CN111745987A - Ear belt welding equipment for preparing nano mask - Google Patents
Ear belt welding equipment for preparing nano mask Download PDFInfo
- Publication number
- CN111745987A CN111745987A CN202010414953.8A CN202010414953A CN111745987A CN 111745987 A CN111745987 A CN 111745987A CN 202010414953 A CN202010414953 A CN 202010414953A CN 111745987 A CN111745987 A CN 111745987A
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- Prior art keywords
- welding
- plate
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- preparing
- turnover block
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/74—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area
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- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D13/00—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches
- A41D13/05—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches protecting only a particular body part
- A41D13/11—Protective face masks, e.g. for surgical use, or for use in foul atmospheres
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- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41H—APPLIANCES OR METHODS FOR MAKING CLOTHES, e.g. FOR DRESS-MAKING OR FOR TAILORING, NOT OTHERWISE PROVIDED FOR
- A41H43/00—Other methods, machines or appliances
- A41H43/04—Joining garment parts or blanks by gluing or welding ; Gluing presses
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/78—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/48—Wearing apparel
- B29L2031/4807—Headwear
- B29L2031/4835—Masks
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Physical Education & Sports Medicine (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The invention relates to ear band welding equipment for preparing a nano mask, which is characterized by comprising a rack, a feeding mechanism, a cutting mechanism and a welding mechanism which are arranged on the rack, the welding mechanism comprises a welding device and two welding plates, the welding device is fixedly arranged at the top of the fixed bracket, two welding plates are distributed at the front end and the rear end of the turnover block, connecting columns are vertically arranged at the tops of the two welding plates and are fixedly connected with the bottom of the lifting plate, notches are symmetrically arranged at the opposite sides of the two welding plates, two welding heads are arranged at the notches and correspond to the positions of the convex parts at the two sides of the turnover block, the two welding heads are connected with a welding device through leads, both sides of the top of the welding plate are provided with elastic pressing rods, and the ear belt lines in the lead grooves at the two sides of the turnover block are pressed and fixed through the elastic fixing plate. The automatic degree is high, effectively reduces workman's intensity of labour, improves gauze mask production efficiency greatly.
Description
Technical Field
The invention belongs to the technical field of mask production equipment, and particularly relates to ear band welding equipment for preparing a nano mask.
Background
Health gauze mask is one of the indispensable consumptive material in medical treatment and the special operation of dustproof gas defense, mainly used filters the air that gets into the mouth nose, droplet in the separation air, material such as dust and pollen, the gauze mask mainly hangs through the ear area and detains on human ear, make gauze mask and face can laminate, the ear area of gauze mask mainly fixes the both sides at the gauze mask through the welded mode when producing, the material loading in the ear area in a lot of workshops at present, tailor, ultrasonic fusion splices and output process all needs an operation personnel to bend into the semicircle form with the gauze mask, and cooperate the welding machine to connect and carry out welded fastening to the ear area, this mode cost of labor is high, low in production efficiency, be unfavorable for the demand of mass production gauze mask.
Disclosure of Invention
Aiming at the problems, the invention discloses ear band welding equipment for preparing a nano mask, which can realize automatic feeding, cutting and welding and greatly improve the production efficiency.
The specific technical scheme is as follows:
an ear band welding device for preparing a nano mask comprises a rack, and a feeding mechanism, a cutting mechanism and a welding mechanism which are arranged on the rack, wherein a conveying belt is arranged on the rack, a feeding frame is arranged at the top of the rack, a feeding roller is arranged on the feeding frame, and two wire placing grooves are formed in the feeding roller;
the feeding mechanism comprises mounting seats, turnover blocks and a servo motor, the mounting seats are arranged on two sides of a rack, the turnover blocks are rotatably arranged between the mounting seats, the turnover blocks are in H-shaped structures, the bottom ends of the turnover blocks are positioned above a conveying belt, rotating shafts are arranged on two sides of the turnover blocks and are rotatably connected with the mounting seats, the servo motor is fixedly arranged on one side of the mounting seats, an output shaft of the servo motor is fixedly connected with one of the rotating shafts, positioning cylinders are arranged on the side walls of the front end and the rear end of each turnover block, the output directions of piston rods of the two positioning cylinders are opposite, push plates are arranged on the piston rods of the two positioning cylinders, and two positioning rods are horizontally arranged at the upper end and the lower end of one side of each push plate; the upper end and the lower end of two sides of the turnover block are respectively provided with a protruding part, the top of each protruding part is provided with a cutting groove, the cutting grooves are arranged along the directions of two sides of the rack, the top of each protruding part is provided with a limiting groove used for placing an eartape line in the direction vertical to the cutting groove, the limiting grooves are communicated with the cutting grooves, the side walls of the limiting grooves, close to one side of the push plate, are respectively provided with two positioning holes, and the two positioning holes are respectively provided with two positioning rods; a lead groove for placing an ear belt line is vertically formed between the convex parts at the upper end and the lower end of the turnover block, and the upper end and the lower end of the lead groove are respectively communicated with the two limiting grooves;
the cutting mechanism comprises a fixed support, a driving air cylinder and pneumatic scissors, the fixed support is arranged on the rack and is positioned above the mounting seat, the driving air cylinder is fixedly arranged at the top of the fixed support, a piston rod of the driving air cylinder penetrates through the top of the fixed support and is connected with a lifting plate, two sides of the bottom of the lifting plate are respectively and vertically provided with the pneumatic scissors, and the two pneumatic scissors are positioned right above the cutting groove on the turnover block;
welding mechanism includes welding set and welded plate, welding set is fixed to be set up at the fixed bolster top, welded plate quantity is two, and two welded plates distribute in both ends around the upset piece, and two welded plate tops all are equipped with the spliced pole perpendicularly, the bottom fixed connection of spliced pole and lifter plate, the notch has been seted up to the relative side symmetry of two welded plates, notch department all is equipped with two soldered connections, and the position of two soldered connections is corresponding with the bellying position of upset piece both sides, and two soldered connections pass through the wire and are connected with welding set, welded plate top both sides all are equipped with the elasticity and press the depression bar, and pass through the fixed plate of elasticity is pressed fixedly to the ear area line in the lead wire groove of upset piece both sides.
Further, elastic fixation plate is including fixed cover, telescopic link, press the clamp plate, fixed cover is fixed to be set up on the welded plate, the telescopic link bottom is equipped with the pull rod, the pull rod lower extreme runs through fixed cover top and is equipped with the stopper in fixed cover inner chamber, and is located to be equipped with the spring on the pull rod in fixed cover inner chamber, and telescopic link top level sets up press the clamp plate, and press clamp plate one end to be located the top of notch.
Furthermore, the bottom of the pressing plate is provided with a convex strip, and the position of the convex strip corresponds to the position of the lead groove on the turnover block.
Furthermore, the positions of the convex parts on the two sides of the turnover block correspond to the positions of the two wire releasing grooves on the feeding roller.
Further, the distance between the notches on the two welding plates is larger than the width dimension of the turnover block.
Furthermore, the depth of the cutting groove is larger than that of the limiting groove.
Furthermore, the width dimension of the limiting groove is larger than the diameter dimension of the welding head.
Furthermore, the push plate is of a T-shaped structure, and the length of the push plate is not greater than the width of the turnover block.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, the overturning block is firstly overturned to enable the ear belt line to be wound on the overturning block and to be positioned in the lead groove and the limiting groove, the push plate is pushed by the two positioning cylinders, the positioning rod is used for pressing and fixing the ear belt line in the limiting groove, the lifting plate is driven to descend by the driving cylinder, the pneumatic scissors are used for shearing the ear belt line in the cutting grooves at the upper end and the lower end of the overturning block, then the overturning block is overturned to be in a horizontal state, at the moment, the two ends of the sheared ear belt line fall onto the mask of the conveying belt under the influence of gravity, and finally the lifting plate is driven to descend by the driving cylinder, so that the welding head on the welding plate is used for welding and fixing the two ends of the ear belt line on the mask, the automatic degree is high, the labor intensity.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is an enlarged schematic view of a point a in fig. 1.
Fig. 3 is a side sectional view of the present invention.
Fig. 4 is a schematic structural view of the turning block of the present invention.
Fig. 5 is a perspective view of the turning block of the present invention.
FIG. 6 is a schematic view of the structure of the push plate according to the present invention.
FIG. 7 is a perspective view of a weld plate of the present invention.
Fig. 8 is a schematic structural view of the elastic fixing plate of the present invention.
FIG. 9 is a schematic view of the welding plates of the present invention.
Description of the reference numerals
The automatic feeding device comprises a frame 1, a conveying belt 2, a feeding frame 3, a feeding roller 31, a wire releasing groove 311, a mounting seat 4, a turning block 41, a rotating shaft 411, a protruding part 412, a cutting groove 413, a limiting groove 414, a positioning hole 4141, a wire leading groove 415, a servo motor 42, a positioning cylinder 43, a push plate 44, a positioning rod 441, a fixing support 5, a driving cylinder 51, a lifting plate 52, pneumatic scissors 53, a welding device 6, a welding plate 61, a notch 611, a welding head 62, a connecting column 63, an elastic fixing plate 64, a fixing sleeve 641, an expansion rod 642, a pull rod 643, a limiting block 644, a pressing plate 645, a convex strip 6451, a spring 646 and a mask 7.
Detailed Description
In order to make the technical scheme of the invention clearer and clearer, the invention is further described with reference to the accompanying drawings, and any scheme obtained by carrying out equivalent replacement and conventional reasoning on the technical characteristics of the technical scheme of the invention falls into the protection scope of the invention. The fixing and the arrangement of the fixing and the connection are all general connection modes in the mechanical field, and the fixing and the connection can be performed by welding, bolt and nut connection and screw connection.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
The pneumatic scissors of the invention are automatic sheet pneumatic scissors AM-10+100S, which are purchased from Strong hardware tools, Inc. in Dongguan and are not described herein for the prior art.
The positioning cylinder type of the invention is MGJ series MGJ6-5-10-15-20 small-sized cylinder which is purchased from the Fine pneumatic Co., Ltd in Leqing, and for the prior art, the positioning cylinder type is not described herein.
As shown in the figure, the ear belt welding equipment for preparing the nano mask comprises a rack, and a feeding mechanism, a cutting mechanism and a welding mechanism which are arranged on the rack, wherein a conveying belt is arranged on the rack, a feeding frame is arranged at the top of the rack, a feeding roller is arranged on the feeding frame, two wire releasing grooves are formed in the feeding roller, and two sets of ear belt wires for welding are wound in the two wire releasing grooves;
the feeding mechanism comprises mounting seats, turnover blocks and a servo motor, the mounting seats are arranged on two sides of a rack, the turnover blocks are rotatably arranged between the mounting seats, each turnover block is of an H-shaped structure, the bottom end of each turnover block is located 3cm above a conveying belt, rotating shafts are arranged on two sides of each turnover block and are rotatably connected with the mounting seats, the servo motor is fixedly arranged on one side of each mounting seat, an output shaft of the servo motor is fixedly connected with one rotating shaft, the servo motor drives the turnover blocks to rotate 90 degrees each time after being arranged, positioning cylinders are arranged on the side walls of the front end and the rear end of each turnover block, the output directions of piston rods of the two positioning cylinders are opposite, push plates are arranged on the piston rods of the two positioning cylinders, and two positioning rods are horizontally arranged at the upper end and the lower end of one side of each push; the upper end and the lower end of two sides of the turnover block are respectively provided with a protruding part, the top of each protruding part is provided with a cutting groove, the cutting grooves are arranged along the directions of two sides of the rack, the top of each protruding part is provided with a limiting groove used for placing an ear belt line in the direction vertical to the cutting groove, the limiting grooves are communicated with the cutting grooves, the side walls of the limiting grooves, close to one side of the push plate, are respectively provided with two positioning holes, two positioning rods are respectively arranged in the two positioning holes, and the push plate is pushed by a piston rod of a positioning cylinder, so that the positioning rods penetrate through the positioning holes and press and fix the ear; lead grooves for placing the ear belt lines are vertically formed between the convex parts at the upper end and the lower end of the turnover block, the upper end and the lower end of each lead groove are respectively communicated with the two limiting grooves, and the turnover block is driven to rotate through a servo motor, so that the ear belt lines on the feeding roller are wound in the limiting grooves and the lead grooves on the turnover block;
the cutting mechanism comprises a fixed support, a driving air cylinder and pneumatic scissors, the fixed support is arranged on the rack and is positioned above the mounting seat, the driving air cylinder is fixedly arranged at the top of the fixed support, a piston rod of the driving air cylinder penetrates through the top of the fixed support and is connected with a lifting plate, two sides of the bottom of the lifting plate are respectively and vertically provided with the pneumatic scissors, and the two pneumatic scissors are positioned right above the cutting groove on the turnover block;
welding mechanism includes welding set and welded plate, welding set is fixed to be set up at the fixed bolster top, welded plate quantity is two, and two welded plates distribute in both ends around the upset piece, and two welded plate tops all are equipped with the spliced pole perpendicularly, the bottom fixed connection of spliced pole and lifter plate, the notch has been seted up to the relative side symmetry of two welded plates, notch department all is equipped with two soldered connections, and the position of two soldered connections is corresponding with the bellying position of upset piece both sides, and two soldered connections pass through the wire and are connected with welding set, welded plate top both sides all are equipped with the elasticity and press the depression bar, and pass through the fixed plate of elasticity is pressed fixedly to the ear area line in the lead wire groove of upset piece both sides.
Further, elastic fixation plate is including fixed cover, telescopic link, press the clamp plate, fixed cover is fixed to be set up on the welded plate, the telescopic link bottom is equipped with the pull rod, the pull rod lower extreme runs through fixed cover top and is equipped with the stopper in fixed cover inner chamber, and is located to be equipped with the spring on the pull rod in fixed cover inner chamber, and telescopic link top level sets up press the clamp plate, and press clamp plate one end to be located the top of notch.
Furthermore, the bottom of the pressing plate is provided with a convex strip, and the position of the convex strip corresponds to the position of the lead slot on the turnover block, so that the pressing plate fixes the ear band wire on the turnover block in a horizontal state through the convex strip.
Furthermore, the positions of the convex parts on the two sides of the turnover block correspond to the positions of the two wire releasing grooves on the feeding roller.
Further, the distance between the notches on the two welding plates is larger than the width dimension of the turnover block.
Furthermore, the depth of the cutting groove is larger than that of the limiting groove.
Furthermore, the width dimension of the limiting groove is larger than the diameter dimension of the welding head.
Furthermore, the push plate is of a T-shaped structure, and the length of the push plate is not greater than the width of the turnover block.
The working principle is as follows:
when the pneumatic cutting machine works, the servo motor drives the turnover block to turn over, so that ear belt lines are wound in the lead grooves and the limiting grooves at the two ends of the turnover block, the push plate is pushed by the two positioning cylinders, the positioning rods press and fix the ear belt lines in the limiting grooves, the driving cylinder drives the lifting plate to move downwards during cutting, so that the pneumatic scissors cut the ear belt lines in the cutting grooves at the upper end and the lower end of the turnover block, then the servo motor drives the turnover block to turn over to be in a horizontal state, the two ends of the cut ear belt lines fall onto a mouth cover of the conveying belt under the influence of gravity, the two ends of the ear belt lines are positioned below two welding heads, then the driving cylinder drives the lifting plate to move downwards, so that the welding heads on the welding plate weld and fix the two ends of the ear belt lines on the mouth cover, and finally the positioning cylinder resets to enable the ear belt lines to completely fall off, simultaneously the elastic fixation board is when descending along with the welded plate, presses the pressing plate to press on the lateral wall of upset piece, and the telescopic link drives the spring and is in compression state this moment for pressing the pressing plate and fixing the ear area line in the lead wire groove, prevent that remaining ear area line from droing from the upset piece.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are also included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (8)
1. An ear band welding device for preparing a nano mask is characterized by comprising a rack, and a feeding mechanism, a cutting mechanism and a welding mechanism which are arranged on the rack, wherein a conveying belt is arranged on the rack; the feeding mechanism comprises mounting seats, turnover blocks and a servo motor, wherein the mounting seats are arranged on two sides of a rack, the turnover blocks are rotatably arranged between the mounting seats, rotating shafts are arranged on two sides of each turnover block and are rotatably connected with the mounting seats, the servo motor is arranged on one side of each mounting seat, an output shaft of the servo motor is fixedly connected with one rotating shaft, positioning cylinders are arranged on side walls of two ends of each turnover block, the output directions of the two positioning cylinders are opposite, push plates are arranged on piston rods of the two positioning cylinders, and two positioning rods are arranged on one side of each push plate; the upper end and the lower end of two sides of the turnover block are respectively provided with a protruding part, the top of each protruding part is provided with a cutting groove, the top of each protruding part is provided with a limiting groove in the direction perpendicular to the cutting groove, the limiting grooves are communicated with the cutting grooves, one side of each limiting groove is provided with two positioning holes, and the two positioning holes are respectively provided with two positioning rods; lead slots are vertically formed between the convex parts at the upper end and the lower end of the turnover block, and the upper end and the lower end of each lead slot are respectively communicated with the two limiting slots; the cutting mechanism comprises a fixed support, a driving air cylinder and pneumatic scissors, the fixed support is arranged on the rack and is positioned above the mounting seat, the driving air cylinder is fixedly arranged at the top of the fixed support, a piston rod of the driving air cylinder penetrates through the top of the fixed support and is connected with a lifting plate, two sides of the bottom of the lifting plate are respectively and vertically provided with the pneumatic scissors, and the two pneumatic scissors are positioned right above the cutting groove on the turnover block; welding mechanism includes welding set and welded plate, welding set is fixed to be set up at the fixed bolster top, welded plate quantity is two, and two welded plates distribute in both ends around the upset piece, and two welded plate tops all are equipped with the spliced pole perpendicularly, the bottom fixed connection of spliced pole and lifter plate, the notch has been seted up to the relative side symmetry of two welded plates, notch department all is equipped with two soldered connections, and the position of two soldered connections is corresponding with the bellying position of upset piece both sides, and two soldered connections pass through the wire and are connected with welding set, welded plate top both sides all are equipped with the elasticity and press the depression bar, and pass through the fixed plate of elasticity is pressed fixedly to the ear area line in the lead wire groove of upset piece both sides.
2. The ear band welding device for preparing nano mask according to claim 1, wherein the elastic fixing plate comprises a fixing sleeve, a telescopic rod and a pressing plate, the fixing sleeve is fixedly arranged on the welding plate, the bottom end of the telescopic rod is provided with a pull rod, the lower end of the pull rod penetrates through the top of the fixing sleeve, a limiting block is arranged in the inner cavity of the fixing sleeve, a spring is arranged on the pull rod in the inner cavity of the fixing sleeve, the top end of the telescopic rod is horizontally provided with the pressing plate, and one end of the pressing plate is positioned above the notch.
3. The ear band welding equipment for preparing the nano mask as claimed in claim 2, wherein the bottom of the pressing plate is provided with a convex strip, and the position of the convex strip corresponds to the position of the lead groove on the turnover block.
4. The ear band welding device for preparing the nano mask as claimed in claim 1, wherein the positions of the protrusions at the two sides of the turnover block correspond to the positions of the two wire releasing grooves on the feeding roller.
5. The ear band welding apparatus for preparing a nano-mask as set forth in claim 1, wherein the distance between the notches of the two welding plates is greater than the width dimension of the turning block.
6. The ear band welding device for preparing a nano mask according to claim 1, wherein the depth of the cutting groove is greater than that of the limiting groove.
7. The ear band welding equipment for preparing a nano mask as claimed in claim 1, wherein the width dimension of the limiting groove is larger than the diameter dimension of the welding head.
8. The ear band welding equipment for preparing a nano mask according to claim 1, wherein the push plate is in a T-shaped structure, and the length of the push plate is not more than the width of the turnover block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010414953.8A CN111745987A (en) | 2020-05-15 | 2020-05-15 | Ear belt welding equipment for preparing nano mask |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010414953.8A CN111745987A (en) | 2020-05-15 | 2020-05-15 | Ear belt welding equipment for preparing nano mask |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111745987A true CN111745987A (en) | 2020-10-09 |
Family
ID=72673327
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010414953.8A Withdrawn CN111745987A (en) | 2020-05-15 | 2020-05-15 | Ear belt welding equipment for preparing nano mask |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111745987A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203357892U (en) * | 2013-06-28 | 2013-12-25 | 东莞市宏祥机械设备有限公司 | Ultrasonic respirator ear band welding machine |
| CN206663814U (en) * | 2017-03-13 | 2017-11-24 | 江阴市檬佳非织布制品有限公司 | Respirator ear belt bonding machine and its trimming unit |
-
2020
- 2020-05-15 CN CN202010414953.8A patent/CN111745987A/en not_active Withdrawn
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203357892U (en) * | 2013-06-28 | 2013-12-25 | 东莞市宏祥机械设备有限公司 | Ultrasonic respirator ear band welding machine |
| CN206663814U (en) * | 2017-03-13 | 2017-11-24 | 江阴市檬佳非织布制品有限公司 | Respirator ear belt bonding machine and its trimming unit |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20201009 |