CN114645382B

CN114645382B - Carbon fiber composite product needling machine with advanced net pressing function

Info

Publication number: CN114645382B
Application number: CN202210320318.2A
Authority: CN
Inventors: 王卫成; 王利君; 王明刚; 周伟健
Original assignee: Changshu Weicheng Non Woven Equipment Co ltd
Current assignee: Changshu Weicheng Non Woven Equipment Co ltd
Priority date: 2022-03-29
Filing date: 2022-03-29
Publication date: 2023-03-10
Anticipated expiration: 2042-03-29
Also published as: CN114645382A

Abstract

A carbon fiber composite product needling machine with advanced net pressing function comprises a frame; the needle bar mechanism comprises a crankcase and a needle beam, wherein a main shaft is arranged in the crankcase, a cam transmission connecting rod is arranged in the middle of the main shaft, and a needle plate is arranged on one side of the needle beam; the main shaft driving mechanism is arranged at the top of the crankcase; the net peeling mechanism comprises a net peeling plate, a left net peeling plate lifting device and a right net peeling plate lifting device, the upper part of the left net peeling plate lifting device is connected with the left end of the main shaft, the lower part of the left net peeling plate lifting device is connected with one side of the net peeling plate, the upper part of the right net peeling plate lifting device is connected with the right end of the main shaft, the lower part of the right net peeling plate lifting device is connected with the other side of the net peeling plate, the needle beam drives the needle plate to move downwards and before the needles on the needle plate penetrate into the cloth, the left net peeling plate lifting device and the right net peeling plate lifting device drive the net peeling plate to move downwards in advance and press the cloth, and after the needle plate moves upwards after finishing the needling in one process and after the needles are removed from the cloth, the net peeling plate moves upwards and releases the press of the cloth; the net supporting plate corresponds to the lower part of the net stripping plate. The positioning of the product to be needled is good, and the net stripping is ideal.

Description

Carbon fiber composite product needling machine with advanced net pressing function

Technical Field

The invention belongs to the technical field of non-woven machinery, and particularly relates to a carbon fiber composite product needle machine with an advanced net pressing function.

Background

The above advanced net pressing can also be called advanced net pressing, and the advanced net pressing refers to: the needle board of the needle machine with the felting needles arranged thereon descends and is pressed by the needled product before contacting with the needled product, and after the felting needles on the needle board finish needling, the needle board and the felting needles displace upwards to withdraw the needled product, and then the felting plate of the net stripping mechanism ascends to release the net pressing.

Typical examples of the foregoing carbon fiber composite products are products in which both carbon fiber woven fabric and carbon fiber nonwoven fabric are needled to each other by a needling machine, and the number of layers of the two may be several layers, such as several tens or even more than one hundred layers, which are stacked one upon another and needled together, wherein each stacked layer is subjected to one process of needling, thereby obtaining products of desired grammage (total grammage), such as several hundred, thousands or even tens of thousands, per square meter, which can be used for military products such as missiles, aerospace products, heat insulating materials, new energy vehicles, solar energy, and the like, through desired subsequent processes.

As is known in the art, since the non-woven products such as non-woven fabrics and non-woven carpets have a large difference in the tensile strength in the longitudinal direction and, in particular, the tensile strength in the transverse direction is much lower than that in the longitudinal direction, the raw material carbon fibers of the carbon fiber non-woven fabrics are excellent in various properties such as small specific gravity, excellent heat resistance, small thermal expansion coefficient, large thermal conductivity, excellent corrosion resistance and electrical conductivity, and far superior in specific strength and specific modulus than those of ordinary reinforcing fibers (at least 3 times higher than steel and aluminum), but if they are not combined with the carbon fiber woven fabrics having warp and weft fibers, the overall tensile strength (the tensile strength in the longitudinal direction) is difficult to achieve the extreme level desired in the industry.

The position of the stripping plate of the structure system of the stripping mechanism on the known needle machine is adjusted and is static during the needle punching operation of the needle machine, that is, the stripping plate is always in a static state during the needle punching operation of the needle machine, for which reference is made to the following patent documents, which are not limited to CN108179552A (jacquard raising needle machine), CN108085875A (jacquard raising needle machine with improved structure), CN104911823A (bidirectional feeding needle machine), CN101492861B (automatic multifunctional needle machine), CN104911822A (needle machine), CN102031848A (endless papermaking felt machine), and so on.

The known web-stripping plates (also referred to in the industry as "fleece-stripping plates"), which are structured, for example, without being limited to the web-stripping means of the needle-punch patents mentioned above, do not need and in fact do not need to be moved up and down in accordance with the needling process by moving the needle plate up and down, since the grammage is substantially constant for the same batch of nonwoven products, i.e. the thickness of the fleece laid by the fleece-laying machine of the preceding process (fleece-laying process) is substantially the same, in particular the fibers between the fleece layers are entangled with one another. However, for the carbon fiber composite product, the carbon fiber nonwoven fabric and the carbon fiber woven fabric are gradually stacked in a state of being separated from each other, and needling is performed in one process for each stacked layer, so that the carbon fiber nonwoven fabric or the carbon fiber woven fabric stacked on the uppermost layer has no combination or connection relationship with each other before entering needling, and thus the carbon fiber nonwoven fabric or the carbon fiber woven fabric laid on the uppermost layer often moves or displaces, even if the displacement is not too large, but for the carbon fiber composite product with the total gram weight of hundreds, thousands or even tens of thousands of grams per square meter, the overall quality cannot meet the requirements, and even the product is scrapped.

As can be seen from the above description, in order to process a carbon fiber composite product having a gradually increasing grammage in a laminated relationship, it is necessary to reasonably improve the structure of the web peeling mechanism, and the technical solution described below is made in this context.

Disclosure of Invention

The invention aims to provide a carbon fiber composite product needling machine with an advanced net pressing function, which is beneficial to pressing cloth laid on an upper layer by a net peeling plate of a structural system of a net peeling mechanism before a needle plate is not contacted with a needled product so as to avoid the displacement of the cloth on the upper layer, ensure the product quality, and be beneficial to lifting the net peeling plate after the needle plate completes needling in one process and moves upwards so as to relieve the pressing of the cloth, thereby achieving the ideal net peeling effect and meeting the distance required by a net supporting curtain and the product travelling process on the net supporting curtain.

The invention aims to complete the task, and the carbon fiber composite product needling machine with the advanced net pressing function comprises a rack, wherein the rack consists of a rack left wallboard, a rack right wallboard and a rack lower cross beam, wherein the rack left wallboard and the rack right wallboard correspond to each other, and the rack lower cross beam is connected between the lower parts of the rack left wallboard and the rack right wallboard; the left end of the crankcase is supported on the top of the left wall plate of the frame, the right end of the crankcase is supported on the top of the right wall plate of the frame, a main shaft is rotatably arranged in the crankcase, a group of cam transmission connecting rods are arranged in the middle of the main shaft in the length direction at intervals, the lower ends of the cam transmission connecting rods are respectively connected with a guide pillar, the guide pillar is in sliding fit with a guide pillar sleeve arranged on a bottom plate of the crankcase, the lower end of the guide pillar extends to the lower part of the bottom plate of the crankcase, the upward side of the needle beam in the length direction is connected with the lower end of the guide pillar, a needle plate is fixed on the downward side of the needle beam in the length direction, and felting needles are distributed on the needle plate; the main shaft driving mechanism is arranged at the top of the crankcase and is in transmission connection with the main shaft at a position corresponding to the left end of the main shaft; the cloth peeling machine is characterized in that the net peeling mechanism comprises a net peeling plate, a left net peeling plate lifting device and a right net peeling plate lifting device, the middle of the net peeling plate corresponds to the lower part of the needle plate, the left end and the right end of the net peeling plate respectively extend out of the left end and the right end of the needle plate, the upper part of the left net peeling plate lifting device is connected with the left end of the main shaft, the lower part of the left net peeling plate lifting device corresponding to the left end of the needle plate is connected with one side, facing upwards, of the left end of the needle plate, the lower part of the right net peeling plate lifting device is connected with the right end of the main shaft, the lower part of the left net peeling plate lifting device corresponding to the right end of the needle plate, the needle bar drives the downward moving beam to penetrate into one side, the needle peeling plate penetrates into the needle plate, and the left net peeling plate lifting device drives the left net peeling plate to push the left end of the needle plate to be peeled upwards to push cloth, and the left lifting device pushes the left net plate to push the cloth to be peeled and the needle plate to push the left lifting device to push the cloth to be peeled; the net supporting plate corresponds to the lower part of the net stripping plate.

In a specific embodiment of the invention, the structure of the right lifting device of the stripping plate is the same as that of the left lifting device of the stripping plate, the left lifting device of the stripping plate comprises a left lifting guide rod of the stripping plate, a left lifting guide rod connecting cam of the stripping plate, a left lifting adjusting rod of the stripping plate and a left connecting seat of the stripping plate, the upper end of the left lifting guide rod of the stripping plate is connected with the left lifting guide rod connecting cam of the stripping plate, the middle part of the left lifting guide rod of the stripping plate is in sliding fit with the left lifting guide rod sliding guide sleeve of the stripping plate, the left lifting guide rod sliding guide sleeve of the stripping plate is fixed with the bottom plate of the crankcase, the lower end of the left lifting guide rod of the stripping plate extends to the lower part of the left lifting guide rod sliding guide sleeve of the stripping plate and is connected with the upper end of the left lifting adjusting rod of the stripping plate, the lower end of the left lifting adjusting rod of the stripping plate is connected with the left connecting seat of the stripping plate, and the left connecting seat of the stripping plate is fixed with the upward side of the left end of the stripping plate; the connecting cam for the left lifting guide rod of the mesh stripping plate comprises a left cam lobe slide guide roller pin and a pair of left cam lobes, the left cam lobes are matched with each other in a face-to-face mode and are fixed with the left end of the main shaft at the positions corresponding to a left cam lobe fixed key groove formed in the left end of the main shaft through left cam lobe fixed keys, left cam lobe eccentric slide guide grooves corresponding to each other in position are formed in one opposite sides of the left cam lobes and in the circumferential direction around the left cam lobes, the middle of the left cam lobe slide guide roller pin is inserted into the upper end of the left lifting guide rod of the mesh stripping plate, a left cam lobe slide guide roller is rotatably arranged at each of two ends of the left cam lobe slide guide roller pin, and the left cam lobe slide guide roller and the left cam lobe eccentric slide guide grooves form a rolling pair.

In another specific embodiment of the present invention, a left cam lobe spindle fixing hole is respectively formed in the central position of each of the pair of left cam lobes, a left cam lobe spindle fixing hole key slot is formed in the hole wall of the left cam lobe spindle fixing hole, the left cam lobe spindle fixing hole is sleeved at the left end of the spindle at a position corresponding to the left cam lobe fixing key slot, and a flat key fixes the pair of left cam lobes and the left end of the spindle at a position corresponding to a position between the left cam lobe spindle fixing hole key slot and the left cam lobe fixing key slot.

In another specific embodiment of the invention, the spindle driving mechanism comprises a spindle driving motor, a spindle driving reduction box, a spindle driving wheel, a spindle driving transmission belt and a spindle driving driven wheel, the spindle driving motor is in transmission fit with the spindle driving reduction box and is fixed on the upper part of the left end of the crankcase by the spindle driving reduction box together with the spindle driving motor, the main shaft driving wheel is fixed on a final power output shaft of a main shaft driving reduction box of the main shaft driving reduction box, the upper end of a main shaft driving transmission belt is sleeved on the main shaft driving wheel, the lower end of the main shaft driving transmission belt extends into a crankcase and is sleeved on a main shaft driving driven wheel, and the main shaft driving driven wheel is fixed at the left end of the main shaft.

In a further embodiment of the invention, the net supporting mechanism comprises a net supporting curtain plate, a net supporting curtain plate left lifting and sliding device and a net supporting curtain plate right lifting and sliding device, the left edge part and the right edge part of the downward sides of the front end and the rear end of the net supporting curtain plate are respectively supported on the top of the net supporting curtain plate lifting and sliding device arranged on the floor of the using place in the using state, the left side of the middle part of the net supporting curtain plate is matched with the net supporting curtain plate left lifting and sliding device, the right side of the middle part of the net supporting curtain plate is matched with the net supporting curtain plate right lifting and sliding device, the front end of the net supporting curtain is sleeved on a net supporting curtain driving roller rotatably supported on the front end of the net supporting curtain plate, the rear end of the net supporting curtain is sleeved on a net supporting curtain transition roller rotatably supported on the rear end of the net supporting curtain plate, the net supporting curtain plate is positioned in the net supporting curtain cavity of the net supporting curtain, the left side of the length direction of the net supporting curtain and the right side of the length direction of the net supporting curtain are respectively retracted into the left side of the length direction of the net supporting curtain plate and the right side of the length direction of the net supporting curtain plate to form a net supporting curtain plate supporting anti-interference abdicating space, the structure of the net supporting curtain plate right lifting sliding device is the same as that of the net supporting curtain plate left lifting sliding device, the net supporting curtain plate left lifting sliding device comprises a net supporting curtain plate guide block, a guide block up-and-down sliding guide rail and a guide rail fixing plate, the net supporting curtain plate guide block is fixed with the middle position of the left side of the middle part of the net supporting curtain plate and is in sliding fit with the upper end of the guide block up-and-down sliding guide rail, the lower end of the guide block up-and-down sliding guide rail is fixed with the guide rail fixing plate, and the guide rail fixing plate is fixed with the side of the rack left wall plate towards the rack right wall plate; a net supporting curtain driving roller driving device which is in transmission connection with the front end of the net supporting curtain driving roller or the rear end of the net supporting curtain driving roller is arranged on the left side of the front end or the right side of the front end of the net supporting curtain plate; the net supporting plate corresponding to the lower part of the net stripping plate is arranged on the net supporting curtain plate.

In a further specific embodiment of the present invention, a first net supporting plate fixing cross beam is disposed on the net supporting curtain plate and at a position corresponding to one side of the net supporting plate, and a second net supporting plate fixing cross beam is disposed at a position corresponding to the other side of the net supporting plate, one side of the net supporting plate is fixed to the first net supporting plate fixing cross beam through first net supporting plate fixing screws distributed at intervals, and the other side of the net supporting plate is fixed to the second net supporting plate fixing cross beam through second net supporting plate fixing screws distributed at intervals.

In a more specific embodiment of the invention, the upper plane of the net supporting plate is flush with the upper plane of the net supporting curtain plate; and a guide slide block groove is formed in the middle of the mesh supporting curtain plate guide slide block and at a position corresponding to the guide slide block up-down sliding guide rail, and the guide slide block groove and the guide slide block up-down sliding guide rail form a sliding pair.

In a further specific embodiment of the invention, the space between the first fixed cross beam and the second fixed cross beam of the screen supporting plate forms a needle abdicating cavity.

In a still more specific embodiment of the present invention, the first and second trawl doors are channel steels with their openings facing each other.

In yet another specific embodiment of the present invention, the net supporting curtain is a nylon net.

The technical scheme provided by the invention has the technical effects that: because the upper parts and the lower parts of the left and the right lifting devices of the mesh peeling plate of the structural system of the mesh peeling mechanism are respectively connected with the main shaft and the mesh peeling plate, the left and the right lifting devices of the mesh peeling plate can drive the mesh peeling plate to move downwards in advance and press the cloth before the needle beam drives the needle plate to move downwards and before the needle on the needle plate pierces the cloth, and the mesh peeling plate moves upwards to release the pressing of the cloth after the needle finishes the needling in one process and the needle retreats from the cloth, so that the mesh supporting curtain and the product on the mesh supporting curtain move for the required distance in the process, thereby not only having good positioning function on the needled product in the needling process, but also having ideal mesh peeling function, avoiding the displacement of un-needled carbon fiber non-woven fabric or carbon fiber woven fabric positioned at the uppermost layer, and ensuring the product quality.

Drawings

FIG. 1 is a schematic diagram of an embodiment of the present invention.

Fig. 2 is a schematic view of a pair of left cam lobes of the left lifting device of the mesh peeling plate shown in fig. 1.

Fig. 3 is a schematic view of the net supporting curtain plate left lifting sliding device of the net supporting mechanism shown in fig. 1.

Fig. 4 is a schematic view of the net supporting plate shown in fig. 1 arranged on the net supporting curtain plate.

Detailed Description

In order to clearly understand the technical spirit and the advantages of the present invention, the applicant below describes in detail by way of example, but the description of the example is not intended to limit the technical scope of the present invention, and any equivalent changes made according to the present inventive concept, which are merely in form and not in material, should be considered as the technical scope of the present invention.

In the following description, all the concepts related to the directions or orientations of up, down, left, right, front and rear are based on the position state of fig. 1 except for the specific description of fig. 4, and thus, should not be understood as a specific limitation to the technical solution provided by the present invention.

Referring to fig. 1, a rack 1 is shown, the rack 1 is composed of a rack left wall plate 11, a rack right wall plate 12 and a rack lower cross beam 13 connected between the lower parts of the rack left wall plate 11 and the rack right wall plate 12, as can be seen from the schematic diagram of fig. 1, the rack left,

right wall plates

11, 12 and the rack lower cross beam 13 make the whole rack 1 be formed into a structure of a letter \8852v; a crankcase 2 and a needle beam 3 are shown, the left end of the crankcase 2 is supported on the top of the left wall board 11 of the frame, the right end is supported on the top of the right wall board 12 of the frame, a main shaft 21 is rotatably arranged in the crankcase 2, a group of cam transmission connecting rods 22 are arranged at intervals in the middle of the length direction of the main shaft 21, the lower ends of the cam transmission connecting rods 22 are respectively connected with a guide pillar 221, the guide pillar 221 is in sliding fit with a guide pillar sleeve 2211 arranged on a bottom board 23 of the crankcase 2 of the crankcase and the lower end of the guide pillar 221 extends below the bottom board 23 of the crankcase, the upward side of the needle beam 3 in the length direction is connected with the lower end of the guide pillar 221, a needle board 31 is fixed on the downward side of the needle beam 3 in the length direction, and felting needles 311 are distributed on the needle board 31; a main shaft driving mechanism 4 is shown, the main shaft driving mechanism 4 is arranged on the top (left end top) of the crankcase 2 and is in transmission connection with the main shaft 21 at a position corresponding to the left end of the main shaft 21; a net supporting mechanism 5, a net peeling mechanism 6 and a net supporting plate 7 are shown, the net supporting mechanism 5 is positioned below the net peeling mechanism 6, the net supporting mechanism 5 is in up-and-down sliding fit with one side of the left frame wall plate 11 and the right frame wall plate 12 opposite to the position between the left frame wall plate 11 and the right frame wall plate 12, and the net supporting plate 7 is arranged on the net supporting mechanism 5 and corresponds to the position below the net peeling mechanism 6.

The invention provides the following technical points: the mesh peeling mechanism 6 comprises a mesh peeling plate 61, a left mesh peeling plate lifting device 62 and a right mesh peeling plate lifting device 63, the middle part of the mesh peeling plate 61 corresponds to the lower part of the needle plate 31, the left end and the right end of the mesh peeling plate 61 respectively extend out of the left end and the right end of the needle plate 31, the upper part of the left mesh peeling plate lifting device 62 is connected with the left end of the main shaft 21, the lower part of the left mesh peeling plate lifting device is connected with the upward side of the left end of the mesh peeling plate 61 at the position corresponding to the left end of the needle plate 31, the upper part of the right mesh peeling plate lifting device 63 is connected with the right end of the main shaft 21, the lower part of the right end of the needle plate 31 is connected with the upward side of the right end of the mesh peeling plate 61 at the position corresponding to the right end of the needle plate 31, before the needle 311 on the needle plate 31 drives the needle plate 31 to move downward and pierce the cloth, the left mesh peeling plate lifting device 62 and the right mesh peeling plate lifting device 63 drive the mesh peeling plate 61 to move downward (move downward before the needle plate 31 moves upward and the cloth, and the needle 311 after the needle 311 finishes one process of needling, the cloth is pressed and the needle plate 61 is pressed; the mesh supporting plate 7 is located below the mesh peeling plate 61.

Referring to fig. 2 and fig. 1, since the structure of the aforementioned right elevator 63 is the same as that of the aforementioned left elevator 62, the applicant only describes the right elevator 63 in detail below, the left elevator 62 includes a left elevator guide 621, a left elevator guide connecting cam 622, a left elevator adjusting rod 623, and a left elevator connecting seat 624, the upper end of the left elevator guide 621 is connected to the left elevator guide connecting cam 622, the middle part of the left elevator guide 6211 is in sliding fit with the left elevator guide 6211, the left elevator guide 6211 is fixed to the bottom plate 23 of the crankcase by guide fixing screws, the lower end of the left elevator guide 621 extends below the left elevator guide 6211 and is connected to the upper end of the left elevator adjusting rod 623, the lower end of the left elevator adjusting rod 623 is connected to the left elevator connecting seat 624, and the left elevator connecting seat 624 is fixed to the upward side of the left end of the elevator 61; the left lifting guide rod connecting cam 622 of the mesh stripping plate comprises a left cam lobe sliding guide roller pin 6221 and a pair of left cam lobes 6222, the pair of left cam lobes 6222 are mutually matched in a face-to-face mode and are fixed with the left end of the main shaft 21 at the position corresponding to the left cam lobe fixing key groove 211 arranged at the left end of the main shaft 21 through a left cam lobe fixing key, left cam lobe eccentric sliding guide grooves 62221 are respectively arranged at one opposite sides of the pair of left cam lobes 6222 and in the circumferential direction around the pair of left cam lobes 6222, the positions of the left cam lobe sliding guide grooves 62221 are mutually corresponding, the middle part of the left cam lobe sliding guide pin 6221 is inserted at the upper end of the left lifting guide rod 621 of the mesh stripping plate, a left cam lobe sliding guide roller 62211 is respectively and rotatably arranged at two ends of the left cam lobe sliding guide roller pin 6221, and the left cam lobe sliding guide roller 62211 and the left cam lobe sliding guide groove 62221 form a rolling pair. As can be seen from the schematic view of fig. 2, the overall shape of the left cam lobe eccentric guide slot 62221 is substantially D-shaped.

As shown in fig. 2, a left cam lobe main shaft fixing hole 62222 is formed at a central position of each of the pair of left cam lobes 6222, a left cam lobe main shaft fixing hole key slot 62223 is formed in a hole wall of the left cam lobe main shaft fixing hole 62222, the left cam lobe main shaft fixing hole 62222 is fitted to the left end of the main shaft 21 at a position corresponding to the left cam lobe fixing key slot 211, and the pair of left cam lobes 6222 is fixed to the left end of the main shaft 21 at a position corresponding to a space between the left cam lobe main shaft fixing hole key slot 62223 and the left cam lobe fixing key slot 211 by a flat key.

With particular reference to fig. 1, the aforementioned spindle driving mechanism 4 includes a spindle driving motor 41, a spindle driving reduction box 42, a spindle driving pulley 43, a spindle driving transmission belt 44 and a spindle driving driven pulley 45, the spindle driving motor 41 electrically connected to and controlled by an electrical controller is in transmission fit with the spindle driving reduction box 42 and is fixed by the spindle driving reduction box 42 together with the spindle driving motor 41 on the upper portion of the left end of the aforementioned crank case 2, the spindle driving pulley 43 is fixed on the final power output shaft 421 of the spindle driving reduction box 42, the upper end of the spindle driving transmission belt 44 is sleeved on the spindle driving pulley 43, the lower end thereof extends into the crank case 2 and is sleeved on the spindle driving driven pulley 45, and the spindle driving driven pulley 45 is fixed on the left end of the aforementioned spindle 21.

The main shaft driving main and driven

pulleys

43 and 45 are pulleys, and the main shaft driving belt 44 is a belt. When the spindle driving motor 41 works, it drives the spindle driving reduction box 42, the final power output shaft 421 of the spindle driving reduction box drives the spindle driving wheel 43, and the spindle driving driven wheel 45 is driven by the spindle driving transmission belt 44. Since the spindle driving driven pulley 45 is fixed to the left end of the spindle 21, the spindle driving driven pulley 45 rotates the spindle 21. As shown in fig. 1, the left and right ends of the main shaft 21 are rotatably supported by the crankcase main shaft support plate 24 of the crankcase 2 via the main shaft support bearing 212, and the needle beam 3 and the mesh peeling mechanism 61 are moved up and down by the main shaft 21 driving the cam transmission links 22 and the mesh peeling plate left and right elevating

devices

62 and 63 of the structural system of the mesh peeling mechanism 6.

Also shown in fig. 1 are a support bearing 213 for rotatably supporting the main shaft 21 and provided on the support bearing plate 2131, and a flywheel 214 provided at the right end of the main shaft 21. Therefore, the needle beam 3 and the needle plate 31 fixed with the needle beam are driven to reciprocate up and down and the stripping plate 61 is driven to reciprocate up and down in the process of the motion of the cam transmission connecting rod. The applicant needs to state that: the principle of needling of the carbon fiber composite product by the needle plate 31 of the spindle 21 with the aid of the spindle drive 4 is as well understood from the reading of the patent documents CN108085875A, CN108179552A and mentioned in the background of the invention section above, as the principle of needling of nonwoven products. The difference is that the stripping plate 61 of the stripping mechanism 6 presses the uppermost carbon fiber non-woven fabric or carbon fiber woven fabric, then descends by the needle plate 31 lagging behind the descending of the stripping plate 61, and needles the carbon fiber composite product by the needle 311, and after a process or a rhythm of needling is completed, the stripping plate 61 lags behind the ascending of the needle plate 31 to release the previous clamping (pressing) state of the cloth. However, the prior art net peeling plate 61 is static during the needling process of the needling machine, and only plays a role of net peeling, and does not have a role of net pressing (i.e., cloth pressing).

Continuing to refer to fig. 1 and fig. 3, the aforementioned net supporting mechanism 5 includes a net supporting curtain board 51, a net supporting curtain 52, a left net supporting curtain board lifting and sliding device 53 and a right net supporting curtain board lifting and sliding device 54, the left edge and the right edge of the downward sides of the front and rear ends of the net supporting curtain board 51 are respectively supported on the top of the net supporting curtain board lifting and sliding device disposed on the floor of the place of use in the use state, the left side of the middle of the net supporting curtain board 51 is matched with the left net supporting curtain board lifting and sliding device 53, the right side of the middle of the net supporting curtain board 51 is matched with the right net supporting curtain board lifting and sliding device 54, the front end of the net supporting curtain 52 is sleeved on a net supporting curtain driving roller rotatably supported on the front end of the net supporting curtain board 51, the rear end of the net supporting curtain 52 is sleeved on a net supporting curtain transition roller rotatably supported on the rear end of the net supporting curtain board 51, the net supporting curtain board 51 is located in a net supporting curtain cavity (net supporting cavity 521) of the net supporting curtain board 52, and the left side and the right side of the net supporting curtain 52 in the length direction are respectively retracted into the left side of the net supporting curtain 51 in the length direction and the right side of the net supporting curtain 51 in the length direction to form a net supporting curtain supporting anti-interference abdicating space 522, because the structure of the net supporting curtain right elevating sliding device 54 is the same as that of the net supporting curtain left elevating sliding device 53, the applicant only explains the net supporting curtain left elevating sliding device 53 in detail, the net supporting curtain left elevating sliding device 53 comprises a net supporting curtain guide block 531, a guide block up-and-down sliding guide rail 532 and a guide rail fixing plate 533, the net supporting curtain guide block 531 is fixed with the central position of the left side of the middle part of the net supporting curtain 51 by a guide block fixing screw 5312 and is in sliding fit with the upper end of the guide block up-and-down sliding guide rail 532, the lower end of the guide block up-and-down sliding guide rail 532 is fixed with a guide rail fixing plate 533 by a guide rail fixing screw 5321, and the guide rail fixing plate 533 is fixed with one side of the rack left wall plate 11 facing the rack right wall plate 12 by a guide rail fixing plate screw 5331; a net supporting curtain driving roller driving device which is used for being in transmission connection with the front end of the net supporting curtain driving roller or the rear end of the net supporting curtain driving roller is arranged on the left side of the front end of the net supporting curtain plate 51 or on the right side of the front end; the mesh supporting plate 7 corresponding to the lower part of the mesh peeling plate 61 is arranged on the mesh supporting curtain plate 51.

As is apparent from the above description, in the use state, the left edge and the right edge of the side where the front end of the net-supporting curtain plate 51 faces downward are supported and fixed on the top of a pair of net-supporting curtain plate front lifting devices which are not shown in the figure but can be completely understood, and the pair of net-supporting curtain plate front lifting devices are respectively in the structural form of lifting worm gear and worm boxes and are connected with each other by a linkage worm transmission so as to realize synchronous lifting of the front end of the net-supporting curtain plate 51; for the same reason, in the use state, the left edge portion and the right edge portion of the side of the net-supporting curtain plate 51, at which the rear end faces downward, are supported and fixed on the top of a pair of net-supporting curtain plate rear lifters, which are not shown in the drawing as well but are not confusing to understand, each of which has a structure of a lifting worm gear and worm box and are linked to each other by a linkage worm drive so as to achieve synchronous lifting of the rear end of the net-supporting curtain plate 51. Then, it can be seen that the front lifting device and the rear lifting device of the pair of net supporting curtain plates have the same structure and work synchronously, so that the net supporting curtain plates 51 descend rhythmically and integrally, that is, descend one height one by one, the height that descends one by one is the thickness of one layer (or each layer added) of carbon fiber non-woven fabric or carbon fiber woven fabric, after the needling of one carbon fiber composite product with the required thickness is completed, and after the carbon fiber composite product is separated, the next process is performed, that is, the next carbon fiber composite product is processed.

In the above process, since the net supporting plate 7 is provided on the net supporting curtain plate 51, the net supporting plate 7 also moves down or up with the lowering or raising of the net supporting curtain plate 51. The mesh supporting curtain plate supporting interference preventing space 522 is formed in the mesh supporting curtain 52, and is substantially for supporting and fixing the front and rear ends of the mesh supporting curtain plate 51 to the front and rear mesh supporting curtain plate lifting devices, or for interference of the mesh supporting curtain 52.

Then, as can be seen from the above, since the front and rear ends of the net supporting curtain 52 are respectively sleeved on the net supporting curtain driving wheel and the net supporting curtain driven wheel, and the net supporting curtain driving wheel and the net supporting curtain driven wheel are respectively and rotatably supported on the front and rear end portions of the net supporting curtain plate 51, the net supporting curtain driving wheel can be driven by the net supporting curtain driving roller driving device mentioned above and arranged on the left side of the front end of the net supporting curtain plate 51, and the net supporting curtain 52 is driven by the net supporting curtain driving roller to move rhythmically according to the process requirements under the motion of the net supporting curtain driving roller.

In the process of the net-supporting curtain plate 51 descending rhythmically, the left and right sides of the middle part of the net-supporting curtain plate 51 are guided by the left and right net-supporting curtain plate elevating and lowering

slide devices

53 and 54, respectively, and the left elevating and lowering slide device 53 is taken as an example, and the net-supporting curtain plate guide block 531 slides along the guide block up-down slide rail 532.

Referring to fig. 1, a first net supporting plate fixing cross beam 511 is disposed on the net supporting curtain plate 51 and at a position corresponding to one side (left side in the position state shown in fig. 4) of the net supporting plate 7, and a second net supporting plate fixing cross beam 512 is disposed at a position corresponding to the other side (right side in the position state shown in fig. 4) of the net supporting plate 7, wherein one side of the net supporting plate 7 is fixed to the first net supporting plate fixing cross beam 511 by first net supporting plate fixing screws 71 distributed at intervals, and the other side of the net supporting plate 7 is fixed to the second net supporting plate fixing cross beam 512 by second net supporting plate fixing screws 72 distributed at intervals.

The upper plane of the mesh supporting plate 7 is flush with the upper plane of the mesh supporting curtain plate 51.

As shown in fig. 3, a guide block groove 5311 is formed in the middle of the mesh curtain rail guide 531 at a position corresponding to the guide block vertical sliding rail 532, and the guide block groove 5311 and the guide block vertical sliding rail 532 form a sliding pair.

The space between the first fixed cross beam 511 and the second fixed cross beam 512 forms a needle abdicating chamber 513.

As shown in fig. 4, the first fixing beam 511 and the second fixing beam 512 of the screen supporting plate are channel beams having openings facing each other.

In this embodiment, the net supporting curtain 52 is a nylon net.

When the present invention is to be operated, that is, when the carbon fiber woven fabric and the carbon fiber non-woven fabric are to be needled by the needles 311 on the needle plate 31, an on-line worker places a layer of carbon fiber non-woven fabric on the side of the front end of the web supporting curtain 52 facing upward, and then laminates a layer of carbon fiber woven fabric on the upper surface of the carbon fiber non-woven fabric. Then, the web supporting curtain driving roller driving device of the structural system of the web supporting mechanism 5 operates to move the web supporting curtain 52 carrying the carbon fiber nonwoven fabric and the carbon fiber woven fabric to be needled and bonded leftward toward the needling area and into the needling area, i.e., corresponding to the lower side of the needle board 31, and at the same time, the spindle driving mechanism 4 enters the operating state, as described above by the applicant, the carbon fiber nonwoven fabric and the carbon fiber woven fabric in the mutually laminated state are needled by the needling needles 311 with the reciprocating upward and downward movement of the needle board 31 (hereinafter referred to as "carbon fiber laminated fabric" for simplicity), and each time the needle board 31 descends, i.e., each time the carbon fiber laminated fabric is needled, the web supporting curtain 52 carrying the carbon fiber laminated fabric is moved leftward by 3mm in a rhythmic operation of the stepping motor controllable in forward and backward rotation of the structural system of the web supporting curtain driving roller driving device, but not limited to 3mm absolutely, until the entire carbon fiber laminated fabric is completely laminated, the web supporting curtain 52 carrying operation is stopped and the carbon fiber laminated fabric is returned to the initial position before the needle board 31, i.e., the temporary laminated fabric is returned to the temporary laminated fabric supporting curtain driving mechanism 61. After the carbon fiber laminated cloth which is subjected to needling returns to the initial position, an online operator laminates a layer (namely, one or one sheet) of carbon fiber non-woven fabric to the upper surface of the carbon fiber woven fabric of the carbon fiber laminated cloth, after needling is completed according to the same process, the online operator returns to the initial position again, the online operator laminates a layer (namely, one or one sheet) of carbon fiber woven fabric to the upper surface of the carbon fiber non-woven fabric of the carbon fiber laminated cloth, and the process is carried out until needling is completed, and then the carbon fiber laminated cloth returns to the initial position. By analogy, the carbon fiber non-woven fabric and the carbon fiber woven fabric which are layered according to the requirement can be needled in a lamination state of every other layer, so that a carbon fiber composite product is obtained, and the total gram weight of the carbon fiber composite product can reach thousands of grams per square meter or even thousands of grams per square meter according to different purposes.

In the needling process, as the number of laminated layers of the carbon fiber laminated cloth increases, that is, as the thickness of the carbon fiber laminated cloth gradually increases, the mesh-supporting curtain plate 51 is synchronously lowered by the thickness of the carbon fiber laminated cloth which increases each time under the operation of the driving motor which is controllable in the same way as the forward and reverse rotation of the structural system of the mesh-supporting curtain plate lifting device. That is, each additional layer of carbon fiber nonwoven fabric or carbon fiber woven fabric is added, the net-supporting curtain plate 51 is lowered by the same amount (also referred to as "height") as the thickness of the added fabric, so as to gradually offset the increased height of the carbon fiber laminated fabric. After the needling of the carbon fiber composite product is finished and the carbon fiber composite product is withdrawn from the needling area, the driving motor with the same controllable forward and reverse rotation of the structural system of the net supporting curtain plate lifting device works reversely, so that the net supporting curtain plate 52 is lifted to an initial state at one time.

In the above-mentioned needling process, the web peeling plate 61 performs both the functions of pressing and peeling by the actions of the left and right web peeling plate lifting devices 62 and 63 of the structural system of the web peeling mechanism 6, and since the structure and the operation principle of the right web peeling plate lifting device 63 are the same as those of the left web peeling plate lifting device 62, the applicant only describes the left web peeling plate lifting device 62 as follows: due to the structural characteristics (described above) of the left lifting guide rod connecting cam 622 of the stripping plate, and because the left lifting guide rod connecting cam 622 of the stripping plate is matched with and fixed on the main shaft 21 by the pair of left cam flaps 6222, and because the upper end of the left lifting guide rod 621 of the stripping plate extends into between the pair of left cam flaps 6222 and is connected with the left cam flap sliding guide roller pin 6221, that is, the left cam flap sliding guide roller pin 6221 passes through the left lifting guide rod 621 of the stripping plate, and the left cam flap sliding guide roller 62211 located at both ends of the left cam flap sliding guide roller pin 6221 and the left cam flap eccentric sliding guide slot 62221 form a rolling pair, during the process that the main shaft 21 drives the needle beam 3 through the guide post 221 by the cam transmission connecting rod 22, and then the needle plate 31 is driven by the needle beam 3, the main shaft 21 drives the left lifting guide rod connecting cam 622 of the stripping plate and drives the left lifting guide rod 621 of the stripping plate, and drives the adjusting rod 623 by the left lifting guide rod 623 of the stripping plate through the left lifting guide rod 624 of the stripping plate to drive the connecting seat 61. Therefore, before the needle plate 31 is not contacted with the carbon fiber laminated cloth, the stripping plate 61 is contacted with the carbon fiber laminated cloth and presses the carbon fiber laminated cloth, and then the needle plate 31 descends to be contacted with the carbon fiber laminated cloth, so that the puncture needle 311 is punctured into the carbon fiber laminated cloth through the corresponding stripping plate needle hole on the stripping plate 61, and after one action of the needling is completed, the needle plate 31 ascends firstly, and then the stripping plate 61 ascends. In this way, the carbon fiber laminated cloth can be pressed by the mesh stripping plate 61, so that abnormal movement can not occur, and good mesh stripping effect can not be lost.

In conclusion, the technical scheme provided by the invention overcomes the defects in the prior art, successfully completes the invention task and truly realizes the technical effects of the applicant in the technical effect column.

Claims

1. A carbon fiber composite product needling machine with an advanced net pressing function comprises a frame (1), wherein the frame (1) consists of a frame left wall plate (11), a frame right wall plate (12) and a frame lower beam (13) which is connected between the lower parts of the frame left wall plate (11) and the frame right wall plate (12) which correspond to each other; the left end of the crankcase (2) is supported at the top of the rack left wall plate (11), the right end of the crankcase (2) is supported at the top of the rack right wall plate (12), a main shaft (21) is rotatably arranged in the crankcase (2), a group of cam transmission connecting rods (22) are arranged in the middle of the main shaft (21) in the length direction at intervals, the lower ends of the cam transmission connecting rods (22) are respectively connected with a guide pillar (221), the guide pillar (221) is in sliding fit with a guide pillar sleeve (2211) arranged on a crankcase bottom plate (23) of the crankcase (2), the lower end of the guide pillar (221) extends to the lower part of the crankcase bottom plate (23), one upward side of the needle beam (3) in the length direction is connected with the lower end of the guide pillar (221), a needle plate (31) is fixed on the downward side of the needle beam (3) in the length direction, and needles (311) are distributed on the needle plate (31); a main shaft driving mechanism (4), wherein the main shaft driving mechanism (4) is arranged at the top of the crankcase (2) and is in transmission connection with the main shaft (21) at a position corresponding to the left end of the main shaft (21); a net supporting mechanism (5), a net stripping mechanism (6) and a net supporting plate (7), wherein the net supporting mechanism (5) is positioned below the net stripping mechanism (6), the net supporting mechanism (5) is in sliding fit with one side of the left frame wallboard (11) and the right frame wallboard (12) opposite to the position between the left frame wallboard (11) and the right frame wallboard (12) up and down, the net supporting plate (7) is arranged on the net supporting mechanism (5) and corresponds to the lower part of the net stripping mechanism (6), and the net stripping mechanism (6) comprises a net stripping plate (61), a left net stripping plate lifting device (62) and a right net stripping plate lifting device (63), the middle part of the screen stripping plate (61) corresponds to the lower part of the needle plate (31), the left end and the right end of the screen stripping plate (61) respectively extend out of the left end and the right end of the needle plate (31), the upper part of a left screen stripping plate lifting device (62) is connected with the left end of the main shaft (21), the lower part of the left screen stripping plate lifting device is connected with one upward side of the left end of the screen stripping plate (61) at the position corresponding to the left end of the needle plate (31), the upper part of a right screen stripping plate lifting device (63) is connected with the right end of the main shaft (21), the lower part of the right screen stripping plate lifting device is connected with one upward side of the right end of the screen stripping plate (61) at the position corresponding to the right end of the needle plate (31), and a needle (311) which moves downwards on the needle plate (31) is driven by the needle beam (3) Before cloth is pierced, the left lifting device (62) and the right lifting device (63) of the mesh stripping plate drive the mesh stripping plate (61) to move downwards in advance and press the cloth, and after the needle (311) finishes one process of needling, the needle plate (31) moves upwards and the needle (311) retreats from the cloth, the mesh stripping plate (61) moves upwards to release the press on the cloth; the mesh supporting plate (7) corresponds to the lower part of the mesh stripping plate (61); the structure of the net stripping plate right lifting device (63) is the same as that of the net stripping plate left lifting device (62), the net stripping plate left lifting device (62) comprises a net stripping plate left lifting guide rod (621), a net stripping plate left lifting guide rod connecting cam (622), a net stripping plate left lifting adjusting rod (623) and a net stripping plate left connecting seat (624), the upper end of the net stripping plate left lifting guide rod (621) is connected with the net stripping plate left lifting guide rod connecting cam (622), the middle part of the net stripping plate left lifting guide rod sliding guide sleeve (6211) is in sliding fit, the net stripping plate left lifting guide rod sliding guide sleeve (6211) is fixed with the bottom plate (23) of the crankcase, the lower end of the net stripping plate left lifting guide rod (621) extends to the position below the net stripping plate left lifting guide rod sliding guide sleeve (6211) and is connected with the upper end of the net stripping plate left lifting adjusting rod (623), the lower end of the net stripping plate left lifting adjusting rod (623) is connected with the net stripping plate left connecting seat (624), and the left net stripping plate connecting seat (624) is fixed with one side, which the left end of the net stripping plate (624) faces upwards; the net stripping plate left lifting guide rod connecting cam (622) comprises a left cam lobe sliding guide roller pin (6221) and a pair of left cam lobes (6222), the left cam lobes (6222) are matched with each other in a face-to-face mode, the left cam lobe fixing key is fixedly connected with the left end of the main shaft (21) at the position corresponding to a left cam lobe fixing key groove (211) formed in the left end of the main shaft (21), a left cam lobe eccentric sliding guide groove (62221) is formed in one side, opposite to the left cam lobes (6222), of the left cam lobe sliding guide roller pin and in the circumferential direction of the left cam lobes (6222) in a surrounding mode and in a position corresponding to each other, the middle of the left cam lobe sliding guide roller pin (6221) is inserted into the upper end of the net stripping plate left lifting guide rod (621), and a left cam lobe sliding guide roller (62211) is rotatably arranged at two ends of the left cam lobe sliding guide roller pin (6221) respectively, and the left cam lobe sliding guide roller pin (62221) and the left cam lobe sliding guide roller (62221) form a rolling pair.

2. The carbon fiber composite product needle machine with the net advancing function according to claim 1, wherein a left cam lobe main shaft fixing hole (62222) is formed in each of the central positions of the pair of left cam lobes (6222), a left cam lobe main shaft fixing hole key slot (62223) is formed in the hole wall of the left cam lobe main shaft fixing hole (62222), the left cam lobe main shaft fixing hole (62222) is sleeved at the left end of the main shaft (21) at a position corresponding to the left cam lobe fixing key slot (211), and a flat key fixes the pair of left cam lobes (6222) and the left end of the main shaft (21) at a position corresponding to the space between the left cam lobe main shaft fixing hole key slot (62223) and the left cam lobe fixing key slot (211).

3. The carbon fiber composite needling machine with the function of pre-net pressing according to claim 1, wherein the spindle driving mechanism (4) comprises a spindle driving motor (41), a spindle driving reduction gearbox (42), a spindle driving wheel (43), a spindle driving transmission belt (44) and a spindle driving driven wheel (45), the spindle driving motor (41) is in transmission fit with the spindle driving reduction gearbox (42) and is fixed on the upper portion of the left end of the crankcase (2) by the spindle driving reduction gearbox (42) together with the spindle driving motor (41), the spindle driving wheel (43) is fixed on a final power output shaft (421) of the spindle driving reduction gearbox (42), the upper end of the spindle driving transmission belt (44) is sleeved on the spindle driving wheel (43), the lower end of the spindle driving transmission belt extends into the crankcase (2) and is sleeved on the spindle driving driven wheel (45), and the spindle driving driven wheel (45) is fixed on the left end of the spindle (21).

4. The carbon fiber composite needling machine with advanced net pressing function according to claim 1, wherein the net supporting mechanism (5) comprises a net supporting curtain plate (51), a net supporting curtain (52), a left net supporting curtain plate lifting sliding device (53) and a right net supporting curtain plate lifting sliding device (54), the left edge part and the right edge part of the downward side of the front end and the rear end of the net supporting curtain plate (51) are respectively supported on the top of the net supporting curtain plate lifting sliding device arranged on the floor of a use place in the use state, the left side of the middle part of the net supporting curtain plate (51) is matched with the left net supporting curtain plate lifting sliding device (53), the right side of the middle part of the net supporting curtain plate (51) is matched with the right net supporting curtain plate lifting sliding device (54), the front end of the net supporting curtain (52) is sleeved on a net supporting curtain driving roller which is rotatably supported at the front end of a net supporting curtain plate (51), the rear end of the net supporting curtain (52) is sleeved on a net supporting curtain transition roller which is rotatably supported at the rear end of the net supporting curtain plate (51), the net supporting curtain plate (51) is positioned in a net supporting curtain cavity (521) of the net supporting curtain (52), the left side and the right side of the net supporting curtain (52) in the length direction are respectively retracted into the left side of the net supporting curtain plate (51) in the length direction and the right side of the net supporting curtain plate (51) in the length direction to form a net supporting curtain plate supporting anti-interference yielding space (522), and the structure of a net supporting curtain plate right lifting sliding device (54) is the same as that of a net supporting curtain plate left lifting sliding device (53), the net supporting curtain plate left lifting sliding device (53) comprises a net supporting curtain plate guide sliding block (531), a guide sliding block up-down sliding guide rail (532) and a guide rail fixing plate (533), wherein the net supporting curtain plate guide sliding block (531) is fixed with the center position of the left side of the middle part of the net supporting curtain plate (51) and is in sliding fit with the upper end of the guide sliding block up-down sliding guide rail (532), the lower end of the guide sliding block up-down sliding guide rail (532) is fixed with the guide rail fixing plate (533), and the guide rail fixing plate (533) is fixed with one side, facing the rack right wall plate (12), of the rack left wall plate (11); a net supporting curtain driving roller driving device which is in transmission connection with the front end of the net supporting curtain driving roller or the rear end of the net supporting curtain driving roller is arranged on the left side of the front end or the right side of the front end of the net supporting curtain plate (51); the net supporting plate (7) corresponding to the lower part of the net stripping plate (61) is arranged on the net supporting curtain plate (51).

5. The carbon fiber composite product needle machine with the advanced net-pressing function according to claim 4, wherein a net supporting plate first fixing cross beam (511) is arranged on the net supporting curtain plate (51) and at a position corresponding to one side of the net supporting plate (7), a net supporting plate second fixing cross beam (512) is arranged at a position corresponding to the other side of the net supporting plate (7), one side of the net supporting plate (7) is fixed with the net supporting plate first fixing cross beam (511) through net supporting plate first fixing screws (71) distributed at intervals, and the other side of the net supporting plate (7) is fixed with the net supporting plate second fixing cross beam (512) through net supporting plate second fixing screws (72) distributed at intervals.

6. The carbon fiber composite product needle machine with advanced net pressing function according to claim 5, characterized in that the upper plane of the net supporting plate (7) is flush with the upper plane of the net supporting curtain plate (51); a guide block groove (5311) is formed in the middle of the mesh curtain supporting plate guide slide block (531) and at a position corresponding to the guide slide block up-and-down sliding guide rail (532), and the guide slide block groove (5311) and the guide slide block up-and-down sliding guide rail (532) form a sliding pair.

7. The carbon fiber composite needling machine with advanced web-pressing function according to claim 5, wherein the space between the first fixing cross beam (511) and the second fixing cross beam (512) of the web-supporting plate constitutes a needle abdicating chamber (513).

8. The carbon fiber composite product needling machine with advanced screening function according to claim 5 or 7, wherein the first and second trabecular plate fixing beams (511, 512) are channel beams with openings facing each other.

9. The carbon fiber composite needling machine with advanced net pressing function according to claim 4, wherein the net supporting curtain (52) is a nylon net.