CN107764176A - Pin height detection device and embroidery machine - Google Patents
Pin height detection device and embroidery machine Download PDFInfo
- Publication number
- CN107764176A CN107764176A CN201610679875.8A CN201610679875A CN107764176A CN 107764176 A CN107764176 A CN 107764176A CN 201610679875 A CN201610679875 A CN 201610679875A CN 107764176 A CN107764176 A CN 107764176A
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- China
- Prior art keywords
- pin
- detection device
- height detection
- magnetic element
- rotary shaft
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/02—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05C—EMBROIDERING; TUFTING
- D05C13/00—Auxiliary devices incorporated in embroidering machines, not otherwise provided for; Ancillary apparatus for use with embroidering machines
- D05C13/02—Counting, measuring, indicating, warning, or safety devices
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Sewing Machines And Sewing (AREA)
Abstract
The present invention provides a kind of pin height detection device and embroidery machine, the pin height detection device, applied on embroidery machine, including：The induction installation of the high position rotary shaft of pin, magnetic element and the changes of magnetic field for detecting magnetic element that can be rotated with embroidery machine shank height change；The high position rotary shaft of pin is located inside the head of embroidery machine, magnetic element is arranged on the outer end end face of the high position rotary shaft of pin, and the magnetic field of magnetic element can change with the rotation of the high position rotary shaft of pin, induction installation is located on head lateral surface, and the sensing side of induction installation is relative with magnetic element, the embroidery machine includes the pin height detection device.Therefore, pin height detection device of the invention can reduce installation footprint, installation number of the increase embroidering machine head on main shaft, improve operating efficiency, reduce the friction in the instrument course of work with contactless detection mode, improve service life.
Description
Technical field
The present invention relates to embroidery machine detection technique, more particularly to a kind of pin height detection device and embroidery machine.
Background technology
Embroidery article is loved by people with its rich and changeful collocation of colour and pattern, and its market demand rate is increasingly
Increase.Mechanical embroidery technique manufacturing speed and operating efficiency are higher, realize multi-level, more work(that hand embroidering is unable to reach
The requirement of energy, uniformity and perfection.Wherein, the pin height of towel embroidery article refers to the height of towel product surface single coil
Degree, can change the softness on the surface of product by regulating winding height, while can set coil height according to demand
Realize the change of product surface decorative pattern and its three-dimensional degree.
At present, traditional pin high detection is completed by potentiometer, and traditional potentiometer is one kind of variable resistor, is relied on
Its interior metal contact slides on resistive element obtains partial ohmic, corresponding magnitude of voltage is exported, by detecting magnitude of voltage
Change determines the high change of pin.One potentiometer can be installed, pin height specifically detected outside each head of usual embroidery machine
Cheng Shi：Inside embroidering machine head, the needle point for embroidery is fixed on shank bottom, and shank is set in auxiliary rod by fixed cover
On, fixed cover is provided with crank, and crank is connected to be rotated on the crank of axis connection with pin height.Set on crank away from auxiliary rod one end
There is the pulley that can be slided in the eccentric cam groove on head spindle, pulley is slided in the eccentric cam groove on head spindle
It is dynamic.Potentiometer is arranged on head outer end and has a potentiometer rotary shaft, potentiometer rotary shaft stretch out potentiometer shell one end and
The high rotation axis connection of pin, the potentiometer rotary shaft other end is located inside potentiometer to be connected with the metal contact inside potentiometer, gold
Category contact is slidably connected with arc resistive element to be contacted.When pin height changes, needle point and shank drive fixed cover along auxiliary
Bar moves up and down, and fixed cover is driven crank rotary motion, and the high rotary shaft of crank handle turns pin rotates.The high rotary shaft of pin is in crank
Drive under connection drive potentiometer rotary shaft further rotate, metal contact is driven in arc resistive element upper surface slide,
Certain resistance change is produced in the ohmically change in location of arc with metal contact, relevant voltage value is exported, according to voltage
Value determines pin High variation value.
But potentiometer of the prior art is due to setting using arc resistive element, metal contact and potentiometer rotary shaft
Meter, its overall volume is larger, can take larger space when outside head so that the distance between head and head
Reduce, head increases installing space when being installed on embroidery machine main shaft.When the timing of main axis length one, the head quantity of installation subtracts
It is small, reduce the efficiency of embroidery.Meanwhile during potentiometer work, stretch out in the potentiometer rotary shaft rotation process outside potentiometer
Can and potentiometer shell body phase mutual friction, and there is also slip between metal contact inside potentiometer and arc resistive element
Rub, the long-term friction at two can cause mechanical wear, reduce the service life of potentiometer.
The content of the invention
The present invention provides a kind of pin height detection device and embroidery machine, can reduce pin height detection device appearance and size and its
Installation footprint, installation number of the increase embroidering machine head on main shaft, improves operating efficiency, meanwhile, reduce instrument work
Friction during work, improve service life.
The present invention provides a kind of pin height detection device and embroidery machine, wherein, pin height detection device, applied on embroidery machine,
Including：The high position rotary shaft of pin that can be rotated with embroidery machine shank height change, magnetic element and for detecting magnetic element
Changes of magnetic field induction installation；
The high position rotary shaft of pin is located inside the head of embroidery machine, and magnetic element is arranged on the outer end of the high position rotary shaft of pin
On end face, and the magnetic field of magnetic element can change with the rotation of the high position rotary shaft of pin, and induction installation is located at head lateral surface
On, and the sensing side of induction installation is relative with magnetic element.
Optionally, there is spacing between magnetic element and induction installation.
Optionally, magnetic element is magnet, and the axis direction of the pole orientation and the high position rotary shaft of pin of magnetic element hangs down
Directly.
Optionally, induction installation includes induction pieces and the mounting seat with hollow cavity, and mounting seat is fixed on the outer of head
Side, induction pieces are fastened in hollow cavity.
Optionally, mounting seat includes the ring-type holding division and ring-type fixed part being arranged concentrically, and ring-type holding division has and can opened
The breach opened, the part-skirt of ring-type holding division are connected with ring-type fixed part, the lateral surface connection of ring-type fixed part and head, are lacked
During the both ends engagement of mouth, the inwall of ring-type holding division is fixed in the outer rim of induction pieces.
Optionally, induction pieces include sensor circuit plate and the housing for accommodating sensor circuit plate；
Optionally, housing includes upper lid and lower house, and lower house is the tubular structure of one end open, the blind end of lower house
On offer sensing hole, Shang Gaigai is located in the opening of lower house, to surround housing, the sense of sensor circuit plate jointly with lower house
Answer side relative with the position of sensing hole, so that changes of magnetic field of the sensor circuit plate by sensing hole induced magnetism element.
Optionally, wire casing is offered on lower house.
Optionally, it is provided with earhole in mounting seat, mounting seat passes through the threaded fastener that is located in earhole and head
Lateral surface connects.
Optionally, fixed groove is offered on the outer end end face of the high position rotary shaft of pin, magnetic element is fixed on anchor
In groove.
Optionally, this embroidery machine includes pin height detection device.
Pin height detection device and embroidery machine provided by the invention are by setting induction installation and magnetic element, with contactless
Detection method detection pin High variation value, avoid each parts phase mutual friction in detection process from causing to wear, improve detection
The service life of device.Further, the sensor circuit plate small volume used in induction installation, can reduce pin high detection
The appearance and size and installation dimension of device, so as to increase the installation number of the head on the embroidery machine main shaft of certain length, improve
Embroidery machine operating efficiency.
Brief description of the drawings
Fig. 1 is the pin height detection device structural representation that the embodiment of the present invention one provides；
Fig. 2 is the mounting seat partial schematic diagram for the pin height detection device that the embodiment of the present invention one provides；
Fig. 3 is the embroidery machine structural representation that the embodiment of the present invention two provides；
Fig. 4 is the embroidery machine internal structure schematic diagram that the embodiment of the present invention two provides；
Fig. 5 is the embroidery machine lateral surface structural representation that the embodiment of the present invention two provides.
Description of reference numerals：
1- pin height detection devices；2- magnetic elements；3- induction installations；The high position rotary shaft of 4- pins；
5- shanks；6- shank auxiliary rods；7- needle points；8- cranks；
41- fixed grooves；31- induction pieces；32- mounting seats；Covered on 311-；
312- sensor circuit plates；313- lower houses；314- wire casings；321- ring-type holding divisions；
322- ring-type fixed parts；323- breach；324- earholes.
Embodiment
Fig. 1 is the pin height detection device structural representation that the embodiment of the present invention one provides, and Fig. 2 is that the embodiment of the present invention one carries
The mounting seat partial schematic diagram of the pin height detection device of confession, Fig. 3 are the embroidery machine structural representations that the embodiment of the present invention two provides.
As shown in Figure 1, Figure 2 and Figure 3, pin height detection device 1 provided by the invention, applied on embroidery machine, including：Can be with embroidery machine needle
The height change of bar 5 and the sense of the high position rotary shaft 4 of pin, magnetic element 2 and the changes of magnetic field for detecting magnetic element 2 rotated
Answer device 3；The high position rotary shaft 4 of pin is located inside the head of embroidery machine, and magnetic element 2 is arranged on the high position rotary shaft 4 of pin
On the end face of outer end, and the magnetic field of magnetic element 2 can change with the rotation of the high position rotary shaft 4 of pin, and induction installation 3 is located at head
On lateral surface, and the sensing side of induction installation 3 is relative with magnetic element 2.
It should be noted that the present invention is used to detect pin High variation value from magnetic element 2 and induction installation 3, due to two
Person's small volume, after potentiometer detection means of the prior art is replaced, the profile of pin height detection device 1 can be substantially reduced
Size, so as to reduce pin height detection device 1 installed in the installing space needed for embroidering machine head outside.In the prior art, typically
The installation dimension that needs of potentiometer detection means be 50mm, and the installation chi needed for pin height detection device 1 provided by the invention
It is very little to be preferably only 11mm.Usual head is mounted on the main shaft of certain length, when the less pin height detection device 1 of appearance and size
When on the outside of head, the distance between head and head can be substantially reduced, increases the installation number of head, improves embroidery
Efficiency simultaneously can complete the increasingly complex embroidery article of pattern.
Meanwhile induction installation 3 and magnetic element 2 are completed to detect in a manner of contactless, can avoid the occurrence of existing skill
In art, potentiometer rotary shaft and potentiometer shell body friction, the situation of potentiometer interior metal contact and arc resistive element friction,
Reducing instrument internal friction can increase the service life.
Specifically, there is spacing between magnetic element 2 and induction installation 3.
It should be noted that there is spacing between magnetic element 2 and induction installation 3, this distance preferably induction installation 3
It is capable of the beeline of the pole orientation of induced magnetism element 2 change, meets that this condition can reduce pin height detection device 1 as far as possible
Appearance and size, in an embodiment of the present invention, this distance preferably 1mm.
Specifically, magnetic element 2 is magnet, the pole orientation of magnetic element 2 and the axis direction of the high position rotary shaft 4 of pin
Vertically.When being rotated under the high position rotary shaft 4 of pin drives with the upper and lower displacement of shank 5, the pole orientation of magnetic element 2 is also therewith
Rotation is produced around axis direction.
Further, magnetic element 2 is magnet, can select but be not limited to ndfeb magnet, ferrite lattice and
The materials such as alnico magnet.Wherein, neodymium-iron-boron ferromagnetism is best, and chemism is strong, must be to its surface coated treatment during use；
Ferrite lattice hardness is higher, cheap；Alnico magnet has relatively low reversible temperature coefficient, adapts to the work of higher temperature
Make environment, can be according to the magnet for using needs, selecting different materials.
As depicted in figs. 1 and 2, induction installation 3 includes induction pieces 31 and the mounting seat 32 with hollow cavity, mounting seat 32
The lateral surface of head is fixed on, induction pieces 31 are fastened in hollow cavity.
Specifically, mounting seat 32 includes the ring-type holding division 321 and ring-type fixed part 322 being arranged concentrically, ring-type holding division
321 have expandable breach 323, and the part-skirt of ring-type holding division 321 is connected with ring-type fixed part 322, ring-type fixed part
322 are connected with the lateral surface of head, and when the both ends of breach 323 engage, the inwall of ring-type holding division 321 is fixed in induction pieces 31
In outer rim.
Specifically, induction pieces 31 include sensor circuit plate 312 and the housing for accommodating sensor circuit plate 312；
Specifically, housing includes upper lid 311 and lower house 313, lower house 313 is the tubular structure of one end open, lower casing
Sensing hole is offered on the blind end of body 313, the upper lid of lid 311 is located in the opening of lower house 313, with common with lower house 313
Housing is surrounded, the sensing side of sensor circuit plate 312 is relative with the position of sensing hole, so that sensor circuit plate 312 passes through sensing hole
The changes of magnetic field of induced magnetism element 2.
Specifically, wire casing 314 is offered on lower house 313.
Specifically, be provided with earhole 324 in mounting seat 32, mounting seat 32 passes through the screw threads for fastening that is located in earhole 324
The lateral surface of part and head connects.
The pin height detection device 1 that the embodiment of the present invention one provides sets magnetic element 2 and induction installation 3, is filled by sensing
The detection that the induction pieces 31 in 3 complete pin High variation value with the contactless detection mode of magnetic element 2 is put, avoids and detected
Friction in journey between parts, extend instrument service life.Simultaneously as the sensor circuit plate 312 used in induction pieces 31
Small volume, the appearance and size and installation dimension of pin height detection device 1 can be reduced, so as to increase the embroidery machine in certain length
The installation number of head on main shaft, improve embroidery machine operating efficiency.
The embodiment of the present invention two provides a kind of embroidery machine, the pin high detection dress that the present embodiment is provided in previous embodiment one
On the basis of putting, there is provided the overall concrete structure of embroidery machine.Fig. 4 is the embroidery machine internal structure that the embodiment of the present invention two provides
Schematic diagram, Fig. 5 are the embroidery machine lateral surface structural representations that the embodiment of the present invention two provides.As shown in Fig. 3,4 and 5, pin is high-order
Put and fixed groove 41 is offered on the outer end end face of rotary shaft 4, magnetic element 2 is fixed in fixed groove 41.
It should be noted that the embroidery machine that the embodiment of the present invention two provides includes the high position rotary shaft 4 of pin and shank 5, pin
The bottom of bar 5 is fixed with needle point 7, and shank 5 is set on shank auxiliary rod 6 by fixed cover, and fixed cover is provided with crank 8, crank 8
It is connected on the crank 8 being connected with the high position rotary shaft 4 of pin, the one end of crank 8 away from shank auxiliary rod 6 is provided with can be in head master
The pulley slided in the eccentric wheel groove of axle (Fig. 4 and Fig. 5 are not shown).
Specifically, in installation process, first mounting seat 32 is installed by the threaded fastener being located in its earhole 324
It is relative with the sensing hole of lower house 313 in the lateral surface of head, then by the sensing side of sensor circuit plate 312, and by sensor circuit
Plate 312 is installed in lower house 313, and induction pieces 31 are formed after covering lid 311.Induction pieces 31 are placed in mounting seat 32, protected
The side of card induction pieces 31 is only bonded ring-type holding division 321 without contacting ring-type fixed part 322, along axle center rotary inductive part 31,
So that the pole orientation of magnetic element 2 is relative with the sensed position of sensor circuit plate 312, it is determined that being now the initial shape of test
State.After debugging original state, using device for hooping engagement crevasse 323, induction pieces 31 are fixed in mounting seat 32.
Further, after installing pin height detection device 1, embroidering machine head is started working.When pin height changes,
Needle point 7 moves up and down, and shank 5 moves up and down under drive along shank auxiliary rod 6, and shank 5 drives simultaneously is arranged on a pin high position
The crank 8 put in rotary shaft 4 turns an angle, and crank 8 drives the high position rotary shaft 4 of pin to rotate respective angles, peace accordingly
After magnetic element 2 loaded on the high outer end end face of position rotary shaft 4 of pin rotates, its pole orientation accordingly rotates above-mentioned angle.Sensing
Circuit board 312 receives the angle value that pole orientation rotates relative to original state, and this angle value is sent into computer by circuit
Control system, computerized control system receive this angle value post analysis and determine corresponding pin High variation value, and it is high to complete whole pin
Detection process.
The embroidery machine that the embodiment of the present invention two provides, including pin height detection device 1.By in its pin height detection device 1
Magnetic element 2 and induction installation 3 be set, and the detection mode contactless with magnetic element 2 of the induction pieces 31 in induction installation 3 is complete
Into the detection of pin High variation value, the friction between parts in detection process is avoided, extends instrument service life.Meanwhile
Due to the small volume of sensor circuit plate 312 used in induction pieces 31, the appearance and size and peace of pin height detection device 1 can be reduced
Size is filled, so as to increase the installation number of the head on the embroidery machine main shaft of certain length, improves embroidery machine operating efficiency.
Finally it should be noted that：Various embodiments above is merely illustrative of the technical solution of the present invention, rather than its limitations；To the greatest extent
The present invention is described in detail with reference to foregoing embodiments for pipe, it will be understood by those within the art that：Its according to
The technical scheme described in foregoing embodiments can so be modified, either which part or all technical characteristic are entered
Row equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from various embodiments of the present invention technology
The scope of scheme.
Claims (10)
- A kind of 1. pin height detection device, applied on embroidery machine, it is characterised in that including：Can be with the embroidery machine needle height The sensing dress of the high position rotary shaft of pin, magnetic element and the changes of magnetic field for detecting the magnetic element that change and rotate Put；The high position rotary shaft of pin is located inside the head of the embroidery machine, and the magnetic element is arranged on the high position of the pin On the outer end end face of rotary shaft, and the magnetic field of the magnetic element can change, institute with the rotation of the high position rotary shaft of the pin State induction installation to be located on the head lateral surface, and the sensing side of the induction installation is relative with the magnetic element.
- 2. pin height detection device according to claim 1, it is characterised in that the magnetic element and the induction installation it Between there is spacing.
- 3. pin height detection device according to claim 1, it is characterised in that the magnetic element is magnet, the magnetic The pole orientation of element is vertical with the axis direction of the high position rotary shaft of the pin.
- 4. according to the pin height detection device described in claim any one of 1-3, it is characterised in that the induction installation includes sensing Part and the mounting seat with hollow cavity, the mounting seat are fixed on the lateral surface of the head, and the induction pieces are fastened on institute State in hollow cavity.
- 5. pin height detection device according to claim 4, it is characterised in that the mounting seat includes the ring-type being arranged concentrically Holding division and ring-type fixed part, the ring-type holding division have an expandable breach, the part-skirt of the ring-type holding division with The ring-type fixed part connection, the ring-type fixed part is connected with the lateral surface of the head, when the both ends of the breach engage, The inwall of the ring-type holding division is fixed in the outer rim of the induction pieces.
- 6. pin height detection device according to claim 4, it is characterised in that the induction pieces include sensor circuit plate and use In the housing for accommodating the sensor circuit plate；The housing includes upper lid and lower house, and the lower house is the tubular structure of one end open, the closing of the lower house Sensing hole is offered on end, the upper lid lid is located in the opening of the lower house, described to be surrounded jointly with the lower house Housing, the sensing side of the sensor circuit plate is relative with the position of the sensing hole so that the sensor circuit plate pass through it is described Sensing hole senses the changes of magnetic field of the magnetic element.
- 7. pin height detection device according to claim 6, it is characterised in that offer wire casing on the lower house.
- 8. pin height detection device according to claim 4, it is characterised in that earhole is provided with the mounting seat, it is described Mounting seat is connected by the threaded fastener being located in the earhole with the lateral surface of the head.
- 9. according to the pin height detection device described in claim any one of 1-3, it is characterised in that the high position rotary shaft of pin Fixed groove is offered on the end face of outer end, the magnetic element is fixed in the fixed groove.
- 10. a kind of embroidery machine, it is characterised in that including the pin height detection device as described in claim any one of 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610679875.8A CN107764176A (en) | 2016-08-17 | 2016-08-17 | Pin height detection device and embroidery machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610679875.8A CN107764176A (en) | 2016-08-17 | 2016-08-17 | Pin height detection device and embroidery machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107764176A true CN107764176A (en) | 2018-03-06 |
Family
ID=61260883
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610679875.8A Pending CN107764176A (en) | 2016-08-17 | 2016-08-17 | Pin height detection device and embroidery machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107764176A (en) |
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| EP1479809A1 (en) * | 2003-05-22 | 2004-11-24 | Dürkopp Adler Aktiengesellschaft | Sewing machine with a sensor for measuring the thickness of the fabric |
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| US20050152689A1 (en) * | 2003-11-19 | 2005-07-14 | Makoto Akabane | Position detecting device |
| JP2008245385A (en) * | 2007-03-27 | 2008-10-09 | Brother Ind Ltd | Fixing structure for resolvers and sewing machine with the same |
| CN102162177A (en) * | 2011-05-10 | 2011-08-24 | 浙江美机缝纫机有限公司 | Bar tacking machine with needle position safety detection sensor, control method and sensing plate thereof |
| CN202530290U (en) * | 2011-06-27 | 2012-11-14 | 北京大豪科技股份有限公司 | Chained embroidery machine with non-contact position detection |
| CN103541162A (en) * | 2012-07-13 | 2014-01-29 | 北京大豪科技股份有限公司 | Computerized embroidery machine and needle position detecting method of computerized embroidery machine |
| CN205398933U (en) * | 2016-02-24 | 2016-07-27 | 北京大豪科技股份有限公司 | High position detecting device of needle and thorn embroidery machine |
| CN205940438U (en) * | 2016-08-17 | 2017-02-08 | 北京大豪科技股份有限公司 | High detection device of needle and thorn embroidery machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1271266A (en) * | 1968-06-04 | 1972-04-19 | Matsushita Electric Ind Co Ltd | A device for stopping a rotary body in a predetermined position |
| US3881435A (en) * | 1972-05-09 | 1975-05-06 | Janome Sewing Machine Co Ltd | Arrangement for detecting the position of the sewing needle in a sewing machine |
| EP1479809A1 (en) * | 2003-05-22 | 2004-11-24 | Dürkopp Adler Aktiengesellschaft | Sewing machine with a sensor for measuring the thickness of the fabric |
| JP2005080473A (en) * | 2003-09-03 | 2005-03-24 | Brother Ind Ltd | Stepping motor and rotational position detecting device of motor |
| US20050152689A1 (en) * | 2003-11-19 | 2005-07-14 | Makoto Akabane | Position detecting device |
| JP2008245385A (en) * | 2007-03-27 | 2008-10-09 | Brother Ind Ltd | Fixing structure for resolvers and sewing machine with the same |
| CN102162177A (en) * | 2011-05-10 | 2011-08-24 | 浙江美机缝纫机有限公司 | Bar tacking machine with needle position safety detection sensor, control method and sensing plate thereof |
| CN202530290U (en) * | 2011-06-27 | 2012-11-14 | 北京大豪科技股份有限公司 | Chained embroidery machine with non-contact position detection |
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| CN205398933U (en) * | 2016-02-24 | 2016-07-27 | 北京大豪科技股份有限公司 | High position detecting device of needle and thorn embroidery machine |
| CN205940438U (en) * | 2016-08-17 | 2017-02-08 | 北京大豪科技股份有限公司 | High detection device of needle and thorn embroidery machine |
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