Prefabricated body double-head collaborative needling processing equipment

Abstract

The invention discloses double-head collaborative needling processing equipment for a prefabricated body, and belongs to the field of needling processing. The preform double-head collaborative needling processing equipment comprises a rack, a rotating crucible part preform, a first needling mechanism and a second needling mechanism are arranged on the rack, and the preform double-head collaborative needling processing equipment further comprises a rotating mechanism used for driving the crucible part preform to rotate; the tip locking mechanism is propped against the crucible part preform; the center locking mechanism comprises a fixing block, a supporting piece is arranged at the bottom of the fixing block, a sliding seat is arranged at the bottom of the supporting piece, and two clamping blocks matched with the sliding rails are arranged in the sliding seat. A round block is slidably connected to the fixed block, and a conical head is rotatably arranged on the round block; a driving mechanism is arranged in the supporting piece; according to the invention, the eccentric condition of the crucible preform can be avoided, the processing track of the needling head is ensured, the overall needling density and thickness of the crucible preform are more uniform, fiber layer damage is avoided, and the service life is prolonged.

Description

Technical Field

[0001] This invention relates to the field of needle punching technology, and more particularly to a preform dual-head collaborative needle punching device. Background Technology

[0002] In modern industrial manufacturing, composite materials, with their superior properties such as high strength, low density, and high corrosion resistance, have gradually become indispensable basic materials for many high-end industries. As a key piece of equipment in the composite material manufacturing process, the preform CNC needle punching machine undertakes the important task of processing fiber materials into preforms with specific structures and properties. Its performance directly affects the quality and production efficiency of composite materials.

[0003] When the crucible in the needle punching machine is rotated and clamped, one end is usually driven to rotate by a rotating mechanism, while the other end is locked by a cone tip locking mechanism. This achieves the rotating needle punching effect of the crucible. This setting can utilize the self-centering property of the cone surface to precisely constrain the rotation center of the crucible on the coaxial line of the two axes, avoiding eccentric swinging during the rotation of the crucible, ensuring that the needle punching head can process evenly, and the conical contact surface of the cone tip can be adapted to crucibles of different diameters or wall thicknesses, improving the equipment's versatility for crucibles of different specifications.

[0004] However, in the use of existing needle punching machines, the cone on the top locking mechanism will experience fatigue deformation and loosening of threads after being subjected to axial force for a long time. This will lead to a shortening of the effective stroke of the telescopic rod, and the cone will retract backward, causing the coaxial centering of the two axes to fail. When the crucible rotates, eccentric oscillation will occur, which will cause the needle punching head to deviate from its processing trajectory. This will result in uneven needle punching density in the crucible preform, damage to the local fiber layer, and damage to the thickness uniformity of the preform. It may even lead to local over-punching or under-punching defects, shortening the service life. In view of this, the present invention is proposed. Summary of the Invention

[0005] The purpose of this invention is to solve the problems existing in the prior art by proposing a preform dual-head collaborative needle punching processing device.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A preform dual-head collaborative needle punching processing device includes a frame, on which a rotating crucible preform, a first needle punching mechanism, and a second needle punching mechanism are mounted, and further includes: A rotating mechanism for driving the rotation of crucible preforms; A center locking mechanism that abuts against the crucible component preform; The top locking mechanism includes a fixing block, a support member at the bottom of the fixing block, and a slide at the bottom of the support member; The frame has a slide rail, the slide block is slidably connected to the slide rail, and the slide block is provided with two clamping blocks that cooperate with the slide rail. A circular block is slidably connected to the fixed block, and a conical head is rotatably provided on the circular block. A connecting rod is provided at one end of the circular block inside the fixed block, and two clamping plates are fixedly connected on the connecting rod. The support member is equipped with a drive mechanism. The top of the drive mechanism is connected between two clamping plates, and the bottom of the drive mechanism cooperates with the clamping block.

[0007] Preferably, the inner wall of the fixing block is further provided with a first baffle and a second baffle, and a first spring and a second spring are respectively connected between the two clamping plates and the first baffle and the second baffle, and the first spring and the second spring are both sleeved on the outer wall of the connecting rod.

[0008] Furthermore, the driving mechanism includes an L-shaped slider slidably connected inside the support member and a clamping plate connected between the two clamping plates. The bottom of the clamping plate is provided with a trapezoidal block, and both the trapezoidal block and the L-shaped slider are provided with mutually cooperating inclined surfaces. The bottom of the L-shaped slider is connected to a support rod, and the bottom of the support rod is provided with a conical block that cooperates with the clamping block.

[0009] Furthermore, a support plate is fixedly installed inside the support member, the support rod is slidably connected to the support plate, and a first elastic element is provided between the support plate and the bottom of the L-shaped slider.

[0010] Furthermore, the bottom sides of the cone block are set as cone-shaped surfaces, and both clamping blocks are provided with inclined sections that cooperate with the cone-shaped surfaces. When the cone block moves downward to squeeze the clamping blocks, the clamping blocks will move and abut against the slide rail.

[0011] Furthermore, a limit rod is fixedly installed inside the slide block, an L-plate is provided on the outer wall of the clamping block, the L-plate is slidably connected to the L-plate, and a second elastic element is provided between the L-plate and the inner wall of the slide block.

[0012] Preferably, a rotating shaft is rotatably connected to the cone head, the rotating shaft is rotatably connected to a first baffle and a second baffle, a first limiting block is provided on the end of the rotating shaft away from the cone head, a cam is rotatably connected inside the fixing block, the cam is provided with a circular hole, and a second limiting block is provided on the inner wall of the circular hole.

[0013] Furthermore, the inner wall of the fixed block is provided with a fixed rod, and a rotating block is rotatably connected to the fixed rod. The rotating block is fixedly connected to the cam, and both the first limiting block and the second limiting block are provided with mutually cooperating guide wedge surfaces.

[0014] Furthermore, three cylinders are fixedly installed on the top inner wall and the left and right inner walls of the fixed block, respectively. Each of the three cylinders is connected to a connecting pipe and an air inlet. The cylinder in the middle is provided with a conveying pipe. The fixed block is provided with a vertical block, and the vertical block is provided with an air nozzle connected to the conveying pipe. The air nozzle faces the cone head.

[0015] Furthermore, each cylinder is slidably connected to a piston, and the piston is provided with a push rod. The end of the push rod outside the cylinder is provided with a push plate that cooperates with a cam. A third spring is provided between the push plate and the outer wall of the cylinder, and the third spring is sleeved on the outer wall of the push rod.

[0016] Compared with the prior art, the present invention provides a preform dual-head collaborative needle punching processing device, which has the following beneficial effects: 1. The preform dual-head collaborative needle punching processing equipment is equipped with a first needle punching mechanism for needle punching the side of the crucible preform, and two second needle punching mechanisms for needle punching the left and right end faces of the crucible preform, thereby achieving a dual-head collaborative needle punching effect on the crucible preform.

[0017] 2. This preform dual-head collaborative needle punching processing equipment, by setting the cone head to a movable state, can ensure that the cone head is always in close contact with the crucible preform under the action of the spring. When the cone head moves due to contact with the crucible preform, it will drive the drive mechanism through the connecting rod and clamping plate, thereby causing the bottom of the drive mechanism to move the locking block, making it in close contact with the slide rail, further achieving the positioning effect. This prevents the cone head from shifting or loosening after long-term use, thus avoiding eccentricity of the crucible preform, ensuring the processing trajectory of the needle head, making the overall needle punching density and thickness of the crucible preform more uniform, preventing fiber layer damage, and improving service life.

[0018] 3. This preform dual-head collaborative needle punching processing equipment, by setting a cam and a cylinder, enables the cone head to move and drive the cam to rotate, thereby realizing the reciprocating air intake operation of the cylinder. The gas ejected from the nozzle can clean the contact surface between the cone head and the crucible preform, avoiding the presence of debris that may affect the rotation of the crucible preform. This allows the cone head to fit better and avoids the risk of rotational sway of the crucible preform. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of a preform dual-head collaborative needle punching processing device proposed in this invention; Figure 2 This is a schematic diagram of the top locking mechanism in a preform double-headed collaborative needle punching processing device proposed in this invention; Figure 3This is a cross-sectional view of the center locking mechanism in a preform dual-head cooperative needle punching processing device proposed in this invention. Figure 1 ; Figure 4 This is a front sectional view of the tip locking mechanism in a preform double-headed collaborative needle punching processing device proposed in this invention. Figure 5 This is a cross-sectional view of the center locking mechanism in a preform dual-head cooperative needle punching processing device proposed in this invention. Figure 2 ; Figure 6 This invention proposes a preform dual-head collaborative needle punching processing device. Figure 5 An enlarged diagram of Part A; Figure 7 This is a cross-sectional view of the center locking mechanism in a preform dual-head cooperative needle punching processing device proposed in this invention. Figure 3 ; Figure 8 This is a schematic diagram of the cone block and clamping block in a preform dual-head collaborative needle punching processing device proposed in this invention; Figure 9 This is a schematic diagram of the structure of the round block, clamping plate and trapezoidal block in a preform dual-head collaborative needle punching processing device proposed in this invention; Figure 10 This is a schematic diagram of the structure of the first limiting block and the second limiting block in a preform dual-head collaborative needle punching processing device proposed in this invention.

[0020] In the diagram: 1. Frame; 101. Crucible component preform; 102. Rotating mechanism; 103. First needle-piercing mechanism; 104. Second needle-piercing mechanism; 2. Top locking mechanism; 201. Fixing block; 202. Telescopic rod; 203. Circular block; 204. Conical head; 205. First baffle; 206. Second baffle; 3. Connecting rod; 301. Clamping plate; 302. First spring; 303. Second spring; 304. Clamping plate; 305. Trapezoidal block; 306. Inclined surface; 4. Rotating shaft; 401. First limiting block; 402. Fixing rod; 403. Rotating block; 404. Cam; 405. Circular hole; 406. Second limiting block; 5. Cylinder; 501. Piston; 502. Push rod; 503. Push plate; 504. Third spring; 505. Conveying pipe; 506. Vertical block; 507. Air nozzle; 508. Connecting pipe; 6. Support component; 601. L-shaped slider; 602. Support rod; 603. Support plate; 604. First elastic component; 605. Conical block; 7. Slide seat; 701. Slide rail; 702. Clamping block; 703. Inclined section; 704. L-plate; 705. Limiting rod; 706. Second elastic component. Detailed Implementation

[0021] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0022] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention 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. Therefore, they should not be construed as limitations on this invention.

[0023] Example 1: Reference Figures 1-10 A preform dual-head collaborative needle punching processing device includes a frame 1, on which a rotating crucible preform 101, a first needle punching mechanism 103 and a second needle punching mechanism 104 are provided, and also includes a rotating mechanism 102 for driving the crucible preform 101 to rotate; and a tip locking mechanism 2 that abuts against the crucible preform 101.

[0024] In this embodiment, during use, one end of the crucible preform 101 is connected to the rotating mechanism 102, so that the tip locking mechanism 2 abuts against the other end of the crucible preform 101. Then, a needle-punching operation can be performed through the first needle-punching mechanism 103 and the second needle-punching mechanism 104. (Refer to...) Figure 1 The first needle-punching mechanism 103 is mainly used to needle the side of the crucible preform 101, while the two second needle-punching mechanisms 104 are mainly used to needle the left and right end faces of the crucible preform 101, thereby realizing all-round needle-punching of the crucible preform 101. The needle-punching direction of the second needle-punching mechanism 104 can be adjusted in multiple directions.

[0025] Reference Figures 2-4 The top locking mechanism 2 includes a fixed block 201, a support member 6 at the bottom of the fixed block 201, a slide block 7 at the bottom of the support member 6, a slide rail 701 on the frame 1, the slide block 7 being slidably connected to the slide rail 701, two clamping blocks 702 cooperating with the slide rail 701 inside the slide block 7, a circular block 203 slidably connected to the fixed block 201, a cone head 204 rotatably mounted on the circular block 203, a connecting rod 3 at one end of the circular block 203 placed inside the fixed block 201, two clamping plates 301 fixedly connected on the connecting rod 3, a driving mechanism inside the support member 6, the top of the driving mechanism being connected between the two clamping plates 301, and the bottom of the driving mechanism cooperating with the clamping blocks 702.

[0026] In this embodiment, a telescopic rod 202 is also fixedly installed on the frame 1. The driving end of the telescopic rod 202 is connected to the fixed block 201. Therefore, when the crucible preform 101 is tightened, the fixed block 201 can be moved by the telescopic rod 202, so that the slide 7 slides on the slide rail 701. When the fixed block 201 slides to abut against the crucible preform 101, the telescopic rod 202 will continue to exert force, so that the cone 204 and the crucible preform 101 are tightly abutted. At this time, the cone is compressed. The head 204 will drive the round block 203 to move a distance into the fixed block 201, thereby driving the connecting rod 3 to move. At this time, the clamping plate 301 on the connecting rod 3 will move synchronously, thereby driving the drive mechanism to work. The drive mechanism will drive the two clamping blocks 702 connected to the slide block 7 to move, so that they are tightly against the slide rail 701, further achieving the positioning effect and preventing the cone head 204 from shifting after long-term use. This allows it to better clamp the crucible preform 101 and improve its performance.

[0027] Example 2: Reference Figures 2-4 and Figures 7-9 A preform double-headed collaborative needle punching processing device is basically the same as that in Embodiment 1. Furthermore, the inner wall of the fixing block 201 is also provided with a first baffle 205 and a second baffle 206. A first spring 302 and a second spring 303 are respectively connected between the two clamping plates 301 and the first baffle 205 and the second baffle 206. The first spring 302 and the second spring 303 are both sleeved on the outer wall of the connecting rod 3.

[0028] In this application, when the cone 204 abuts against the crucible preform 101, the cone 204 will cause the circular block 203 to move to a certain displacement, thereby causing the connecting rod 3 to move the clamping plate 301. During this process, the first spring 302 will be stretched and the second spring 303 will be compressed. Under the action of the first spring 302 and the second spring 303, the cone 204 can always be tightly abutted against the crucible preform 101, and the cone 204 can automatically reset when not in use.

[0029] Reference Figure 4 and Figure 7 The driving mechanism includes an L-shaped slider 601 slidably connected inside the support member 6 and a clamping plate 304 connected between two clamping plates 301. The bottom of the clamping plate 304 is provided with a trapezoidal block 305. Both the trapezoidal block 305 and the L-shaped slider 601 are provided with mutually cooperating inclined surfaces 306. The bottom of the L-shaped slider 601 is connected to a support rod 602. The bottom of the support rod 602 is provided with a cone block 605 that cooperates with the clamping block 702.

[0030] Reference Figure 4 and Figure 7A support plate 603 is fixedly installed inside the support member 6, and a support rod 602 is slidably connected to the support plate 603. A first elastic member 604 is provided between the support plate 603 and the bottom of the L-shaped slider 601.

[0031] In this embodiment, the movement of the two clamping plates 301 will cause the clamping plate 304 to move. It should be noted that the clamping plate 304 and the fixing block 201 are horizontally slidably connected and will not move up and down. Therefore, when the clamping plate 304 moves, it will cause the trapezoidal block 305 to cooperate with the inclined surface 306 on the L-shaped slider 601. Under the action of the inclined surface 306, the L-shaped slider 601 can move downward, thereby causing the support rod 602 to move downward. When the support rod 602 moves, it will push the cone block 605 to move and cooperate with the clamping block 702, thereby causing the clamping block 702 to move and tightly abut against the slide rail 701, thus forming an effective fixation. During the movement, the support rod 602 will squeeze the first elastic member 604, which facilitates the subsequent reset operation.

[0032] Reference Figure 8 The bottom sides of the cone block 605 are set as cone-shaped surfaces, and the two clamping blocks 702 are each provided with inclined sections 703 that cooperate with the cone-shaped surfaces. When the cone block 605 moves downward to squeeze the clamping block 702, the clamping block 702 will move and abut against the slide rail 701.

[0033] When the cone block 605 moves, the conical surface at the bottom of the cone block 605 will press the inclined section 703 on the clamping block 702, thereby pressing the two clamping blocks 702 to both sides so that the two clamping blocks 702 are tightly against the slide rail 701, thereby achieving a fixing effect and preventing the cone head 204 from shifting.

[0034] Reference Figure 8 A limit rod 705 is fixedly installed inside the slide block 7. An L plate 704 is provided on the outer wall of the clamping block 702. The L plate 704 is slidably connected to the L plate 704. A second elastic element 706 is provided between the L plate 704 and the inner wall of the slide block 7.

[0035] In this embodiment, during the movement of the two clamping blocks 702, the L-plate 704 will move, and a limiting rod 705 is provided to limit the movement of the L-plate 704, which makes the movement of the clamping blocks 702 more stable and achieves a better clamping and fixing effect. During the movement of the L-plate 704, the second elastic element 706 will be squeezed. After clamping is completed, the rotating mechanism 102 is first loosened to release its clamping of the crucible preform 101, and then the crucible preform 101 can move slightly. At this time, the cone 204 can move at the first... The first spring 302 and the second spring 303 automatically reset, which then causes the clamping plate 301 and the clamping plate 304 to automatically reset. Then, the first elastic element 604 causes the L-shaped slider 601 to automatically reset, and the second elastic element 706 causes the clamping block 702 to automatically reset. At this time, the slide 7 can easily drive the fixed block 201 and the cone 204 to move, and it is also convenient for repeated clamping. The first elastic element 604 and the second elastic element 706 can be springs or sheet springs, as long as they can realize the reset support operation.

[0036] Example 3: Reference Figure 4 , Figure 5 , Figure 6 and Figure 10 A preform dual-head collaborative needle punching processing device is basically the same as that in Embodiment 2. Furthermore, a rotating shaft 4 is rotatably connected to the cone head 204. The rotating shaft 4 is rotatably connected to the first baffle 205 and the second baffle 206. A first limiting block 401 is provided on the end of the rotating shaft 4 away from the cone head 204. A cam 404 is rotatably connected in the fixing block 201. A round hole 405 is provided in the cam 404. A second limiting block 406 is provided on the inner wall of the round hole 405.

[0037] The inner wall of the fixed block 201 is provided with a fixed rod 402, and a rotating block 403 is rotatably connected to the fixed rod 402. The rotating block 403 is fixedly connected to the cam 404. The first limiting block 401 and the second limiting block 406 are both provided with mutually cooperating guide wedge surfaces.

[0038] In this embodiment, when the cone head 204 moves, it not only drives the circular block 203 and the connecting rod 3 to move, but also drives the rotating shaft 4 connected to the cone head 204 to move. When the rotating shaft 4 moves, it inserts into the circular hole 405 on the cam 404. It should be noted that, to avoid interference between the first limiting block 401 on the outer wall of the rotating shaft 4 and the second limiting block 406 on the inner wall of the circular hole 405 when the rotating shaft 4 is inserted, guide wedge surfaces are provided on both the first limiting block 401 and the second limiting block 406. During insertion, if the first limiting block 401 and the second limiting block 406 are in contact, the first limiting block 401 or the second limiting block 406 will rotate under the action of the guide wedge surface, so that the first limiting block 401 can be better inserted into the round hole 405. The guide wedge surfaces on the first limiting block 401 and the second limiting block 406 are both set from the side that is close to each other to gradually widen outward, that is, the side that is close to each other is pointed, which allows the rotating shaft 4 to be better inserted into the round hole 405.

[0039] Reference Figure 5 and Figure 6 Three cylinders 5 are fixedly installed on the top inner wall and the left and right inner walls of the fixing block 201. Each of the three cylinders 5 is connected to a connecting pipe 508 and an air inlet. The middle cylinder 5 is provided with a conveying pipe 505. The fixing block 201 is provided with a vertical block 506. The vertical block 506 is provided with a jet nozzle 507 that is connected to the conveying pipe 505. The jet nozzle 507 faces the cone head 204.

[0040] Reference Figure 4 and Figure 6 Each cylinder 5 is slidably connected to a piston 501. The piston 501 is provided with a push rod 502. The end of the push rod 502 located outside the cylinder 5 is provided with a push plate 503 that cooperates with the cam 404. A third spring 504 is provided between the push plate 503 and the outer wall of the cylinder 5. The third spring 504 is sleeved on the outer wall of the push rod 502.

[0041] In this invention, after the cone 204 is tightly abutted against the crucible preform 101, the rotating mechanism 102 can drive the crucible preform 101 to rotate for a needle-piercing operation. When the crucible preform 101 rotates, it drives the cone 204 to rotate as well. That is, the cone 204 rotates synchronously with the crucible preform 101 under frictional force, achieving rolling friction-type contact centering. This ensures rotational coaxiality and avoids sliding wear. Simultaneously, when the cone 204 moves, it drives the rotating shaft 4 to insert into the circular hole 405. At this time, because... The cone 204 rotates, thus causing the rotating shaft 4 to rotate synchronously. At this time, the first limiting block 401 located on the outer wall of the rotating shaft 4 will rotate to abut against the second limiting block 406 inside the circular hole 405, thereby driving the cam 404 to rotate through the second limiting block 406. It should be noted that when the rotating shaft 4 rotates, the end of the first limiting block 401 without a guide wedge surface will abut against the end of the second limiting block 406 without a guide wedge surface, that is, the ends of the first limiting block 401 and the second limiting block 406 that are set with a plane abut against each other, thereby causing the cam 404 to rotate. When shaft 4 rotates, it drives cam 404 to rotate. Cam 404, in turn, abuts against push plate 503, thereby driving piston 501 to move via push rod 502, conveying gas from inside cylinder 5. If push plates 503 on the left and right sides of cylinder 5 are compressed, gas inside cylinder 5 enters the top cylinder 5 through connecting pipe 508, then enters conveying pipe 505, and is subsequently ejected through nozzle 507, blowing against the point where cone 204 abuts against crucible preform 101, preventing debris and impurities from falling and affecting performance. A one-way valve is provided on the connecting pipe 508. If the push plate 503 on the top cylinder 5 is squeezed, the gas will not enter the connecting pipe 508. Instead, it will directly enter the top conveying pipe 505 and then be sprayed out from the jet nozzle 507 to achieve a cleaning effect. After the push plate 503 loses the squeezing force of the cam 404, the third spring 504 will cause the push plate 503 and the piston 501 to automatically reset. At this time, the air intake can be achieved in the cylinder 5 through the air inlet. A one-way valve is also provided at the air inlet, which allows the cylinder 5 to repeatedly perform the gas collection operation.

[0042] It should be noted that the push plate 503 is circular with its outer wall inclined inward, which allows the cam 404 to better abut and cooperate with it. Moreover, the force required for the cam 404 to drive the push plate 503 to rotate is not large. The friction generated at the cone 204 is sufficient to drive the rotating shaft 4 and the cam 404 to rotate to achieve the gas collection operation. The fiber debris generated by the needle punching process can easily enter the contact gap between the cone surface of the cone 204 and the crucible preform 101, causing the cone 204 to fail to fit properly and causing the crucible preform 101 to rotate and wobble. Therefore, by setting the air nozzle 507 to clean the debris in this application, the stable rotation of the crucible preform 101 can be further guaranteed.

[0043] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A preform dual-head collaborative needle punching processing device, comprising a frame (1), wherein a rotating crucible preform (101), a first needle punching mechanism (103), and a second needle punching mechanism (104) are provided on the frame (1), characterized in that, Also includes: Rotation mechanism (102) for driving the crucible component preform (101) to rotate. A top locking mechanism (2) that abuts against the crucible component preform (101); The top locking mechanism (2) includes a fixing block (201), the bottom of the fixing block (201) is provided with a support member (6), and the bottom of the support member (6) is provided with a slide (7). The frame (1) has a slide rail (701), and the slide block (7) is slidably connected to the slide rail (701). The slide block (7) has two clamping blocks (702) that cooperate with the slide rail (701). A circular block (203) is slidably connected to the fixed block (201). A cone head (204) is rotatably provided on the circular block (203). A connecting rod (3) is provided at one end of the circular block (203) placed inside the fixed block (201). Two clamping plates (301) are fixedly connected on the connecting rod (3). The support member (6) is provided with a drive mechanism. The top of the drive mechanism is connected between two clamping plates (301), and the bottom of the drive mechanism cooperates with the clamping block (702).

2. The preform dual-head collaborative needle punching processing equipment according to claim 1, characterized in that, The inner wall of the fixing block (201) is also provided with a first baffle (205) and a second baffle (206). The two clamping plates (301) are respectively connected to the first baffle (205) and the second baffle (206) with a first spring (302) and a second spring (303). The first spring (302) and the second spring (303) are both sleeved on the outer wall of the connecting rod (3).

3. The preform dual-head collaborative needle punching processing equipment according to claim 2, characterized in that, The driving mechanism includes an L-shaped slider (601) slidably connected inside the support member (6) and a clamping plate (304) connected between the two clamping plates (301). The bottom of the clamping plate (304) is provided with a trapezoidal block (305). Both the trapezoidal block (305) and the L-shaped slider (601) are provided with mutually cooperating inclined surfaces (306). The bottom of the L-shaped slider (601) is connected to a support rod (602). The bottom of the support rod (602) is provided with a cone block (605) that cooperates with the clamping block (702).

4. The preform dual-head collaborative needle punching processing equipment according to claim 3, characterized in that, A support plate (603) is fixedly installed inside the support member (6), and the support rod (602) is slidably connected to the support plate (603). A first elastic member (604) is provided between the support plate (603) and the bottom of the L-shaped slider (601).

5. The preform dual-head collaborative needle punching processing equipment according to claim 3, characterized in that, The bottom sides of the cone block (605) are set as cone-shaped surfaces, and the two clamping blocks (702) are provided with inclined sections (703) that cooperate with the cone-shaped surfaces. When the cone block (605) moves downward to squeeze the clamping block (702), the clamping block (702) will move and abut against the slide rail (701).

6. The preform dual-head collaborative needle punching processing equipment according to claim 5, characterized in that, A limit rod (705) is fixedly installed inside the slide (7), and an L plate (704) is provided on the outer wall of the clamping block (702). The L plate (704) is slidably connected to the L plate (704), and a second elastic element (706) is provided between the L plate (704) and the inner wall of the slide (7).

7. The preform dual-head collaborative needle punching processing equipment according to claim 2, characterized in that, A rotating shaft (4) is rotatably connected to the cone head (204). The rotating shaft (4) is rotatably connected to the first baffle (205) and the second baffle (206). A first limiting block (401) is provided on the end of the rotating shaft (4) away from the cone head (204). A cam (404) is rotatably connected inside the fixing block (201). A round hole (405) is provided inside the cam (404). A second limiting block (406) is provided on the inner wall of the round hole (405).

8. The preform dual-head collaborative needle punching processing equipment according to claim 7, characterized in that, The inner wall of the fixed block (201) is provided with a fixed rod (402), and a rotating block (403) is rotatably connected to the fixed rod (402). The rotating block (403) is fixedly connected to the cam (404). The first limiting block (401) and the second limiting block (406) are both provided with mutually cooperating guide wedge surfaces.

9. A preform dual-head collaborative needle punching processing device according to claim 8, characterized in that, Three cylinders (5) are fixedly installed on the top inner wall and the left and right inner walls of the fixed block (201). Each of the three cylinders (5) is connected to a connecting pipe (508) and an air inlet. The middle cylinder (5) is provided with a conveying pipe (505). The fixed block (201) is provided with a vertical block (506). The vertical block (506) is provided with a jet nozzle (507) that is connected to the conveying pipe (505). The jet nozzle (507) faces the cone head (204).

10. The preform dual-head collaborative needle punching processing equipment according to claim 9, characterized in that, Each cylinder (5) is slidably connected to a piston (501), and a push rod (502) is provided on the piston (501). One end of the push rod (502) outside the cylinder (5) is provided with a push plate (503) that cooperates with the cam (404). A third spring (504) is provided between the push plate (503) and the outer wall of the cylinder (5), and the third spring (504) is sleeved on the outer wall of the push rod (502).

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