CN213675549U - Ear belt welding machine - Google Patents

Abstract

The utility model discloses an ear strap welding machine, it includes conveyer, ear line loading attachment, ear strap forming device and butt fusion device, conveyer with ear line loading attachment conveys gauze mask body and ear line respectively ear strap forming device department, ear strap forming device is to the conveying the ear line carries out the inflection location in order to form the ear line section that accords with the ear strap requirement, and will the ear line section is followed tailor the separation in order to form an ear strap on the ear line, the butt fusion device is in under ear strap forming device's the cooperation, will the ear strap butt fusion in with a formation gauze mask on the gauze mask body, conveyer is right the gauze mask conveys with the ejection of compact. The automatic assembly machine is simple in structure, can achieve automatic assembly operation of forming the mask by ear straps meeting requirements in a winding mode of ear wires and welding the ear straps with the mask body, and is high in assembly precision and efficient.

Description

Ear belt welding machine

Technical Field

The utility model relates to a gauze mask manufacture equipment especially relates to an ear area welding machine.

Background

The mask is a sanitary article, generally worn on the mouth and nose to filter air entering the mouth and nose so as to achieve the effect of blocking harmful gas, smell, spray, virus and other substances, and is mostly made of non-woven fabrics, gauze or paper and the like. The existing masks are generally classified into a flat mask, a folding mask and a three-dimensional mask according to the difference of the shapes, and any mask with any shape is worn by at least one wearing mode of a head-wearing type, an ear-wearing type and a neck-wearing type for convenience of use. In the manufacturing process of the mask, a whole roll or a whole strip of line or belt body is formed into a head band, an ear band or a neck band with a required length and shape so as to be assembled at a corresponding position of the mask body.

At present, to the bandeau, ear area or neck area the montage on the gauze mask body is many to adopt artifical or artifical and semi-automatic equipment to combine together the mode to go on, the montage is long consuming time, and production efficiency is low, and when the line body or area body had certain elasticity, the uniformity of the length of bandeau, ear area or neck area that manual work can't effectively guarantee to cut to influence follow-up montage on the gauze mask body, also can't guarantee the uniformity of the montage on the gauze mask body, thereby influence subsequent use.

Therefore, there is a need for an ear strap welding machine that can achieve automated line production, is compact, has high assembly accuracy, and is efficient to overcome the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a can realize automatic line production, compact structure, high and efficient ear area welding machine of assembly precision.

In order to achieve the purpose, the utility model discloses an ear strap welding machine for connect the ear strap on the gauze mask body in order to form the gauze mask, the ear strap welding machine includes conveyer, ear wire loading attachment, ear strap forming device and welding set, conveyer with ear wire loading attachment convey gauze mask body and ear wire to ear strap forming device department respectively, ear strap forming device carries out the wraparound location to the ear wire of conveying so as to form the ear wire section that accords with the ear strap requirement, and tailor the ear wire section from the ear wire and separate so as to form an ear strap, the welding set under the cooperation of ear strap forming device, with the ear strap welding on the gauze mask body so as to form a gauze mask, conveyer conveys the gauze mask with the ejection of compact; the conveying device comprises a chain transmission mechanism and a belt transmission mechanism which are in butt joint, the chain transmission mechanism is used for conveying the mask body to the ear belt forming device, conveying the mask formed at the ear belt forming device to the belt transmission mechanism, and the belt transmission mechanism conveys the mask to discharge materials.

Compared with the prior art, the utility model discloses the ear strap welding machine passes through conveyer and ear wire loading attachment and corresponds automatic conveying of gauze mask body and ear wire to ear strap forming device department, carry out the kinking location to the ear wire by ear strap forming device in order to form the ear wire section that accords with the ear strap requirement, and cut out the ear wire section from the ear wire and separate in order to form the ear strap, and the butt fusion device is under the cooperation of ear strap forming device, fuse the ear strap on the gauze mask body and form the gauze mask, again convey the gauze mask with the ejection of compact by conveyer, local simple structure, can realize the kinking of ear wire in order to form the ear wire section, the ear wire section separates with whole ear wire in order to form the ear strap and the ear strap welds with the gauze mask body in order to form the automatic water flowing operation of gauze mask, the assembly precision is high and high-efficient; in addition, the ear line segments, the ear belts and the welding of the ear belts and the mask body are all completed at the ear belt forming device, so that the movement of the ear line segments and the ear belts and the re-positioning after the movement are effectively reduced, the efficiency and the assembly precision are further improved, and the whole machine is compact in structure and reasonable in layout.

Preferably, the ear strap welding machine comprises two ear strap forming devices, the two ear strap forming devices are sequentially arranged along the conveying direction of the conveying device and are symmetrically arranged, and the ear wire feeding device, the welding device and the ear strap forming devices are arranged in a one-to-one correspondence manner.

Preferably, the conveying device further comprises a limiting part, the limiting part is suspended at the edge of the conveying surface of the chain transmission mechanism along the conveying direction of the chain transmission mechanism, and the distance between the limiting part and the conveying surface of the chain transmission mechanism corresponds to the thickness dimension of the opposite edge of the mask body.

Preferably, the ear band forming device is erected above the welding position of the conveying device and can move linearly up and down relative to the conveying device, so that the head and tail welding ends of the ear band are abutted or close to the two welding points of the mask body located at the welding position in a one-to-one correspondence manner.

Preferably, earlap forming device includes one around flange, two setting elements and four holders, two the setting element is the protruding locating of symmetry two contralateral sides about the flange, four two bisymmetry of holder arrange in around the flange two contralateral sides, just the holder can be relative around the flange rotates to press from both sides tightly or loosen around connect in around the flange with the earline between the holder, can drive the centre gripping around the flange and be fixed in the holder with around between the flange the earline round the setting element rotates certain angle, makes the earline can alternate around connect and be located two the setting element with adjacent two between the holder to incessant formation meets the required earline segment.

Preferably, the ear band forming device further comprises a cutting member, the cutting member is arranged on at least one of the front side and the rear side of the reel, and is located between the two clamping members on the side, so that the ear band segment can be cut and separated from the ear band.

Preferably, the welding pressure head of the welding device is arranged above the welding position of the conveying device and can move linearly up and down relative to the conveying device so as to abut against the welding ends of the ear bands on the mask body, or abut against the head and tail welding ends of the ear bands above the mask body to abut against two welding points of the mask body in one-to-one correspondence.

Preferably, the welding pressure head and the ear band forming device can move linearly synchronously to be close to the mask body, and the welding pressure head can also move linearly up and down relative to the ear band forming device to abut against the welding end of the ear band.

Preferably, the welding device further comprises a separating piece, the separating piece is arranged above the welding position and located beside the welding pressure head, and the separating piece can move linearly up and down relative to the conveying device, so that the ear straps welded to the mask body can be separated from the ear strap forming device.

Drawings

Fig. 1 is a schematic perspective view of the ear belt welding machine of the present invention.

Fig. 2 is a schematic plan view of the ear belt welding machine of the present invention.

Fig. 3 is an enlarged view of a portion a in fig. 1.

Fig. 4 is a schematic perspective view of the belt transmission mechanism of the present invention.

Fig. 5 is a schematic perspective view of a part of the components of the ear strap welding machine of the present invention.

Fig. 6 is a schematic plan view of a part of the components of the ear strap welding machine of the present invention.

Fig. 7 is a schematic perspective view of the ear band forming device of the present invention.

Fig. 8 is a schematic perspective view of the receiving reel of the present invention.

Fig. 9 is a state diagram of the ear wire of the present invention wound on the ear band forming device.

Detailed Description

In order to explain the contents, structural features, and objects and effects of the present invention in detail, the following description is given in conjunction with the embodiments and the accompanying drawings.

Referring to fig. 1 and 2, the present invention discloses an ear strap welding machine 100 for assembling an ear strap on a mask body to form a mask, in the preferred embodiment of the present invention, the ear belt welding machine 100 comprises a conveying device 10, an ear wire feeding device 20, an ear belt forming device 30 and a welding device 40, which are installed on the working platform 101, the conveying device 10 and the ear wire feeding device 20 respectively convey the mask body and the ear wire 200 (see fig. 9) to the ear belt forming device 30, the ear belt forming device 30 performs the winding positioning on the conveyed ear wire 200 to form an ear wire section 201 (see fig. 9) meeting the ear belt requirement, the ear line segment 201 is cut and separated from the ear line 200 to form an ear band, the ear band is welded on the mask body by the welding device 40 under the matching of the ear band forming device 30 to form a mask, and the mask is conveyed by the conveying device 10 to be discharged.

It should be noted that the ear strap welding machine 100 of the present invention further includes a control system 50, wherein the control system 50 is electrically connected to the conveying device 10, the ear wire feeding device 20, the ear strap forming device 30 and the welding device 40 for controlling the coordination between the devices. The control system 50 includes a control box 51 disposed beside the working platform 101, a control panel 52 and an operation button 53 disposed outside the control box 51, and an electrical control element disposed in the control box 51. The control system 50 is of conventional design, and its structure and control principle are well known in the art, so that it will not be described in detail here.

Specifically, the relative center of the conveying device 10 is provided with a welding position 10a, the ear band forming device 30 is erected above the welding position 10a and can move linearly up and down relative to the conveying device 10, so that two welding ends of the ear band are abutted or close to two welding points located at the left side end or the right side end of the mask body of the welding position 10a in a one-to-one correspondence manner.

Specifically, in the present embodiment, the ear band welding machine 100 of the present invention includes two ear band forming devices 30, and then two welding positions 10a are disposed on the conveying device 10, the two ear band forming devices 30 are sequentially arranged at the two welding positions 10a along the conveying direction of the conveying device 10, and the two ear band forming devices 30 are symmetrically arranged; the ear wire feeding device 20, the welding device 40 and the ear belt forming device 30 are arranged in a one-to-one correspondence manner. One of the two ear band forming devices 30 is responsible for forming and welding the ear band at the left end of the mask body, and the other is responsible for forming and welding the ear band at the right end of the mask body, so that the assembly of the left and right ear bands on the mask is completed twice, and the production line is effectively balanced through reasonable layout, and the welding efficiency is improved.

Referring to fig. 1 and 2, in the preferred embodiment of the present application, the conveying device 10 includes a chain transmission mechanism 11 and a belt transmission mechanism 12 which are butted, the chain transmission mechanism 11 is used for conveying the mask body to the ear belt forming device 30, and conveying the mask formed at the ear belt forming device 30 to the belt transmission mechanism 12, and the belt transmission mechanism 12 conveys the mask for discharging. By adopting the feeding mode of combining the chain transmission mechanism 11 and the belt transmission mechanism 12, not only can the accurate and effective transmission be ensured, but also the transmission efficiency can be improved. The chain drive 11 is of conventional design, and its structure and operation are well known in the art, so that it will not be described in detail here.

With reference to fig. 1 and 3, since the mask body is relatively light and thin, in order to prevent the mask body from shifting in the vertical direction during the conveying process, the conveying device 10 further includes a limiting member 13, the limiting member 13 is suspended at the edge of the conveying surface of the chain transmission mechanism 11 along the conveying direction of the chain transmission mechanism 11, and the distance between the limiting member 13 and the conveying surface of the chain transmission mechanism 11 corresponds to the thickness dimension at the opposite edge of the mask. The limiting member 13 may be a steel wire rope.

Specifically, the number of the limiting pieces 13 is two, two mounting wheels 14 linearly arranged along the conveying direction of the chain transmission mechanism 11 are respectively arranged on the left and right opposite sides of the chain transmission mechanism 11, and the two limiting pieces 13 are correspondingly wound on the two mounting wheels 14 on the same side one by one, so that the two limiting pieces are correspondingly suspended at the left and right edges of the conveying surface close to the chain transmission mechanism 11, the movement of the mask is limited from the left and right sides of the mask body, the upward rolling and displacement or derailment of the mask is effectively prevented, the limiting effect is good, and the accuracy of subsequent welding is further improved.

Specifically, the conveying device 10 further comprises a pressing plate 15, the pressing plate 15 is suspended at the opposite front end of the chain transmission mechanism 11 and located at the opposite center of the conveying surface of the chain transmission mechanism 11, the distance between the pressing plate 15 and the conveying surface of the chain transmission mechanism 11 corresponds to the thickness of the mask at the opposite center, so that the movement of the mask can be limited from the center of the mask body, the mask is effectively prevented from being displaced in the vertical direction, a certain shaping effect can be achieved, and the accuracy of subsequent welding is further improved. When the limiting piece 13 is used in combination with the pressing plate 15, the limiting effect is better.

With reference to fig. 1, 2 and 4, the belt transmission mechanism 12 includes a first belt 121 and a second belt 122 disposed at an output end of the first belt 121, and an input end of the first belt 121 is abutted to an output end of the chain transmission mechanism 11 for receiving and transmitting the mask conveyed by the chain transmission mechanism 11. The output end of the first conveyor belt 121 is suspended outside the working platform 101, the second conveyor belt 122 is disposed below the first conveyor belt 121, the conveying directions of the second conveyor belt 122 and the first conveyor belt 121 are perpendicular to each other, and the second conveyor belt 122 is used for receiving the mask conveyed by the first conveyor belt 121 and conveying the mask to a position where detection and packaging are convenient.

Specifically, the first conveyor belt 121 includes an upper conveyor belt 1211 and a lower conveyor belt 1212 which are arranged in parallel and at an interval, and a distance between the upper conveyor belt 1211 and the lower conveyor belt 1212 corresponds to a thickness dimension of the mask at opposite edges, so that the mask conveyed by the chain transmission mechanism 11 is conveyed between the upper conveyor belt 1211 and the lower conveyor belt 1212. The upper conveyor 1211 and the lower conveyor 1212 each include two belts 1213 arranged in parallel and spaced apart from each other. The two belts 1213 of the upper conveyor 1211 are fitted around the upper rotating shaft 1214 and the corresponding two positioning shafts 1215. The two belts 1213 of the lower conveyor 1212 are sleeved on the lower rotating shafts 1214 and the corresponding two positioning shafts 1215, and the two rotating shafts 1214 are respectively connected to the output ends of the rotary drivers 1216, so that the upper conveyor 1211 and the lower conveyor 1212 can rotate synchronously to feed materials.

Specifically, the belt transmission mechanism 12 further includes a pushing element 123, the pushing element 123 is erected above the output end of the first conveyor belt 121 and faces the position of the second conveyor belt 122, and the pushing element 123 can move linearly up and down relative to the first conveyor belt 121 under the driving of a pushing driver 124 connected with the pushing element 123, so as to lightly press the mask output by the first conveyor belt 121, and make the mask drop onto the second conveyor belt 122, thereby effectively preventing the problem that the blanking positions of the masks output by the first conveyor belt 121 are inconsistent.

Referring to fig. 5 and 6, the ear band forming device 30 is mounted above the welding position 10a by a mounting bracket 102 mounted on the working platform 101, and the ear wire feeding device 20 is fixed to the ear band forming device 30 by a mounting plate 21 mounted on the top side end of the mounting bracket 102.

Specifically, the ear line feeding device 20 includes a rotary driver 22 disposed on the mounting plate 21, a driving wheel 23 connected to an output end of the rotary driver 22, a driven wheel 24 in friction fit with the driving wheel 23, a tension wheel 25, a plurality of guide wheels 26, and a positioning wheel 27 disposed at a lower side of the mounting frame 102 and located at a side of the ear band forming device 30. The free end of the ear wire 200 sequentially passes through the two guide wheels 26 at the top end, the space between the driving wheel 23 and the driven wheel 24, the tension wheel 25 and the guide wheel 26 which is relatively parallel to the driving wheel 23, passes through the through hole on the mounting frame 102, passes downwards through the positioning wheel 27, and finally is wound and connected to the ear belt forming device 30. The ear wire feeding device 20 is continuously fed toward the ear band forming device 30 along the winding direction of the ear wire 200 by the driving of the rotary driver 22.

Referring to fig. 5 to 9, the ear band forming device 30 includes a winding flange 31, two positioning members 32 and four clamping members 33, the two positioning members 32 are symmetrically protruded from the left and right opposite sides of the winding flange 31, the four clamping members 33 are symmetrically disposed on the front and rear opposite sides of the winding flange 31, and the clamping members 33 can be driven by a linear driver disposed corresponding to the clamping members 33 to rotate around the winding flange 31, so as to clamp or release the ear line 200 wound between the winding flange 31 and the clamping members 33. The winding disc 31 can drive the ear wire 200 clamped and fixed between the clamping pieces 33 and the winding disc 31 to rotate a certain angle around the positioning piece 32 under the driving of the rotary driver 311 connected with the winding disc 31, and the positioning piece 32 is arranged in a convex manner, so that the supporting and positioning of the ear wire 200 with certain elasticity can be effectively ensured in the winding process, the ear wire 200 can be alternately wound and positioned between the two positioning pieces 32 and the two adjacent clamping pieces 33, and the ear wire section 201 meeting the requirements is formed uninterruptedly, so that the ear wire section 201 is cut off from the ear wire 200 to be welded on the mask body.

The clamping member 33 and the output end 331 of the linear actuator can be detachably abutted, and the output end 331 of the linear actuator can be linearly moved up and down to be abutted against or separated from the clamping member 33 so as to drive the clamping member 33 to rotate, thereby clamping or loosening the ear wire 200 wound between the reel 31 and the clamping member 33.

Specifically, the outer end of the positioning member 32 is provided with a first winding surface 321 with a certain radian, two second winding surfaces 312 symmetrically arranged are respectively disposed at positions corresponding to each positioning member 32 on the front and rear opposite sides of the winding disc 31, a clamping member 33 is disposed beside each second winding surface 312, and the clamping member 33 clamps and fixes the ear wire 200 wound on the winding disc 31 to the second winding surfaces 312. The second winding surface 312 may be a vertical surface. Preferably, the spacing between the positioning member 32 and the wire wrap 31 is adjustable to accommodate the desired ear strap length for different masks.

Specifically, in this embodiment, the wire wrapping disc 31 is substantially "i" shaped, and a recessed area 31a is provided between two second wire wrapping surfaces 312 on the same side on the wire wrapping disc 31, and the recessed area 31a can provide a moving space for subsequent shearing operation and welding operation, so that the utility model discloses an ear line section 201 formed by the wire wrapping positioning in the ear belt welding machine 100 does not need to be moved and transported, and more does not need to be positioned again, and only needs to complete corresponding cutting and welding operation at the welding position 10 a. The winding plate 31 in this embodiment not only can place the positioning member 32 and the holding member 33 and drive them to rotate, but also can simplify the structure and optimize the manufacturing process, thereby reducing the manufacturing cost.

In order to prevent the ear wire 200 from slipping off the second winding surface 312, the ear band forming device 30 further includes a retaining member 34, wherein the retaining member 34 is disposed in a one-to-one correspondence with the second winding surface 312 and is protruded from the upper end of the corresponding second winding surface 312. The anti-slip means 34 can be formed by a partial extension around the flange 31 itself, further simplifying the structure. Specifically, the joints of the upper end surface 313 of the winding disc 31 and the front and rear end surfaces thereof extend in the direction away from the winding disc 31, so that the boss-shaped retaining pieces 34 are formed at the upper ends of the corresponding second winding surfaces 312. In this embodiment, four positioning blocks 35 may be further added to the reel 31, and the four clamping members 33 may be pivoted to the side ends of the corresponding positioning blocks 35 in a one-to-one correspondence manner.

Referring to fig. 1, 2, 5 and 6, in order to cut and separate the ear line segment 201 from the ear line 200, the ear band forming device 30 further includes a cutting member 36, and the cutting member 36 is disposed on at least one of the front and rear sides of the receiving plate 31, and is located between the two holding members 33 on the side, i.e., at the side end of the recessed area 31 a. The wire winding disc 31 is driven by the rotary driver 311 connected with the wire winding disc to rotate 180 degrees each time, so that an ear wire section 201 which is in accordance with the length and the shape can be formed by winding connection between the positioning piece 32 and the two clamping pieces 33 adjacent to the positioning piece, at the moment, the cutting piece 36 arranged between the two clamping pieces 33 is driven by the movable driver connected with the positioning piece to move to a position which is close to the position where the ear wire section 201 between the two clamping pieces 33 is connected with the ear wire 200, so that the ear wire section 201 is cut and separated from the whole ear wire 200, and an ear belt is formed.

Referring to fig. 5 and 6, in order to weld the ear band to the mask body, the welding device 40 includes a welding head 41 and an ultrasonic device (not shown), the ultrasonic device is disposed at the lower side of the welding position 10a of the conveying device 10, and the welding head 41 is disposed at the upper side of the welding position 10a of the conveying device 10, i.e., at the upper end of the recessed area 31 a. The welding pressure head 41 can move linearly up and down relative to the conveying device 10 under the driving of the linear driver 411 connected with the welding pressure head so as to press the welding end of the ear strap abutted to the mask body, and the arrangement corresponds to the situation that the winding disc 31 drives the ear strap to move downwards until the ear strap abuts to the mask; or, the moving welding pressure head 41 can press the two welding ends of the head and the tail of the ear band above the mask body to the butt joint with the mask body in one-to-one correspondence, and at the moment, the corresponding winding disc 31 is arranged to drive the ear band to move down to the condition that the ear band is close to the mask but is not butted.

Specifically, the number of the welding pressure heads 41 is two, and the two welding pressure heads 41 are correspondingly arranged above the two recessed areas 31a on the front and rear opposite sides of the winding disc 31, so that the welding of the two welding ends of the ear band and the mask body can be synchronously realized under the cooperation of the ultrasonic instrument, and the efficiency is effectively improved.

Specifically, the ear band welding device 40 further includes a separating element 42, the separating element 42 is disposed above the welding position 10a and beside the welding pressure head 41, and the separating element 42 can move linearly up and down relative to the conveying device 10 under the driving of a linear driver connected thereto, so that the ear band welded to the mask body can be separated from the ear band forming device 30.

In order to optimize the structure, the welding pressure head 41 and the ear band forming device 30 can move linearly and synchronously to be close to the mask body, and the welding pressure head 41 can also move linearly up and down relative to the ear band forming device 30 to press against the welding end of the ear band. Specifically, the welding pressure head 41 and the ear band forming device 30 are installed on the mounting seat 103 below the mounting frame 102, and the mounting seat 103 is connected with the output end of the linear driver 104, so that the welding pressure head 41 and the ear band forming device 30 can be driven to move up and down synchronously to be close to the mask body located at the welding position 10 a. The rotary driver 311 and the linear driver 411 are respectively arranged on the mounting seat 103, and the output end of the rotary driver 311 is connected with the receiving disc 31 suspended at the bottom end of the mounting seat 103, so that the receiving disc 31 can be driven to rotate.

It should be noted that, as shown in fig. 1 and fig. 2, in the preferred embodiment of the present invention, when two ear band forming devices 30 are arranged in sequence along the conveying direction of the conveying device 10, the rotating directions of the two winding disks 31 are opposite, wherein the winding disk 31 at the front side rotates clockwise, and the winding disk 31 at the rear side rotates counterclockwise. Correspondingly, the ear wire feeding device 20 on the front side is fixed at the opposite upper left end of the corresponding mounting frame 102, the positioning wheel 27 thereof moves backwards relatively, and the free end of the ear wire 200 guided out by the positioning wheel 27 is clamped and fixed between the clamping piece 33 at the left rear end of the winding disc 31 and the winding disc 31 along the conveying direction of the conveying device 10, so that the shearing piece 36 of the ear belt forming device 30 on the front side can be arranged at the opposite rear right end of the conveying device 10, and the arrangement is more reasonable for the position between the two clamping pieces 33 on the rear side. The ear wire feeding device 20 at the rear side is fixed at the opposite upper right end of the corresponding mounting frame 102, and the free end of the ear wire 200 guided out by the positioning wheel 27 is clamped and fixed between the clamping piece 33 at the right rear end of the winding disc 31 and the winding disc 31 along the conveying direction of the conveying device 10, so that the cutting piece 36 of the ear belt forming device 30 at the rear side can be arranged at the opposite rear left end of the conveying device 10 and at the position between the two clamping pieces 33 at the rear side.

The working principle of the ear belt welding machine 100 of the present invention is described below with reference to fig. 1 to 9:

firstly, after the free ends of the two-ear wires 200 are correspondingly clamped in the corresponding two-ear belt forming devices 30 according to the winding direction, the equipment is started, and under the instruction of a control system, the chain transmission mechanism 11 of the transmission device 10 starts to sequentially transmit the mask body to the two-ear belt forming devices 30; the ear band forming device 30 at the welding position 10a on the front side acts, rotates around the connecting disc 31 clockwise by 180 degrees, and the corresponding ear line 200 is wound and positioned between the positioning piece 32 and the two adjacent clamping pieces 33, so that an ear line segment 201 is formed on the opposite right side of the mask body; after the corresponding cutting piece 36 is moved forward to separate the ear line segment 201 from the ear line 200 to form the ear band, the cutting piece 36 is moved backward to be reset; the winding disc 31 drives the ear belt to linearly move downwards to abut against the mask body on the welding position 10a, and meanwhile, the two welding pressure heads 41 synchronously move downwards; then, the two welding pressure heads 41 continuously move downwards to be correspondingly abutted against the two ends of the ear belts, the ultrasonic instrument acts, so that the welding of the right ear belt on the mask body is completed, and the welding pressure heads 41 move upwards; then, the separating member 42 moves downwards to push the ear strap from the gap between the positioning member 32 and the receiving coil 31, so that the ear strap is separated from the positioning member 32, the clamping member 33 then moves away from the receiving coil 31, the clamping of the ear strap is released, and the receiving coil 31 moves upwards for resetting; the mask body which completes the welding of the right ear strap is conveyed to the ear strap forming device 30 of the welding position 10a at the rear side, the ear strap forming device 30 acts, the winding disc 31 rotates 180 degrees in the anticlockwise direction, so that an ear strap segment 201 is formed at the opposite left side of the mask body, the rest shearing and welding operations are basically the same as the previous ear strap forming device 30, the description is omitted, a mask is formed after the welding of the left ear strap on the mask body is completed, and the chain transmission mechanism 11 conveys the formed mask towards the direction of the belt transmission mechanism 12, so that the material is discharged.

The automatic line production for welding the ear belts on the left side and the right side of the mask body can be completed by continuously repeating the operation.

Compared with the prior art, the utility model discloses ear strap welding machine 100 corresponds through conveyer 10 and ear wire loading attachment 20 and conveys gauze mask body and ear wire to ear strap forming device 30 department automatically, carry out the kinking location to ear wire 200 by ear strap forming device 30 in order to form the ear wire section 201 that accords with the ear strap requirement, and cut out separation in order to form the ear strap with ear wire section 201 from ear wire 200, and butt fusion device 40 is under ear strap forming device 30's cooperation, with the ear strap butt fusion on the gauze mask body and form the gauze mask, convey the gauze mask with the ejection of compact by conveyer 10 again. This local simple structure can realize to ear wire 200 wraparound in order to form ear wire section 201, ear wire section 201 and the separation of ear wire 200 in order to form the automatic pipelining of ear area and gauze mask body butt fusion in order to form the gauze mask, and assembly accuracy is high and high-efficient. In addition, the welding of the ear line segment 201, the ear belt and the mask body is completed at the ear belt forming device 30, so that the movement of the ear line segment 201 and the ear belt and the re-positioning after the movement are effectively reduced, the efficiency and the assembly precision are further improved, and the whole structure is compact and the layout is reasonable.

The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the invention, which is defined by the appended claims.

Claims (9)

1. An ear strap welding machine is used for assembling and connecting an ear strap on a mask body to form a mask and is characterized by comprising a conveying device, an ear wire feeding device, an ear strap forming device and a welding device, wherein the conveying device and the ear wire feeding device respectively convey the mask body and the ear wire to the ear strap forming device; the conveying device comprises a chain transmission mechanism and a belt transmission mechanism which are in butt joint, the chain transmission mechanism is used for conveying the mask body to the ear belt forming device, conveying the mask formed at the ear belt forming device to the belt transmission mechanism, and the belt transmission mechanism conveys the mask to discharge materials.

2. The ear strap welding machine according to claim 1, characterized in that the ear strap welding machine comprises two ear strap forming devices, the two ear strap forming devices are sequentially arranged along the conveying direction of the conveying device and are symmetrically arranged, and the ear wire feeding device and the welding device are arranged in a one-to-one correspondence with the ear strap forming devices.

3. The ear strap welding machine of claim 1, wherein the conveying device further comprises a limiting member suspended at an edge of a conveying surface of the chain transmission mechanism in a conveying direction of the chain transmission mechanism, and a distance between the limiting member and the conveying surface of the chain transmission mechanism corresponds to a thickness dimension at opposite edges of the mask body.

4. The ear strap welding machine according to claim 1, wherein the ear strap forming device is erected above the welding position of the conveying device and can move linearly up and down relative to the conveying device, so that two welding ends of the ear strap are abutted or close to two welding points of the mask body at the welding position in a one-to-one correspondence manner.

5. The ear strap welding machine of claim 1, characterized in that the ear strap forming device comprises a winding flange, two positioning members and four clamping members, wherein the two positioning members are symmetrically and convexly arranged on the left and right opposite sides of the winding flange, the four clamping members are symmetrically arranged on the front and back opposite sides of the winding flange, the clamping members can rotate relative to the winding flange to clamp or loosen an ear wire wound between the winding flange and the clamping members, and the winding flange can drive the clamping members to clamp the ear wire fixed between the clamping members and the winding flange to rotate a certain angle around the positioning members, so that the ear wire can be alternately wound between the two positioning members and the two adjacent clamping members, and an ear wire segment meeting requirements is formed uninterruptedly.

6. The ear strap welding machine of claim 5 wherein said ear strap forming means further comprises a cutting member disposed on at least one of said front and rear sides of said reel at a location between said clamping members on said one side for separating the ear strap portion from the cut on said ear wire.

7. The ear strap welding machine according to claim 1, wherein a welding pressure head of the welding device is arranged above a welding position of the conveying device and can move linearly up and down relative to the conveying device to abut against the welding ends of the ear straps on the mask body, or the two welding ends of the ear straps above the mask body are abutted against two welding points of the mask body in a one-to-one correspondence manner.

8. The ear strap welding machine of claim 7, wherein the welding ram and the ear strap forming device are linearly movable in synchronization to approach the mask body, and the welding ram is also linearly movable up and down relative to the ear strap forming device to press against the welding end of the ear strap.

9. The ear strap welding machine of claim 7, wherein the welding device further comprises a separating member, the separating member is arranged above the welding position and beside the welding pressure head, and the separating member can move linearly up and down relative to the conveying device, so that the ear strap welded on the mask body can be separated from the ear strap forming device.

Images