Needle machine

Abstract

The invention relates to a needling machine, and relates to the technical field of needling. The needling machine comprises a rack, a rotary workbench, a rotary driving assembly and a needling assembly. The rotary working table is rotationally arranged on the rack, the rotary working table is provided with an annular bearing surface matched with the prefabricated body so as to bear the prefabricated body, and the central axis of the bearing surface coincides with the rotation axis of the rotary working table; the rotary driving assembly is arranged on the rack, and the driving end of the rotary driving assembly is connected with the rotary workbench; the needling assembly comprises a linear driving piece and a needling head; the linear driving piece is arranged on the rack, the driving direction of the linear driving piece is perpendicular to the bearing face, and the driving end of the linear driving piece is connected with the needling head. The problems that an existing prefabricated body of the heat shield ring and the heat shield outer ring cannot be produced through conventional prefabricated body needling equipment, and manual needling is large in labor intensity, low in efficiency and unstable in quality can be solved.

Description

Technical Field

[0001] This application relates to the field of acupuncture technology, and in particular to an acupuncture machine. Background Technology

[0002] The heat shield ring and outer ring of the single crystal furnace are generally made of carbon / carbon composite material (C / C composite material). They play different roles in the single crystal growth process. The heat shield ring directly affects the heat insulation effect and the stability of the thermal field, while the outer ring mainly plays an auxiliary support and sealing role. The two work together to optimize the thermal field structure to improve the crystal growth efficiency and quality.

[0003] Preforms are key intermediates in the manufacture of carbon / carbon composites. They are typically made by needle-punching short fibers into the interlayer of carbon fiber cloth and mesh to enhance interlayer bonding and form a 2.5D porous skeleton structure. After liquid-phase impregnation or vapor-phase deposition of a carbon matrix, a high-performance composite material is formed.

[0004] However, both the heat shield ring and the outer heat shield ring are irregularly shaped parts, and the corresponding preforms 10 are as follows: Figure 1 and Figure 2 As shown, the preform 10 of the heat shield ring has a conical structure, and the lower part of the preform 10 of the outer ring of the heat shield is conical, while the upper part is cylindrical. Neither of the preforms 10 can be produced using conventional preform needle punching equipment. Manual needle punching is labor-intensive, inefficient, and produces inconsistent quality. Therefore, there is an urgent need to develop a dedicated automatic needle punching device to meet production requirements. Summary of the Invention

[0005] Therefore, it is necessary to provide a needle punching machine to address the problems that existing preforms of heat shield rings and outer heat shield rings cannot be produced using conventional preform needle punching equipment, while manual needle punching is labor-intensive, inefficient, and of unstable quality.

[0006] To achieve the above objectives, the technical solution adopted in this application is as follows:

[0007] This application provides an acupuncture machine, including:

[0008] frame;

[0009] A rotating worktable is rotatably mounted on the frame. The rotating worktable is provided with an annular bearing surface adapted to the preform for bearing the preform. The central axis of the bearing surface coincides with the rotation axis of the rotating worktable.

[0010] A rotary drive assembly is disposed on the frame, and the drive end of the rotary drive assembly is connected to the rotary table; and

[0011] A needle-punching assembly includes a linear drive and a needle-punching head; the linear drive is disposed on the frame, its driving direction is perpendicular to the bearing surface, and the driving end of the linear drive is connected to the needle-punching head.

[0012] In one embodiment, the bearing surface includes a first surface and a second surface that intersect each other, and both the first surface and the second surface are arranged in annular shape;

[0013] The linear drive includes a first drive and a second drive. The driving direction of the first drive is perpendicular to the first surface, and the driving direction of the second drive is perpendicular to the second surface. The driving ends of the first drive and the second drive are respectively connected to different needle heads.

[0014] In one embodiment, at least two linear drive members are provided, and the at least two linear drive members are arranged from one end of the bearing surface along the central axis to the other end, and alternately drive the needle head to move.

[0015] The needle-piercing head is correspondingly disposed to the linear drive component and is connected to the drive end of the corresponding linear drive component.

[0016] In one embodiment, the rotary worktable includes a first mold and a second mold. The first mold is rotatably mounted on the frame and connected to the drive end of the rotary drive assembly. The second mold is detachably connected to the first mold. The first mold and the second mold are respectively provided with the bearing surface.

[0017] In one embodiment, the acupuncture machine further includes a first moving component and a second moving component;

[0018] The first movable component is disposed on the frame and includes a first movable end movable in a first direction;

[0019] The second moving component is disposed on the first moving end, and includes a second moving end that can move along a second direction;

[0020] The linear drive component is disposed at the second moving end;

[0021] Wherein, one of the first direction and the second direction is perpendicular to the rotation axis of the rotary table, and the other is parallel to the rotation axis of the rotary table.

[0022] In one embodiment, the first moving component further includes a first connector, a second connector, a first adjusting member, and an elastic member;

[0023] The first connector is connected to the frame, the second connector is connected to the first moving end, the first adjusting member passes through the second connector along the first direction and abuts against the first connector, and the first adjusting member and the second connector are threadedly engaged.

[0024] One end of the elastic element is connected to the frame, and the other end is connected to the first moving end. The elastic element is used to drive the first connecting member and the second connecting member to move closer to each other.

[0025] In one embodiment, a first guide rail is provided on the frame, the first guide rail extends along the first direction, a first slider is slidably provided on the first guide rail, and the first slider is connected to the first moving end.

[0026] In one embodiment, the second moving component further includes a base and a second adjusting member;

[0027] The base is disposed on the first movable end, and the second adjusting member is inserted through the base and the second movable end along the second direction. The second adjusting member is rotatably engaged with the base and threadedly engaged with the second movable end.

[0028] In one embodiment, a second guide rail is provided on the base, the second guide rail extends along the second direction, and a second slider is slidably provided on the second guide rail, the second slider being connected to the second movable end.

[0029] In one embodiment, a pad is provided on the rotating worktable, and the pad is applied to the bearing surface.

[0030] Compared to related technologies, the advantages of this application are as follows: When using the above-mentioned needle punching machine, the preform of the heat shield ring or outer ring is placed on the bearing surface of the rotary worktable. The linear drive component in the needle punching assembly drives the needle head to move back and forth in a direction perpendicular to the bearing surface, needle punching the side of the preform facing the needle punching assembly. Since the central axis of the bearing surface coincides with the rotation axis of the rotary worktable, the rotary drive assembly drives the rotary worktable to rotate, thereby driving the preform to rotate. This allows the needle punching assembly to needle the entire circumference of the preform, thus achieving automatic needle punching of irregularly shaped preforms. Compared with manual needle punching, the above-mentioned needle punching machine reduces the labor intensity of workers, improves production efficiency, and enhances the quality stability of the preform. Attached Figure Description

[0031] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0032] Figure 1 This is a schematic diagram of the structure of the prefabricated heat shield ring in related technologies;

[0033] Figure 2 This is a schematic diagram of the prefabricated structure of the outer ring of the heat shield in related technologies;

[0034] Figure 3 This is a schematic diagram of the overall structure of the acupuncture machine in some embodiments of this application;

[0035] Figure 4 This is a schematic diagram illustrating the cooperation relationship between the prefabricated body and the rotary table in some embodiments of this application;

[0036] Figure 5 This is a schematic diagram illustrating the cooperation relationship between the preform and the rotary table in other embodiments of this application;

[0037] Figure 6 This is a schematic diagram of the structure of the rotary drive assembly in some embodiments of this application;

[0038] Figure 7 This is a schematic diagram illustrating the cooperation relationship between the preform and the needle-punching component in some embodiments of this application;

[0039] Figure 8 This is a schematic diagram illustrating the cooperation relationship between the preform and the needle-punching component in other embodiments of this application;

[0040] Figure 9 This is a schematic diagram of the structure of the first moving component and the second moving component in some embodiments of this application. Figure 1 ;

[0041] Figure 10 This is a schematic diagram of the structure of the first moving component and the second moving component in some embodiments of this application. Figure 2 .

[0042] Explanation of reference numerals in the attached figures:

[0043] 10. Precast concrete;

[0044] 100, Frame; 110, Rotating shaft; 120, Turntable; 130, First guide rail; 140, First slider; 200, Rotary worktable; 201, Bearing surface; 210, Pad layer; 220, First mold; 221, First surface; 230, Second mold; 231, Second surface; 300, Rotary drive assembly; 310, Drive motor; 320, Drive sprocket; 330, Chain; 340, Driven sprocket; 400, Needle punching assembly; 410, Linear drive component; 411. First driving component; 412. Second driving component; 420. Needle head; 421. Needle; 500. First moving component; 510. First moving end; 520. First connecting component; 530. Second connecting component; 540. First adjusting component; 550. Elastic component; 600. Second moving component; 610. Second moving end; 620. Base; 621. Second guide rail; 622. Second slider; 630. Second adjusting component; X, first direction; Z, second direction. Detailed Implementation

[0045] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0046] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0047] Furthermore, where the term "and / or" appears, "and / or" merely describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship. Where the terms "first" and "second" appear, these terms are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" can explicitly or implicitly include at least one of those features. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0048] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0049] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0050] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0051] Please refer to the following: Figure 1 and Figure 2In related technologies, both the heat shield ring and the outer heat shield ring are irregularly shaped parts. The preform 10 of the former has a conical structure, while the preform 10 of the latter has a conical lower part and a cylindrical upper part. Neither of the preforms 10 can be produced using conventional preform needle punching equipment, and manual needle punching is labor-intensive, inefficient, and produces inconsistent quality.

[0052] Therefore, please refer to the following: Figure 3 and Figure 4 The embodiments of this application provide an acupuncture machine, including a frame 100, a rotary worktable 200, and a rotary drive assembly 300 (see [reference]). Figure 6 ) and acupuncture component 400.

[0053] The rotary worktable 200 is rotatably mounted on the frame 100. The rotary worktable 200 is provided with an annular bearing surface 201 adapted to the precast body 10 for bearing the precast body 10. The central axis of the bearing surface 201 coincides with the rotation axis of the rotary worktable 200.

[0054] Understandably, the compatibility of the bearing surface 201 with the preform 10 means that the shape of the bearing surface 201 is the same as the shape of the inner surface of the preform 10. As mentioned earlier, the preform 10 of the heat shield ring is a conical structure, and the lower part of the preform 10 of the outer ring of the heat shield is conical and the upper part is cylindrical. The inner surfaces of both preforms 10 are annular, and the bearing surface 201 that is compatible with them is also annular. When the preform 10 is placed on the bearing surface 201, the bearing surface 201 can uniformly support the preform 10, and the central axis of the bearing surface 201 coincides with the central axis of the preform 10. For example, the central axis of the bearing surface 201 extends vertically, and the preform 10 is held on the bearing surface 201 by its own weight.

[0055] In addition, the rotary drive assembly 300 is disposed on the frame 100, and the drive end of the rotary drive assembly 300 is connected to the rotary table 200.

[0056] The needle puncture assembly 400 includes a linear drive 410 and a needle head 420. The linear drive 410 is disposed on the frame 100, and its driving direction is perpendicular to the bearing surface 201. The driving end of the linear drive 410 is connected to the needle head 420.

[0057] When using the aforementioned needle punching machine, the preform 10 of the heat shield ring or outer ring is placed on the bearing surface 201 of the rotary worktable 200. The linear drive 410 in the needle punching assembly 400 drives the needle head 420 to move back and forth in a direction perpendicular to the bearing surface 201, needle punching the side of the preform 10 facing the needle punching assembly 400. Since the central axis of the bearing surface 201 coincides with the rotation axis of the rotary worktable 200, the rotary drive assembly 300 drives the rotary worktable 200 to rotate, thereby rotating the preform 10. This allows the needle punching assembly 400 to needle the entire circumference of the preform 10, thus achieving automatic needle punching of the irregularly shaped preform 10. Compared with manual needle punching, the aforementioned needle punching machine reduces the labor intensity of workers, improves production efficiency, and enhances the quality stability of the preform 10.

[0058] Please refer to the following: Figure 4 and Figure 5 In some embodiments, a pad 210 is provided on the rotary table 200, and the pad 210 covers the bearing surface 201.

[0059] When the needle punching assembly 400 needles the preform 10, the needle punching head 420 can penetrate into the pad layer 210, that is, completely pierce the preform 10 to ensure that the needle punching is in place. At this time, the precision requirement for the needle punching depth of the needle punching head 420 is lower, and it is only necessary to ensure that the needle punching head 420 does not penetrate out of the pad layer 210, which reduces the processing difficulty.

[0060] It should be noted that when the pad 210 is provided, the bearing surface 201 indirectly supports the precast body 10 through the pad 210. At this time, the shape of the bearing surface 201 is the same as the shape of the inner surface of the precast body 10, the size of the bearing surface 201 is smaller than the size of the inner surface of the precast body 10, and the central axis of the bearing surface 201 always coincides with the central axis of the precast body 10.

[0061] For example, the padding layer 210 may be a blanket or a soft foam pad, or a combination of blankets and soft foam pads.

[0062] In some embodiments, the rotary table 200 includes a first mold 220 and a second mold 230. The first mold 220 is rotatably mounted on the frame 100 and connected to the drive end of the rotary drive assembly 300. The second mold 230 is detachably connected to the first mold 220. Furthermore, the first mold 220 and the second mold 230 are respectively provided with a bearing surface 201.

[0063] Specifically, the bearing surface 201 on the first mold 220 is a conical surface, which is adapted to the inner surface of the preform 10 of the heat shield ring and also to the lower inner surface of the preform 10 of the outer heat shield ring. The bearing surface 201 on the second mold 230 is a cylindrical surface, which is adapted to the upper inner surface of the preform 10 of the outer heat shield ring.

[0064] When needle-punching the preform 10 of the heat shield ring, the second mold 230 is removed, leaving only the first mold 220, which is used to support the preform 10. When needle-punching the preform 10 of the outer ring of the heat shield, the second mold 230 is installed on the first mold 220, and the first mold 220 and the second mold 230 are used together to support the preform 10.

[0065] Therefore, by disassembling and assembling the second mold 230, the aforementioned needle punching machine can be better adapted to the production of different preforms 10, and has greater versatility.

[0066] For example, the second mold 230 is connected to the first mold 220 by bolts.

[0067] Please see Figure 6 In some embodiments, the frame 100 is provided with a rotating shaft 110 and a turntable 120. The axis of the rotating shaft 110, the axis of the turntable 120 and the axis of rotation of the rotary worktable 200 coincide, and the rotating shaft 110, the turntable 120 and the rotary worktable 200 are connected in sequence, specifically the rotating shaft 110, the turntable 120 and the first mold 220 are connected in sequence.

[0068] The rotating shaft 110 passes through the frame 100 and rotates with the frame 100 through the bushing and bearing.

[0069] Accordingly, the rotary drive assembly 300 includes a drive motor 310, a drive sprocket 320, a chain 330, and a driven sprocket 340. The drive motor 310 is mounted on the frame 100. The drive sprocket 320 is fitted onto the shaft of the drive motor 310 and keyed to the shaft. The driven sprocket 340 is fitted onto the end of the rotating shaft 110 away from the turntable 120 and keyed to the rotating shaft 110. The chain 330 is wound around the drive sprocket 320 and the driven sprocket 340.

[0070] In use, the drive motor 310 drives the active sprocket 320 to rotate, which in turn drives the driven sprocket 340 to rotate via the chain 330, ultimately driving the rotating shaft 110, turntable 120, rotating worktable 200 and preform 10 to rotate synchronously.

[0071] Please see Figure 7 In some embodiments, at least two linear drive members 410 are provided, and the at least two linear drive members 410 are arranged from one end of the bearing surface 201 along the central axis to the other end, and alternately drive the needle head 420 to move.

[0072] In addition, the needle head 420 is correspondingly provided with the linear drive 410 and is connected to the drive end of the corresponding linear drive 410.

[0073] Understandably, by setting at least two linear drive members 410 and arranging them from one end of the bearing surface 201 along the central axis to the other, specifically from the top end of the bearing surface 201 to the bottom end, the entire area of ​​the preform 10 facing the acupuncture assembly 400 can be needled. During the needleding process, it is only necessary to use the rotary drive assembly 300 to drive the rotary worktable 200 and the preform 10 to rotate, so that different circumferential areas of the preform 10 rotate sequentially to face the acupuncture assembly 400. There is no need to adjust the position of the acupuncture assembly 400, making the operation simple.

[0074] Furthermore, each linear drive unit 410 alternately drives the needle head 420 to move, sequentially needleing different positions of the preform 10 facing the needle assembly 400. Each time the preform 10 is needled, only a small number of needle heads 420 penetrate a portion of the preform 10, which helps to distribute the force and avoids excessive needle heads 420 simultaneously penetrating the preform 10, causing wrinkles and deformation.

[0075] It should be noted that the needle head 420 is configured to correspond to the linear drive unit 410, meaning that each needle head 420 can be configured to correspond to one linear drive unit 410. When the linear drive units 410 alternately drive the needle heads 420 to move, only one needle head 420 will penetrate the preform 10 at a time.

[0076] Alternatively, each pair of needle heads 420 can be paired with one linear drive unit 410. When the linear drive units 410 alternately drive the needle heads 420 to move, only two needle heads 420 penetrate the preform 10 at a time.

[0077] In this embodiment, each needle head 420 is provided with multiple needles 421. In addition, the linear drive 410 is a cylinder.

[0078] Please refer to the following: Figure 5 and Figure 8 In some embodiments, the bearing surface 201 includes a first surface 221 and a second surface 231 that intersect each other, and both the first surface 221 and the second surface 231 are arranged in a ring shape.

[0079] Correspondingly, the linear drive 410 includes a first drive 411 and a second drive 412. The driving direction of the first drive 411 is perpendicular to the first surface 221, and the driving direction of the second drive 412 is perpendicular to the second surface 231. The driving ends of the first drive 411 and the second drive 412 are respectively connected to different needle heads 420.

[0080] As mentioned above, the bearing surface 201 is adapted to the preform 10, and the shape of the bearing surface 201 is the same as the shape of the inner surface of the preform 10. When the inner surface of the preform 10 is composed of two different surfaces, the bearing surface 201 on the rotary table 200 also includes a first surface 221 and a second surface 231 that intersect each other.

[0081] For example, the lower part of the preform 10 of the outer ring of the heat shield is conical and the upper part is cylindrical. The inner surface of the preform 10 is composed of a conical surface and a cylindrical surface. At this time, the rotary table 200 is provided with a conical first surface 221 and a cylindrical second surface 231. The first surface 221 can support the lower part of the preform 10, and the second surface 231 can support the upper part of the preform 10.

[0082] Based on this, the linear drive 410 includes a first drive 411 and a second drive 412. When the preform 10 of the outer ring of the heat shield is needled, the first drive 411 drives the needle head 420 to move back and forth in a direction perpendicular to the first surface 221 to needle the lower part of the preform 10; the second drive 412 drives another needle head 420 to move back and forth in a direction perpendicular to the second surface 231 to needle the upper part of the preform 10.

[0083] Therefore, the aforementioned needle punching machine is better suited for irregularly shaped preforms 10, meeting the automatic needle punching requirements of irregularly shaped preforms 10.

[0084] Understandably, when the shape of the inner surface of the precast body 10 is more complex, the bearing surface 201 may also include a third surface, a fourth surface, and so on.

[0085] Specifically, in this embodiment, when the preform 10 of the outer ring of the heat shield is needle-punched, the rotating worktable 200 includes a first mold 220 and a second mold 230. The bearing surface 201 on the first mold 220 is the first surface 221, and the bearing surface 201 on the second mold 230 is the second surface 231.

[0086] Please refer to the following: Figure 3 , Figure 9 and Figure 10 In some embodiments, the acupuncture machine described above further includes a first moving component 500 and a second moving component 600.

[0087] A first moving component 500 is disposed on a frame 100 and includes a first moving end 510 movable along a first direction X.

[0088] Correspondingly, a second moving component 600 is disposed on the first moving end 510, which includes a second moving end 610 movable along the second direction Z.

[0089] In addition, the linear drive 410 is disposed on the second moving end 610.

[0090] Among them, one of the first direction X and the second direction Z is perpendicular to the rotation axis of the rotary table 200, and the other is parallel to the rotation axis of the rotary table 200.

[0091] As mentioned earlier, the preform 10 of the heat shield ring has a conical structure, and the lower part of the preform 10 of the outer ring of the heat shield is also conical. The corresponding bearing surfaces 201 are all conical surfaces. At the same time, the driving direction of the linear drive 410 is perpendicular to the bearing surface 201. Therefore, the driving direction of the linear drive 410 intersects the central axis of the bearing surface 201 at an angle, which is also the angle of intersection with the rotation axis of the rotary table 200.

[0092] Based on this, when adjusting the needle insertion depth, the position of the needle insertion assembly 400 needs to be adjusted in both directions perpendicular to the rotation axis of the rotary table 200 and parallel to the rotation axis of the rotary table 200. Specifically, the first moving end 510 drives the second moving assembly 600 and the needle insertion assembly 400 to move along the first direction X, and the second moving end 610 drives the needle insertion assembly 400 to move along the second direction Z.

[0093] For example, the first direction X is perpendicular to the rotation axis of the rotary table 200, and the second direction Z is parallel to the rotation axis of the rotary table 200.

[0094] Please refer to the following: Figure 9 and Figure 10 In some embodiments, the first moving component 500 further includes a first connector 520, a second connector 530, a first adjusting member 540, and an elastic member 550.

[0095] The first connector 520 is connected to the frame 100, and the second connector 530 is connected to the first moving end 510. The first adjusting member 540 passes through the second connector 530 along the first direction X and abuts against the first connector 520. The first adjusting member 540 and the second connector 530 are threadedly engaged.

[0096] In addition, one end of the elastic member 550 is connected to the frame 100 and the other end is connected to the first moving end 510. The elastic member 550 is used to drive the first connecting member 520 and the second connecting member 530 to move closer to each other.

[0097] In use, the first adjusting member 540 is screwed on so that the first adjusting member 540 extends toward the first connecting member 520 relative to the second connecting member 530, thereby overcoming the elastic force of the elastic member 550 and causing the first connecting member 520 and the second connecting member 530 to move away from each other, so that the first moving end 510 can move along the first direction X.

[0098] Conversely, by rotating the first adjusting member 540 in the opposite direction to retract it, the first connecting member 520 and the second connecting member 530 will move closer together under the elastic force of the elastic member 550, thereby causing the first moving end 510 to move in the opposite direction X. During this process, the first connecting member 520 remains in contact with the first adjusting member 540.

[0099] For example, the first adjusting member 540 is made of bolts.

[0100] Furthermore, in some embodiments, a first guide rail 130 is provided on the frame 100. The first guide rail 130 extends along a first direction X, and a first slider 140 is slidably provided on the first guide rail 130. The first slider 140 is connected to the first moving end 510.

[0101] In use, the first slider 140 cooperates with the first guide rail 130 to limit the first moving end 510, so that the first moving end 510 can move more smoothly along the first direction X.

[0102] In some embodiments, the second moving component 600 further includes a base 620 and a second adjusting member 630.

[0103] The base 620 is disposed on the first moving end 510. When the first moving end 510 moves along the first direction X, the base 620 moves with the first moving end 510, thereby driving the entire second moving component 600 to move.

[0104] In addition, the second adjusting member 630 is disposed along the second direction Z in the base 620 and the second moving end 610. The second adjusting member 630 is rotatably engaged with the base 620 and threadedly engaged with the second moving end 610.

[0105] In use, turning the second adjusting member 630 will drive the second moving end 610, which is threadedly engaged with it, to move along the extension direction of the second adjusting member 630, that is, to move along the second direction Z.

[0106] For example, the second adjusting member 630 is a lead screw. A nut is welded and fixed to the second moving end 610, and the nut is sleeved on the lead screw.

[0107] Furthermore, in some embodiments, a second guide rail 621 is provided on the base 620. The second guide rail 621 extends along the second direction Z, and a second slider 622 is slidably provided on the second guide rail 621. The second slider 622 is connected to the second moving end 610.

[0108] In use, the second slider 622 cooperates with the second guide rail 621 to limit the second moving end 610, so that the second moving end 610 can move more smoothly along the second direction Z.

[0109] In summary, when using the aforementioned needle punching machine, the preform 10 of the heat shield ring or outer ring is placed on the bearing surface 201 of the rotary worktable 200. The linear drive 410 in the needle punching assembly 400 drives the needle head 420 to move back and forth in a direction perpendicular to the bearing surface 201, needle punching the side of the preform 10 facing the needle punching assembly 400. Since the central axis of the bearing surface 201 coincides with the rotation axis of the rotary worktable 200, the rotary drive assembly 300 drives the rotary worktable 200 to rotate, thereby rotating the preform 10. This allows the needle punching assembly 400 to needle the entire circumference of the preform 10, thus achieving automatic needle punching of the irregularly shaped preform 10. Compared with manual needle punching, the aforementioned needle punching machine reduces the labor intensity of workers, increases production efficiency, and improves the quality stability of the preform 10. At the same time, the aforementioned needle punching machine can also effectively control the needle punching density and needle punching depth of the preform 10, which can also improve the quality stability of the preform 10. In addition, the above-mentioned needle punching machine has strong versatility and can be produced using preforms 10 of different sizes.

[0110] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0111] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. An acupuncture machine, characterized in that, include: frame; A rotating worktable is rotatably mounted on the frame. The rotating worktable is provided with an annular bearing surface adapted to the preform for bearing the preform. The central axis of the bearing surface coincides with the rotation axis of the rotating worktable. A rotary drive assembly is disposed on the frame, and the drive end of the rotary drive assembly is connected to the rotary worktable; as well as A needle-punching assembly includes a linear drive and a needle-punching head; the linear drive is disposed on the frame, its driving direction is perpendicular to the bearing surface, and the driving end of the linear drive is connected to the needle-punching head.

2. The acupuncture machine according to claim 1, characterized in that, The bearing surface includes a first surface and a second surface that intersect each other, and both the first surface and the second surface are arranged in a ring shape; The linear drive includes a first drive and a second drive. The driving direction of the first drive is perpendicular to the first surface, and the driving direction of the second drive is perpendicular to the second surface. The driving ends of the first drive and the second drive are respectively connected to different needle heads.

3. The acupuncture machine according to claim 1, characterized in that, At least two linear drive members are provided, and the at least two linear drive members are arranged from one end of the bearing surface along the central axis to the other end, and alternately drive the needle head to move. The needle-piercing head is correspondingly disposed to the linear drive component and is connected to the drive end of the corresponding linear drive component.

4. The acupuncture machine according to claim 1, characterized in that, The rotary worktable includes a first mold and a second mold. The first mold is rotatably mounted on the frame and connected to the drive end of the rotary drive assembly. The second mold is detachably connected to the first mold. The first mold and the second mold are respectively provided with the bearing surface.

5. The acupuncture machine according to any one of claims 1 to 4, characterized in that, The acupuncture machine also includes a first moving component and a second moving component; The first movable component is disposed on the frame and includes a first movable end movable in a first direction; The second moving component is disposed on the first moving end, and includes a second moving end that can move along a second direction; The linear drive component is disposed at the second moving end; Wherein, one of the first direction and the second direction is perpendicular to the rotation axis of the rotary table, and the other is parallel to the rotation axis of the rotary table.

6. The acupuncture machine according to claim 5, characterized in that, The first moving component further includes a first connector, a second connector, a first adjusting member, and an elastic member; The first connector is connected to the frame, the second connector is connected to the first moving end, the first adjusting member passes through the second connector along the first direction and abuts against the first connector, and the first adjusting member and the second connector are threadedly engaged. One end of the elastic element is connected to the frame, and the other end is connected to the first moving end. The elastic element is used to drive the first connecting member and the second connecting member to move closer to each other.

7. The acupuncture machine according to claim 6, characterized in that, The frame is provided with a first guide rail, which extends along the first direction. A first slider is slidably provided on the first guide rail, and the first slider is connected to the first moving end.

8. The acupuncture machine according to claim 5, characterized in that, The second moving component also includes a base and a second adjusting member; The base is disposed on the first movable end, and the second adjusting member is inserted through the base and the second movable end along the second direction. The second adjusting member is rotatably engaged with the base and threadedly engaged with the second movable end.

9. The acupuncture machine according to claim 8, characterized in that, A second guide rail is provided on the base, the second guide rail extends along the second direction, and a second slider is slidably provided on the second guide rail, the second slider being connected to the second moving end.

10. The acupuncture machine according to any one of claims 1 to 4, characterized in that, A pad is provided on the rotating worktable, and the pad is covered on the bearing surface.

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