends, guide shaft 7e slides down on fixed plate 6d simultaneously, make connecting plate 7f fixed on guide shaft 7e move down, until connecting plate 7f descends to the first hydraulic buffer 7g at both ends and support and lean on corresponding the up end that leans on post 7h, first hydraulic buffer 7g has cushioning effect, can prevent to take place the striking between spacing portion on the piston rod of first lift cylinder 7a and the cylinder body, the long-term stability of using of first lift cylinder 7a has been guaranteed, thereby the complex stability between first lift cylinder 7a and other mechanisms has been improved, the long-term stability of using of this gauze mask ear area welding machine has been improved. The linear cylinder 7d1 drives the two wire clamping cylinders 7c to rotate, clamping jaws of the two wire clamping cylinders 7c approach each other to bend the ear belt wire until the second hydraulic buffer 7m abuts against the swinging end of the crank 7d3, the second hydraulic buffer 7m has a limiting function and a buffering function, two ends of the ear belt wire clamped by the clamping jaws of the wire clamping cylinders 7c stably stop above the welding position of the mask 12, and the phenomenon that the two ends of the ear belt wire are greatly swung in the process from rotation to stop of the wire clamping cylinders 7c is avoided, so that the pressing rods 8c of the ear belt pressing mechanisms 8 can accurately and stably press two ends of the ear belt wire, and the mask ear belt welding machine can stably and smoothly complete welding work.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made or substituted in a similar manner to the specific embodiments described herein by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the appended claims.

Claims (5)

1. The mask ear strap welding machine comprises a platen (1), wherein a drawing and cutting mechanism (3), a welding table (4), a mask placing table (5) and a support (6) are arranged on the platen (1), the welding table (4) is located between the drawing and cutting mechanism (3) and the mask placing table (5), an ear strap clamping mechanism (7) located above the drawing and cutting mechanism (3) and an ear strap pressing mechanism (8) located above the welding table (4) are fixed on the support (6), the support (6) comprises a fixing plate (6d) located above the drawing and cutting mechanism (3), the ear strap clamping mechanism (7) comprises a first lifting cylinder (7a) fixed on the fixing plate (6d), a piston rod of the first lifting cylinder (7a) is arranged downwards and fixedly connected with a cylinder seat (7b), two wire clamping cylinders (7c) and a cylinder seat (7b) capable of driving the two wire clamping cylinders (7c) to be reversed, are mounted on the cylinder seat (7b) A rotary driving component (7d) which rotates, a guide shaft (7e) which can slide up and down is vertically arranged on the fixed plate (6d) in a penetrating way, the lower end of the guide shaft (7e) is fixedly connected with a cylinder seat (7b), the two guide shafts (7e) are respectively positioned at two sides of the first lifting cylinder (7a), it is characterized in that a connecting plate (7f) is fixedly connected between the upper ends of the two guide shafts (7e), two ends of the connecting plate (7f) extend outwards to form mounting heads (7f1), a first hydraulic buffer (7g) is fixedly connected to each of the two mounting heads (7f1), the fixing plate (6d) is fixedly connected with abutting columns (7h) which are in one-to-one correspondence with the two first hydraulic buffers (7g), the first hydraulic buffer (7g) can abut against the upper end face of the corresponding abutting column (7h) when the first lifting cylinder (7a) drives the cylinder block (7b) to descend.

2. The mask ear strap welding machine according to claim 1, wherein the abutment post (7h) has a protruding lug (7h1) on the outer side of the lower end thereof, two lugs (7h1) are symmetrically arranged, and the lugs (7h1) are fixedly connected to the fixing plate (6d) by bolts.

3. The mask ear strap welding machine according to claim 1 or 2, characterized in that a supporting plate (7k) is fixedly connected to the cylinder base (7b), the rotary driving assembly (7d) comprises two linear cylinders (7d1) hinged to the supporting plate (7k), two rotatable rotating shafts (7d2) vertically penetrate through the cylinder base (7b), cranks (7d3) are fixedly connected to the upper ends of the two rotating shafts (7d2), the lower ends of the two rotating shafts (7d2) are fixedly connected to the two wire clamping cylinders (7c), piston rods of the two linear cylinders (7d1) are hinged to the two cranks (7d3), and the two linear cylinders (7d1) can drive the two cranks (7d3) to rotate in opposite directions.

4. The mask ear strap welding machine according to claim 3, characterized in that a second hydraulic buffer (7m) is fixed on the cylinder base (7b), two second hydraulic buffers (7m) are arranged corresponding to the two cranks (7d3), the ear strap pressing mechanism (8) comprises a second lifting cylinder (8a) fixed on the support (6), a piston rod of the second lifting cylinder (8a) is arranged downwards and fixedly connected with a pressing frame (8b), two pressing rods (8c) vertically arranged are fixed on the pressing frame (8b), the two pressing rods (8c) are arranged corresponding to the two wire clamping cylinders (7c), the wire clamping cylinder (7c) can rotate to enable a clamping jaw of the wire clamping cylinder (7c) to be opposite to the corresponding pressing rod (8c), and when a clamping jaw of the wire clamping cylinder (7c) is opposite to the corresponding pressing rod (8c), the swinging end of the crank (7d3) is opposite to the swinging end of the pressing rod (8c) Against the second hydraulic shock absorber (7 m).

5. The mask ear strap welding machine according to claim 3, wherein the supporting plate member (7k) comprises a horizontal plate (7k1), a hinge plate (7k2) and an intermediate plate (7k3), the front end of the horizontal plate (7k1) is fixedly connected to the cylinder block (7b), the hinge plate (7k2) is vertically fixed to the rear end of the horizontal plate (7k1), the rear end of the linear cylinder (7d1) is hinged to the hinge plate (7k2), the intermediate plate (7k3) is vertically disposed between two linear cylinders (7d1), the rear end of the intermediate plate (7k3) is fixed to the hinge plate (7k2), and the lower end of the intermediate plate (7k3) is fixed to the horizontal plate (7k 1).

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