Needling device suitable for special-shaped composite material prefabricated body

Abstract

The invention relates to the technical field of needling machine equipment, in particular to a needling device suitable for a special-shaped composite material preform, which comprises a mounting seat, a speed reducing motor is connected to the mounting seat, the output end of the speed reducing motor is connected with a rotating shaft, the rotating shaft is connected with an eccentric through hole of an eccentric wheel, and the eccentric wheel is rotatably connected in a cylindrical needle bearing; the cylindrical needle bearing is inserted into a second through hole in the end of the push plate, the push plate is in sliding fit with the mounting base, the other end of the push plate is connected with the quick-change needle row, the other end of the quick-change needle row faces the tool, the bottom of the mounting base is connected with the horizontal moving part, and the quick-change needle row is adjusted to face the normal direction of a prefabricated body and conducts needling on the prefabricated body. The surface of the R-angle prefabricated body and the surface of the conical prefabricated body can be needled, and then the purpose of tight combination of fibers in the prefabricated body is achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of needle loom equipment, in particular to a needle loom device suitable for special-shaped composite material preform. BACKGROUND

[0002] The needle loom is a key equipment widely used in the field of non-woven fabric production, and its core function is to reinforce the loose fiber web (or fiber layer) i.e. preform into non-woven material with certain strength, density and thickness through mechanical needle punching.

[0003] However, there are still deficiencies in the prior art. The ordinary needle loom can only needle the material in the plane state, but cannot needle the special-shaped preform with a three-dimensional shape. SUMMARY

[0004] The present application provides a needle loom device suitable for special-shaped composite material preform to solve the problems in the background art.

[0005] In order to achieve the above-mentioned application purposes, the present application provides the following technical scheme: a needle loom device suitable for special-shaped composite material preform, comprising: a mounting seat, a reduction motor connected to the mounting seat, a rotating shaft connected to the output end of the reduction motor, an eccentric hole of an eccentric wheel connected to the rotating shaft, the eccentric wheel rotatably connected in a cylindrical needle roller bearing, the cylindrical needle roller bearing inserted in a through hole two of an end of a push plate, the push plate in sliding fit with the mounting seat, the other end of the push plate connected with a quick-change needle row, the other end of the quick-change needle row facing a tool setting, and the bottom of the mounting seat connected with a horizontal moving part.

[0006] Preferably, the quick-change needle row comprises: a backing plate, a mounting seat two, mounting grooves and insertion holes, the other end of the push plate connected with the end face of the mounting seat two through the backing plate, the end face of the mounting seat two provided with a plurality of mounting grooves, and the insertion holes provided in the mounting grooves.

[0007] Preferably, the quick-change needle row further comprises: L-shaped needles, the insertion holes inserted with the L-shaped needles, the tips of the L-shaped needles away from the other end face of the mounting seat two and facing the tool setting, and the short sides of the L-shaped needles in contact fit with the inner walls of the mounting grooves.

[0008] Preferably, the horizontal moving part comprises: a mounting plate, the bottom of the mounting seat connected with the top of the mounting plate, the bottom of the mounting plate threadedly connected with a screw rod, the screw rod rotatably connected with a mounting seat three, the end of the screw rod connected with the output end of a second motor, the second motor connected with the mounting seat three, the mounting seat three in sliding fit with the mounting plate, and the bottom of the mounting seat three connected with a lifting part.

[0009] Preferably, the lifting piece comprises a base, a vertical plate connected to the base, a mounting base three connected to the vertical plate in a longitudinal sliding manner, a motor three connected to the mounting base three, and a guide wheel connected to the output end of the motor three and in frictional fit with the side of the vertical plate.

[0010] Preferably, the top and the bottom of the backing plate are connected to the end of a limiting plate, respectively, and the other end of the limiting plate is arranged away from the backing plate, and two insertion holes two are formed in the other end face of each limiting plate.

[0011] Preferably, the other end of the push plate is connected to two slide rails, the opening ends of the two slide rails are arranged opposite to each other, each slide rail is in sliding fit with a limiting plate, respectively, a plurality of screw holes are formed in the inner wall of each slide rail, each screw hole is in threaded connection with a screw two, and the end of the screw two arranged in the slide rail is in insertion fit with the insertion hole two.

[0012] Preferably, a plurality of mounting holes are formed in the mounting plate, a screw is inserted into each mounting hole, respectively, the screw is in threaded connection with a screw hole two in the bottom of the mounting base, a plurality of screw hole two are arranged in the bottom of the mounting base in a circumferential array, and the bottom of the mounting base is rotatably connected to the top of the mounting plate through a steering shaft.

[0013] Preferably, the end of the tooling is arranged towards the tip of the L-shaped lancet, the other end of the tooling is connected to a rotating shaft two through a mounting rod, the rotating shaft two is rotatably connected to the frame, the end of the rotating shaft two is connected to the output end of a motor four, the motor four is connected to the frame, the frame is slidably connected to the base, the bottom of the frame is connected to a mounting rod two, and the mounting rod two is connected to an intermittent piece.

[0014] Preferably, the intermittent piece comprises a rack, the mounting rod two is connected to the rack, the rack is in meshing connection with a gear, the gear is connected to a rotating shaft three, the rotating shaft three is rotatably connected to the base, a column-shaped tooth on the rotating shaft three is in meshing connection with an adjustable crown gear arc, and the adjustable crown gear arc is connected to the output end of a driving piece.

[0015] The beneficial effects of the present application are as follows:

[0016] In the scheme of the present application:

[0017] Adjusting the normal direction of the quick-change needle row towards the prefabricated body and performing needle punching on the prefabricated body can realize needle punching on the surface of the R-angle prefabricated body and the conical prefabricated body, and further realize the purpose of tight combination of fibers in the prefabricated body. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 The figure is a schematic diagram of the main structure of the present application;

[0019] Figure 2 The figure is a schematic diagram of the push plate structure of the present application;

[0020] Figure 3The eccentric wheel structure schematic diagram of the present application;

[0021] Figure 4 The explosive diagram of the quick-change needle row of the present application;

[0022] Figure 5 The structure schematic diagram of the mounting seat two of the present application;

[0023] Figure 6 The jack opening position schematic diagram of the present application;

[0024] Figure 7 The motor three and guide wheel connection relationship schematic diagram of the present application;

[0025] Figure 8 The jack two opening position schematic diagram of the present application;

[0026] Figure 9 The mounting plate sectional view of the present application;

[0027] Figure 10 The mounting rod and rotating shaft two connection relationship schematic diagram of the present application;

[0028] Figure 11 The column type tooth and adjustable crown gear arc meshing connection relationship schematic diagram of the present application;

[0029] Figure 12 The sector-shaped magnetic separation plate structure schematic diagram of the present application;

[0030] Figure 13 The connecting arc magnet relative position relationship schematic diagram of the present application;

[0031] Figure 14 The ratchet structure schematic diagram of the present application;

[0032] Figure 15 The vertical rod and unlocking rod connection relationship schematic diagram of the present application;

[0033] Figure 16 The tooth block structure schematic diagram of the present application;

[0034] Figure 17 The adjustable crown gear arc and sector-shaped magnetic separation plate relative position relationship schematic diagram of the present application;

[0035] Figure 18 The arc-shaped blocking ring structure schematic diagram of the present application.

[0036] Wherein: the mounting seat 1, the push plate 2, the cylindrical needle roller bearing 3, the eccentric wheel 4, the rotating shaft 5, the speed reducer motor 6, the quick-change needle row 7, the backing plate 8, the mounting seat two 9, the mounting groove 10, the insertion hole 11, the L-shaped needle 12, the connecting arc 13, the mounting seat three 14, the screw 15, the motor two 16, the mounting plate 17, the vertical plate 18, the base 19, the motor three 20, the guide wheel 21, the limiting plate 22, the insertion hole two 23, the sliding rail 24, the screw two 25, the bolt 26, the mounting rod 27, the rotating shaft two 28, the frame 29, the motor four 30, the mounting rod two 31, the rack 32, the gear 33, the rotating shaft three 34, the column-shaped tooth 35, the adjustable crown gear arc 36, the motor five 37, the rotating disc 38, the rotating disc two 39, the arc-shaped groove 40, the tooth arc 41, the stop block 42, the chamfer 43, the sector-shaped magnetic separation plate 44, the magnet 45, the handle 46, the bolt two 47, the rotating shaft four 48, the torsional spring 49, the ratchet 50, the vertical rod 51, the spring 52, the unlocking rod 53, the unlocking rod two 54, the tooth block 55, the rack two 56, the spring two 57, the arc-shaped blocking ring 58, the return spring 59. DETAILED DESCRIPTION

[0037] The preferred embodiments of the present application are described below in conjunction with the accompanying drawings, which should be understood as merely illustrative and explanatory, and not limiting the present application.

[0038] Embodiment one: reference Figures 1-18 A needle punching device suitable for profiled composite material preform, comprising: a mounting seat 1, a speed reducer motor 6 connected to the mounting seat 1, an output end of the speed reducer motor 6 connected with a rotating shaft 5, the rotating shaft 5 connected with an eccentric through hole of an eccentric wheel 4, the eccentric wheel 4 rotatably connected in a cylindrical needle roller bearing 3, the cylindrical needle roller bearing 3 inserted in a through hole two of an end of a push plate 2, the push plate 2 slidably connected with the mounting seat 1, the other end of the push plate 2 connected with a quick-change needle row 7, the other end of the quick-change needle row 7 towards a tool, and the bottom of the mounting seat 1 connected with a horizontal moving piece.

[0039] The principle of the above scheme is:

[0040] The preform is installed on the tool, the end of the mounting seat 1 is adjusted to be perpendicular to the normal line of the preform, so that the end of the quick-change needle row 7 is towards the normal line direction of the preform, then the speed reducer motor 6 is started, the output end of the speed reducer motor 6 drives the rotating shaft 5 to rotate, the rotating shaft 5 drives the eccentric wheel 4 to rotate through the eccentric through hole, the eccentric wheel 4 drives the push plate 2 to reciprocatingly slide on the mounting seat 1 through the cylindrical needle roller bearing 3, so as to drive the quick-change needle row 7 to needle punch the preform and the R angle part of the preform, the R angle of the preform is specifically a round angle between a straight line part and an inclined surface part of the preform;

[0041] The speed reducer motor 6 is specifically a driving assembly composed of a motor and a speed reducer.

[0042] The beneficial effects of the above scheme are:

[0043] Adjusting the fast-changing needle row 7 to the normal direction of the preform and needling it can achieve the needling of the surface of the R-angle preform and the conical preform, thereby realizing the purpose of the tight combination of the fibers inside the preform;

[0044] The eccentric amount of the eccentric wheel 4 is converted into the stroke of the needling during the needling process. Since the rotating power of the eccentric wheel 4 comes from the speed reducer motor 6, the fast-changing needle row 7 can obtain a larger needling force and the needling force is stable during the needling process, and is not affected by factors such as air pressure, so the needling quality is high;

[0045] The eccentric wheel 4 is rotationally connected with the cylindrical needle bearing 3, so that the bearing part can withstand a larger impact force to effectively prolong the service life of the parts, which not only ensures the stability of the device during work, but also avoids frequent maintenance and maintenance of the parts by the user.

[0046] Embodiment two: reference Figures 1-18 The other end of the push plate 2 is connected with the end face of the mounting seat two 9 through the pad plate 8, the end face of the mounting seat two 9 is provided with a plurality of mounting grooves 10, and the mounting grooves 10 are provided with the insertion hole 11.

[0047] The fast-changing needle row 7 further comprises an L-shaped needle 12, the insertion hole 11 is inserted with the L-shaped needle 12, the tip of the L-shaped needle 12 is away from the other end face of the mounting seat two 9 and is arranged towards the tool, and the short side of the L-shaped needle 12 is in contact with the inner wall of the mounting groove 10.

[0048] The principle and beneficial effects of the above scheme are:

[0049] The other end of the push plate 2 is connected with the end face of the mounting seat two 9 through the pad plate 8, the end face of the mounting seat two 9 is provided with a plurality of mounting grooves 10, and the mounting grooves 10 are provided with the insertion hole 11.

[0050] Further, the phenomenon that the L-shaped needle 12 is stuck in the preform during the needling can be avoided, and the phenomenon that the consumer is injured during use can be prevented;

[0051] The L-shaped needling needle 12 can be limited by the inner wall of the mounting groove 10, thereby avoiding the rotation of the L-shaped needling needle 12 during needling, further avoiding the friction between the L-shaped needling needle 12 and the insertion hole 11, preventing the wear of the L-shaped needling needle 12, and further avoiding the change of the perpendicularity of the L-shaped needling needle 12 after wear occurs, so that the fiber density of the preform after needling can be avoided to be uneven, the thickness, strength or air permeability of the product can be avoided to be reduced, and the surface of the preform can be avoided to be bulged or depressed, and the surface can be avoided to be flawed;

[0052] The prevention of the rotation of the L-shaped needling needle 12 can not only avoid the bending of the needling needle part, but also avoid the obvious cracks or fractures of the L-shaped needling needle 12 itself, and reduce the influence of the lateral stress on the structural strength of the part during work;

[0053] Meanwhile, the prevention of the rotation of the L-shaped needling needle 12 can also avoid the metal debris entering into the preform after the wear of the L-shaped needling needle 12 itself, thereby avoiding the damage of the metal debris to the fiber structure, preventing the occurrence of the phenomena of stress concentration, reduced tensile resistance and easy tearing;

[0054] After the limitation of the metal debris, the normal entanglement of the fiber can be avoided to be hindered by the debris, the density of the preform is ensured to be uniform, and the air permeability, filtration efficiency and sound and heat insulation effect of the preform are ensured.

[0055] Embodiment three: Figures 1-18 The horizontal moving part comprises a mounting plate 17, the bottom of the mounting seat 1 is connected with the top of the mounting plate 17, the bottom of the mounting plate 17 is threadedly connected with a screw rod 15, the screw rod 15 is rotationally connected with a mounting seat three 14, the end of the screw rod 15 is connected with the output end of a motor two 16, the motor two 16 is connected with the mounting seat three 14, the mounting seat three 14 is slidingly matched with the mounting plate 17, and the bottom of the mounting seat three 14 is connected with a lifting part.

[0056] The principle and beneficial effects of the above scheme are:

[0057] The mounting plate 17 is used for being connected with the mounting seat 1, and adjusts the included angle between the mounting seat 1 and the mounting plate 17 based on the structure and shape of the preform. After the preform is clamped on the tooling, the motor two 16 can be started, the output end of the motor two 16 drives the screw rod 15 to rotate forward or reverse on the mounting seat three 14, the mounting plate 17 threadedly connected with the screw rod 15 approaches or moves away from the tooling under the sliding cooperation of the mounting seat three 14, and finally drives the L-shaped needling needle 12 to approach or move away from the preform, thereby avoiding the phenomenon that the gap between the L-shaped needling needle 12 and the preform is too large, the preform cannot be completely pierced, and the needling efficiency is further ensured;

[0058] When the preform is a multi-layer composite structure, appropriate spacing adjustment can achieve differential entanglement of the L-shaped needles 12 between different layers, thereby making it easier for the device to process medical protective materials, thereby increasing the scope of application of the device.

[0059] Example 4: Reference Figures 1-18 The lifting member includes: a base 19, a vertical plate 18 is connected to the base 19, the vertical plate 18 is longitudinally slidably connected to the mounting seat 3 14, a motor 3 20 is connected to the mounting seat 3 14, and a guide wheel 21 connected to the output end of the motor 3 20 is frictionally engaged with the side of the vertical plate 18.

[0060] The principles and beneficial effects of the above scheme are:

[0061] The device is further connected to the vertical plate 18 on the base 19, and the mounting seat three 14 is longitudinally slidably connected to the vertical plate 18, and the height adjustment of the mounting seat three 14 can be achieved by the friction cooperation between the guide wheel 21 and the side of the vertical plate 18. The specific working method is to start the motor three 20 on the mounting seat three 14, and the output end of the motor three 20 drives the guide wheel 21 to rotate forward or reverse. Under the friction effect of the guide wheel 21 on the side of the vertical plate 18 and the sliding cooperation between the mounting seat three 14 and the vertical plate 18, the mounting seat three 14 can be moved up or down along the vertical plate 18, thereby adjusting the height of the L-shaped needle 12, further realizing the precise adjustment of the position of the L-shaped needle 12 by the mechanism, so as to realize acupuncture of preforms of different heights, different positions and different shapes.

[0062] Example 5: Reference Figures 1-18 The top and bottom of the pad 8 are each connected to the end of a limit plate 22, and the other end of the limit plate 22 is set away from the pad 8. Two jacks 23 are opened on the other end surface of each limit plate 22.

[0063] The other end of the push plate 2 is connected to two slide rails 24, and the open ends of the two slide rails 24 are arranged opposite to each other. Each slide rail 24 slides with a limit plate 22 respectively. A plurality of screw holes are opened on the inner wall of each slide rail 24, and each screw hole is threadedly connected to a screw rod 25. The end of the screw rod 25 placed in the slide rail 24 is plugged into the socket 23.

[0064] The other end of the second screw rod 25 is arranged away from the push plate 2.

[0065] The principles and beneficial effects of the above scheme are:

[0066] After a period of use, the working part of the L-shaped needle 12 will wear out. In this case, in order to avoid the decrease in acupuncture efficiency, vibration or noise caused by the imbalance of the device due to the wear of the needle part, and the occurrence of needle jamming, the L-shaped needle 12 needs to be replaced.

[0067] At this time, the screw two 25 is reversed, the screw two 25 is separated in the screw hole, and the end of the screw two 25 ends the plug-in cooperation with the jack two 23, the limiting plate 22 ends the horizontal limiting in the slide rail 24 with the pad plate 8, and then the mounting base two 9 can be pushed left or right, the pad plate 8 is synchronously moved under the driving of the mounting base two 9, then a new pad plate 8 is replaced, the limiting plate 22 is plugged into the slide rail 24 of the push plate 2, the screw two 25 is rotated, the screw two 25 moves to the jack two 23 on the limiting plate 22 under the action of the screw thread connection, until the plug-in cooperation between the two parts is implemented, the replacement of the new L-shaped needle 12 is completed, and the device continues to work, the time used by the device during replacement of parts is reduced, and the production efficiency of the product is further improved;

[0068] The end of the screw two 25 is arranged between the two slide rails 24 and is plugged into the jack two 23, so that the end of the screw two 25 is prevented from being affected by moisture and rusted during use, if the end of the screw two 25 is worn or damaged, the damaged part can be plugged into the jack two 23 alone, so that whether the part still has use value is checked by whether the mounting base two 9 moves relative to the push plate 2, if the part still has use value, the waste of parts can be reduced, and if the part is damaged and cannot lock the pad plate 8, the part should be replaced immediately;

[0069] The plug-in cooperation of the screw two 25 and the jack two 23 not only improves the stability of the mounting base two 9, thereby increasing the stability of the L-shaped needle 12 during needling, but also facilitates quick replacement of the pad plate 8.

[0070] Embodiment six: Figures 1-18 A plurality of mounting holes are formed in the mounting plate 17, and a bolt 26 is plugged into each mounting hole. The bolt 26 is in threaded connection with a screw hole two at the bottom of the mounting base 1. A plurality of screw hole twos are arranged in a circumferential array at the bottom of the mounting base 1. The bottom of the mounting base 1 is rotationally connected to the top of the mounting plate 17 through a steering shaft.

[0071] The principle and advantages of the above scheme are as follows:

[0072] Different prefabricated bodies have different normal directions on the tooling, so when the different prefabricated bodies are needled, the angle between the mounting base 1 and the mounting plate 17 needs to be adjusted. The top of the mounting base 1 is connected to the bottom of the steering shaft, and the bottom of the steering shaft is rotationally connected to the top of the mounting plate 17. When the angle needs to be adjusted, the included angle between the mounting base 1 and the mounting plate 17 is adjusted first, then the bolt 26 is inserted into the mounting hole of the mounting plate 17, the bolt 26 is coaxially arranged with a screw hole two at the bottom of the mounting base 1, then the bolt 26 is rotated to be in threaded connection with the screw hole two, so that the mounting base 1 is fixed to end the angle adjustment of the parts.

[0073] Embodiment Seven: Refer to Figures 1-18 , the end of the tool is arranged towards the tip of the L-shaped needle 12, the other end of the tool is connected with the second rotating shaft 28 through the mounting rod 27, the second rotating shaft 28 is rotationally connected with the frame 29, the end of the second rotating shaft 28 is connected with the output end of the fourth motor 30, the fourth motor 30 is connected with the frame 29, the frame 29 is slidingly connected on the base 19, the mounting rod two 31 is connected on the bottom of the frame 29, and the intermittent piece is connected on the mounting rod two 31.

[0074] The principle and beneficial effects of the above scheme are:

[0075] The end of the tool is arranged towards the tip of the L-shaped needle 12, which facilitates the prefabricated body on the tool to be pricked by the L-shaped needle 12, the other end of the tool is connected with the second rotating shaft 28 through the mounting rod 27, when the height of the prefabricated body needs to be adjusted, the fourth motor 30 is started to drive the output end to rotate forward, thereby realizing the upward movement of the height of the prefabricated body, when the surface in the height direction of the prefabricated body is pricked, the frame 29 is moved to the end of the base 19, under the sliding connection between the frame 29 and the base 19, the intermittent piece on the mounting rod two 31 moves the prefabricated body, the distance of the movement is equal to the width of the pricking surface formed by the plurality of L-shaped needles 12, the intermittent piece can make the distance of the movement of the prefabricated body equal to the width of the plurality of L-shaped needles 12 each time, so that the surface of the prefabricated body can be fully pricked, and there is no pricking blind area, thereby ensuring the quality of the product.

[0076] When the movement of the prefabricated body is completed, the fourth motor 30 is started again to drive the output end to rotate reversely, thereby driving the second rotating shaft 28 to rotate reversely, the tool drives the prefabricated body to move downward, when the second pricking starts, the fourth motor 30 is started to work, thereby enabling the L-shaped needle 12 to fully prick the surface of the prefabricated body from top to bottom, the combination of the full pricking in the height direction and the width direction of the prefabricated body ensures the uniformity of the density of the fibers in the prefabricated body after pricking and the combination effect between the fibers.

[0077] Embodiment Eight: Refer to Figures 1-18 , the intermittent piece comprises: a rack 32, the mounting rod two 31 is connected with the rack 32, the rack 32 is meshingly connected with a gear 33, the gear 33 is connected with a third rotating shaft 34, the third rotating shaft 34 is rotationally connected with the base 19, a column-shaped tooth 35 on the third rotating shaft 34 is meshingly connected with an adjustable crown gear arc 36, and the adjustable crown gear arc 36 is connected with the output end of the driving piece.

[0078] The principle and beneficial effects of the above scheme are:

[0079] The arc length of the adjustable crown gear arc 36 can be adjusted, so that when the adjustable crown gear arc 36 is meshed with the column-shaped teeth 35, the rotating shaft three 34 drives the gear 33 to rotate, and then the rack 32 meshed with the gear 33 drives the mounting rod two 31 to move, and the frame body 29 moves synchronously under the cooperation of the base 19. Since the width of the needle array composed of a plurality of L-shaped needles 12 is known, the corresponding arc length of the adjustable crown gear arc 36 can be inferred, so that the mechanism can perform intermittent motion with different moving distances according to the actual situation. On this basis, not only the complexity of the device is reduced, but also the practicability and adaptability to different working conditions of the device are improved.

[0080] Embodiment nine: Figures 1-18 The driving member comprises a motor five 37, the motor five 37 is connected to the base 19, a rotating disc 38 and a rotating disc two 39 are connected to the output shaft of the motor five 37 at intervals, an arc-shaped groove 40 is formed in the rotating disc 38, a plurality of arc-shaped stop rings 58 are connected to the inner wall of the arc-shaped groove 40, the arc-shaped stop rings 58 are arranged in series, the inner wall of the arc-shaped groove 40 and the side wall of the plurality of tooth arcs 41 are in sliding fit, two adjacent tooth arcs 41 are in sliding fit, the bottom of the tooth arc 41 is connected to the end of the connecting arc 13, the plurality of tooth arcs 41 are in sliding fit to form the adjustable crown gear arc 36, the end of the tooth arc 41 is away from the rotating disc 38 and is arranged towards the motor five 37, the tooth arc 41 is meshed with the column-shaped teeth 35, the cross section of the tooth arc 41 is larger than that of the connecting arc 13, each arc-shaped stop ring 58 is slidably connected with a connecting arc 13, the connecting arc 13 is connected with a stop block 42, the stop block 42 is arranged between the rotating disc 38 and the rotating disc two 39 and is in contact with one end of the arc-shaped stop ring 58, the other end of the arc-shaped stop ring 58 is in contact with the other end of the tooth arc 41, the other end of the connecting arc 13 is provided with a chamfer 43, the chamfer 43 is in sliding fit with the side wall of the sector-shaped magnetic separation plate 44, the end of the sector-shaped magnetic separation plate 44 is in rotating fit with the output shaft of the motor five 37, the other end of the connecting arc 13 is connected with a magnet 45, the magnet 45 is arranged adjacent to the chamfer 43, the magnet 45 is a neodymium iron boron magnet, the magnet 45 is magnetically attracted to the rotating disc two 39, a handle 46 is connected to the other end side wall of the sector-shaped magnetic separation plate 44, a bolt two 47 is threadedly connected to the handle 46, the chamfer 43 is arranged towards the bolt two 47, the end of the bolt two 47 is inserted into a lock hole, and a plurality of lock holes are arranged in a circumferential array on the side wall of the rotating disc 38.

[0081] The materials of the rotating disc 38 and the sector-shaped magnetic separation plate 44 are both aluminum.

[0082] The rotating disc two 39 is made of carbon steel.

[0083] The rotating disc two 39 is in rotating fit with the sector-shaped magnetic separation plate 44.

[0084] The principle and beneficial effects of the above scheme are:

[0085] When the mechanism is in intermittent motion, the motor five 37 is started, its output shaft drives the rotating disc 38 and the rotating disc two 39 to rotate synchronously, and then the tooth arc 41 in the arc-shaped groove 40 rotates synchronously to realize intermittent meshing connection with the column-shaped teeth 35;

[0086] When the distance of intermittent motion needs to be increased, the bolt two 47 is rotated in reverse, the end thereof is disengaged from the lock hole of the side wall of the rotating disc 38, and the handle 46 is rotated clockwise. Under the rotating cooperation of the output shaft of the motor five 37, the fan-shaped magnetic separation plate 44 rotates clockwise synchronously. The side wall of the fan-shaped magnetic separation plate 44 in the clockwise direction contacts and cooperates with the chamfer 43 of the connecting arc 13. Under the sliding cooperation of the arc-shaped groove 40, the magnet 45 at the other end of the connecting arc 13 is separated from the magnetic attraction of the rotating disc two 39. Under the limiting of the arc-shaped stop ring 58 and the stop block 42 on the fan-shaped magnetic separation plate 44 and the connecting arc 13, the end of the tooth arc 41 received in the arc-shaped stop ring 58 protrudes from the rotating disc 38 and can be meshed with the column-shaped teeth 35. At this time, the arc length of the adjustable crown gear arc 36 is increased. If a longer arc length of the adjustable crown gear arc 36 is needed, the fan-shaped magnetic separation plate 44 only needs to be continuously rotated clockwise until the arc length of the adjustable crown gear arc 36 reaches the working requirement. After adjustment, the bolt two 47 is forward rotated to be inserted into the opposite lock hole, and the motor five 37 is started to work;

[0087] When the moving distance of intermittent motion needs to be reduced, first, the bolt two 47 is disengaged from the insertion cooperation with the lock hole, and then the fan-shaped magnetic separation plate 44 is rotated counterclockwise. When the magnet 45 is separated from the contact with the fan-shaped magnetic separation plate 44, the magnet 45 faces the rotating disc two 39. With the counterclockwise movement of the fan-shaped magnetic separation plate 44, the side wall of the fan-shaped magnetic separation plate 44 contacts and cooperates with the chamfer 43. Under the action of the magnetic force, the tooth arc 41 and the connecting arc 13 gradually move towards the rotating disc two 39 until the magnet 45 starts to be magnetically attracted to the rotating disc two 39 again. The end of the tooth arc 41 is received in the arc-shaped groove 40. At this time, the tooth arc 41 will not be meshed with the column-shaped teeth 35 in the rotating process. The other end of the tooth arc 41 contacts and cooperates with the arc-shaped stop ring 58 at this time. The arc-shaped groove 40 can protect the end of the tooth arc 41 after contraction from contacting other parts in the device during rotation, causing impact or wear;

[0088] After the arc length of the adjustable crown gear arc 36 reaches the working requirement, the counterclockwise rotation of the fan-shaped magnetic separation plate 44 is stopped. At this time, the bolt two 47 is inserted into the lock hole again, and the motor five 37 is started to work;

[0089] The chamfer 43 is arranged to facilitate the lifting of the connecting arc 13 and the tooth arc 41 when the sector-shaped magnetic plate 44 moves clockwise, and the chamfer 43 is used for sliding friction between the side wall of the sector-shaped magnetic plate 44 and the chamfer 43. In the process of separating from the sector-shaped magnetic plate 44, the height of the connecting arc 13 and the tooth arc 41 gradually decreases through the sliding friction of the chamfer 43 until the magnet 45 contacts and magnetically attracts the rotating disc two 39. Therefore, it can prevent the impact between the two during the magnetic attraction process, thereby avoiding the damage of the parts, and at the same time, on the basis of avoiding the impact, it can avoid the rupture between the connecting arc 13 and the tooth arc 41, and also avoid the damage of the magnet 45 caused by the impact;

[0090] Since the magnet 45 is arranged on the connecting arc 13, the magnetic force provided by the magnet 45 is sufficient to attract the connecting arc 13 to the rotating disc two 39. Compared with the rotating disc two 39 arranged as a magnetic rotating disc component, the connecting arc 13 cannot be lifted by the sector-shaped magnetic plate 44 due to excessive magnetic force of the rotating disc two 39. The rationality of the device in use is improved, and the amount of magnetic material used in the device is less, which facilitates the effective control of the cost of the device during manufacturing;

[0091] The tooth arc 41 is arranged on one side of the arc-shaped stop ring 58, and the stop block 42 is arranged on the other side of the arc-shaped stop ring 58. Therefore, the arc-shaped stop ring 58 can limit the tooth arc 41 to prevent it from falling off during use or when it is stopped, thereby avoiding injury to surrounding personnel or equipment during production.

[0092] One end of the arc-shaped stop ring 58 is in contact with the stop block 42, and the other end of the arc-shaped stop ring 58 is in contact with the other end of the tooth arc 41. The adjacent two tooth arcs 41 are in sliding fit, which can not only prevent the tooth arc 41 from falling off, but also will not affect the meshing failure area of the adjustable crown gear arc 36 composed of multiple tooth arcs 41 and the column-shaped tooth 35.

[0093] Example ten: reference Figures 1-18 The end of the rotating disc two 39 away from the sector-shaped magnetic plate 44 is circumferentially connected with the end of a plurality of rotating shafts four 48, the mounting ring of the rotating shaft four 48 is connected with the end of a torsion spring 49, the torsion spring 49 is connected with the end of a ratchet 50, the ratchet 50 is rotationally connected with the rotating shaft four 48, the other end of the ratchet 50 is arranged away from the rotating direction of the rotating disc two 39, the arc surface of the ratchet 50 is in contact with the spherical surface of the top of a vertical rod 51, the bottom of the vertical rod 51 is in sliding fit with the base 19, and the vertical rod 51 is connected with the base 19 through a spring 52.

[0094] The other side of the stand 51 is connected with the end of the unlocking rod 53, the top of the unlocking rod 53 is slidingly connected with the bottom end of the unlocking rod two 54, the top end of the unlocking rod two 54 is connected with the tooth block 55, the inclined surface of the tooth block 55 is arranged towards the rack two 56, the tooth block 55 and the unlocking rod 53 are connected through the spring two 57, the rack two 56 is connected with the mounting rod two 31, and the end of the mounting rod two 31 is connected with the base 19 through the reset spring 59.

[0095] The other end of the ratchet 50 is arranged away from the center of the rotating disc two 39.

[0096] The principle and beneficial effects of the above scheme are:

[0097] When the motor five 37 performs intermittent movement to the rack 32, the rotating disc two 39 rotates synchronously, at this time the ratchet 50 rotates synchronously under the drive of the rotating shaft four 48, when the arc surface of a ratchet 50 contacts with the ball top of the top of the vertical rod 51, the other end of the ratchet 50 will move to the center of the rotating disc two 39, at this time the vertical rod 51 will not move and the torsional spring 49 stores energy, and after ending the contact with the ball top, the ratchet 50 will reset under the elastic force of the torsional spring 49, at this time the mounting rod two 31 will perform intermittent movement synchronously, and the return spring 59 will be compressed, in order to prevent the elastic force of the compressed return spring 59 gradually increasing, causing the reverse movement of the mounting rod two 31, or the intermittent movement cannot be normally implemented, at this time the rack two 56 connected to the mounting rod two 31 performs intermittent movement synchronously, at the same time the teeth on it push the inclined surface of the tooth block 55, the tooth block 55 moves downward and moves downward under the guidance of the unlocking rod 53, the spring two 57 is compressed synchronously, until the intermittent movement ends, the unlocking rod two 54 moves upward under the elastic force of the spring two 57, driving the tooth block 55 to move upward, and locking the rack two 56 to prevent the reset of the mounting rod two 31; when the intermittent movement of the device in one direction ends, at this time only need to rotate the rotating disc two 39 in the opposite direction for a distance, the other end of the ratchet 50 on it will move to the vertical rod 51, under the elastic force of the torsional spring 49, since the other end of the ratchet 50 is away from the center of the rotating disc two 39, at this time the other end of the ratchet 50 is arranged towards the side wall of the vertical rod 51, exerting a lateral pushing force on the side of the vertical rod 51, the movement of the vertical rod 51 drives the unlocking rod 53 and the tooth block 55 to move synchronously, the spring 52 deforms synchronously, thereby ending the locking of the rack two 56, under the elastic force of the reset spring 59, the mounting rod two 31 resets on the base 19, further the tool resets synchronously, preparing for the next needle sticking to the new preform, the mounting rod two 31 in the reset will move repeatedly on the base 19 under the elastic force of the reset spring 59, at this time in order to avoid the tooth block 55 causing the tooth clash to the rack two 56 in the movement, the reset of the tooth block 55 can be delayed, when the mounting rod two 31 is stationary, only need to rotate the rotating disc two 39 again, so that the ratchet 50 is separated from the contact with the vertical rod 51, the tooth block 55 resets under the elastic force of the spring 52, preparing for the next work; the tool in the vibration state can vibrate the fibers on it due to the needle sticking, preventing the phenomenon of fiber accumulation causing incomplete needle sticking to the new preform when installing the new preform again, at the same time can reduce the difficulty of fiber cleaning, and preventing the fiber from damaging the parts in the device.

[0098] While embodiments of the application have been disclosed in connection with the above specification and drawings this description is not intended to limit the scope of the application and many modifications, enhancements, alternatives, and variations will become apparent to those skilled in the art from this disclosure. Accordingly, it is intended that the application not be limited to the described embodiments, but that it include all variations falling within the scope of the claims, and their equivalents.

Claims

1. A needle punching device suitable for special-shaped composite material preforms, characterized in that: include: The mounting seat (1) is connected to a reduction motor (6), the output end of the reduction motor (6) is connected to the rotating shaft (5), the rotating shaft (5) is connected to the eccentric through hole of the eccentric wheel (4), the eccentric wheel (4) is rotatably connected in the cylindrical needle roller bearing (3), the cylindrical needle roller bearing (3) is inserted into the second through hole at the end of the push plate (2), the push plate (2) and the mounting seat (1) are slidably matched, the other end of the push plate (2) is connected to the quick-change needle row (7), the other end of the quick-change needle row (7) is arranged toward the tooling, and the bottom of the mounting seat (1) is connected to the horizontal moving part.

2. The needling device for special-shaped composite material preforms according to claim 1, characterized in that: The quick-change needle row (7) includes a pad (8), the other end of the push plate (2) is connected to the end face of the second mounting seat (9) through the pad (8), the end face of the second mounting seat (9) is provided with a plurality of mounting grooves (10), and the mounting grooves (10) are provided with jacks (11).

3. The needling device for special-shaped composite material preforms according to claim 2, characterized in that: The quick-change needle row (7) also includes: an L-shaped needle (12), the L-shaped needle (12) is inserted into the socket (11), the tip of the L-shaped needle (12) is away from the other end surface of the second mounting seat (9) and is arranged toward the tooling, and the short side of the L-shaped needle (12) is in contact with the inner wall of the mounting groove (10).

4. The needling device for special-shaped composite material preforms according to claim 1, characterized in that: The horizontal moving member comprises: a mounting plate (17); the bottom of the mounting seat (1) is connected to the top of the mounting plate (17); the bottom of the mounting plate (17) is threadedly connected to the screw (15); the screw (15) is rotationally connected to the mounting seat three (14); the end of the screw (15) is connected to the output end of the motor two (16); the motor two (16) is connected to the mounting seat three (14); the mounting seat three (14) is slidably matched with the mounting plate (17); and the bottom of the mounting seat three (14) is connected to the lifting member.

5. The needling device for special-shaped composite material preforms according to claim 4, characterized in that: The lifting member includes: a base (19), a vertical plate (18) connected to the base (19), the vertical plate (18) and the mounting seat three (14) are longitudinally slidably connected, the mounting seat three (14) is connected to the motor three (20), and the guide wheel (21) connected to the output end of the motor three (20) is frictionally matched with the side of the vertical plate (18).

6. The needling device for special-shaped composite material preforms according to claim 2, characterized in that: The top and bottom of the pad (8) are each connected to an end of a limiting plate (22), the other end of the limiting plate (22) is arranged away from the pad (8), and the other end surface of each limiting plate (22) is provided with two second insertion holes (23).

7. The needling device for special-shaped composite material preforms according to claim 6, characterized in that: The other end of the push plate (2) is connected to two slide rails (24), the open ends of the two slide rails (24) are arranged opposite to each other, each slide rail (24) is slidably matched with a limit plate (22), and a plurality of screw holes are opened on the inner wall of each slide rail (24), each screw hole is threadedly connected to a screw rod (25), and the end of the screw rod (25) placed in the slide rail (24) is plugged into the second socket (23).

8. The needling device for special-shaped composite material preforms according to claim 4, characterized in that: The mounting plate (17) is provided with a plurality of mounting holes, each of which is plugged with a bolt (26), the bolt (26) being threadedly connected to two screw holes at the bottom of the mounting seat (1), a plurality of screw holes being arranged in a circular array at the bottom of the mounting seat (1), and the bottom of the mounting seat (1) being rotatably connected to the top of the mounting plate (17) via a steering shaft.

9. The needling device for special-shaped composite material preforms according to claim 3, characterized in that: The end of the tooling is arranged toward the tip of the L-shaped needle (12), and the other end of the tooling is connected to the second rotating shaft (28) through the mounting rod (27), the second rotating shaft (28) is rotatably connected to the frame (29), the end of the second rotating shaft (28) is connected to the output end of the fourth motor (30), the fourth motor (30) is connected to the frame (29), the frame (29) is slidably connected to the base (19), the bottom of the frame (29) is connected to the second mounting rod (31), and the second mounting rod (31) is connected to an intermittent member.

10. The needling device for special-shaped composite material preforms according to claim 9, characterized in that: The intermittent member comprises: a rack (32), the second mounting rod (31) is connected to the rack (32), the rack (32) is meshed with a gear (33), the gear (33) is connected to a third rotating shaft (34), the third rotating shaft (34) is rotatably connected to the base (19), the columnar teeth (35) on the third rotating shaft (34) are meshed with an adjustable crown gear arc (36), and the adjustable crown gear arc (36) is connected to the output end of the driving member.

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