CN104911826B - Novel intelligent template flat sewing machine and automatic induction sewing method - Google Patents
Novel intelligent template flat sewing machine and automatic induction sewing method Download PDFInfo
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- CN104911826B CN104911826B CN201510334493.7A CN201510334493A CN104911826B CN 104911826 B CN104911826 B CN 104911826B CN 201510334493 A CN201510334493 A CN 201510334493A CN 104911826 B CN104911826 B CN 104911826B
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- 238000009958 sewing Methods 0.000 title claims abstract description 86
- 230000006698 induction Effects 0.000 title claims abstract description 27
- 238000000034 method Methods 0.000 title claims description 14
- 230000007246 mechanism Effects 0.000 claims abstract description 64
- 239000004744 fabric Substances 0.000 claims abstract description 54
- 230000008878 coupling Effects 0.000 claims abstract description 5
- 238000010168 coupling process Methods 0.000 claims abstract description 5
- 238000005859 coupling reaction Methods 0.000 claims abstract description 5
- 230000001105 regulatory effect Effects 0.000 claims description 17
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 5
- 239000000741 silica gel Substances 0.000 claims description 5
- 229910002027 silica gel Inorganic materials 0.000 claims description 5
- 230000009471 action Effects 0.000 claims description 4
- 230000008569 process Effects 0.000 claims description 4
- 230000001276 controlling effect Effects 0.000 claims description 2
- 230000002093 peripheral effect Effects 0.000 claims 1
- 239000000725 suspension Substances 0.000 abstract 1
- 238000001514 detection method Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
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- 238000012986 modification Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
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Abstract
The invention belongs to the technical field of flat sewing machines, in particular to a novel template flat sewing machine, which comprises a machine shell, wherein a mop mechanism, a template photoelectric sensor and a controller are arranged on the machine shell; the template flat sewing machine comprises a template flat sewing machine, a needle plate, a lower guide sleeve and a sensing device, wherein the needle plate of the template flat sewing machine is provided with the lower guide sleeve through which a needle passes and hooks a thread, the lower guide sleeve can be embedded into a guide groove on a template to be matched, the sensing device is used for detecting that the needle passes through cloth upwards and sends a control signal to a controller, and the controller controls a stepping motor of a mop mechanism to be started according to the signal; the induction device sends a control signal to the controller when the machine needle downwards penetrates into the cloth, the controller controls the step motor of the mop mechanism to pause according to the signal, and a motor shaft of the step motor drives the tug to run through the universal coupling. The design enables the controller to control the suspension of the mop mechanism when the needle penetrates into the cloth, so as to avoid the cloth from being torn due to the non-correspondence between the mop mechanism and the needle.
Description
Technical Field
The invention belongs to the technical field of flat sewing machines, and particularly relates to a novel intelligent template flat sewing machine and an automatic induction sewing method based on the template flat sewing machine.
Background
ZL201320885396.3 discloses a template sewing machine, and it includes the casing, is provided with mop mechanism on the casing, goes up the motor mounting bracket of tug mechanism and sets up on the casing, is provided with step motor on the motor mounting bracket, and the pinch bar is worn to be equipped with by the front end of casing, and the pinch bar lower extreme is connected with the tug mounting bracket, has the tug through the tug hub connection on the tug mounting bracket, still includes lower mop mechanism, lower tug mechanism set up on the mounting plate of casing, with last tug mechanism symmetrical setting, last mop mechanism and lower mop mechanism between be provided with the template, the lower extreme of pinch bar be provided with unsteady presser foot.
This technique has the following disadvantages: 1. the template is prevented from slipping by adopting the design of mutually matching an upper tug mechanism and a lower tug mechanism, the structure is complex, and the cost is high; 2. the design of the floating presser foot can block the movement of the template, and the phenomenon also exists when the traditional presser foot is adopted; 3. when the needle moves to the lower side of the cloth, the upper and lower tug mechanisms still operate, so that the cloth has potential safety hazard of being torn; 4. after the template is sewn, the presser foot of the sewing machine is lifted and the template is replaced, and in the replacement process, the presser foot and the tug of the sewing machine are always in a lifting state, so that electric energy is wasted, and the motor is heated and easy to damage.
Disclosure of Invention
The invention aims to provide a template flat sewing machine which is simple in structure, safe, reliable, energy-saving and better in sewing effect, and an automatic induction sewing method based on the template flat sewing machine.
The purpose of the invention is realized as follows:
a novel intelligent template sewing machine comprises a machine shell, wherein a mop mechanism, a template photoelectric sensor and a controller are arranged on the machine shell; the template flat sewing machine comprises a template flat sewing machine, a needle plate, a lower guide sleeve and a sensing device, wherein the needle plate of the template flat sewing machine is provided with the lower guide sleeve through which a needle passes and hooks a thread, the lower guide sleeve can be embedded into a guide groove on a template to be matched, the sensing device is used for detecting that the needle passes through cloth upwards and sends a control signal to a controller, and the controller controls a stepping motor of a mop mechanism to be started according to the signal; the induction device sends a control signal to the controller when the machine needle downwards penetrates into the cloth, the controller controls the step motor of the mop mechanism to pause according to the signal, and a motor shaft of the step motor drives the tug to run through the universal coupling.
The induction device is an encoder and a grating which are arranged on a main shaft of the template flat sewing machine; the encoder is matched with the grating to detect the rotation angle of the main shaft, and when the main shaft rotates to a certain angle range, a control signal for starting or suspending the mop mechanism is given to the controller;
or the sensing device is a proximity switch arranged in the machine shell, and the proximity switch detects the stroke of the needle rod and sends a control signal to the controller when the needle rod moves upwards or downwards to a certain position.
The machine needle guide mechanism comprises a presser foot arm lifting shaft, a connecting rod mechanism for driving the presser foot arm lifting shaft to lift and a presser foot arranged at the lower end of the presser foot arm lifting shaft;
the presser foot comprises a presser foot arm, and an upper guide sleeve for a needle to pass through is formed at the front end of the presser foot arm; the upper guide sleeve is positioned right above the lower guide sleeve, and the upper guide sleeve and the lower guide sleeve are concentrically arranged; when the seam is formed, the upper guide sleeve extends into the guide groove of the template under the action of the pressure pin arm lifting shaft and is close to the lower guide sleeve.
And a silica gel wheel is arranged on the surface of the dragging wheel of the mop mechanism.
The mop mechanism comprises a mop wheel, a mop wheel seat, a mop wheel lifting shaft, a mop wheel pressing spring and a pressure regulating screw; the pressure regulating device is characterized in that the pressure lifting shaft of the tug is arranged in the casing, the step shaft at the upper end of the pressure lifting shaft of the tug is sleeved with the tug pressing spring, the upper end of the tug pressing spring is abutted to the pressure regulating screw, the pressure regulating screw is spirally arranged on the casing, and the side of the pressure regulating screw is provided with a scale.
An automatic induction sewing method of an intelligent template flat sewing machine, wherein the template flat sewing machine comprises a template photoelectric sensor and a mop mechanism which are connected with a control system, and comprises the following steps:
1) when the template photoelectric sensor senses that the template enters a sensing area when sewing is started, the template photoelectric sensor transmits a signal to the control system, and the control system controls the presser foot and the tug to be lifted;
2) when the template is in place, the template flat sewing machine starts to perform cloth sewing work; in the cloth sewing process, the induction device sends a control signal to the control system when the needle bar descends to a set position, and the control system controls the stepping motor of the mop mechanism to pause according to the signal; when the needle bar moves upwards to a set position, the induction device sends a control signal to the control system, and the control system controls the starting of the stepping motor of the mop mechanism according to the signal;
3) when the template photoelectric sensor detects the induction area at the tail end of the guide groove of the template, the template photoelectric sensor controls the control system to automatically cut threads and finish sewing work.
The cloth sewing mode in the step 2) is that the control system automatically controls the template flat sewing machine to start cloth sewing after the cloth sensor senses that the template enters the sensing area for a plurality of seconds.
In the step 2), when the machine needle moves upwards and is about to penetrate out of the cloth, the presser foot moves downwards and presses the cloth; when the needle penetrates out of the cloth, the presser foot is lifted upwards and reset.
In the step 3), when the template flat sewing machine finishes sewing work, the control system controls the presser foot and the tug to be lifted up, and the presser foot and the tug freely fall after a plurality of seconds.
Compared with the prior art, the invention has the outstanding and beneficial technical effects that:
1. the upper guide sleeve of the presser foot can extend into the guide groove of the template under the action of the pressure lifting shaft of the presser foot arm and is close to the lower guide sleeve; go up the guide pin bushing and guide pin bushing cooperation down and assist the eedle to carry out making up of cloth for when the eedle worn out the cloth (promptly, the needle jack), go up the guide pin bushing and can the minute-pressure cloth, prevent that the cloth from wrinkling.
2. The shell of the invention is provided with a sensing device which is used for detecting the stroke of the needle rod, and the design ensures that the controller can control the mop mechanism to pause when the needle penetrates into the cloth so as to avoid the cloth from being torn due to the non-correspondence between the mop mechanism and the needle, and the tug continues to operate when the needle penetrates out of the cloth.
3. The surface of the tug is provided with the silica gel wheel which can increase friction and effectively cooperate with the template, so that the phenomenon of slipping of the tug is avoided, the cloth is fed stably, and the tug has the advantage of simple structure.
4. The stepped shaft at the upper end of the tug lifting shaft is sleeved with a tug pressing spring, the upper end of the tug pressing spring is abutted in the pressure regulating screw, the pressure regulating screw is screwed on the shell, and the side of the pressure regulating screw is provided with the scale.
Drawings
Fig. 1 is a perspective view of the present invention.
Fig. 2 is an enlarged view of fig. 1 at a.
Fig. 3 is one of the schematic views of the mop mechanism, presser foot lifting mechanism and template photoelectric sensor of the present invention.
Fig. 4 is a second schematic diagram showing the cooperation of the mop mechanism, the presser foot lifting mechanism and the template photoelectric sensor of the present invention.
In the figure: 1-pressure regulating screw; 2-a scale; 3, a machine head; 4-a guide groove; 5-template; 6-a bottom plate; 7-universal coupling; 8-a machine shell; 9-lifting and pressing the shaft by a presser foot arm; 10-a needle bar; 11-presser foot arm; 12-a needle; 13-upper guide sleeve; 14-lower guide sleeve; 15-a silica gel wheel; 16-tug hold down spring; 17-a tug boat seat; 18-a needle plate; 19-template photoelectric sensor; 20-an inductor support; 21-trailing axle; 22-lifting and pressing shaft of tug; 23-a tug; 24-presser foot arm guide; 25-presser foot arm return spring; 26-tug seat guide frame.
Detailed Description
The invention is further described in the following with specific embodiments in conjunction with the accompanying drawings:
a novel intelligent template lockstitch machine comprises a machine shell 8, wherein a mop mechanism, a template photoelectric sensor 19 and a controller (the controller is used for controlling all parts of the template lockstitch machine to orderly operate and can be arranged in the machine shell or arranged at the back of the machine shell) are arranged on the machine shell 8; in the needle plate 18 of the template flat sewing machine (in the application, the needle plate is not provided with a feeding tooth mounting hole, during actual assembly, the needle plate can be provided with a mounting hole for reserving the feeding tooth so that the flat sewing machine can be used for multiple purposes), a lower guide sleeve 14 for the needle 12 to pass through and hook is arranged on the needle plate (the lower guide sleeve can be arranged in a detachable way so that the flat sewing machine can be used for multiple purposes), the lower guide sleeve 14 can be embedded into a guide groove 4 on the template 5 to be adapted,
the machine shell 8 is also provided with a machine needle guide mechanism, the machine needle guide mechanism comprises a presser foot arm lifting and pressing shaft 9 and a link mechanism for driving the presser foot arm lifting and pressing shaft 9 to lift (the presser foot arm lifting and pressing shaft 9 is driven to lift through the link mechanism and is common knowledge of common technicians in the field, the embodiment of the link mechanism is provided, the link mechanism comprises a presser foot arm guide frame 24 fixed in the middle of the presser foot arm lifting and pressing shaft 9, a presser foot arm reset spring 25 is sleeved on the presser foot arm lifting and pressing shaft 9 on the upper side of the presser foot arm guide frame 24, the upper end of the presser foot arm reset spring 25 is abutted against the inner side of the machine shell, the left extending end of the presser foot arm guide frame 24 is arranged in a guide groove of the machine shell, a driving module of the template flat sewing machine drives the presser foot arm guide frame to slide up and down in the guide groove through a link rod), and a presser;
the presser foot comprises a presser foot arm 11, and an upper guide sleeve 13 for a needle to pass through is formed at the front end of the presser foot arm 11; the upper guide sleeve 13 is positioned right above the lower guide sleeve 14, and the upper guide sleeve and the lower guide sleeve are concentrically arranged, so that the machine needle always runs in the upper guide sleeve and the lower guide sleeve, the lower guide sleeve can be ensured not to be separated from a guide groove of the template all the time, the template always runs along a set track, and the machine needle is prevented from penetrating on the template and a needle plate to cause needle breakage or damage to machine parts; when sewing, the upper guide sleeve 13 extends into the guide groove 4 of the template under the action of the pressure arm lifting shaft 9 and is close to the lower guide sleeve 14. The approach means that the lower end of the upper guide sleeve 13 extends into the guide groove 4 but does not contact the cloth. The upper guide sleeve and the lower guide sleeve are matched and the machine needle is arranged for sewing the cloth, so that when the machine needle penetrates out of the cloth (namely, the needle is pulled up), the upper guide sleeve can slightly press the cloth to prevent the cloth from wrinkling. It should be noted that the mop mechanism, the driving structure of the column, the template photoelectric sensor, the controller and the like are all in the prior art, and the detailed description of the application is omitted. The upper guide sleeve 13 does not cause any obstruction to the sewing of the cloth.
The shell is provided with an induction device, the induction device is used for detecting that a needle sends out a control signal to the controller when the needle goes upwards and penetrates out of the cloth, and the controller controls the stepping motor of the mop mechanism to start according to the signal; the induction system sends control signal to the controller when the needle pierces the cloth downwards, the controller controls the step motor of the mop mechanism to pause according to the signal, the motor shaft of the step motor drives the mop wheel to operate through the universal coupling, so as to avoid the problem that the non-correspondence between the mop mechanism and the needle causes the cloth to be torn (the mop mechanism in ZL201320885396.3 is operated all the time, no matter whether the needle is at the cloth downside, the improper cooperation of the mop mechanism and the needle leads to the cloth to be torn easily).
The induction device is an encoder and a grating which are arranged on a main shaft of the template flat sewing machine; the encoder is matched with the grating to detect the rotation angle of the main shaft, and when the main shaft rotates to a certain angle range (namely, the main shaft is indexed and the angle range of the main shaft when the needle penetrates into the cloth is determined), the encoder gives a control signal for starting or suspending the mop mechanism to the controller when judging that the main shaft is in the angle range through the grating;
as an alternative, the sensing device may be a proximity switch installed in the housing, the proximity switch detects the stroke of the needle rod and sends a control signal to the controller when the needle rod moves upwards or downwards to a certain position, the design needs to be additionally provided with the proximity switch, and the actual using effect is slightly inferior to the effect detected by the encoder and the grating.
As a modification of the existing mop mechanism, the surface of the mop wheel 23 of the mop mechanism is provided with a silica gel wheel 15. It can effectively cooperate with the template, ensures that the phenomenon that the tow boat skids can not appear, has simple structure's advantage.
The mop mechanism comprises a mop wheel 23, a mop wheel seat 17, a mop wheel pressure-lifting shaft 22 (note that the mop wheel pressure-lifting shaft 22 is a needle bar of a traditional flat sewing machine, such as a template sewing machine in ZL201320885396.3, and the mop wheel seat is fixedly arranged on the needle bar), a mop wheel compression spring 16 and a pressure regulating screw 1; the installation of axis 22 is lifted to the tow boat in casing 8, and the tow boat lifts the epaxial cover of ladder of the upper end of axis 22 and is equipped with tow boat pressure spring 16, and the upper end of tow boat pressure spring 16 supports in pressure regulating screw 1, and pressure regulating screw 1 establishes on casing 8 soon, and the week side of pressure regulating screw 1 is provided with scale 2. The pressing force of the tug is adjustable due to the design, so that the template can run more smoothly and stably.
An automatic induction sewing method of an intelligent template flat sewing machine, wherein the template flat sewing machine comprises a template photoelectric sensor and a mop mechanism which are connected with a control system, and comprises the following steps:
1) when the template photoelectric sensor senses that the template enters a sensing area when sewing is started, the template photoelectric sensor transmits a signal to the control system, and the control system controls the presser foot and the tug to be lifted;
2) when the template is in place, the template flat sewing machine starts to perform cloth sewing work; in the cloth sewing process, the induction device sends a control signal to the control system when the needle bar descends to a set position, and the control system controls the stepping motor of the mop mechanism to pause according to the signal; when the needle bar moves upwards to a set position, the induction device sends a control signal to the control system, and the control system controls the starting of the stepping motor of the mop mechanism according to the signal;
3) when the template photoelectric sensor detects the induction area at the tail end of the guide groove of the template, the template photoelectric sensor controls the control system to automatically cut threads and finish sewing work.
The cloth sewing mode in the step 2) is that the control system automatically controls the template flat sewing machine to start cloth sewing after the cloth sensor senses that the template enters the sensing area for a plurality of seconds.
In the step 2), when the machine needle moves upwards and is about to penetrate out of the cloth, the presser foot moves downwards and presses the cloth; when the needle penetrates out of the cloth, the presser foot is lifted upwards and reset.
In the step 3), when the template flat sewing machine finishes sewing work, the control system controls the presser foot and the tug to be lifted up, and the presser foot and the tug freely fall after a plurality of seconds. Namely, a corresponding detection point I is arranged at the tail end of a guide groove of the template (namely, a final sewing point), a template photoelectric sensor detects a signal of the detection point I and gives a signal for lifting a presser foot to a controller, when an operator moves the template out, the template photoelectric sensor does not detect the corresponding detection point I and gives a signal to the controller after delaying for a certain time, a presser foot arm lifting shaft 9 and a tug lifting shaft 22 descend (saving electric energy), when the next template is in place, one side of the front end of the guide groove on the template (namely, the final sewing point) is provided with a detection point II corresponding to the template photoelectric sensor, the template photoelectric sensor detects the information of the detection point II, the presser foot arm lifting shaft 9 and the tug lifting shaft 22 are controlled to ascend, and sewing is carried out after the template is in place.
The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.
Claims (5)
1. A novel intelligent template sewing machine comprises a machine shell, wherein a mop mechanism, a template photoelectric sensor and a controller are arranged on the machine shell; the template flat sewing machine is characterized by also comprising a sensing device, wherein the sensing device is used for detecting that a control signal is sent to a controller when the machine needle goes upwards to penetrate out the cloth, and the controller controls a stepping motor of the mop mechanism to start according to the signal; the induction device sends a control signal to the controller when the machine needle moves downwards to penetrate into the cloth, the controller controls the stepping motor of the mop mechanism to pause according to the signal, and a motor shaft of the stepping motor drives the tug to run through the universal coupling;
the machine needle guide mechanism comprises a presser foot arm lifting shaft, a connecting rod mechanism for driving the presser foot arm lifting shaft to lift and a presser foot arranged at the lower end of the presser foot arm lifting shaft, and an upper guide sleeve concentric with the lower guide sleeve is arranged on the presser foot;
the presser foot comprises a presser foot arm, and the front end of the presser foot arm is formed with the upper guide sleeve for the needle to pass through; the upper guide sleeve is positioned right above the lower guide sleeve; when the seam is formed, the upper guide sleeve extends into the guide groove of the template under the action of the pressure pin arm pressure lifting shaft and is close to the lower guide sleeve;
the induction device is an encoder and a grating which are arranged on a main shaft of the template flat sewing machine; the encoder is matched with the grating to detect the rotation angle of the main shaft, and when the main shaft rotates to a certain angle range, a control signal for starting or suspending the mop mechanism is given to the controller;
or, the induction device is a proximity switch arranged in the machine shell, the proximity switch detects the stroke of the needle rod and sends a control signal to the controller when the needle rod moves upwards or downwards to a certain position;
the mop mechanism comprises a mop wheel, a mop wheel seat, a mop wheel lifting shaft, a mop wheel pressing spring and a pressure regulating screw; the tug lifting shaft is arranged in the shell, the step shaft at the upper end of the tug lifting shaft is sleeved with the tug pressing spring, the upper end of the tug pressing spring is abutted in the pressure regulating screw, the pressure regulating screw is screwed on the shell, and a scale is arranged on the peripheral side of the pressure regulating screw; the connecting rod mechanism comprises a presser foot arm guide frame fixed in the middle of the presser foot arm lifting shaft, and a presser foot arm reset spring with the upper end abutting against the inner side of the machine shell is sleeved on the presser foot arm lifting shaft on the upper side of the presser foot arm guide frame.
2. The novel intelligent template sewing machine according to claim 1, wherein a silica gel wheel is arranged on the surface of a dragging wheel of the mop mechanism.
3. An automatic induction sewing method of an intelligent template flat sewing machine, wherein the template flat sewing machine comprises a template photoelectric sensor and a mop mechanism which are connected with a control system, and is characterized by comprising the following steps:
1) when the template photoelectric sensor senses that the template enters a sensing area when sewing is started, the template photoelectric sensor transmits a signal to the control system, and the control system controls the presser foot and the tug to be lifted;
2) when the template is in place, the template flat sewing machine starts to perform cloth sewing work; in the cloth sewing process, the induction device sends a control signal to the control system when the needle bar descends to a set position, and the control system controls the stepping motor of the mop mechanism to pause according to the signal; when the needle bar moves upwards to a set position, the induction device sends a control signal to the control system, and the control system controls the starting of the stepping motor of the mop mechanism according to the signal;
3) when the template photoelectric sensor detects a sensing area at the tail end of the guide groove of the template, the template photoelectric sensor is connected to the control system, and the control system controls the template lockstitch sewing machine to automatically cut threads and finish sewing work;
when the template flat sewing machine finishes sewing work, the control system controls the presser foot and the tug to be lifted, and the presser foot and the tug freely fall after a plurality of seconds.
4. The automatic induction sewing method of the intelligent template flat sewing machine according to claim 3, characterized in that the cloth sewing mode in the step 2) is started by the control system automatically controlling the template flat sewing machine to start cloth sewing after a plurality of seconds after the cloth sensor senses that the template enters the sensing area through the setting of the control system.
5. The automatic induction sewing method of the intelligent template flat sewing machine according to claim 3, characterized in that in the step 2), when the machine needle moves upwards and is about to penetrate through the cloth, the presser foot moves downwards and presses the cloth; when the needle penetrates out of the cloth, the presser foot is lifted upwards and reset.
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| CN201510334493.7A CN104911826B (en) | 2015-06-16 | 2015-06-16 | Novel intelligent template flat sewing machine and automatic induction sewing method |
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| CN106555284A (en) * | 2015-09-30 | 2017-04-05 | 天津宝盈电脑机械有限公司 | The template of template sewing machine is to position detecting system |
| CN106868720B (en) * | 2017-04-18 | 2023-02-21 | 福恩达机器人（昆山）有限公司 | Full-automatic integrated three-dimensional sewing machine |
| CN109295619A (en) * | 2018-12-13 | 2019-02-01 | 台州通宇服装机械科技有限公司 | A kind of template compression mobile mechanism of template sewing machine |
| CN110067087B (en) * | 2019-01-14 | 2021-09-21 | 杰克缝纫机股份有限公司 | Signal adapter, sewing machine, feeding control method and storage medium |
| CN110453398B (en) * | 2019-07-31 | 2020-09-08 | 周琦 | Presser foot control mechanism for expansion type fabric |
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