CN110923940B - Large-diameter multilayer composite pipe weaving forming equipment and method - Google Patents
Large-diameter multilayer composite pipe weaving forming equipment and method Download PDFInfo
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- CN110923940B CN110923940B CN201911134161.9A CN201911134161A CN110923940B CN 110923940 B CN110923940 B CN 110923940B CN 201911134161 A CN201911134161 A CN 201911134161A CN 110923940 B CN110923940 B CN 110923940B
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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
Abstract
The invention relates to a large-diameter multilayer composite pipe weaving and forming device and a method, wherein the large-diameter multilayer composite pipe is woven and formed on the large-diameter multilayer composite pipe weaving and forming device to form a large-diameter multilayer composite pipe; the large-diameter multilayer composite pipe weaving and forming equipment consists of a core mould driving unit, a composite pipe core mould, a plurality of weaving units, a plurality of glue injection units, a pultrusion glue injection heating unit, a heating, drying and forming unit, a formed product traction unit, a clamping unit, a cutting unit and a discharging and tilting unit; the core mould driving unit drives the composite pipe core mould to sequentially pass through the plurality of weaving units and the glue injection unit, composite materials are woven on the outer surface of the composite pipe core mould, the composite pipe core mould is preliminarily formed at the pultrusion glue injection heating unit and is completely formed at the heating and drying forming unit, when the specified length of the composite pipe is reached, the clamping unit clamps the composite pipe, the composite pipe is cut off, and the discharging tilting unit tilts the cut composite pipe to the discharging port to complete the production of the composite pipe.
Description
Technical Field
The invention belongs to the technical field of high-end textile equipment, and relates to large-diameter multilayer composite pipe braiding and forming equipment and a method, in particular to large-diameter multilayer composite pipe braiding and forming equipment and a method consisting of long spindles.
Background
The application of the composite material pipe is wider and wider, the market demand is continuously increased, but the preparation means of the large-diameter multilayer composite material pipe is limited. At present, although a composite material pipe can be prepared by three methods of layering, winding and weaving, the following defects exist: although the large-diameter multilayer composite pipe can be prepared by layering and winding, the composite pipe prepared by the two methods has poor interlayer performance and is easy to generate interlayer separation, so that parts are invalid; secondly, the mechanical property of the composite material pipe prepared by the weaving method is superior, but the large-diameter composite material pipe with the diameter of more than 1 meter cannot be prepared at present for the following reasons; as the diameter of the composite tube increases, the number of spindles required increases, which tends to cause the braided chassis to increase dramatically. On one hand, the cost is greatly increased, the manufacturing difficulty is improved, on the other hand, interaction points among yarns are increased due to the large chassis, interaction force among the yarns is increased, fiber friction and abrasion are aggravated directly, and unfavorable conditions such as fluffing, yarn breakage, knotting and the like occur, so that the problems are fatal to a composite material pipe preform body formed by weaving fragile high-performance fibers.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the prior art apparatus and method are not capable of braiding large diameter multi-layer composite tubes.
In order to solve the technical problem, the technical scheme of the invention is to provide a large-diameter multilayer composite pipe weaving and forming device, which is characterized by comprising a core mold driving unit, a composite pipe core mold, a plurality of weaving units, a plurality of glue injection units, a pultrusion glue injection heating unit, a heating, drying and forming unit, a formed product traction unit, a clamping unit, a cutting unit and a discharging and tilting unit, wherein:
the composite pipe core mold, the weaving units, the pultrusion glue injection heating unit and the heating, drying and molding unit are coaxially arranged, and the core mold driving unit is used for driving the composite pipe core mold to sequentially pass through the weaving units and the glue injection units along the axial direction;
the number of the weaving units is equal to the number of layers of the pre-woven composite pipe, a glue injection unit is arranged between every two weaving units, the weaving units are used for weaving the composite material on the outer surface of the composite pipe core mold to form a preformed body, the glue injection unit is used for providing liquid glue for the preformed body, and the preformed body and the liquid glue are mixed to form a prototype product;
the rudiment product is preliminarily molded at the pultrusion glue injection heating unit and then is thoroughly molded at the heating and drying molding unit to form a molded product;
the molded product traction unit is used for drawing the molded product to the discharging direction;
the clamping unit is used for clamping the formed product which is drawn by the formed product drawing unit and reaches a preset length;
the cutting unit is used for cutting off the molded product clamped by the clamping unit;
the discharging tilting unit is used for finishing the discharging of the formed product cut by the cutting unit
Preferably, each of the knitting units has the same structure, and includes a frame and a head unit, the head unit is vertically disposed on the frame, and the frame is fixed in position, wherein:
the machine head part comprises a vertically arranged weaving chassis, and a weaving ring component which is coaxially arranged with the weaving chassis is fixed on the weaving chassis; m multiplied by N groove-shaped grooves distributed along the circumferential direction and the axial direction are processed on the inner annular surface of the weaving chassis, the N groove-shaped grooves distributed along the axial direction are defined as one row, then the M row of groove-shaped grooves are distributed along the circumferential direction, the M groove-shaped grooves distributed along the circumferential direction at the same axial position are defined as one row, and then the N rows of groove-shaped grooves are formed in total; an insert block is respectively arranged between two axially adjacent groove-shaped grooves and between two circumferentially adjacent groove-shaped grooves, a crossed spindle track and a non-crossed spindle track are processed on the surface of the insert block, and the two adjacent groove-shaped grooves form cross through the crossed spindle track or are not intersected through the non-crossed spindle track according to the process requirement; the groove-shaped groove, the crossed spindle rail and the non-crossed spindle rail form a spindle rail together; m rows of N drive plates are arranged on the inner annular surface of the weaving chassis along the circumferential direction and the axial direction, each drive plate corresponds to one groove-shaped groove, and the drive plates are driven by a drive plate driving mechanism to rotate around the axis of the drive plate driving mechanism, so that the long spindle components are driven to move along the track path of the spindle; the long spindle subassembly is matched with the drive plate according to a required configuration mode; one end of each long spindle assembly is a mounting end, the mounting end is mounted in the notch of the driving plate and the spindle rail, the other end of each long spindle assembly is provided with yarn outlets, and the yarn outlets of all the long spindle assemblies are converged and approach to the outside of the braiding ring assembly infinitely.
Preferably, the drive plate driving mechanism comprises a plurality of drive plate driving components, all the drive plate driving components are divided into an upper row and a lower row and fixed on the outer side annular surface of the woven chassis, each drive plate driving component is used for driving a plurality of drive plates which are arranged in the axial direction and the circumferential direction, each drive plate driving component comprises a drive plate driving motor reducer, the drive plate driving motor reducer is installed on the outer side annular surface of the woven chassis of the back plate, a drive plate driving shaft is connected with the drive plate driving motor reducer through a main shaft coupler, and one drive plate is arranged on the drive plate driving shaft; the driving plate driving shaft transmits power to a driving plate driven shaft I which is adjacent to the driving plate driving shaft in the circumferential direction through a side circumferential gear, and each driving plate driven shaft I is provided with one driving plate; the driving plate driving shaft transmits power to a driving plate driven shaft II which is adjacent to the driving plate driving shaft in the axial direction through an axial serial gear, and each driving plate driven shaft II is provided with one driving plate.
Preferably, the side circumferential gears are arranged on a driving shaft of a driving plate and a driven shaft of the driving plate which are arranged at the top row and the bottom row and are meshed with each other to form a 2-row closed gear transmission chain; the axial series gears located at the same circumferential position are in a row, each row of axial series gears are meshed with each other, and all the axial series gears form a plurality of rows of open gear transmission chains.
Preferably, the long spindle subassembly comprises a spindle base, the lower end of the spindle base is provided with a boat-shaped block, and the boat-shaped block is placed in the spindle rail; the inner surface of the ball bearing is fixedly connected with the spindle rotating shaft, and the outer surface of the ball bearing is fixedly connected with the spindle base, so that the spindle rotating shaft can rotate around the ball bearing; the upper end of the spindle base is flexibly connected with the lower end of the spindle rotating shaft so as to limit the spindle rotating shaft to rotate randomly, and the outer surface of the upper end of the spindle rotating shaft is fixedly connected with the inner surface of the lower end of the taper sleeve; a fixed ring and a sliding positioning ring which are positioned above the spindle rotating shaft are arranged in the taper sleeve, the part of the taper sleeve, which is positioned between the fixed ring and the sliding positioning ring, is a spring cavity, a spring is arranged in the spring cavity, the sliding positioning ring slides along the taper sleeve under the action of the spring force, and a blocking piece for limiting the sliding positioning ring is arranged above the sliding positioning ring; a spindle base is arranged in the taper sleeve, a blocking piece is embedded into the lower end of the spindle base and is in contact with a sliding positioning ring, the spindle base is limited by the sliding positioning ring, the spindle base is prevented from sliding out of the taper sleeve, and meanwhile, the sliding positioning ring supports against the spindle base under the action of a spring to prevent the spindle base from rotating randomly; the upper end of the spindle base is flexibly connected with the rotating block with the torsion spring through the torsion spring; the outer surface of the spindle rotating shaft is fixedly connected with a cylindrical elastic sheet and penetrates through the spindle, the rotating block with the torsion spring and the spindle base at one time, the spindle rotating shaft is connected with the rotating block with the torsion spring through a bearing, and the spindle rotating shaft is connected with the spindle base through a bearing and a one-way clutch; the rotating sleeve is fixedly connected on the outer surface of the spindle base and rotates together with the spindle base; the lower end of the screw is fixedly connected with the spindle rotating shaft, the middle end of the screw is fixedly connected with the plunger, and the upper end of the screw is connected with the stop block through a pin; the stop block is a rectangular block and can rotate around the pin, and the long edge and the short edge of the stop block are respectively used for taking and placing spindles; the outside of the taper sleeve is provided with a yarn guide assembly, the upper end of the taper sleeve is provided with a yarn outlet, a yarn guide frame with a porcelain eye is arranged in the taper sleeve and close to the yarn outlet, yarns on a spindle are led out of the taper sleeve after being wound by a rotating sleeve and then are led into the taper sleeve through the yarn guide assembly, and finally the yarns are guided to the yarn outlet through the yarn guide frame with the porcelain eye.
Preferably, the upper end of the spindle base is flexibly connected with the stepped surface of the spindle rotating shaft through a corrugated rubber ring.
Preferably, the yarn guiding assembly comprises the primary yarn guiding roller and the secondary yarn guiding roller, and the yarn is guided into the taper sleeve through the primary yarn guiding roller and the secondary yarn guiding roller in sequence.
Preferably, a lantern ring capable of moving up and down along the outer ring surface of the taper sleeve is arranged outside the taper sleeve, the lantern ring is moved to the middle position of the spindle to prevent the spindle from moving circumferentially during weaving, and when yarn needs to be changed, the lantern ring is moved out to remove the spindle.
The invention also provides a method for weaving and forming the large-diameter multilayer composite pipe, which is characterized in that the equipment comprises the following steps:
(1) the core mold driving unit drives the composite pipe core mold to move along the production line direction and sequentially passes through the plurality of weaving units and the glue injection unit;
(2) weaving units to weave the composite material on the outer surface of the composite pipe core mold, and forming a prototype product formed by mixing a multilayer composite material preformed body formed by weaving a plurality of layers of composite materials and liquid glue;
(3) primarily molding the embryonic product at a pultrusion glue injection heating unit, and completely molding the embryonic product at a heating and drying molding unit to form a composite pipe;
(4) the molded product traction unit continuously pulls the molded composite pipe to move towards the downstream of the production line;
(5) when the length of the composite pipe reaches the specified length, the molded product traction unit pauses, the clamping unit clamps the composite pipe, and the cutting unit cuts off the composite pipe;
(6) and electrifying the discharge tilting unit, tilting the cut composite pipe to a discharge port, and finishing the production of the composite pipe.
The invention has the following beneficial effects:
(1) in the process of yarn interlacing movement, most yarn interlacing points are protected by taper sleeves of long spindles, so that the yarns are not in direct contact, the friction and the abrasion are small, fluffing, breaking, knotting and the like are not easy to occur in the weaving process, the quality of a woven product is high, and the woven product can be well suitable for weaving fragile high-performance fibers;
(2) the occupied area is small, the diameter range of the composite pipe which can be woven is large, and the diameter is improved by about 8 times compared with that of the common weaving method.
Drawings
FIG. 1 is a front view of the rig;
FIG. 2 is a general isometric view of a braiding unit;
FIG. 3 is an isometric view of a head part of the weaving unit;
FIG. 4 is a partial view of the main drive of the weaving unit nose section;
FIG. 5 is a partial view of a braiding unit spindle track;
FIG. 6 is a partial view of a braided unit braided ring assembly;
FIG. 7 is a top view of a braiding unit head assembly;
FIG. 8 is a structural section view of a long conical spindle of a braiding unit;
FIG. 9 is an explanatory view of the arrangement tracks of the spindles of the braiding unit;
FIG. 10 is a schematic view of a center point connection of a dial of a braiding unit;
wherein, 1-core mould driving unit, 2-composite pipe core mould, 3-braiding unit, 4-glue-injection unit, 5-pultrusion glue-injection heating unit, 6-heating drying forming unit, 7-formed product traction unit, 8-clamping unit, 9-cutting unit, 10-discharging tilting unit, 11-head component, 12-frame, 13-braiding chassis, 14-spindle dismounting mounting plate, 15-back plate, 16-dial driving motor reducer, 17-main shaft coupler, 18-large backstop circular nut, 19-side circumferential gear, 20-axial series gear, 21-dial driving shaft, 22-dial driven shaft, 23-dial bearing, 24-long spindle subassembly, 25-dial, 26-circlip bearing, 27-mandrel, 28-slug, 29-braided ring assembly, 30-boat block, 31-spindle base, 32-ball bearing, 33-corrugated rubber ring, 34-spindle rotating shaft, 35-fixed ring, 36-spring cavity, 37-sliding positioning ring, 38-lower bearing, 39-spindle base, 40-torsion spring rotating block, 41-one-way clutch, 42-spindle rotating shaft, 43-rotating sleeve, 44-primary yarn guide roller, 45-ring, 46-spindle, 47-screw, 48-plunger, 49-stopper, 50-pin, 51-secondary yarn guide roller, 52-porcelain eye guide holder, 53-cone sleeve.
Detailed Description
The invention will be further illustrated with reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Further, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teaching of the present invention, and such equivalents may fall within the scope of the present invention as defined in the appended claims.
As shown in the attached drawings, the large-diameter multilayer composite pipe weaving and forming equipment provided by the invention comprises a core mold driving unit 1, a composite pipe core mold 2, 3 weaving units 3, 2 glue injection units 4, a pultrusion glue injection heating unit 5, a heating, drying and forming unit 6, a formed product traction unit 7, a clamping unit 8, a cutting unit 9 and a discharging and tilting unit 10.
The weaving unit 3 includes a head part 11 and a frame 12. The frame 12 is installed on a horizontal ground, and the head unit 11 is vertically disposed on the frame 12 and is fixedly coupled to the frame 12.
The nose part 11 includes a nose fixing assembly and a main transmission part, wherein:
the handpiece fixed assembly comprises a braided chassis 13, a spindle dismounting mounting plate 14, a back plate 15, an insert 28 and a braided ring assembly 29. M multiplied by N groove-shaped grooves distributed along the circumferential direction and the axial direction are processed on the inner ring surface of the weaving chassis 13, the N groove-shaped grooves distributed along the axial direction are defined as one row, then the M row groove-shaped grooves are distributed along the circumferential direction, the M groove-shaped grooves distributed along the circumferential direction at the same axial position are defined as one row, and then the N rows of groove-shaped grooves are formed in total. Spindle removal mounting plate 14 is secured to the edge of the channel groove. An insert block 28 is respectively arranged between two axially adjacent groove-shaped grooves and between two circumferentially adjacent groove-shaped grooves, a crossed spindle track and a non-crossed spindle track are processed on the surface of the insert block 28, and the two adjacent groove-shaped grooves are crossed through the crossed spindle track or are not crossed through the non-crossed spindle track according to the process requirements. The groove-shaped groove, the crossed spindle rail and the non-crossed spindle rail jointly form a spindle rail. The outer side of the weaving chassis 13 is annularly provided with a concave cavity, and the back plate 15 is fixed on the outer annular surface and can seal the concave cavity. The braided ring assembly 29 is fixed to the braided chassis 13 with its centre line of symmetry coinciding with the centre line of the braided chassis 13.
The main transmission part comprises a dial driving mechanism, a long spindle subassembly 24 and a dial 25. M rows of N-row drive plates 25 are arranged on the inner annular surface of the weaving chassis 7 along the circumferential direction and the axial direction, each drive plate 25 corresponds to one groove-shaped groove, and the drive plates 25 are driven by a drive plate driving mechanism to rotate around the axis of the drive plates, so that the long spindle assemblies 24 are driven to move along the track path of the spindles.
The dial drive mechanism includes a plurality of dial drive assemblies, all of which are divided into upper and lower rows and fixed to the outer annular surface of the braided chassis, each of which is used to drive a plurality of dials 19 arranged in the axial and circumferential directions. Each dial drive assembly includes a dial drive motor reducer 16, a spindle coupling 17, a large back-off circular nut 18, a side peripheral gear 19, an axial tandem gear 20, a dial drive shaft 21, a dial driven shaft 22, a dial bearing 23, a bearing with a retaining ring 26, and a spindle 27.
The drive plate driving motor speed reducer 16 is arranged on the outer ring surface of the back plate 15, is fixedly connected with a drive plate driving shaft 21 through a main shaft coupling 17, and is circumferentially and uniformly distributed in two rows. The dial drive shaft 21 and the dial driven shaft 22 are mounted in and rotatable around a radial hole formed in the knitted chassis 13 via a dial bearing 23. The dial 25 is mounted on the near inner circumferential end of the dial drive shaft 21 and the dial driven shaft 22. The spindle 27 is concentrically mounted in the drive plate drive shaft 21 and the drive plate driven shaft 22 through a bearing 26 with a retainer ring, and can rotate around the central line of the spindle 27. The side peripheral gears 19 are mounted on the top row and bottom row drive plate drive shafts 21 and drive plate driven shafts 22, and are meshed with each other to form a 2-row closed gear transmission chain. The axial tandem gears 20 are arranged on all the drive plate driving shafts 21 and the drive plate driven shafts 22, and are arranged on the inner sides of the side circumferential gears 19 and close to the central line side of the weaving chassis 13, and each row of axial tandem gears 20 are mutually meshed to form a multi-row open gear transmission chain. Each of the side peripheral gear 19 and the axial tandem gear 20 is mounted with a large retainer circular nut 18 on the axially outer side to prevent axial play thereof. The long spindle subassembly 24 is arranged in a groove of the drive plate 25 and can move along a spindle track on the braiding chassis 13 under the pushing of the drive plate 25. The power transmission sequence of the main transmission is as follows: the drive plate driving motor reducer 16-a main shaft coupler 17-a drive plate driving shaft 21 (-a side circumferential gear 19-an axial series gear 20-a drive plate driven shaft 22) -a drive plate 25-a long spindle subassembly 24.
The long spindle subassembly 24 comprises a boat-shaped block 30, a spindle base 31, a ball bearing 32, a corrugated rubber ring 33, a spindle rotating shaft 34, a fixed ring 35, a spring cavity 36, a sliding positioning ring 37, a lower bearing 38, a spindle base 39, a rotating block 40 with a torsion spring, a one-way clutch 41, a spindle rotating shaft 42, a rotating sleeve 43, a primary yarn guide roller 44, a collar 45, a spindle 46, a screw 47, a plunger 48, a stop 49, a pin 50, a secondary yarn guide roller 51, a yarn guide frame 52 with a porcelain eye and a cone sleeve 53.
The lower end of the spindle base 31 is provided with two through holes, two ship-shaped blocks 30 are respectively arranged in the two through holes, and the ship-shaped blocks 30 are placed in the spindle track of the weaving chassis 13. The inner surface of the ball bearing 32 is fixedly connected with the spindle rotating shaft 34, and the outer surface is fixedly connected with the spindle base 31, so that the spindle rotating shaft 34 can rotate around itself. The upper end of the spindle base 31 is flexibly connected with the stepped surface of the spindle rotating shaft 34 through the corrugated rubber ring 33, and the spindle rotating shaft 34 can be limited to rotate freely. The inner surface of the bottom of the taper sleeve 53 is fixedly connected with the outer surface of the spindle rotating shaft 34. The fixed ring 35 is fixedly connected with the taper sleeve 53, a spring cavity 36 is formed between the sliding positioning ring 37 and the fixed ring 35, and a spring can be installed, so that the sliding positioning ring 37 slides along the taper sleeve 53 under the action of the spring force. The upper end of the sliding positioning ring 37 is limited by a baffle embedded in the taper sleeve 53. The upper end of the sliding positioning ring 37 is provided with a circular boss. The spindle base 39 can be inserted into the taper sleeve 53 along the stop piece embedded in the taper sleeve 53, the lower end of the spindle base is contacted with the sliding positioning ring 37, and the spindle base is limited by the round boss at the upper end of the sliding positioning ring 37 to prevent the spindle base from sliding out of the taper sleeve 53. The sliding retaining ring 37 is urged against the spindle base 39 by the lower spring to prevent it from rotating freely. The upper end of the spindle base 39 is flexibly connected with a rotating block 40 with a torsion spring through the torsion spring. The outer surface of the spindle rotating shaft 42 is fixedly connected with a cylindrical elastic sheet which passes through the spindle 46, the rotating block 40 with the torsion spring and the spindle base 39 at one time. The spindle rotating shaft 42 is connected with the rotating block 40 with the torsion spring through a bearing, and the spindle rotating shaft 42 is connected with the spindle base 39 through a bearing and a one-way clutch 41. A rotating sleeve 43 is fixedly attached to the outer surface of the spindle base 39 and is rotatable with the spindle base 39. The primary yarn guide roller 44 and the secondary yarn guide roller 51 are fixedly connected on the outer surface of the taper sleeve 53, and the yarn guide frame 52 with porcelain eyes is fixedly connected in the taper sleeve 53. The lower end of the screw 47 is fixedly connected with the spindle rotating shaft 42, the middle end is fixedly connected with the plunger 48, and the upper end is connected with the stop block 49 through the pin 50. The stop 49 is a rectangular block that pivots about a pin 50, with the long and short sides used separately for spindle 46 access purposes. The loop 45 can move up and down along the outer circumferential surface of the taper sleeve 53, and when weaving, moving the loop 45 to the middle position of the spindle 46 can block the spindle 46 from moving circumferentially. When a yarn change is required, the removable spindle 46 is removed from the collar 45. Yarn path: spindle 46-rotating sleeve 43-primary yarn guide roller 44-secondary yarn guide roller 51-eyelet with porcelain eye yarn guide 52.
The method for knitting and forming the large-diameter multilayer composite pipe is used for knitting and forming the large-diameter multilayer composite pipe on the large-diameter multilayer composite pipe knitting and forming equipment. The following describes how to weave and form the large-diameter composite pipe by using the weaving method of the invention by combining with specific cases.
The method for weaving and forming the 3-layer composite pipe with the diameter of 2000mm by adopting the weaving method comprises the following steps:
(a) the core mold driving unit 1 drives the composite pipe core mold 2 to move along the production line direction and sequentially passes through the 3 weaving units 3 and the 2 glue injection units 4;
(b) weaving units 3 start weaving, and each weaving unit 3 weaves the composite material on the outer surface of the composite pipe core mold 2 to form a prototype product formed by mixing a multilayer composite material preformed body formed by weaving 3 layers of composite materials and liquid glue;
(c) the rudiment product is preliminarily molded at the pultrusion glue injection heating unit 5 and is thoroughly molded at the heating and drying molding unit 6;
(d) the molded product traction unit 7 continuously pulls the molded composite pipe to move towards the downstream of the production line;
(e) when the length of the composite pipe reaches the specified length, the molded product traction unit 7 is stopped temporarily, the clamping unit 8 clamps the composite pipe, and the cutting unit 9 is electrified to cut off the composite pipe;
(f) and electrifying the discharging tilting unit 10, tilting the cut composite pipe to a discharging port, and finishing the production of the composite pipe.
The knitting process of the knitting unit 3 in the above step (b) is specifically described as follows:
the knitting chassis 13 of each knitting unit 3 is composed of 800 dial plates 25, 1500 insert blocks 28 and 1600 spindle assemblies 24 in total, wherein the dial plates 25 are named and numbered as G for explaining the motion rule of the spindle assemblies 24ijThe indices i, j denote the row and column, respectively, in which the dial 25 is located; these inserts 28 are designated by the name piijklThe insert 28 is denoted by the number GijDial 25 and number GijThe block 28 at the intersection of the tracks where the dial 25 is located, defines: II typeijklThe insert 28 with the number being 1 represents a cross track fixing mode, which means that the long spindle assembly 24 can move from the current drive plate 25 to the next drive plate 25; definition piijklThe insert 28 with the number being 0 represents a non-crossed track fixing mode, which means that the long spindle assembly 24 cannot move from the current drive plate 25 to the next drive plate 25;
the arrangement of the knitting base 13 of each knitting unit 3 and the motion law of the spindle assemblies 24 are as follows:
(1) the insert 28 is fixedly installed in the hole of the weaving chassis 13 according to the position direction shown in fig. 8, and the following formula can be specifically referred:
(2) the long spindle assembly 24 is arranged along n ijkl1, namely the direction of the insert block 28 in a crossed track fixing mode, and the insert block is installed according to the sequence of a single-layer common weaving process, namely the traditional spindle arrangement mode of 1 occupying 1 space;
(3) the main drive motor is powered on, the drive plate 25 drives the long spindle assembly 24 to move along IIijkl1 (a folded approximate serpentine).
Claims (8)
1. The utility model provides a shaping equipment is woven to compound pipe of major diameter multilayer, its characterized in that includes mandrel drive unit, compound tub mandrel, a plurality of unit of weaving, a plurality of injecting glue unit, pultrusion injecting glue heating unit, heating drying shaping unit, shaping product traction unit, centre gripping unit, cuts off unit and ejection of compact heeling unit, wherein:
the composite pipe core mold, the weaving units, the pultrusion glue injection heating unit and the heating, drying and molding unit are coaxially arranged, and the core mold driving unit is used for driving the composite pipe core mold to sequentially pass through the weaving units and the glue injection units along the axial direction;
the number of the weaving units is equal to the number of layers of the pre-woven composite pipe, a glue injection unit is arranged between every two weaving units, the weaving units are used for weaving the composite material on the outer surface of the composite pipe core mold to form a preformed body, the glue injection unit is used for providing liquid glue for the preformed body, and the preformed body and the liquid glue are mixed to form a prototype product;
the rudiment product is preliminarily molded at the pultrusion glue injection heating unit and then is thoroughly molded at the heating and drying molding unit to form a molded product;
the molded product traction unit is used for drawing the molded product to the discharging direction;
the clamping unit is used for clamping the formed product which is drawn by the formed product drawing unit and reaches a preset length;
the cutting unit is used for cutting off the molded product clamped by the clamping unit;
the discharging tilting unit is used for discharging the molded product cut by the cutting unit;
each weaving unit has the same structure and comprises a frame and a head part, the head part is vertically arranged on the frame, and the position of the frame is fixed, wherein:
the machine head part comprises a vertically arranged weaving chassis, and a weaving ring component which is coaxially arranged with the weaving chassis is fixed on the weaving chassis; m multiplied by N groove-shaped grooves distributed along the circumferential direction and the axial direction are processed on the inner annular surface of the weaving chassis, the N groove-shaped grooves distributed along the axial direction are defined as one row, then the M row of groove-shaped grooves are distributed along the circumferential direction, the M groove-shaped grooves distributed along the circumferential direction at the same axial position are defined as one row, and then the N rows of groove-shaped grooves are formed in total; an insert block is respectively arranged between two axially adjacent groove-shaped grooves and between two circumferentially adjacent groove-shaped grooves, a crossed spindle track and a non-crossed spindle track are processed on the surface of the insert block, and the two adjacent groove-shaped grooves form cross through the crossed spindle track or are not intersected through the non-crossed spindle track according to the process requirement; the groove-shaped groove, the crossed spindle rail and the non-crossed spindle rail form a spindle rail together; m rows of N drive plates are arranged on the inner annular surface of the weaving chassis along the circumferential direction and the axial direction, each drive plate corresponds to one groove-shaped groove, and the drive plates are driven by a drive plate driving mechanism to rotate around the axis of the drive plate driving mechanism, so that the long spindle components are driven to move along the track path of the spindle; the long spindle subassembly is matched with the drive plate according to a required configuration mode; one end of each long spindle assembly is a mounting end, the mounting end is mounted in the notch of the driving plate and the spindle rail, the other end of each long spindle assembly is provided with yarn outlets, and the yarn outlets of all the long spindle assemblies are converged and approach to the outside of the braiding ring assembly infinitely.
2. The large-diameter multilayer composite tube braiding apparatus of claim 1, wherein the dial drive mechanism comprises a plurality of dial drive assemblies, all of which are divided into two upper and lower rows and fixed to the outer annular surface of the braiding chassis, each dial drive assembly for driving a plurality of the dials arranged in the axial and circumferential directions, each dial drive assembly comprising a dial drive motor reducer mounted on the outer annular surface of the braiding chassis of the backing plate, a dial drive shaft coupled to the dial drive motor reducer through a spindle coupling, one of the dials being provided on the dial drive shaft; the driving plate driving shaft transmits power to a driving plate driven shaft I which is adjacent to the driving plate driving shaft in the circumferential direction through a side circumferential gear, and each driving plate driven shaft I is provided with one driving plate; the driving plate driving shaft transmits power to a driving plate driven shaft II which is adjacent to the driving plate driving shaft in the axial direction through an axial serial gear, and each driving plate driven shaft II is provided with one driving plate.
3. The large-diameter multilayer composite pipe braiding apparatus according to claim 2, wherein said side peripheral gears are mounted on the top one row and the bottom one row of the driving and driven shafts of the driving and driven plates, and mesh with each other to form a 2-row closed gear train; the axial series gears located at the same circumferential position are in a row, each row of axial series gears are meshed with each other, and all the axial series gears form a plurality of rows of open gear transmission chains.
4. The large-diameter multilayer composite pipe braiding formation equipment of claim 1, wherein the long spindle assembly comprises a spindle base, the lower end of the spindle base is provided with a boat-shaped block, and the boat-shaped block is placed in the spindle track; the inner surface of the ball bearing is fixedly connected with the spindle rotating shaft, and the outer surface of the ball bearing is fixedly connected with the spindle base, so that the spindle rotating shaft can rotate around the ball bearing; the upper end of the spindle base is flexibly connected with the lower end of the spindle rotating shaft so as to limit the spindle rotating shaft to rotate randomly, and the outer surface of the upper end of the spindle rotating shaft is fixedly connected with the inner surface of the lower end of the taper sleeve; a fixed ring and a sliding positioning ring which are positioned above the spindle rotating shaft are arranged in the taper sleeve, the part of the taper sleeve, which is positioned between the fixed ring and the sliding positioning ring, is a spring cavity, a spring is arranged in the spring cavity, the sliding positioning ring slides along the taper sleeve under the action of the spring force, and a blocking piece for limiting the sliding positioning ring is arranged above the sliding positioning ring; a spindle base is arranged in the taper sleeve, a blocking piece is embedded into the lower end of the spindle base and is in contact with a sliding positioning ring, the spindle base is limited by the sliding positioning ring, the spindle base is prevented from sliding out of the taper sleeve, and meanwhile, the sliding positioning ring supports against the spindle base under the action of a spring to prevent the spindle base from rotating randomly; the upper end of the spindle base is flexibly connected with the rotating block with the torsion spring through the torsion spring; the outer surface of the spindle rotating shaft is fixedly connected with a cylindrical elastic sheet and penetrates through the spindle, the rotating block with the torsion spring and the spindle base at one time, the spindle rotating shaft is connected with the rotating block with the torsion spring through a bearing, and the spindle rotating shaft is connected with the spindle base through a bearing and a one-way clutch; the rotating sleeve is fixedly connected on the outer surface of the spindle base and rotates together with the spindle base; the lower end of the screw is fixedly connected with the spindle rotating shaft, the middle end of the screw is fixedly connected with the plunger, and the upper end of the screw is connected with the stop block through a pin; the stop block is a rectangular block and can rotate around the pin, and the long edge and the short edge of the stop block are respectively used for taking and placing spindles; the outside of the taper sleeve is provided with a yarn guide assembly, the upper end of the taper sleeve is provided with a yarn outlet, a yarn guide frame with a porcelain eye is arranged in the taper sleeve and close to the yarn outlet, yarns on a spindle are led out of the taper sleeve after being wound by a rotating sleeve and then are led into the taper sleeve through the yarn guide assembly, and finally the yarns are guided to the yarn outlet through the yarn guide frame with the porcelain eye.
5. The large-diameter multilayer composite pipe braiding molding equipment according to claim 4, wherein the upper end of the spindle base is flexibly connected with the stepped surface of the spindle rotating shaft through a corrugated rubber ring.
6. The large-diameter multilayer composite pipe weaving and forming equipment of claim 4, characterized in that the yarn guiding assembly comprises a primary yarn guiding roller and a secondary yarn guiding roller, and the yarn is guided into the taper sleeve through the primary yarn guiding roller and the secondary yarn guiding roller in sequence.
7. The large-diameter multilayer composite pipe weaving molding equipment of claim 4, characterized in that a collar capable of moving up and down along the outer ring surface of the taper sleeve is arranged outside the taper sleeve, the collar is moved to the middle position of the spindle to block the spindle from moving circumferentially during weaving, and the spindle is removed when the yarn needs to be changed.
8. A method for braiding a large-diameter multilayer composite pipe, wherein the method comprises the following steps of:
(1) the core mold driving unit drives the composite pipe core mold to move along the production line direction and sequentially passes through the plurality of weaving units and the glue injection unit;
(2) weaving units to weave the composite material on the outer surface of the composite pipe core mold, and forming a prototype product formed by mixing a multilayer composite material preformed body formed by weaving a plurality of layers of composite materials and liquid glue;
(3) primarily molding the embryonic product at a pultrusion glue injection heating unit, and completely molding the embryonic product at a heating and drying molding unit to form a composite pipe;
(4) the molded product traction unit continuously pulls the molded composite pipe to move towards the downstream of the production line;
(5) when the length of the composite pipe reaches the specified length, the molded product traction unit pauses, the clamping unit clamps the composite pipe, and the cutting unit cuts off the composite pipe;
(6) and electrifying the discharge tilting unit, tilting the cut composite pipe to a discharge port, and finishing the production of the composite pipe.
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| CN114836896B (en) * | 2022-04-19 | 2023-03-28 | 南京航空航天大学 | Core mold leading-out method and device for three-dimensional weaving of shell preform with special-shaped section |
| CN116572561B (en) * | 2023-07-14 | 2023-09-26 | 河南东海复合材料有限公司 | Carbon fiber pultrusion braided tube forming equipment |
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| CN100581794C (en) * | 2007-07-11 | 2010-01-20 | 郝跟进 | Preparation method for on-line pulling and extruding glass steel tube with multilayer annular weaving structure |
| DE102011002840A1 (en) * | 2011-01-18 | 2012-07-19 | Sgl Carbon Se | Fiber-reinforced composite component and method for producing a fiber-reinforced composite component |
| CN103557376A (en) * | 2013-11-15 | 2014-02-05 | 广东宝通玻璃钢有限公司 | Continuous large-caliber woven fiber reinforced thermoset pultrusion pipeline and production method |
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