CN115256940A

CN115256940A - Composite material twisting and stranding tool head and 3D printing equipment

Info

Publication number: CN115256940A
Application number: CN202210982460.3A
Authority: CN
Inventors: 李江山; 喻川; 王道群; 杨道乾
Original assignee: Guizhou Hansikai Intelligent Technology Co ltd
Current assignee: Guizhou Hansikai Intelligent Technology Co ltd
Priority date: 2022-08-16
Filing date: 2022-08-16
Publication date: 2022-11-01

Abstract

The invention belongs to the technical field of composite material manufacturing, and particularly relates to a composite material twisting and plying tool head and 3D printing equipment, wherein the composite material twisting and plying tool head comprises a mounting frame, a plurality of silk thread winding drum assemblies and a silk collecting box, a fiber bundle to be plied passes through a first silk guide hole, a second silk guide hole and a silk collecting pipe, the guided silk threads are subjected to traction force, a plurality of silk threads are plied through the rotation of a first rotating disc and a second rotating disc, the fiber bundle to be plied is adhered to an adhesive in the silk collecting box, the plying and the bonding of the plurality of fiber bundles can be completed in one step without using other tools for bonding, the production efficiency is improved, the fiber bundle to be plied of the composite material twisting and plying tool head is adhered with the adhesive in the silk collecting box before plying, therefore, the bonding of the plied yarns is firmer, the 3D printing equipment is combined with a mechanical arm and the composite material twisting and plying tool head, the plying of the plurality of fiber bundles to be plied and the product forming can be performed simultaneously, and the production efficiency is improved.

Description

Combined material twisting plying instrument head and 3D printing apparatus

Technical Field

The invention belongs to the technical field of composite material manufacturing, and particularly relates to a composite material twisting and stranding tool head and 3D printing equipment.

Background

In the manufacturing process of the fiber reinforced composite material, a plurality of fiber bundles are usually required to be firstly stranded into a line, the fiber bundles have better strength and wear resistance compared with single fiber bundles, and the fiber bundles can be woven into a lightweight material with higher mechanical strength after being stranded, so that the fiber reinforced composite material can be applied to many occasions, such as automobile shells and chassis.

The fiber bundle stranding method comprises the steps that a plurality of fiber bundles are led out from a yarn winding drum to penetrate through the same yarn collecting hole and are twisted together in a rotating mode to complete preliminary stranding, and then final stranding is completed through other tools by using an adhesive to be used for manufacturing fiber composite materials.

Disclosure of Invention

The invention aims to provide a composite material twisting and stranding tool head and 3D printing equipment, which can complete stranding and bonding of a plurality of fiber bundles at one time.

The invention provides a composite material twisting and plying tool head based on the above purpose, which comprises:

a mounting frame;

the yarn winding device comprises a plurality of yarn winding drum assemblies, a plurality of yarn winding drum assemblies and a plurality of yarn winding drum assemblies, wherein the yarn winding drum assemblies are arranged on a mounting rack and are used for arranging fiber rolls to be plied; and

the silk collecting box comprises a first rotating disc and a second rotating disc, a plurality of silk guide holes are formed in the first rotating disc, a plurality of silk guide holes are formed in the second rotating disc, the silk collecting box is communicated with a silk collecting pipe and is multiple in that a fiber bundle to be stranded led out by the silk thread winding drum assembly sequentially passes through the first silk guide holes, the second silk guide holes and the silk collecting pipe and is led out after the silk collecting pipe is stranded, a binding agent is arranged in the silk collecting box and is multiple in that the fiber bundle to be stranded is adhered to the binding agent through the rotating disc and is adhered in the silk collecting pipe.

Optionally, the mounting frame includes a plurality of sets of vertical frames uniformly distributed in the circumferential direction, each set of vertical frame is connected with a yarn guide piece, each yarn guide piece is provided with a yarn guide eye, each set of vertical frame is rotatably provided with a yarn winding drum assembly, and the fiber bundles to be twisted led out by the yarn winding drum assemblies pass through the corresponding yarn guide eyes.

Optionally, the silk thread reel assembly comprises a connecting shaft rotatably connected with the mounting frame, a baffle plate and a baffle plate for axially limiting the fiber coil to be stranded, and a rotary damper arranged at one end of the connecting shaft, wherein the rotary damper is used for gently rotating the silk thread reel assembly.

Optionally, the silk thread winding drum assembly further comprises two check rings sleeved on the connecting shaft, a plurality of circumferentially distributed connecting strips for connecting the two check rings, a plurality of circumferentially distributed arc-shaped plates and an adjusting nut screwed with the connecting shaft; every arc has a set of articulated elements along self length direction articulates, and the quantity of a set of articulated elements is two at least, and a set of articulated elements is articulated with a connecting strip that corresponds, is close to the retaining ring and the connecting axle rigid connection of baffle, connecting strip and the retaining ring sliding connection who is close to the baffle, and another retaining ring can be used for adjusting the distance of arc and connecting axle along the connecting axle removal through adjusting nut, the arc is used for the cover to establish and treats the plying fibre book.

Optionally, one end of each arc-shaped plate, which is far away from the baffle plate, is provided with a baffle plate.

Optionally, the rotational damper is an electromagnetic damper.

Optionally, the mounting frame is provided with a connecting rod, and the first rotating disc and the second rotating disc are coaxially arranged on the connecting rod.

Optionally, the composite material twisting and plying tool head further comprises a fixing frame, one end of the fixing frame is rigidly connected with the filament collecting box, the other end of the fixing frame is provided with a mounting piece, the mounting piece is provided with a motor, and the motor is in driving connection with the mounting frame.

Optionally, the axis of the output shaft of the motor coincides with the center of rotation of the plurality of wire spool assemblies.

The utility model provides a 3D printing apparatus, includes foretell combined material twist plying tool head and controls the arm that combined material twist plying tool head removed.

The invention has the beneficial effects that: the fiber bundles to be plied led out from the silk thread winding drum assemblies of the composite material twisting and plying tool head sequentially pass through the first silk thread hole, the second silk thread hole and the silk collecting pipe, silk threads led out from the silk collecting pipe are subjected to external traction force, a plurality of silk threads are twisted and plied through the rotation of the first rotating disc and the second rotating disc, when the fiber bundles to be plied pass through the second silk thread hole, the fiber bundles to be plied positioned below are adhered to the adhesive, redundant adhesive is removed through the extrusion of the silk collecting pipe and flows back to the silk collecting box, the extrusion of the silk collecting pipe can enable each fiber bundle to be plied to be uniformly adhered to the adhesive, the plying and the bonding of the fiber bundles can be finished at one time, other tools are not needed for bonding, the production efficiency is improved, and the conventional bonding operation is performed after plying, the adhesive is adhered to the appearance of the plied yarn, so that the bonding of the fiber bundles to be plied is firmer.

The utility model provides a 3D printing apparatus, arm and combined material twisting plying tool head combine together, can carry out many simultaneously and wait to ply a strand tow plying and product shaping, and plying and product shaping go on at an equipment simultaneously, have simplified processing equipment, have improved production efficiency, and because the ply yarn through combined material twisting plying tool head, the adhesive is more firm, consequently, the product mechanical strength who obtains is higher.

Drawings

FIG. 1 is a perspective view of a composite twist plying tool head provided in accordance with an embodiment of the present invention;

FIG. 2 is a side view of a composite twist plying tool head provided in accordance with an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a filament collecting box according to an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of a wire spool assembly provided by an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a 3D printing apparatus according to an embodiment of the present invention.

In the figure: 10. a mounting frame; 11. erecting a frame; 12. a wire guide; 121. a guide wire eye; 13. a connecting rod; 20. a wire spool assembly; 21. fiber rolls to be plied; 22. a connecting shaft; 23. a baffle plate; 24. a baffle plate; 25. a rotary damper; 26. a retainer ring; 27. a connecting strip; 271. cutting; 28. an articulation member; 29. an arc-shaped plate; 210. adjusting the nut; 211. locking the nut; 30. a silk collecting box; 31. rotating a first disc; 311. a first wire guide hole; 32. a second rotating disc; 321. a wire guide hole II; 33. a wire collecting pipe; 331. a filament collecting hole; 40. a fixed mount; 41. a mounting member; 50. a motor; 60. a robotic arm.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to specific embodiments and the accompanying drawings.

As shown in fig. 1-3, the present invention provides a composite twist plying tool head comprising: the fiber stranding machine comprises a mounting frame 10, a plurality of wire winding drum assemblies 20 and a wire collecting box 30, wherein the wire winding drum assemblies 20 are arranged on the mounting frame 10, and the wire winding drum assemblies 20 are used for arranging fiber rolls 21 to be stranded; the yarn collecting box 30 comprises a first rotating disc 31 and a second rotating disc 32, a plurality of yarn guide holes 311 are formed in the first rotating disc 31, a plurality of yarn guide holes 321 are formed in the second rotating disc 32, the yarn collecting box 30 is communicated with a yarn collecting pipe 33, fiber bundles to be plied, led out from the yarn winding drum assemblies 20, sequentially penetrate through the yarn guide holes 311, the yarn guide holes 321 and the yarn collecting pipe 33 and are led out after the yarn collecting pipe 33 is plied, an adhesive is filled in the yarn collecting box 30, and the fiber bundles to be plied are adhered with the adhesive and are adhered in the yarn collecting pipe 33 when passing through the first rotating disc 31, so that twisting plying is achieved.

Compared with the prior art, the fiber bundles to be plied, which are led out from the multiple yarn winding drum assemblies 20 of the composite material twisting and plying tool head provided by the embodiment of the invention, sequentially pass through the yarn guide holes I311, the yarn guide holes II 321 and the yarn collecting pipe 33, the yarns led out from the yarn collecting pipe 33 are subjected to external traction force, the multiple yarns are twisted and plied through the rotation of the rotating discs I31 and II 32, when the multiple fiber bundles to be plied pass through the yarn guide holes II 321, the fiber bundles to be plied positioned below adhere to the adhesive, the redundant adhesive is removed through the extrusion of the yarn collecting pipe 33 and flows back to the yarn collecting box 30, and the extrusion of the yarn collecting pipe 33 can ensure that each fiber bundle to be plied is uniformly adhered with the adhesive, so that the plying and the bonding of the multiple fiber bundles can be finished at one time without using other tools for bonding, the production efficiency is improved, and the traditional operation of bonding after plying, most of the adhesive is adhered to the appearance of the plied strands, so that the bonding of the fiber bundles to be plied before the conventional plied, the fiber bundles to be plied to the composite material twisting tool head is firmly, and the bonding of the plied strands is more uniformly adhered to the stranded yarns is more firmly.

In this embodiment, the mounting bracket 10 includes the multiunit grudging post 11 of circumference evenly distributed, be connected with wire guide 12 on every group grudging post 11, wire guide 121 has been seted up to wire guide 12, it sets up a silk thread reel subassembly 20 to rotate on every group grudging post 11, the fibre bundle of waiting to ply that silk thread reel subassembly 20 was drawn forth passes corresponding wire guide 121, so, the multiunit grudging post 11 through a plurality of circumference evenly distributed makes a plurality of silk thread reel subassemblies 20 and a plurality of wire guide 12 also circumference evenly distributed, therefore, every wire guide 121 equals with the distance of silk thread reel subassembly 20, every wire guide 121 is the same to the distance of collection pipe 33, draw forth after the box 30 that gathers the thigh through the silk, make the tensioning force of every fibre bundle of waiting to ply the same, can improve the effect of plying.

In order to reduce friction of the fiber bundle to be plied, the contact surfaces of the wire guiding holes 121, the first wire guiding holes 311, the second wire guiding holes 321 and the fiber bundle to be plied are made of ceramics, and two ends of each of the wire guiding holes 121, the first wire guiding holes 311 and the second wire guiding holes 321 are designed into arc smooth transition.

In order to reduce the friction of the involution strands, the contact surfaces of the filament collecting hole 331 of the filament collecting tube 33 and the involution strands are also made of ceramics, and the inlet and the outlet of the filament collecting hole 331 are designed into arc smooth transition; the diameter of the filament collecting hole 331 is designed according to actual production so as not to affect the removal of the excessive adhesive by the filament collecting tube 33.

In this embodiment, referring to fig. 4, the yarn winding drum assembly 20 includes a connecting shaft 22 rotatably connected to the mounting frame 10, a baffle 23 and a blocking piece 24 for axially limiting the fiber bundle to be twisted 21, and a rotary damper 25 disposed at one end of the connecting shaft 22, the rotary damper 25 is used for the yarn winding drum assembly 20 to smoothly rotate, the rotary damper 25 is abutted to an end of the connecting shaft 22, the rotary damper 25 is mounted on the stand 11 by a screw, and the fiber bundle to be twisted 21 is formed by winding a fiber bundle to be twisted on a special machine. Like this, under the effect of outside traction force, the silk thread reel subassembly 20 of loading the fibre of waiting to plying book 21 rotates, because the effect of rotary damper 25 makes many fibre bundles of waiting to plying remain comparatively balanced tensile force throughout, has also avoided silk thread reel subassembly 20 uncontrolled rotation.

Further, the wire winding drum assembly 20 further includes two retaining rings 26 sleeved on the connecting shaft 22, a plurality of circumferentially distributed connecting strips 27 connecting the two retaining rings 26, a plurality of circumferentially distributed arc plates 29, and an adjusting nut 210 screwed with the connecting shaft 22; the plurality of arc-shaped plates 29 distributed in the circumferential direction are tightly attached to the fiber roll 21 to be plied, one surface of each arc-shaped plate 29 close to the connecting shaft 22 is hinged with a group of hinged parts 28 along the length direction of the surface, the number of the group of hinged parts 28 is at least two, the group of hinged parts 28 is hinged with one corresponding connecting strip 27, the check ring 26 close to the baffle plate 23 is rigidly connected with the connecting shaft 22, the connecting strip 27 is connected with the check ring 26 close to the baffle plate 23 in a sliding manner, specifically, the connecting strip 27 extends to form an inserting strip 271 smaller than the width of the connecting strip 27, the length of the inserting strip 271 is the moving distance of the connecting strip 27 along the axis of the connecting shaft 22, the other check ring 26 can move along the connecting shaft 22 through an adjusting nut 210 to adjust the distance between the arc-shaped plate 29 and the connecting shaft 22, the purpose of this design is to adjust for the inner diameter of the different fiber rolls 21 to be plied, during adjustment, the adjusting nut 210 is close to one end of the connecting shaft 22, which is far away from the retainer ring 26, the corresponding retainer ring 26 is pulled towards the adjusting nut 210, since the arc plate 29 is hinged with the connecting bar 27 through the hinge bar, the arc plate 29 will be drawn toward the connecting shaft 22 without the restriction of the adjusting nut 210, further reducing the diameter of the round surface formed by the arc-shaped plates 29, sleeving the needed fiber roll 21 to be stranded outside the arc-shaped plates 29, then, by rotating the adjusting nut 210, pushing the corresponding retainer ring 26 toward the middle of the connecting shaft 22, the arc-shaped plates 29 will spread apart, until they abut against the fiber roll to be plied 21, so, silk thread reel subassembly 20 can be applicable to the fiber book 21 of waiting to plying of a plurality of specifications inner circle footpaths, has increased this combined material twisting plying tool head's application scope, and prior art still need change silk thread reel subassembly 20 for the fiber book 21 of waiting to plying of the different inner circle footpaths of adaptation.

The end of the connecting shaft 22 is provided with a lock nut 211 for limiting the axial movement of the wire spool assembly 20.

In one embodiment, one end of each arc plate 29, which is far away from the baffle 23, is provided with a blocking piece 24, the blocking piece 24 is fixedly connected with the arc plate 29 through a screw, so that the blocking piece 24 can be flexibly replaced according to the size of the outer diameter of the fiber roll 21 to be stranded, or the arc plate 29 and the blocking piece 24 are integrally formed in a bending mode, so that the rapid manufacturing can be realized.

In one embodiment, the rotary damper 25 is an electromagnetic damper, so that the resistance of the rotary damper 25 can be automatically adjusted according to production requirements, and the problem that the tension of a plurality of fiber bundles to be plied is unbalanced and the plying effect is influenced due to uneven manual adjustment force of a mechanical damper is avoided.

In this embodiment, please refer to fig. 3, in order to clearly view the internal structure of the filament collecting box 30, the mounting bracket 10 is provided with the connecting rod 13, the first rotating disc 31 and the second rotating disc 32 are coaxially disposed on the connecting rod 13, specifically, the rotation axis of the connecting rod 13 coincides with the rotation center of the mounting bracket 10, when the mounting bracket 10 rotates under the action of the external device, the connecting rod 13 rotates to drive the first rotating disc 31 and the second rotating disc 32 to rotate together, and then a plurality of fiber bundles to be stranded are mutually wound and stranded around a central point in the filament collecting tube 33. Because the yarn collecting box 30 is communicated with the outside, usually, the adhesive in the yarn collecting box 30 is arranged at the lower half part, in order to enable the fiber bundle to be stranded to be adhered to the adhesive, the second yarn guide hole 321 on the rotating disc second 32 is farther away from the connecting rod 13 than the first yarn guide hole 311 on the rotating disc first 31, and therefore, the second yarn guide hole 321 is closer to the bottom of the yarn collecting box 30, the second yarn guide hole 321 can sink into the adhesive when rotating, and the fiber bundle to be stranded can be adhered to the adhesive when passing through the second yarn guide hole 321, and the adhesive is resin adhesive.

In this embodiment, the composite material twisting and stranding tool head further includes a fixing frame 40, one end of the fixing frame 40 is rigidly connected to the filament collecting box 30, the other end of the fixing frame is provided with a mounting member 41, a motor 50 is arranged on the mounting member 41, the motor 50 is in driving connection with the mounting frame 10, specifically, the outer side of the filament collecting box 30 is fixedly connected to the fixing frame 40, preferably, an axis of an output shaft of the motor 50 coincides with a rotation center of the plurality of filament winding drum assemblies 20, when the motor 50 drives the mounting frame 10 to rotate, the plurality of filament winding drum assemblies 20 rotate relative to the filament collecting box 30, and the mounting member 41 is used for being connected to an external device.

Referring to fig. 5, a 3D printing apparatus includes the composite material twisting and plying tool head and a mechanical arm 60 for controlling the movement of the composite material twisting and plying tool head, wherein the mechanical arm 60 drives the composite material twisting and plying tool head to move according to a product to be produced, so that the plied yarn is wound and formed along a mold, and then a subsequent process is performed to produce the product.

This 3D printing apparatus, arm 60 and combined material twisting plying instrument head combine together, can carry out many simultaneously and treat plying tow plying and product shaping, and plying and product shaping go on in an equipment simultaneously, have simplified processing equipment, have improved production efficiency, and because the plied yarn through combined material twisting plying instrument head, the adhesive is more firm, consequently, the product mechanical strength who obtains is higher.

Those of ordinary skill in the art will understand that: the discussion of any embodiment above is meant to be exemplary only, and is not intended to imply that the scope of the application is limited to these examples; within the context of the present application, features from the above embodiments or from different embodiments may also be combined, steps may be implemented in any order, and there are many other variations of different aspects of one or more embodiments in the present application as described above, which are not provided in detail for the sake of brevity.

It is intended that the one or more embodiments of the present application cover all such alternatives, modifications, and variations as fall within the broad scope of the present application. Therefore, any omissions, modifications, substitutions, improvements, and the like that may be made without departing from the spirit and principles of one or more embodiments of the present application are intended to be included within the scope of the present application.

Claims

1. A composite twist stranding tool head, comprising:

a mounting frame (10);

a plurality of thread spool assemblies (20), a plurality of the thread spool assemblies (20) being arranged on the mounting frame (10), the thread spool assemblies (20) being used for arranging fiber rolls (21) to be plied; and

the silk collecting box (30), including rolling disc one (31) and rolling disc two (32) in the silk collecting box (30), a plurality of seal wire hole (311) have been seted up on rolling disc one (31), a plurality of seal wire hole two (321) have been seted up on rolling disc two (32), silk collecting box (30) intercommunication has collection silk pipe (33), and is a plurality of treat that strand woven fiber bundle that silk thread reel subassembly (20) was drawn passes seal wire hole one (311), seal wire hole two (321) and collection silk pipe (33) in proper order to derive after collection silk pipe (33) plying, the binder is equipped with in collection silk box (30), and is a plurality of treat that strand woven fiber bundle bonds and bind in collection silk pipe (33) on the binder when rolling disc one (31).

2. The composite material twisting and stranding tool head according to claim 1, wherein the mounting frame (10) includes a plurality of sets of vertical frames (11) which are uniformly distributed in the circumferential direction, a yarn guide member (12) is connected to each set of vertical frames (11), a yarn guide hole (121) is formed in the yarn guide member (12), a yarn winding drum assembly (20) is rotatably arranged on each set of vertical frames (11), and a fiber bundle to be stranded, which is led out from the yarn winding drum assembly (20), passes through the corresponding yarn guide hole (121).

3. The composite twist plying tool head according to claim 1, wherein the wire reel assembly (20) comprises a connecting shaft (22) rotatably connected to the mounting frame (10), a baffle plate (23) and a catch plate (24) for axially retaining the fiber roll (21) to be plied, and a rotary damper (25) provided at one end of the connecting shaft (22), the rotary damper (25) being used for smooth rotation of the wire reel assembly (20).

4. The composite twist plying tool head according to claim 3, wherein the thread spool assembly (20) further comprises two retaining rings (26) sleeved on the connecting shaft (22), a plurality of circumferentially distributed connecting strips (27) connecting the two retaining rings (26), a plurality of circumferentially distributed arc plates (29), and an adjusting nut (210) screwed with the connecting shaft (22); every arc (29) articulates along self length direction has a set of articulated elements (28), and the quantity of a set of articulated elements (28) is two at least, and a set of articulated elements (28) are articulated with a connecting strip (27) that corresponds, are close to retaining ring (26) and connecting axle (22) rigid connection of baffle (23), connecting strip (27) and retaining ring (26) sliding connection who is close to baffle (23), and another retaining ring (26) can be used for adjusting the distance of arc (29) and connecting axle (22) through adjusting nut (210) removal along connecting axle (22), arc (29) are used for the cover to establish and wait to plying fibre book (21).

5. Composite twist stranding tool head according to claim 4, characterized in that one stop (24) is provided at the end of each curved plate (29) remote from the stop (23).

6. A composite material twist plying tool head according to claim 3, characterized in that said rotary damper (25) is an electromagnetic damper.

7. The composite twist plying tool head according to claim 1, wherein a connecting rod (13) is provided to the mounting bracket (10), and the first rotating disk (31) and the second rotating disk (32) are coaxially provided to the connecting rod (13).

8. The composite material twisting and plying tool head according to claim 1, further comprising a fixing frame (40), wherein one end of the fixing frame (40) is rigidly connected with the filament collecting box (30), the other end of the fixing frame is provided with a mounting piece (41), the mounting piece (41) is provided with a motor (50), and the motor (50) is in driving connection with the mounting frame (10).

9. The composite twist plying tool head according to claim 8, characterized in that the axis of the output shaft of the motor (50) coincides with the center of rotation of the plurality of wire spool assemblies (20).

10. A 3D printing apparatus comprising a composite twist plying tool head according to any one of claims 1 to 9 and a robotic arm (60) to control movement of the composite twist plying tool head.