CN108708157B - Broken needle positioning device for needle detector - Google Patents
Broken needle positioning device for needle detector Download PDFInfo
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- CN108708157B CN108708157B CN201810427771.7A CN201810427771A CN108708157B CN 108708157 B CN108708157 B CN 108708157B CN 201810427771 A CN201810427771 A CN 201810427771A CN 108708157 B CN108708157 B CN 108708157B
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- needle
- fixedly connected
- side wall
- chain
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06H—MARKING, INSPECTING, SEAMING OR SEVERING TEXTILE MATERIALS
- D06H3/00—Inspecting textile materials
- D06H3/14—Detecting and removing metal particles, e.g. broken needles, or card clothing, from fabrics
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Textile Engineering (AREA)
- Treatment Of Fiber Materials (AREA)
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Abstract
The invention discloses a broken needle positioning device for a needle detector, which comprises a needle detector body, a positioning frame, a conveyor belt and a plurality of transmission rollers, the positioning frame is fixedly connected on the base of the needle detector body, the side wall of the positioning frame is fixedly connected with the detection frame of the needle detector body, through the combination of the positioning frame, the chain and the push plate, the needle breakage position can be automatically positioned without manual searching after the needle breakage detection of the needle detection machine, the quick needle breakage detection of workers is ensured, the phenomenon that the workers are scratched by the broken needle in the searching process and when the broken needle is detected is avoided, the chain pushes the push plate to move on the clothes for investigation, the searchlight can indicate the definite position of the broken needle, the broken needle can be conveniently and quickly detected by the working personnel, after the conveyor belt is restarted, the chain shrinkage recovery device effectively improves the detection speed of broken needles and improves the working efficiency of the needle detection machine.
Description
Technical Field
The invention relates to the technical field of clothing detection, in particular to a broken needle positioning device for a needle detector.
Background
Before the sewn products enter the market, the products need to be detected for metal foreign matters so as to prevent the harm to human bodies, and a device for detecting is called a needle detector. The needle checking machine on the current market has the working principle that: when commodity through needle checking machine has broken needle or contains the material of metal inserted sheet class, needle checking machine will automatic alarm to the conveyer belt stops transporting, waits the manual work to take out the back with material such as broken needle, and the restart switch continues the operation, but during manual sorting, needs the manual work to grope comprehensively at the detection site, detects broken needle, and the power consumption consuming time, and grope the in-process and cause personnel's fish tail easily, influence inspection efficiency, consequently needs a needle checking machine that can fix a position the broken needle.
Disclosure of Invention
The present invention is directed to a broken needle positioning device for a needle checking machine, so as to solve the problems in the background art.
In order to achieve the purpose, the invention provides the following technical scheme: a broken needle positioning device for a needle detector comprises a needle detector body, a positioning frame, a conveyor belt and a plurality of transmission rollers, wherein the positioning frame is fixedly connected to a base of the needle detector body, the side wall of the positioning frame is fixedly connected with the detection frame of the needle detector body, the inner wall of the base of the needle detector body is rotatably connected with the transmission rollers, the transmission rollers are connected through the conveyor belt, a second rotating shaft is fixedly inserted in the center of one of the transmission rollers, one end of the second rotating shaft is fixedly connected with a first motor fixedly connected with the inner wall of the base of the needle detector body, the other end of the second rotating shaft is fixedly sleeved with a second gear, a first electromagnet is fixedly connected to the inner top wall of the positioning frame, a compression box which is slidably connected to the inner side wall of the positioning frame is arranged below the first electromagnet, and the compression box is connected with the base top wall of the needle detector body through a third spring, the top fixedly connected with that compresses tightly the box and the corresponding second electro-magnet of first electro-magnet, first opening has been seted up on the lateral wall of locating rack, compress tightly the box and keep away from the activity of the one end of locating rack inside wall and run through first opening, the inside sliding connection who compresses tightly the box has positioner, fixedly connected with and the corresponding controlling means of positioner on the inside wall of one side of examining needle machine body base, be connected with the trigger switch corresponding with first electro-magnet, second electro-magnet on the opposite side inside wall of examining needle machine body base.
Preferably, trigger switch includes carousel, first copper contact and elastic plate, the carousel rotates to be connected on the base inside wall of examining the needle machine body, the top of carousel is connected with the elastic plate inconsistent with the conveyer belt through the head rod, the bottom fixedly connected with second copper contact of carousel, examine first copper contact corresponding with second copper contact of fixedly connected with on the base inside wall of needle machine body, and first copper contact is connected with second copper contact through first spring.
Preferably, the inside positioner that compresses tightly the box includes chain and push pedal, fixedly connected with sliding sleeve on the inner wall that compresses tightly the box, sliding sleeve and fixedly connected with slide are run through in the one end activity of chain, the bottom of slide is rotated and is connected with the gyro wheel, the one end activity that the chain was kept away from to the slide runs through the opening and the fixedly connected with push pedal that compress tightly the box, the middle part meshing of chain has the second sprocket of rotation connection on compressing tightly the box inner wall, the one end activity in proper order that the slide was kept away from to the chain runs through the diapire that compresses tightly the box, the base roof of examining the needle machine body extends to the base inside of examining the needle machine body and is.
Preferably, the control device comprises a pressing block and a first chain wheel, the side edge of the chain is meshed with the first chain wheel, a third rotating shaft is fixedly inserted in the center of the first chain wheel, the output end of a second motor is fixedly connected to one end, far away from the first chain wheel, of the third rotating shaft, the second motor is fixedly connected to the inner wall of the base of the needle detector body, the pressing block is fixedly connected to the side wall of the chain, one end of a pull rope is fixedly connected to the bottom end of the pressing block, and the other end of the pull rope is connected with a tightening mechanism.
Preferably, the tightening mechanism comprises a first gear, a third electromagnet and a reel, one end of the pull rope, which is far away from the pressing block, is wound and connected with the reel, a rotating shaft is fixedly inserted in the center of the reel, one end of the rotating shaft is rotatably connected to the inner side wall of the base of the needle detector body, the other end of the rotating shaft is slidably sleeved with a first gear corresponding to the second gear, the side wall of the first gear is connected with a top plate which is abutted against the pressing block through a plurality of second connecting rods, an iron block is fixedly connected to the side wall of the other side of the first gear, a baffle plate which is in contact with the side wall of the first gear is arranged at the bottom of the iron block, a T-shaped frame is fixedly connected to the inner bottom wall of the base of the needle detector body, the bottom end of the baffle plate is slidably connected to a first chute formed in the top end face of the T-shaped frame, and the side wall of, one side of the baffle, which is far away from the first gear, is connected with a third connecting rod through a second spring.
Preferably, two second chutes symmetrically arranged are formed in the rotating shaft, a sliding block is fixedly connected to the side wall of the inner ring of the first gear, and the sliding block is connected to the second chutes in a sliding mode.
Preferably, the length of the chain is equal to the width of the conveyor belt.
Preferably, a searchlight is fixedly embedded in the side wall of the push plate.
Compared with the prior art, the invention has the beneficial effects that: through the locating rack, the combination of chain and push pedal, effectively realized examining the needle machine after detecting the broken needle, need not artifical investigation, the broken needle position of automatic positioning, ensure that the staff detects the broken needle fast, avoid the staff to seek the in-process by the broken needle fish tail, when detecting the broken needle, the conveyer belt stops the back, it moves down automatically to compress tightly the box, compress tightly the clothing, the chain of being convenient for promotes the push pedal and moves the investigation on the clothing, it blocks by the broken needle when the push pedal removes the in-process, searchlight can indicate the clear position of broken needle, the staff convenient and fast's of being convenient for detects the broken needle, the conveyer belt restarts the back, the first gear rotation of second gear meshing, shrink the chain, recovery unit, the speed of detecting of broken needle has effectively been improved, improve the work efficiency of examining the needle machine simultaneously.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged view of portion A;
FIG. 3 is a cross-sectional view B-B;
FIG. 4 is a schematic view of a compact case;
fig. 5 is a side view of the present invention.
In the figure: the needle detector comprises a needle detector body 1, a positioning frame 2, a conveyor belt 3, a transmission roller 4, a rotary table 5, a pressing box 6, a first electromagnet 7, a second electromagnet 8, a chain 9, a T-shaped frame 10, a first gear 11, an iron block 12, a third electromagnet 13, a baffle 14, a rotating shaft 15, a top plate 16, a pull rope 17, a reel 18, a pressing block 19, a first chain wheel 20, a second gear 21, a sliding plate 22, a push plate 23, a roller 24, a second chain wheel 25, a first copper contact piece 26, a second copper contact piece 27 and an elastic plate 28.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-5, the present invention provides a technical solution: a broken needle positioning device for a needle detector comprises a needle detector body 1, a positioning frame 2, a conveyor belt 3 and a plurality of transmission rollers 4, wherein the positioning frame 2 is fixedly connected on a base of the needle detector body 1, the side wall of the positioning frame 2 is fixedly connected with a detection frame of the needle detector body 1, the inner wall of the base of the needle detector body 1 is rotatably connected with the transmission rollers 4, the transmission rollers 4 are connected with each other through the conveyor belt 3, a second rotating shaft is fixedly inserted in the center of one transmission roller 4, one end of the second rotating shaft is fixedly connected with a first motor fixedly connected with the inner wall of the base of the needle detector body 1, the other end of the second rotating shaft is fixedly sleeved with a second gear 21, a first electromagnet 7 is fixedly connected on the inner top wall of the positioning frame 2, a compression box 6 connected on the inner side wall of the positioning frame 2 in a sliding manner is arranged below the first electromagnet 7, the compression box 6 is connected with the top wall of the base of the needle detector body 1 through a, the top end of the pressing box 6 is fixedly connected with a second electromagnet 8 corresponding to the first electromagnet 7, the side wall of the positioning frame 2 is provided with a first opening, one end of the pressing box 6, which is far away from the inner side wall of the positioning frame 2, movably penetrates through the first opening, the inside of the pressing box 6 is slidably connected with a positioning device, the positioning device inside the pressing box 6 comprises a chain 9 and a push plate 23, the inner wall of the pressing box 6 is fixedly connected with a sliding sleeve, one end of the chain 9 movably penetrates through the sliding sleeve and is fixedly connected with a sliding plate 22, the length of the chain 9 is equal to the width of the conveyor belt 3, the moving distance of the push plate 23 is ensured to be larger, the bottom end of the sliding plate 22 is rotatably connected with a roller 24, one end of the sliding plate 22, which is far away from the chain 9, movably penetrates through the opening of the pressing box 6 and is fixedly connected with the push plate 23, a searchlight is fixedly embedded on, one end of the chain 9, which is far away from the sliding plate 22, sequentially and movably penetrates through the bottom wall of the pressing box 6 and the top wall of the base of the needle detector body 1 to extend to the inside of the base of the needle detector body 1 to be connected with a control device, so that the chain 9 can push the push plate 23 to roll on clothes to detect broken needles;
a control device corresponding to the positioning device is fixedly connected to the inner side wall of one side of the base of the needle detector body 1, the control device comprises a pressing block 19 and a first chain wheel 20, the side edge of the chain 9 is meshed with the first chain wheel 20, a third rotating shaft is fixedly inserted in the center of the first chain wheel 20, one end, far away from the first chain wheel 20, of the third rotating shaft is fixedly connected with the output end of a second motor, the second motor is fixedly connected to the inner wall of the base of the needle detector body 1, the pressing block 19 is fixedly connected to the side wall of the chain 9, one end of a pull rope 17 is fixedly connected to the bottom end of the pressing block 19, and the other end of the; the tightening mechanism comprises a first gear 11, a third electromagnet 13 and a reel 18, one end of a pull rope 17 far away from a pressing block 19 is wound and connected with the reel 18, a rotating shaft 15 is fixedly inserted in the center of the reel 18, one end of the rotating shaft 15 is rotatably connected to the inner side wall of a base of the needle detector body 1, the other end of the rotating shaft 15 is slidably sleeved with the first gear 11 corresponding to a second gear 21, the side wall of the first gear 11 is connected with a top plate 16 abutting against the pressing block 19 through a plurality of second connecting rods, the other side wall of the first gear 11 is fixedly connected with an iron block 12, the bottom of the iron block 12 is provided with a baffle 14 contacting with the side wall of the first gear 11, the inner bottom wall of the base of the needle detector body 1 is fixedly connected with a T-shaped frame 10, the bottom end of the baffle 14 is slidably connected to a first sliding groove formed in the top end face of the T-shaped frame 10, the side wall of the T-shaped frame, the side of the baffle plate 14 far away from the first gear 11 is connected with a third connecting rod through a second spring;
the inner side wall of the other side of the base of the needle detector body 1 is connected with a trigger switch corresponding to the first electromagnet 7 and the second electromagnet 8, the trigger switch comprises a rotary disc 5, a first copper contact piece 26 and an elastic plate 28, the rotary disc 5 is rotatably connected to the inner side wall of the base of the needle detector body 1, the top end of the rotary disc 5 is connected with the elastic plate 28 abutting against the conveyor belt 3 through a first connecting rod, the bottom end of the rotary disc 5 is fixedly connected with a second copper contact piece 27, the inner side wall of the base of the needle detector body 1 is fixedly connected with the first copper contact piece 26 corresponding to the second copper contact piece 27, the first copper contact piece 26 is connected with the second copper contact piece 27 through a first spring, the distance between the first electromagnet 7 and the second electromagnet 8 is conveniently controlled by utilizing the movement of the conveyor belt 3, and the clothes can be pressed by;
the first motor, the power switch and the external power supply form a first series circuit through wires, the first electromagnet 7, the second electromagnet 8, the first copper contact piece 26, the second copper contact piece 27 and the external power supply form a second series circuit through wires, and the second motor, the third electromagnet 13, the searchlight, the power switch and the external power supply form a third series circuit through wires.
The working principle is as follows: when the conveying belt 3 is conveyed, the elastic plate 28 is driven to incline to drive the second copper contact 27 to be separated from the first copper contact 26, when a broken needle is detected, the conveying belt 3 stops, the resistance of the elastic plate 28 disappears, the first spring pulls the second copper contact 27 to be contacted with the first copper contact 26, after the first electromagnet 7 and the second electromagnet 8 are electrified, repulsion is generated, the second electromagnet 8 and the pressing box 6 move downwards to press clothes on the conveying belt 3, then the power supply of the second motor and the third electromagnet 13 is manually opened, the second motor drives the first chain wheel 20 to rotate, the meshing chain 9 moves upwards, the pressing block 19 is separated from the top plate 16, meanwhile, the pressing block 19 moves upwards to drive the reel 18 to rotate, the pull rope is loosened, the chain 9 pushes the push plate 23 to stretch out the pressing box 6 to move transversely along the detection frame of the needle detector body 1, when the push plate 23 contacts the broken needle on the clothes, the pressing block is blocked, the broken needle can be indicated by the searchlight, the power switch of the second motor is manually turned off to ensure that the broken needle is manually and quickly detected, after the third electromagnet 13 is powered off, the second spring pushes the baffle plate 14 to press the first gear 11 to move left to be meshed with the second gear 21, after the broken needle is picked up, the conveyor belt 3 is started to convey, the elastic plate 28 is pulled to rotate when the conveyor belt 3 rotates to separate the first copper contact 26 from the second copper contact 27, after the first electromagnet 7 and the second electromagnet 8 are powered off, the third spring pushes the pressing box 6 to move upwards to loosen clothes, the second gear 21 can be meshed with the first gear 11 to rotate, the reel 18 rotates to tighten the pull rope 17, the pressing block 19 and the chain 9 are pulled to move downwards to restore the push plate 23, and after the pressing block 19 moves downwards, the pressing plate 16 is pressed to ensure that the first gear 11 is gradually separated from the second gear 21, and the whole device is restored.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. A broken needle positioner for examining on needle machine, including examining needle machine body (1), locating rack (2), conveyer belt (3) and a plurality of driving roller (4), its characterized in that: the needle detector is characterized in that the positioning frame (2) is fixedly connected to a base of the needle detector body (1), the side wall of the positioning frame (2) is fixedly connected with a detection frame of the needle detector body (1), the inner wall of the base of the needle detector body (1) is rotatably connected with a plurality of transmission rollers (4), the transmission rollers (4) are connected through a conveyor belt (3), a second rotating shaft is fixedly inserted in the center of one of the transmission rollers (4), one end of the second rotating shaft is fixedly connected with a first motor fixedly connected with the inner wall of the base of the needle detector body (1), the other end of the second rotating shaft is fixedly sleeved with a second gear (21), a first electromagnet (7) is fixedly connected to the inner top wall of the positioning frame (2), a compression box (6) which is slidably connected to the inner side wall of the positioning frame (2) is arranged below the first electromagnet (7), the pressing box (6) is connected with the top wall of the base of the needle detector body (1) through a third spring, the top end of the pressing box (6) is fixedly connected with a second electromagnet (8) corresponding to the first electromagnet (7), the side wall of the positioning frame (2) is provided with a first opening, one end, far away from the inner side wall of the positioning frame (2), of the pressing box (6) movably penetrates through the first opening, the pressing box (6) is connected with a positioning device in a sliding manner, the inner side wall of one side of the base of the needle detector body (1) is fixedly connected with a control device corresponding to the positioning device, the inner side wall of the other side of the base of the needle detector body (1) is connected with a trigger switch corresponding to the first electromagnet (7) and the second electromagnet (8), and the positioning device inside the pressing box (6) comprises a chain (9) and a push plate (23), fixedly connected with sliding sleeve on the inner wall that compresses tightly box (6), sliding sleeve and fixedly connected with slide (22) are run through in the one end activity of chain (9), the bottom of slide (22) is rotated and is connected with gyro wheel (24), the one end activity that chain (9) were kept away from in slide (22) runs through the opening and the fixedly connected with push pedal (23) that compress tightly box (6), the middle part meshing of chain (9) has second sprocket (25) of rotation connection on compressing tightly box (6) inner wall, the one end activity in proper order that slide (22) were kept away from in chain (9) runs through the diapire that compresses tightly box (6), the base roof that examines needle machine body (1) extends to the base that examines needle machine body (1) inside be connected with controlling means.
2. The broken needle positioning device for the needle checking machine according to claim 1, wherein: trigger switch includes carousel (5), first copper contact (26) and elastic plate (28), carousel (5) rotate to be connected on the base inside wall of examining needle machine body (1), the top of carousel (5) is connected with elastic plate (28) inconsistent with conveyer belt (3) through first connecting rod, the bottom fixedly connected with second copper contact (27) of carousel (5), first copper contact (26) corresponding with second copper contact (27) of fixedly connected with on the base inside wall of examining needle machine body (1), and first copper contact (26) are connected with second copper contact (27) through first spring.
3. The broken needle positioning device for the needle checking machine according to claim 1, wherein: the control device comprises a pressing block (19) and a first chain wheel (20), the side edge of the chain (9) is meshed with the first chain wheel (20), a third rotating shaft is fixedly inserted in the center of the first chain wheel (20), the output end of a second motor fixedly connected with one end of the first chain wheel (20) is far away from the third rotating shaft, the second motor is fixedly connected to the inner wall of a base of the needle detector body (1), the pressing block (19) is fixedly connected to the side wall of the chain (9), one end of a pull rope (17) is fixedly connected to the bottom end of the pressing block (19), and the other end of the pull rope (17) is connected with a tightening mechanism.
4. The broken needle positioning device for the needle checking machine according to claim 3, wherein: the tightening mechanism comprises a first gear (11), a third electromagnet (13) and a reel (18), one end of the pull rope (17), far away from the pressing block (19), is wound and connected with the reel (18), a rotating shaft (15) is fixedly inserted in the center of the reel (18), one end of the rotating shaft (15) is rotatably connected to the inner side wall of the base of the needle detector body (1), the other end of the rotating shaft (15) is slidably sleeved with a first gear (11) corresponding to a second gear (21), the side wall of the first gear (11) is connected with a top plate (16) which is in contact with the pressing block (19) through a plurality of second connecting rods, an iron block (12) is fixedly connected to the side wall of the other side of the first gear (11), a baffle plate (14) which is in contact with the side wall of the first gear (11) is arranged at the bottom of the iron block (12), and a T-shaped frame (10) is fixedly connected to the inner bottom wall of the base of the, the bottom end of the baffle (14) is connected to a first sliding groove formed in the top end face of the T-shaped frame (10) in a sliding mode, the side wall of the T-shaped frame (10) is connected with a third electromagnet (13) corresponding to the iron block (12) through a third connecting rod, and one side, far away from the first gear (11), of the baffle (14) is connected with the third connecting rod through a second spring.
5. The broken needle positioning device for the needle checking machine according to claim 4, wherein: two second sliding grooves which are symmetrically arranged are formed in the rotating shaft (15), a sliding block is fixedly connected to the inner ring side wall of the first gear (11), and the sliding block is connected to the second sliding grooves in a sliding mode.
6. The broken needle positioning device for the needle checking machine according to claim 1, wherein: the length of the chain (9) is equal to the width of the conveyor belt (3).
7. The broken needle positioning device for the needle checking machine according to claim 1, wherein: and a searchlight is fixedly embedded on the side wall of the push plate (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810427771.7A CN108708157B (en) | 2018-05-07 | 2018-05-07 | Broken needle positioning device for needle detector |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810427771.7A CN108708157B (en) | 2018-05-07 | 2018-05-07 | Broken needle positioning device for needle detector |
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| CN108708157A CN108708157A (en) | 2018-10-26 |
| CN108708157B true CN108708157B (en) | 2021-03-05 |
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| CN201810427771.7A Active CN108708157B (en) | 2018-05-07 | 2018-05-07 | Broken needle positioning device for needle detector |
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| US2972372A (en) * | 1957-09-03 | 1961-02-21 | Eastman Kodak Co | Rewinding machine having improved cleaning-splicing mechanism |
| CN201390912Y (en) * | 2009-03-20 | 2010-01-27 | 山东泰鹏无纺有限公司 | Metal detector for non-woven fabric rolling mill |
| CN102851889A (en) * | 2012-09-17 | 2013-01-02 | 吴江市晓昱喷气织造有限公司 | Sewing needle detector |
| CN103774407A (en) * | 2014-01-17 | 2014-05-07 | 佛山市南海南方技术创新中心有限公司 | Needle detection machine |
| CN104153182A (en) * | 2014-08-11 | 2014-11-19 | 汪建军 | Needle detector for sewing |
| CN204331062U (en) * | 2015-01-07 | 2015-05-13 | 浙江美嘉标服饰有限公司 | A kind of NEEDLE DETETOR |
| CN205775527U (en) * | 2016-05-28 | 2016-12-07 | 廉香枝 | A kind of needle checking machine of auto-control |
-
2018
- 2018-05-07 CN CN201810427771.7A patent/CN108708157B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2972372A (en) * | 1957-09-03 | 1961-02-21 | Eastman Kodak Co | Rewinding machine having improved cleaning-splicing mechanism |
| CN201390912Y (en) * | 2009-03-20 | 2010-01-27 | 山东泰鹏无纺有限公司 | Metal detector for non-woven fabric rolling mill |
| CN102851889A (en) * | 2012-09-17 | 2013-01-02 | 吴江市晓昱喷气织造有限公司 | Sewing needle detector |
| CN103774407A (en) * | 2014-01-17 | 2014-05-07 | 佛山市南海南方技术创新中心有限公司 | Needle detection machine |
| CN104153182A (en) * | 2014-08-11 | 2014-11-19 | 汪建军 | Needle detector for sewing |
| CN204331062U (en) * | 2015-01-07 | 2015-05-13 | 浙江美嘉标服饰有限公司 | A kind of NEEDLE DETETOR |
| CN205775527U (en) * | 2016-05-28 | 2016-12-07 | 廉香枝 | A kind of needle checking machine of auto-control |
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| CN108708157A (en) | 2018-10-26 |
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