A three-dimensional weaving device

Abstract

The present application relates to a three-dimensional weaving device, comprising a support mounting plate, a dial device, an exchange device, and a spindle box. Several dial devices are arranged in the same plane on one side of the support mounting plate. Along the circumferential direction of the dial device, several exchange devices are arranged in a ring around one dial device. Several spindle boxes are sequentially connected to the arc-shaped side walls of their dial bodies to form a circular turntable. Two adjacent circular turntables rotate around their respective central axes. The exchange device is located between the spindle boxes of two adjacent circular turntables and is gap-matched with the outer walls of the spindle boxes. The arc-shaped side walls of the two adjacent dial bodies cooperate to form a circular rotation groove. The exchange device drives the spindle boxes to move in the circular rotation groove to achieve the exchange of spindle boxes between two adjacent circular turntables. The present application has the advantages of more flexible arrangement and combination of the whole machine, large yarn carrying capacity per unit area, high weaving density, and yarn interweaving between line groups.

Description

Technical Field

[0001] The present application relates to the technical field of carbon fiber braiding machinery, and in particular to a three-dimensional braiding device. Background Art

[0002] Three-dimensional braided composite materials have attracted widespread attention in the fields of aerospace, automobile, national defense and medicine due to their excellent mechanical properties such as high strength, high modulus, high temperature resistance, corrosion resistance and light weight. They are widely used in the production and manufacturing of key components such as key components of aircraft engines, automobile wheels, medical vascular stents, etc.

[0003] Existing carbon fiber braiding machines mostly use Cartesian matrix and four-tooth dial three-dimensional braiding equipment. Cartesian matrix and four-tooth dial three-dimensional braiding equipment have a limited number of spindles that can be carried, making it difficult to fill the dials with spindles. Due to their fixed unit geometry, the braiding machine required for braiding large structural parts is too large. In addition, the degree of digitization and flexibility are low, and manual control of yarn tightness is required. In addition, due to inherent structural defects, existing braiding machines carry a small number of yarns per unit area, have a low braiding density, and cannot interweave between wire groups, resulting in low braiding efficiency, poor flexibility, and high process costs.

[0004] Therefore, there is an urgent need for a three-dimensional braiding machine with novel structure and better comprehensive performance. Summary of the Invention

[0005] The purpose of this application is to provide a three-dimensional weaving device to solve the problems of existing weaving machines such as being too large in overall size, small yarn carrying capacity per unit area, low weaving density, and inability to interweave thread groups.

[0006] The embodiments of the present application can be implemented through the following technical solutions:

[0007] A three-dimensional knitting device comprises a support mounting plate, a dial device, an exchange device, and a spindle box, wherein a plurality of the dial devices are arranged in the same plane on one side of the support mounting plate, the exchange device is arranged between two adjacent dial devices, and along the circumferential direction of the dial devices, the plurality of exchange devices are arranged in a ring around one dial device;

[0008] The dial device includes a dial body and a driving device. Along the circumference of the dial body, a plurality of spindle boxes are sequentially connected to the arc-shaped side walls of the dial body to form a circular turntable. Under the driving action of the driving device, two adjacent circular turntables rotate around their respective central axes.

[0009] The exchange device is located between the spindle boxes of the two adjacent circular turntables, and is gap-matched with the outer wall of the spindle box. The arc-shaped side walls of the two adjacent dial bodies cooperate to form a circular rotating groove. The exchange device rotates in the circular rotating groove to drive the spindle box to move, thereby realizing the exchange of spindle boxes between the two adjacent circular turntables.

[0010] Furthermore, the support mounting plate includes a plurality of bases and fixing blocks, a center hole is provided at the center of the base, and the dial device is connected to the center hole;

[0011] The outer edge of the base is provided with a plurality of semicircular grooves, and the plurality of semicircular grooves are arranged in a ring shape with the central hole as the center of the circle. Both ends of the semicircular grooves are base connection ends, and the fixing block is connected to the base connection end. The two adjacent bases are connected to the same plane through the fixing block, and the semicircular grooves of the two adjacent bases cooperate to form a accommodating groove, and the exchange device is connected to the accommodating groove.

[0012] Furthermore, six semicircular arc grooves are evenly arranged on the outer edge of the base, and every six semicircular arc grooves are evenly distributed in a ring shape along the circumference of one of the center holes, so that every six of the exchange devices are arranged in a ring shape around one of the dial devices.

[0013] Furthermore, the output end of the driving device is connected to the bottom of the dial body, and the dial body is a hexagonal star-shaped turntable structure with a wire outlet hole in the middle. The driving device drives the dial body to perform step angle movement at an angle of 60°. After each rotation, the spindle box connected to the side wall of the dial body corresponds to the exchange device.

[0014] Furthermore, the driving device includes a main body seat, a vertical bird body, a first driving motor, and a transmission mechanism, wherein the vertical bird body is connected to the bottom center of the dial body, and the vertical bird body is connected to the first driving motor through the transmission mechanism;

[0015] Along the circumferential direction of the vertical bird body, the top of the vertical bird body is evenly divided into a number of driven tooth lobes, and a shift groove is provided between the several driven tooth lobes. The circles formed when the top of the vertical bird body and the shift column of the transmission mechanism rotate around their respective rotation centers intersect, and the two intersection points are respectively located at the entrances and exits of the two shift grooves on the surface of the transmission mechanism.

[0016] Furthermore, the vertical bird main body includes a vertical bird connecting shaft and a groove wheel. The groove wheel is a driven structure in the shape of a hexagonal flower gear located at the top of the vertical bird main body. Along the circumferential direction of the groove wheel, the side wall of the groove wheel is evenly distributed with six mating grooves arranged in sequence. A shift groove is provided between every two of the mating grooves. The shift groove is a long groove that passes through the upper and lower parts and is arranged along the radial direction of the groove wheel. The end of the shift groove that is away from the axis of the groove wheel is an open entrance and exit. The shift groove divides the circumference of the groove wheel into six parts, so that the groove wheel forms a flower-shaped driven dial with six driven tooth petals.

[0017] Furthermore, the first drive motor drives the transmission mechanism to rotate, and the transmission mechanism includes a transmission gear disc and a shift post. The transmission gear disc is a circular rotating disc, and the shift post is arranged on the top of the transmission gear disc, and the transmission gear disc is located below the groove wheel, and the entrances and exits of one of the driven gear lobes and the shift slots on both sides are located on the table surface of the transmission gear disc, and the circles formed when the groove wheel and the shift post rotate around their respective rotation centers intersect, and the arc length of the groove wheel intersecting the transmission gear disc is equal to one-sixth of the circumference of the groove wheel, and the two intersection points are respectively located at the entrances and exits of the two shift slots locked on the table surface of the transmission gear disc, and are adjacent to the circumferential edge of the transmission gear disc.

[0018] Furthermore, the spindle box and the dial body are connected by a mutually cooperating magnetic method. The spindle box is provided with a second wire outlet hole on the top and a box body for accommodating yarn inside. The inner wall of the spindle box is provided with a magnetic block accommodating groove. The middle part of the arc-shaped slider wall of the dial body is connected to a first magnetic block that cooperates with the magnetic block in the magnetic block accommodating groove.

[0019] Furthermore, the exchange device is located between the spindle boxes of two adjacent circular turntables and is gap-matched with the outer wall of the spindle box;

[0020] The exchange device rotates around its central axis in the circular rotating groove, and drives the spindle box to rotate and displace in the circular rotating groove. When the exchange device rotates a specified angle, the exchange device is rotated into place by relying on the magnetic attraction between the spindle box and the arc-shaped slider wall, and the spindle boxes are exchanged between two adjacent dial devices.

[0021] Furthermore, the exchange device includes an exchange arm and an operating drive device, the exchange arm is located at the circular rotating groove, the bottom of the exchange arm is rotatably connected to the driving end of the operating drive device, and a partition plate with an arc-shaped wall section is provided at the rotation axis of the exchange arm.

[0022] The three-dimensional knitting device provided by the embodiments of the present application has at least the following beneficial effects:

[0023] 1. The spindle box in the present application is connected to the dial body by magnetic attraction, and together they constitute an independent dial device. Each dial device can work independently, and the supporting mounting plate adopts a plurality of bases and fixed blocks to cooperate and connect, so that the position of each dial device installed on the supporting mounting plate can be selected according to the requirements of the weaving structural parts. Multiple independent dial devices can be arranged and combined arbitrarily, so that the overall shape of the three-dimensional weaving equipment is no longer limited to the inherent circular or matrix shape, and can meet the weaving needs of various shapes of structural parts, and has the advantages of more flexible arrangement and combination of the whole machine and high flexibility of the weaving structural parts.

[0024] 2. The middle part of each dial body of the present application can accommodate yarn, and the sides of the dial body can accommodate spindle boxes. Each spindle box contains yarn, which is the three-dimensional weaving equipment with the largest yarn carrying capacity per unit area. The two adjacent dial bodies can exchange each other's spindle boxes through an exchange device, so that the yarns can be interwoven between the line groups, thereby improving the weaving density. It has the advantages of large yarn carrying capacity per unit area, high weaving density, and better strength of weaved structural parts, and is of great value to improving the forming of key composite materials in aerospace.

[0025] 3. The spindle box and the dial body in the present application are matched with each other by magnetic attraction, and are matched with the operating drive device of the exchange device to realize that the two adjacent dial bodies can accurately exchange the spindle boxes. On the one hand, the operating drive device makes up for the rotation error of the motor-driven exchange device. On the other hand, when the exchange device drives the spindle box to rotate to the specified position, the spindle box can be accurately rotated to the specified position through the magnetic attraction force between the spindle box and the dial body. The overall structure has the advantage of precise rotational displacement, and the use of magnetic attraction increases the firmness and tightness of the connection, avoids the sliding friction between the spindle box and the dial body during rotation, and reduces the energy loss during motor driving. Therefore, it has the advantages of precise rotation position, cost saving, and strong practicality.

[0026] 4. The bottom of each dial body of the present application is connected to a driving device to drive the rotation of the dial body. The driving device realizes precise transmission through mechanical transmission that cooperates with each other. On this basis, only an ordinary small motor needs to be installed to accurately drive the angle of each rotation of the dial body, replacing the existing dial driven by the control motor. It avoids the problems of excessive temperature of the motor rotor of the control motor due to the dense structure of the three-dimensional weaving equipment, demagnetization during the driving process, and complex control procedures. Therefore, by adopting the driving device of the present application, the dial body has the advantages of precise rotation position, low failure rate, simple operation, and strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1A schematic diagram of the overall structure of a three-dimensional knitting device provided in this embodiment;

[0028] Figure 2 Schematic diagram of the partial structure of the support mounting plate in this embodiment;

[0029] Figure 3 This is a partial structural diagram of the dial device connected to the support mounting plate in this embodiment;

[0030] Figure 4 、 Figure 5 Schematic diagram of the overall structure of the driving device in this embodiment at different viewing angles;

[0031] Figure 6 This is a schematic structural diagram of the vertical bird main body in this embodiment;

[0032] Figure 7 This is a schematic diagram of the structure of the switching device in this application;

[0033] Figure 8 Schematic diagram of the structure of the spindle box in this embodiment;

[0034] Figure 9 Schematic diagram of the internal structure of the driving device in this embodiment;

[0035] Figure 10 This is a schematic diagram of the internal structure of the operation drive device in this embodiment;

[0036] Figure 11 This is an example to illustrate the rotation and displacement process of the motor rocker in this embodiment.

[0037] Numbers in the figure

[0038] 1-base; 11-center hole; 12-semicircular groove; 13-base connection end; 2-fixing block; 3-dial body; 30-first outlet hole; 31-hexagonal upper top wall; 32-hexagonal lower bottom wall; 33-arc-shaped slider wall; 34-first magnetic block; 4-driving device; 41-main body; 42-vertical bird body; 421-vertical bird connecting shaft; 4211-first connecting shaft seat; 4212-support shaft; 423-groove wheel; 4230-driven tooth petal; 4231-dial groove; 4232-matching slide groove; 43-first driving motor, 431-driving gear; 44-transmission mechanism; 441-transmission gear Disc; 442-transmission gear; 443-connecting support; 444-positioning slider; 445-shifting post; 5-spindle box; 51-magnetic block accommodating groove; 52-second wire outlet hole; 6-exchange device; 61-exchange arm; 611-support base; 612-baffle; 613-deformation notch; 614-ball bearing; 62-operation drive device; 620-accommodating housing; 621-rotating wheel; 6211-rotating wheel groove; 6212-motor rocker; 6213-sensor; 622-exchange motor; 623-positioning block; 6231-positioning connection groove; 6232-center connection through hole; 6233-ladder groove;

[0039] A-first end face; B-second end face. DETAILED DESCRIPTION

[0040] Hereinafter, the present application will be further described based on preferred embodiments with reference to the accompanying drawings.

[0041] In addition, various components in the drawings are enlarged (thickened) or reduced (thinned) to facilitate understanding, but this practice is not intended to limit the scope of protection of this application.

[0042] Words importing the singular include the plural and vice versa.

[0043] In the description of the embodiments of the present application, it should be noted that if the terms "upper", "lower", "inner", "outer" and the like indicate an orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or are the orientation or positional relationship in which the products of the embodiments of the present application are usually placed when in use, they are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, in the description of the present application, in order to distinguish different units, words such as first and second are used in this specification, but these are not limited by the order of manufacture, nor can they be understood as indicating or implying relative importance. Their names may be different in the detailed description and claims of the present application.

[0044] The vocabulary in this specification is used to illustrate the embodiments of the present application, but is not intended to limit the present application. It should also be noted that, unless otherwise clearly specified and limited, the terms "disposed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, a direct connection, an indirect connection through an intermediate medium, or a communication between the two components. For those skilled in the art, the specific meanings of the above terms in this application can be specifically understood.

[0045] Figure 1 This is a schematic diagram of the overall structure of a three-dimensional knitting device provided in this embodiment, as shown in FIG. Figure 1 As shown, a three-dimensional knitting device includes a support mounting plate, a dial device, a spindle box 5, and an exchange device 6. Several dial devices are arranged in the same plane on one side of the support mounting plate, and the exchange device 6 is arranged between two adjacent dial devices. Along the circumferential direction of the dial device, several exchange devices 6 are arranged in a ring around one dial device.

[0046] The dial device includes a dial body 3 and a driving device 4. The output end of the driving device 4 is connected to the bottom of the dial body 3. The dial body 3 is a hexagonal turntable with a wire outlet hole at the center of the top. Along the circumference of the dial body 3, a plurality of spindle boxes 5 are sequentially connected to the arc-shaped side walls of the dial body 3 to form a circular turntable. Under the driving action of the driving device 4, two adjacent circular turntables rotate around their respective central axes.

[0047] The exchange device 6 is located between the spindle boxes 5 of the two adjacent circular turntables, and is fitted with a gap in the outer wall of the spindle box 5. The arc-shaped side walls of the two adjacent dial bodies 3 cooperate to form a circular rotating groove. The exchange device 6 rotates in the circular rotating groove to drive the spindle box 5 to move, thereby realizing the exchange of the spindle box 5 between the two adjacent circular turntables.

[0048] Specifically, Figure 2 This is a schematic diagram of the partial structure of the support mounting plate in this embodiment, as shown in FIG. Figure 2 As shown, the support mounting plate includes a plurality of bases 1 and fixing blocks 2. A center hole 11 is provided at the center of the base 1, and the center hole 11 is used for mounting a dial device.

[0049] In some preferred embodiments, the outer edge of the base 1 is provided with a plurality of semicircular grooves 12, and the plurality of semicircular grooves 12 are arranged in a ring shape with the central hole 11 as the center, and both ends of the semicircular grooves 12 are base connection ends 13, the fixed block 2 is connected to the base connection end 13, the two adjacent bases 1 are connected to the same plane through the fixed block 2, and the semicircular grooves 12 of the two adjacent bases 1 cooperate to form a accommodating groove for connecting the exchange device 6, so that the plurality of dial devices arranged in the same plane are adjacent to each other, and the exchange device 6 is provided between every two adjacent dial devices.

[0050] In some preferred embodiments, six semicircular grooves 12 are evenly arranged on the outer edge of the base 1, and every six semicircular grooves 12 are evenly distributed along the circumference of one of the center holes 11, so that every six of the switching devices 6 are evenly distributed in a ring shape around one of the dial devices to adapt to the hexagonal shape of the dial device.

[0051] In some preferred embodiments, the fixing block 2 is connected to the base 1 through mutually cooperating sockets and plug-in columns, and several bases 1 and the fixing blocks 2 are connected as a whole to achieve the connection stability between the fixing block 2 and the base 1, and the shape of the support mounting plate can be changed by selective splicing to meet the usage requirements in various scenarios.

[0052] In some preferred embodiments, the end angle of the base connection end 13 is 120°, the fixed block 2 is hexagonal, and the ends of every three base connection ends 13 are matched and connected to the center of one of the fixed blocks 2. The three base connection ends 13 respectively occupy the three vertex corners of the fixed block 2, and the other three vertex corners of the fixed block 2 are respectively located in the three accommodating grooves. On the one hand, it is used to increase the connection stability between the base 1 and the fixed block 2. On the other hand, it is convenient to support the connection of the exchange device 6 through the other three vertex corners of the fixed block 2, so as to enhance the stability of the overall connection.

[0053] Figure 3 This is a partial structural diagram of the dial device connected to the support mounting plate in this embodiment, as shown in FIG. Figure 3 As shown, the driving device 4 of the dial device is connected to the center hole 11 , and the output end of the driving device 4 is connected to the dial body 3 . Under the driving action of the driving device 4 , the dial body 3 rotates above the center hole 11 .

[0054] In some preferred embodiments, the dial body 3 is a hexagonal turntable structure with a wiring space inside, and six spindle boxes 5 are evenly distributed on the side walls of the dial body 3. The driving device 4 drives the dial body 3 to perform step angle movement at an angle of 60°, so that the dial body 3 can accurately rotate 60° each time. After each rotation, the spindle boxes 5 connected to the side wall of the dial body 3 can still be matched with the exchange device 6, which is used to realize the self-rotation of the dial body 3 to weave the yarn, and can also accurately control the rotation position, so that the spindle boxes 5 on the side walls of two adjacent dial bodies 3 can be exchanged through the exchange device 6, so as to realize the yarn interweaving between the line groups and improve the weaving density.

[0055] Specifically, the dial body 3 includes a hexagonal upper top wall 31, a hexagonal lower bottom wall 32, and an arcuate slider wall 33. The center of the hexagonal upper top wall 31 is provided with a first wire outlet hole 30, and the center of the hexagonal lower bottom wall 32 is connected to the output end of the driving device 4. The arcuate slider wall 33 is an arcuate side wall. The number of the arcuate slider walls 33 is set. Along the circumferential direction of the dial body 3, several arcuate slider walls 33 are set between the hexagonal upper top wall 31 and the hexagonal lower bottom wall 32, so that the dial body 3 forms a turntable structure in which wiring can be routed.

[0056] In some preferred embodiments, along the circumference of the dial body 3, the hexagonal upper top wall 31 and the hexagonal lower bottom wall 32 are hexagonal panels with six arc-shaped groove walls evenly distributed on the side walls and connected in sequence. The arc-shaped slider wall 33 is a side wall arranged between the hexagonal upper top wall 31 and the hexagonal lower bottom wall 32. The number of the arc-shaped slider walls 33 is six, and the six arc-shaped slider walls 33 are adapted to the arc-shaped groove walls, so that the dial body 3 forms a hexagonal star-shaped turntable structure with wiring inside.

[0057] The driving device 4 includes a main body 41, a vertical bird body 42, a first driving motor 43, and a transmission mechanism 44. The vertical bird body 42 is connected to the bottom center of the dial body 3, and the vertical bird body 42 is connected to the first driving motor 43 through the transmission mechanism 44.

[0058] Along the circumferential direction of the vertical bird body 42, the top of the vertical bird body 42 is evenly divided into a number of driven gear petals 4230, and a shifting groove 4231 is provided between the several driven gear petals 4230. The circles formed when the top of the vertical bird body 42 and the shifting post 445 of the transmission mechanism 44 rotate around their respective rotation centers intersect, and the two intersection points are respectively located at the entrances and exits of the two shifting grooves 4231 on the table of the transmission mechanism 44, and as the table of the transmission mechanism 44 rotates, the shifting post 445 performs a reciprocating displacement motion in the groove of the shifting groove 4231 to drive the groove wheel 423 to rotate.

[0059] In some preferred embodiments, the top of the vertical bird body 42 is evenly divided into six driven gear petals 4230, and the top of the vertical bird body 42 is in the shape of a hexagonal gear, which also means that each angle of the top of the hexagonal gear in the vertical bird body 42 is 60°, so as to cooperate with the transmission mechanism 44 to achieve precise rotation.

[0060] Figure 4 、 Figure 5 is a schematic diagram of the overall structure of the driving device in this embodiment at different viewing angles, such as Figure 4 、 Figure 5 As shown, the top of the vertical bird body 42 is fixedly connected to the center of the hexagonal lower bottom wall 32, and the bottom end is rotatably connected to the main body seat 41. The first drive motor 43 is fixedly connected to one side of the main body seat 41. The driving end of the first drive motor 43 is connected to the transmission mechanism 44. The transmission mechanism 44 cooperates with the vertical bird body 42. Under the driving action of the first drive motor 43, the transmission mechanism 44 intermittently moves a corner of the top of the hexagonal gear in the vertical bird body 42, so that the top of the vertical bird body 42 is rotated at an angle of 60°, thereby driving the angle of each rotation of the dial body 3 to be accurately controlled at 60°.

[0061] Specifically, Figure 6 FIG. 1 is a schematic structural diagram of the vertical bird main body in this embodiment. Figure 6 As shown, the vertical bird main body 42 includes a vertical bird connecting shaft 421 and a groove wheel 423. The vertical bird connecting shaft 421 is rotatably connected to the bottom of the groove wheel 423 and is clamped above the main body seat 41. The vertical bird connecting shaft 421 is a stepped shaft, wherein the thick shaft with a relatively large diameter is the first connecting shaft seat 4211, and the first connecting shaft seat 4211 is clamped above the main body seat 41. The thin shaft with a relatively small diameter is the supporting shaft 4212, and the supporting shaft 4212 is rotatably connected to the axis center of the groove wheel 423.

[0062] The sheave 423 is a driven structure in the shape of a hexagonal gear located at the top of the vertical bird body 42. Along the circumferential direction of the sheave 423, the side wall of the sheave 423 is evenly distributed with six mating grooves 4232 arranged in sequence. A shifting groove 4231 is provided between every two mating grooves 4232. The shifting groove 4231 is a long groove that passes through from top to bottom and is arranged along the radial direction of the sheave 423. The end of the shifting groove 4231 facing away from the axis of the sheave 423 is an open entrance and exit. The shifting groove 4231 divides the circumference of the sheave 423 into six parts, so that the sheave 423 forms a flower-shaped driven dial with six driven teeth 4230, which is used to cooperate with the transmission mechanism 44 to rotate at a step angle of 60°.

[0063] In some preferred embodiments, Figure 5 As shown, the first drive motor 43 drives the transmission mechanism 44 to rotate. The transmission mechanism 44 includes a transmission gear plate 441 and a shift post 445. The transmission gear plate 441 is a circular rotating disk. The shift post 445 is arranged on the top of the transmission gear plate 441. The transmission gear plate 441 is located below the groove wheel 423, and the entrances and exits of one of the driven gear petals 4230 and the shift slots 4231 on both sides are located on the table of the transmission gear plate 441. The circles formed when the groove wheel 423 and the shift post 445 rotate around their respective rotation centers intersect. The arc length of the groove wheel 423 intersecting the transmission gear plate 441 is equal to one-sixth of the circumference of the groove wheel 423. The two intersection points are respectively located at the entrances and exits of the two shift slots 4231 on the table of the transmission gear plate 441 and adjacent to the circumferential edge of the transmission gear plate 441, so as to realize the rotation of the transmission mechanism 44 and drive the vertical bird body 42 to rotate at a 60° step angle.

[0064] Specifically, the driving end of the first driving motor 43 is connected to a driving gear 431, and the transmission mechanism 44 also includes a transmission gear 442. The transmission gear 442 is fixedly connected to the center of the bottom end of the transmission toothed disc 441. The transmission toothed disc 441 is installed between the first connecting shaft seat 4211 and the groove wheel 423, and the entrances and exits of one of the driven tooth lobes 4230 and the shifting grooves 4231 on both sides are located on the table surface of the transmission toothed disc 441. The transmission gear 442 is engaged with the driving gear 431 for transmission. Under the driving action of the first driving motor 43, the transmission mechanism 44 rotates.

[0065] In some preferred embodiments, the transmission gear disc 441 is tangent to the supporting shaft 4212 and is located between the first connecting shaft seat 4211 and the groove wheel 423. The transmission gear 442 is connected to the center of the bottom end of the transmission gear disc 441. The 431 is engaged with the transmission gear 442 for transmission, and is used to drive the transmission gear disc 441 to rotate through the first driving motor 43, and avoids the transmission gear disc 441 from moving up and down during rotation.

[0066] In some preferred embodiments, the transmission mechanism 44 also includes a connecting support portion 443, which is fixedly connected to the upper surface of the main seat 41. A mounting hole is provided in the middle of the connecting support portion 443, and the rotating shaft at the bottom of the transmission gear 442 is accommodated in the mounting hole in the middle of the connecting support portion 443, which is used to avoid lateral movement during rotation and increase the stability of the transmission between the transmission gear 442 and the driving gear 431.

[0067] In some preferred embodiments, Figure 4 、 Figure 5 As shown, the transmission mechanism 44 also includes a locking slider 444, and the locking slider 444 and the shifting post 445 are respectively arranged on both sides of the top of the transmission gear plate 441, and the shifting post 445 is a column for cooperating with the displacement in the shifting groove 4231. The locking slider 444 is a circular disk with a notch, and the arc center of the locking slider 444 is concentric with the center of the transmission gear plate 441. The arc outer edge of the locking slider 444 is tangentially matched with any one of the matching sliding grooves 4232, and is used to lock the position of the groove wheel 423 through the locking slider 444, so that only when the shifting post 445 rotates into the shifting groove 4231 and drives the groove wheel 423 to rotate, the locking slider 444 releases the lock on the groove wheel 423.

[0068] Specifically, the circles formed when the groove wheel 423 and the shift post 445 rotate around their respective rotation centers intersect, and the arc length of the groove wheel 423 intersecting the transmission gear plate 441 is equal to one-sixth of the circumference of the groove wheel 423. The two intersection points are respectively located at the entrances and exits of the two shift grooves 4231 locked on the table surface of the transmission gear plate 441, and are adjacent to the circumferential edge of the transmission gear plate 441, so that the shift post 445 can rotate to the entrance and exit of the shift groove 4231 to drive the groove wheel 423 to rotate, and as the table surface of the transmission mechanism 44 rotates, the shift post 445 performs a reciprocating displacement motion in the groove of the shift groove 4231.

[0069] When the shifting post 445 moves to the entrance and exit of the shifting slot 4231 again, the groove wheel 423 rotates at an angle of 60°. At this time, the shifting post 445 rotates out of the shifting slot 4231, and the arc-shaped outer edge of the positioning slider 444 is tangentially matched with the matching slot 4232. The positioning slider 444 is tangential to the matching slot 4232 and rotates freely.

[0070] When the groove wheel 423 stops rotating and is locked in position by the positioning slider 444, the groove wheel 423 can accurately rotate at an angle of 60 degrees, which has the advantage of accurate rotation without the use of a stepper motor and largely avoids rotation errors.

[0071] Figure 7 This is a schematic diagram of the structure of the switching device in this application, such as Figure 7 As shown, the exchange device 6 is installed in a receiving groove surrounded by two opposite semicircular grooves 12, or is accommodated in one semicircular groove 12. The exchange device 6 is clearance-matched with the dial device so as not to interfere with the rotation of the dial device.

[0072] The exchange device 6 includes an exchange arm 61 and an operating drive device 62. The exchange arm 61 is located at the circular rotating groove. The bottom of the exchange arm 61 is rotatably connected to the driving end of the operating drive device 62. A partition plate with an arc-shaped wall section is provided at the rotation axis of the exchange arm 61. The partition plate is located between the spindle boxes 5 of the two adjacent circular turntables and is gap-matched with the outer wall of the spindle box 5. The two sides of the top of the exchange arm 61 are used to place the spindle boxes 5 respectively.

[0073] In some preferred embodiments, the spindle box 5 and the dial body 3 are connected by a mutually cooperating magnetic attraction. Figure 8 FIG. 5 is a structural diagram of the spindle box 5 in this embodiment. Figure 8 As shown, the spindle box 5 is provided with a second wire outlet hole 52 on the top, and has a box body for accommodating yarn inside. The inner wall of the spindle box 5 is provided with a magnetic block accommodating groove 51, and the magnetic block accommodating groove 51 is used to install the magnetic block.

[0074] Correspondingly, the middle part of the arc-shaped slider wall 33 is also connected to a first magnetic block 34 that cooperates with the magnetic block, so that under the driving action of the running drive device 62, the exchange arm 61 drives the spindle box 5 to rotate in the circular rotating groove. When the exchange arm 61 rotates a specified angle, it relies on the magnetic attraction between the spindle box 5 and the dial device to drive the exchange device 6 to rotate into place, thereby realizing the exchange of the spindle boxes 5 between the two adjacent dial devices to achieve yarn interweaving.

[0075] Among them, it should be noted that the rotation into position referred to in this application is: when the exchange arm 61 rotates 180 degrees and the spindle box 5 and the dial device are connected together again by magnetic attraction, it means that the exchange device 6 is rotated into position.

[0076] By adopting this connection method, on the one hand, the energy consumption of the exchange device 6 during rotation is reduced, so that the exchange device only needs to be rotated a certain angle to rely on the magnetic attraction between the spindle box 5 and the arc-shaped slider wall 33 to achieve connection in place; on the other hand, it helps the spindle box 5 after the exchange position to be accurately connected to the arc-shaped slider wall 33, reducing the phenomenon of position deviation due to rotation and exchange of positions; in addition, it also effectively avoids the sliding friction between the spindle box 5 and the arc-shaped slider wall 33 when the exchange device 6 drives the spindle box 5 to rotate and exchange positions, thereby reducing mechanical loss.

[0077] Specifically, such as Figure 7 As shown, the exchange arm 61 includes a support base 611 and a baffle 612. The support base 611 is a circular base. The support base 611 cooperates with the arc-shaped groove wall of the hexagonal lower bottom wall 32. The baffle 612 is arranged in the middle of the support base 611. The baffle 612 is a partition plate parallel to the axis of the dial body 3. The baffle 612 divides the support base 611 into two accommodating areas for placing the spindle boxes 5 separately and independently.

[0078] In some preferred embodiments, ball bearings 614 are respectively provided on both side walls of the top of the baffle 612, and the ball bearings 614 respectively cooperate with the arc-shaped groove walls of the hexagonal upper top wall 31. When the exchange arm 61 rotates to exchange the spindle box 5, the ball bearings 614 contact the arc-shaped groove walls of the hexagonal upper top wall 31 to provide rotation resistance and support force, so that the exchange arm 61 can rotate smoothly in the vertical direction.

[0079] In some preferred embodiments, the top of the baffle 612 also includes a deformation groove 613 arranged in the vertical direction, and the number of the deformation grooves 613 is two, and the two deformation grooves 613 are respectively adjacent to the ball bearing 614, so that when the ball bearing 614 contacts the arc groove wall of the hexagonal upper top wall 31, the deformation groove 613 can provide an elastic deformation margin for the top of the exchange arm 61, which is used to adaptively adjust the tightness of the fit between the exchange arm 61 and the dial body 3.

[0080] In some preferred embodiments, the bottom of the exchange arm 61 is connected to the operating drive device 62 , and the bottom of the support base 611 is accommodated in the accommodating shell 620 of the operating drive device 62 and connected to the driving end of the operating drive device 62 .

[0081] Specifically, Figure 9 Schematic diagram of the internal structure of the driving device in this embodiment, Figure 10 FIG. 1 is a schematic diagram of the internal structure of the driving device in this embodiment. Figure 9 、 Figure 10 As shown, the operating drive device 62 includes a rotating wheel 621, an exchange motor 622 and a positioning block 623. The rotating wheel 621 is connected to the bottom of the support base 611, and the rotating wheel 621 is connected to the exchange motor 622 through the positioning block 623. The positioning block 623 is connected to the accommodating shell 620 and is used to position the rotating wheel 621 and the exchange motor 622 in the accommodating shell 620.

[0082] The exchange arm 61 is rotatably connected to the driving end of the exchange motor 622 through the rotating wheel 621. The rotating wheel 621 has a movable margin of rotational displacement relative to the exchange motor 622, so that after the exchange motor 622 drives the rotating wheel 621 to rotate to the specified position, and then accurately rotates it into position under the action of the magnetic attraction between the spindle box 5 and the dial device, the exchange arm 61 can drive the rotating wheel 621 to rotate without being hindered by the exchange motor 622.

[0083] Specifically, the positioning block 623 is a disc that is adapted to the inner wall of the accommodating shell 620. The positioning block 623 includes a ladder groove 6233. The ladder groove 6233 is a groove located on the outside of the positioning block 623. Accordingly, the inner wall of the accommodating shell 620 is provided with a protrusion that is adapted to the ladder groove 6233, which is used to connect the positioning block 623 to the inner wall of the accommodating shell 620 through mutually cooperating threads and screw holes or clips and slots to achieve positioning.

[0084] The positioning block 623 further includes a central connecting through hole 6232 , through which the driving shaft of the switching motor 622 is connected to the rotating wheel 621 for driving the rotating wheel 621 to rotate.

[0085] In some preferred embodiments, the positioning block 623 also includes a positioning connection groove 6231, and the shell of the driving end of the exchange motor 622 is accommodated in the positioning connection groove 6231 and connected to the screw hole through mutually cooperating threads to better fix the position of the exchange motor 622.

[0086] In some preferred embodiments, the rotating wheel 621 includes a rotating wheel groove 6211 and a motor rocker 6212. The rotating wheel groove 6211 is a double-fan-shaped "8" groove arranged at the bottom of the rotating wheel 621. The motor rocker 6212 is in the shape of an "I". The motor rocker 6212 is a swinging rod accommodated in the rotating wheel groove 6211. The rotating wheel 621 is connected to the exchange motor 622 through the motor rocker 6212. The motor rocker 6212 has a movable margin of rotational displacement in the rotating wheel groove 6211, which is used to compensate for the rotation error of the exchange motor 622.

[0087] For example, taking the left movement direction of the motor swing rod 6212 as an example, when the switching motor 622 moves along Figure 11 When driven in the direction indicated by the middle arrow, when the motor rocker 6212 abuts against the first end face A of the rotating wheel groove 6211, the exchange motor 622 drives the motor rocker 6212 to rotate, thereby driving the rotating wheel 621 to rotate in the clockwise direction shown in the figure. When the exchange motor 622 stops rotating, the rotating wheel 621 can be driven to rotate by an external force (magnetic force or manual adjustment force). At this time, the motor rocker 6212 is displaced to the second end face B adjacent to the rotating wheel groove 6211, so that even if the rotation position of the exchange motor 622 is not accurate, the rotating wheel 621 can still be driven to rotate to the specified position by external force, thereby driving the exchange arm 61 to rotate to the specified position.

[0088] In some preferred embodiments, the middle part of the motor rocker arm 6212 is located at the center of the rotating wheel groove 6211, and the middle part of the motor rocker arm 6212 is connected to the driving end of the exchange motor 622. Under the driving action of the exchange motor 622, the motor rocker arm 6212 rotates in the rotating wheel groove 6211. When the motor rocker arm 6212 is displaced to the groove wall of the rotating wheel groove 6211, the motor rocker arm 6212 pushes the rotating wheel 621 to rotate, thereby driving the exchange arm 61 to rotate.

[0089] In some preferred embodiments, sensors 6213 are respectively provided at both ends of the motor rocker 6212 for identifying the rotation position of the motor rocker 6212 in the rotating wheel groove 6211 , thereby facilitating determination of whether the motor rocker 6212 is rotated into position.

[0090] In some preferred embodiments, the critical position between the spindle box 5 and the dial device that can cooperate through magnetic attraction is set as a designated position, the exchange motor 622 sets the rotation cycle and rotation duration through the control program, and the exchange motor 622 is set to be able to drive the exchange arm 61 to drive the spindle box 5 to rotate to the designated position. Thereafter, the two spindle boxes 5 are rotated and exchanged positions through the magnetic attraction between the spindle box 5 and the dial device, so as to save energy and reduce costs, while ensuring that the spindle box 5 after the exchange can be accurately positioned on the outer wall of the dial device.

[0091] In some preferred embodiments, it is assumed that the exchange arm 61 drives the spindle box 5 to rotate at an angle a. When 160° < a < 180°, the magnetic attraction between the spindle box 5 and the dial device is better coordinated.

[0092] The above is a detailed introduction to the specific implementation methods of the present application. For those skilled in the art, several improvements and modifications can be made to the present application without departing from the principles of the present application. These improvements and modifications also fall within the scope of protection of the claims of the present application.

Claims

1. A three-dimensional weaving device, characterized in that: include: A support mounting plate, a dial device, an exchange device (6), and a spindle box (5), wherein a plurality of the dial devices are arranged in the same plane on one side of the support mounting plate, the exchange device (6) is arranged between two adjacent dial devices, and along the circumferential direction of the dial device, a plurality of the exchange devices (6) are arranged in a ring around one of the dial devices; The dial device comprises a dial body (3) and a driving device (4); along the circumference of the dial body (3), a plurality of spindle boxes (5) are sequentially connected to the arc-shaped side walls of the dial body (3) to form a circular turntable; under the driving action of the driving device (4), two adjacent circular turntables rotate around their respective central axes; The exchange device (6) is located between the spindle boxes (5) of the two adjacent circular turntables and is gap-matched with the outer wall of the spindle box (5). The arc-shaped side walls of the two adjacent dial bodies (3) cooperate to form a circular rotation groove. The exchange device (6) rotates in the circular rotation groove to drive the spindle box (5) to move, thereby realizing the exchange of the spindle boxes (5) between the two adjacent circular turntables. The support mounting plate comprises a plurality of bases (1) and fixed blocks (2); a center hole (11) is provided at the center of the base (1), and the dial device is connected to the center hole (11); The outer edge of the base (1) is provided with a plurality of semi-circular grooves (12), and the plurality of semi-circular grooves (12) are arranged in a ring shape with the central hole (11) as the center of the circle. Both ends of the semi-circular grooves (12) are base connection ends (13), and the fixing block (2) is connected to the base connection end (13). The two adjacent bases (1) are connected to the same plane through the fixing block (2), and the semi-circular grooves (12) of the two adjacent bases (1) cooperate to form a receiving groove, and the exchange device (6) is connected to the receiving groove; Six semicircular arc grooves (12) are evenly arranged on the outer edge of the base (1), and each of the six semicircular arc grooves (12) is evenly distributed in an annular shape along the circumference of one of the central holes (11), so that each of the six exchange devices (6) is arranged in an annular shape around one of the dial devices; The spindle box (5) and the dial body (3) are connected by a mutually cooperating magnetic attraction method, the spindle box (5) is provided with a second thread outlet hole (52) at the top, and has a box body for accommodating yarn inside, the inner side wall of the spindle box (5) is provided with a magnetic block accommodating groove (51), and the middle part of the arc-shaped side wall of the dial body (3) is connected with a first magnetic attraction block (34) that cooperates with the magnetic block in the magnetic block accommodating groove (51); The exchange device rotates around its central axis in the circular rotating groove, and drives the spindle box (5) to rotate and displace in the circular rotating groove. When the exchange device rotates a specified angle, the exchange device (6) is rotated into place by relying on the magnetic attraction between the spindle box (5) and the arc-shaped side wall of the dial body (3), and the spindle boxes (5) are exchanged between two adjacent dial devices.

2. A three-dimensional knitting device according to claim 1, characterized in that: The output end of the driving device (4) is connected to the bottom of the dial body (3). The dial body (3) is a hexagonal star-shaped turntable structure with a wire outlet hole in the middle. The driving device (4) drives the dial body (3) to perform step angle movement at an angle of 60°. After each rotation, the spindle box (5) connected to the side wall of the dial body (3) corresponds to the exchange device (6).

3. The three-dimensional knitting device according to claim 2, characterized in that: The driving device (4) includes a main body seat (41), a vertical bird body (42), a first driving motor (43), and a transmission mechanism (44); the vertical bird body (42) is connected to the bottom center of the dial body (3); and the vertical bird body (42) is connected to the first driving motor (43) via the transmission mechanism (44); Along the circumferential direction of the vertical bird body (42), the top of the vertical bird body (42) is evenly divided into a plurality of driven tooth lobes (4230), and a shifting groove (4231) is provided between the plurality of driven tooth lobes (4230). The top of the vertical bird body (42) and the shifting column (445) of the transmission mechanism (44) respectively rotate around their respective rotation centers to form a circle that intersects, and the two intersection points are respectively located at the entrances and exits of the two shifting grooves (4231) on the table of the transmission mechanism (44).

4. The three-dimensional knitting device according to claim 3, characterized in that: The vertical bird body (42) includes a vertical bird connecting shaft (421) and a groove wheel (423). The groove wheel (423) is a driven structure in the shape of a hexagonal flower gear located at the top of the vertical bird body (42). Along the circumferential direction of the groove wheel (423), the side wall of the groove wheel (423) is evenly distributed with six matching grooves (4232) arranged in sequence. A shifting groove (4231) is provided between every two matching grooves (4232). The shifting groove (4231) is a long groove that passes through from top to bottom and is provided in the radial direction of the groove wheel (423). The end of the shifting groove (4231) facing away from the axis of the groove wheel (423) is an opening-shaped entrance and exit. The shifting groove (4231) divides the circumference of the groove wheel (423) into six parts, so that the groove wheel (423) forms a flower-shaped driven dial with six driven tooth petals (4230).

5. The three-dimensional knitting device according to claim 4, characterized in that: The first drive motor (43) drives the transmission mechanism (44) to rotate. The transmission mechanism (44) includes a transmission gear disc (441) and a shifting post (445). The shifting post (445) is arranged on the top of the transmission gear disc (441). The transmission gear disc (441) is located below the groove wheel (423), and the entrances and exits of one of the driven teeth (4230) and the shifting slots (4231) on both sides thereof are located on the table surface of the transmission gear disc (441). The circles formed when the groove wheel (423) and the shifting post (445) rotate around their respective rotation centers intersect. The arc length of the groove wheel (423) intersecting the transmission gear disc (441) is equal to one-sixth of the circumference of the groove wheel (423). The two intersection points are respectively located at the entrances and exits of the two shifting slots (4231) locked on the table surface of the transmission gear disc (441).

6. The three-dimensional knitting device according to claim 1, characterized in that: The exchange device (6) comprises an exchange arm (61) and an operating drive device (62), wherein the exchange arm (61) is located at the circular rotating groove, the bottom of the exchange arm (61) is rotatably connected to the driving end of the operating drive device (62), and a partition plate with an arc-shaped wall section is provided at the rotation axis of the exchange arm (61).

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