Fiber placement device

Abstract

The utility model discloses a fiber laying device which comprises an upstream device used for spinning a fiber blank, a drafting roller arranged at the output end of the upstream device, a limiting guide structure and a bearing platform. Wherein the limiting and guiding structure is used for guiding and limiting fiber blanks output by the drafting roller to be downwards output to the bearing platform along a fixed vertical line; the bearing platform can move relative to the limiting guide structure so that the fiber blank can be laid on the bearing platform. According to the application, the limiting guide structure is used for limiting the falling path of the fiber blank body from moving in the space, and the bearing platform capable of moving relative to the limiting guide structure is adopted, so that the position of the fiber blank body falling on the bearing platform can move and change; and it is guaranteed that the fiber blank falls on the bearing platform to be more regular and uniform in fiber placement shape to a great extent, and then the subsequent sintering effect of the fiber blank is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of fiber placement and sintering, in particular to a fiber placement device. Background Art

[0002] Alumina fiber has low thermal conductivity, heating shrinkage and heat capacity, and has good chemical stability. It can be widely used in thermal insulation linings of various heat treatment furnaces in the steel industry, ceramic firing kilns, cracking furnaces in petrochemicals, combustion furnaces, etc., with significant energy-saving effects.

[0003] Before the alumina fiber blank is degreased and sintered, the filamentary fiber blank needs to be laid on the support surface and then sent to the sintering equipment for sintering. However, during the laying process, the fiber blank is prone to irregular and uneven laying shapes, resulting in many fiber bends and knots after sintering. Utility Model Content

[0004] The utility model aims to provide a fiber laying device, which can ensure that the fiber blank is laid regularly and evenly to a certain extent, and avoid the problems of many elbows and knots in the fibers after subsequent sintering.

[0005] In order to solve the above technical problems, the utility model provides a fiber laying device, comprising: an upstream device for spinning a fiber blank, a drafting roller arranged at the output end of the upstream device, a limiting guide structure and a bearing platform;

[0006] Wherein, the position limiting guide structure is used to guide and limit the fiber blank outputted from the drafting roller to be outputted downwardly along a fixed vertical line to the carrying platform;

[0007] The carrying platform can move relative to the limiting guide structure so that the fiber blank can be laid on the carrying platform.

[0008] In an optional embodiment of the present application, the position limiting guide structure includes a wire placing wheel; and the height of the wire placing wheel is greater than the height of the drafting roller;

[0009] The fiber blank outputted by the drafting roller bypasses the laying wheel and vertically hangs down to be outputted to the carrying platform.

[0010] In an optional embodiment of the present application, the limiting guide structure also includes a limiting ring arranged between the laying wheel and the stretching roller; wherein the center point of the limiting ring is located on a straight line connecting a position point on the stretching roller where the fiber blank is led out and a position point on the laying wheel where the fiber blank is introduced.

[0011] In an optional embodiment of the present application, the laying wheel is a pulley with a V-groove surface.

[0012] In an optional embodiment of the present application, the position-limiting guide structure further includes a vertical pipe arranged between the wire placing wheel and the carrying platform;

[0013] The fiber blank outputted by the fiber placement wheel vertically hangs down in the vertical pipe and is outputted to the carrying platform.

[0014] In an optional embodiment of the present application, two laying rollers whose rotation axes are parallel to each other and located in the same horizontal plane are further arranged between the laying wheel and the carrying platform;

[0015] Wherein, the roller gap width between the two fiber placement rollers is not greater than the diameter of the fiber blank; and the rotating axes of the two fiber placement rollers and the rotating axis of the fiber placement wheel are perpendicular to each other;

[0016] The placing roller is used to allow the fiber blank outputted from the placing wheel to vertically droop through the roller gap between the two placing rollers and be outputted to the carrying platform.

[0017] In an optional embodiment of the present application, the supporting platform includes a wire placing disk that supports the fiber blank, and also includes at least a first driving component that drives the wire placing disk to perform circular motion in a horizontal plane, and a second driving component that drives the wire placing disk to perform translational motion along a set straight line direction in the horizontal plane.

[0018] In an optional embodiment of the present application, the wire laying disk includes a bottom wire laying disk, a middle wire laying disk and an upper wire laying disk which are sequentially arranged from bottom to top;

[0019] The first driving assembly is connected to the bottom layer wire placing disk and is used to drive the bottom layer wire placing disk, the middle layer wire placing disk and the upper layer wire placing disk to synchronously perform circular motion in a horizontal plane;

[0020] The second driving assembly includes a transverse driving assembly arranged between the bottom layer wire laying disk and the middle layer wire laying disk, and a longitudinal driving assembly arranged between the middle layer wire laying disk and the upper layer wire laying disk; the transverse driving assembly is used to drive the middle layer wire laying disk and the upper layer wire laying disk to translate synchronously along the transverse direction in the horizontal plane relative to the bottom layer wire laying disk; the longitudinal driving assembly is used to drive the upper layer wire laying disk to translate synchronously along the longitudinal direction in the horizontal plane relative to the middle layer wire laying disk; wherein, the transverse direction and the longitudinal direction are perpendicular to each other.

[0021] In an optional embodiment of the present application, the transverse drive assembly includes a transverse slide rail arranged on the bottom wire laying disk, a slider fixedly connected to the middle wire laying disk and arranged on the transverse slide rail, a transverse servo motor, and a screw connecting the transverse servo motor and the slider;

[0022] The transverse servo motor is used to drive the slider to slide along the transverse slide rail through the screw rod, so as to drive the middle-layer wire placement disk to move along the transverse direction relative to the bottom-layer wire placement disk.

[0023] In an optional embodiment of the present application, the first driving assembly includes a support shaft supporting and connecting the bottom wire laying disk, a servo motor, and a transmission shaft connecting the support shaft and the rotating shaft of the servo motor.

[0024] The fiber laying device provided by the utility model comprises: an upstream device for spinning out a fiber blank, a drafting roller arranged at the output end of the upstream device, a limiting guide structure and a carrying platform; wherein the limiting guide structure is used to guide and limit the fiber blank outputted through the drafting roller to be outputted downwardly along a fixed vertical line to the carrying platform; the carrying platform can be moved relative to the limiting guide structure so that the fiber blank is laid on the carrying platform.

[0025] In the present application, in the process of realizing fiber blank laying, considering that there is a great deal of uncertainty in controlling the movement of the fiber blank in space, low precision in controlling the movement of the fiber blank can easily lead to irregular and uneven shapes of the fiber blank falling on the supporting platform, which ultimately leads to many fiber elbows and knotting problems after the fiber blank is sintered. Therefore, a limiting guide structure is used to limit the falling path of the fiber blank in space from moving. Compared with controlling the fiber blank to lay the fiber on the supporting plane according to the set moving path in space, limiting the movement of the fiber blank is less difficult and easier to achieve; at the same time, in order to avoid the accumulation of fiber blanks in a small area on the supporting platform, a supporting platform that can move relative to the limiting guide structure is further adopted, and the mobility of the supporting platform is used to realize the movable change of the position of the fiber blank falling on the supporting platform; obviously, compared with controlling the movement of the output path of the fiber blank, it is less difficult to control the movement of the supporting platform and it is easier to achieve higher control precision, thereby ensuring to a large extent that the fiber blank falls on the supporting platform. The laying shape is more regular and uniform, which is beneficial to improving the effect of subsequent sintering of the fiber blank. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0027] Figure 1 A schematic diagram of the structure of a fiber placement device provided in an embodiment of the present application;

[0028] Figure 2 A schematic diagram of a portion of the structure of a fiber placement device provided in an embodiment of the present application;

[0029] Figure 3 This is a schematic diagram of the laying shape of the fiber blank provided in an embodiment of the present application. DETAILED DESCRIPTION

[0030] Before degreasing and sintering, the filamentary fiber blanks are laid using an air blowing method to control the fiber blanks to move relative to the load-bearing plane and fall onto the load-bearing plane, so that the fiber blanks are laid flat on the entire load-bearing plane. However, the fiber blanks with small diameter and light weight are easily affected by environmental factors during the mobile falling process, and it is difficult to move and fall along a predetermined path with high precision, which leads to irregular and uneven shapes of the fiber blanks laid on the load-bearing plane. Once sintered, it is easy to have problems with many elbows and knots.

[0031] To this end, the present application provides a fiber laying device, which reduces the difficulty of fiber laying and ensures that the fiber blank is laid regularly and evenly on the supporting platform, which is beneficial to improving the effect of subsequent degreasing and sintering.

[0032] In order to enable those skilled in the art to better understand the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present invention.

[0033] like Figures 1 to 3 As shown, Figure 1 A schematic diagram of the structure of a fiber placement device provided in an embodiment of the present application; Figure 2 A schematic diagram of a portion of the structure of a fiber placement device provided in an embodiment of the present application; Figure 3 This is a schematic diagram of the laying shape of the fiber blank provided in an embodiment of the present application.

[0034] In a specific embodiment of the present application, the fiber placing device may include:

[0035] An upstream device 1 for spinning a fiber blank 10, a drafting roller 2, a position limiting guide structure and a carrying platform 6 arranged at the output end of the upstream device 1;

[0036] The limiting guide structure is used to guide and limit the fiber blank 10 outputted from the drafting roller 2 to be outputted downward along a fixed vertical line to the carrying platform 6;

[0037] The carrying platform 6 can move relative to the limiting guide structure so that the fiber blank 10 can be laid on the carrying platform 6 .

[0038] Reference Figure 1 In this embodiment, after the fiber blank 10 is spun by the upstream device 1, the spun fiber blank 10 is pulled out by the drafting roller 2. Figure 1 In the embodiment shown, two stretching rollers 2 are used, and the fiber blank 10 is output by passing around the two stretching rollers 2 in sequence; it can be understood that in actual applications, the number of stretching rollers 2 is not limited to two, and can be specifically set based on the actual spatial layout of the equipment; even if space permits, the stretching roller 2 can be omitted, and no specific limitation is made in this application.

[0039] After the stretching roller 2 pulls out the fiber blank 10, in order to lay the fiber blank 10, a limiting guide structure and a carrying platform 6 are further provided; wherein, the limiting guide structure is used to limit the fiber blank 10 from falling down to the carrying platform 6 along a fixed vertical line in a drooping manner; that is, as the fiber blank 10 falls toward the carrying platform 6, the fiber blank 10 does not need to move in the horizontal direction in the space; at the same time, the carrying platform 6 can move in the horizontal plane relative to the fiber guiding structure, so that the position point where the fiber blank 10 falls to the carrying platform 6 can change with the movement of the carrying platform 6 without moving in the horizontal direction in the space, that is, the fiber blank 10 can be laid in different carrying areas on the carrying platform 6. It can be seen that in the present embodiment, during the process of laying the fiber blank 10 on the supporting platform 6, the fiber blank 10 is not controlled to move horizontally to fall up and down the supporting platform 6, but a limiting guide structure is used to keep the fiber blank 10 in a fixed position in the horizontal direction and only droop and fall along a fixed vertical line, thereby reducing the difficulty of guiding the output of the fiber blank 10 to a certain extent; at the same time, the supporting platform 6 is moved relative to the limiting guide structure to achieve the laying of the fiber blank 10 on the supporting platform 6, and the shape of the fiber blank 10 laid on the supporting platform 6 is completely determined by the movement mode of the supporting platform 6. Compared with controlling the movement of the fiber blank 10 in the horizontal direction, it is obviously simpler and more accurate to control the movement of the supporting platform 6, thereby better avoiding the problem of irregular and uneven laying shape of the fiber blank 10, and further avoiding the problem of many elbows and knots in the subsequent sintering of the fiber blank 10.

[0040] Based on the above discussion, the position limiting guide structure in this embodiment may have a variety of different implementations. In an optional embodiment of the present application, the fiber guiding structure in the fiber placing device may include:

[0041] The position limiting guide structure includes a wire laying wheel 4; and the height of the wire laying wheel 4 is greater than the height of the drafting roller 2;

[0042] The fiber blank 10 outputted by the drafting roller 2 passes by the laying wheel 4 and vertically hangs down and is outputted to the carrying platform 6 .

[0043] The laying wheel 4 in this embodiment can specifically be a pulley structure. After the fiber blank 10 passes around the laying wheel 4, it can naturally droop and fall vertically downward. In actual applications, the supporting platform 6 can be set directly below the laying wheel 4. When the laying wheel 4 remains in a fixed position in space, the fiber blank 10 can fall toward the supporting platform 6 along a fixed vertical line.

[0044] In addition, during the natural drooping and falling process of the fiber blank 10 from the laying wheel 4, its own gravity provides the power for its falling. Therefore, in order to ensure that the fiber blank 10 has sufficient power during the falling process, in actual applications the height of the laying wheel 4 can be higher than the height of the drawing roller 2, that is, to provide the fiber blank 10 with sufficient falling potential energy.

[0045] In this embodiment, only one laying wheel 4 fixed in space is needed to restrict the fiber blank 10 from falling along a fixed vertical line. There is no need to set up any power device such as an air amplifier. The structure is simple, easy to implement and saves energy.

[0046] In addition, if Figure 2 As shown, in order to prevent the fiber blank 10 from sliding on the surface of the laying wheel 4 and thus affecting its position of falling to the supporting platform 6, in actual application, the laying wheel 4 can adopt a pulley with a V-groove surface on the wheel surface, thereby limiting the fiber blank 10 to the center position of the wheel surface of the laying wheel 4 and preventing it from moving along the rotating axis direction of the laying wheel 4.

[0047] Further optionally, the laying wheel 4 can also adopt a pulley with a wheel surface having multiple V-grooves arranged side by side; thereby, multiple bundles of fiber blanks 10 can be passed around the laying wheel 4 side by side at the same time, and then fall and lay them side by side on the supporting platform 6, that is to say, the laying of multiple bundles of fiber blanks 10 can be achieved synchronously, thereby improving the laying efficiency of the fiber blanks 10 on the supporting platform 6 to a certain extent.

[0048] In addition, it is further considered that the fiber blank 10 itself is made of a relatively light material, and there will inevitably be airflow in the environment that disturbs the fiber blank 10, thereby affecting the position of the fiber blank 10 falling onto the supporting platform 6. To this end, in a specific embodiment of the present application, the position limiting guide structure further includes:

[0049] A limiting ring 3 is arranged between the laying wheel 4 and the drawing roller 2; wherein the center point of the limiting ring 3 is located on the connecting straight line between the position point on the drawing roller 2 where the fiber blank 10 is led out and the position point on the laying wheel 4 where the fiber blank 10 is introduced.

[0050] like Figure 1 As shown, in this embodiment, a limiting ring 3 is arranged between the laying wheel 4 and the drawing roller 2, and the fiber blank 10 passes through the middle of the limiting ring 3, and when the fiber blank 10 between the drawing roller 2 and the laying wheel 4 is kept straight and without deviation, the fiber blank 10 and the limiting ring 3 do not contact each other, and when the fiber blank 10 is offset and moved due to the influence of the ambient airflow, the limiting ring 3 can limit the offset movement of the fiber blank 10 to a certain extent, thereby ensuring the stability of the fiber blank 10 from the drawing roller 2 to the laying wheel 4, and avoiding disturbance to the subsequent laying process.

[0051] In addition, further considering that in the process of the fiber blank 10 falling from the placing wheel 4 to the carrying platform 6, because its lower end is suspended, it may be more easily affected by the ambient airflow; for this reason, in another optional embodiment of the present application, it may further include:

[0052] The position limiting guide structure further includes a vertical pipe 5 arranged between the wire laying wheel 4 and the bearing platform 6;

[0053] The fiber blank 10 outputted by the fiber placement wheel 4 vertically hangs down in the vertical pipe 5 and is outputted to the carrying platform 6 .

[0054] like Figure 1 For ease of understanding, Figure 1 The vertical pipe 5 is shown by a dotted line, and the fiber blank 10 passing through the laying wheel 4 passes through the vertical pipe 5 and falls onto the carrying platform 6. The vertical pipe 5 provides a channel environment without air flow disturbance for the fiber blank 10, thereby effectively avoiding the problem of the fiber blank 10 being deflected due to unexpected and uncontrollable air flow disturbance in the environment during vertical fall, thereby better ensuring the regularity of the shape of the fiber blank 10 laid on the carrying platform 6.

[0055] As described above, in the process of the fiber blank 10 falling from the laying wheel 4 to the carrying platform 6, the power for its falling is mainly provided by the gravity of the fiber blank 10 itself, but further considering that the weight of the fiber blank 10 itself is relatively light, in order to ensure that the fiber blank 10 can be laid on the carrying platform 6 more smoothly, in another optional embodiment of the present application, two laying rollers 7 whose rotating axes are parallel to each other and located in the same horizontal plane are further provided between the laying wheel 4 and the carrying platform 6;

[0056] The roll gap width between the two laying rollers 7 is not greater than the diameter of the fiber blank 10; and the rotating axes of the two laying rollers 7 and the laying wheel 4 are perpendicular to each other;

[0057] The placement roller 7 is used to allow the fiber blank 10 outputted through the placement wheel 4 to vertically droop through the roller gap between the two placement rollers and be outputted to the carrying platform 6 .

[0058] Reference Figure 2, two laying rollers 7 can be arranged below the laying wheel 4, between the laying wheel 4 and the carrying platform 6, so that the fiber blank 10 passes through the roller gap between the two laying rollers 7; at the same time, the roller gap spacing between the two laying rollers 7 is slightly smaller than the diameter of the fiber blank 10, so that the two laying rollers 7 can apply a certain extrusion force to the fiber blank 10; when the two laying rollers rotate in opposite directions, they can simultaneously apply a downward friction force to the fiber blank 10, thereby applying a downward driving force to the fiber blank 10, and also preventing the fiber blank 10 from being pulled back upward due to an accident. It can be understood that the roller gap between the two laying rollers 7 can be equal to the diameter of the fiber blank 10 or slightly smaller by a few millimeters to avoid excessive extrusion of the fiber blank 10.

[0059] In addition, the two laying rollers 7 are not necessarily placed between the laying wheel 4 and the supporting platform 6, but may also be arranged between the drafting roller 2 and the laying roller. There is no specific limitation on this in the present application.

[0060] Based on the above embodiments, various different implementations of the position limiting guide structure are mainly used as examples for description. The specific implementation of the carrying platform 6 is further described in detail below.

[0061] In an optional embodiment of the present application, the carrying platform 6 of the fiber placement device may include:

[0062] The placement disk carrying the fiber blank 10 also includes at least a first driving component for driving the placement disk to perform circular motion in a horizontal plane, and a second driving component for driving the placement disk to perform translational motion along a set straight line direction in the horizontal plane.

[0063] In this embodiment, the fiber blank 10 can directly fall and be laid flat on the wire laying disk, and the wire laying disk can make circular motion under the drive of the first driving component, so that the fiber blank 10 can be laid on the wire laying disk to form a circular ring structure; on this basis, the wire laying disk can also be driven by the second driving component to make translational motion in the horizontal plane along the set straight line direction, so that the fiber blank 10 can be laid on the surface of the wire laying disk to form circular wire rings that are gradually laid flat along the set direction.

[0064] It can be understood that the set straight line direction in the present application can be a single direction or multiple different straight line directions in the horizontal plane, so that the circular wire loop formed by the fiber blank 10 can be laid flat along multiple different straight line directions.

[0065] In another optional embodiment of the present application, the wire laying plate may include a bottom wire laying plate 63, a middle wire laying plate 62 and an upper wire laying plate 61 which are sequentially arranged from bottom to top;

[0066] The first driving assembly is connected to the bottom wire placing disc 63 and is used to drive the bottom wire placing disc 63, the middle wire placing disc 62 and the upper wire placing disc 61 to synchronously perform circular motion in a horizontal plane;

[0067] The second driving assembly includes a transverse driving assembly 66 arranged between the bottom wire laying disk 63 and the middle wire laying disk 62, and a longitudinal driving assembly 65 arranged between the middle wire laying disk 62 and the upper wire laying disk 61; the transverse driving assembly 66 is used to drive the middle wire laying disk 62 and the upper wire laying disk 61 to move synchronously in a transverse direction in a horizontal plane relative to the bottom wire laying disk 63; the longitudinal driving assembly 65 is used to drive the upper wire laying disk 61 to move synchronously in a longitudinal direction in a horizontal plane relative to the middle wire laying disk 62; wherein the transverse direction and the longitudinal direction are perpendicular to each other.

[0068] The wire laying disc in this embodiment is arranged in three layers in the vertical direction, and a first driving component is arranged on the bottom surface of the bottom wire laying disc 63, and the first driving component is used to drive the bottom wire laying disc 63 to make circular motion in the horizontal plane; and because the middle wire laying disc 62 and the upper wire laying disc 61 are both arranged on the bottom wire laying disc 63, it is obvious that the middle wire laying disc 62 and the upper wire laying disc 61 can be driven to make circular motion synchronously with the bottom wire laying disc 63. For details, please refer to Figure 1 ,exist Figure 1 In the illustrated embodiment, the first drive assembly includes a support shaft 641 supporting and connecting the bottom wire laying disc 63, a servo motor, and a transmission shaft 643 connecting the support shaft 641 and the servo motor 643. Figure 1 In the embodiment shown, the rotating shaft of the servo motor 643 is not colinear with the straight line from which the fiber blank 10 falls vertically downward to the upper wire placing disk 61. This can increase the radius of the circular wire loop formed by the fiber blank 10 on the upper wire placing disk 61 to a certain extent, thereby avoiding the problem of elbows in the sintering process of the fiber blank 10.

[0069] In addition, the second driving component in this embodiment may include a transverse driving component 66 connecting the middle wire laying disk 62 and the bottom wire laying disk 63, and the transverse driving component 66 can drive the middle wire laying disk 62 to move in the transverse direction relative to the bottom wire laying disk 63, and the upper wire laying disk 61 is arranged on the middle wire laying disk 62, so that the upper wire laying disk 61 can move in the transverse direction relative to the bottom wire laying disk 63 synchronously with the middle wire laying disk 62.

[0070] Optionally, in another optional embodiment of the present application, the lateral drive assembly may specifically include:

[0071] A transverse slide rail disposed on the bottom wire laying disc 63, a slider fixedly connected to the middle wire laying disc 62 and disposed on the transverse slide rail, a transverse servo motor, and a screw connecting the transverse servo motor and the slider;

[0072] The transverse servo motor is used to drive the slider to slide along the transverse slide rail through the screw rod, so as to drive the middle wire laying disk 62 to move in the transverse direction relative to the bottom wire laying disk 63.

[0073] In this embodiment, a transverse slide rail is provided on the bottom wire laying disk 63, and a slider fixedly connected to the middle wire laying disk 62 is provided on the transverse slide rail. As the slider is driven by the transverse servo motor to slide along the transverse slide rail, the middle wire laying disk 62 and the upper wire laying disk 61 can be synchronously moved in the transverse direction. In addition, a plurality of transverse slide rails can be evenly laid on the bottom wire laying disk 63, and at least two sliders can be provided on each slide rail, so that there are multiple connection points between the middle wire laying disk 62 and the bottom wire laying disk 63, thereby ensuring the stability of the middle wire laying disk 62 moving on the bottom wire laying disk 63.

[0074] In addition, the second drive assembly also includes a longitudinal drive assembly that drives the upper wire laying disk 61 to move in the longitudinal direction relative to the middle wire laying disk 62; the structural principle of the longitudinal drive assembly 65 can be exactly the same as that of the transverse drive assembly 66, and it only needs to rotate the driving direction 90 degrees.

[0075] Based on the above discussion, if Figure 3 As shown, Figure 3 That is, when the first drive component, the transverse drive component and the longitudinal drive component jointly drive the bottom wire laying disk 63, the middle wire laying disk 62 and the upper wire laying disk 61, the fiber blank 10 is laid on the upper surface of the upper wire laying disk 61 to form a pattern.

[0076] Of course, in practical applications, the fiber blank 10 is laid and arranged on the upper laying disk 61 in a manner not limited to Figure 3 The figure shown can control the lateral drive component 66 and the longitudinal drive component 65 to drive the moving direction and distance of the middle wire laying disk 62 and the bottom wire laying disk 63 respectively based on actual needs, so as to realize the laying of different pattern shapes of the fiber blank 10, as long as the thickness of the fiber blank 10 laid on the upper wire laying disk 61 is avoided as much as possible and the uniformity of the laying thickness is ensured.

[0077] To sum up, in the process of realizing fiber blank laying in the present application, considering that there is a great deal of uncertainty in controlling the movement of the fiber blank in space, the low precision of the control of the movement of the fiber blank can easily lead to irregular and uneven shapes of the fiber blank falling on the supporting platform, which ultimately leads to many fiber elbows and knotting problems after the fiber blank is sintered. Therefore, the limiting guide structure is used to limit the falling path of the fiber blank in space from moving. Compared with controlling the fiber blank to lay the fiber on the supporting plane according to the set moving path in space, limiting the movement of the fiber blank is less difficult and easier to achieve; at the same time, in order to avoid the accumulation of fiber blanks in a small area on the supporting platform, a supporting platform that can move relative to the limiting guide structure is further adopted, and the mobility of the supporting platform is used to realize the movable change of the position of the fiber blank falling on the supporting platform; obviously, compared with controlling the movement of the output path of the fiber blank, it is less difficult to control the movement of the supporting platform and it is easier to achieve higher control precision, thereby ensuring to a large extent that the fiber blank falls on the supporting platform. The laying shape is more regular and uniform, which is beneficial to improving the effect of subsequent sintering of the fiber blank.

[0078] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. Moreover, the term "include", "comprise" or any other variant thereof is intended to cover non-exclusive inclusion, so that the process, method, article or equipment that includes a series of elements are inherent to the elements. In the absence of more restrictions, the elements limited by the sentence "comprise one..." do not exclude the presence of other identical elements in the process, method, article or equipment that includes the elements. In addition, the above-mentioned technical solution provided in the embodiment of the present application is consistent with the corresponding technical solution in the prior art in principle, and the part is not described in detail, so as not to repeat too much.

[0079] This article uses specific examples to illustrate the principles and implementation methods of the utility model. The above examples are only used to help understand the method and core ideas of the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. A fiber placing device, characterized in that: include: An upstream device for spinning a fiber blank, a drafting roller, a position limiting guide structure and a bearing platform arranged at the output end of the upstream device; Wherein, the position limiting guide structure is used to guide and limit the fiber blank outputted from the drafting roller to be outputted downwardly along a fixed vertical line to the carrying platform; The carrying platform can move relative to the limiting guide structure so that the fiber blank can be laid on the carrying platform.

2. The fiber placing device according to claim 1, characterized in that: The position limiting guide structure includes a wire placing wheel; and the height of the wire placing wheel is greater than the height of the drafting roller; The fiber blank outputted by the drafting roller bypasses the laying wheel and vertically hangs down to be outputted to the carrying platform.

3. The fiber placing device according to claim 2, characterized in that: The limiting guide structure also includes a limiting ring arranged between the laying wheel and the drawing roller; wherein the center point of the limiting ring is located on a straight line connecting a position point on the drawing roller where the fiber blank is led out and a position point on the laying wheel where the fiber blank is introduced.

4. The fiber placing device according to claim 2, characterized in that: The wire laying wheel is a pulley with a V-shaped groove surface.

5. The fiber placing device according to claim 2, characterized in that: The position limiting guide structure further includes a vertical pipe arranged between the wire laying wheel and the bearing platform; The fiber blank outputted by the fiber placement wheel vertically hangs down in the vertical pipe and is outputted to the carrying platform.

6. The fiber placing device according to claim 2, characterized in that: Two wire laying rollers whose rotation axes are parallel to each other and located in the same horizontal plane are further arranged between the wire laying wheel and the carrying platform; Wherein, the roller gap width between the two fiber placement rollers is not greater than the diameter of the fiber blank; and the rotating axes of the two fiber placement rollers and the rotating axis of the fiber placement wheel are perpendicular to each other; The placing roller is used to allow the fiber blank outputted from the placing wheel to vertically droop through the roller gap between the two placing rollers and be outputted to the carrying platform.

7. The fiber placing device according to claim 1, characterized in that: The supporting platform includes a wire placing disk that supports the fiber blank, and also includes at least a first driving component that drives the wire placing disk to perform circular motion in a horizontal plane, and a second driving component that drives the wire placing disk to perform translational motion along a set straight line direction in the horizontal plane.

8. The fiber placing device according to claim 7, characterized in that: The wire laying plate comprises a bottom wire laying plate, a middle wire laying plate and an upper wire laying plate which are arranged in sequence from bottom to top; The first driving assembly is connected to the bottom layer wire placing disk and is used to drive the bottom layer wire placing disk, the middle layer wire placing disk and the upper layer wire placing disk to synchronously perform circular motion in a horizontal plane; The second drive assembly includes a transverse drive assembly arranged between the bottom layer wire laying disk and the middle layer wire laying disk, and a longitudinal drive assembly arranged between the middle layer wire laying disk and the upper layer wire laying disk; the transverse drive assembly is used to drive the middle layer wire laying disk and the upper layer wire laying disk to synchronously translate in a transverse direction in a horizontal plane relative to the bottom layer wire laying disk; the longitudinal drive assembly is used to drive the upper layer wire laying disk to translate in a longitudinal direction in a horizontal plane relative to the middle layer wire laying disk; wherein the transverse direction and the longitudinal direction are perpendicular to each other.

9. The fiber placing device according to claim 8, characterized in that: The transverse drive assembly includes a transverse slide rail arranged on the bottom wire laying disk, a slider fixedly connected to the middle wire laying disk and arranged on the transverse slide rail, a transverse servo motor, and a screw connecting the transverse servo motor and the slider; The transverse servo motor is used to drive the slider to slide along the transverse slide rail through the screw rod, so as to drive the middle-layer wire placement disk to move along the transverse direction relative to the bottom-layer wire placement disk.

10. The fiber placing device according to claim 8, characterized in that: The first driving assembly includes a support shaft supporting and connecting the bottom wire laying disk, a servo motor, and a transmission shaft connecting the support shaft and the rotating shaft of the servo motor.

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