CN216998789U

CN216998789U - Net pressing and stripping needling machine

Info

Publication number: CN216998789U
Application number: CN202220722519.0U
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: 2022-07-19
Anticipated expiration: 2032-03-29

Abstract

A net pressing and stripping needling machine comprises a frame, a machine frame and a machine frame bottom beam, wherein the machine frame consists of a left wall plate, a right wall plate and a machine frame bottom beam; the needle bar mechanism comprises a crankcase and a needle beam, wherein a main shaft is arranged in the crankcase, and a cam transmission connecting rod is arranged in the middle of the main shaft; 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 to press the cloth before the felting needles on the needle plate penetrate the cloth, the left net peeling plate lifting device and the right net peeling plate drive the net peeling plate to move downwards in advance, and the net peeling plate moves upwards to release the press of the cloth after the felting needles in one process are moved upwards along with the needle plate and leave the cloth; the screen supporting plate corresponds to the lower part of the screen stripping plate. Good positioning to the product to be needled and ideal mesh stripping effect.

Description

Net pressing and stripping needling machine

Technical Field

The utility model belongs to the technical field of non-woven machinery, and particularly relates to a net pressing and stripping needling machine.

Background

The above-mentioned net pressing can also be called cloth pressing, and similarly, the above-mentioned net peeling can also be called cloth peeling. The term "press wire" means: the needle board of the needle machine with the felting needles arranged thereon descends and is pressed by the needled product, namely the needled cloth, by descending the net stripping plate of the net stripping mechanism in advance before the needle board does not contact the needled product; the net peeling means: after the needles on the needle plate are needled, the needle plate and the needles move upwards to withdraw the needled product, and the net stripping plate of the net stripping mechanism moves upwards to release net pressing, so that net stripping, namely cloth stripping, is realized.

The aforementioned fabric mainly refers to a carbon fiber woven fabric and a carbon fiber nonwoven fabric, which are needled together by a needle machine, and the number of layers of the two fabrics may be several layers, such as several tens or even more than one hundred layers, which are mutually stacked and needled together, wherein each stacked layer is needled in one process, so as to obtain a carbon fiber composite product (also referred to as "carbon fiber cloth composite product") having a required gram weight (total gram weight), such as several hundred, thousands or even ten-thousand grams per square meter, and the carbon fiber composite product may be used for military products, such as missiles, aerospace products, heat insulating materials, new energy vehicles, solar energy, and the like, through required subsequent processing.

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

The position of the stripping plate of the structural system of the stripping mechanism on the known needle loom is adjusted and is static during the needle-punching operation of the needle loom, i.e. the stripping plate is always in a static state during the needle-punching operation of the needle loom, for which reference is made to the following patent documents, which are not limited to, for example, CN108179552A (jacquard-pile needle-punching machine), CN108085875A (jacquard-pile needle-punching machine with improved structure), CN104911823A (a two-way feed needle-punching machine), CN101492861B (automatic multi-function needle-punching machine), CN104911822A (needle-punching machine) and CN102031848A (endless paper felt needle-punching machine), etc.

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 loom mentioned above, do not need and in fact do not need to be moved up and down in accordance with the needling process during the up-and-down movement of the needle plate, 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.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a net-pressing and net-peeling needling machine 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 in contact with a product to be needled, so that the cloth on the upper layer is prevented from displacement, the product quality is guaranteed, the net-peeling plate is favorable for moving upwards after the needle plate completes needling in one process and then moving upwards to release the pressing of the cloth, the ideal net-peeling effect is achieved, and the distance required by a process of advancing a net supporting curtain and the product on the net supporting curtain is met.

The utility model aims to complete the task, and the mesh pressing and stripping needling machine comprises a frame, wherein the frame consists of a frame left wall plate, a frame right wall plate and a frame lower cross beam connected between the lower parts of the frame left wall plate and the frame right wall plate which correspond to each other, and the frame is formed into an ⊔ -shaped structure by the frame left wall plate, the frame right wall plate and the frame lower cross beam; a crankcase and a needle beam, the left end of the crankcase is supported on the top of the left wall board of the frame, the right end is supported on the top of the right wall board of the frame, a main shaft is rotatably arranged in the crankcase, the left end and the right end of the main shaft are respectively supported on a main shaft supporting plate of the crankcase in a rotating way through a main shaft supporting bearing seat, a flywheel is fixed at the rear end of the main shaft, a group of cam transmission connecting rods are arranged in the middle of the main shaft in the length direction and in a region corresponding to the length direction of the needle beam in an equidistant interval state, the lower ends of the group of 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 crankcase bottom plate of the crankcase, the lower end of the guide pillar extends to the lower side of the crankcase bottom plate, the upward side of the needle beam in the length direction is connected with the lower end of the guide pillar, and the cross section of the needle beam is in a trapezoid shape that the top is smaller than the bottom, a needle plate is fixed on the downward side of the needle beam in the length direction, and 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 net supporting mechanism is positioned below the net peeling mechanism, the net supporting mechanism is in up-and-down sliding fit with one opposite side of the left frame wall plate and the right frame wall plate at a position corresponding to the space between the left frame wall plate and the right frame wall plate, the net supporting plate is arranged on the net supporting mechanism and corresponds to the lower part of the net peeling mechanism, the net peeling mechanism is characterized by comprising a net peeling plate, a left net peeling plate lifting device and a right net peeling plate lifting device, the middle part 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 is connected with the upward side of the left end of the net peeling plate at a position corresponding to the left end of the needle 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 needle board is connected with one side of the needle board, which faces upwards, of the right end of the stripping board, the needle beam drives the needle board to move downwards and before the needles on the needle board penetrate into the cloth, the left lifting device and the right lifting device of the stripping board drive the stripping board to move downwards in advance and press the cloth, and after the needles finish the needling in one process, the stripping board moves upwards along with the needle board and after the needles retreat from the cloth, the stripping board moves upwards to release the press on the cloth; the net supporting plate corresponds to the lower part of the net stripping plate.

In a specific embodiment of the utility model, the structure of the net stripping plate right lifting device is the same as that of the net stripping plate left lifting device, 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, wherein 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 a sliding guide sleeve of the left lifting guide rod of the stripping plate, the sliding guide sleeve of the left lifting guide rod 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 sliding guide sleeve of the left lifting guide rod 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 screen stripping plate is connected with a left connecting seat of the screen stripping plate, and the left connecting seat of the screen stripping plate is fixed with the upward side of the left end of the screen 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 formed in a central position of each of the pair of left cam lobes, a left cam lobe spindle fixing hole key groove is formed in a 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 groove, 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 groove and the left cam lobe fixing key groove.

In a further specific embodiment of the present invention, the spindle driving mechanism includes 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 portion of the left end of the crankcase by the spindle driving reduction box together with the spindle driving motor, the spindle driving wheel is fixed on the final power output shaft of the spindle driving reduction box, the upper end of the spindle driving transmission belt is sleeved on the spindle driving wheel, the lower end of the spindle driving transmission belt extends into the crankcase and is sleeved on the spindle driving driven wheel, and the spindle driving driven wheel is fixed on the left end of the spindle.

In a further specific embodiment of the present invention, the net supporting mechanism includes a net supporting curtain plate, a net supporting curtain, a left net supporting curtain plate lifting and sliding device and a right net supporting curtain plate lifting and sliding device, the left edge and the right edge 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 use place in the use state, the left side of the middle part of the net supporting curtain plate is matched with the left net supporting curtain plate lifting and sliding device, the right side of the middle part of the net supporting curtain plate is matched with the right net supporting curtain plate 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 a net supporting curtain cavity of the net supporting curtain, and the left side of the length direction and the right side of the length direction of the net supporting curtain plate are respectively retracted into the net supporting curtain plate The left side of the direction and the right side of the length direction of the supporting net curtain plate form a supporting net curtain plate supporting anti-interference abdicating space, the structure of the supporting net curtain plate right lifting sliding device is the same as that of the supporting net curtain plate left lifting sliding device, the supporting net curtain plate left lifting sliding device comprises a supporting net curtain plate guide slide block, a guide slide block up-and-down sliding guide rail and a guide rail fixing plate, the supporting net curtain plate guide slide block is fixed with the central position of the middle left side of the supporting net curtain plate and is in sliding fit with the upper end of the guide slide block up-and-down sliding guide rail, the lower end of the guide slide 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 frame left wall plate towards one side of the frame 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 of the net supporting curtain plate 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 utility model, 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 utility model, 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 fixed cross beam and the second fixed cross beam of the trawl board are channel steels with openings corresponding to 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 utility model has the technical effects that: the upper parts and the lower parts of the left and 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, so that the left and 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 press 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, thereby not only having good positioning effect on the needled product in the needling process, but also having ideal mesh peeling effect, avoiding the displacement of the 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 a left lifting and sliding device of the net supporting curtain plate 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, there is shown a rack 1, 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 rack left wall plate 11 and the rack right wall plate 12, and as can be seen from the schematic view of fig. 1, the rack left,

right wall plates

11, 12 and the rack lower cross beam 13 make the whole rack 1 form a structure with a shape of ⊔; there are shown a crankcase 2 and a needle beam 3, 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 links 22 are arranged in the middle of the main shaft 21 in the length direction and in the area corresponding to the length direction of the needle beam 3 at equal intervals, the lower ends of the group of cam transmission links 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 board 23 of the crankcase 2 and the lower end of the guide pillar 221 extends below the crankcase bottom board 23, the upward side of the needle beam 3 in the length direction is connected with the lower end of the guide pillar 221, the cross section of the needle beam 3 is in a trapezoid shape with the top width smaller than the bottom width, a needle board 31 is fixed on the downward side of the needle beam 3 in the length direction, needles 311 are arranged on the needle plate 31; a main shaft driving mechanism 4 is shown, the main shaft driving mechanism 4 is arranged at 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 stripping mechanism 6 and a net supporting plate 7 are shown, wherein the net supporting mechanism 5 is positioned below the net stripping mechanism 6, the net supporting mechanism 5 is in up-and-down sliding fit with one opposite sides of the left rack wall plate 11 and the right rack wall plate 12 at a position corresponding to a position between the left rack wall plate 11 and the right rack 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 stripping mechanism 6.

The utility model 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 penetrate into 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 downwards (move downwards earlier than the needle plate 31) and press the cloth, after the needle 311 completes the needling process, the needle board 31 moves upwards and the needle 311 moves away from the cloth, the stripping board 61 moves upwards to release the pressing of the cloth; 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 right lifting device 63 is the same as that of the left lifting device 62, the applicant only describes the right lifting device 63 in detail below, the left lifting device 62 comprises a left lifting guide 621, a left lifting guide connecting cam 622, a left lifting adjusting rod 623 and a left connecting seat 624, the upper end of the left lifting guide 621 is connected with the left lifting guide connecting cam 622, the middle part is in sliding fit with the left lifting guide sliding guide sleeve 6211, the left lifting guide sliding guide sleeve 6211 is fixed with the bottom plate 23 via a guide sleeve fixing screw, the lower end of the left lifting guide 621 extends below the left lifting guide sliding guide sleeve 6211 and is connected with the upper end of the left lifting adjusting rod 623, the lower end of the left lifting adjusting rod 623 of the screen stripping plate is connected with a left connecting seat 624 of the screen stripping plate, and the left connecting seat 624 of the screen stripping plate is fixed with the upward side of the left end of the screen stripping plate 61; the stripping plate left lifting guide rod connecting cam 622 comprises a left cam flap sliding guide roller pin 6221 and a pair of left cam flaps 6222, the left cam flaps 6222 are mutually matched in a face-to-face manner and are fixed with the left end of the main shaft 21 at the position corresponding to the left cam flap fixing key groove 211 arranged at the left end of the main shaft 21 through a left cam flap fixing key, a pair of left cam lobe 6222 is provided at the opposite side thereof and around the circumferential direction of the pair of left cam lobes 6222 with a left cam lobe eccentric guide groove 62221 having a corresponding position, the middle part of the left cam lobe guide roller pin 6221 is inserted at the upper end of the stripping plate left lifting guide bar 621, a left cam lobe idler 62211 is rotatably mounted on each end of the left cam lobe idler pin 6221, the left cam lobe slide guide roller 62211 and the left cam lobe eccentric slide guide slot 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 spindle fixing hole 62222 is formed at a central position of each of the pair of left cam lobes 6222, a left cam lobe spindle fixing hole key slot 62223 is formed in a hole wall of the left cam lobe spindle fixing hole 62222, the left cam lobe spindle fixing hole 62222 is fitted to the left end of the spindle 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 spindle 21 at a position corresponding to a position between the left cam lobe spindle fixing hole key slot 62223 and the left cam lobe fixing key slot 211 by a flat key.

Please refer to fig. 1, the 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 the electrical controller is in transmission fit with the spindle driving reduction box 42 and is fixed on the upper portion of the left end of the crankcase 2 by the spindle driving reduction box 42 together with the spindle driving motor 41, 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 of the spindle driving transmission belt 44 extends into the crankcase 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 spindle 21.

The spindle driving pulley 43 and the spindle driving driven pulley 45 are pulleys, and the spindle driving transmission belt 44 is a belt. When the main shaft driving motor 41 works, the main shaft driving reduction box 42 is driven by the main shaft driving motor, the main shaft driving wheel 43 is driven by the final power output shaft 421 of the main shaft driving reduction box, and the main shaft driving driven wheel 45 is driven by the main shaft 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, left and right ends of the main shaft 21 are rotatably supported by a crankcase main shaft support plate 24 of the crankcase 2 via main shaft support bearing blocks 212, and the needle beam 3 and the mesh peeling mechanism 61 are moved up and down by driving the left and right net peeling

plate lifting devices

62 and 63 of the structural system of the cam transmission links 22 and the mesh peeling mechanism 6 by the main shaft 21.

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 explain 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 described for nonwoven products, which can also be fully understood from a reading of the patent documents cited in CN108085875A, CN108179552A and mentioned in the above background. 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 fabric. 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 with fig. 1 and 3, the aforementioned net supporting mechanism 5 includes a net supporting curtain plate 51, a net supporting curtain 52, a left net supporting curtain lifting sliding device 53 and a right net supporting curtain 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 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 51 is matched with the left net supporting curtain 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 lifting 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 plate 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 plate 51, the net supporting curtain plate 51 is positioned in a net supporting curtain cavity 521 (a net cavity) of the net supporting curtain 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, and the lower end of the guide block up-and-down sliding guide rail 532 is fixed with the guide rail fixing plate 533 by a guide rail fixing screw 5321, the guide rail fixing plate 533 is fixed to 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; similarly, in the use state, the left edge portion and the right edge portion of the side of the mesh-supporting curtain 51 where the rear end faces downward are supported and fixed on the top of a pair of mesh-supporting curtain rear lifters, which are not shown in the drawing as well but are not confusing for understanding, each of which has a worm gear and worm box type structure and are linked to each other by a interlocking worm drive so as to achieve synchronous lifting of the rear end of the mesh-supporting curtain 51. Then, it can be known 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 regularly and integrally descend, that is, descend by a height one by one, that is, the descending height 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 a required thickness is completed, and after the carbon fiber composite product is separated, the next process action 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 elevating devices of the mesh supporting curtain plate, 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 movement 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 screen curtain support guide block 531 at a position corresponding to the guide block vertical slide rail 532, and the guide block groove 5311 and the guide block vertical slide rail 532 form a slide 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 and second trabecular

plate fixing beams

511 and 512 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 is operated to make the web supporting curtain 52 carry the carbon fiber non-woven fabric laid and to be needled and the carbon fiber woven fabric move leftwards towards the needling region and enter the needling region, namely corresponding to the lower part of the needle plate 31, and at the same time, the spindle driving mechanism 4 enters the working state, and as described above by the applicant, the carbon fiber non-woven fabric and the carbon fiber woven fabric (hereinafter referred to as "carbon fiber laminated fabric" for the sake of simplicity) in the mutually laminated state are needled by the needling needles 311 with the up-and-down reciprocating motion of the needle plate 31, and each time the needle plate 31 descends, namely, each time the carbon fiber laminated fabric is needled, the web supporting curtain 52 carries the carbon fiber laminated fabric to move leftwards successively by 3mm in a rhythmic operation of the stepping motor with controllable forward and backward rotation of the structural system of the web supporting curtain driving roller driving device, however, the length is not limited to 3mm, which is only an example, until after the whole carbon fiber laminated cloth is needled, the forward and reverse rotation controllable stepping motor works in reverse direction to make the web supporting curtain 52 carrying the needled carbon fiber laminated cloth return to the front (i.e. return to) the initial position, and in the process that the web supporting curtain 52 carrying the needled carbon fiber laminated cloth returns to the front (i.e. return to the initial position), the main shaft driving mechanism 4 stops working temporarily, the needle plate 31 does not move up and down, and the web peeling plate 61 is the same as the needle plate 31, that is, the needle plate 31 and the web peeling plate 61 are both in the upper position. After the carbon fiber laminated cloth which is subjected to needling returns to the initial position, an on-line 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 on-line operator returns to the initial position again, then the on-line 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 after needling is completed according to the process, the on-line operator 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 the 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 to the extent of the thickness of the carbon fiber laminated cloth which increases each time under the operation of the driving motor which is controllable as well 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 which can be controlled by the 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 the 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: because of the structural characteristics of the left lifting guide rod connecting cam 622 of the mesh stripping plate (described above), and because the left lifting guide rod connecting cam 622 of the mesh stripping plate is matched and fixed on the main shaft 21 by the pair of left cam lobes 6222, and because the upper end of the left lifting guide rod 621 of the mesh stripping plate extends into between the pair of left cam lobes 6222 and is connected with the left cam lobe guide roller pin 6221, that is, the left cam lobe guide roller pin 6221 passes through the left lifting guide rod 621 of the mesh stripping plate, and the left cam lobe guide roller 62211 located at the two ends of the left cam lobe guide roller pin 6221 and the left cam lobe eccentric guide chute 62221 form a rolling pair, during the process that the main shaft 21 drives the needle beam 3 by the group of cam transmission connecting rods 22 through the guide post 221, and 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 mesh stripping plate and drives the left lifting guide rod 621 of the mesh stripping plate, the net stripping plate 61 is driven by the net stripping plate left lifting adjusting rod 623 through the net stripping plate left connecting seat 624. 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 is pressed, and then the needle plate 31 descends to be contacted with the carbon fiber laminated cloth, so that the puncture needle 311 pierces the carbon fiber laminated cloth through the corresponding stripping plate needle hole on the stripping plate 61, and after one action of needling is completed, the needle plate 31 ascends, 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 utility model overcomes the defects in the prior art, successfully completes the utility model task and truly realizes the technical effects of the applicant in the technical effect column.

Claims

1. A net pressing and stripping needling machine comprises a frame (1), wherein the frame (1) is composed of a frame left wall plate (11), a frame right wall plate (12) and a frame lower cross beam (13) connected between the lower parts of the frame left wall plate (11) and the frame right wall plate (12), which correspond to each other, and the frame (1) is formed into an ⊔ -shaped structure by the frame left wall plate (11), the frame right wall plate (12) and the frame lower cross beam (13); a crankcase (2) and a needle beam (3), 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), the left end and the right end of the main shaft (21) are respectively and rotatably supported on a main shaft supporting board (24) of the crankcase (2) through a main shaft supporting bearing seat (212), a flywheel (214) is fixed at the rear end of the main shaft (21), a group of cam transmission connecting rods (22) are arranged in the middle of the length direction of the main shaft (21) and in the area corresponding to the length direction of the needle beam (3) at equal intervals, the lower ends of the cam transmission connecting rods (22) are respectively connected with a guide post (221), the guide post (221) is in sliding fit with a guide post sleeve (2211) arranged on a bottom board (23) of the crankcase (2) of the crankcase and the guide post (221) extends to the bottom of the crankshaft The upward side of the length direction of the needle beam (3) is connected with the lower end of the guide post (221) below the plate (23), the cross section of the needle beam (3) is in a trapezoid shape, the width of the top part of the cross section is smaller than that of the bottom part of the cross section, a needle plate (31) is fixed on the downward side of the length direction of the needle beam (3), 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 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), 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), 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 net stripping plate (61) corresponds to the lower part of the needle plate (31), the left end and the right end of the net stripping plate (61) respectively extend out of the left end and the right end of the needle plate (31), and the upper part of the left net stripping lifting device (62) is connected with the left end of the main shaft (21), the lower part of the stripping plate is connected with one side of the stripping plate (61) with the upward left end at the position corresponding to the left end of the needle plate (31), the upper part of a right lifting device (63) of the stripping plate is connected with the right end of the spindle (21), the lower part of the right lifting device is connected with one side of the stripping plate (61) with the upward right end at the position corresponding to the right end of the needle plate (31), before the needle beam (3) drives the needle plate (31) to move downwards and the felting needles (311) on the needle plate (31) penetrate into the cloth, the left lifting device (62) of the stripping plate and the right lifting device (63) of the stripping plate drive the stripping plate (61) to move downwards in advance and press the cloth, and after the felting needles (311) complete a process of a process move upwards along with the needle plate (31) and the felting needles (311) are removed from the cloth, the stripping plate (61) moves upwards and releases the press the cloth; the mesh supporting plate (7) corresponds to the lower part of the mesh stripping plate (61).

2. The net-pressing net-peeling needling machine according to claim 1, characterized in that the structure of the net-peeling plate right lifting device (63) is the same as that of the net-peeling plate left lifting device (62), the net-peeling plate left lifting device (62) comprises a net-peeling plate left lifting guide rod (621), a net-peeling plate left lifting guide rod connecting cam (622), a net-peeling plate left lifting adjusting rod (623) and a net-peeling plate left connecting seat (624), the upper end of the net-peeling plate left lifting guide rod (621) is connected with the net-peeling plate left lifting guide rod connecting cam (622), the middle part is in sliding fit with the net-peeling plate left lifting guide rod sliding guide sleeve (6211), the net-peeling plate left lifting guide rod sliding guide sleeve (6211) is fixed with the crank case bottom plate (23), the lower end of the net-peeling plate left lifting guide rod (621) extends to the lower part of the net-peeling plate left lifting guide rod sliding guide sleeve (6211) and is connected with the upper end of the net-peeling plate left lifting adjusting rod (623), the lower end of a left lifting adjusting rod (623) of the screen stripping plate is connected with a left connecting seat (624) of the screen stripping plate, and the left connecting seat (624) of the screen stripping plate is fixed with the upward side of the left end of the screen stripping plate (61); the screen stripping plate left lifting guide rod connecting cam (622) comprises a left cam flap sliding guide roller pin (6221) and a pair of left cam flaps (6222), the left cam flaps (6222) are matched with each other in a face-to-face mode and fixed with the left end of the main shaft (21) at the position corresponding to a left cam flap fixing key groove (211) formed in the left end of the main shaft (21) through a left cam flap fixing key, left cam flap eccentric sliding guide grooves (62221) are formed in opposite sides of the left cam flaps (6222) and around the circumferential direction of the left cam flaps (6222) and correspond to each other in position, the middle of the left cam flap sliding guide roller pin (6221) is inserted in the upper end of the screen stripping plate left lifting guide rod (621), a left cam flap sliding guide roller (62211) is rotatably arranged at two ends of the left cam flap sliding guide roller pin (6221) respectively, and the left cam flap sliding guide roller (62211) and the left cam flap eccentric sliding guide grooves (62221) form a rolling pair, and rolling pair sliding rollers (62221) are formed .

3. The net-pressing net-peeling needling machine according to claim 1, characterized in that a left cam lobe main shaft fixing hole (62222) is opened at the center position of each of the pair of left cam lobes (6222), a left cam lobe main shaft fixing hole key slot (62223) is opened at 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 the position corresponding to the left cam lobe fixing key slot (211), and the pair of left cam lobes (6222) is fixed with the left end of the main shaft (21) by a flat key at the position corresponding to the position between the left cam lobe main shaft fixing hole key slot (62223) and the left cam lobe fixing key slot (211).

4. The net pressing and stripping needling machine according to claim 1, characterized in that the main shaft driving mechanism (4) comprises a main shaft driving motor (41), a main shaft driving reduction gearbox (42), a main shaft driving wheel (43), a main shaft driving transmission belt (44) and a main shaft driving driven wheel (45), the main shaft driving motor (41) is in transmission fit with the main shaft driving reduction gearbox (42) and is fixed on the upper part of the left end of the crankcase (2) by the main shaft driving reduction gearbox (42) together with the main shaft driving motor (41), the main shaft driving wheel (43) is fixed on a final power output shaft (421) of the main shaft driving reduction gearbox (42), the upper end of the main shaft driving transmission belt (44) is sleeved on the main shaft driving wheel (43), the lower end extends into the crankcase (2) and is sleeved on the main shaft driving driven wheel (45), a main shaft driving driven wheel (45) is fixed at the left end of the main shaft (21).

5. The net-pressing net-peeling needling machine according to claim 1, characterized in that the net-supporting mechanism (5) comprises a net-supporting curtain plate (51), a net-supporting curtain (52), a net-supporting curtain plate left lifting slide device (53) and a net-supporting curtain plate right lifting slide 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 slide device arranged on the floor of a use place in a use state, the left side of the middle part of the net-supporting curtain plate (51) is matched with the net-supporting curtain plate left lifting slide device (53), the right side of the middle part of the net-supporting curtain plate (51) is matched with the net-supporting curtain plate right lifting slide device (54), the front end of the net-supporting curtain (52) is sleeved on a net-supporting driving roller rotatably supported on the front end of the net-supporting curtain plate (51), and the rear end of the net-supporting curtain (52) is sleeved on a net-supporting driving roller rotatably supported on the rear end of the net-supporting curtain plate (51), the net supporting curtain board (51) is positioned in a net supporting curtain cavity (521) of the net supporting curtain (52), the left side of the net supporting curtain board (52) in the length direction and the right side of the net supporting curtain board in the length direction are respectively retracted into the left side of the net supporting curtain board (51) in the length direction and the right side of the net supporting curtain board (51) in the length direction to form a net supporting curtain board supporting anti-interference abdicating space (522), the structure of the net supporting curtain board right lifting sliding device (54) is the same as that of the net supporting curtain board left lifting sliding device (53), the net supporting curtain board left lifting sliding device (53) comprises a net supporting curtain board guide slide block (531), a guide slide block up-and-down sliding guide rail (532) and a guide rail fixing plate (533), the net supporting curtain board guide slide block (531) is fixed at the central position of the left side of the middle part of the net supporting curtain board (51) and is in sliding fit with the upper end of the guide slide block up-and down sliding fit with the guide rail (532), the lower end of a guide slide block up-and-down sliding guide rail (532) is fixed with a guide rail fixing plate (533), 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); 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 of the net supporting curtain plate (51) or the right side of the front end of the net supporting curtain plate; 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).

6. The net-pressing, net-peeling and needling machine according to claim 5, characterized in that 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), and 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.

7. The net-pressing and net-stripping needling machine according to claim 6, 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-supporting curtain 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 block groove (5311) and the guide slide block up-and-down sliding guide rail (532) form a sliding pair.

8. The net-pressing web-peeling needling machine according to claim 6, characterized in that the space between the first fixing cross beam (511) and the second fixing cross beam (512) of the web-supporting plate constitutes a needle yield chamber (513).

9. The net-pressing and net-peeling needling machine according to claim 6 or 8, characterized in that the first and second fixed beams (511, 512) of the net-supporting plate are channel steels with their openings facing each other.

10. The net-pressing, net-peeling and needling machine according to claim 5, characterized in that the net-supporting curtain (52) is a nylon net.