CN105386241A - Needle machine and control method thereof - Google Patents
Needle machine and control method thereof Download PDFInfo
- Publication number
- CN105386241A CN105386241A CN201510788764.6A CN201510788764A CN105386241A CN 105386241 A CN105386241 A CN 105386241A CN 201510788764 A CN201510788764 A CN 201510788764A CN 105386241 A CN105386241 A CN 105386241A
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- web plate
- plate
- stripping
- holder
- driving shaft
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Abstract
The invention provides a needle machine and a control method thereof, and belongs to the field of semi-non-woven fabric manufacturing. The problems that an existing needle machine is complex in faller replacement structure and switching of a working mode and a switching mode is not stable can be solved. According to the needle machine and the control method thereof, compared with a traditional needle machine, a faller and a driving unit are omitted, the structure is simple, and the cost is saved. During faller replacement, a non-woven fabric output motor does not need to halt. Meanwhile, the needle machine will not be disturbed by measured value changes of the needle depth and plate gauge after the needle machine is switched in the working mode by setting a controller.
Description
Technical field
The invention belongs to nonwoven fabric and manufacture field, be specifically related to a kind of needing machine and control method thereof.
Background technology
Existing needing machine to become network fiber by forming the nonwoven fabric with some strength after acupuncture, in polyester filament nonwoven production process, fine dust on main needing machine (above stinging machine) needle plate is easily piled up, to a certain degree must clear up fine dust when fine dust is stacked into or changes needle plate, otherwise can damage equipment.
Needing machine does not mostly possess the needle exchange mode capabilities of Hand scarf; when needs cleaning fine dust or needle plate are changed; what take is the mode of shutting down completely; polyester filament non-woven fabric production line for consecutive production shuts down cleaning fine dust or needle exchange plate; not only affect production efficiency; and cause the increase of the expense such as consumption of raw materials, power consumption, directly affect economic benefit.Though small part needing machine has the function of not shutting down needle exchange plate, but unstable when two kinds of patterns switch, and there is larger randomness, as switchable needle machine, not only complicated in mechanical structure disclosed in patent document CN02206135, and switching is also random.If when needing machine stops dominant frequency online, if pricker does not exit web plate, then cloth cover can be caused to break the serious consequence of pricker.
In addition, needing machine because vibration, signal disturbing etc. cause the dark and plate distance of pin to change, has a strong impact on product quality, even causes equipment fault to shut down in the middle of operation.
Summary of the invention
The complex structure of needle plate changed by the needing machine that the object of the invention is to solve prior art, and the problem of instability when mode of operation and switch mode switch.
Solving the technical scheme that the technology of the present invention problem adopts is a kind of needing machine, comprising: support and be oppositely arranged holder web plate on the bracket and shell web plate, described holder web plate and the relative motion of described stripping web plate energy;
Be arranged on stripping web plate away from the needle plate of described holder web plate side, described needle plate can relatively described stripping web plate reciprocating, enable the pin on described needle plate pierce through the nonwoven fabric moved between described holder web plate and described stripping web plate;
The holder web plate position-detection sensor for detecting described holder web plate position on described support is set; And the stripping web plate position-detection sensor for detecting described stripping web plate position arranged on described support;
Controller, for receiving the detection data of described holder web plate position-detection sensor and described stripping web plate position-detection sensor, and controls described stripping web plate, described holder web plate, described needle plate.
Preferably, also comprise: the stripping web plate driving shaft carrying out moving for driving described stripping web plate;
The holder web plate driving shaft carrying out moving for driving described stripping web plate;
The needle plate driving shaft moved back and forth for driving described needle plate.
Preferably, described controller comprises: data storage cell, computing unit and comparing unit;
Described data storage cell is for receiving the data of described holder web plate position-detection sensor and the detection of described stripping web plate position-detection sensor;
Described computing unit is used for according to the described holder web plate position-detection sensor of data storage cell reception and the data calculating pin of described stripping web plate position-detection sensor detection is dark and plate distance;
Described comparing unit is used for the calculated value of dark to pin in plate distance and setting value compares.
Preferably, described described stripping web plate, described holder web plate, described needle plate carried out control and comprised:
When the calculated value of plate distance is less than setting value, controller sends the instruction of the height raising holder web plate to holder web plate driving shaft;
Or controller sends the instruction of the height reducing stripping web plate to stripping web plate driving shaft;
When the calculated value of plate distance is greater than setting value, controller sends the instruction of the height reducing holder web plate to holder web plate driving shaft;
Or controller sends the instruction of the height raising stripping web plate to stripping web plate driving shaft;
When the calculated value that pin is dark is less than setting value, controller sends the instruction of the height reducing stripping web plate to stripping web plate driving shaft;
When the calculated value of plate distance is greater than setting value, controller sends the instruction of the height raising stripping web plate to stripping web plate driving shaft.
Preferably, comprise control needing machine to switch between replacing pattern and mode of operation;
Replacing pattern:
S01 sets more switching value f01, the d01 of the dark f of pin and plate distance d;
S02 controller receives h1 and h2 that holder web plate position-detection sensor and stripping web plate position-detection sensor detect respectively, and calculates detected value f1, d1 of the dark and plate distance of pin;
S03 controller compares f01, f and d01, d1, if f01 is not equal to f or d01 be not equal to d1; The position of holder web plate and stripping web plate is then adjusted by holder web plate driving shaft and stripping web plate driving shaft;
S04 repeats step S02 and S03 to plate distance and the dark detected value of pin with more switching value is equal;
S05 reduces the speed of needle plate driver element, changes needle plate;
Mode of operation:
S11 raises the speed of needle plate driver element to working value;
S12 sets working value f02, the d02 of the dark f of pin and plate distance d;
S13 controller receives h1 and h2 that holder web plate position-detection sensor and stripping web plate position-detection sensor detect respectively, and calculates detected value f1, d1 of the dark and plate distance of pin;
S14 controller compares f01, f and d01, d1, if f01 is not equal to f or d01 be not equal to d1; Then by the position of holder web plate driving shaft and stripping web plate driving shaft adjustment holder web plate and stripping web plate, make plate distance equal with working value with the dark detected value of pin;
S15 repeats step S13 and S14 to setting-up time;
S16 controller stops step S13 and S14, starts mode of operation.
Preferably, described controller receives h1 and h2 that holder web plate position-detection sensor and stripping web plate position-detection sensor detect respectively, and computing board distance and dark detected value f1, the d1 of pin comprise:
Plate is the absolute value of the difference of h1 and h2 apart from detected value d1;
The dark detected value f1 of pin is the absolute value of the difference of needle plate tip height and needle plate stroke sum and h2.
Needing machine of the present invention and control method thereof, save a needle plate and driver element relative to traditional needing machine, and structure is simple, saving cost; And do not need the output motor of nonwoven fabric is shut down when changing needle plate; Meanwhile, by being set in that switch to after mode of operation can not the interference of measurement variation of dark by pin in plate distance to controller.
Accompanying drawing explanation
Fig. 1: be the structural representation of needing machine in embodiment of the present invention 1.
Wherein: 1. support; 2. shell web plate; 21. stripping web plate position-detection sensors; 22. stripping web plate driving shafts;
3. hold in the palm web plate; 31. holder web plate position-detection sensors; 32. holder web plate driving shafts;
4. needle plate; 41. needle plate driver elements; 5. controller;
F is that pin is dark;
D is plate distance;
H1 is the height of holder web plate;
H2 is the height of stripping web plate.
Detailed description of the invention
For making those skilled in the art understand technical scheme of the present invention better, below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
Detailed description of the invention 1
The present embodiment provides a kind of needing machine, comprising: support 1 and be oppositely arranged holder web plate 3 and stripping web plate 2 on described support 1, and described holder web plate 3 and described stripping web plate 2 can relative motions;
Be arranged on the needle plate 4 of stripping web plate 2 away from described holder web plate 3 side, described needle plate 4 can relatively described stripping web plate 2 reciprocating, enable the pin on described needle plate 4 pierce through between described holder web plate 3 and described stripping web plate 2 the nonwoven fabric (not shown in FIG.) of motion;
The holder web plate position-detection sensor 31 for detecting described holder web plate 3 position on described support 1 is set; And stripping web plate 2 position-detection sensor 21 for detecting described stripping web plate 2 position arranged on described support 1;
Controller 5, for receiving the detection data of described holder web plate position-detection sensor 31 and described stripping web plate 2 position-detection sensor 21, and controls described stripping web plate 2, described holder web plate 3, described needle plate 4.
The needing machine of the present embodiment is by controller 5, for receiving the detection data of described holder web plate position-detection sensor 31 and described stripping web plate 2 position-detection sensor 21, the difference of pin deeply and between the setting value of plate distance and calculated value can be detected, thus needing machine is switched between mode of operation and switch mode, needle plate 4 can be completed to change in the non-stop-machine situation of nonwoven fabric driver output motor, decrease the unnecessary loss of shutting down and bringing; Save a needle plate 4 and driver element relative to traditional needing machine, structure is simple, save cost; Meanwhile, by being set in that switch to after mode of operation can not the interference of measurement variation of dark by pin in plate distance to controller 5.
Preferably, also comprise: carry out for driving described stripping web plate 2 the stripping web plate driving shaft 22 moved;
The holder web plate driving shaft 32 moved is carried out for driving described stripping web plate 2;
For the needle plate driving shaft driving described needle plate 4 to move back and forth.
Should be understood that, above-mentioned driving shaft all has drive motors to connect, and is controlled by controller 5.
Preferably, described controller 5 comprises: data storage cell, computing unit and comparing unit;
Described data storage cell is for receiving the data of described holder web plate position-detection sensor 31 and the detection of described stripping web plate 2 position-detection sensor 21; Should be understood that, data storage cell also can receive the setting value of various controling parameters, such as, and the setting value of the dark and plate distance of pin.
Described computing unit is used for according to the described holder web plate position-detection sensor 31 of data storage cell reception and the data calculating pin of described stripping web plate 2 position-detection sensor 21 detection is dark and plate distance; Should be understood that, computing unit also may be used for the calculating that other functional units control.
Described comparing unit is used for the calculated value of dark to pin in plate distance and setting value compares.
Preferably, described described stripping web plate 2, described holder web plate 3, described needle plate 4 carried out control and comprised:
When the calculated value of plate distance is less than setting value, controller 5 sends the instruction of the height raising holder web plate 3 to holder web plate driving shaft 32;
Or controller 5 sends the instruction of the height reducing stripping web plate 2 to stripping web plate driving shaft 22;
When the calculated value of plate distance is greater than setting value, controller 5 sends the instruction of the height reducing holder web plate 3 to holder web plate driving shaft 32;
Or controller 5 sends the instruction of the height raising stripping web plate 2 to stripping web plate driving shaft 22;
When the calculated value that pin is dark is less than setting value, controller 5 sends the instruction of the height reducing stripping web plate 2 to stripping web plate driving shaft 22;
When the calculated value of plate distance is greater than setting value, controller 5 sends the instruction of the height raising stripping web plate 2 to stripping web plate driving shaft 22.
By the way can be dark and plate is suitable apart from adjustment by pin, combine the stroke of holder web plate 3 during embody rule, shell the stroke of web plate 2, on needle plate 4, the height of pricker and the stroke of needle plate 4 regulate, and this is no longer going to repeat them.
Embodiment 2
The present embodiment provides a kind of control method of above-mentioned needing machine, comprises control needing machine and switches between replacing pattern and mode of operation;
Replacing pattern:
S01 sets more switching value f01, the d01 of the dark f of pin and plate distance d;
Namely by outside more switching value f01, the d01 data storage cell to controller 5 inputting the dark f of pin and plate distance d, or be stored in data storage cell.
S02 controller 5 receives h1 and h2 that holder web plate position-detection sensor 31 and stripping web plate 2 position-detection sensor 21 detect respectively, and calculates detected value f1, d1 of the dark and plate distance of pin;
Preferably, plate is the absolute value of the difference of h1 and h2 apart from detected value d1;
The dark detected value f1 of pin is the absolute value of the difference of needle plate 4 tip height and needle plate stroke sum and h2; Wherein, needle plate tip height is needle plate height and needle plate driver element 41 height sum (being stored in the data storage cell of controller 5).
S03 controller 5 compares f01, f and d01, d1, if f01 is not equal to f or d01 be not equal to d1; The position of holder web plate 3 and stripping web plate 2 is then adjusted by holder web plate driving shaft 32 and stripping web plate driving shaft 22;
Concrete adjustment mode is as follows:
When the calculated value of plate distance is less than setting value, controller 5 sends the instruction of the height raising holder web plate 3 to holder web plate driving shaft 32;
Or controller 5 sends the instruction of the height reducing stripping web plate 2 to stripping web plate driving shaft 22;
When the calculated value of plate distance is greater than setting value, controller 5 sends the instruction of the height reducing holder web plate 3 to holder web plate driving shaft 32;
Or controller 5 sends the instruction of the height raising stripping web plate 2 to stripping web plate driving shaft 22;
When the calculated value that pin is dark is less than setting value, controller 5 sends the instruction of the height reducing stripping web plate 2 to stripping web plate driving shaft 22;
When the calculated value of plate distance is greater than setting value, controller 5 sends the instruction of the height raising stripping web plate 2 to stripping web plate driving shaft 22.
S04 repeats step S02 and S03 to plate distance and the dark detected value of pin with more switching value is equal.
The highest order of needle plate pricker is lower than stripping web plate 2, and plate is suitable apart from (distance between holder web plate 3 and stripping web plate 2), and nonwoven cloth cover can pass through needing machine smoothly, can not cause the phenomenon of tuck, reaches non-stop-machine object completely.
S05 reduces the speed of needle plate driver element 41, changes needle plate 4;
The motor speed of needle plate driver element 41 reduces until stop, and conveniently carries out needle plate 4 and changes.
The output motor of such nonwoven fabric does not stop, and nonwoven cloth cover still can pass through needing machine smoothly.Concerning consecutive production, it is larger for shutting down the loss caused completely.The loss caused is shut down in all fronts that above-mentioned control mode can be avoided at replacing of shorter time needle plate 4.
Mode of operation:
S11 raises the speed of needle plate driver element 41 to working value;
S12 sets working value f02, the d02 of the dark f of pin and plate distance d;
Namely by outside working value f02, the d02 data storage cell to controller 5 inputting the dark f of pin and plate distance d, or be stored in data storage cell.
S13 controller 5 receives h1 and h2 that holder web plate position-detection sensor 31 and stripping web plate 2 position-detection sensor 21 detect respectively, and calculates detected value f1, d1 of the dark and plate distance of pin;
Preferably, plate is the absolute value of the difference of h1 and h2 apart from detected value d1;
The dark detected value f1 of pin is the absolute value of the difference of needle plate tip height and needle plate stroke sum and h2; Wherein, needle plate tip height is needle plate height and needle plate driver element 41 height sum (being stored in the data storage cell of controller 5).
S14 controller 5 compares f01, f and d01, d1, if f01 is not equal to f or d01 be not equal to d1; Then adjusted the position of holder web plate 3 and stripping web plate 2 by holder web plate driving shaft 32 and stripping web plate driving shaft 22, make plate distance equal with working value with the dark detected value of pin;
Concrete adjustment mode is as follows:
When the calculated value of plate distance is less than setting value, controller 5 sends the instruction of the height raising holder web plate 3 to holder web plate driving shaft 32;
Or controller 5 sends the instruction of the height reducing stripping web plate 2 to stripping web plate driving shaft 22;
When the calculated value of plate distance is greater than setting value, controller 5 sends the instruction of the height reducing holder web plate 3 to holder web plate driving shaft 32;
Or controller 5 sends the instruction of the height raising stripping web plate 2 to stripping web plate driving shaft 22;
When the calculated value that pin is dark is less than setting value, controller 5 sends the instruction of the height reducing stripping web plate 2 to stripping web plate driving shaft 22;
When the calculated value of plate distance is greater than setting value, controller 5 sends the instruction of the height raising stripping web plate 2 to stripping web plate driving shaft 22.
Dark and the plate of such pin is apart from after having regulated, and namely acupuncture no longer pierces through nonwoven fabric, thus makes nonwoven fabric continue motion between holder web plate 3 and stripping web plate 2, the non-stop-machine object in arrival all fronts.
S15 repeats step S13 and S14 to setting-up time;
Here setting-up time can be 2 minutes, also can adjust according to applicable cases, and the adjustment of web plate continues for some time when can prevent measuring-signal from producing an interference pulse and web plate will be stopped to adjust, thus web plate is not adjusted to the right place.In other words at least ensure that the regulation time of web plate is greater than 2 minutes and just ensures that web plate is adjusted to the right place.
S16 controller 5 stops step S13 and S14, starts mode of operation.
This Time Controller 5 step carries out calculating and comparing, and web plate is adjusted to the right place, enters mode of operation.
Should be understood that, the input of the dark f of above-mentioned pin and plate distance d can be stored in the memory cell of controller, is more being switched between switching value and working value by button; User only needs button can complete the switching of needing machine between mode of operation and replacing pattern in use.
Be understandable that, the illustrative embodiments that above embodiment is only used to principle of the present invention is described and adopts, but the present invention is not limited thereto.For those skilled in the art, without departing from the spirit and substance in the present invention, can make various modification and improvement, these modification and improvement are also considered as protection scope of the present invention.
Claims (6)
1. a needing machine, is characterized in that, comprising: support and be oppositely arranged on the bracket holder web plate and stripping web plate, described holder web plate and the relative motion of described stripping web plate energy;
Be arranged on stripping web plate away from the needle plate of described holder web plate side, described needle plate can relatively described stripping web plate reciprocating, enable the pin on described needle plate pierce through the nonwoven fabric moved between described holder web plate and described stripping web plate;
The holder web plate position-detection sensor for detecting described holder web plate position on described support is set; And the stripping web plate position-detection sensor for detecting described stripping web plate position arranged on described support;
Controller, for receiving the detection data of described holder web plate position-detection sensor and described stripping web plate position-detection sensor, and controls described stripping web plate, described holder web plate, described needle plate.
2. needing machine as claimed in claim 1, is characterized in that, also comprise: the stripping web plate driving shaft carrying out moving for driving described stripping web plate;
The holder web plate driving shaft carrying out moving for driving described stripping web plate;
The needle plate driving shaft moved back and forth for driving described needle plate.
3. needing machine as claimed in claim 1, it is characterized in that, described controller comprises: data storage cell, computing unit and comparing unit;
Described data storage cell is for receiving the data of described holder web plate position-detection sensor and the detection of described stripping web plate position-detection sensor;
Described computing unit is used for according to the described holder web plate position-detection sensor of data storage cell reception and the data calculating pin of described stripping web plate position-detection sensor detection is dark and plate distance;
Described comparing unit is used for the calculated value of dark to pin in plate distance and setting value compares.
4. needing machine as claimed in claim 1, is characterized in that, described described stripping web plate, described holder web plate, described needle plate are carried out to control and comprise:
When the calculated value of plate distance is less than setting value, controller sends the instruction of the height raising holder web plate to holder web plate driving shaft;
Or controller sends the instruction of the height reducing stripping web plate to stripping web plate driving shaft;
When the calculated value of plate distance is greater than setting value, controller sends the instruction of the height reducing holder web plate to holder web plate driving shaft;
Or controller sends the instruction of the height raising stripping web plate to stripping web plate driving shaft;
When the calculated value that pin is dark is less than setting value, controller sends the instruction of the height reducing stripping web plate to stripping web plate driving shaft;
When the calculated value of plate distance is greater than setting value, controller sends the instruction of the height raising stripping web plate to stripping web plate driving shaft.
5. the control method of needing machine as claimed in claim 1, is characterized in that,
Comprise control needing machine to switch between replacing pattern and mode of operation;
Replacing pattern:
S01 sets more switching value f01, the d01 of the dark f of pin and plate distance d;
S02 controller receives h1 and h2 that holder web plate position-detection sensor and stripping web plate position-detection sensor detect respectively, and calculates detected value f1, d1 of the dark and plate distance of pin;
S03 controller compares f01, f and d01, d1, if f01 is not equal to f or d01 be not equal to d1; The position of holder web plate and stripping web plate is then adjusted by holder web plate driving shaft and stripping web plate driving shaft;
S04 repeats step S02 and S03 to plate distance and the dark detected value of pin with more switching value is equal;
S05 reduces the speed of needle plate driver element, changes needle plate;
Mode of operation:
S11 raises the speed of needle plate driver element to working value;
S12 sets working value f02, the d02 of the dark f of pin and plate distance d;
S13 controller receives h1 and h2 that holder web plate position-detection sensor and stripping web plate position-detection sensor detect respectively, and calculates detected value f1, d1 of the dark and plate distance of pin;
S14 controller compares f01, f and d01, d1, if f01 is not equal to f or d01 be not equal to d1; Then by the position of holder web plate driving shaft and stripping web plate driving shaft adjustment holder web plate and stripping web plate, make plate distance equal with working value with the dark detected value of pin;
S15 repeats step S13 and S14 to setting-up time;
S16 controller stops step S13 and S14, starts mode of operation.
6. the control method of needing machine as claimed in claim 1, is characterized in that, described controller receives h1 and h2 that holder web plate position-detection sensor and stripping web plate position-detection sensor detect respectively, and computing board distance and dark detected value f1, the d1 of pin comprise:
Plate is the absolute value of the difference of h1 and h2 apart from detected value d1;
The dark detected value f1 of pin is the absolute value of the difference of needle plate tip height and needle plate stroke sum and h2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510788764.6A CN105386241B (en) | 2015-11-16 | 2015-11-16 | The control method of needing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510788764.6A CN105386241B (en) | 2015-11-16 | 2015-11-16 | The control method of needing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105386241A true CN105386241A (en) | 2016-03-09 |
| CN105386241B CN105386241B (en) | 2018-02-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510788764.6A Active CN105386241B (en) | 2015-11-16 | 2015-11-16 | The control method of needing machine |
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| Country | Link |
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| CN (1) | CN105386241B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106120165A (en) * | 2016-08-31 | 2016-11-16 | 太仓市娄澄无纺制品有限公司 | Non-woven fabrics double-sided needling loom |
| FR3064284A1 (en) * | 2017-03-27 | 2018-09-28 | Airbus Safran Launchers Sas | INSTALLATION AND METHOD FOR NEEDLEING A FIBROUS PREFORM WITH CONTROL OF CONTACT PRESSURE OF THE DEBOUREUR |
| CN114086324A (en) * | 2021-11-12 | 2022-02-25 | 上海大学 | Controllable electric needling forming device |
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| CN2541487Y (en) * | 2002-02-28 | 2003-03-26 | 单景连 | Switchable needle machine |
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| CN202466129U (en) * | 2012-03-06 | 2012-10-03 | 必达福环境技术(无锡)有限公司 | High-accuracy digital display linkage device for stitching plate and stripping plate of needling machine |
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| GB1449641A (en) * | 1973-01-12 | 1976-09-15 | Wira & Mather | Method of and apparatus for producing a needled non-woven fabric film projectors |
| US4377889A (en) * | 1980-03-14 | 1983-03-29 | Phillips Petroleum Company | Apparatus for controlling edge uniformity in nonwoven fabrics |
| CN2541487Y (en) * | 2002-02-28 | 2003-03-26 | 单景连 | Switchable needle machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106120165A (en) * | 2016-08-31 | 2016-11-16 | 太仓市娄澄无纺制品有限公司 | Non-woven fabrics double-sided needling loom |
| CN106120165B (en) * | 2016-08-31 | 2018-07-17 | 太仓市娄澄无纺制品有限公司 | Non-woven fabrics double-sided needling loom |
| FR3064284A1 (en) * | 2017-03-27 | 2018-09-28 | Airbus Safran Launchers Sas | INSTALLATION AND METHOD FOR NEEDLEING A FIBROUS PREFORM WITH CONTROL OF CONTACT PRESSURE OF THE DEBOUREUR |
| EP3382079A1 (en) * | 2017-03-27 | 2018-10-03 | Arianegroup Sas | Installation and method for needling a fibrous preform with control of the contact pressure of the stripper |
| US10662562B2 (en) | 2017-03-27 | 2020-05-26 | Arianegroup Sas | Installation and a method for needling a fiber preform while controlling the contact pressure of the stripper |
| CN114086324A (en) * | 2021-11-12 | 2022-02-25 | 上海大学 | Controllable electric needling forming device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105386241B (en) | 2018-02-06 |
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Address after: 251500 Linyi, Shandong province Garden Street, No. 8, No. Applicant after: The rich non-woven company limited of Tianding Applicant after: Dingfeng polypropylene materials technology Co. Ltd. days Address before: 251500 Linyi, Shandong province Garden Street, No. 8, No. Applicant before: The rich non-woven company limited of Tianding Applicant before: TIANDINGFENG MATERIAL TECHNOLOGY CO., LTD. |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |