CN116021792A - Winding forming equipment and stretch-wrap forming production line - Google Patents

Abstract

The application discloses winding former includes: the device comprises a frame, a dipping device for dipping yarns, a core die fixing device for fixing a core die and a winding device for winding the yarns on the core die, wherein the dipping device, the core die fixing device and the winding device are sequentially arranged along the length direction of the frame; the frame comprises a first frame and a second frame, the mandrel fixing device is arranged on the first frame, and the winding device is vertically arranged on the second frame; the first frame and the second frame are arranged separately. The winding former of this application is through setting up mandrel fixing device and winding device's frame separation, can prevent that the mandrel atress from arousing the fibrous layer skew phenomenon that winding device vibration led to, has effectively improved the qualification rate of product to the installation of mandrel is easy and simple to handle with dismantling, the operating efficiency is high, and the recycle rate of resin glue solution is high. The application also discloses a stretch-wrap shaping production line.

Description

Winding forming equipment and stretch-wrap forming production line

Technical Field

The application relates to the technical field of composite material forming equipment, in particular to winding forming equipment and a stretch-winding forming production line.

Background

At present, the composite material winding and forming equipment generally adopts a structure that a rotary disc is arranged on an integral frame, and fibers soaked with resin glue solution are wound on a mandrel through the rotary disc, so that the preforming of the fibers is realized. However, because the mandrel and the rotary disc of the winding forming equipment are fixed on the integral frame, the stress of the mandrel in the forming process can cause the vibration of the integral frame, so that the stability of the yarn guide component on the rotary disc is affected, the fiber layer wound on the surface of the mandrel is deviated, and the quality of products is reduced; meanwhile, as the whole length of the winding forming equipment is longer, and the length of the mandrel is longer than that of the equipment, when the mandrel penetrates into and moves out of the rotary disc, various tools are needed to assist in completing the operation, and the installation and disassembly processes are complex in operation and low in operation efficiency. In addition, in the winding forming process, the resin glue solution dropped by the fiber often slowly flows into the rotary disc infiltration tank from the reflux plate, so that the resin glue solution in the rotary disc infiltration tank is increased, and the curing agent in the resin glue solution can react with water vapor in the air to cause ageing failure of the resin glue solution due to long reflux path and long time, thereby influencing the qualification rate of products.

Disclosure of Invention

To the not enough of prior art, one of the purpose of this application is to provide a winding former, including frame, gumming device, mandrel fixing device, winding device, through setting up mandrel fixing device and winding device's frame separation, can prevent that the mandrel atress from arousing the fibrous layer skew phenomenon that winding device vibration led to, effectively improved the qualification rate of product to the installation of mandrel is easy and simple to handle with dismantling, the operating efficiency is high, and the recycle rate of resin glue solution is high.

In order to solve the technical problems, the technical scheme adopted by the application is as follows: a winding forming apparatus comprising: the device comprises a frame, a dipping device for dipping yarns, a core die fixing device for fixing a core die and a winding device for winding the yarns on the core die, wherein the dipping device, the core die fixing device and the winding device are sequentially arranged along the length direction of the frame; the frame comprises a first frame and a second frame, the mandrel fixing device is arranged on the first frame, and the winding device is vertically arranged on the second frame; the first frame and the second frame are arranged separately.

The winding forming equipment further comprises a plurality of glue solution recovery tanks and a plurality of glue solution recovery tanks, wherein the glue solution recovery tanks are horizontally arranged on the frame along the length direction of the frame and are located below the yarn movement path, recovery holes are formed in the bottoms of the glue solution recovery tanks, and the recovery holes are communicated with the glue solution recovery tanks.

The winding forming equipment further comprises a plurality of supporting devices with adjustable heights, the supporting devices are arranged below the core mold along the width direction of the frame, and the supporting devices are distributed in parallel along the length direction of the frame.

The supporting device comprises a transmission frame, a moving frame, a supporting rod, two supporting auxiliary pieces and a driving mechanism, wherein the moving frame is movably connected to the transmission frame along the vertical direction, the supporting rod is fixed to the moving frame, the two supporting auxiliary pieces are movably connected to the supporting rod, and the driving mechanism is connected with the transmission frame and used for driving the moving frame to move up and down along the vertical direction.

Wherein, winding device includes the winding motor, winding disc, yarn guide subassembly, the winding claw of establishing in the mandrel periphery along the length direction of frame in proper order, all is equipped with the yarn guide hole and corresponds each other on winding disc, yarn guide subassembly, the winding claw, and yarn wears to establish winding disc, yarn guide hole on the winding claw in proper order, and winding motor drive winding device rotates, and then makes the yarn winding at the periphery of mandrel.

The winding device further comprises a winding gum dipping groove, wherein the winding gum dipping groove is located below the winding claw, and the lower half part of the winding claw is located in the winding gum dipping groove.

The winding forming equipment comprises two winding devices, and the two winding devices are arranged in opposite directions along the length direction of the frame.

The two winding motors respectively drive the two winding devices to rotate in opposite directions, so that the two-way winding of the yarns is realized.

The winding forming equipment further comprises a felt distribution device, wherein the felt distribution device is fixedly arranged on the first frame and is positioned above the core die fixing device.

Wherein, the cloth felt device is including placing the felt frame of felt roll, drive felt frame pivoted tensioner, felt roll dipping tank, and the felt frame, felt roll dipping tank set up in first frame along the width direction of frame, and the felt roll dipping tank is located the below of felt frame, and the tensioner is connected in the one end of felt frame.

Wherein, be equipped with two frictioning boards on the felt roll impregnation groove along the width direction of first frame, leave the clearance between two frictioning boards.

The second purpose of the application is to provide a stretch-wrap forming production line for manufacturing stretch-wrap products, the stretch-wrap forming production line sequentially comprises a yarn distribution device, the winding forming equipment, a forming device, a traction device and a cutting device along the forming advancing direction of the stretch-wrap products.

The beneficial effects of this application are: the winding forming equipment of the utility model comprises a frame, a gum dipping device, a core mold fixing device and a winding device, wherein the core mold fixing device and the frame of the winding device are separated, so that the phenomenon of fiber layer deviation caused by vibration of the winding device caused by stress of the core mold can be prevented, and the product qualification rate is effectively improved.

Simultaneously, the winding former of this application sets up a plurality of height-adjustable's strutting arrangement in the below of mandrel, makes the mandrel penetrate with shift out when winding device with the dismantlement in-process, easy and simple to handle, operating efficiency are high.

In addition, the winding forming equipment is further provided with a plurality of glue solution recovery tanks and glue solution recovery boxes, resin glue solutions dropped from all parts in the preforming process are recovered independently, the problems of aging failure and fiber breakage caused by overlong exposure time of the resin glue solutions in the air are effectively avoided, and the recovery utilization rate of the resin glue solutions is improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art. Wherein:

fig. 1 is a schematic structural view of a winding forming apparatus 100 in an embodiment of the present application;

fig. 2 is a schematic structural diagram of a dipping device 120 according to an embodiment of the present application;

Fig. 3 is a schematic structural view of a core mold fixing means 130 according to an embodiment of the present invention;

FIG. 4 is a schematic view of a winding device 140 according to an embodiment of the present application;

FIG. 5 is an enlarged schematic view at A in FIG. 4;

FIG. 6 is a schematic structural view of a supporting device 150 according to an embodiment of the present application;

FIG. 7 is a schematic view of a felt arrangement 160 according to an embodiment of the present disclosure;

fig. 8 is a schematic diagram of the glue solution recycling tank 171 in an embodiment of the present application.

Detailed Description

The following description of the technical solutions in the embodiments of the present application will be made clearly and completely with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.

In one embodiment, referring to fig. 1, there is provided a winding forming apparatus 100, the winding forming apparatus 100 including: the device comprises a frame 110, a dipping device 120 for dipping yarns, a core die fixing device 130 for fixing a core die and a winding device 140 for winding yarns on the core die, wherein the dipping device 120, the core die fixing device 130 and the winding device 140 are sequentially arranged along the length direction of the frame 110; the frame 110 includes a first frame 111 and a second frame 112, the mandrel fixing device 130 is disposed on the first frame 111, and the winding device 140 is vertically disposed on the second frame 112; the first frame 111 and the second frame 112 are separately provided. Specifically, the first frame 111 and the second frame 112 are respectively concreted with the ground, so that the first frame 111 and the second frame 112 are respectively fixed on the ground, and the first frame 111 and the second frame 112 are separately arranged. Compared with the prior art, the mandrel and the rotary disc are fixed on the integral frame, and the mandrel and the rotary disc are stressed in the forming process to cause the vibration of the integral frame, so that the stability of the yarn guide assembly on the rotary disc is affected, the fiber layer wound on the surface of the mandrel is offset, and the quality of products is reduced. The winding forming equipment 100 provided by the application can avoid the phenomenon of fiber layer deflection caused by vibration of the winding device 140 due to stress of the core mold by separating the first frame 111 of the fixed core mold fixing device 130 from the second frame 112 of the fixed winding device 140, and effectively improves the product qualification rate.

Referring to fig. 2, the dipping device 120 includes a dipping frame 121, a yarn collecting plate 122, two yarn dividing plates 123, a dipping tank 124, and a dipping frame 125, wherein the yarn collecting plate 122, the dipping tank 124, and the two yarn dividing plates 123 are sequentially disposed on the dipping frame 121 along a length direction of the frame 110, and the dipping frame 125 is disposed on the dipping tank 124. Specifically, the yarn collecting plate 122 is disposed at the end of the dipping frame 121 far away from the core mold fixing device 130 along the vertical direction, and a plurality of yarn collecting holes are formed in the yarn collecting plate 122 for threading yarns and guiding the yarns into the dipping tank 124, so that the subsequent yarn dipping is facilitated. The dipping tank 124 is a V-shaped tank, that is, the dipping tank 124 is a V-shaped concave downward, and the dipping tank 124 is horizontally disposed on the dipping frame 121 and is used for accommodating resin glue. The dipping frame 125 is horizontally arranged on the dipping tank 124, the dipping frame 125 is attached to the inner bottom surface of the dipping tank 124, specifically, the dipping frame 125 comprises a plurality of dipping rollers 1251, the plurality of dipping rollers 1251 are arranged to form the dipping frame 125 with a V-shaped structure, namely, the plurality of dipping rollers 1251 are arranged on the dipping frame 125 along the length direction of the frame 110 at the bottom of the dipping tank 124, a certain gap is reserved between the plurality of dipping rollers 1251 and the bottom plate of the dipping tank 124, yarns sequentially penetrate into the gap between the plurality of dipping rollers 1251 and the bottom plate of the dipping tank 124 after penetrating out from the yarn collecting holes on the yarn collecting plate 122, and the plurality of dipping rollers 1251 can enable the yarns to be always located at the bottom of the dipping tank 124, so that the yarn dipping effect is ensured. The two yarn dividing plates 123 are arranged at the end part of the dipping machine frame 121, which is close to the core die fixing device 130, along the vertical direction, a certain included angle is formed between the two yarn dividing plates 123 oppositely, and the opening direction of the included angle faces the yarn collecting plate 122. The yarn dividing plates 123 are provided with a plurality of yarn dividing holes for yarns to pass through, the two yarn dividing plates 123 can divide the yarns passing through the gum dipping tank 124 into two parts, and meanwhile, the opening direction of an included angle between the two yarn dividing plates 123 faces the yarn collecting plate 122, so that the two glued yarns can pass out of the yarn dividing plates 123 towards two sides far away from the central line of the core die fixing device 130, the two yarns can bypass the core die fixing device 130, and the two sides of the core die are gradually close to the core die and cover the periphery of the core die to realize preforming. It should be noted that, the included angle between the two yarn dividing plates 123 may be 100 °, 120 °, 150 °, and so on, so long as two yarns can smoothly bypass the core mold fixing device 130 and smoothly transition to the next station, so as to avoid abrasion of the yarns during the movement caused by excessive bending of the yarns.

Wherein, the gum dipping tank 124 also has a constant temperature heating function, and by setting a proper temperature, the resin gum solution in the gum dipping tank 124 can always keep proper viscosity, so as to facilitate yarn infiltration, and avoid that the resin gum solution has too high viscosity when the temperature is too low, the yarn cannot be fully infiltrated, and further the product quality is affected.

Referring to fig. 1 and 3, a core mold fixing means 130 is horizontally provided on the first frame 111 for adjusting and fixing the core mold. The core mold fixing means 130 includes an adjustment frame 131 and an adjustment block group 132; the adjusting frame 131 includes an upper top plate 1311, a first side plate 1312, a lower top plate 1313 and a second side plate 1314, which are fixedly connected end to end in sequence, so that the adjusting frame 131 is in a hollow structure, and the cross section of the inner cavity of the adjusting frame 131 is rectangular. In the direction of fig. 3, the two sides of the adjusting frame 131 where no plate surface is provided are defined as the front side of the adjusting frame 131 and the rear side of the adjusting frame 131, respectively, and the front side of the adjusting frame 131 and the rear side of the adjusting frame 131 penetrate through the core mold. Two sliding grooves are provided on each of the upper top plate 1311, the first side plate 1312, the lower top plate 1313, and the second side plate 1314, and the sliding grooves are provided inside the front and rear edges of the adjustment frame 131, i.e., the edges perpendicular to the interconnection of the upper top plate 1311, the first side plate 1312, the lower top plate 1313, and the second side plate 1314.

Wherein the upper top panel 1311 is parallel to the lower top panel 1313 and the first side panel 1312 is parallel to the second side panel 1314; the adjusting block group 132 is arranged in the adjusting frame 131, the adjusting block group 132 comprises two transverse adjusting blocks 1321 and two longitudinal adjusting blocks 1322, the short sides of the two sides of the transverse adjusting blocks 1321 are respectively positioned in the sliding grooves of the upper top plate 1311 and the lower top plate 1313, and the short sides of the two sides of the longitudinal adjusting blocks 1322 are respectively positioned in the sliding grooves of the first side plate 1312 and the second side plate 1314; the adjusting block group 132 slides in the chute to adjust the position of the core mold, and positions the adjusting block group 132 to limit and fix the position of the fixable core mold. It should be noted that, since the two lateral adjustment blocks 1321 and the two longitudinal adjustment blocks 1322 need to slide in the sliding grooves, the two lateral adjustment blocks 1321 and the two longitudinal adjustment blocks 1322 cannot interfere with each other, that is, any two adjacent sliding grooves cannot intersect.

In the present embodiment, the longitudinal adjustment block 1322 is a block that can adjust the position of the core mold in the vertical direction by driving the longitudinal adjustment block 1322 in accordance with the principle that the upper top plate 1311 is below the upper and lower top plates 1313; the lateral adjustment block 1321 is a block that can adjust the position of the core mold in the horizontal direction by driving the lateral adjustment block 1321. Specifically, the core mold fixing device 130 includes a plurality of adjusting screws, a plurality of screw holes are disposed at positions of the adjusting block groups 132 projected to the adjusting frame 131, the adjusting screws penetrate through the screw holes to drive the two lateral adjusting blocks 1321 and the two longitudinal adjusting blocks 1322 to displace, so as to adjust positions of the core mold in the horizontal direction and the vertical direction, and the adjusting screws can enable the two lateral adjusting blocks 1321 and the two longitudinal adjusting blocks 1322 to be in close contact with the core mold, so as to achieve an effect of fixing the core mold. The adjusting screw is adopted to drive the adjusting block group 132 to displace, the operation is simple and convenient, the flexibility is strong, and the damage to the core mould caused by the direct contact of the adjusting screw and the core mould is avoided.

In the present embodiment, a group of adjustment block groups 132 are provided on the front side of the adjustment frame 131 and the rear side of the adjustment frame 131, and each group of adjustment block groups 132 includes two lateral adjustment blocks 1321 and two longitudinal adjustment blocks 1322, so that the stability of the core mold adjustment and the core mold fixation can be ensured. In other embodiments, only one group of adjusting block groups may be disposed in the adjusting frame, or two, three or more groups of adjusting block groups may be disposed, and each group of adjusting block groups may also include two or more transverse adjusting blocks and two or more longitudinal adjusting blocks, which may be disposed according to actual adjusting requirements, and is not particularly limited herein.

Referring to fig. 1, 4 and 5, a winding device 140 is vertically provided on the second frame 112 for winding the yarn around the outer circumference of the core mold. The winding device 140 includes a winding motor 141, a winding disc 142, a yarn guide assembly 143, and a winding claw 144 sequentially installed around the outer circumference of the core mold in the longitudinal direction of the frame 110. The winding disc 142, the yarn guiding assembly 143 and the winding claw 144 are respectively provided with yarn guiding holes which correspond to each other, yarns sequentially penetrate through the yarn guiding holes of the winding disc 142, the yarn guiding assembly 143 and the winding claw 144, and the winding motor 141 drives the winding device 140 to rotate so that the yarns are wound on the periphery of the core mold. The winding disc 142, the yarn guiding component 143 and the winding claw 144 are mutually matched, so that the tension of yarns can be increased, and the phenomenon that the yarns are loosely shifted due to insufficient tension when being wound on the periphery of a core die to influence the quality of products is avoided.

The winding motor 141 is a servo motor, and the rotation speed of the winding device 140 can be precisely controlled by adjusting the rotation speed of the servo motor, so that the yarn can be wound on the periphery of the core mold after sequentially passing through the winding disc 142, the yarn guiding component 143 and the winding claw 144, and stable winding tension and winding speed can be maintained. In other embodiments, the winding motor may use other types of motors or other driving devices, so long as the winding device can be stably driven to rotate, and the winding device is not particularly limited herein.

Specifically, the winding disc 142 has a disc-like structure, and a winding through hole 1421 for passing through the core is provided at the center thereof. The winding disc 142 is provided with a plurality of yarn packages 145 for accommodating the fiber packages. The plurality of yarn bobbins 145 are uniformly circumferentially distributed around the winding through hole 1421 at one side of the winding disc 142, and the axis of the yarn bobbins 145 is perpendicular to the disc surface of the winding disc 142. The winding disc 142 is further provided with a plurality of first yarn guiding holes 1422 corresponding to the centers of the yarn cylinders 145 one by one, and used for threading the yarns on the fiber yarn package. The yarn guiding component 143 is located the opposite side of winding disc 142, including two parallel cover establish the yarn guiding plate 1431 in mandrel periphery, yarn guiding plate 1431 is the ring shaped plate spare, is equipped with a plurality of second yarn guiding hole 14311 on the yarn guiding plate 1431, and a plurality of second yarn guiding hole 14311 is around the central circumference evenly distributed of yarn guiding plate 1431, and the coaxial setting of second yarn guiding hole 14311 one-to-one on two yarn guiding plates 1431, and with a plurality of first yarn guiding hole 1422 one-to-one. The winding claw 144 comprises a winding frame 1441, a plurality of winding rods 1442 and a plurality of winding members 1443, wherein the winding frame 1441 is in a circular ring structure and is sleeved on the periphery of the core mold; the winding rods 1442 are arranged on the outer side of the winding frame 1441 along the radial direction of the winding frame 1441, a plurality of winding rods 1442 are uniformly distributed around the central ring direction of the winding frame 1441, and at least one third yarn guiding hole 14421 is formed in the tail end of each winding rod 1442, which is far away from the winding frame 1441, and is arranged corresponding to the first yarn guiding hole 1422 and the second yarn guiding hole 14311; the winding member 1443 is an L-shaped plate, and is disposed on the outer side of the winding frame 144 away from the winding disc 142 along the length direction of the frame 110, the winding members 1443 are uniformly distributed around the center of the winding frame 1441, the short sides of the winding members 1443 are fixed on the winding frame 1441, and at least one fourth yarn guiding hole 14431 is disposed on the long side of the winding member 1443 and corresponds to the first yarn guiding hole 1422, the second yarn guiding hole 14311 and the third yarn guiding hole 14421.

It should be noted that, the winding disc 142, the yarn guiding assembly 143, and the winding claw 144 are all provided with yarn guiding holes and correspond to each other, that is, the first yarn guiding hole 1422 on the winding disc 142, the second yarn guiding hole 14311 on the yarn guiding assembly 143, the third yarn guiding hole 14421 on the winding rod 1442, and the fourth yarn guiding hole 14431 on the winding member 1443 are arranged in one-to-one correspondence, that is, the axes of each group of the first yarn guiding hole 1422, the second yarn guiding hole 14311, the third yarn guiding hole 14421, and the fourth yarn guiding hole 14431 are all located in the same axial plane of the core mold. The yarn sequentially passes through the winding disc 142, the yarn guiding component 143 and the yarn guiding holes on the winding claw 144, namely, each yarn sequentially passes through each group of corresponding first yarn guiding holes 1422, second yarn guiding holes 14311, third yarn guiding holes 14421 and fourth yarn guiding holes 14431, so that when the winding motor 141 drives the winding device 140 to rotate, the yarn can be wound on the periphery of the core mold with proper tension, and the product quality is ensured.

In this embodiment, the first yarn guiding hole 1422, the second yarn guiding hole 14311, the third yarn guiding hole 14421 and the fourth yarn guiding hole 14431 are all ceramic through holes, that is, ceramic holes are arranged on the corresponding components, on one hand, the ceramic holes have high hardness, strong wear resistance and long service life; on the other hand, the ceramic eye is usually processed by adopting precise ceramic, has smooth surface and can protect the yarn from being damaged by passing through the ceramic eye smoothly.

The winding disc 142, the yarn guide assembly 143 and the winding claw 144 are respectively provided with a mounting hole, and the winding disc 142, the yarn guide assembly 143 and the winding claw 144 are fixedly connected by penetrating fasteners in the mounting holes, so that the winding disc 142, the yarn guide assembly 143 and the winding claw 144 can synchronously rotate around the core mold. In this embodiment, the fastening member is a bolt and a screw that are mutually matched, and in other embodiments, the winding disc, the yarn guiding assembly, and the winding claw may be connected by a rod, so long as reliable connection between the winding disc, the yarn guiding assembly, and the winding claw is ensured.

Further, a plurality of routing members 146 are obliquely disposed on one side of the winding disc 142 near the yarn guiding assembly 143, and are used for guiding the yarn passing out of the first yarn guiding hole 1422 to penetrate into the second yarn guiding hole 14311, so as to avoid the yarn from directly penetrating into the second yarn guiding hole 14311 from the first yarn guiding hole 1422 to wear due to excessive bending degree, thereby breaking the yarn. The plurality of routing members 146 are circumferentially and uniformly distributed on the inner sides of the plurality of first yarn guiding holes 1422 around the winding through hole 1421, and are arranged corresponding to the first yarn guiding holes 1422 and the second yarn guiding holes 14311. Specifically, the wire-feeding member 146 includes a wire-feeding rack 1461 and a plurality of wire-feeding rods 1462, the wire-feeding rack 1461 is in a shape of "fang" and is formed by connecting two side plates and a bottom plate, the two side plates extend in the same direction in a direction away from the bottom plate on two sides of the bottom plate connected with the two side plates, one end of the wire-feeding rack 1461 is fixed on the winding disc 142, and the other end of the wire-feeding rack 1461 extends in a direction close to the second yarn guiding hole 14311 as a free end; the wire bars 1462 are cylindrical rods, and four wire bars 1462 are arranged between two side plates of the wire rack 1461 at intervals and are mutually perpendicular to the side plates. After the yarn passes through the first yarn guide hole 1422, the fixed end of the self-walking wire 146 penetrates into gaps between the four wire walking rods 1462 and the bottom plate of the wire walking frame 1461, or alternatively, the fixed ends of the self-walking wire 146 sequentially pass through the wire walking rods 1462 alternately, and then the free ends of the self-walking wire 146 pass through the second yarn guide hole 14311 after passing through, so that smooth threading of the yarn is realized.

The winding device 140 further includes a winding dipping tank 147 for receiving the resin glue solution, the winding dipping tank 147 being located below the winding pawl 144, and a lower half of the winding pawl 144 being located in the winding dipping tank 147. Specifically, the winding dipping groove 147 is in an arc-shaped groove structure, and is matched with the shape of the winding claw 144, so that the winding claw 144 can smoothly rotate in the winding dipping groove 147, namely, the bottom plate of the winding dipping groove 147 is an arc-shaped plate, and the radian of the bottom plate is matched with the arc shape formed by the free ends of the winding rods 1442 on the winding claw 144. The winding dipping groove 147 is matched with the winding claw 144 in shape, so that a small amount of resin glue solution can be used for fully dipping yarns on the winding claw 144, the utilization rate of the resin glue solution is improved, and waste is avoided. The electromagnetic valve 1471 is arranged at the bottom of the winding dipping tank 147 and is used for periodically replacing the resin glue solution in the winding dipping tank 1471, so that the product quality is prevented from being reduced due to the ageing of the resin glue solution, when the resin glue solution needs to be replaced, the electromagnetic valve 1471 is opened, after the resin glue solution in the winding dipping tank 147 is released completely, the electromagnetic valve 1471 is closed, and then a new resin glue solution is poured.

The winding dipping tank 147 also has a constant temperature heating function, and by setting a proper temperature, the resin glue solution in the winding dipping tank 147 can always keep proper viscosity, so that the yarn is convenient to infiltrate, and the phenomenon that the yarn cannot infiltrate fully when the temperature is too low is avoided, so that the product quality is affected.

The threading path of the yarn on the winding device 140 is: the yarns of the yarn packages in the yarn packages 145 are threaded out from the corresponding first yarn guiding holes 1422, then are threaded into gaps between the four wire walking rods 1462 and the bottom plate of the wire walking rack 1461 from the fixed ends of the corresponding wire walking members 146, are threaded out from the free ends of the wire walking members 146, and sequentially pass through the corresponding second yarn guiding holes 14311 on the yarn guiding plate 1431 close to the winding disc 142, the corresponding second yarn guiding holes 14311 on the yarn guiding plate 1431 far away from the winding disc 142, the third yarn guiding holes 14421 on the corresponding winding rods 1442, and the fourth yarn guiding holes 14431 on the corresponding winding members 1443. When the winding device 140 is operated, the winding motor 141 drives the winding device 140 to rotate, so that the yarn passing through the winding device 140 continuously moves, sequentially passes through the first yarn guiding hole 1422, the wire feeding piece 146, the second yarn guiding hole 14311 and the third yarn guiding hole 14421, then infiltrates the resin glue solution in the winding glue dipping groove 147, further penetrates into the fourth yarn guiding hole 14431, and finally winds around the outer periphery of the core mold.

The winding disc 142, the yarn guiding component 143 and the winding claw 144 are matched with each other, so that the tension of the yarn can be increased, namely, the yarn can maintain proper winding tension after sequentially passing through the first yarn guiding hole 1422, the second yarn guiding hole 14311, the third yarn guiding hole 14421 and the fourth yarn guiding hole 14431, and the phenomenon that the quality of a product is influenced due to loose displacement caused by insufficient tension when the yarn is wound around the periphery of the core mold is avoided.

In the present embodiment, sixteen yarn bobbins 145 are disposed on the winding disc 142, wherein eight yarn bobbins 145 are uniformly circumferentially distributed on the inner side of the winding disc 142 around the winding through hole 1421, and the other eight yarn bobbins 145 are uniformly circumferentially distributed on the outer side of the winding disc 142, and the yarn bobbins 145 on the inner side and the outer side of the winding disc 142 are alternately disposed, that is, the connection line between the centers of the sixteen yarn bobbins 145 and the center of the winding disc 142 may divide the winding disc 142 sixteen. Correspondingly, sixteen first yarn guide holes 1422 and sixteen routing members 146 are arranged on the winding disc 142, sixteen second yarn guide holes 14311 are arranged on each yarn guide plate 1431, sixteen winding rods 1442 and sixteen winding members 1443 are arranged on the winding claws 144, three third yarn guide holes 14421 are sequentially arranged on each winding rod 1442 along the length direction of the winding rod 1442, and two fourth yarn guide holes 14431 are sequentially arranged on each winding member 1443 along the length direction of the winding member 1443. Sixteen groups of first yarn guide holes 1422, second yarn guide holes 14311, and third yarn guide holes 14421 are provided corresponding to fourth yarn guide holes 14431. In other embodiments, the number of the yarn bobbins may be ten, twenty, etc., the number of the first yarn guide holes, the second yarn guide holes, the third yarn guide holes and the fourth yarn guide holes may be ten, twenty, or equal proportion, respectively, and the number may be increased or decreased, and may be designed according to the process requirements, so long as the yarn bobbins, the first yarn guide holes, the second yarn guide holes, the third yarn guide holes and the fourth yarn guide holes are provided in correspondence, and the yarn may be threaded therein to ensure a proper winding tension, which is not particularly limited herein.

In this embodiment, each set of yarn guiding holes includes a first yarn guiding hole 1422, two second yarn guiding holes 14311, three third yarn guiding holes 14421 and two fourth yarn guiding holes 14431, and each yarn sequentially passes through the first yarn guiding hole 1422, the wire feeding member 146, the two second yarn guiding holes 14311, any one or more third yarn guiding holes 14421 and any one or more fourth yarn guiding holes 14431 in each set of yarn guiding holes and then winds around the outer periphery of the core mold, so that the winding tension of all yarns is kept consistent and uniformly winds around the outer periphery of the core mold. In other embodiments, other yarn guiding hole combination modes may be adopted, for example, only one second yarn guiding hole, one third yarn guiding hole and one fourth yarn guiding hole are provided, or no second yarn guiding hole is provided, or more types of yarn guiding holes are provided, and the yarn guiding holes are adjusted according to specific requirements, so long as the yarn can be sequentially penetrated through the yarn guiding holes and then kept at proper winding tension, and the yarn guiding device is not particularly limited.

In the present embodiment, the winding forming apparatus 100 includes two winding devices 140, the two winding devices 140 being disposed opposite to each other in the length direction of the frame, and the two winding motors 141 driving the two winding devices 140 to rotate in opposite directions, respectively, thereby achieving bidirectional winding of the yarn. Two winding devices 140 are arranged for bidirectional winding, two layers of annular structures with the same winding angle and opposite directions can be formed by winding at the periphery of the core mold, and the annular strength of the product is improved. Of course, two winding motors 141 may be provided to drive the two winding devices 140 to wind in the same direction, and sequentially wind around the core mold to form two layers of annular structures with the same winding angle and direction, which is adjusted according to the specific product design. It should be noted that, when the winding angle of the yarn is less than 85 °, the design of the winding angle of the yarn has a great influence on the mechanical properties of the product, and two winding devices 140 are generally required to be arranged for bidirectional winding, so that the yarn layering structure of the product is symmetrical and the stress is reasonable; when the winding angle of the yarn is more than or equal to 85 degrees, the influence of the winding angle design of the yarn on the mechanical property of the product is small, namely, the winding angle of the yarn can be approximately considered to be 90 degrees, and the two winding devices 140 are arranged for bidirectional winding or same-direction winding at the moment, so that the annular structure of the product can be finally formed. Because the winding claws 144 and the yarn cylinders 145 are respectively positioned on the two side disc surfaces of the winding discs 142 on the same winding device 140, the two winding devices 140 are arranged in opposite directions, namely the yarn cylinders 145 on the two winding discs 142 are arranged in opposite directions, and the winding claws 144 of the two winding devices 140 are arranged in opposite directions, on one hand, the yarn cylinders 145 on the two winding discs 142 are arranged in opposite directions, so that an operator can replace yarn rolls on the two winding discs 142 at the position between the two winding discs 142, and the operation efficiency is high; on the other hand, when the winding angle of the yarn is greater than or equal to 85 degrees, the winding claws 144 on the two winding devices 140 are arranged in opposite directions, so that enough space can be provided for the two winding devices 140 to wind the yarn around the outer periphery of the core mold, the yarn replacement operation can be performed alternately when the two winding devices 140 wind bidirectionally or wind in the same direction without stopping, namely, when one winding device 140 stops for yarn replacement, the winding speed of the other winding device 140 is doubled, the product can keep the same wall thickness for continuous production, and when one winding device 140 finishes yarn replacement, the operation is repeated for yarn replacement operation of the other winding device, so that uninterrupted production of the product is realized, and the production efficiency is improved. In other embodiments, one or three winding devices may be provided, and the design is designed according to the structural requirement of the product, which is not particularly limited herein.

Referring to fig. 1 and 6, the winding forming apparatus 100 further includes a plurality of height-adjustable supporting devices 150, the supporting devices 150 are disposed below the mandrel along the width direction of the frame 110, and the plurality of supporting devices 150 are distributed in parallel along the length direction of the frame 110. The support devices 150 with adjustable height are arranged below the core mold, so that the core mold can be supported in the process of mounting and dismounting the core mold, the auxiliary core mold smoothly penetrates into and moves out of the winding device 140, and the operation is simple and convenient and the operation efficiency is high.

The supporting device 150 is a screw turbine lifter, and comprises a transmission frame 151, a moving frame 152, a supporting rod 153, two supporting auxiliary pieces 154 and a hand wheel 155. Specifically, the transmission frame 151 is fixed to the frame 110 in the width direction of the frame 110; the moving frame 152 is connected with the transmission frame 151 through a screw rod, so that the moving frame 152 can move along the axial direction of the screw rod, namely, the vertical direction; the support rod 153 is a rod member, with a circular cross section, fixedly disposed on the moving frame 152 along the width direction of the frame 110, and used for supporting the core mold; the two supporting auxiliary pieces 154 are in a round table structure, are movably connected to the supporting rods 153 and are coaxially arranged with the supporting rods 153 and are used for assisting in supporting the core mold, the smaller bottom surfaces of the two supporting auxiliary pieces 154 are oppositely arranged, so that the two supporting auxiliary pieces 154 are oppositely arranged in a V-shaped opening, and the core mold is in a cylindrical structure, and can be clamped by the two supporting auxiliary pieces 154 when being placed on the supporting rods 153 due to the V-shaped opening, so that the sliding caused by rolling is not easy to occur; the hand wheel 155 is connected with the transmission frame 151 through a connecting rod, and gears in the transmission frame 151 can be controlled to rotate by rotating the hand wheel 155, so that the screw rod is driven to rise or fall, the movable frame 152 is controlled to move up and down along the vertical direction, and in other embodiments, a servo motor can be arranged to control the movable frame to move along the vertical direction, so that automatic operation is realized, and the moving distance is accurately controlled.

Because auxiliary stay piece 154 is direct with the mandrel contact, because friction damage mandrel surface when promoting the mandrel, auxiliary stay piece 154 sets up to nylon material, and nylon material mechanical strength is high, toughness is good, and the surface is smooth, and coefficient of friction is little, can not cause the damage to the mandrel surface. In other embodiments, the auxiliary supporting member may be made of other materials, so long as the surface smoothness of the auxiliary supporting member is ensured, and the surface of the core mold is not damaged.

In the present embodiment, the number of the supporting devices 150 is four, and the supporting devices 150 are distributed in parallel along the length direction of the frame 110, wherein two supporting devices 150 are located between the core fixing device 130 and the winding device 140 adjacent to the core fixing device 130, one supporting device 150 is located at one side of the other winding device 140 away from the core fixing device 130, and one supporting device 150 is located between the two winding devices 140. In other embodiments, the number and mounting location of the support means may be designed according to the length of the apparatus, and is not particularly limited herein.

When installing the mandrel, the heights of the supporting devices 150 are adjusted to be above the lowest point of the winding through hole 1421, namely, the heights of the supporting rods 153 are adjusted to be slightly higher than the lowest point of the winding through hole 1421, so that the mandrel can smoothly pass through the winding through hole 1421, at the moment, one end of the travelling crane is utilized to hoist the mandrel to the supporting device 150 farthest from the mandrel fixing device 130, the mandrel is slowly pushed to sequentially pass through the winding device 140 far from the mandrel fixing device 130, the supporting device 150, the winding device 140 close to the mandrel fixing device 130, the two supporting devices 150 and the mandrel fixing device 130, and then, the heights of the supporting devices 150 are adjusted to be below the lowest point of the mandrel, namely, the heights of the supporting rods 153 are lower than the lowest point of the mandrel, so that the supporting devices 150 can not influence the production of products. The operation of the core mold is the same when the core mold is disassembled, and the description is omitted. The support devices 150 are arranged below the core mold, so that the core mold can be erected on the support devices 150 in the mounting and dismounting processes, and compared with the traditional direct lifting core mold, the operation is simple and convenient and the operation efficiency is high when the core mold penetrates into and moves out of the winding device.

With continued reference to fig. 1 and 7, the winding forming apparatus 100 further includes a felt arrangement 160, where the felt arrangement 160 is fixedly disposed on the first frame 111 and above the mandrel fixture 130. Specifically, the felt-laying device 160 includes a plurality of felt-hanging frames 161, a tensioner 162, a felt-roll dipping tank 163, a plurality of felt-moving rods 164, and a felt-guiding device (not shown), wherein the plurality of felt-hanging frames 161 are fixed on the first frame 111 along the width direction of the frame 110 for placing the felt roll; a tensioner 162 is connected to one end of the felt rack 161 for increasing the tension of the felt; the felt roll dipping tank 163 is fixed on the first frame 111 along the width direction of the frame 110 and is positioned below the felt hanging frame 161 and is used for accommodating resin glue solution to infiltrate felt cloth, two glue scraping plates 1631 are arranged on the felt roll dipping tank 163 along the width direction of the frame 110, a certain gap is reserved between the two glue scraping plates 1631, and redundant resin glue solution can be scraped back into the felt roll dipping tank 163 from the felt cloth when the felt cloth penetrates out of the gap between the two glue scraping plates 1631 after the felt cloth infiltrates the resin glue solution, so that waste is avoided, the rest structures of the felt roll dipping tank 163 are similar to the winding dipping tank 147, and redundant description is omitted; three felt-moving rods 164 are fixed on the first frame 111 along the width direction of the frame 110 and are distributed in parallel, wherein one felt-moving rod 164 is positioned in the felt-roll dipping tank 163 and has a certain gap with the bottom plate of the felt-roll dipping tank 163, felt cloth is penetrated in the gap to infiltrate glue solution, so that the felt cloth is always positioned at the bottom of the felt-roll dipping tank 163, the infiltration effect of the felt cloth is ensured, and the other two felt-moving rods 164 are respectively positioned above and below the felt-moving rods 164 and are used for increasing the tension of the felt cloth; the felt guide is fixed on the frame 110 and is located above the core mold, and is used for making felt cloth cylindrically cover the periphery of the core mold.

When the felt cloth device 160 operates, the felt cloth on the felt rack 161 firstly passes through the gap between the felt coil dipping groove 163 and the felt moving rod 164 above the felt coil dipping groove after being lowered, then sequentially passes through the gap between the two scraping plates 1631, the felt moving rod 164 above the felt moving rod 164 and the felt moving rod 164 below the felt moving rod 164, then forms a cylinder shape through the felt guide, and finally covers the periphery of the core mold.

In this embodiment, the number of the hanging frames 161 is three, and the number of the felt moving rods 164 is also three, and in other embodiments, the number and the arrangement positions of the hanging frames, the felt moving rods can be designed according to the process requirements, and the present invention is not limited thereto.

Referring to fig. 1 and 8, the winding forming apparatus 100 further includes a glue recycling device 170, where the glue recycling device 170 includes a plurality of glue recycling tanks 171 and a plurality of glue recycling boxes, the plurality of glue recycling tanks 171 are horizontally disposed on the frame 110 along a length direction of the frame 110 and are located below a yarn motion path, a recycling hole 1711 is disposed at a bottom of the glue recycling tank 171, and the recycling hole 1711 is disposed in communication with the glue recycling boxes. Because the yarn after being immersed in the resin glue solution can drop redundant resin glue solution in the movement process, the plurality of glue solution recovery tanks 171 and the glue solution recovery tanks are arranged, the resin glue solution dropped at each position in the preforming process can be recovered independently, the recovery efficiency is high, the ageing failure problem caused by overlong backflow paths and overlong exposure time of the resin glue solution in the air is effectively avoided, and the recovery utilization rate of the resin glue solution is improved.

The glue solution recovery tank 171 has a quadrangular pyramid structure, and is formed by connecting four triangular stainless steel sheets in a welding manner, and recovery holes 1711 are formed in the bottoms of the four stainless steel sheets, which are connected with each other. When the resin glue drops fall on the glue solution recovery tank 171, the quadrangle cone structure can enable the resin glue solution to flow into the recovery hole 1711 along the side wall of the glue solution recovery tank 171, and then flow into the glue solution recovery tank through the pipeline, so that the resin glue solution can be rapidly recovered. In other embodiments, the glue solution recovery tank may have a conical or triangular cone structure, may be made of other materials such as steel plates, may be manufactured by integral molding, or the like, so long as the resin glue solution can be recovered quickly, and is not particularly limited.

In the yarn moving path, since the span between the partial structures of the winding apparatus 100 is long, it is inconvenient to provide the glue recovery tank 171, and thus a plurality of glue return plates 172 are provided. Wherein, one end of a part of glue solution reflux plate 172 is connected with the glue dipping device 120, the other end is connected with the glue solution recovery tank 171, when the resin glue solution drops on the part of glue solution reflux plate 172, the resin glue solution can quickly reflux into the glue dipping device 120 along the glue solution reflux plate 172; two ends of the other glue solution reflux plate 172 are respectively connected with the two glue solution recovery tanks 171, and when the resin glue solution drops on the glue solution reflux plate 172, the resin glue solution can quickly flow to the glue solution recovery tanks 171 along the glue solution reflux plate 172 and then flows into the glue solution recovery tanks. The glue solution reflux plates 172 are matched with the glue solution recovery tank 171 to realize the rapid recovery of the resin glue solution in the whole yarn motion path.

In the present embodiment, the number of the glue solution recovery tanks 171 is four, the number of the glue solution recovery tanks is four, and the number of the glue solution reflux plates 172 is six, and in other embodiments, the specific number of the glue solution recovery tanks, and the glue solution reflux plates is not limited, as long as rapid recovery of the resin glue solution can be achieved.

When the resin glue in the glue solution recovery box reaches a certain volume, the resin glue solution can be pumped back into the glue dipping tank 124 of the glue dipping device 120 by the glue pumping pump for dipping yarns, so that the recovery and the reutilization of the resin glue solution are realized. The recovered resin glue solution is pumped back into the dipping tank 124 of the dipping device 120 instead of the winding dipping tank 147 of the winding device 140, mainly because when the winding device 140 operates, the winding claw 143 continuously rotates around the core mold in a vertical plane so as to drive the yarn to rotate, so that the yarn at the lower half part of the winding claw 143 fully infiltrates into the winding dipping tank 147 and then upwards rotates to wind on the core mold, in the process, because the yarn on the winding claw 143 always moves in the vertical plane, when the yarn continuously upwards rotates after being infiltrated with the resin glue solution, the excessive resin glue solution on the yarn can drop into the winding dipping tank 147, so that the consumption speed of the resin glue solution in the winding dipping tank 147 is slower, if the recovered resin glue solution is pumped back into the winding dipping tank 147, excessive resin glue solution in the winding dipping tank 147 can be caused, the movement of the yarn is hindered, and the problems of fiber breakage and the like can be caused.

The wrap forming arrangement 100 also includes a plurality of threading plates for carding the yarns. The vertical setting of length direction along frame 110 of a plurality of threading plate just parallel distribution in frame 110, threading plate center is equipped with the through-hole and is used for the cover to establish the mandrel, and the through-hole diameter is greater than the diameter of mandrel, and after threading plate cover was established at the mandrel periphery, the yarn can evenly wear to establish in the clearance between threading plate and mandrel, makes yarn circumferential equipartition in mandrel periphery, can guarantee the yarn at the furthest not take place the problem that the yarn was knotted at the in-process of marcing to can guarantee to draw the hollow insulating tube wall thickness of twining the shaping even.

In another embodiment, the present application provides a stretch-wrap forming line for manufacturing a stretch-wrap product, the stretch-wrap forming line sequentially including a yarn laying device for laying a yarn, a winding forming device 100 for winding the yarn, a forming device for solidifying the impregnated yarn into the stretch-wrap product, a traction device for providing a traction force, and a cutting device for cutting the stretch-wrap product along a forming advancing direction of the stretch-wrap product.

The yarn distribution device is provided with a plurality of yarns, and the yarns are led out by the yarn distribution device, enter the dipping device 120 in the winding forming equipment 100 for dipping the resin glue solution, and enter the winding device 140. The winding and forming apparatus 100 is specifically described above, and will not be described again.

The forming device comprises a heating device, an outer die and a core die, one end of the core die is fixed on the core die fixing device 130, the other end of the core die sequentially penetrates through two winding devices 140 and then enters a die cavity of the outer die, a tubular channel is formed between the core die and a cavity wall of the die cavity, the heating device is arranged outside the outer die, and yarns are penetrated in the tubular channel and are formed into a drawn winding product through heating and solidifying.

The traction device comprises two clamping traction mechanisms which can alternately advance, and can draw the drawn and wound product within a certain distance to realize continuous forming. The clamping traction mechanism comprises a sliding holding claw and a movable holding claw, wherein the sliding holding claw is slidably connected with the stand 110, the movable holding claw can move along the vertical direction, the two holding claws are arranged in opposite directions, the hydraulic cylinder drives the movable holding claw which can move along the vertical direction to move downwards, so that the movable holding claw and the sliding holding claw are matched to hold, clamp and pull a winding product, the sliding holding claw can slide on the stand 110, the clamping traction mechanism can slide on the stand 110, and accordingly the winding product clamped by the two holding claws is driven to synchronously move along with the clamping traction mechanism.

The cutting device comprises a follower and a cutting mechanism arranged on the follower and used for cutting the drawn and wound product, the follower comprises a base and a clamping mechanism arranged on the base, and the clamping mechanism is used for clamping the drawn and wound product so that the follower integrally moves synchronously with the drawn and wound product. The cutting mechanism is fixedly connected with the base, so that the cutting mechanism can synchronously move along with the follower mechanism to realize synchronous cutting.

The stretch-wrap forming production line also comprises a control system for controlling all process parameters in the stretch-wrap forming production process and feeding back actual results. When the pulling and winding forming production line runs, the ratio of the set traction speed and the set winding rotating speed of the pulling and winding product in the linkage state is a fixed ratio, so that the pulling and extruding speeds are matched, and the product quality is ensured. Further, the stretch-wrap forming production line is also provided with a plurality of sensors which are respectively used for measuring the actual advancing speed and the actual winding rotating speed of the stretch-wrap product, when the deviation exists between the ratio of the actual advancing speed and the actual winding rotating speed of the stretch-wrap product and the ratio between the set traction speed and the set winding rotating speed, the control system can automatically adjust the winding rotating speed and alarm the speed difference, and the problems of winding yarn accumulation, die blockage, even production line shutdown and the like caused by mismatching of the pulling and the winding speeds are avoided.

In the present embodiment, the feedback control method of the winding speed is a semi-closed loop control method, that is, the actual winding speed is obtained by detecting the speed of the winding disc 142 and compared in the control system to realize closed loop control, and the cost can be effectively reduced while the control accuracy is satisfied, compared with the full-closed loop control method using the angular speed.

When the stretch winding forming production line runs, firstly, the fiber is required to be soaked in resin and then preformed, namely, yarns on the yarn distribution device are soaked in resin glue solution through the glue soaking device 120 and then are paved on the periphery of the core die along the axial direction of the core die to form an axial layer; the yarns on the winding device 140 are soaked in the resin glue solution through the winding glue soaking grooves 147 and then wound on the periphery of the axial layer through the winding claws 144 to form a winding layer; the felt cloth on the felt cloth device 160 is soaked in the resin glue solution through the felt roll glue soaking groove 163 and then is formed into a cylinder shape through the felt guide to be coated on the periphery of the winding layer, so that a prefabricated member is obtained; then the prefabricated member enters a tubular channel between an outer die and a core die of a forming device, and a pull winding product is obtained through high-temperature curing; the two clamping traction mechanisms of the traction device alternately advance to continuously draw the drawn and wound product, so that the yarn continuously enters the forming device, and the solidified and formed drawn and wound product continuously pulls out from the forming device to advance forwards for continuous production; the cutting device cuts according to the required size of the stretch wrap product.

The stretch-wrap forming production line realizes automatic production of stretch-wrap products, reduces labor cost and has high production efficiency.

In still another embodiment, the present application provides a method for producing a stretch-wrap product, which adopts the stretch-wrap forming production line, and specifically includes the following steps:

S101: forming an inner axial layer by pultrusion outside the mandrel;

the yarns on the yarn distribution device are led out and then are penetrated into the impregnating device 120 to infiltrate the resin glue solution, specifically, the yarns led out by the yarn distribution device are led into the impregnating tank 124 through the yarn collecting plate 122, namely, the resin glue solution is sequentially penetrated into gaps between the plurality of impregnating rollers 1251 and the bottom plate of the impregnating tank 124, and then are divided into two yarns through the two yarn dividing plates 123, the yarns bypass the mandrel fixing device 130, are gradually close to the mandrel from two sides of the mandrel and cover the periphery of the mandrel, and the inner axial layer is formed by pultrusion.

Wherein, the dipping tank 124 has a constant temperature heating function, and by setting a proper temperature, the resin glue solution in the dipping tank 124 can always keep proper viscosity, so that the yarn is convenient to infiltrate, and the phenomenon that the yarn cannot infiltrate fully due to overlarge viscosity of the resin glue solution when the temperature is too low is avoided, thereby influencing the product quality.

S102: and (5) winding the inner axial layer to form a winding layer, and obtaining the prefabricated member of the pull-winding product.

The yarns in the yarn cylinder 145 on the winding device 140 are led out from the first yarn guide hole 1422, and sequentially correspondingly pass through the wiring piece 146, the second yarn guide hole 14311 on the yarn guide plate 1431 and the third yarn guide hole 14421 on the winding rod 1442, then the winding dipping tank 147 is immersed with resin glue solution, and then penetrates into the fourth yarn guide hole 14431 on the winding piece 1443, the winding motor 141 drives the winding device 140 to rotate, so that the yarns passing through the winding device 140 continuously move, and the winding layer is formed by winding at the outer side of the inner axial layer, so that the prefabricated member of the drawn and wound product is obtained.

Wherein, winding impregnation groove 147 also has constant temperature heating function, through setting up suitable temperature, can make the resin glue solution in the winding impregnation groove 147 keep suitable viscosity all the time, and the yarn infiltration of being convenient for avoids when the temperature is too low resin glue solution viscosity too big, and the yarn can't fully infiltrate, and then influences product quality.

One or two winding devices 140 may be selected according to specific requirements. When two winding devices 140 are used and the winding angle of the yarns is smaller than 85 degrees, the design of the winding angle of the yarns has great influence on the mechanical properties of the product, and two winding devices 140 are generally required to be arranged for bidirectional winding, so that the yarn layering structure of the product is symmetrical and the stress is reasonable; when the winding angle of the yarn is more than or equal to 85 degrees, the influence of the winding angle design of the yarn on the mechanical property of the product is small, namely, the winding angle of the yarn can be approximately considered to be 90 degrees, and the two winding devices 140 are arranged for bidirectional winding or same-direction winding at the moment, so that the annular structure of the product can be finally formed.

In this step, when the pultrusion and winding speeds are not matched, the control system will automatically adjust the winding speed and alarm the speed difference, as described above, and will not be described again.

S103: the prefabricated member enters a forming device to form the drawn and wound product through high-temperature solidification, and the drawing device draws the drawn and wound product to move along the forming advancing direction of the drawn and wound product, so that the drawn and wound product is continuously formed.

The prefabricated member enters a forming device, namely, yarns soaked in resin glue solution penetrate through a tubular channel between a core mold and an outer mold, a drawn and wound product is obtained through high-temperature curing and forming, and the two clamping traction mechanisms of the traction device alternately advance to continuously draw the drawn and wound product, so that the yarns continuously enter the forming device, and the cured and formed drawn and wound product continuously advances from the forming device and is continuously produced.

S104: the cutting device cuts the stretch wrap article according to a predetermined length.

When the stretch-wrap product reaches the preset length, the clamping mechanism of the cutting device holds the stretch-wrap product so that the whole follower mechanism moves synchronously along with the stretch-wrap product, the cutting mechanism is driven to move synchronously, and meanwhile the cutting mechanism cuts the stretch-wrap product.

After cutting is completed, the cutting device is reset and waits for the next cutting.

In one application scenario, the stretch wrap article may also be provided with an outer axial layer. That is, between step S102 and step S103, step S10 is further included: and (5) carrying out pultrusion outside the winding layer to form an outer axial layer, thus obtaining the prefabricated member of the stretch-wound product. The specific process is similar to the step of forming the inner axial layer by pultrusion in S101, and will not be described here again.

In another application scenario, the stretch wrap article may also be provided with an inner liner. That is, before step S101, step S11 is further included: and wrapping felt cloth on the periphery of the core mold to form the inner liner. Specifically, the felt cloth on the felt cloth device 160 is soaked in the resin glue solution through the felt roll soaking groove 163, and then is formed into a cylindrical shape to be wrapped on the periphery of the core mold through the felt guide, so as to form the inner liner.

In another application scenario, the stretch wrap article may also be provided with an outer felt layer. That is, between step S102 and step S103, step S12 is further included: and wrapping felt cloth on the outer side of the winding layer to form an outer felt layer, so as to obtain the prefabricated member of the stretch-wound product. Specifically, the felt cloth on the felt cloth device 160 is soaked in the resin glue solution through the felt roll soaking tank 163, and then is formed into a cylinder shape by the felt guide to be coated on the periphery of the winding layer, so as to form an outer felt layer.

In still another application scenario, the stretch-wrapped product may further simultaneously provide an inner liner layer, an outer axial layer, and an outer felt layer, that is, step S11 is included before step S101, and steps S10 and S12 are sequentially included between step S102 and step S103, which is not described in detail.

The preparation method of the stretch-wrapped product is adopted, the inner axial layer and the wrapping layer are formed by pultrusion and wrapping successively, the stretch-wrapped product is formed after high-temperature solidification, the process is simple, the production efficiency is high, the cost is low, and the stretch-wrapped product prepared by the method has good annular strength and axial strength, can bear annular acting force and axial acting force at the same time, and is excellent in mechanical property.

The beneficial effects of this application are: the winding forming equipment of the utility model comprises a frame, a gum dipping device, a core mold fixing device and a winding device, wherein the core mold fixing device and the frame of the winding device are separated, so that the phenomenon of fiber layer deviation caused by vibration of the winding device caused by stress of the core mold can be prevented, and the product qualification rate is effectively improved.

Simultaneously, the winding former of this application sets up a plurality of height-adjustable's strutting arrangement in the below of mandrel, makes the mandrel penetrate with shift out when winding device with the dismantlement in-process, easy and simple to handle, operating efficiency are high.

In addition, the winding forming equipment is further provided with a plurality of glue solution recovery tanks and glue solution recovery boxes, resin glue solutions dropped from all parts in the preforming process are recovered independently, the problems of aging failure and fiber breakage caused by overlong exposure time of the resin glue solutions in the air are effectively avoided, and the recovery utilization rate of the resin glue solutions is improved.

The foregoing description is only of embodiments of the present application, and is not intended to limit the scope of the patent application, and all equivalent structures or equivalent processes using the descriptions and the contents of the present application or other related technical fields are included in the scope of the patent application.

Claims (12)

1. A winding forming apparatus, characterized in that the winding forming apparatus comprises: the yarn winding device comprises a frame, a dipping device for dipping yarns, a core die fixing device for fixing a core die and a winding device for winding the yarns on the core die, wherein the dipping device, the core die fixing device and the winding device are sequentially arranged along the length direction of the frame;

the frame comprises a first frame and a second frame, the mandrel fixing device is arranged on the first frame, and the winding device is vertically arranged on the second frame;

the first rack and the second rack are arranged separately.

2. The winding forming device according to claim 1, further comprising a plurality of glue solution recovery tanks and a plurality of glue solution recovery boxes, wherein the plurality of glue solution recovery tanks are horizontally arranged on the frame along the length direction of the frame and are all positioned below the yarn movement path, recovery holes are formed in the bottoms of the glue solution recovery tanks, and the recovery holes are communicated with the glue solution recovery boxes.

3. The winding and shaping apparatus as set forth in claim 1, further comprising a plurality of height-adjustable supporting means disposed below the core die in a width direction of the frame, the plurality of supporting means being distributed in parallel in a length direction of the frame.

4. A winding forming apparatus according to claim 3, wherein the supporting means comprises a transmission frame, a moving frame to which the moving frame is movably connected in a vertical direction, a supporting rod fixed to the moving frame, two supporting assistants movably connected to the supporting rod, and a driving mechanism connected to the transmission frame for driving the moving frame to move up and down in a vertical direction.

5. The winding and forming device according to claim 1, wherein the winding device comprises a winding motor, a winding disc, a yarn guiding assembly and a winding claw which are sequentially sleeved on the periphery of the core mould along the length direction of the frame, yarn guiding holes are respectively formed in the winding disc, the yarn guiding assembly and the winding claw and correspond to each other, the yarn sequentially passes through the yarn guiding holes in the winding disc, the yarn guiding assembly and the winding claw, and the winding motor drives the winding device to rotate so as to enable the yarn to be wound on the periphery of the core mould.

6. The winding and shaping apparatus of claim 5 wherein said winding device further comprises a winding dipping tank, said winding dipping tank being located below said winding pawl and a lower half of said winding pawl being located in said winding dipping tank.

7. The winding and shaping apparatus of claim 5 wherein said winding and shaping apparatus includes two said winding devices disposed opposite each other along the length of said frame.

8. The winding forming apparatus according to claim 7, wherein the two winding motors respectively drive the two winding devices to rotate in opposite directions, thereby achieving bidirectional winding of the yarn.

9. The winding and shaping apparatus of claim 1 further comprising a felt arrangement fixedly disposed on the first frame above the mandrel fixture.

10. The winding and forming apparatus according to claim 9, wherein the felt-laying device includes a felt-laying frame for placing the felt roll, a tensioner for driving the felt-laying frame to rotate, and a felt-roll dipping tank, the felt-laying frame, the felt-roll dipping tank being provided on the first frame in a width direction of the frame, and the felt-roll dipping tank being located below the felt-laying frame, the tensioner being connected to one end of the felt-laying frame.

11. The winding and forming device according to claim 10, wherein two doctor plates are provided on the felt roll impregnation tank in the width direction of the first frame, and a gap is left between the two doctor plates.

12. A stretch-wrap forming line for manufacturing stretch-wrap products, characterized in that it comprises, in succession, a yarn laying device, a winding forming apparatus according to any one of claims 1 to 11, a forming device, a traction device, a cutting device, along the direction of advance of the shaping of the stretch-wrap products.

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