CN114892347B - Needling equipment and needling method for special-shaped fabric - Google Patents
Needling equipment and needling method for special-shaped fabric Download PDFInfo
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- CN114892347B CN114892347B CN202210125208.0A CN202210125208A CN114892347B CN 114892347 B CN114892347 B CN 114892347B CN 202210125208 A CN202210125208 A CN 202210125208A CN 114892347 B CN114892347 B CN 114892347B
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H18/00—Needling machines
- D04H18/02—Needling machines with needles
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/66—Disintegrating fibre-containing textile articles to obtain fibres for re-use
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Abstract
The invention relates to the technical field of needling, in particular to needling equipment for special fabrics, which comprises a needle plate, wherein a needle is arranged below the needle plate, and the needling equipment also comprises a lifting mechanism, a Y-direction moving mechanism, an X-direction moving mechanism and a distance sensor, and further comprises a controller, wherein the distance sensor is electrically connected with the controller, and the X-direction moving mechanism, the Y-direction moving mechanism and the lifting mechanism are electrically connected with the controller; there is provided a needling method of a needling apparatus for profiled fabrics, comprising the steps of: performing lancet mounting according to the set parameters, and setting the transverse and Y-direction moving speed; starting the device, wherein the needle plate is needled in the X direction on a single track; the needle plate translates along the Y direction, the needle plate is needled along the X direction, the needle plate reciprocates to needled, and the structure of needling equipment and the arrangement of the needle plate are designed to solve the problems of lack of needling of special-shaped fabrics with complex profiles, uneven arrangement of needling points on the surfaces of the fabrics and the like.
Description
Technical Field
The invention relates to the technical field of needling, in particular to needling equipment and a needling method for special-shaped fabrics.
Background
The three-dimensional needling molding technology is mature and applied to the preparation of flat plate type preformed bodies, and the needling method of the complex curved surface structure or the special-shaped structure is not much in reference at home and abroad because of the complex preparation technology or technical blockage. The Olry P (U.S. patent 4621662) invented a "Novoltex" needled molding technique that enabled the preparation of three-dimensional needled preforms of regular shape, such as cylindrical, conical shells, which had the disadvantage of not enabling the preparation of preforms of complex profile; then, the Olry P invents six-degree-of-freedom mechanical arm needling equipment (U.S. patent 5226217), which can adapt to needling molding of parts with complex structures, and the control difficulty of the equipment is increased by multi-axis linkage; domestic Zhang Yupeng and the like invent a special-shaped numerical control needling machine (CN 102828348B) which can be used for preparing a three-dimensional preformed body with a specific molded surface by needling, but cannot prepare a preformed body with a complex structure, and has certain limitation in equipment use; chen Xiaoming et al invent a needling apparatus (CN 105755680 a) that can meet complex preform preparation with six degrees of freedom, and a robotic path planning method (CN 110109421 a) that describes only a single trajectory and the formation of needling points, without detailed description of the distribution and formation of needling points for a single profile; jiang Yun et al invented a robotic needled molding path planning method (CN 113146631 a), again this method only describes how to generate a single trajectory and needled points, and no detailed description is made of the distribution and formation of needled points for a single profile.
Accordingly, there is an urgent need in the present invention to provide a needling apparatus and needling method for profiled fabrics.
Disclosure of Invention
The invention aims to provide needling equipment and a needling method for special-shaped fabrics, which solve the problems of lack of needling of special-shaped fabrics with complex profiles, uneven arrangement of needling points on the surfaces of the fabrics and the like by designing the structure of the needling equipment and the arrangement of needle plates.
The invention provides needling equipment for special-shaped fabrics, which comprises a needle plate, wherein needles are arranged below the needle plate;
the lifting mechanism is connected with the needle plate and used for moving the needle plate up and down for needling;
the Y-direction moving mechanism is connected with the lifting mechanism and used for moving the needle plate along the Y direction;
the X-direction moving mechanism is connected with the Y-direction moving mechanism and is used for moving the needle plate along the X direction;
the distance sensor is arranged on the needle plate and used for measuring the distance between the fabric and the needle plate;
the distance sensor is electrically connected with the controller; the X-direction moving mechanism, the Y-direction moving mechanism and the lifting mechanism are all electrically connected with the controller.
Preferably, the X-direction moving mechanism is provided with a camera for collecting the needling image of the surface of the fabric in real time; and a judging module is arranged in the controller and is used for receiving the image acquired by the camera, judging the image, and sending a control instruction to the lifting mechanism if the condition of needle disorder is judged.
Preferably, the needles under the needle plate are distributed in a rectangular lattice.
Preferably, the needles under the needle plate are distributed in a rectangular or square arrangement; the width of the needle plate is 160-300mm, and the length of the needle plate is 200-280mm.
Preferably, the width of the needle plate is 160mm and the length of the needle plate is 200mm.
Preferably, the row length of the needles under the needle plate is n×a, the row length is m×a, n is greater than or equal to 3, m is greater than or equal to 3, a is the needle pitch, n is the number of rows, and m is the number of rows.
Preferably, the needle plate is provided with a needle hole, the needle is arranged on the needle hole, and the needle is detachably connected with the needle plate.
Preferably, a net conveying device is arranged below the pricking pin, and the net conveying device further comprises a bracket and a net supporting mechanism.
A needling method based on any one of the needling apparatuses for profiled fabrics, comprising the steps of:
a) The method comprises the steps that fabrics are placed on a supporting net mechanism, the moving speed of an X-direction moving mechanism and the moving speed of a Y-direction moving mechanism are set, the X-direction moving mechanism drives a needle plate to move along the X direction, meanwhile, a distance sensor collects the distance between the needle plate and the fabrics in real time and sends the distance to a controller, and the controller controls the lifting height of a telescopic rod of a lifting mechanism according to the received distance value;
b) After the needle plate moves to a designated position, the X-direction moving mechanism stops moving, the Y-direction moving mechanism drives the needle plate to translate along the Y direction, and meanwhile, the distance sensor acquires the distance between the needle plate and the fabric in real time and sends the distance to the controller, and the controller controls the lifting height of the telescopic rod of the lifting mechanism according to the received distance value;
c) The steps a and b are alternately performed to finish needling the fabric.
Preferably, the camera collects the needling image of the fabric surface in real time, the judging module arranged in the controller receives the image collected by the camera, the controller analyzes and judges the image, and if the condition of disordered needle is judged, a control instruction is sent to the lifting mechanism; the lifting mechanism executes the receiving control instruction.
Compared with the prior art, the needling equipment and the needling method for the special-shaped fabric provided by the invention have the following steps:
1. the invention provides needling equipment for special fabrics, which is characterized in that a needle plate is designed in a rectangular lattice form, parameters such as the design of the needle parameters of the needle plate, the moving value of a needling track X direction, the distribution interval of the needling track Y direction and the like can be realized through the structural design of the needling equipment, the needling equipment for installing the needle plate is controlled to move according to a fixed length to repeat needling operation, the needling equipment is controlled to perform translation needling along the X direction on a single track according to the fixed interval, and needling distribution points of the single track in the X direction are formed after repeated translation needling, and the needling points are uniform and clear.
2. The invention provides a needling method of needling equipment for special-shaped fabrics, which comprises the steps of performing X-direction needling, then performing Y-direction translation through a needle plate, operating the needling equipment to sequentially perform translation needling on a plurality of X-direction tracks, and overlapping for a plurality of times to uniformly distribute needling points in a needling processing area.
3. The invention provides needling equipment and a needling method for special-shaped fabrics, which are characterized in that the distance sensor, the lifting mechanism and the controller are designed, the distance sensor can sense the distance between a needle plate and the fabrics in the needling process of the X direction of the needle plate, and the lifting mechanism is controlled through signal transmission with the controller, so that the descending height of the needle plate is controlled, meanwhile, the needling area of the needle plate is smaller, the needle plate can move in the X direction and the Y direction, and when the curved fabrics and the special-shaped fabrics are needled, each area of the fabrics can be needled, so that the needling equipment can be used for needling the planar fabrics and the regular curved fabrics and the special-shaped curved fabrics.
4. The invention provides needling equipment for special-shaped fabrics, which can properly reduce or increase the needle distribution in the length and width directions of a needle plate when needling different curvature molded surfaces, improve the matching of needle plate needling following type, and simultaneously increase the product adaptability of the equipment.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a drawing (cross-sectional view) of a needling apparatus for profiled textiles in accordance with the invention;
FIG. 2 is a circuit connection diagram of the needling apparatus for profiled fabrics in accordance with the present invention;
FIG. 3 is a needle board and lancet distribution diagram of the needling apparatus for profiled fabrics of the present invention;
fig. 4 is a schematic view of a needle plate of the needling method of the needling apparatus for profiled fabrics of the present invention translating needling along a single trajectory to form a distribution of needling points;
fig. 5 is a schematic view of a needle plate of the needling method of the needling apparatus for profiled fabrics according to the present invention translating needling a plurality of times along a plurality of trajectories to form a distribution of needling points;
fig. 6 is a schematic diagram of a needle plate of the needling method of the needling apparatus for a profiled fabric according to the present invention, which is a distribution of needling points formed by multiple translation needling along two trajectories on a curved fabric surface.
The reference numerals are as follows:
1. the needle plate, 2, the felting needle, 3, X direction moving mechanism, 4, Y direction moving mechanism, 5, elevating system, 6, controller, 7, distance sensor, 8, net conveying device, 9, fabric, 10, cable, 11, camera.
Detailed Description
The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in the present invention will be understood in detail by those skilled in the art.
Example 1
In this embodiment, the present invention provides a needling apparatus for profiled fabrics, as shown in figures 1, 2 and 3,
comprises a needle plate 1, a needle 2 is arranged under the needle plate 1;
the lifting mechanism 5 is connected with the needle plate 1 and is used for moving the needle plate 1 up and down for needling;
the lifting mechanism 5 comprises an air cylinder and a telescopic rod, and one end of the telescopic rod is detachably connected with the needle plate 1, so that the lifting mechanism 5 has a telescopic function;
the Y-direction moving mechanism 4 is connected with the lifting mechanism 5 and is used for moving the needle plate 1 along the Y direction;
the Y-direction moving mechanism 4 comprises a first positioning plate, wherein first side plates extending downwards are arranged on two sides of the first positioning plate, a first lead screw is arranged between the two first side plates in a penetrating manner, a first sliding block is arranged on the first lead screw in a penetrating manner, the Y-direction moving mechanism also comprises two first positioning rods arranged on the first sliding block in a penetrating manner, two sides of the first lead screw are respectively arranged on the two first positioning rods, two ends of each first positioning rod are respectively connected with the corresponding first side plates, and one end of the first lead screw penetrates out of the first side plate to be connected with a rotating shaft of the Y-direction moving driving motor;
the cylinder of the lifting mechanism 5 is detachably connected with the first positioning plate;
an X-direction moving mechanism 3 connected to the Y-direction moving mechanism 4 for moving the needle plate 1 in the X-direction;
the X-direction moving mechanism 3 comprises a second positioning plate, second side plates extending downwards are arranged on two sides of the second positioning plate, a second lead screw is arranged between the two second side plates in a penetrating mode, a second sliding block is arranged on the second lead screw in a penetrating mode, the X-direction moving mechanism further comprises two second positioning rods arranged on the second sliding block in a penetrating mode, two sides of the second lead screw are respectively arranged on the two second positioning rods, two ends of each second positioning rod are connected with the corresponding second side plates respectively, and one end of each second lead screw penetrates out of the second side plate to be connected with a rotating shaft of the X-direction moving driving motor.
The first screw, the first slider and the second screw are of the prior art, and are not described herein too much.
A distance sensor 7, which is arranged on the needle plate 1 and is used for measuring the distance between the fabric and the needle plate 1;
the device also comprises a controller 6, and a distance sensor 7 is electrically connected with the controller 6; the X-direction moving mechanism 3, the Y-direction moving mechanism 4 and the lifting mechanism 5 are electrically connected with the controller 6, and the electrical connection can realize electrical transmission through the cable 10.
The controller 6 is provided with a switch, an emergency stop switch and a touch display screen, parameters can be set, images and data can be displayed, and electric control is performed, and the structure and the function of the controller 6 are in the prior art and are not described in detail herein.
The X-direction moving mechanism 3 is connected with an X-direction moving driving motor; the Y-direction moving mechanism 4 is connected with a Y-direction moving driving motor; the lifting mechanism 5 is connected with a lifting driving part, and the X-direction moving driving motor, the Y-direction moving driving motor and the lifting driving part are all electrically connected with the controller 6.
The X-direction moving mechanism 3 is provided with a camera 11 which is used for collecting needling images of the surface of the fabric in real time, is electrically connected with the controller and is provided with at least 1 camera 11; the controller 6 is provided with a judging module, which is used for receiving the image collected by the camera 11, judging the image, and sending a control instruction to the lifting mechanism 5 if the condition of needle disorder is judged.
The needles 2 under the needle plate 1 are distributed in rectangular lattice.
The needles 2 under the needle plate 1 are distributed in a rectangle;
the width of the needle plate 1 was 160mm and the length of the needle plate 1 was 200mm.
The row length of the needles 2 under the needle plate 1 is n×a, the row length is m×a, n=3, m=4, a is the needle pitch, n is the number of rows, and m is the number of rows.
Needle holes are arranged on the needle plate 1, the needles 2 are arranged on the needle holes, and the needles 2 are detachably connected with the needle plate 1.
A net conveying device 8 is arranged below the needle 2, and the net conveying device 8 also comprises a bracket and a net supporting mechanism.
A needling method for a needling apparatus for profiled fabrics, comprising the steps of:
a) Placing fabric 9 on the net supporting mechanism, setting the moving speed of the X-direction moving mechanism 3 and the moving speed of the Y-direction moving mechanism 4, driving the needle plate 1 to move along the X direction by the X-direction moving mechanism 3, simultaneously collecting the distance between the needle plate 1 and the fabric 9 in real time by the distance sensor 7, sending the distance to the controller, and controlling the lifting height of the telescopic rod of the lifting mechanism 5 by the controller according to the received distance value;
b) After the needle plate 1 moves to a designated position, the X-direction moving mechanism 3 stops moving, the Y-direction moving mechanism 4 drives the needle plate 1 to translate along the Y direction, and meanwhile, the distance sensor 7 collects the distance between the needle plate 1 and the fabric 9 in real time and sends the distance to the controller, and the controller controls the lifting height of the telescopic rod of the lifting mechanism 5 according to the received distance value;
c) The steps a and b are alternately performed to finish needling the fabric.
The camera 11 collects the needling image of the fabric surface in real time, the judging module arranged in the controller receives the image collected by the camera 11, the controller 6 displays, analyzes and judges the image, and if the condition of needle disorder is judged, a control instruction is sent to the lifting mechanism 5; the lifting mechanism 5 executes the reception control instruction. Therefore, the needling condition of the surface of the fabric can be observed in real time, and the phenomenon of needle disorder can be avoided, so that the uniformly needled fabric is prepared.
The design parameters of the planar needling point distribution are shown in Table one:
surface-plane needling point distribution design parameter table
In the needling method of the needling equipment for the special-shaped fabric, in the embodiment, a plurality of rows of rectangular lattice structures are selected for needling, and a needle plate is designed to be a rectangular lattice structure with 4 rows and 3 columns, and 4 multiplied by 3=12 needles are altogether adopted; in the length and width directions of the needle plate, the distance between adjacent needles is set as E, and the distance between the needle points after theoretical needling is set as a multiple relationship, wherein E=na; the pitch of needling points after theoretical needling, a=8mm, the pitch of adjacent needles E Long length =5×8=40 mm, adjacent lancet spacing E Wide width of ＝2×8＝16mm。
If the length and width of the needle board cloth needle are required to be properly adjusted according to the curved surface size during the curved surface needling design, in this embodiment, the planar needling is performed, so that the length and width of the needle board cloth needle are not required to be adjusted.
As shown in fig. 4 and 5, A1-A6 are needling points of a single track on a plane; B1-B6 are all tracks on a plane; a1-1 is 12 needling points distributed in 4 multiplied by 3; a1-2 is that after the needle plate translates for 1 time on the A1-1 position, 12 needling points distributed in 4 multiplied by 3 are generated; a1-3 is 12 needling points which are distributed by 4X 3 after the needle plate translates for 1 time on the A1-2 position for needling.
Designing the X-direction and Y-direction operation parameters of the needling equipment based on the needle board and needle distribution parameters, comprising: the needle holes of the needle plate 1 are arranged in a rectangular form, and the distance between the needle points which can be arranged in the adjacent needle intervals in the length and width directions of the needle plate is F, in the embodiment, E Long length =40 mm, then F Long length =40+.8=5, E Wide width of 16mm, F Wide width of =16+.8=2.
The X direction of the needling track is the X direction of a single track, the moving distance of the needle plate in the X direction on the track is M, and the moving distance can be determined according to the adjacent needle distance E of the needle plate, the column number c of the needle plate and the needling point n between adjacent needles after needling, and is M=c×E/n; the distance between the X-direction tracks in the Y-direction translation is N, and is determined according to the distance E between adjacent needles of the needle plate, the line number d of the needle plate and the number N of needling points between the adjacent needles after needling, and is N=d×E/N.
In this embodiment: the adjacent needle distance E of the needle plate is known Wide width of Needle punching point n which is distributed between adjacent needles in the width direction of the needle plate and is 16mm and the column number c of the needle plate is 3 Wide width of The needle plate moves at a single track X by a distance m=c×e=2 Wide width of ÷n Wide width of ＝3×16÷2＝24mm。
The adjacent needle distance E of the needle plate is known Long length Needle count n which is 40mm, and is distributable between adjacent needles in the length direction of the needle plate, wherein the row number d of the needle plate is 4 rows Long length 5, a plurality of X-direction tracks are distributed in Y direction at a spacing of N=d×E Long length ÷n Long length ＝4×40÷5＝32mm。
The needling points are distributed approximately in a rectangular lattice along the track of the needling equipment after needling and are uniformly distributed in the needling area; comprising the following steps:
the needle plate translates and needling for many times along the X direction on a single track, and after needling points are overlapped, a needling density standard reaching area is formed in the middle area of the X direction.
In this embodiment, the needle board translates and performs needling with a fixed length along a single track X, and A1-1 in fig. 4 shows 12 needling points in total formed by 3 columns and 4 rows by the 1 st needling of the needle board; then the needle plate translates 24mm along the track B1X, and after needling, 12 needling points are formed in total in 3 rows and 4 columns shown as A1-2 in FIG. 4; the needle plate translates 24mm along the X direction of the track B1, and after needling, 12 needling points are formed in total in 3 rows and 4 columns shown as A1-3 in FIG. 4; the needle plate translates for 5 times along the X direction of 24mm to form 4 needling points shown as A1 in FIG. 5, and needling points formed by 8 times of translation needling of the needle plate are uniformly distributed along the track B1 on the molded surface;
the needle plate translates and acupuncture is carried out for a plurality of times along the Y direction on a plurality of tracks, and after acupuncture points are overlapped, an acupuncture density standard reaching area is formed in the middle area of the Y direction.
In this embodiment, the method specifically includes the following steps: after the needle plate completes needling of the track B1, the needle plate translates 32mm along the Y direction, and carries out translation needling along the track B2 to form 4 needling points shown as A2 in FIG. 5; then the needle plate translates 32mm along the Y direction, and translates needling is carried out along the track B3, so as to form 4 needling points shown as A4 in FIG. 5; then the needle plate translates 32mm along Y direction in turn, and the needling is translated along X direction of the tracks B4, B5 and B6, so as to form the distribution of needling points shown in figure 5.
After the needle plate translates for 6 times along the Y direction and carries out X-direction translation needling operation according to the track, needling points can be uniformly distributed in the needling domain, as shown in fig. 5.
Example two
In this embodiment, the invention provides a needling apparatus for profiled fabrics, as shown in fig. 1, 2 and 3, comprising a needle plate 1, under which needles 2 are arranged;
the lifting mechanism 5 is connected with the needle plate 1 and is used for moving the needle plate 1 up and down for needling;
the lifting mechanism 5 comprises an air cylinder and a telescopic rod, and one end of the telescopic rod is detachably connected with the needle plate 1, so that the lifting mechanism 5 has a telescopic function;
the Y-direction moving mechanism 4 is connected with the lifting mechanism 5 and is used for moving the needle plate 1 along the Y direction;
the Y-direction moving mechanism 4 comprises a first positioning plate, wherein first side plates extending downwards are arranged on two sides of the first positioning plate, a first lead screw is arranged between the two first side plates in a penetrating manner, a first sliding block is arranged on the first lead screw in a penetrating manner, the Y-direction moving mechanism also comprises two first positioning rods arranged on the first sliding block in a penetrating manner, two sides of the first lead screw are respectively arranged on the two first positioning rods, two ends of each first positioning rod are respectively connected with the corresponding first side plates, and one end of the first lead screw penetrates out of the first side plate to be connected with a rotating shaft of the Y-direction moving driving motor;
the cylinder of the lifting mechanism 5 is detachably connected with the first positioning plate;
an X-direction moving mechanism 3 connected to the Y-direction moving mechanism 4 for moving the needle plate 1 in the X-direction;
the X-direction moving mechanism 3 comprises a second positioning plate, second side plates extending downwards are arranged on two sides of the second positioning plate, a second lead screw is arranged between the two second side plates in a penetrating mode, a second sliding block is arranged on the second lead screw in a penetrating mode, the X-direction moving mechanism further comprises two second positioning rods arranged on the second sliding block in a penetrating mode, two sides of the second lead screw are respectively arranged on the two second positioning rods, two ends of each second positioning rod are connected with the corresponding second side plates respectively, and one end of each second lead screw penetrates out of the second side plate to be connected with a rotating shaft of the X-direction moving driving motor.
The first screw, the first slider and the second screw are of the prior art, and are not described herein too much.
A distance sensor 7, which is arranged on the needle plate 1 and is used for measuring the distance between the fabric and the needle plate 1;
the device also comprises a controller 6, and a distance sensor 7 is electrically connected with the controller 6; the X-direction moving mechanism 3, the Y-direction moving mechanism 4 and the lifting mechanism 5 are electrically connected with the controller 6, and the electrical connection can realize electrical transmission through the cable 10.
The controller 6 is provided with a switch, an emergency stop switch and a touch display screen, parameters can be set, images and data can be displayed, and electric control is performed, and the structure and the function of the controller 6 are in the prior art and are not described in detail herein.
The X-direction moving mechanism 3 is connected with an X-direction moving driving motor; the Y-direction moving mechanism 4 is connected with a Y-direction moving driving motor; the lifting mechanism 5 is connected with a lifting driving part, and the X-direction moving driving motor, the Y-direction moving driving motor and the lifting driving part are all electrically connected with the controller 6.
The X-direction moving mechanism 3 is provided with a camera 11 which is used for collecting needling images of the surface of the fabric in real time, is electrically connected with the controller and is provided with at least 1 camera 11; the controller 6 is provided with a judging module, which is used for receiving the image collected by the camera 11, judging the image, and sending a control instruction to the lifting mechanism 5 if the condition of needle disorder is judged.
The needles 2 under the needle plate 1 are distributed in rectangular lattice.
The needles 2 under the needle plate 1 are distributed in a rectangle;
the width of the needle plate 1 was 300mm, and the length of the needle plate 1 was 280mm.
The row length of the needles 2 under the needle plate 1 is n×a, the row length is m×a, n=3, m=8, a is the needle pitch, n is the number of rows, and m is the number of rows.
Needle holes are arranged on the needle plate 1, the needles 2 are arranged on the needle holes, and the needles 2 are detachably connected with the needle plate 1.
A net conveying device 8 is arranged below the needle 2, and the net conveying device 8 also comprises a bracket and a net supporting mechanism.
A needling method for a needling apparatus for profiled fabrics, comprising the steps of:
a) Placing fabric 9 on the net supporting mechanism, setting the moving speed of the X-direction moving mechanism 3 and the moving speed of the Y-direction moving mechanism 4, driving the needle plate 1 to move along the X direction by the X-direction moving mechanism 3, simultaneously collecting the distance between the needle plate 1 and the fabric 9 in real time by the distance sensor 7, sending the distance to the controller, and controlling the lifting height of the telescopic rod of the lifting mechanism 5 by the controller according to the received distance value;
b) After the needle plate 1 moves to a designated position, the X-direction moving mechanism 3 stops moving, the Y-direction moving mechanism 4 drives the needle plate 1 to translate along the Y direction, and meanwhile, the distance sensor 7 collects the distance between the needle plate 1 and the fabric 9 in real time and sends the distance to the controller, and the controller controls the lifting height of the telescopic rod of the lifting mechanism 5 according to the received distance value;
c) The steps a and b are alternately performed to finish needling the fabric.
The camera 11 collects the needling image of the fabric surface in real time, the judging module arranged in the controller receives the image collected by the camera 11, the controller 6 displays, analyzes and judges the image, and if the condition of needle disorder is judged, a control instruction is sent to the lifting mechanism 5; the lifting mechanism 5 executes the reception control instruction. Therefore, the needling condition of the surface of the fabric can be observed in real time, and the phenomenon of needle disorder can be avoided, so that the uniformly needled fabric is prepared.
The design of the technological parameters is shown in a table II:
surface two-plane needling point distribution design parameter table
The needling method of the needling equipment for the special-shaped fabric, which is described in the embodiment, specifically comprises the following steps:
as shown in fig. 4, 5 and 6, A1-A6 are needling points of a single track on a plane; B1-B6 are all tracks on a plane; a1-1 is 12 needling points distributed in 4 multiplied by 3; a1-2 is that after the needle plate translates for 1 time on the A1-1 position, 12 needling points distributed in 4 multiplied by 3 are generated; a1-3 is that after the needle plate translates for 1 time on the A1-2 position, 12 needling points distributed in 4X 3 are generated; c1 and C2 are needling points of a single track on the curved surface; d1 to D10 are trajectories on curved surfaces.
In this embodiment, the method specifically includes the following steps: the needle distribution is carried out by selecting a multi-row rectangular lattice structure, and the needles of the needle plate 1 are designed to be arranged into 8 rows and 3 rows of rectangular lattice structures, and the total number of the needles is 8 multiplied by 3=24.
The needle holes of the needle plate are arranged in a square form, and the distance E between adjacent needles is in a multiple relation with the needle point distance a after theoretical needling, wherein E=na;
in this example, the pitch of the needling points after theoretical needling, a=4 mm, the adjacent needle pitch, E long=5×4=20 mm, and the adjacent needle pitch, E wide=2×4=8 mm.
In the embodiment, the length and width of the needle plate and the needle cloth are properly adjusted according to the curved surface size when the curved surface needling design is performed.
And calculating needling density again according to the scanning lengths of the upper end and the lower end of the needle plate, and adjusting the length of the needle plate according to the needling density value.
Designing the X-direction and Y-direction operation parameters of needling equipment based on the needle plate and needle distribution parameters; comprising the following steps:
the needle holes of the needle plate are arranged in a rectangular or square form, and the number F of needling points which can be arranged in the spacing between adjacent needles in the length and width directions of the needle plate is consistent with the multiple n;
in this embodiment, the length of E is 20mm, and the length of f=20++4=5, and the width of E is 8mm, and the width of f=8++4=2.
The X direction of the needling profile is the X direction of a single track, and the moving distance M of the needle plate in the X direction on the track can be determined according to the adjacent needle distance E of the needle plate, the column number c of the needle plate and the needling point n between adjacent needles after needling, and is M=c×E/n; the X direction of the needling surface is the X direction of a single track, the spacing N of a plurality of X-direction tracks in the Y direction can be determined according to the adjacent needle distance E of the needle plate, the row number d of the needle plate and the needling point N between adjacent needles after needling, and the spacing N is M=d×E/N.
In this embodiment, it is known that the needle pitch E width=8 mm between adjacent needle boards, the column number c=3 columns of needle boards, and the number n width=2 of needling points which can be distributed between adjacent needles in the width direction of the needle boards move at a pitch m=c×e width n width=3×8×2=12 mm in the single track X.
As is known, the needle pitch E length=20 mm between adjacent needle plates, the number d=8 of needle plates, and the number N length=5 of needling points which can be distributed between adjacent needles in the longitudinal direction of the needle plates, and the pitch n=d×e length/N length=8×20/5=32 mm between a plurality of X-direction tracks arranged in the Y direction.
The needling points are distributed approximately in a rectangular lattice along the track of the needling equipment after needling and are uniformly distributed in the needling area; comprising the following steps: the needle plate translates and needling for many times along the X direction on a single track, and after needling points are overlapped, a needling density standard reaching area is formed in the middle area of the X direction.
In the embodiment, the needle plate translates and is needled in a fixed length along a single track X, the needle plate translates and is needled along a track D1 in FIG. 6 in a 12mmX direction successively, the needling point forming process is similar to that in FIG. 1, and 8 needling points shown in C1 in FIG. 6 are formed after multiple needling along the track D1; the needle plate translates and acupuncture for multiple times along the Y direction on a plurality of tracks, and after needling points are overlapped, a needling density standard-reaching area is formed in the middle area of the Y direction; after needling of the track D1 is completed, the needle plate translates 32mm along the Y direction, and translational needling is carried out along the track B2, so that 8 needling points shown as D2 in FIG. 6 are formed; then the needle plate translates 32mm along Y direction in turn, and the needle plate translates along the tracks D3, D4, D10 and D11X to form needling points, the distribution of which is shown in figure 6.
According to the embodiment, the needle plate cloth needle is designed in a rectangular lattice mode, parameters such as cloth needle parameter design, a needle track X-direction moving value, a needle track Y-direction distribution interval and the like of the needle plate can be realized through structural design of the needle plate, the needle plate-mounted needle plate-based needle device is controlled to move according to fixed length to repeat the needle punching operation, the needle plate-based needle device is controlled to perform translation needle punching on a single track according to fixed interval along the X direction, and needle punching distribution points of the single track in the X direction are formed after the needle punching is performed in multiple translation, and the needle punching points are uniform and clear; when the needle is used for needling different curvature molded surfaces, the needle distribution amount in the length and width directions of the needle plate can be properly reduced or increased, the needle following type matching property of the needle plate is improved, and meanwhile, the product adaptability of the equipment is improved.
According to the needling method of the needling equipment for the special-shaped fabric, after needling in the X direction, the needling equipment is operated to sequentially perform translational needling on a plurality of X-direction tracks through Y-direction translation of the needle plate, needling points are uniformly distributed in a needling processing area through repeated superposition, the needling points on the surface of the obtained fabric can be uniformly distributed, complex calculation work of needling point distribution is reduced, and design and editing work of single needling point of the fabric are simplified.
According to the needling equipment and the needling method for the special-shaped fabrics, through the design of the distance sensor, the lifting mechanism and the controller, the distance sensor can sense the distance between the needle plate and the fabrics in the needling process of the needle plate in the X direction, and through signal transmission with the controller, the lifting mechanism is controlled, so that the descending height of the needle plate is controlled, meanwhile, the needling area of the needle plate is smaller, the X-direction movement and the Y-direction movement can be realized, and when the curved fabrics and the special-shaped fabrics are needled, needling can be realized in each area of the fabrics, and not only can be used for needling the plane fabrics, but also can be realized for needling the regular curved fabrics and the special-shaped curved fabrics.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.
Claims (8)
1. A needling apparatus for profiled fabrics, characterized in that,
comprises a needle plate (1), and a needle (2) is arranged below the needle plate (1);
the lifting mechanism (5) is connected with the needle plate (1) and is used for moving the needle plate (1) up and down;
the Y-direction moving mechanism (4) is connected with the lifting mechanism (5) and is used for moving the needle plate (1) along the Y direction;
an X-direction moving mechanism (3) connected with the Y-direction moving mechanism (4) and used for moving the needle plate (1) along the X direction;
the distance sensor (7) is arranged on the needle plate (1) and is used for measuring the distance between the fabric and the needle plate (1);
the device also comprises a controller (6), and the distance sensor (7) is electrically connected with the controller (6); the X-direction moving mechanism (3), the Y-direction moving mechanism (4) and the lifting mechanism (5) are electrically connected with the controller (6); the X-direction moving mechanism (3) is provided with a camera (11) for collecting the needling image of the surface of the fabric in real time; the controller (6) is internally provided with a judging module which is used for receiving the image acquired by the camera (11) and judging the image, and if the condition of disordered needle is judged, a control instruction is sent to the lifting mechanism (5).
2. Needling apparatus for profiled fabrics according to claim 1, characterized in that the needles (2) under the needle plate (1) are distributed in a rectangular lattice.
3. Needling apparatus for profiled fabrics according to claim 2, characterized in that the needles (2) under the needle plate (1) are distributed in a rectangular or square arrangement; the width of the needle plate (1) is 160-300mm, and the length of the needle plate (1) is 200-280mm.
4. A needling apparatus for profiled fabrics as claimed in claim 3, characterized in that the width of the needle board (1) is 160mm and the length of the needle board (1) is 200mm.
5. Needling apparatus for profiled fabrics according to claim 4, characterized in that the rows of needles (2) under the needle plate (1) are n x a, the row length is m x a, n is 3 or more, m is 3 or more, a is the needle pitch, n is the column number, m is the row number.
6. Needling apparatus for profiled fabrics according to claim 5, characterized in that the needle board (1) is provided with needle holes on which the needles (2) are mounted, the needles (2) being detachably connected to the needle board (1).
7. Needling apparatus for profiled fabrics according to claim 6, characterized in that the needle (2) is provided with a web-feeding device (8) underneath, the web-feeding device (8) further comprising a support and a web-holding mechanism.
8. A needling method based on a needling apparatus for profiled fabrics as defined in any of claims 1-7, characterized by the steps of:
a) The method comprises the steps that a fabric (9) is placed on a supporting net mechanism, the moving speed of an X-direction moving mechanism (3) and the moving speed of a Y-direction moving mechanism (4) are set, the X-direction moving mechanism (3) drives a needle plate (1) to move along the X direction, meanwhile, a distance sensor (7) collects the distance between the needle plate (1) and the fabric (9) in real time and sends the distance to a controller, and the controller controls the lifting height of a telescopic rod of a lifting mechanism (5) according to a received distance value;
b) After the needle plate (1) moves to a designated position, the X-direction moving mechanism (3) stops moving, the Y-direction moving mechanism (4) drives the needle plate (1) to translate along the Y direction, meanwhile, the distance sensor (7) collects the distance between the needle plate (1) and the fabric (9) in real time and sends the distance to the controller, and the controller controls the lifting height of the telescopic rod of the lifting mechanism (5) according to the received distance value;
c) Alternating the steps a and b to finish needling the fabric;
the device comprises a camera (11), a judging module, a lifting mechanism (5) and a controller, wherein the camera (11) acquires a needling image of the surface of a fabric in real time, the judging module arranged in the controller receives the image acquired by the camera (11), the controller (6) analyzes and judges the image, and if the condition of disordered needles is judged, a control instruction is sent to the lifting mechanism (5); the lifting mechanism (5) executes the receiving control instruction.
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| CN202210125208.0A CN114892347B (en) | 2022-02-10 | 2022-02-10 | Needling equipment and needling method for special-shaped fabric |
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| CN202210125208.0A CN114892347B (en) | 2022-02-10 | 2022-02-10 | Needling equipment and needling method for special-shaped fabric |
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| CN114892347A CN114892347A (en) | 2022-08-12 |
| CN114892347B true CN114892347B (en) | 2023-07-04 |
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| FR2265891A1 (en) * | 1974-03-26 | 1975-10-24 | Bertin & Cie | Non-woven fabric prodn. - from fibre lap of which the fibres are entangled by fluid jets directed onto lap |
| FR2265895A1 (en) * | 1974-03-29 | 1975-10-24 | Balamundi France | Needling fibre mat to produce relief pattern by locally moving mat - to vary penetration depth of needles |
| JP3070428B2 (en) * | 1995-02-08 | 2000-07-31 | 株式会社豊田自動織機製作所 | 3D fiber tissue manufacturing equipment |
| JP3137945B2 (en) * | 1998-06-10 | 2001-02-26 | バリオマチックマシン株式会社 | Multi-needle body, multi-needle head and needling machine |
| US6374469B1 (en) * | 2001-06-13 | 2002-04-23 | Messier-Bugatti | Needling machine provided with a device for measuring penetration |
| PT104843A (en) * | 2009-11-27 | 2011-05-27 | Univ Do Minho | STRUCTURES OF THREE-DIMENSIONAL NON-FABRICS WITHOUT FORM FOR ACTIONAL ISOLATION AND ASSOCIATED PRODUCTION MECHANISM |
| JP5217049B1 (en) * | 2011-12-26 | 2013-06-19 | 山梨県 | Decorative needle punching machine |
| CN107435187B (en) * | 2017-07-25 | 2019-05-28 | 常州大学 | Equal static pressure linkage D refraction statics braider |
| CN207435677U (en) * | 2017-11-15 | 2018-06-01 | 天津工业大学 | A kind of molding multilayer carbon cloth stitching devices of carbon fiber stereo fabric |
| CN108103671A (en) * | 2018-02-01 | 2018-06-01 | 天津工业大学 | A kind of robot acupuncture apparatus based on servo pin tartar's unit |
| CN108749235B (en) * | 2018-05-06 | 2020-02-14 | 湖北鱼鹤制衣有限公司 | Polytetrafluoroethylene interlayer super-hydrophobic sound-absorbing needle-punched non-woven textile composite material and preparation method thereof |
| CN109208185A (en) * | 2018-11-12 | 2019-01-15 | 天津工业大学 | A kind of odd-shaped cross section non-woven cloth stereo fabric needing machine |
| CN210529191U (en) * | 2019-07-11 | 2020-05-15 | 武汉环宇飞龙新材料科技有限公司 | Automatic processing system for special-shaped felt |
| CN210886484U (en) * | 2019-09-27 | 2020-06-30 | 扬州华凯机械有限公司 | Pure miscellaneous cloth needle type needle loom |
| CN214992237U (en) * | 2021-04-26 | 2021-12-03 | 凯本（天津）新材料科技有限公司 | Modified electric reciprocating needling tool |
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