CN114775161B - Continuous cross-linking braiding method and equipment under full-load spindle - Google Patents
Continuous cross-linking braiding method and equipment under full-load spindle Download PDFInfo
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- CN114775161B CN114775161B CN202210251290.1A CN202210251290A CN114775161B CN 114775161 B CN114775161 B CN 114775161B CN 202210251290 A CN202210251290 A CN 202210251290A CN 114775161 B CN114775161 B CN 114775161B
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- 238000004132 cross linking Methods 0.000 title claims abstract description 157
- 238000009954 braiding Methods 0.000 title claims abstract description 146
- 238000000034 method Methods 0.000 title claims abstract description 27
- 230000007704 transition Effects 0.000 claims abstract description 74
- 239000010410 layer Substances 0.000 claims description 152
- 238000009940 knitting Methods 0.000 claims description 139
- 238000009941 weaving Methods 0.000 claims description 30
- 239000003638 chemical reducing agent Substances 0.000 claims description 24
- 238000007789 sealing Methods 0.000 claims description 16
- 230000001360 synchronised effect Effects 0.000 claims description 6
- 239000011229 interlayer Substances 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 claims description 3
- 230000033228 biological regulation Effects 0.000 claims description 2
- 239000000835 fiber Substances 0.000 description 6
- 239000002131 composite material Substances 0.000 description 5
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000032798 delamination Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Classifications
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04C—BRAIDING OR MANUFACTURE OF LACE, INCLUDING BOBBIN-NET OR CARBONISED LACE; BRAIDING MACHINES; BRAID; LACE
- D04C3/00—Braiding or lacing machines
- D04C3/40—Braiding or lacing machines for making tubular braids by circulating strand supplies around braiding centre at equal distances
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04C—BRAIDING OR MANUFACTURE OF LACE, INCLUDING BOBBIN-NET OR CARBONISED LACE; BRAIDING MACHINES; BRAID; LACE
- D04C3/00—Braiding or lacing machines
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04C—BRAIDING OR MANUFACTURE OF LACE, INCLUDING BOBBIN-NET OR CARBONISED LACE; BRAIDING MACHINES; BRAID; LACE
- D04C3/00—Braiding or lacing machines
- D04C3/02—Braiding or lacing machines with spool carriers guided by track plates or by bobbin heads exclusively
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Braiding, Manufacturing Of Bobbin-Net Or Lace, And Manufacturing Of Nets By Knotting (AREA)
Abstract
The invention relates to a continuous cross-linking braiding method and equipment under full-load spindle, wherein a closed loop is formed by n rows of even braiding driving plates, the braiding is carried out on a braiding machine with m (n/m is even) rows of cross-linking driving plates, 2m (1 duty cycle) or 4m (2 duty cycle) spindles of an inner braiding layer and an outer braiding layer enter the cross-linking driving plates through turning blocks, after the braiding driving plates rotate for a plurality of circles, spindles on an inner layer of the cross-linking driving plates move to an outer layer, and spindles on the outer layer move to the inner layer, so that continuous cross-linking braiding is realized. The continuous cross-linking braiding machine includes a braiding chassis component, a frame component, a braiding dial component, a cross-linking dial component, a transition shaft component, a turning block component, a braiding ring component, and a spindle. The frame part is installed on the foundation, the braiding machine disk part is installed on the frame part, the braiding ring part is installed on the braiding machine disk part, and 2n braiding machine disk parts, m/2 crosslinking machine disk parts, m/2 transition shaft parts, m steering block parts and 4n spindles are arranged on the inner surface of the braiding machine disk part.
Description
Technical Field
The invention belongs to the field of three-dimensional braiding technology and equipment, and relates to a continuous cross-linking braiding method under a full-load spindle and braiding equipment adopting the method.
Background
The three-dimensional braiding technology overcomes the problem of easy delamination between two-dimensional braiding preformed layers, and is widely applied to the production of composite structural members in the fields of automobiles, aviation, aerospace, military and the like.
Three-dimensional braiding techniques commonly used in the industry at present include two-step, four-step, rotary three-dimensional braiding and the like. In the two-step method and the four-step method, the knitting process needs to be stopped, the knitting speed is low, and the mechanical structure is easy to wear due to vibration impact caused by frequent start and stop. Conventional rotary three-dimensional braiding techniques can achieve continuous braiding, but suffer from the following disadvantages: (1) the spindle arrangement form is 1 to 3, the fiber volume fraction and strength of the formed composite material are low, the section size of the braiding preform is small, and the occupied area of the braiding machine is large; (2) the cylindrical surface and spherical surface three-dimensional braiding machine has axial clearance between the spindle seat and the driving plate due to the mechanical structure, the braiding speed is low, the end surface three-dimensional braiding machine requires spindles with large yarn storage quantity, yarn fuzzing is serious, and the mechanical property of the fabric is poor. Patent CN206173587U, although capable of braiding a preform with a high fiber volume fraction, has the following drawbacks: (1) the inner and outer braiding layers are crosslinked by stopping the machine, so that the production efficiency is low; (2) the number of spindles of the inner and outer braiding layers is different, and the braiding method is not suitable for braiding large-size cross-section preformed bodies.
Disclosure of Invention
The invention aims to solve the technical problems that: the spindle arrangement form of the existing rotary continuous three-dimensional braiding machine in the industry is 1 to 3 space, so that the preformed body has small section size, the formed composite material has low fiber volume fraction and strength, and the braiding machine has large outline size and lower running speed.
In order to solve the technical problems, the technical scheme of the invention provides a continuous cross-linking braiding method under full-load spindle, which is characterized in that a closed loop is formed by n rows of braiding driving plates, the braiding is performed on a braiding machine with m rows of cross-linking driving plates, n is an even number, and n/m is an even number; the n rows of knitting driving plates are respectively positioned on the inner knitting layer and the outer knitting layer; the arrangement form of the spindles on the knitting driving plate is 1 duty cycle 1 or 2 duty cycle 2; when knitting, if the arrangement form of the spindles on the knitting driving plate is 1 duty cycle, 2m spindles of the inner and outer knitting layers enter the cross-linking driving plate through the turning block, and if the arrangement form of the spindles on the knitting driving plate is 2 duty cycle, 4m spindles of the inner and outer knitting layers enter the cross-linking driving plate through the turning block; after the braiding driving plate rotates for a plurality of circles, spindles on the inner layer on the crosslinking driving plate move to the outer layer, and the spindles on the outer layer move to the inner layer, so that continuous crosslinking braiding is realized.
Preferably, the upper surface of the steering block is provided with a cross spindle track and a parallel spindle track, and the continuous cross-linking knitting method under the full-load spindle specifically comprises the following steps:
step 1, exchanging all steering blocks to a parallel track position state, placing all initial positions of spindles according to 1 space or 2 space, and rotating the spindles around the centers of respective knitting driving plates of an inner knitting layer and an outer knitting layer to perform in-layer knitting;
step 2, exchanging all steering blocks to a crossed track position state; if the spindle arrangement form is 1 duty cycle, the braiding dial rotates pi rad, the crosslinking dial rotates 2 pi/3 rad, and if the spindle arrangement form is 2 duty cycle, the braiding dial rotates 2 pi/3 rad, and the crosslinking dial rotates pi rad; spindles participating in the crosslinking of the inner and outer braiding layers enter a crosslinking driving plate through a crossing spindle track on the upper surface of the steering block to be connected between layers;
step 3, exchanging all steering blocks to a parallel track position state; if the spindle arrangement form is 1 duty 1, the knitting driving plate rotatesThe cross-linking driving plate rotates pi/3 rad, if the spindle arrangement form is 2 duty cycle, the braiding driving plate rotates +.>The crosslinking dial is stationary; the spindles which do not participate in the crosslinking of the inner and outer braiding layers revolve around the centers of the braiding driving plates respectively, and the spindles which participate in the crosslinking of the inner and outer braiding layers weave in-layer around the crosslinking driving plates respectively;
step 4, exchanging all steering blocks to a crossed track position state; if the spindle arrangement form is 1 duty cycle, the braiding driving plate rotates pi rad, the crosslinking driving plate rotates 2 pi/3 rad, and if the spindle arrangement form is 2 duty cycle, the braiding driving plate rotates 2 pi rad, the crosslinking driving plate rotates pi rad, and the spindle on the crosslinking driving plate enters the braiding driving plate through a crossed spindle track on the upper surface of the steering block to carry out interlayer connection;
and 5, circulating the steps 1 to 4 to finish continuous cross-linking knitting under full spindle loading.
Preferably, the knitting dial driving component for driving the knitting dial, the crosslinking dial driving component for driving the crosslinking dial and the steering block driving component for driving the steering block are driven by a variable frequency speed regulation, a stepping motor or a servo motor, all the knitting dials synchronously move through a circumferential gear and an axial gear, the whole knitting process is not stopped, and the driving of the crosslinking dial and the steering block is regulated according to a specific process, so that the three-dimensional preformed body crosslinked at any position is realized.
Another technical scheme of the invention is to provide continuous cross-linking knitting equipment under full-load spindle for realizing the continuous cross-linking knitting method under full-load spindle, which is characterized by comprising a knitting chassis part, a frame part, a knitting dial part containing the knitting dial, a cross-linking dial part containing the cross-linking dial, a transition shaft part, a turning block part containing the turning block, a knitting ring part and a spindle;
the frame part is arranged on the foundation, the knitting chassis part is arranged on the frame part, the knitting ring part is arranged on the knitting chassis part, and 2n knitting driving plate parts, m/2 crosslinking driving plate parts, m/2 transition shaft parts, m turning block parts and 4n spindles are arranged on the inner surface of the knitting chassis part; 4n spindles are arranged on 2n knitting dial components according to the full-load spindle principle; n of the 2n braiding dial components are located in the inner braiding layer, and the remaining n braiding dial components are located in the outer braiding layer; the inner braiding layer and the outer braiding layer realize synchronous rotation through a transition shaft part; m/2 crosslinking dial components are positioned on the crosslinking layer; spindles located on the outer braid or the inner braid can enter the crosslinked layer through the turning block.
Preferably, the woven chassis component comprises a woven chassis, cross track inserts, side plates, back plates, and parallel track inserts;
the two sides of the outer cylindrical surface of the knitting chassis are fixedly connected with side plates, the back plate is arranged between the side plates at the two sides, and the side plates are arranged on the frame part;
n weaving layer through holes and weaving layer groove type spindle tracks are distributed on two sides of an inner cylindrical surface of the weaving chassis along the circumferential direction and serve as an outer weaving layer and an inner weaving layer respectively, the weaving layer through holes and the corresponding weaving layer groove type spindle tracks are concentric, weaving layer counter bores with the same diameter as the cross track embedded blocks are processed at the intersection of adjacent weaving layer groove type spindle tracks, and 2n cross track embedded blocks are fixedly connected in the weaving layer counter bores respectively;
m cross-linking layer through holes and cross-linking layer groove type spindle tracks are uniformly distributed between the inner braiding layer and the outer braiding layer in the circumferential direction and serve as cross-linking layers, and the cross-linking layer through holes and the corresponding cross-linking layer groove type spindle tracks are concentric; processing counter bores with the same diameter as the parallel track embedded blocks at the junction of the groove-shaped spindle track of the ith crosslinking layer and the groove-shaped spindle track of the axially adjacent braiding layer in the crosslinking layer, wherein i=1, 2, … …, m/2 and m parallel track embedded blocks are respectively fixedly connected in the counter bores; processing through holes with the same diameter as the turning block parts at the junction of the 2i-1 th cross-linking layer groove-type spindle track and the axially adjacent weaving layer groove-type spindle track in the cross-linking layer, wherein m turning block parts are respectively arranged in the through holes;
the knitting chassis, the crossed track inserts and the groove type spindle tracks on the parallel track inserts form an 'infinity' type spindle track.
Preferably, the frame part comprises two side brackets, a base fixing frame and a base; the two side brackets and the base are arranged on the foundation, the base fixing frame is fixedly connected to the upper surface of the base, and the upper surface of the base fixing frame is fixedly connected with the lower side plate.
Preferably, the knitting dial component is installed in the through holes on two sides of the inner cylindrical surface of the knitting chassis, and the knitting dial component comprises 2n-m knitting dial components and m knitting dial transition components;
the braiding dial transition assembly is arranged in a braiding layer through hole adjacent to a 2 i-th crosslinking layer through hole in the crosslinking layer; the knitting dial transition assembly comprises a knitting transition dial, a lip-shaped sealing ring I, a tapered roller bearing I, a circumferential tapered gear I, an axial spur gear I and a locking round nut I which are sequentially connected in series; 4U-shaped notches are processed on the upper end face of the knitting transition driving plate; the first lip-shaped sealing ring is arranged at the shaft shoulder at the upper part of the knitting transition driving plate; the first tapered roller bearings are arranged in the middle of the knitting transition driving plate; the first circumferential conical gear and the first axial spur gear are arranged on a spline of the knitting transition driving plate, and the lower part is axially positioned through a first locking round nut;
the knitting driving plate assembly comprises a knitting driving plate, a lip-shaped sealing ring II, a tapered roller bearing II, a circumferential tapered gear II, a shaft sleeve and a locking round nut II which are sequentially connected in series; 4U-shaped notches are processed on the upper end face of the knitting driving plate; the lip-shaped sealing ring II is arranged at the shaft shoulder at the upper part of the knitting driving plate; the two tapered roller bearings II are arranged in the middle of the knitting driving plate; the second circumferential bevel gear is arranged on a spline of the knitting driving plate, and the lower part is axially positioned through a shaft sleeve and a second locking round nut; the n knitting driving plate parts of the inner knitting layer or the outer knitting layer realize synchronous rotation through a circumferential conical gear II which is meshed circumferentially; the outer braiding layer and the inner braiding layer realize synchronous rotation through an axial spur gear I and an axial spur gear II which are axially meshed with the transition shaft part of the braiding driving plate transition assembly.
Preferably, the cross-linked dial component is installed in the 2i-1 th cross-linked layer through hole in the cross-linked layer; the cross-linking driving plate component comprises a cross-linking driving plate, a lip-shaped sealing ring III, a tapered roller bearing III, a cross-linking driving plate coupler and a clutch brake motor component which are sequentially connected in series; 6U-shaped notches are processed on the upper end face of the cross-linking driving plate; the lip-shaped sealing ring III is arranged at the shaft shoulder at the upper part of the cross-linking driving plate; the three tapered roller bearings are arranged in the middle of the cross-linking driving plate; one end of the cross-linking driving plate coupler is fixedly connected with a cylindrical shaft at the lower part of the cross-linking driving plate, the other end of the cross-linking driving plate coupler is fixedly connected with a clutch brake motor assembly, and the clutch brake motor assembly is arranged on an independent motor mounting frame fixedly connected with the back plate.
Preferably, the transition shaft member is installed in the 2 i-th crosslinking layer through hole in the crosslinking layer; the transition shaft part comprises a transition shaft, a lip-shaped sealing ring IV, a tapered roller bearing IV, an axial spur gear II, a locking round nut III, a transition shaft coupler, a speed reducer shaft and a servo motor speed reducer assembly which are sequentially connected in series; the lip-shaped sealing ring IV is arranged at the shaft shoulder at the upper part of the transition shaft; the two tapered roller bearings IV are arranged in the middle of the transition shaft; the second axial spur gear is arranged on a spline of the transition shaft, and the lower part of the second axial spur gear is positioned in a triaxial manner through a locking round nut; one end of the transition shaft coupler is fixedly connected with the cylindrical shafts at the lower parts of the four transition shafts uniformly distributed along the circumferential direction, the other end of the transition shaft coupler is fixedly connected with the reducer shaft, the reducer shaft is arranged in a through hole of a reducer assembly of the servo motor, and the reducer assembly of the servo motor is arranged on a reducer mounting frame fixedly connected with the back plate.
Preferably, the steering block component comprises a steering block, a bevel gear, a stepping motor and a stepping motor mounting frame; the upper surface of the steering block is provided with a cross spindle track and a parallel spindle track, when the steering block is in a parallel track state, the axially adjacent weaving layer groove type spindle tracks are mutually not intersected, and when the steering block is in a cross track state, the axially adjacent weaving layer groove type spindle tracks form a cross; the cylindrical shaft at the lower part of the steering block is fixedly connected with a bevel gear, the output end of the stepping motor is fixedly connected with the bevel gear, and the steering block is driven to rotate in a bevel gear transmission mode; the stepping motor is arranged on a stepping motor mounting frame fixedly connected in the square groove of the outer cylindrical surface of the knitting chassis.
The invention has the following beneficial effects:
(1) The woven preform is a three-dimensional fabric structure under a full spindle with 1-duty or 2-duty, and is suitable for composite material parts with large cross-sectional size and high fiber volume fraction and strength.
(2) According to the working conditions and mechanical property requirements of different composite material parts, the interlayer crosslinking position and the crosslinking length of the three-dimensional preformed body can be regulated and controlled on line, and the product customization is greatly improved.
(3) The three-dimensional preformed body is free from stopping in the braiding process, high in braiding speed, small in outline dimension and convenient to process and assemble, and fiber continuity and production efficiency are improved.
Drawings
FIGS. 1A and 1B illustrate the position of the steering block;
FIGS. 2A and 2B show the initial position of the spindle "1 on duty" and "2 on duty" in the initial position;
FIG. 3A and FIG. 3B are steps of spindle continuous cross-linking braiding;
FIG. 4 is a continuous cross-linking braiding apparatus with full spindles;
FIG. 5 is a woven chassis component;
FIG. 6 is a frame member;
FIG. 7 is a mechanical drive schematic of the dial;
FIGS. 8A and 8B are a braiding dial transition assembly and a braiding dial assembly;
FIG. 9 is a cross-linked dial component;
FIG. 10 is a transition shaft component;
fig. 11 is a steering block component.
Wherein the 1-weave chassis part, 2-frame part, 3-weave dial part, 4-cross-link dial part, 5-transition shaft part, 6-turn block part, 7-weave ring part, 8-spindle, 9-weave chassis, 10-cross-track insert, 11-side plate, 12-back plate, 13-parallel track insert, 14-two side brackets, 15-base mount, 16-base, 17-weave dial assembly, 18-weave dial transition assembly, 19-weave transition dial, 20-lip seal ring, 21-tapered roller bearing, 22-circumferential conical gear, 23-axial spur gear, 24-lock round nut, 25-weave dial, 26-sleeve, 27-cross-link dial, 28-cross-link dial coupling, 29-clutch brake motor assembly, 30-independent motor mount, 31-transition shaft, 32-transition shaft coupling, 33-speed reducer shaft, 34-servo motor speed reducer assembly, 35-speed reducer mount, 36-turn block, 37-bevel gear, 38-stepper motor, 39-stepper motor, 40-eye sheath, 41-small yarn.
Detailed Description
The invention will be further illustrated with reference to specific examples. It is to be understood that these examples are illustrative of the present invention and are not intended to limit the scope of the present invention. Further, it is understood that various changes and modifications may be made by those skilled in the art after reading the teachings of the present invention, and such equivalents are intended to fall within the scope of the claims appended hereto.
As shown in fig. 1A to 3B, a closed loop is constituted by n rows of knitting dials 25 in total, n is an even number, m rows of crosslinking dials 27 are provided, and n/m is an even number. The n rows of braiding dials 25 are located in the inner braiding layer and the outer braiding layer, respectively, the m rows of crosslinking dials are located in the crosslinking layer, and the crosslinking layer is located between the inner braiding layer and the outer braiding layer.
The continuous cross-linking braiding method under the full-load spindle disclosed by the invention specifically comprises the following steps:
step 1, exchanging all turning blocks 36 to a parallel track position state, placing all spindles 8 at initial positions on a knitting dial 25 according to a full spindle loading principle, namely '1 duty 1' or '2 duty 2', wherein an inner knitting layer and an outer knitting layer are not crosslinked, and the spindles 8 positioned on the inner knitting layer and the outer knitting layer rotate around the centers of the knitting dial 25 to carry out inner knitting;
step 2, exchanging all turning blocks 36 to a crossed track position state, enabling a knitting driving plate 25 to rotate pi rad (1 duty cycle) or 3 pi/2 rad (2 duty cycle), enabling a crosslinking driving plate 27 to rotate 3 pi/2 rad (1 duty cycle) or pi rad (2 duty cycle), enabling spindles 8 participating in crosslinking of inner and outer knitting layers to enter the crosslinking driving plate 27 from the knitting driving plate 25 of the inner knitting layer or the knitting driving plate 25 of the outer knitting layer through crossed spindle tracks provided by the turning blocks 36 to perform interlayer connection;
step 3, all turning blocks 36 are exchanged to a parallel track position state, and the knitting driving plate 25 rotates(1 duty 1) or +.>(2 duty cycle), the cross-linking driving plate 27 rotates pi/3 rad (1 duty cycle) or is static (2 duty cycle), the spindle 8 which does not participate in the cross-linking of the inner and outer braiding layers rotates around the center of the respective braiding driving plate 25, and the spindle 8 which participates in the cross-linking of the inner and outer braiding layers weaves in layers around the respective cross-linking driving plate 27;
and 4, exchanging all steering blocks 36 to a state of crossed track positions, enabling the braiding driving plate 25 to rotate pi rad (1 duty cycle) or 2 pi rad (2 duty cycle), enabling the crosslinking driving plate 27 to rotate 2 pi/3 rad (1 duty cycle) or pi rad (2 duty cycle), and enabling the spindle 8 on the crosslinking driving plate 27 to enter the braiding driving plate 25 through crossed spindle tracks provided by the steering blocks 36 to perform interlayer connection.
And 5, circulating the steps 1 to 4 to finish continuous cross-linking knitting under full spindle loading.
The braiding dial driving part for driving the braiding dial 25, the crosslinking dial driving part for driving the crosslinking dial 27 and the steering block driving part for driving the steering block 36 are driven by a variable frequency speed control, a stepping motor or a servo motor, all the braiding dials 25 synchronously move through a circumferential gear and an axial gear, the whole braiding process is not stopped, and the driving of the crosslinking dial 27 and the steering block 36 is regulated according to a specific process, so that the three-dimensional preformed body crosslinked at any position is realized.
The present embodiment also discloses a continuous cross-linking knitting apparatus under full spindle, as shown in fig. 4, comprising a knitting chassis part 1, a frame part 2, a knitting dial part 3, a cross-linking dial part 4, a transition shaft part 5, a turning block part 6, a knitting ring part 7 and a spindle 8. The frame part 2 is mounted on the foundation, the knitted chassis part 1 is mounted on the frame part 4, and the knitted loop part 7 is mounted on the knitted chassis part 1. 240 braiding dial components 3, 15 crosslinking dial components 4, 15 transition shaft components 5, 30 turning block components 6 and 480 spindles 8 are provided on the inner surface of the braiding chassis component 1.
Referring to fig. 5, the knitted chassis component 1 includes a knitted chassis 9, cross rail inserts 10, side plates 11, back plates 12 and parallel rail inserts 13. Two sides of the outer cylindrical surface of the knitting chassis 9 are fixedly connected with 8 side plates 11, 30 backboard 12 are arranged between the side plates 11 at two sides, and the side plates 11 are arranged on the frame part 2. 120 through holes and groove-shaped spindle tracks are circumferentially distributed on two sides of the inner cylindrical surface of the knitting chassis 9 and are respectively used as an inner knitting layer and an outer knitting layer, the through holes and the corresponding groove-shaped spindle tracks are concentric, counter bores with the same diameter as the cross track embedded blocks 10 are processed at the junction of the adjacent groove-shaped spindle tracks, and 240 cross track embedded blocks 10 are fixedly arranged in the counter bores respectively. And 30 through holes and groove-shaped spindle tracks are uniformly distributed between the two braiding layers in the circumferential direction and serve as crosslinking layers, and the through holes and the corresponding groove-shaped spindle tracks are concentric. And 2i (i=1, 2, … …, 15) th groove-shaped spindle track in the crosslinking layer is processed into counter bores with the same diameter as the parallel track embedded blocks 13 at the junction of the groove-shaped spindle track of the axially adjacent inner weaving layer and the groove-shaped spindle track of the outer weaving layer, and 30 parallel track embedded blocks 13 are respectively fixedly connected in the counter bores. In the crosslinking layer, a through hole with the same diameter as the turning block part 6 is processed at the intersection of the 2i-1 (i=1, 2, … …, 15) groove-shaped spindle rail and the groove-shaped spindle rail of the axially adjacent inner weaving layer and the groove-shaped spindle rail of the outer weaving layer, and 30 turning block parts 6 are respectively arranged in the through holes. The knitting chassis 9, the cross rail inserts 10 and the groove type spindle rail on the parallel rail inserts 13 form a "-infinity" type spindle rail.
Referring to fig. 6, the frame member 2 includes both side brackets 14, a base mount 15, and a base 16. The two side brackets 14 and the base 16 are arranged on the foundation, the base fixing frame 15 is fixedly connected to the upper surface of the base 16, and the upper surface of the base fixing frame 15 is fixedly connected with the lower side plate 11.
Referring to fig. 7 to 10, 240 knitting dial members 3 are installed in through holes at both sides of an inner cylindrical surface of the knitting chassis 9, and the knitting dial member 3 includes 210 knitting dial assemblies 17 and 30 knitting dial transition assemblies 18. The woven dial transition assembly 18 is mounted within the woven layer throughbore adjacent to the 2i (i=1, 2, … …, 15) th of the cross-linked layer throughbores. The braiding transition assembly 18 comprises a braiding transition dial 19 and a lip seal 20, a tapered roller bearing 21, a circumferential conical gear 22, an axial spur gear 23 and a locking round nut 24 which are sequentially connected in series. 4U-shaped notches are processed on the upper end face of the knitting transition driving plate 19. The lip seal ring 20 is installed at the upper shaft shoulder of the knitting transition driving plate 19 to prevent the lubricating oil in the gear box from leaking out and the dust such as external fiber from entering the gear box. 2 tapered roller bearings 21 are mounted in the middle of the woven transition dial 19 to facilitate the dial to turn around and bear loads. The circumferential bevel gear 22 and the axial spur gear 23 are mounted on the spline of the knitting transition dial 19, and the lower part is axially positioned by a locking round nut 24. The braiding dial assembly 17 comprises a braiding dial 25 and a lip seal ring 20, a tapered roller bearing 21, a circumferential tapered gear 22, a shaft sleeve 26 and a locking round nut 24 which are sequentially connected in series. The upper end face of the knitting dial 25 is processed with 4U-shaped notches. The mounting structure of the lip seal 20 and tapered roller bearing 21 is consistent with the woven dial transition assembly 18. The circumferential bevel gear 22 is mounted on a spline of the braiding dial 25, and the lower part is axially positioned by a shaft sleeve 26 and a locking round nut 24. The 120 woven dial components 3 of the inner or outer woven layer are synchronously rotated by the circumferential conical gears 22 which are meshed circumferentially, and the inner woven layer and the outer woven layer are synchronously rotated by the axial spur gears 23 which are meshed axially by the woven dial transition assembly 18 and the transition shaft component 5.
15 cross-linked dial components 4 are mounted in the 2i-1 (i=1, 2, … …, 15) th through holes in the cross-linked layer. The cross-linking dial component 4 includes a cross-linking dial 27 and a lip seal ring 20, a tapered roller bearing 21, a cross-linking dial coupling 28, and a clutch brake motor assembly 29, which are sequentially connected in series. The upper end face of the cross-linking driving plate 27 is provided with 6U-shaped notches. The mounting structure of the lip seal 20 and tapered roller bearing 21 is consistent with the woven dial transition assembly 18. One end of the cross-linking driving plate coupler 28 is fixedly connected with a lower cylindrical shaft of the cross-linking driving plate 27, and the other end is fixedly connected with a clutch brake motor assembly 29. The clutch brake motor assembly 29 is mounted on a separate motor mount 30 that is fixedly attached to the backing plate 12.
15 transition shaft members 5 are mounted in the 2i (i=1, 2, … …, 15) th through holes in the crosslinked layer. The transition shaft part 5 comprises a transition shaft 31 and a lip seal ring 20, a tapered roller bearing 21, an axial spur gear 23, a locking round nut 24, a transition shaft coupling 32, a speed reducer shaft 33 and a servo motor speed reducer assembly 34 which are sequentially connected in series. The mounting structure of the lip seal 20, tapered roller bearing 21, axial spur gear 23 and lock round nut 24 is consistent with the woven dial transition assembly 18. One end of the transition shaft coupler 32 is fixedly connected with the lower cylindrical shafts of the 4 transition shafts 31 uniformly distributed along the circumferential direction, the other end of the transition shaft coupler is fixedly connected with the reducer shaft 33, and the reducer shaft 33 is arranged in a through hole of the servo motor reducer assembly 34. The servo motor reducer assembly 34 is mounted on a reducer mount 35 that is fixedly attached to the back plate 12.
Referring to fig. 11, the steering block part 6 includes a steering block 36, a bevel gear 37, a stepping motor 38, and a stepping motor mount 39. The upper surface of the turning block 36 is machined with cross spindle tracks and parallel spindle tracks: when the turning blocks 36 are in the parallel track state, axially adjacent groove spindle tracks do not intersect each other; axially adjacent channel spindle tracks form an intersection when the diverter blocks 36 are in the crossed track condition. The cylindrical shaft at the lower part of the steering block 36 is fixedly connected with a bevel gear 37, the output end of the stepping motor 38 is fixedly connected with the bevel gear 37, and the steering block 36 is driven to rotate in a bevel gear transmission mode. The stepper motor 38 is mounted on a stepper motor mount 39 fixedly attached to the braiding disc 9 in a square recess in the outer cylindrical surface.
Claims (7)
1. A continuous cross-linking braiding method under full-load spindle is characterized in that a closed loop is formed by n rows of braiding driving plates, the braiding is carried out on a braiding machine with m rows of cross-linking driving plates, n is an even number, and n/m is an even number; the n rows of knitting driving plates are respectively positioned on the inner knitting layer and the outer knitting layer; the arrangement form of the spindles on the knitting driving plate is 1 duty cycle 1 or 2 duty cycle 2; when knitting, if the arrangement form of the spindles on the knitting driving plate is 1 duty cycle, 2m spindles of the inner and outer knitting layers enter the cross-linking driving plate through the turning block, and if the arrangement form of the spindles on the knitting driving plate is 2 duty cycle, 4m spindles of the inner and outer knitting layers enter the cross-linking driving plate through the turning block; after the braiding driving plate rotates for a plurality of circles, spindles on the inner layer on the crosslinking driving plate move to the outer layer, and the spindles on the outer layer move to the inner layer, so that continuous crosslinking braiding is realized; the upper surface of the steering block is provided with a cross spindle track and a parallel spindle track, and the continuous cross-linking knitting method under the full-load spindle specifically comprises the following steps:
step 1, exchanging all steering blocks to a parallel track position state, placing all initial positions of spindles according to 1 space or 2 space, and rotating the spindles around the centers of respective knitting driving plates of an inner knitting layer and an outer knitting layer to perform in-layer knitting;
step 2, exchanging all steering blocks to a crossed track position state; if the spindle arrangement form is 1 duty cycle, the braiding dial rotates pi rad, the crosslinking dial rotates 2 pi/3 rad, and if the spindle arrangement form is 2 duty cycle, the braiding dial rotates 2 pi/3 rad, and the crosslinking dial rotates pi rad; spindles participating in the crosslinking of the inner and outer braiding layers enter a crosslinking driving plate through a crossing spindle track on the upper surface of the steering block to be connected between layers;
step 3, exchanging all steering blocks to a parallel track position state; if the spindle arrangement form is 1 duty cycle, the braiding driving plate rotates (n/m-1) multiplied by pi rad, the crosslinking driving plate rotates pi/3 rad, and if the spindle arrangement form is 2 duty cycle, the braiding driving plate rotates (n/m-2) multiplied by pi rad, and the crosslinking driving plate is stationary; the spindles which do not participate in the crosslinking of the inner and outer braiding layers revolve around the centers of the braiding driving plates respectively, and the spindles which participate in the crosslinking of the inner and outer braiding layers weave in-layer around the crosslinking driving plates respectively;
step 4, exchanging all steering blocks to a crossed track position state; if the spindle arrangement form is 1 duty cycle, the braiding driving plate rotates pi rad, the crosslinking driving plate rotates 2 pi/3 rad, and if the spindle arrangement form is 2 duty cycle, the braiding driving plate rotates 2 pi rad, the crosslinking driving plate rotates pi rad, and the spindle on the crosslinking driving plate enters the braiding driving plate through a crossed spindle track on the upper surface of the steering block to carry out interlayer connection;
and 5, circulating the steps 1 to 4 to finish continuous cross-linking knitting under full spindle loading.
2. The method for continuously cross-linking and knitting under full-load spindle as claimed in claim 1, wherein the knitting driving part for driving the knitting driving plate, the cross-linking driving part for driving the cross-linking driving plate and the turning block driving part for driving the turning block are driven by variable frequency speed regulation, a stepping motor or a servo motor, all the knitting driving plates are synchronously moved by a circumferential gear and an axial gear, the whole knitting process is not stopped, and the driving of the cross-linking driving plate and the turning block is adjusted according to a specific process, thereby realizing the three-dimensional preform cross-linked at any position.
3. A full-spindle continuous cross-linking braiding apparatus for implementing the full-spindle continuous cross-linking braiding method of claim 1, wherein the full-spindle continuous cross-linking braiding apparatus comprises a braiding machine disc part, a machine frame part, a braiding dial part comprising a braiding dial, a cross-linking dial part comprising the cross-linking dial, a transition shaft part, a turning block part comprising the turning block, a braiding ring part and a spindle;
the frame part is arranged on the foundation, the knitting chassis part is arranged on the frame part, the knitting ring part is arranged on the knitting chassis part, and 2n knitting driving plate parts, m/2 crosslinking driving plate parts, m/2 transition shaft parts, m turning block parts and 4n spindles are arranged on the inner surface of the knitting chassis part; 4n spindles are arranged on 2n knitting dial components according to the full-load spindle principle; n of the 2n braiding dial components are located in the inner braiding layer, and the remaining n braiding dial components are located in the outer braiding layer; the inner braiding layer and the outer braiding layer realize synchronous rotation through a transition shaft part; m/2 crosslinking dial components are positioned on the crosslinking layer; spindles positioned on the outer braiding layer or the inner braiding layer can enter the crosslinking layer through the steering block;
the braiding chassis component comprises a braiding chassis, a crossed track insert, a side plate, a back plate and a parallel track insert;
the two sides of the outer cylindrical surface of the knitting chassis are fixedly connected with side plates, the back plate is arranged between the side plates at the two sides, and the side plates are arranged on the frame part;
n weaving layer through holes and weaving layer groove type spindle tracks are distributed on two sides of an inner cylindrical surface of the weaving chassis along the circumferential direction and serve as an outer weaving layer and an inner weaving layer respectively, the weaving layer through holes and the corresponding weaving layer groove type spindle tracks are concentric, weaving layer counter bores with the same diameter as the cross track embedded blocks are processed at the intersection of adjacent weaving layer groove type spindle tracks, and 2n cross track embedded blocks are fixedly connected in the weaving layer counter bores respectively;
m cross-linking layer through holes and cross-linking layer groove type spindle tracks are uniformly distributed between the inner braiding layer and the outer braiding layer in the circumferential direction and serve as cross-linking layers, and the cross-linking layer through holes and the corresponding cross-linking layer groove type spindle tracks are concentric; processing counter bores with the same diameter as the parallel track embedded blocks at the junction of the groove-shaped spindle track of the ith crosslinking layer and the groove-shaped spindle track of the axially adjacent braiding layer in the crosslinking layer, wherein i=1, 2, … …, m/2 and m parallel track embedded blocks are respectively fixedly connected in the counter bores; processing through holes with the same diameter as the turning block parts at the junction of the 2i-1 th cross-linking layer groove-type spindle track and the axially adjacent weaving layer groove-type spindle track in the cross-linking layer, wherein m turning block parts are respectively arranged in the through holes;
the knitting chassis, the crossed rail embedded blocks and the groove type spindle rail on the parallel rail embedded blocks form an 'infinity' type spindle rail;
the knitting dial component is arranged in through holes on two sides of the inner cylindrical surface of the knitting chassis, and comprises 2n-m knitting dial components and m knitting dial transition components;
the braiding dial transition assembly is arranged in a braiding layer through hole adjacent to a 2 i-th crosslinking layer through hole in the crosslinking layer; the knitting dial transition assembly comprises a knitting transition dial, a lip-shaped sealing ring I, a tapered roller bearing I, a circumferential tapered gear I, an axial spur gear I and a locking round nut I which are sequentially connected in series; 4U-shaped notches are processed on the upper end face of the knitting transition driving plate; the first lip-shaped sealing ring is arranged at the shaft shoulder at the upper part of the knitting transition driving plate; the first tapered roller bearings are arranged in the middle of the knitting transition driving plate; the first circumferential conical gear and the first axial spur gear are arranged on a spline of the knitting transition driving plate, and the lower part is axially positioned through a first locking round nut;
the knitting driving plate assembly comprises a knitting driving plate, a lip-shaped sealing ring II, a tapered roller bearing II, a circumferential tapered gear II, a shaft sleeve and a locking round nut II which are sequentially connected in series; 4U-shaped notches are processed on the upper end face of the knitting driving plate; the lip-shaped sealing ring II is arranged at the shaft shoulder at the upper part of the knitting driving plate; the two tapered roller bearings II are arranged in the middle of the knitting driving plate; the second circumferential bevel gear is arranged on a spline of the knitting driving plate, and the lower part is axially positioned through a shaft sleeve and a second locking round nut; the n knitting driving plate parts of the inner knitting layer or the outer knitting layer realize synchronous rotation through a circumferential conical gear II which is meshed circumferentially; the outer braiding layer and the inner braiding layer realize synchronous rotation through an axial spur gear I and an axial spur gear II which are axially meshed with the transition shaft part of the braiding driving plate transition assembly.
4. A continuous cross-linking braiding apparatus under a full load spindle as claimed in claim 3, wherein the frame member comprises two side brackets, a base mount and a base; the two side brackets and the base are arranged on the foundation, the base fixing frame is fixedly connected with the upper surface of the base, and the upper surface of the base fixing frame is fixedly connected with the lower side plate
5. A full spindle continuous cross-linking braiding apparatus as claimed in claim 3 wherein said cross-linking dial member is mounted in the 2i-1 th cross-linking layer through-hole in the cross-linking layer; the cross-linking driving plate component comprises a cross-linking driving plate, a lip-shaped sealing ring III, a tapered roller bearing III, a cross-linking driving plate coupler and a clutch brake motor component which are sequentially connected in series; 6U-shaped notches are processed on the upper end face of the cross-linking driving plate; the lip-shaped sealing ring III is arranged at the shaft shoulder at the upper part of the cross-linking driving plate; the three tapered roller bearings are arranged in the middle of the cross-linking driving plate; one end of the cross-linking driving plate coupler is fixedly connected with a cylindrical shaft at the lower part of the cross-linking driving plate, the other end of the cross-linking driving plate coupler is fixedly connected with a clutch brake motor assembly, and the clutch brake motor assembly is arranged on an independent motor mounting frame fixedly connected with the back plate.
6. A continuous cross-linking braiding apparatus under a full load spindle as claimed in claim 3 wherein the transition shaft member is mounted in the 2 i-th cross-link layer through-hole in the cross-link layer; the transition shaft part comprises a transition shaft, a lip-shaped sealing ring IV, a tapered roller bearing IV, an axial spur gear II, a locking round nut III, a transition shaft coupler, a speed reducer shaft and a servo motor speed reducer assembly which are sequentially connected in series; the lip-shaped sealing ring IV is arranged at the shaft shoulder at the upper part of the transition shaft; the two tapered roller bearings IV are arranged in the middle of the transition shaft; the second axial spur gear is arranged on a spline of the transition shaft, and the lower part of the second axial spur gear is positioned in a triaxial manner through a locking round nut; one end of the transition shaft coupler is fixedly connected with the cylindrical shafts at the lower parts of the four transition shafts uniformly distributed along the circumferential direction, the other end of the transition shaft coupler is fixedly connected with the reducer shaft, the reducer shaft is arranged in a through hole of a reducer assembly of the servo motor, and the reducer assembly of the servo motor is arranged on a reducer mounting frame fixedly connected with the back plate.
7. A full spindle continuous cross-linking braiding machine as claimed in claim 3 wherein the steering block means comprises steering blocks, bevel gears, stepper motors and stepper motor mounts; the upper surface of the steering block is provided with a cross spindle track and a parallel spindle track, when the steering block is in a parallel track state, the axially adjacent weaving layer groove type spindle tracks are mutually not intersected, and when the steering block is in a cross track state, the axially adjacent weaving layer groove type spindle tracks form a cross; the cylindrical shaft at the lower part of the steering block is fixedly connected with a bevel gear, the output end of the stepping motor is fixedly connected with the bevel gear, and the steering block is driven to rotate in a bevel gear transmission mode; the stepping motor is arranged on a stepping motor mounting frame fixedly connected in the square groove of the outer cylindrical surface of the knitting chassis.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210251290.1A CN114775161B (en) | 2022-03-15 | 2022-03-15 | Continuous cross-linking braiding method and equipment under full-load spindle |
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| CN202210251290.1A CN114775161B (en) | 2022-03-15 | 2022-03-15 | Continuous cross-linking braiding method and equipment under full-load spindle |
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| CN114775161B true CN114775161B (en) | 2023-12-29 |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108085865A (en) * | 2018-01-02 | 2018-05-29 | 浙江理工大学 | A kind of interaction becomes rail angle guide wheel stereo weaving machine |
| CN112831909A (en) * | 2021-03-10 | 2021-05-25 | 徐州恒辉编织机械有限公司 | Multilayer three-dimensional radial braiding machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7908956B2 (en) * | 2008-01-08 | 2011-03-22 | Triaxial Structures, Inc. | Machine for alternating tubular and flat braid sections |
| US11447901B2 (en) * | 2013-04-12 | 2022-09-20 | EverestMedica LLC | Method of making a surgical braid |
| US9920462B2 (en) * | 2015-08-07 | 2018-03-20 | Nike, Inc. | Braiding machine with multiple rings of spools |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108085865A (en) * | 2018-01-02 | 2018-05-29 | 浙江理工大学 | A kind of interaction becomes rail angle guide wheel stereo weaving machine |
| CN112831909A (en) * | 2021-03-10 | 2021-05-25 | 徐州恒辉编织机械有限公司 | Multilayer three-dimensional radial braiding machine |
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