Pressing plate lifting delay rotating needling mechanism
By designing a press plate lift delayed rotary needle puncture mechanism, the shortcomings of the traditional needle puncture mechanism in the press plate lifting and needle puncture movements are solved, and a more stable, uniform and accurate needle puncture effect is achieved, and the product quality and the performance of the prefabricated body are improved.
Patent Information
- Application Number
- CN202422035942.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-22
- Publication Date
- 2025-06-13
- Estimated Expiration
- 2034-08-22
AI Technical Summary
The traditional acupuncture mechanism has shortcomings in the coordination of the press plate lifting and acupuncture actions, which cannot meet the complex process requirements, affecting the acupuncture effect and product quality.
A press plate lift delayed rotary needle puncture mechanism is designed, including a mounting arm, a drive assembly and a press plate needle puncture assembly. By achieving a delayed coordination between press plate lift and acupuncture action, the prefabricated body is more fully prepared before and after the needle puncture.
Through delayed fitting pressure plate lifting and needle-punching action, the displacement and deformation of the preform is reduced, the stability, uniformity and accuracy of the needle-punching are improved, and the product quality is improved. The diversity of the needle-punching is increased through rotary needle-punching, improving the performance and structure of the preform.
Smart Images
Figure CN222975425U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of carbon-carbon composite knitting, and particularly relates to a pressing plate lifting delay rotary needling mechanism. Background Art
[0002] Carbon-carbon composite material is a kind of carbon matrix composite material reinforced by carbon fiber and its fabric. With the rapid development of the carbon-carbon composite material industry, needling is an important reinforcement process in the production process of making carbon-carbon preforms. There are deficiencies in the coordination between the pressing plate lifting and the needling action of the traditional needling mechanism, and it often fails to meet complex process requirements, which may lead to needling when the preform has not been fully compacted and fixed, thus affecting the needling effect and product quality. At the same time, the simple linear needling method also limits the improvement of product performance and quality in some cases. Summary of the Utility Model
[0003] The technical problem to be solved by the utility model is to provide a pressing plate lifting delay rotary needling mechanism to reduce or avoid the problems mentioned above.
[0004] To solve the above technical problem, the utility model provides a pressing plate lifting delay rotary needling mechanism, which includes a mounting arm. A driving component is detachably connected to the bottom of the mounting arm. The driving component is rotatably connected to a pressing plate needling component. A positioning rod is arranged between the mounting arm and the pressing plate needling component.
[0005] Preferably, the driving component is provided with an H-shaped frame. A first driving motor is arranged outside the H-shaped frame, and a second driving motor is arranged inside the H-shaped frame. The first driving motor is connected with a pair of first driving wheels, and the second driving motor is connected with a second driving wheel.
[0006] Preferably, the pressing plate needling component includes a transmission box. A transmission shaft is arranged in the transmission box. A pair of first driven wheels are arranged on both sides of the transmission shaft. The transmission box is fixedly connected with a second driven wheel. The first driven wheel and the second driven wheel are coaxially arranged. The transmission box is provided with a pressing plate and a needling plate. The pressing plate and the needling plate are connected by a sleeve knot. The needling plate is slidably connected to the transmission box through a pair of first guiding rods. The pressing plate is slidably connected to the transmission box through two pairs of second guiding rods.
[0007] Preferably, the mounting arm is provided with a first hinge joint, and the transmission box is provided with a second hinge joint. A positioning rod is connected between the second hinge joint and the first hinge joint.
[0008] Preferably, the positioning rod is a hydraulic rod with a locking function.
[0009] Preferably, the second driving wheel and the second driven wheel are connected by a belt or a chain, and the first driving wheel and the first driven wheel are also connected by a belt or a chain.
[0010] Preferably, the belt or the chain is a timing belt.
[0011] Preferably, inside the transmission case, the two first guide rods are connected to the transmission shaft through a set of eccentric wheel and sliding link structure.
[0012] Preferably, the eccentric wheel and sliding link structure has an eccentric wheel provided for the transmission shaft. The eccentric wheel is connected with a slider through a bearing. A bottom plate is fixedly connected between the two first guide rods. A base is fixedly connected to the bottom plate. The base is provided with a sliding groove. The slider is slidably connected to the sliding groove through a slide rail.
[0013] Preferably, the slide rail and the sliding groove are of an X-shaped structure or a dovetail groove structure.
[0014] Preferably, when the eccentric wheel and sliding link structures used by the two pairs of second guide rods are assembled on the transmission shaft, the phases of the two eccentric wheels are the same. When the eccentric wheel and sliding link structure used by the two first guide rods are assembled, there is a phase difference from the eccentric wheels of the two pairs of second guide rods.
[0015] Preferably, the phase difference is 30 degrees or 45 degrees or 90 degrees.
[0016] The pressing plate lifting delayed rotary needle punching mechanism provided by the present utility model enables the preform to be more fully prepared before and after needle punching by realizing the delayed cooperation between the pressing plate lifting and the needle punching action, reduces displacement and deformation, improves the stability, uniformity and accuracy of needle punching, and thus improves the product quality. In addition, the rotary needle punching method increases the diversity of needle punching and can better improve the performance and structure of the preform. The overall mechanism improves the production efficiency and reduces the defective rate. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] The following drawings are only intended to illustrate and explain the present utility model schematically and do not limit the scope of the present utility model. Among them,
[0018] Figure 1 is a schematic diagram of the three-dimensional structural principle of a pressing plate lifting delayed rotary needle punching mechanism according to a specific embodiment of the present utility model;
[0019] Figure 2 is Figure 1 a schematic diagram of the three-dimensional structural principle of the pressing plate lifting delayed rotary needle punching mechanism from another angle;
[0020] Figure 3 isFigure 1 Schematic diagram of the three-dimensional structure principle of the middle driving component
[0021] Figure 4 is Figure 1 Schematic diagram of the three-dimensional structure principle of the platen needle-punching component of
[0022] Figure 5 is Figure 4 Schematic diagram of the sectional structure principle of the platen needle-punching component of
[0023] Figure 6 is Figure 5 Schematic diagram of the A-A sectional structure principle of the platen needle-punching component of
[0024] Figure 7 is Figure 4 Schematic diagram of the three-dimensional structure principle of the connection relationship between the slide rail and the base of Detailed implementation manners
[0025] For a clearer understanding of the technical features, objectives, and effects of the present utility model, the detailed implementation manners of the present utility model will now be described with reference to the accompanying drawings. Among them, the same components are denoted by the same reference numerals.
[0026] Figure 1 Schematic diagram of the three-dimensional structure principle of a platen lifting delay rotation needle-punching mechanism according to a specific embodiment of the present utility model; Figure 2 is Figure 1 Schematic diagram of the three-dimensional structure principle of another angle of the platen lifting delay rotation needle-punching mechanism of Figure 3 is Figure 1 Schematic diagram of the three-dimensional structure principle of the middle driving component in Figure 4 is Figure 1 Schematic diagram of the three-dimensional structure principle of the platen needle-punching component of ; see Figures 1 to 4 As shown in , the present utility model provides a platen lifting delay rotation needle-punching mechanism, which includes a mounting arm 1. The bottom of the mounting arm 1 is detachably connected to a driving component 2. The driving component 2 is rotatably connected to a platen needle-punching component 3. A positioning rod 4 is provided between the mounting arm 1 and the platen needle-punching component 3.
[0027] The mounting arm 1 is used to assemble the entire platen lifting delay rotation needle-punching mechanism on the needle-punching equipment. By adjusting the assembly height of the mounting arm 1, the vertical distance between the platen needle-punching component 3 and the carbon-carbon preform can be adjusted. The mounting arm 1 is provided with a first hinge joint 11.
[0028] See Figure 3As shown, the driving assembly 2 is provided with an H-shaped frame 21. On the one hand, this is conducive to the assembly with the mounting arm 1, and on the other hand, it can facilitate the rotatable mounting of the pressing plate needle punching assembly 3 on the H-shaped frame 21. A first driving motor 22 is arranged outside the H-shaped frame 21, and a second driving motor 23 is arranged inside. The first driving motor 22 is connected with a pair of first driving wheels 221, and the second driving motor 23 is connected with a second driving wheel 231.
[0029] See Figure 4 As shown, the pressing plate needle punching assembly 3 includes a transmission box 31. The transmission box 31 is provided with a transmission shaft 32. A pair of first driven wheels 321 are arranged on both sides of the transmission shaft 32. The transmission box 31 is fixedly connected with a second driven wheel 311. The first driven wheel 321 and the second driven wheel 311 are coaxially arranged. The transmission box 31 is provided with a pressing plate 33 and a needle punching plate 34. The pressing plate 33 and the needle punching plate 34 are sleeved and connected. The needle punching plate 34 is slidably connected with the transmission box 31 through a pair of first guide rods 341, and the pressing plate 33 is slidably connected with the transmission box 31 through two pairs of second guide rods 331. The transmission box 31 is provided with a second hinge joint 35.
[0030] See Figure 2 As shown, a positioning rod 4 is connected between the second hinge joint 35 and the first hinge joint 11. The positioning rod 4 can be a hydraulic rod with a locking function. In this way, when the pressing plate needle punching assembly 3 rotates in place, by locking the positioning rod 4, the position of the pressing plate needle punching assembly 3 can be fixed.
[0031] See Figure 1 and Figure 2 As shown, the second driving wheel 231 and the second driven wheel 311 are connected by a belt or a chain (preferably a synchronous belt). When it is necessary to rotate the pressing plate needle punching assembly 3, only need to start the second driving motor 23, drive the second driving wheel 231 to rotate, and then drive the second driven wheel 311 to rotate through the belt or the chain, so as to realize the rotation of the pressing plate needle punching assembly 3. When the pressing plate needle punching assembly 3 rotates in place, only need to turn off the second driving motor 23, and then lock the positioning rod 4 to fix the position of the pressing plate needle punching assembly 3.
[0032] The first driving wheel 221 and the first driven wheel 321 are also connected by a belt or a chain. When the first driving motor 22 is started, it drives the first driving wheel 221 to rotate, and then drives the first driven wheel 321 to rotate through the belt or the chain, so that the transmission shaft 32 can rotate, and thus the pressing plate 33 and the needle punching plate 34 can make reciprocating motions through the transmission shaft 32.
[0033] Figure 5 is Figure 4 a schematic cross-sectional structural principle diagram of the platen needle-punching assembly; Figure 6 is Figure 5 a schematic A-A cross-sectional structural principle diagram of the platen needle-punching assembly, Figure 7 is Figure 4 a three-dimensional structural principle diagram of the connection relationship between the slide rail and the base, see Figures 4 to 7 As shown in Figures 4 to 7 , inside the transmission box 31, the two first guide rods 341 are connected to the transmission shaft 32 through a set of eccentric wheel and sliding link structure. Specifically, the transmission shaft 32 is provided with an eccentric wheel, the eccentric wheel is connected with a slider through a bearing, a base plate is fixedly connected between the two first guide rods 341, a base is fixedly connected to the base plate, the base is provided with a chute, and the slider (a commercially available bearing block can be used) is slidably connected to the chute through a slide rail. See Figure 7 As shown in Figure 7 , the slide rail and the chute can be an X-shaped structure. Of course, it can also be a dovetail groove or other structures, as long as it can ensure the smooth sliding of the slide rail and the chute, and when the slide rail follows the slider to move in the vertical direction, it can drive the chute to generate synchronous vertical movement through the slide rail. When the transmission shaft 32 rotates, the eccentric wheel connected to the transmission shaft 32 through a pin key also rotates, and the slider connected to the eccentric wheel through a bearing will generate eccentric rotation around the transmission shaft 32. After the horizontal movement of the slider is transmitted to the slide rail, it is converted into the sliding of the slide rail in the chute. After the vertical movement of the slider is transmitted to the slide rail, it passes through the chute and then is transmitted to the two first guide rods 341 through the base plate, so that the two first guide rods 341 drive the needle-punching plate 34 to move vertically.
[0034] See Figure 4 and Figure 6As shown in the figure, for the two pairs of the second guide rods 331 connected to the pressing plate 33, in each pair of the second guide rods 331, an eccentric wheel and a sliding link structure same as that of the two first guide rods 341 are also arranged in the transmission box 31. Since the structures are exactly the same, they will not be described again. The only difference between the eccentric wheel and the sliding link structure used by the two pairs of the second guide rods 331 and the eccentric wheel and the sliding link structure used by the two first guide rods 341 lies only in the different phases assembled on the transmission shaft 32. Specifically, when the eccentric wheel and the sliding link structure used by the two pairs of the second guide rods 331 are assembled on the transmission shaft 32, the phases of the two eccentric wheels are the same, so as to ensure that the two pairs of the second guide rods 331 can synchronously move in the vertical direction. When the eccentric wheel and the sliding link structure used by the two first guide rods 341 are assembled, there must be a phase difference (for example, it can be 30 degrees, 45 degrees or 90 degrees) from the eccentric wheels of the two pairs of the second guide rods 331. In this way, when the needle punching plate 34 driven by the two first guide rods 341 moves upward after reaching the lowest position in the vertical direction, the pressing plate 33 driven by the two pairs of the second guide rods 331 has not reached the lowest position in the vertical direction and is still moving downward. Therefore, with respect to the needle punching plate 34, the pressing plate 33 can have a lifting delay action, and thus it can be ensured that the preform can be fully compacted and fixed.
[0035] The pressing plate lifting delay rotary needle punching mechanism provided by the present utility model enables the preform to be more fully prepared before and after needle punching by realizing the delay cooperation between the pressing plate lifting and the needle punching action, reduces the displacement and deformation, improves the stability, uniformity and accuracy of the needle punching, and thus improves the product quality. In addition, the rotary needle punching method increases the diversity of the needle punching and can better improve the performance and structure of the preform. The overall mechanism improves the production efficiency and reduces the defective rate.
[0036] Those skilled in the art should understand that although the present utility model is described in the manner of multiple embodiments, not every embodiment only contains an independent technical solution. Such narration in the specification is only for the sake of clarity. Those skilled in the art should understand the specification as a whole and regard the technical solutions involved in each embodiment as a way that can be combined with each other to form different embodiments to understand the protection scope of the present utility model.
[0037] In the description of the present application, it should be noted that the orientation or positional relationship indicated by terms such as "upper" and "lower" is based on the orientation or positional relationship shown in the drawings. This is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present application. Unless otherwise clearly specified and defined, the terms "installed", "connected" and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.
[0038] It should be noted that in the present application, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising one..." does not exclude the existence of additional identical elements in the process, method, article or device comprising the said element.
[0039] The above are only specific embodiments of the present application, enabling those skilled in the art to understand or implement the present application. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to these embodiments shown herein, but rather to the broadest scope consistent with the principles and novel features claimed herein. That is, equivalent changes, modifications and combinations made without departing from the concept and principles of the present invention shall fall within the scope of protection of the present invention.
Claims
1. A platen lifting and delayed rotation acupuncture mechanism, characterized in that: It comprises a mounting arm, the bottom of which is detachably connected with a driving assembly, the driving assembly is rotatably connected with a pressing plate needling assembly, and a positioning rod is arranged between the mounting arm and the pressing plate needling assembly.
2. The platen lifting and delayed rotation acupuncture mechanism according to claim 1, characterized in that: The driving assembly is provided with an H-shaped frame, a first driving motor is provided on the outside of the H-shaped frame, and a second driving motor is provided on the inside of the H-shaped frame. The first driving motor is connected to a pair of first driving wheels, and the second driving motor is connected to a second driving wheel.
3. The platen lifting and delayed rotation acupuncture mechanism according to claim 2, characterized in that: The pressure plate needling assembly includes a transmission box, the transmission box is provided with a transmission shaft, a pair of first driven wheels are provided on both sides of the transmission shaft, the transmission box is fixedly connected with a second driven wheel, the first driven wheel and the second driven wheel are coaxially arranged, the transmission box is provided with a pressure plate and a needling plate, the pressure plate and the needling plate are connected by a loop, the needling plate is slidably connected to the transmission box through a pair of first guide rods, and the pressure plate is slidably connected to the transmission box through two pairs of second guide rods.
4. The platen lifting and delayed rotation acupuncture mechanism according to claim 3, characterized in that: The installation arm is provided with a first hinged joint, the transmission box is provided with a second hinged joint, and a positioning rod is connected between the second hinged joint and the first hinged joint.
5. The platen lifting and delayed rotation acupuncture mechanism according to claim 4, characterized in that: The positioning rod is a hydraulic rod with a locking function.
6. The platen lifting and delayed rotation acupuncture mechanism according to claim 4, characterized in that: The second driving wheel is connected to the second driven wheel via a belt or a chain, and the first driving wheel is also connected to the first driven wheel via a belt or a chain.
7. The platen lifting and delayed rotation acupuncture mechanism according to claim 3, characterized in that: In the transmission box, the two first guide rods are connected to the transmission shaft through a set of eccentric wheels and sliding connecting rod structures. The eccentric wheel and sliding connecting rod structure is provided with an eccentric wheel for the transmission shaft. The eccentric wheel is connected to a sliding block through a bearing. A bottom plate is fixedly connected between the two first guide rods. A base is fixedly connected to the bottom plate. The base is provided with a slide groove. The slide block is slidably connected to the slide groove through a slide rail.
8. The platen lifting and delayed rotation acupuncture mechanism according to claim 7, characterized in that: The slide rail and the slide groove are X-shaped structures or dovetail groove structures.
9. The platen lifting and delayed rotation needling mechanism according to claim 7, characterized in that: When the eccentric wheels and sliding connecting rod structure used by the two pairs of the second guide rods are assembled on the transmission shaft, the two eccentric wheels have the same phase, while the eccentric wheels and sliding connecting rod structure used by the two first guide rods have a phase difference with the eccentric wheels of the two pairs of the second guide rods when assembled.
10. The platen lifting and delayed rotation acupuncture mechanism according to claim 9, characterized in that: The phase difference is 30 degrees, 45 degrees or 90 degrees.