Miniature manual needling actuator with counting and net stripping functions and use method of miniature manual needling actuator

Abstract

The invention relates to a miniature manual needling actuator with counting and net stripping functions. The miniature manual needling actuator comprises a needling needle, a needle plate, a net stripping plate and a grip. The photoelectric sensor is fixedly arranged in the grip, the grip is detachably connected with the needle plate, and the pricking needle is arranged in the center of the needle plate in a tight fit manner; at least one telescopic rod is fixedly mounted on the needle plate, a spring and a copper sleeve are arranged in the telescopic rod, the other end of the telescopic rod is fixed with the net stripping plate, and the spring in the telescopic rod is compressed and rebounded to drive the needle plate to reciprocate to realize needling action; a limiting rod and a counting rod are fixedly installed on the side, facing the needle plate, of the net stripping plate, the counting rod is movably connected with the needle plate, and the upper end of the counting rod can penetrate through the needle plate to be arranged at the center of the photoelectric sensor. The photoelectric sensor is connected to the digital display counter, and the counting rod penetrates through the photoelectric sensor in a reciprocating mode to transmit signals to the digital display counter to achieve counting when the needling action is carried out. The invention further discloses a using method of the acupuncture actuator. According to the invention, needling forming of small-batch, multi-variety and complex-shape three-dimensional preforms can be realized.

Description

Technical Field

[0001] The present invention belongs to the technical field of prefabricated component needle punching forming, and is specifically applicable to three-dimensional prefabricated components with complex shapes. In particular, it relates to a micro manual needle punching actuator with counting and mesh peeling functions and its usage method. Background Art

[0002] Three-dimensional needle punching is a low-cost preparation technology for three-dimensional fabrics. The short-cut fibers in the web are brought into the thickness direction of the fabric by the needle, improving the interlayer strength of the fabric. And because its forming process is relatively simple, with a short delivery cycle and low cost, it has always been a hot research topic at home and abroad. In 1988, Olry proposed the flat fabric homogenization forming technology. After more than 30 years of development, the three-dimensional needle punching technology has gradually developed from flat needle punching forming to needle punching forming of complex special-shaped curved surfaces.

[0003] Chinese Patent CN221877347U discloses a flat needle punching machine with a guide post support frame. By adding guide posts on the basis of the existing needle punching machine, it plays a role in guiding and assisting the up and down movement of the machine frame, facilitating the flat needle punching machine to complete the punching operation on the fiber web, and at the same time playing a protective role. Chinese Patent CN115748109A discloses a flat needle punching device with pressure control and depth adjustment, which can control the needle punching pressure and depth compared with the traditional flat needle punching machine, but cannot punch special-shaped preforms. Chinese Patent CN209082133U discloses a special-shaped cross-section three-dimensional fabric needle punching machine designed by Yang Jiancheng et al., which integrates a spherical needle punching device and a flat needle punching device. The spherical needle punching device is used for the top punching forming of the capping fabric. Chinese Patent CN210657393U discloses a needle punching machine for preparing carbon fiber crucible preforms designed by Jiang Hongliang, which uses a servo motor as the power, and the needle punching angle is controllable, which can meet the punching forming of crucibles with different outer shapes. Chinese Patent CN209243324U discloses a special needle punching machine for missile shells designed by Fan Zhen et al., which replaces manual operation and greatly improves the production efficiency. Most of the above special-shaped needle punching machines are structural improvements on the traditional flat needle punching, using large needle plates for punching forming, with high efficiency, but strong specificity and limited adaptability to fabric configurations. Usually, they need to be designed specifically for specific fabric configurations. The above needle punching equipment is mainly used for the punching forming of flat preforms and large-sized special-shaped preforms with small curvatures, and it is difficult to meet the punching forming of complex special-shaped preforms with large curvatures and small sizes. Therefore, researchers invented a portable pneumatic needle punching gun (Chinese Patent CN205653565U) and a servo needle punching gun (Chinese Patent CN208776939U) for punching complex special-shaped parts with large curvatures and small sizes. However, the sizes of the needle punching guns are large, the structures are complex, the weights are heavy, the impact force during use is large, and there is no counting function, which is inconvenient to use, and it is difficult to control the needle punching density and ensure the forming quality of the preform. In addition, although the mini manual wool felting tool sold on the market is small in volume and light in weight, it has no functions of stripping the web and applying pressure, no counting function, and the punched preform is relatively fluffy and the interlayer connection performance is weak. Summary of the Invention

[0004] The present invention provides a mini manual needle punching actuator with counting and web stripping functions and its use method to solve the technical problems existing in the known technology. The needle punching actuator in the present invention can realize the punching forming of small-batch and multi-variety complex-shaped three-dimensional preforms, and is simple, convenient and flexible to use.

[0005] The present invention includes the following technical solutions:

[0006] A micro manual acupuncture actuator with counting and net stripping functions, comprising an acupuncture needle, a needle plate, a net stripping plate and a grip; a photoelectric sensor is fixedly installed inside the grip, the grip is detachably connected to the needle plate, and the acupuncture needle is installed at the center of the needle plate by a tight fit; at least one telescopic rod is fixedly installed on the needle plate, a spring and a copper sleeve are arranged inside the telescopic rod, the other end of the telescopic rod is fixed to the net stripping plate, and the reciprocating movement of the needle plate is driven by the compression and rebound of the spring inside the telescopic rod to realize the acupuncture action; a limiting rod and a counting rod are fixedly installed on one side of the net stripping plate facing the needle plate, the counting rod is movably connected to the needle plate, and the upper end of the counting rod can pass through the needle plate and be placed at the center of the photoelectric sensor; the photoelectric sensor is connected to a digital display counter, and when the acupuncture action is performed, the counting rod reciprocally passes through the photoelectric sensor to transmit signals to the digital display counter to realize counting. The present invention is a hand-held operation, suitable for the acupuncture forming of complex components; by manually compressing the spring, pushing the telescopic rod to move, driving the needle plate to move, and further enabling the reciprocating movement of the acupuncture needle to realize acupuncture, and the acupuncture times can be recorded through the photoelectric sensor and the digital display counter.

[0007] Further, the grip is integrally made of aluminum alloy material, a sensor installation part is provided at the bottom, the middle part for holding by hand is a hollow structure, and a wire passing hole is provided at the top.

[0008] Further, the grip is fixedly connected to the needle plate by a thread, and the photoelectric sensor is fixed inside the grip by a bolt.

[0009] Further, a needle blocking plate is installed at the center of one side of the needle plate facing the grip through a bolt connection, and the needle blocking plate is arranged behind the acupuncture needle.

[0010] Further, the upper end of the telescopic rod is connected to the needle plate by a bolt, and the lower end of the telescopic rod is connected and fixed to the net stripping plate by a thread.

[0011] Further, the number of the telescopic rods is three and they are arranged outside the acupuncture needle.

[0012] Further, the limiting rod is installed on the net stripping plate through a thread connection, and the acupuncture depth can be changed by rotating the limiting rod, and the acupuncture depth is controlled between 10 mm and 20 mm.

[0013] Further, the limiting rod is a hexagonal screw rod.

[0014] Further, the lower end of the counting rod is installed on the net stripping plate through a thread connection, and the upper end of the counting rod moves inside the counting hole opened on the needle plate.

[0015] Further, the net stripping plate is a convex platform structure, the diameter of the convex platform part is 25 mm, and the overall thickness of the net stripping plate is 20 mm; the diameter of the hole on the net stripping plate is 2 mm larger than the diameter of the acupuncture needle to facilitate the entry and exit of the acupuncture needle during the acupuncture action.

[0016] Furthermore, the digital display counter is selected as Shengfu: SF-02 digital display counter. The digital display counter is arranged outside the grip and is connected to the photoelectric sensor through a data transmission line; the data transmission line passes through the top of the grip.

[0017] Furthermore, the photoelectric sensor is selected as STUOB: FM-SM671-WR (NPN type) slot photoelectric sensor.

[0018] The usage method of the above-mentioned acupuncture actuator includes the following steps: First, hold the top of the grip and place the stripping plate at the acupuncture site; then, press down the grip to push the needle plate and the acupuncture needles forward, the telescopic rod contracts, the acupuncture needles penetrate into the fabric preform, and the counting rod passes through the detection slot of the slot photoelectric sensor; at this time, after the photoelectric sensor detects the counting rod, it transmits a signal to the digital display counter for acupuncture counting; when the needle plate continues to move forward and touches the limit rod, the target acupuncture depth is reached, then lift the grip, the spring pushes the telescopic rod back to the initial point, and the stripping plate realizes stripping, completing one acupuncture and counting.

[0019] Compared with the prior art, the advantages and positive effects of the present invention are:

[0020] 1. The present invention is small in size, light in weight, flexible, simple to use, and convenient to operate. The acupuncture depth can be controlled between 10 mm and 20 mm by adjusting the limit rod; the present invention is suitable for acupuncture forming of small batches and multi-variety complex-shaped three-dimensional preforms or local acupuncture forming of large components.

[0021] 2. The present invention integrates the functions of photoelectric sensor detection and acupuncture counting, effectively controls the acupuncture density of the preform, and ensures the acupuncture forming quality of the preform.

[0022] 3. The present invention is provided with a stripping plate and integrates the stripping function, effectively improving the density and interlayer connection performance of the acupuncture preform.

[0023] 4. The grip of the present invention adopts a hollow design and is made of aluminum alloy material as a whole, which can greatly reduce the weight while ensuring the structural strength.

[0024] 5. A copper sleeve is installed inside the telescopic rod of the present invention, which reduces friction, improves wear resistance, enhances stability, and can extend the service life of the whole machine.

[0025] 6. The boss size of the stripping plate of the present invention is relatively small, with a diameter of only 25 mm and a boss height of 20 mm. Compared with the flat stripping plate and the straight cylinder stripping plate, it can meet the acupuncture forming of preforms with large negative curvature. Description of the Drawings

[0026] Figure 1 is the overall structural schematic diagram of the initial state of the acupuncture actuator of the present invention;

[0027] Figure 2 is a schematic diagram of the overall structure of the acupuncture actuator of the present invention in the piercing state;

[0028] Figure 3 is a schematic diagram of the structure of the acupuncture actuator of the present invention after removing the top grip;

[0029] Figure 4 is a schematic diagram of the structure of the acupuncture actuator of the present invention after removing the top grip and the needle blocking plate;

[0030] Figure 5 is a front view schematic diagram of the grip of the acupuncture actuator of the present invention;

[0031] Figure 6 is Figure 5 a schematic diagram of the C-C cross-sectional structure of the grip in;

[0032] Figure 7 is a three-dimensional structure schematic diagram of the telescopic rod of the acupuncture actuator of the present invention;

[0033] Figure 8 is a schematic diagram of the internal structure of the telescopic rod;

[0034] Figure 9 is a schematic diagram of the structure of installing a photoelectric sensor in the grip;

[0035] Figure 10 is a three-dimensional schematic diagram of the photoelectric sensor and its installation structure;

[0036] In the figure, 1 - needle plate; 2 - needle blocking plate; 3 - acupuncture needle; 4 - wire stripping plate; 5 - telescopic rod; 6 - copper sleeve; 7 - spring; 8 - limiting rod; 9 - grip; 10 - counting rod; 11 - photoelectric sensor; 12 - digital display counter; 13 - counting hole; 14 - data transmission line; 15 - sensor installation part. Detailed embodiments

[0037] In order to further disclose the content, features and effects of the present invention, the following examples are specifically cited and described in detail in conjunction with the accompanying drawings. In the description of the following embodiments, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this patent 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, and therefore should not be construed as a limitation to this patent.

[0038] In the description of the following embodiments, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", "linkage", and "setting" should be understood in a broad sense. For example, it can be fixedly connected and set, or detachably connected and set, or integrally connected and set. For those of ordinary skill in the art, the specific meanings of the above terms in this patent can be understood according to specific circumstances.

[0039] Embodiment: Refer to the appendix Figures 1-10 , a micro manual acupuncture actuator with counting and mesh stripping functions. The total length of the handheld working section of the actuator is 193 mm to 213 mm, and the maximum diameter is 56 mm. It includes a puncture needle 3, a needle plate 1, a mesh stripping plate 4, and a grip 9. The grip 9 is made of aluminum alloy material as a whole, with a sensor installation part at the bottom, a hollow structure at the middle part for hand holding, and a wire passing hole at the top. The photoelectric sensor 11 is fixedly installed inside the grip 9 through bolts. The photoelectric sensor 11 selects STUOB: FM-SM671-WR (NPN type) slot photoelectric sensor. The grip 9 is detachably connected to the needle plate 1 through threads, and the puncture needle 3 is installed at the center of the needle plate 1 by tight fit. A stop needle plate 2 is connected and installed at the center of the side of the needle plate 1 facing the grip 9 through bolts, and the stop needle plate 2 is arranged behind the puncture needle 3.

[0040] Three telescopic rods 5 (three in this example) are fixedly installed on the needle plate 1. The other end of the telescopic rod 5 is fixed to the mesh stripping plate 4. The upper end of the telescopic rod 5 is connected to the needle plate 1 through bolts, and the lower end of the telescopic rod 5 is connected and fixed to the mesh stripping plate 4 through threads. The telescopic rod 5 is arranged outside the puncture needle 3. A spring 7 and a copper sleeve 6 are arranged inside the telescopic rod 5. The compression and rebound of the spring 7 inside the telescopic rod 5 drive the reciprocating movement of the needle plate 1 to achieve the acupuncture action.

[0041] A limiting rod 8 and a counting rod 10 are fixedly installed on the side of the mesh stripping plate 4 facing the needle plate 1. The limiting rod 8 is connected and installed on the mesh stripping plate 4 through threads. By rotating the limiting rod 8, the acupuncture depth can be changed, and the acupuncture depth is controlled between 10 mm and 20 mm. The limiting rod 8 is a hexagonal screw rod. The counting rod 10 is movably connected to the needle plate 1. The upper end of the counting rod 10 can pass through the needle plate 1 and be placed at the center of the photoelectric sensor 11. The lower end of the counting rod 10 is connected and installed on the mesh stripping plate 4 through threads, and the upper end of the counting rod 10 moves inside the counting hole 13 opened on the needle plate 1. The mesh stripping plate 4 is a convex platform structure, and the diameter of the convex platform part is 25 mm. The overall thickness of the mesh stripping plate 4 is 20 mm. The diameter of the hole on the mesh stripping plate 4 is 2 mm larger than the diameter of the puncture needle 3 to facilitate the entry and exit of the puncture needle 3 during the acupuncture action.

[0042] The photoelectric sensor 11 is connected to a digital display counter 12. The digital display counter 12 is selected as Shengfu: SF-02 digital display counter. The digital display counter 12 is arranged outside the grip 9 and is connected to the photoelectric sensor 11 through a data transmission line 14. The data transmission line 14 passes through the top of the grip 9. When the needling action is performed, the counting rod 10 reciprocates through the photoelectric sensor 11 to transmit signals to the digital display counter 12 to achieve counting.

[0043] The present invention is a hand-held operation, suitable for the needling forming of complex components. By manually compressing the spring 7, the telescopic rod 5 is pushed to move, driving the needle plate 1 to move, and then the needle 3 reciprocates to achieve needling. The number of needling times can be recorded through the photoelectric sensor 11 and the digital display counter 12. The present invention adopts a lightweight design, which can improve work efficiency and portability.

[0044] The usage method of the above-mentioned needling actuator includes the following steps: First, hold the top of the grip 9 and place the stripping plate 4 at the needling position. Then, press down the grip 9 to push the needle plate 1 and the needle 3 to move forward. The telescopic rod 5 contracts, and the needle 3 pierces into the fabric preform. The counting rod 10 passes through the detection slot of the groove type photoelectric sensor 11. At this time, after the photoelectric sensor 11 detects the counting rod 10, it transmits a signal to the digital display counter 12 for needling counting. When the needle plate 1 continues to move forward and touches the limit rod 8, the target needling depth is reached. Then, lift the grip 9, and the spring 7 pushes the telescopic rod 5 back to the initial point, and the stripping plate 4 realizes stripping, completing one needling and counting.

[0045] Although the preferred embodiments of the present invention are described above, the present invention is not limited to the above specific embodiments. The above specific embodiments are only illustrative and not restrictive. Under the inspiration of the present invention, those of ordinary skill in the art can also make many forms without departing from the spirit and scope protected by the present invention's claims. These all fall within the protection scope of the present invention.

Claims

1. A micro manual acupuncture actuator with counting and mesh stripping functions, comprising an acupuncture needle, a needle plate, a mesh stripping plate and a grip, characterized in that: An optoelectronic sensor is fixedly installed inside the grip. The grip is detachably connected to the needle plate, and the acupuncture needle is installed at the center of the needle plate by a tight fit. At least one telescopic rod is fixedly installed on the needle plate. A spring and a copper sleeve are arranged inside the telescopic rod. The other end of the telescopic rod is fixed to the stripping plate. The reciprocating movement of the needle plate is realized by the compression and rebound of the spring inside the telescopic rod to perform the acupuncture action. A limiting rod and a counting rod are fixedly installed on one side of the stripping plate facing the needle plate. The counting rod is movably connected to the needle plate, and the upper end of the counting rod can pass through the needle plate and be placed at the center of the optoelectronic sensor. The optoelectronic sensor is connected to a digital display counter. When the acupuncture action is performed, the counting rod reciprocally passes through the optoelectronic sensor to transmit a signal to the digital display counter to realize counting.

2. The micro manual acupuncture actuator with counting and net stripping functions according to claim 1, characterized in that: The grip is integrally made of aluminum alloy material, with a sensor installation part at the bottom, a hollow structure at the middle part for holding by hand, and a wire passing hole at the top.

3. A micro manual acupuncture actuator with counting and mesh stripping functions according to claim 2, characterized in that: The grip is fixedly connected to the needle plate by a thread, and the optoelectronic sensor is fixed inside the grip by a bolt.

4. The micro manual acupuncture actuator with counting and mesh stripping functions according to claim 1, characterized in that: A needle blocking plate is installed at the center of one side of the needle plate facing the grip through a bolt connection, and the needle blocking plate is arranged behind the acupuncture needle.

5. A micro manual acupuncture actuator with counting and mesh stripping functions according to claim 1, characterized in that: The upper end of the telescopic rod is connected to the needle plate by a bolt, and the lower end of the telescopic rod is connected and fixed to the stripping plate by a thread. The telescopic rod is arranged outside the acupuncture needle.

6. The micro manual acupuncture actuator with counting and mesh stripping functions according to claim 1, characterized in that: The limiting rod is installed on the stripping plate by a thread connection. By rotating the limiting rod, the acupuncture depth can be changed, and the acupuncture depth is controlled between 10 mm and 20 mm.

7. A micro manual acupuncture actuator with counting and mesh stripping functions according to claim 1, characterized in that: The lower end of the counting rod is installed on the stripping plate by a thread connection, and the upper end of the counting rod moves inside the counting hole opened on the needle plate.

8. A micro manual acupuncture actuator with counting and stripping functions according to claim 1, characterized in that: The stripping plate is of a convex platform structure. The diameter of the convex platform part is 25 mm, and the overall thickness of the stripping plate is 20 mm. The diameter of the hole on the stripping plate is 2 mm larger than the diameter of the acupuncture needle.

9. A micro manual acupuncture actuator with counting and net stripping functions according to claim 1, characterized in that: The digital display counter is arranged outside the grip. The digital display counter is connected to the optoelectronic sensor through a data transmission line. The data transmission line passes out from the top of the grip.

10. The method of using the acupuncture actuator according to any one of claims 1-9, characterized in that, It includes the following steps: First, hold the top of the grip and place the stripping plate at the acupuncture site. Then, press down the grip to push the needle plate and the acupuncture needle forward. The telescopic rod contracts, and the acupuncture needle pierces into the fabric preform. The counting rod passes through the detection slot of the slot type optoelectronic sensor. At this time, after the optoelectronic sensor detects the counting rod, it transmits a signal to the digital display counter for acupuncture counting. When the needle plate continues to move forward and touches the limiting rod, the target acupuncture depth is reached. Then, lift the grip, and the spring pushes the telescopic rod back to the initial point, and the stripping plate realizes stripping, completing one acupuncture and counting.

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