Compression device and wire placing head

Abstract

The present invention provides a compacting device and a fiber placement head, relating to the technical field of fiber placement heads. The compacting device comprises a first bracket and a second bracket arranged in a stacked manner, with a passage formed between the first bracket and the second bracket for the passage of the fiber bundle. A first rotating portion is rotatably disposed on the first bracket about a first direction, with the portion of the first rotating portion facing the second bracket exposed within the passage. A second rotating portion is rotatably disposed on the second bracket about a first direction, with the portion of the second rotating portion facing the first bracket exposed within the passage. The unidirectional rotation of the first rotating portion on the first bracket prevents the fiber bundle from generating tension and causing the bundle to be pulled back, effectively resolving technical problems existing in the prior art.

Description

Technical Field

[0001] The present invention relates to the technical field of wire placing heads, and in particular to a pressing device and a wire placing head. Background Art

[0002] In the modern aviation industry, the use of composite materials has become a key means of improving aircraft performance. Compared to traditional metal materials, composites offer a higher strength-to-weight ratio, improved corrosion resistance and fatigue performance, and enhanced thermal expansion properties. Consequently, they are widely used in aircraft structures such as fuselages, wings, and tails. Automated Fiber Placement (AFP), as an efficient and precise composite molding method, is becoming a mainstream technology in the aviation manufacturing industry.

[0003] In the prior art, tension is generated in the tow during the laying process, causing the tow to be pulled back, thereby affecting the length of each cut tow.

[0004] Therefore, further solutions are needed for the above technical problems. Summary of the Invention

[0005] The purpose of the present invention is to provide a pressing device and a wire placing head to alleviate the technical problems existing in the above-mentioned related technologies.

[0006] The present invention provides a pressing device, comprising:

[0007] A first bracket and a second bracket are stacked, wherein a passage for the filament bundle body to pass through is formed between the first bracket and the second bracket, and the first bracket is used to connect to the frame body of the filament placement head;

[0008] a first rotating portion, rotatably disposed on the first bracket about a first direction, wherein a portion of the first rotating portion facing the second bracket is exposed in the channel;

[0009] a second rotating portion, rotatably disposed on the second bracket about the first direction, wherein a portion of the second rotating portion facing the first bracket is exposed in the channel;

[0010] The first rotating part and the second rotating part have a first working state and a second working state. In the first working state, the first rotating part and the second rotating part exposed in the channel rotate toward each other to drive the filament bundle body passing through the channel to move forward. In the second working state, the first rotating part exposed in the channel remains stationary to block the filament bundle body passing through the channel from moving forward.

[0011] The first direction is perpendicular to a stacking direction of the first bracket and the second bracket.

[0012] Optionally, in the aforementioned pressing device, the first bracket has a first hollow along the second direction, and at least one group of recessed portions is provided on a side surface of the first bracket opposite to the second bracket, each group of recessed portions includes two grooves, the two grooves are arranged along the third direction, and the first hollow is located between the two grooves;

[0013] The second bracket has a second hollowing out along the second direction, the first hollowing out is opposite to the second hollowing out, and the second bracket is provided with at least one group of protrusions corresponding to at least one group of recessed parts on the side surface opposite to the first bracket, the protrusions and the recessed parts corresponding one to one in the second direction, each group of protrusions includes two protrusions, the two protrusions are arranged along the third direction, and the second hollowing out is located between the two protrusions, the protrusion located on the same side of the first hollowing out and the second hollowing out is embedded in the groove to enclose a receiving space with two openings opposite to each other along the third direction, and the two corresponding receiving spaces along the third direction form a channel, the part of the first rotating part facing the second bracket is exposed in the channel through the first hollowing out, and the part of the second rotating part facing the first bracket is exposed in the channel through the second hollowing out; the second direction is the stacking direction of the first bracket and the second bracket, and the third direction is perpendicular to the first direction and the second direction.

[0014] Optionally, in the aforementioned pressing device, the first rotating part includes:

[0015] A rotating shaft, with pressure rollers at both ends of the rotating shaft facing each other, and the pressure rollers are connected to the first bracket;

[0016] at least one rotating wheel, the rotating wheel being rotatably connected to the rotating shaft via a one-way bearing;

[0017] Part of the rotating wheel facing the second bracket is exposed through the first hollowing, the number of the rotating wheels is the same as the number of the filament bundle bodies and corresponds one to one, and the axis extension direction of the rotating shaft is the same as the first direction.

[0018] Optionally, in the aforementioned pressing device, the second rotating part includes:

[0019] At least one rotating wheel is rotatably connected to the second hollow structure, and the number of the rotating wheels is the same as the number of the tow bodies and corresponds one to one.

[0020] Optionally, the aforementioned pressing device further comprises:

[0021] A support frame, the support frame having a straight section and a raised section, the raised section being arranged on the straight section, and the straight section and the raised section being perpendicular to each other, the straight section being connected to the second bracket, the raised section having an end facing away from the straight section passing through the second hollow, and one end of the raised section being rotatably connected to the rotating wheel;

[0022] The number of the rotating wheels is the same as the number of the supporting frames and corresponds one to one.

[0023] Optionally, the aforementioned pressing device further comprises:

[0024] A driving mechanism, wherein an output end of the driving mechanism is drivingly connected to the second bracket, and the driving mechanism is used to be connected to the wire placement head frame body;

[0025] The straight section is movably connected to the second bracket, and the driving mechanism drives the second bracket to move closer to or away from the direction of the wire placement head frame body to adjust the spacing distance between the rotating wheel and the rotating wheel, so that the rotating wheel cooperates with the rotating wheel to press the filament bundle body or release the compression of the filament bundle body.

[0026] Optionally, in the aforementioned pressing device, the driving mechanism includes:

[0027] Two clamping cylinders, each of which is provided with a mounting seat at the cylinder end, the mounting seat is used to be connected to the wire laying head frame body, the telescopic end of each clamping cylinder is connected to the second bracket, and the second rotating part is located between the two clamping cylinders.

[0028] Optionally, in the aforementioned pressing device, one end of each of the straight sections is hinged to the second bracket, and the other end of each of the straight sections is connected to the second bracket via a bolt;

[0029] Wherein, a spring is provided between the bolt and a side of the corresponding straight section facing away from the second bracket.

[0030] Optionally, in the aforementioned pressing device, an area enclosed by a cross section of each of the grooves along the first direction gradually increases along the third direction.

[0031] On the other hand, the present application provides a wire placement head, comprising:

[0032] The clamping device includes:

[0033] A first bracket and a second bracket are stacked, wherein a passage for the filament bundle body to pass through is formed between the first bracket and the second bracket, and the first bracket is used to connect to the frame body of the filament placement head;

[0034] a first rotating portion, rotatably disposed on the first bracket about a first direction, wherein a portion of the first rotating portion facing the second bracket is exposed in the channel;

[0035] a second rotating portion, rotatably disposed on the second bracket about the first direction, wherein a portion of the second rotating portion facing the first bracket is exposed in the channel;

[0036] The first rotating part and the second rotating part have a first working state and a second working state. In the first working state, the first rotating part and the second rotating part exposed in the channel rotate toward each other to drive the filament bundle body passing through the channel to move forward. In the second working state, the first rotating part exposed in the channel remains stationary to block the filament bundle body passing through the channel from moving forward.

[0037] The first direction is perpendicular to a stacking direction of the first bracket and the second bracket.

[0038] By means of the above technical solution, the compacting device and the wire placement head of the present application have at least the following advantages:

[0039] The clamping device provided in the embodiment of the present application performs unidirectional rotation on the first bracket through the first rotating part, which can avoid the phenomenon that the yarn bundle generates tension and causes the yarn bundle to be pulled back, and effectively solves the technical problems existing in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in related technologies, the following briefly introduces the drawings required for use in the specific embodiments or related technical descriptions. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0041] Figure 1 A schematic structural diagram of a first perspective view of a pressing device provided by an embodiment of the present invention;

[0042] Figure 2 A schematic structural diagram of a second perspective of a pressing device provided by an embodiment of the present invention;

[0043] Figure 3 A schematic structural diagram of a first rotating portion of a pressing device provided by an embodiment of the present invention from a first perspective;

[0044] Figure 4 A schematic structural diagram of a first rotating portion of a pressing device provided by an embodiment of the present invention from a second perspective;

[0045] Figure 5 A schematic structural diagram of a second bracket of a pressing device provided in an embodiment of the present invention;

[0046] Figure 6 A schematic structural diagram of a second rotating portion of a pressing device provided by an embodiment of the present invention from a first perspective;

[0047] Figure 7 A schematic structural diagram of a second rotating portion of a pressing device provided by an embodiment of the present invention from a second perspective;

[0048] Figure 8 A schematic structural diagram of a support frame of a pressing device provided by an embodiment of the present invention from a first perspective;

[0049] Figure 9 A schematic structural diagram from a second perspective of a support frame of a pressing device provided in an embodiment of the present invention.

[0050] icon:

[0051] 1. First bracket; 2. Second bracket; 3. Channel; 4. First rotating part; 41. Rotating shaft; 42. Rotating wheel; 43. One-way bearing; 44. Pressure roller; 45. One-way bearing spacer; 46. Compression washer; 47. Retaining ring; 5. Second rotating part; 51. Rotating wheel; 52. Rotating shaft; 53. Compression rotating wheel spacer; 6. First hollow; 7. Second hollow; 8. Groove; 9. Protrusion; 10. Support frame; 11. Clamping cylinder; 12. Bolt; 13. Spring. DETAILED DESCRIPTION

[0052] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0053] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0054] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0055] Example 1

[0056] like Figure 1-Figure 2 As shown, the pressing device proposed in the embodiment of the present invention includes:

[0057] A first bracket 1 and a second bracket 2 are stacked, wherein a channel 3 for the filament bundle to pass through is formed between the first bracket 1 and the second bracket 2, and the first bracket 1 is used to connect to the frame body of the filament placement head;

[0058] a first rotating portion 4 rotatably disposed on the first bracket 1 about a first direction, wherein a portion of the first rotating portion 4 facing the second bracket 2 is exposed in the channel 3;

[0059] a second rotating portion 5 rotatably disposed on the second bracket 2 about the first direction, wherein a portion of the second rotating portion 5 facing the first bracket 1 is exposed in the channel 3;

[0060] The first rotating part 4 and the second rotating part 5 have a first working state and a second working state. In the first working state, the first rotating part 4 and the second rotating part 5 exposed in the channel 3 rotate toward each other to drive the filament bundle body passing through the channel 3 to move forward. In the second working state, the first rotating part 4 exposed in the channel 3 remains stationary to block the filament bundle body passing through the channel 3.

[0061] The first direction is perpendicular to the stacking direction of the first bracket 1 and the second bracket 2 .

[0062] Specifically, the first bracket 1 and the second bracket 2 are connected in a detachable manner, for example, by means of bolts 12. The first bracket 1 is also used to be detachably connected to the wire placement head frame body, for example, by means of bolts 12. A first rotating portion 4 is provided on the first bracket 1, and a second rotating portion 5 is provided on the second bracket 2. The first rotating portion 4 is opposite to the second rotating portion 5. The portion of the first rotating portion 4 facing the second bracket 2 is exposed in the channel 3, and the portion of the second rotating portion 5 facing the first bracket 1 is exposed in the channel 3. The channel 3 is used In the channel 3 for the yarn bundle body to pass through, in a first working state, the first rotating part 4 and the second rotating part 5 exposed in the channel 3 rotate towards each other to drive the yarn bundle body passing through the channel 3 to move forward; in a second working state, the first rotating part 4 exposed in the channel 3 remains stationary to block the movement of the yarn bundle body passing through the channel 3, wherein the movement direction of the yarn bundle body in the channel 3 is perpendicular to the first direction. For example: if the channel 3 is longitudinal, that is, from top to bottom or from bottom to top, then the first direction is transverse, that is, from left to right or from right to left.

[0063] The clamping device provided in the embodiment of the present invention can avoid the phenomenon that the yarn bundle will generate tension and cause the yarn bundle to be pulled back by performing unidirectional rotation on the first bracket 1 through the first rotating part 4, thereby effectively solving the technical problems existing in the prior art.

[0064] like Figure 1-Figure 5 As shown, in a specific implementation, the first bracket 1 has a first hollow 6 along the second direction, and at least one group of recessed portions is provided on a side surface of the first bracket 1 opposite to the second bracket 2, each group of recessed portions includes two grooves 8, the two grooves 8 are arranged along the third direction, and the first hollow 6 is located between the two grooves 8;

[0065] The second bracket 2 has a second hollowing out 7 along the second direction, the first hollowing out 6 is opposite to the second hollowing out 7, and the second bracket 2 is provided with at least one group of protrusions corresponding to at least one group of recessed parts on the side surface opposite to the first bracket 1, and the protrusions correspond to the recessed parts one by one in the second direction, and each group of protrusions includes two protrusions 9, the two protrusions 9 are arranged along the third direction, and the second hollowing out 7 is located between the two protrusions 9, and the protrusions 9 located on the same side of the first hollowing out 6 and the second hollowing out 7 are embedded in the groove 8 to enclose a receiving space with two openings opposite to each other along the third direction, and the two corresponding receiving spaces along the third direction form a channel 3, the part of the first rotating part 4 facing the second bracket 2 is exposed in the channel 3 through the first hollowing out 6, and the part of the second rotating part 5 facing the first bracket 1 is exposed in the channel 3 through the second hollowing out 7; the second direction is the stacking direction of the first bracket 1 and the second bracket 2, and the third direction is perpendicular to the first direction and the second direction.

[0066] Specifically, the first hollow 6 is used to expose the first rotating part 4 mounted on the first bracket 1 toward the second bracket 2, so that the first rotating part 4 can rotate in conjunction with the second rotating part 5 to drive the filament bundle body passing through the channel 3 to move forward.

[0067] The second hollow 7 is used to expose the second rotating part 5 mounted on the second bracket 2 toward the first bracket 1, so that the second rotating part 5 can rotate in conjunction with the first rotating part 4 to drive the tow body passing through the channel 3 to move forward.

[0068] Two grooves 8 are provided on the surface opposite to the first bracket 1 and the second bracket 2. The two grooves 8 are located on both sides of the first hollow 6 and are arranged along the third direction. Figure 4 As shown in the figure, the third direction is the vertical direction in the figure, and the two grooves 8 located in the same vertical direction are a group of recessed portions. At least one group of recessed portions is provided on the first bracket 1. If the number of recessed portions is two or more, the multiple groups of recessed portions are arranged along the first direction (such as Figure 4 As shown in the figure, the first direction is the transverse direction in the figure) and the number of groups of the recessed portions is adapted to the number of groups of the filament bundle body and corresponds one to one.

[0069] Two protrusions 9 are provided on the surface of the second bracket 2 opposite to the first bracket 1. The two protrusions 9 are located on both sides of the second hollow 7, and the two protrusions 9 are arranged along the third direction. The two protrusions 9 located in the same vertical direction are a group of protrusions. At least one group of protrusions is provided on the second bracket 2. If the number of protrusions is two or more, the multiple groups of protrusions are arranged at intervals along the first direction, wherein the number of groups of protrusions is the same as the number of groups of recessed portions, and they correspond one to one.

[0070] A group of recessed portions and a group of raised portions are adapted and plugged in, that is, a protrusion 9 is inserted into a groove 8. The following is an example of a group of recessed portions and a group of raised portions plugged in.

[0071] When the first bracket 1 is connected to the second bracket 2, the protrusion 9 located on the same side of the first hollow 6 and the second hollow 7 is inserted into the groove 8 on the same side to form a accommodating space with two openings facing each other along the third direction. The two accommodating spaces are connected by the first hollow 6 and the second hollow 7, and a channel 3 is formed for the filament bundle body to pass through. The number of channels 3 is the same as the number of filament bundle bodies and corresponds one to one. The part of the first rotating part 4 facing the second bracket 2 is exposed in the channel 3 through the first hollow 6, and the part of the second rotating part 5 facing the first bracket 1 is exposed in the channel 3 through the second hollow 7.

[0072] like Figure 1-Figure 4 as well as Figure 6-Figure 7 As shown, in a specific implementation, the first rotating part 4 includes:

[0073] A rotating shaft 41, with pressure rollers 44 at both ends of the rotating shaft 41 facing each other, and the pressure rollers 44 are connected to the first bracket 1;

[0074] at least one rotating wheel 42, the rotating wheel 42 being rotatably connected to the rotating shaft 41 via a one-way bearing 43;

[0075] The portion of the rotating wheel 42 facing the second bracket 2 is exposed through the first hollow 6 , the number of the rotating wheels 42 is the same as the number of the tow bodies and corresponds one to one, and the axial extension direction of the rotating shaft 41 is the same as the first direction.

[0076] Specifically, the present application provides an embodiment of the first rotating part 4 , that is, the first rotating part 4 includes a rotating shaft 41 and at least one rotating wheel 42 .

[0077] Pressure rollers 44 are provided at both ends of the rotating shaft 41 . The pressure rollers 44 are detachably connected to the rotating shaft 41 via bolts 12 . Each pressure roller 44 is detachably connected to the first support via bolts 12 .

[0078] The axial extension direction of the rotating shaft 41 is the same as the first direction. If the number of rotating wheels 42 is two or more, the multiple rotating wheels 42 are arranged in sequence along the axial extension direction of the rotating shaft 41. The number of rotating wheels 42 is the same as the number of the filament bundle bodies and corresponds one to one.

[0079] The rotating wheel 42 is unidirectionally connected to the rotating shaft 41 via a one-way bearing 43. The unidirectional rotation of the rotating wheel 42 achieves a locking and limiting effect, preventing the tow from generating tension and causing tow retraction, effectively resolving the technical problems existing in the prior art. The rotating wheel 42 passes through the first hollow 6 in the first bracket 1, so that the portion of the rotating wheel 42 facing the second bracket 2 is exposed within the channel 3.

[0080] Each rotating wheel 42 is provided with a one-way bearing 43 spacer on both sides along the axial extension direction of the rotating shaft 41. The one-way bearing 43 spacer can protect the rotating wheel 42. When there are multiple rotating wheels 42, the one-way bearing 43 spacer can make the distance between each rotating wheel 42 consistent with the distance between the filament bundle bodies.

[0081] A compression washer 46 is provided between each rotating wheel 42 and the corresponding one-way bearing 43 to fill the gap between the rotating wheel 42 and the one-way bearing 43 and distribute the load.

[0082] Each rotating wheel 42 is provided with a retaining ring 47 on both sides along the axial extension direction of the rotating shaft 41. The retaining ring 47 is used to fix the one-way bearing 43 corresponding to the rotating wheel 42 to prevent the one-way bearing 43 from falling off in the corresponding rotating wheel 42.

[0083] In a specific implementation, the second rotating part 5 includes:

[0084] At least one rotating wheel 51 is rotatably connected to the second hollow portion 7 , and the number of the rotating wheels 51 is the same as the number of the filament bundle bodies and corresponds one to one.

[0085] Specifically, the rotating wheel 51 is rotatably connected to the second hollow 7 via the rotating shaft 52. The rotating wheel 51 can also be rotatably connected to the second hollow 7 via other auxiliary structures. In addition, the portion of the rotating wheel 51 facing the first bracket 1 is exposed through the second hollow 7.

[0086] The number of the running wheels 51 matches the number of the rotating wheels 42 and corresponds one to one. When the number of the running wheels 51 is two or more, the arrangement of the running wheels 51 is the same as that of the rotating wheels 42.

[0087] When the rotating wheel 51 cooperates with the rotating wheel 42 in the first working state, the rotating wheel 42 exposed in the channel 3 and the rotating wheel 51 corresponding to the rotating wheel 42 rotate in opposite directions to drive the yarn bundle body passing through the channel 3 to move forward; when in the second working state, the rotating wheel 42 exposed in the channel 3 maintains a stationary state to block the movement of the yarn bundle body passing through the channel 3.

[0088] like Figure 1-Figure 2 as well as Figure 8-Figure 9 As shown, in a specific implementation, it also includes:

[0089] A support frame 10, the support frame 10 having a straight section and a raised section, the raised section being arranged on the straight section and being perpendicular to each other, the straight section being connected to the second bracket 2, the raised section having an end facing away from the straight section passing through the second hollow 7, and one end of the raised section being rotatably connected to the rotating wheel 51;

[0090] The number of the rotating wheels 51 is the same as the number of the supporting frames 10 and corresponds one to one.

[0091] Specifically, the present application provides a method for installing the rotating wheel 51 , that is, the rotating wheel 51 is installed on the second bracket 2 through the support frame 10 .

[0092] A rotating wheel 51 is adapted to a supporting frame 10, and each supporting frame 10 has a straight section and a raised section, wherein the straight section is in the shape of an "I" and the raised section is in the shape of an "I". The straight section is connected to the raised section, and the straight section and the raised section are perpendicular to each other. The connection between the raised section and the straight section is located in the middle of the straight section, and the end of the raised section away from the straight section is rotatably connected to the rotating wheel 51.

[0093] The straight section is connected to a side of the second bracket 2 facing away from the first bracket 1 along the third direction, so that the end of the raised section facing away from the straight section passes through the second hollow 7 and faces the corresponding rotating wheel 42 .

[0094] A rotating shaft 52 is provided at one end of the raised section, facing away from the straight section. A rotating wheel 51 is sleeved on the rotating shaft 52 and rotatably connected to the rotating shaft 52. The rotating shaft 52 and the raised section are connected by a removable means, such as bolts 12. The raised section and the straight section are cast into a one-piece structure using a one-piece casting process. A spacer for the rotating wheel 51 is provided between the rotating wheel 51 and one end of the corresponding raised section. This spacer primarily serves to reduce wear between the rotating wheel 51 and the support frame 10.

[0095] like Figure 1-Figure 2 As shown, in a specific implementation, it also includes:

[0096] A driving mechanism, wherein the output end of the driving mechanism is drivingly connected to the second bracket 2, and the driving mechanism is used to be connected to the wire placement head frame body;

[0097] In which, the straight section is movably connected to the second bracket 2, and the driving mechanism drives the second bracket 2 to move closer to or away from the direction of the wire laying head frame body to adjust the spacing distance between the rotating wheel 42 and the rotating wheel 51, so that the rotating wheel 42 cooperates with the rotating wheel 51 to press the filament bundle body or release the compression of the filament bundle body.

[0098] Specifically, the support frame 10 is movably connected to the second bracket 2, and the driving mechanism is connected to the second bracket 2. When the driving mechanism drives the second bracket 2 to retract in the direction of the first bracket 1, the support frame 10 moves in the direction away from the first bracket 1, so that the rotating wheel 51 and the corresponding rotating wheel 42 press the yarn bundle body between the two; when the driving mechanism drives the second bracket 2 to stretch in the direction of the first bracket 1, the support frame 10 and the second bracket 2 are close to each other to release the state in which the rotating wheel 51 and the corresponding rotating wheel 42 press the yarn bundle body between the two. This structural design enables the device to control the yarn bundle body well and avoid the problem of position change of the yarn bundle body.

[0099] like Figure 1-Figure 2 As shown, in a specific implementation, the driving mechanism includes:

[0100] Two clamping cylinders 11, each of which is provided with a mounting seat at the cylinder end of the clamping cylinder 11, and the mounting seat is used to be connected to the wire laying head frame body, the telescopic end of each clamping cylinder 11 is connected to the second bracket 2, and the second rotating part 5 is located between the two clamping cylinders 11.

[0101] Specifically, the present application provides an embodiment of a drive mechanism, namely, the drive mechanism includes: two clamping cylinders 11, each clamping cylinder 11 is connected to the wire laying head frame body through a mounting base, and the connection method can be detachable, for example, connected by bolts 12, the output ends of the two clamping cylinders 11 are connected to the second bracket 2, the output ends of the two clamping cylinders 11 are symmetrical with respect to the second hollow 7 of the second bracket 2, and the telescopic ends of the two clamping cylinders 11 move synchronously. The telescopic end of each clamping cylinder 11 is detachably connected to the second bracket 2, for example, by bolts 12, plug-in connection, or inlay connection. This structural design can facilitate subsequent maintenance by technicians.

[0102] like Figure 2 as well as Figure 8-Figure 9As shown, in a specific implementation, one end of each of the straight sections is hinged to the second bracket 2, and the other end of each of the straight sections is connected to the second bracket 2 via a bolt 12;

[0103] A spring 13 is provided between the bolt 12 and the corresponding straight section on a side facing away from the second bracket 2 .

[0104] Specifically, the present application provides a way of movably connecting the support frame 10 and the second bracket 2, that is, one end of the straight section of the support frame 10 is hinged to the second bracket 2 through a pin shaft, and the other end of the straight section is connected to the second bracket 2 through a bolt 12, and a spring 13 is arranged between the bolt 12 and the straight section.

[0105] The number of springs 13 is the same as the number of support frames 10, and they correspond one to one. The springs 13 are used to provide a rebound force to compress the tow body between the rotating wheel 51 and the corresponding rotating wheel 42, thereby achieving the effect of fixing the position of the tow body. It should be noted that fixing the position of the tow body does not restrict whether the tow body can move in the corresponding channel 3. What is fixed is the trajectory of the tow body in the corresponding channel 3, preventing the trajectory of the tow body in the corresponding channel 3 from deviating or deviating from the corresponding rotating wheel 51 and the rotating wheel 42.

[0106] The above method can facilitate the installation of the support frame 10. Regardless of the number of the support frames 10, technicians can quickly install the support frames 10 on the second bracket 2. When one or more support frames 10 are damaged, technicians can also easily repair and replace them.

[0107] The purpose of the hinge is to facilitate the support frame 10 to move away from or closer to the second bracket 2 as the driving mechanism moves, and to compress or release the corresponding tow body between the rotating wheel 51 and the corresponding rotating wheel 42.

[0108] When the driving mechanism drives the second bracket 2 to retract toward the direction of the first bracket 1, the support frame 10 moves in the direction away from the first bracket 1, and the spring 13 is compressed. Under the action of the elastic force, the compressed spring 13 provides a rebound force for the corresponding rotating wheel 51, so that the rotating wheel 51 and the corresponding rotating wheel 42 press the yarn bundle body between the two; when the driving mechanism drives the second bracket 2 to stretch toward the direction of the first bracket 1, the support frame 10 and the second bracket 2 approach each other, and the spring 13 slowly returns to its original state as the support frame 10 and the second bracket 2 approach each other, and gradually reduces the resistance force on the corresponding rotating wheel 51, so as to release the state in which the rotating wheel 51 and the corresponding rotating wheel 42 press the yarn bundle body between the two. This structural design enables the device to control the yarn bundle body well and avoid the problem of position change of the yarn bundle body.

[0109] like Figure 4 As shown, in a specific implementation, the area enclosed by the cross section of each groove 8 along the first direction gradually increases along the third direction.

[0110] Specifically, this structural design can facilitate the entry of the filament bundle body into the corresponding channel 3.

[0111] Example 2

[0112] like Figures 1-9 As shown, the second embodiment of the present invention provides a wire placing head, comprising:

[0113] A pressing device, the pressing device comprising:

[0114] A first bracket 1 and a second bracket 2 are stacked, wherein a channel 3 for the filament bundle to pass through is formed between the first bracket 1 and the second bracket 2, and the first bracket 1 is used to connect to the frame body of the filament placement head;

[0115] a first rotating portion 4 rotatably disposed on the first bracket 1 about a first direction, wherein a portion of the first rotating portion 4 facing the second bracket 2 is exposed in the channel 3;

[0116] a second rotating portion 5 rotatably disposed on the second bracket 2 about the first direction, wherein a portion of the second rotating portion 5 facing the first bracket 1 is exposed in the channel 3;

[0117] The first rotating part 4 and the second rotating part 5 have a first working state and a second working state. In the first working state, the first rotating part 4 and the second rotating part 5 exposed in the channel 3 rotate toward each other to drive the filament bundle body passing through the channel 3 to move forward. In the second working state, the first rotating part 4 exposed in the channel 3 remains stationary to block the filament bundle body passing through the channel 3.

[0118] The first direction is perpendicular to the stacking direction of the first bracket 1 and the second bracket 2 .

[0119] Specifically, the wire laying head in the second embodiment can directly use the pressing device provided in the first embodiment. The specific implementation structure can refer to the relevant content described in the first embodiment, which will not be repeated here.

[0120] The wire laying head provided in the second embodiment of the present invention uses the clamping device provided in the above-mentioned first embodiment, which rotates unidirectionally on the first bracket 1 through the first rotating part 4, thereby avoiding the phenomenon that the wire bundle will generate tension and cause the wire bundle to be pulled back, effectively solving the technical problems existing in the prior art.

[0121] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A pressing device, characterized in that: include: A first bracket and a second bracket are stacked, wherein a passage for the filament bundle body to pass through is formed between the first bracket and the second bracket, and the first bracket is used to connect to the frame body of the filament placement head; a first rotating portion, rotatably disposed on the first bracket about a first direction, wherein a portion of the first rotating portion facing the second bracket is exposed in the channel; a second rotating portion, rotatably disposed on the second bracket about the first direction, wherein a portion of the second rotating portion facing the first bracket is exposed in the channel; The first rotating part and the second rotating part have a first working state and a second working state. In the first working state, the first rotating part and the second rotating part exposed in the channel rotate toward each other to drive the filament bundle body passing through the channel to move forward. In the second working state, the first rotating part exposed in the channel remains stationary to block the filament bundle body passing through the channel from moving forward. The first direction is perpendicular to the stacking direction of the first bracket and the second bracket; The first bracket has a first hollow along the second direction, and at least one group of recessed portions is provided on a side surface of the first bracket opposite to the second bracket, each group of recessed portions includes two grooves, the two grooves are arranged along the third direction, and the first hollow is located between the two grooves; The second bracket has a second hollow along the second direction, the first hollow and the second hollow are opposite to each other, and the second bracket is provided with at least one group of protrusions corresponding to at least one group of recessed portions on a side surface opposite to the first bracket, the protrusions and the recessed portions correspond one-to-one in the second direction, each group of protrusions includes two protrusions, the two protrusions are arranged along the third direction, and the second hollow is located between the two protrusions, and the protrusion located on the same side of the first hollow and the second hollow is embedded in the groove to enclose a receiving space with two openings opposite to each other along the third direction, and the two corresponding receiving spaces along the third direction form one channel; The clamping device also includes a driving mechanism, the output end of which is drivingly connected to the second bracket, and the driving mechanism is used to be connected to the wire laying head frame body. The driving mechanism drives the second bracket to move closer to or away from the direction of the wire laying head frame body to adjust the spacing distance between the first rotating part and the second rotating part.

2. The pressing device according to claim 1, characterized in that The portion of the first rotating portion facing the second bracket is exposed in the channel through the first hollowing, and the portion of the second rotating portion facing the first bracket is exposed in the channel through the second hollowing; The second direction is a stacking direction of the first bracket and the second bracket, and the third direction is perpendicular to the first direction and the second direction.

3. The pressing device according to claim 2, characterized in that: The first rotating part includes: A rotating shaft, with pressure rollers at both ends of the rotating shaft facing each other, and the pressure rollers are connected to the first bracket; at least one rotating wheel, the rotating wheel being rotatably connected to the rotating shaft via a one-way bearing; Part of the rotating wheel facing the second bracket is exposed through the first hollowing, the number of the rotating wheels is the same as the number of the filament bundle bodies and corresponds one to one, and the axis extension direction of the rotating shaft is the same as the first direction.

4. The pressing device according to claim 3, characterized in that: The second rotating part includes: At least one rotating wheel is rotatably connected to the second hollow structure, and the number of the rotating wheels is the same as the number of the tow bodies and corresponds one to one.

5. The pressing device according to claim 4, characterized in that: Also includes: A support frame, the support frame having a straight section and a raised section, the raised section being arranged on the straight section, and the straight section and the raised section being perpendicular to each other, the straight section being connected to the second bracket, the raised section having an end facing away from the straight section passing through the second hollow, and one end of the raised section being rotatably connected to the rotating wheel; The number of the rotating wheels is the same as the number of the supporting frames and corresponds one to one.

6. The pressing device according to claim 5, characterized in that: Also includes: The straight section is movably connected to the second bracket, and the driving mechanism drives the second bracket toward or away from the direction of the wire placement head frame body to adjust the spacing distance between the rotating wheel and the rotating wheel, so that the rotating wheel cooperates with the rotating wheel to press the wire bundle body or release the compression of the wire bundle body.

7. The pressing device according to claim 6, characterized in that: The driving mechanism comprises: Two clamping cylinders, each of which is provided with a mounting seat at the cylinder end, the mounting seat is used to be connected to the wire laying head frame body, the telescopic end of each clamping cylinder is connected to the second bracket, and the second rotating part is located between the two clamping cylinders.

8. The pressing device according to claim 6, characterized in that: One end of each of the straight sections is hinged to the second bracket, and the other end of each of the straight sections is connected to the second bracket via a bolt; Wherein, a spring is provided between the bolt and a side of the corresponding straight section facing away from the second bracket.

9. The pressing device according to claim 2, characterized in that: An area enclosed by a cross section of each groove along the first direction gradually increases along the third direction.

10. A wire placing head, characterized in that: include: A pressing device as claimed in any one of claims 1 to 9.

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