CN107475919A - Anti-tie arm device and preventing hand pricking method in sewing machine threading process - Google Patents
Anti-tie arm device and preventing hand pricking method in sewing machine threading process Download PDFInfo
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- CN107475919A CN107475919A CN201710778419.3A CN201710778419A CN107475919A CN 107475919 A CN107475919 A CN 107475919A CN 201710778419 A CN201710778419 A CN 201710778419A CN 107475919 A CN107475919 A CN 107475919A
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- Prior art keywords
- sewing machine
- controller
- signal
- threading process
- foot
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Classifications
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B83/00—Guards or like devices for preventing injury to operator
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B69/00—Driving-gear; Control devices
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Sewing Machines And Sewing (AREA)
Abstract
The present invention provides a kind of anti-tie arm device and the preventing hand pricking method in sewing machine threading process, and it includes：The distance detection sensor being placed in above eedle, distance detection sensor controller, are connected towards sewing work platform with the distance detection sensor；Signal display unit; it is connected with the controller; for gathering the foot-operated foot-operated signal gathering unit whether stepped on; foot-operated signal gathering unit is connected with the controller; detected current distance value is transferred to controller by distance detection sensor, and controller judges whether current be threading process according to current distance value, if then signal display unit shows danger signal; and no matter whether foot-operated signal gathering unit sends a signal to controller, controller control sewing machine is in stopped status；If otherwise signal display unit shows safety signal, controller control sewing machine is in running order, and the current demand signal that is gathered according to foot-operated signal gathering unit controls sewing machine to sew.Present invention ensure that the security in threading process, prevents from trampling foot-operated and causing sewing machine maloperation.
Description
Technical field
The present invention relates to sewing machine stitching process field, is filled more particularly to the preventing hand pricking in a kind of sewing machine threading process
Put and preventing hand pricking method.
Background technology
To prevent that hand is pricked user of service by eedle in sewing process, can install one additional beside the eedle of sewing machine
Protection hooks, and can prevent the finger of user of service from entering the lower section of eedle.As Chinese patent 96239702.4 discloses one kind
Device for protecting hand from being pricked for sewing machine, including sewing machine, it is characterised in that added and pressure angle on the week edge at sewing machine pressure angle
The block or sideboard of connection.Sewing machine pressure angle week along having installed block or sideboard additional, when human hand transmits clothing, hand will not be by
Eedle is stabbed.
But when eedle needs to thread again, the hand of operating personnel must pass over protection hook or above-mentioned block or
Sideboard is threaded, and is stepped on by mistake if now ridden, then be may result in sewing machine rotation, is easily allowed eedle to prick hand.Cause
This prevents from, because sewing machine is misrouted dynamic, causing eedle to prick the peace of finger, it is necessary to solve user of service in eedle threading process
Full hidden danger.
The content of the invention
In view of the above the shortcomings that prior art, it is an object of the invention to provide in a kind of sewing machine threading process
Anti-tie arm device and preventing hand pricking method, for solving easily to draw sewing machine maloperation in threading process in the prior art, and allow eedle
The problem of pricking the hand.
In order to achieve the above objects and other related objects, the present invention provides the preventing hand pricking dress in a kind of sewing machine threading process
Put, it includes：
The distance detection sensor being placed in above eedle, distance detection sensor towards sewing work platform,
Controller, it is connected with the distance detection sensor；
Signal display unit, it is connected with the controller,
For gathering the foot-operated foot-operated signal gathering unit whether stepped on, signal gathering unit and the controller are ridden
It is connected, detected current distance value is transferred to controller by distance detection sensor, and controller is sentenced according to current distance value
Whether disconnected be currently threading process, if then signal display unit shows danger signal, and no matter foot-operated signal gathering unit is
No to send a signal to controller, controller control sewing machine is in stopped status；If otherwise signal display unit display safety letter
Number, controller control sewing machine is in running order, and the current demand signal gathered according to foot-operated signal gathering unit stitches to control
Machine of threading is sewed.
Preferably, the periphery of the eedle, which is provided with, hooks the circular protection of eedle.
Preferably, the distance detection sensor is ultrasonic sensor.
Preferably, the ultrasonic sensor includes the transmitting probe and receiving transducer being fixed on same installing plate.
Preferably, the signal display unit is one group of LED.
Preferably, in addition to the distance detection sensor it is connected and the control of command range detection sensor keying is opened
Close.
The present invention also provides a kind of preventing hand pricking method in sewing machine threading process, and the preventing hand pricking method is using as above institute
Anti-tie arm device in the sewing machine threading process stated, specifically includes following steps：
1) sewing machine is out of service, starts the anti-tie arm device in the sewing machine threading process, and the distance detection passes
Sensor detects current distance value in real time, and the current distance value detected is transferred into the controller；
2) controller judges whether current be threading process according to the current distance value, if then signal display is single
Member shows danger signal, and no matter whether foot-operated signal gathering unit sends a signal to controller, and controller is controlled at sewing machine
In stopped status；If otherwise signal display unit shows safety signal, controller control sewing machine is in running order, according to pin
Current demand signal that signal gathering unit gathered is stepped on to control sewing machine to sew；Controller judges whether current be threading process
Concrete mode is：By the current distance value compared with predetermined threshold value, if current distance value is less than predetermined threshold value, judge
For threading process；If current distance value is more than or equal to predetermined threshold value, it is judged as NO.
Preferably, the controller judges whether current be that the concrete mode of threading process is：The controller detects
When at least 10 current distance values are less than predetermined threshold value, controller, which exports, enters the order for threading guard mode to the foot-operated control
Unit processed, make foot-operated control unit control foot-operated immovable.
As described above, anti-tie arm device and the preventing hand pricking method in the sewing machine threading process of the present invention, has with following
Beneficial effect：The present invention detects lower section using distance detection sensor in real time using distance detection sensor is set above eedle
Distance, when human hand threading when, the distance value that distance detection sensor detects is smaller, and without human hand when, distance detection
Sensor directly detects the distance of sewing work platform, and this is in larger distance, and controller is sentenced using detecting apart from size
Whether disconnected is threading process, and controls sewing machine to be in stopped status；If otherwise control sewing machine in running order；It is true with this
The security protected in threading process, prevent from trampling foot-operated and causing sewing machine maloperation.
Brief description of the drawings
Fig. 1 is shown as the preventing hand pricking schematic device in the sewing machine threading process of the present invention.
Fig. 2 is shown as the distance detection sensor schematic diagram of the present invention.
Component label instructions
1 eedle
2 protection hook
3 distance detection sensors
21 receiving transducers
22 transmitting probes
4 sewing work platforms
Embodiment
Embodiments of the present invention are illustrated by particular specific embodiment below, those skilled in the art can be by this explanation
Content disclosed by book understands other advantages and effect of the present invention easily.
Fig. 1 is referred to Fig. 2.It should be clear that structure depicted in this specification institute accompanying drawing, ratio, size etc., only to
Coordinate the content disclosed in specification, so that those skilled in the art understands and reads, being not limited to the present invention can be real
The qualifications applied, therefore do not have technical essential meaning, the tune of the modification of any structure, the change of proportionate relationship or size
It is whole, in the case where not influenceing the effect of present invention can be generated and the purpose that can reach, all should still fall in disclosed skill
In the range of art content can cover.Meanwhile in this specification it is cited as " on ", " under ", "left", "right", " centre " and
The term of " one " etc., understanding for narration is merely convenient to, and is not used to limit the enforceable scope of the present invention, its relativeness
It is altered or modified, in the case where changing technology contents without essence, when being also considered as the enforceable category of the present invention.
As shown in figure 1, the present invention provides the anti-tie arm device in a kind of sewing machine threading process, it includes：
Be placed in the distance detection sensor 3 of the top of eedle 1, distance detection sensor 3 towards sewing work platform 4,
Controller, it is connected with the distance detection sensor 3；
Signal display unit, it is connected with the controller,
For gathering the foot-operated foot-operated signal gathering unit whether stepped on, signal gathering unit and the controller are ridden
It is connected, detected current distance value is transferred to controller by distance detection sensor, and controller is sentenced according to current distance value
Whether disconnected be currently threading process, if then signal display unit shows danger signal, and no matter foot-operated signal gathering unit is
No to send a signal to controller, controller control sewing machine is in stopped status；If otherwise signal display unit display safety letter
Number, controller control sewing machine is in running order, and the current demand signal gathered according to foot-operated signal gathering unit stitches to control
Machine of threading is sewed.
The present invention sets distance detection sensor 3 using in the top of eedle 1, is examined in real time using distance detection sensor 3
Survey lower section distance, when human hand threading when, the distance value that distance detection sensor 3 detects is smaller, and without human hand when, away from
Directly detected from detection sensor 3 with a distance from sewing work platform, this is in larger distance, and controller is big using the distance detected
It is small to determine whether threading process, and control sewing machine be in stopped status, both made to step on by mistake foot-operated, to ride will not also cause seam
Machine of threading rotates；If otherwise make sewing machine in running order；The security in threading process is ensured with this, prevent from trampling it is foot-operated and
Cause sewing machine maloperation.
To improve the inspection precision of distance detection sensor, the distance detection sensor in the present embodiment is supersonic sensing
Device, as shown in Figure 2, ultrasonic sensor are made up of two probes being fixed on same installing plate, and one of them is visited to receive
First 21, another is transmitting probe 22；Transmitting probe 22 sends the ultrasonic wave of fixed frequency, and ultrasonic wave is connect through barrier reflection
Receive probe 21 to be received, the time difference for receiving and sending by detecting ultrasonic wave, can calculate barrier (or reverberation) and
Distance between probe.Whether the present embodiment detects two probe lower sections with the presence of barrier by using ultrasonic sensor, from
And learn the hand for whether having employee beside eedle syringe needle and threading.
Preferably to play protective action, it is provided with the present embodiment in the periphery of eedle 1 and the circular protection of eedle is hooked 2,
This protection triggers the hand for preventing eedle from stabbing operating personnel in normal sewing.
For ease of display, signal display unit is one group of LED in the present embodiment, including green light LED lamp and red-light LED
Lamp, when showing danger signal, red LED lamp is bright, and expression is in threading process, now needs to control sewing machine to be in stopped status,
Now sewing machine is foot-operated is stepped on, and sewing machine is not sewed；When showing safety signal, green light LED lamp is bright, and expression is not in threading
Journey, now sewing machine is foot-operated is stepped on, and sewing machine is normally sewed.
To ensure the normal use of sewing machine, the present embodiment also includes being connected with distance detection sensor 3 and command range
The controlling switch that detection sensor opens and closes.It can also set in the automatically controlled parameter management item of controller and open and close distance detection sensing
The closing of device 3 and unlatching button.Start after closing button, distance detection sensor 3 will not detect to barrier.So i.e.
It is that distance detection sensor 3 exception occurs in use, sewing machine user also can be by closing distance detection sensor
3, so as to not influence the continuation of sewing work.
The present invention also provides a kind of preventing hand pricking method in sewing machine threading process, and the preventing hand pricking method is using as above institute
Anti-tie arm device in the sewing machine threading process stated, specifically includes following steps：
1) sewing machine is out of service, starts the anti-tie arm device in the sewing machine threading process, and the distance detection passes
Sensor detects current distance value in real time, and the current distance value detected is transferred into the controller；
2) controller judges whether current be threading process according to the current distance value, if then signal display is single
Member shows danger signal, and no matter whether foot-operated signal gathering unit sends a signal to controller, and controller is controlled at sewing machine
In stopped status；If otherwise signal display unit shows safety signal, controller control sewing machine is in running order, according to pin
Current demand signal that signal gathering unit gathered is stepped on to control sewing machine to sew；Controller judges whether current be threading process
Concrete mode is：By the current distance value compared with predetermined threshold value, if current distance value is less than predetermined threshold value, judge
For threading process；If current distance value is more than or equal to predetermined threshold value, it is judged as NO.
Controller noted above judges whether current be that the concrete mode of threading process is：The controller detects at least 10 times
When current distance value is less than predetermined threshold value, controller output enters the order of threading guard mode to the foot-operated control unit,
Make foot-operated control unit control foot-operated immovable.
Preventing hand pricking method in the present embodiment is concretely：The precision of ultrasonic sensor can generally reach 3mm at present,
The present embodiment is using ultrasonic sensor as distance detection sensor.When no barrier is present, supersonic sensing
Device detects that the distance of probe and sewing work platform 4 is 60 ± 5mm, can be using 30mm distance value as predetermined threshold value.The person of working as
When the hand of work is threaded a needle beside eedle, the reflective distance that ultrasonic sensor detects will diminish (＜ 30mm), i.e., currently away from
It is less than above-mentioned predetermined threshold value from value.When ultrasonic sensor has detected that hand enters investigative range, detected current distance
When value is less than predetermined threshold value, controller controls above-mentioned red LED lamp bright, i.e. the LED of shiny red, starts threading protection shape
State；When the reflective distance that ultrasonic probe detects is more than 30mm, i.e., when current distance value is more than predetermined threshold value, controller
Above-mentioned green light LED lamp, i.e. bright green LED are controlled, cancels threading guard mode.Defencive function is threaded, is only stopped in sewing machine
Opened in the state of only, so as to prevent in sewing process because of trigger protection state so that the state that sewing machine stops suddenly going out
It is existing.
The difficult to handle specific control process of anti-eedle is during threading：After sewing machine 1S out of service, start ultrasonic sensor
Detect (BG light LED)；When operation employee is threaded, ultrasound examination diminishes to reflective distance, and current distance value is less than
Predetermined threshold value, then enter threading guard mode, bright red LED lamp；Now if foot-operated be operated, sewing machine will not also rotate,
So as to protect the hand of operation employee not pricked by pin；When the hand of employee is not below ultrasonic sensor, BG light
LED represents that anti-threading function of pricking the hand is not actuated, foot-operated to step on rear sewing machine and directly run.
In the present embodiment, controller noted above detects the current distance value of a ultrasonic sensor detection per 1ms.It is if ultrasonic
The current distance value of continuous 10 detections of wave sensor is less than above-mentioned predetermined threshold value, that is, indicates barrier entrance, then enters and wear
Line guard mode；If there are more than the 400 times current distance values detected to be more than above-mentioned predetermined threshold value in 0.5S, that is, represent not examine
Barrier is measured, then cancels threading guard mode.
In summary, anti-tie arm device and the preventing hand pricking method in sewing machine threading process of the present invention, above eedle
One distance detection sensor is installed, the current distance that controller is detected by detection sensor of adjusting the distance is compared, with this
The hand for whether having employee below judging distance detection sensor enters, and cutting for guard mode is threaded so as to realize to enter and cancel
Change.So the present invention effectively overcomes various shortcoming of the prior art and has high industrial utilization.
The above-described embodiments merely illustrate the principles and effects of the present invention, not for the limitation present invention.It is any ripe
Know the personage of this technology all can carry out modifications and changes under the spirit and scope without prejudice to the present invention to above-described embodiment.Cause
This, those of ordinary skill in the art is complete without departing from disclosed spirit and institute under technological thought such as
Into all equivalent modifications or change, should by the present invention claim be covered.
Claims (8)
- A kind of 1. anti-tie arm device in sewing machine threading process, it is characterised in that including：The distance detection sensor being placed in above eedle, distance detection sensor towards sewing work platform,Controller, it is connected with the distance detection sensor；Signal display unit, it is connected with the controller,For gathering the foot-operated foot-operated signal gathering unit whether stepped on, signal gathering unit and the controller phase are ridden Even, detected current distance value is transferred to controller by distance detection sensor, and controller judges according to current distance value Whether current is threading process, if then signal display unit shows danger signal, and no matter whether rides signal gathering unit Controller is sent a signal to, controller control sewing machine is in stopped status；If otherwise signal display unit shows safety signal, Controller control sewing machine is in running order, and the current demand signal that is gathered according to foot-operated signal gathering unit controls sewing machine Sewing.
- 2. the anti-tie arm device in sewing machine threading process according to claim 1, it is characterised in that：Outside the eedle Enclose to be provided with and hook the circular protection of eedle.
- 3. the anti-tie arm device in sewing machine threading process according to claim 1, it is characterised in that：The distance detection Sensor is ultrasonic sensor.
- 4. the anti-tie arm device in sewing machine threading process according to claim 3, it is characterised in that：The ultrasonic wave passes Sensor includes the transmitting probe and receiving transducer being fixed on same installing plate.
- 5. the anti-tie arm device in sewing machine threading process according to claim 1, it is characterised in that：The signal is shown Unit is one group of LED.
- 6. the anti-tie arm device in sewing machine threading process according to claim 1, it is characterised in that：Also include with it is described The controlling switch that distance detection sensor is connected and command range detection sensor opens and closes.
- 7. a kind of preventing hand pricking method in sewing machine threading process, it is characterised in that：The preventing hand pricking method uses right such as will The anti-tie arm device in the sewing machine threading process described in 1 to any one of claim 6 is sought, specifically includes following steps：1) sewing machine is out of service, starts the anti-tie arm device in the sewing machine threading process, the distance detection sensor Detection current distance value in real time, and the current distance value detected is transferred to the controller；2) controller judges whether current be threading process according to the current distance value, if then signal display unit shows Show danger signal, and no matter whether foot-operated signal gathering unit sends a signal to controller, controller control sewing machine, which is in, to stop Machine state；If otherwise signal display unit shows safety signal, controller control sewing machine is in running order, according to foot-operated letter Current demand signal that number collecting unit is gathered controls sewing machine to sew；Controller judges whether current be the specific of threading process Mode is：By the current distance value compared with predetermined threshold value, if current distance value is less than predetermined threshold value, it is judged as wearing Line process；If current distance value is more than or equal to predetermined threshold value, it is judged as NO.
- 8. the preventing hand pricking method in sewing machine threading process according to claim 7, it is characterised in that：The controller is sentenced Whether disconnected current be that the concrete mode of threading process is：The controller detects that at least 10 current distance values are less than default threshold During value, controller output enters the order of threading guard mode to the foot-operated control unit, makes foot-operated control unit control pin Step on immovable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710778419.3A CN107475919A (en) | 2017-09-01 | 2017-09-01 | Anti-tie arm device and preventing hand pricking method in sewing machine threading process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710778419.3A CN107475919A (en) | 2017-09-01 | 2017-09-01 | Anti-tie arm device and preventing hand pricking method in sewing machine threading process |
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| Publication Number | Publication Date |
|---|---|
| CN107475919A true CN107475919A (en) | 2017-12-15 |
Family
ID=60604338
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710778419.3A Pending CN107475919A (en) | 2017-09-01 | 2017-09-01 | Anti-tie arm device and preventing hand pricking method in sewing machine threading process |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4075961A (en) * | 1976-05-07 | 1978-02-28 | Burlington Industries, Inc. | Injury protection device for machinery |
| JPH04208198A (en) * | 1990-11-30 | 1992-07-29 | Juki Corp | Safety device for sewing machine |
| CN201236262Y (en) * | 2008-07-17 | 2009-05-13 | 西安标准工业股份有限公司 | Trimming overedger |
| CN201381437Y (en) * | 2009-04-13 | 2010-01-13 | 钱谷兰 | Protecting device preventing machine needle from mistakenly puncturing |
| CN102120556A (en) * | 2011-02-28 | 2011-07-13 | 大连理工大学 | Ultrasonic probe type anti-collision device for working platform |
| CN103091678A (en) * | 2013-01-09 | 2013-05-08 | 上海海事大学 | Ultrasonic radar warning system for turning of middle-large size vehicles |
| CN103789942A (en) * | 2012-11-02 | 2014-05-14 | 吴江市嘉运纺织整理有限公司 | Safety sewing machine |
| CN105887374A (en) * | 2016-06-24 | 2016-08-24 | 浙江众邦机电科技有限公司 | Sewing machine and security protection device for application of sewing machine |
| CN106835528A (en) * | 2016-12-01 | 2017-06-13 | 拓卡奔马机电科技有限公司 | The pressing plate control system and its control method of a kind of bag-opening machine |
-
2017
- 2017-09-01 CN CN201710778419.3A patent/CN107475919A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4075961A (en) * | 1976-05-07 | 1978-02-28 | Burlington Industries, Inc. | Injury protection device for machinery |
| JPH04208198A (en) * | 1990-11-30 | 1992-07-29 | Juki Corp | Safety device for sewing machine |
| CN201236262Y (en) * | 2008-07-17 | 2009-05-13 | 西安标准工业股份有限公司 | Trimming overedger |
| CN201381437Y (en) * | 2009-04-13 | 2010-01-13 | 钱谷兰 | Protecting device preventing machine needle from mistakenly puncturing |
| CN102120556A (en) * | 2011-02-28 | 2011-07-13 | 大连理工大学 | Ultrasonic probe type anti-collision device for working platform |
| CN103789942A (en) * | 2012-11-02 | 2014-05-14 | 吴江市嘉运纺织整理有限公司 | Safety sewing machine |
| CN103091678A (en) * | 2013-01-09 | 2013-05-08 | 上海海事大学 | Ultrasonic radar warning system for turning of middle-large size vehicles |
| CN105887374A (en) * | 2016-06-24 | 2016-08-24 | 浙江众邦机电科技有限公司 | Sewing machine and security protection device for application of sewing machine |
| CN106835528A (en) * | 2016-12-01 | 2017-06-13 | 拓卡奔马机电科技有限公司 | The pressing plate control system and its control method of a kind of bag-opening machine |
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