CN219410114U - Nonwoven fiber web compensating device matched with lapping machine - Google Patents

Abstract

A non-woven fiber web compensation device matched with a lapping machine belongs to the technical field of auxiliary equipment in a non-woven product complete production line. The front and rear chassis are connected with the chassis connecting frame at the lower part between the opposite sides of the front and rear chassis; the transmission shaft is arranged in a horizontal state corresponding to the position above the chassis connecting frame, and the transmission shaft driving mechanism is arranged in a front chassis cavity of the front chassis or a rear chassis cavity of the rear chassis and is connected with the transmission shaft; the non-woven fiber web compensation platform front actuating mechanism is arranged on one side of the front machine case facing the rear machine case, and the non-woven fiber web compensation platform rear actuating mechanism is arranged on one side of the rear machine case facing the front machine case; the nonwoven web compensation platform is positioned between the facing sides of the front and rear chassis. The advantages are that: ensuring the consistency of the advancing track of the nonwoven fiber web and the uniform and tidy effect of the two sides of the nonwoven fiber web layer; ensuring the drafting effect or feeding effect of the drafting machine or the feeding machine on the nonwoven fiber web.

Description

Nonwoven fiber web compensating device matched with lapping machine

Technical Field

The utility model belongs to the technical field of auxiliary equipment in a complete production line of nonwoven products, and particularly relates to a nonwoven fiber web compensation device matched with a lapping machine.

Background

As a complete production line of nonwoven products, there are generally known, from main equipment, a bale opener, a cotton blend weighing machine (a cotton blend weighing machine may be omitted if it is a single type of fiber), a carding machine, a lapping machine and a needling machine (a hydroentangler may also be used), nonwoven fibers which have been opened by the bale opener are supplied to the cotton blend weighing machine, then supplied to the carding machine for carding, then supplied to the lapping machine for laying up into a web layer, and then supplied to a needling machine for needling by a conveying device such as a conveying curtain or for hydroentangling by a hydroentangling machine to obtain nonwoven products.

According to the common general knowledge, and in terms of the process flow, since the lapping machine is necessarily located before the needling machine or the hydroentangling machine, the lapping machine belongs to a preceding apparatus with respect to the needling machine or the hydroentangling machine, and the process of feeding the nonwoven web laid from the lapping machine to the needling machine or the hydroentangling machine for needling or hydroentangling is generally not limited to the following cases as exemplified: firstly, a nonwoven fiber web formed by laying is sequentially drafted by a drafting machine by a bottom curtain of a lapping machine, and then is needled by a needling machine by a feeding machine; secondly, the nonwoven fiber web formed by laying is sequentially drafted by a drafting machine by a bottom curtain of a lapping machine, and then is conveyed to a hydroentanglement machine by a conveying curtain; thirdly, the non-woven fiber web formed by laying is supplied to a feeder by a bottom curtain of the lapping machine, and then is fed to a needle feeder by the feeder.

As is also known in the art, the lapping carriage of the lapping machine reciprocates side-to-side and the speed of the lapping carriage is suitably slowed down when the left and right end points are reversed (also referred to as "redirected") or returned, and correspondingly faster in the remaining areas. That is, there is a repetitive alternating process of slow to fast and then fast to slow web laying speed. In the period of time when the speed is changed from fast to slow, there is often unavoidable web redundancy, if the redundant web generated by the slow speed of the small speed of the web is not temporarily stored and the temporarily stored web is digested or released when the speed of the small speed of the web is increased, the laid fiber web will show inconsistent thickness difference between two ends (two sides) and the middle, and the quality of the nonwoven product after needling is affected.

The "lapping machine with compensation function" recommended in chinese patent CN100554539C can make the web laid by the lapping trolley take the shape of bread with thin middle thick two ends (also called "two sides"), because it can temporarily store the excessive fiber web when the lapping trolley stops or significantly decelerates at the left and right ends, and release the previously stored fiber web during the reverse movement of the lapping trolley, that is, compensate the excessive fiber web to the middle, thereby providing a guarantee for improving the consistency of the gram weight of the nonwoven product obtained by needling with the needling machine. However, since the web compensating device of this patent is directly coupled to the lapping cart, and in particular, a second web compensating device is provided on the lapping cart opposite the direction of movement of the first web compensating device and coupled to the first and second conveyor curtains and the pair of traction ropes, the overall structure of the lapping mechanism is relatively complex and the manufacturing cost is also significantly increased.

CN104755666B provides "compensating means for fluctuating transport speeds of the fibre web" as a relatively independent compensating means between the feed side and the discharge side, free from the conventional lapping carriage, thus avoiding complicating the construction of the lapping carriage with respect to CN 100554539C. However, because the compensation mode of the compensation device to the fiber web is that the fiber web is compensated at a fluctuating conveying speed and in a suspension type, the suspension type compensation generates more severe shaking to influence the stable consistency of the advancing track of the fiber web, the trimming effect and the uniform effect of the two sides of the laid fiber web layer can be influenced, and finally the quality of the needled non-woven product is difficult to ensure. The root cause of the jitter generated by the aforementioned CN104755666B is: frequent reversing of the lapping carriage causes the speed of the bottom curtain accompanying the movement of the lapping carriage to also change correspondingly frequently as speed increases and decreases (i.e. "changes in speed").

Disclosure of Invention

The object of the utility model is to provide a nonwoven fleece compensation device with a fleece layer machine, which helps to eliminate the jitter of the nonwoven fleece in the stored state, to ensure the consistency of the travel path of the nonwoven fleece and to ensure a good uniformity of the effect of the two sides of the nonwoven fleece layer laid by the fleece layer machine

The utility model aims to achieve the aim, and the nonwoven fiber web compensation device matched with the lapping machine comprises a front machine case, a rear machine case and a machine case connecting frame, wherein the front machine case and the rear machine case are correspondingly arranged in front of and behind each other, and the machine case connecting frame is fixedly connected to the lower part between the opposite sides of the front machine case and the rear machine case; the front end of the transmission shaft is rotatably supported on the front chassis, the rear end of the transmission shaft is rotatably supported on the rear chassis, and the transmission shaft driving mechanism is arranged in a front chassis cavity of the front chassis or a rear chassis cavity of the rear chassis and is in transmission connection with the transmission shaft; the non-woven fiber web compensation platform front actuating mechanism and the non-woven fiber web compensation platform rear actuating mechanism are arranged on one side of the front chassis facing the rear chassis and are in transmission connection with the front end of the transmission shaft, and the non-woven fiber web compensation platform rear actuating mechanism is arranged on one side of the rear chassis facing the front chassis and is in transmission connection with the rear end of the transmission shaft; a nonwoven web compensation platform positioned between opposite sides of the front and rear chassis, the nonwoven web compensation platform front actuation mechanism cooperating with a front right end of the nonwoven web compensation platform, and the nonwoven web compensation platform rear actuation mechanism cooperating with a rear right end of the nonwoven web compensation platform.

In a specific embodiment of the present utility model, the chassis connecting frame includes a chassis connecting frame left beam, a chassis connecting frame right beam, a front connecting beam, a rear connecting beam and an intermediate connecting beam, the front end face of the chassis connecting frame left beam is fixed with the lower part of the front chassis facing to one side of the rear chassis through a chassis connecting frame left beam front fixing base, the rear end face of the chassis connecting frame left beam is fixed with the lower part of the rear chassis facing to one side of the front chassis through a chassis connecting frame left beam rear fixing base, the front end face of the chassis connecting frame right beam is fixed with the lower part of the front chassis facing to one side of the rear chassis through a chassis connecting frame right beam front fixing base, the rear end face of the chassis connecting frame right beam is fixed with the lower part of the rear chassis facing to one side of the front chassis through a chassis connecting frame right beam rear fixing base, the front connecting beam is fixedly connected between the front end of the chassis connecting frame left beam and the front end facing to one side of the rear chassis of the front chassis, the rear connecting beam is fixedly connected between the rear end of the chassis connecting frame left beam and the rear end facing to one side of the rear chassis facing to one side of the front chassis, and the middle of the chassis connecting frame right beam is fixedly connected between the middle of the chassis connecting frame left beam and the front beam facing to one side of the front chassis; when the transmission shaft driving mechanism is arranged in the front chassis cavity, the transmission shaft driving mechanism is in transmission connection with the front end of the transmission shaft, and when the transmission shaft driving mechanism is arranged in the rear chassis cavity, the transmission shaft driving mechanism is in transmission connection with the rear end of the transmission shaft, the front end of the transmission shaft corresponds to the upper part of the middle part of the front connecting beam in the length direction, the middle part of the transmission shaft corresponds to the upper part of the middle connecting beam in the length direction, and the rear end of the transmission shaft corresponds to the upper part of the middle part of the rear connecting beam in the length direction; the non-woven fiber web compensation platform front actuating mechanism is arranged on one side of the front machine case facing the rear machine case in a state of inclining from top to bottom to left, the non-woven fiber web compensation platform rear actuating mechanism is arranged on one side of the rear machine case facing the front machine case in a state of inclining from top to bottom to left, and the distance between the non-woven fiber web compensation platform front actuating mechanism and the non-woven fiber web compensation platform rear actuating mechanism is adaptive to the width of the non-woven fiber web compensation platform.

In another specific embodiment of the present utility model, a front chassis opening and closing door for closing or opening the front chassis cavity is hinged on a side of the front chassis opposite to the rear chassis through a pair of front chassis opening and closing door hinges, and a front chassis fixing bottom plate of the front chassis is fixed with an embedded part on a terrace of a use place in a use state; a rear case opening and closing door used for closing or opening the rear case cavity is hinged on one side of the rear case opposite to the front case through a pair of rear case opening and closing door hinges, and a rear case fixing bottom plate of the rear case is fixed with an embedded part on a terrace of a use place in a use state; front case cavity ventilation grooves for enabling the front case cavity to be communicated with the outside are formed in the front case left case wall and the front case right case wall of the front case at intervals and are located in middle areas of the front case left case wall and the front case right case wall in the height direction, and rear case cavity ventilation grooves for enabling the rear case cavity to be communicated with the outside are formed in the rear case left case wall and the rear case right case wall of the rear case at intervals and are located in the middle areas of the rear case left case wall and the rear case right case wall in the height direction.

In still another specific embodiment of the present utility model, the drive shaft driving mechanism is disposed in the front chassis cavity, the drive shaft driving mechanism includes a drive shaft driving motor, a drive shaft driving reduction box and a reduction box fixing seat connecting frame, the drive shaft driving motor is a motor having a forward and reverse rotation function, the drive shaft driving motor is in driving engagement with the drive shaft driving reduction box and is supported on the front chassis fixing base plate by the drive shaft driving reduction box together with the drive shaft driving motor and is simultaneously fixed with the drive shaft driving reduction box fixing seat, the drive shaft driving reduction box final stage power output shaft of the drive shaft driving reduction box is in driving connection with the front end of the drive shaft, the reduction box fixing seat connecting frame is fixed with the front chassis right case wall of the front chassis toward one side of the front chassis cavity at a position corresponding to the upper right side of the drive shaft driving reduction box fixing seat and the reduction box fixing seat connecting frame is fixedly connected with the drive shaft driving reduction box fixing seat by a drive shaft driving reduction box fixing seat connecting screw.

In still another specific embodiment of the present utility model, a front end of the drive shaft is formed with a drive shaft front-end-head rotatably supported on a front-end-head supporting bearing housing fixed to a lower portion of a side of the front cabinet facing the rear cabinet, a front-end-head drive pulley is fixed to the drive shaft front-end-head and at a position corresponding to a rear side of the front-end-head supporting bearing housing in a flat-key manner, a drive shaft rear-end-head rotatably supported on a rear-end-head supporting bearing housing fixed to a lower portion of a side of the rear cabinet facing the front cabinet, a rear-end-head drive pulley is fixed to the drive shaft rear-end-head and at a position corresponding to a front side of the rear-end-head supporting bearing housing in a flat-key manner, and a drive shaft supporting device is rotatably supported on a drive bearing bracket device provided on the intermediate connecting beam at a middle portion in a longitudinal direction of the drive shaft; the front actuating mechanism of the non-woven fiber web compensation platform is in transmission connection with the front shaft head driving belt pulley, and the rear actuating mechanism of the non-woven fiber web compensation platform is in transmission connection with the rear shaft head driving belt pulley.

In yet another specific embodiment of the present utility model, the position of the nonwoven web compensating platform rear actuating mechanism is corresponding to the position of the nonwoven web compensating platform front actuating mechanism, the nonwoven web compensating platform front actuating mechanism includes a front drive belt tensioner, a front drive belt tensioner lifting adjustment plate, a front drive belt tensioner adjustment plate adjusting bolt, a front drive belt, a front guide rail slider, a front drive belt clamp block, a nonwoven web compensating platform front actuating roller and a front drive belt pinch roller, the front drive belt tensioner is located on the side of the front housing facing the rear housing and is rotatably disposed on the front drive belt tensioner axle head by a front drive belt tensioner bearing, the front end of the front drive belt tensioner axle head is fixed on the rear side of the front drive belt tensioner lifting adjustment plate, the front drive belt tensioner lifting adjustment plate is engaged with the left and right cavity walls of the front drive belt pulley lifting adjustment plate sliding cavity formed on the side of the front housing facing the rear housing, the front drive belt pulley tensioning block is engaged with the front drive belt adjustment block, the front end of the front drive belt tensioning block is engaged with the front drive belt lifting adjustment screw by a front drive screw nut, the front end of the front drive belt tensioning block is engaged with the front drive belt tensioning screw head by a front drive belt tensioning block adjusting screw nut, and the front end of the front drive belt tensioning block is engaged with the front drive screw nut, the upper end of the front transmission belt is sleeved on the front transmission belt tensioning wheel, the lower end of the front transmission belt is sleeved on the front shaft head transmission belt pulley, the front guide rail is fixed with the rear side of the front guide rail fixing plate, the front guide rail fixing plate is fixed on one side of the front chassis facing the rear chassis in a state of inclining from top to bottom, a front guide rail sliding block upper limiting seat is fixed on the rear side of the upper end of the front guide rail fixing plate, a front guide rail sliding block upper limiting seat limiting flange is arranged at the lower part of the front guide rail sliding block and at a position corresponding to the upper part of the front guide rail sliding block, a front guide rail sliding block lower limiting seat is fixed on the rear side of the lower end of the front guide rail fixing plate, a front guide rail sliding block lower limiting seat limiting flange is arranged at the upper part of the front guide rail sliding block and at a position corresponding to the lower part of the front guide rail sliding block, the front guide rail sliding block and the front guide rail sliding block form a sliding pair, a nonwoven web compensating platform front side clamping block is fixed on the right side of the front guide rail slide block, the nonwoven web compensating platform front side clamping block is contacted with the front side of the nonwoven web compensating platform, the front transmission belt clamping block is positioned in a front transmission belt cavity of the front transmission belt and is fixed with the front guide rail slide block under the state that the front transmission belt is clamped corresponding to the left side part of the front guide rail slide block, a nonwoven web compensating platform front actuating roller is arranged on a front actuating roller shaft through a front actuating roller bearing, the front actuating roller shaft is fixed on the lower part of the rear side of the front guide rail slide block, a front transmission belt pressing belt wheel is rotationally arranged at the rear side of the lower end of the front transmission belt pressing belt wheel frame and is contacted with the front transmission belt at the position corresponding to the left side of the front shaft head transmission belt wheel, the upper end of the front transmission belt pressing belt wheel frame is connected with a front transmission belt pressing belt wheel frame connecting block through a front transmission belt pressing belt wheel frame connecting block screw, and the front transmission belt pressing belt wheel frame connecting block is fixed with one side of the front chassis facing the rear chassis; the front actuating roller of the non-woven fiber web compensation platform is matched with the right end of the front side of the non-woven fiber web compensation platform.

In a further specific embodiment of the present utility model, the transmission shaft supporting device includes a supporting wheel frame, a first supporting wheel i, a second supporting wheel ii and a third supporting wheel iii, the supporting wheel frame is fixed to the middle part of the rear side of the middle connecting beam, the supporting wheel frame is formed with a C-shaped cavity, the first supporting wheel i is rotatably disposed at the upper left side of the C-shaped cavity of the supporting wheel frame through a first supporting wheel axle i, the second supporting wheel ii is rotatably disposed at the upper right side of the C-shaped cavity of the supporting wheel frame through a second supporting wheel axle ii, and the third supporting wheel iii is rotatably disposed at the bottom of the C-shaped cavity of the supporting wheel frame through a third supporting wheel axle iii; the front transmission belt tensioning wheel and the front shaft head transmission belt pulley are synchronous belt wheels, and the front transmission belt is a synchronous belt.

In a further specific embodiment of the present utility model, the rear actuating mechanism of the nonwoven web compensating platform comprises a rear driving belt tensioning wheel, a rear driving belt tensioning wheel lifting adjusting plate, a rear driving belt adjusting plate adjusting bolt, a rear driving belt, a rear guide rail sliding block, a rear driving belt clamping block, a rear actuating roller of the nonwoven web compensating platform and a rear driving belt pressing wheel, wherein the rear driving belt tensioning wheel is positioned corresponding to the front driving belt tensioning wheel, the rear driving belt tensioning wheel is positioned on one side of the rear chassis facing the front chassis and is rotatably arranged on a rear driving belt tensioning wheel shaft head through a rear driving belt tensioning wheel bearing, and the front end of the rear driving belt tensioning wheel shaft head is fixed on the rear side of the rear driving belt tensioning wheel lifting adjusting plate, the upper end of the rear transmission belt tensioning wheel adjusting bolt extends to the upper part of the rear nut block and forms a rear transmission belt tensioning wheel adjusting bolt operating head at the upper end, the rear connecting block of the bolt is fixed with the upper part of the rear side of the rear transmission belt tensioning wheel lifting adjusting plate through a bolt rear connecting block screw, the rear nut block is fixed with the side of the rear chassis facing the front chassis through a rear nut block fixing screw, the upper end of the rear transmission belt is sleeved on the rear transmission belt tensioning wheel, the lower end of the rear guide rail is sleeved on the rear axle head driving pulley, the rear guide rail is fixed with the front side of a rear guide rail fixing plate, the rear guide rail fixing plate is fixed on one side of the rear chassis facing the front chassis from top to bottom in a state of inclining leftwards and is positioned corresponding to the front guide rail, a rear guide rail sliding block upper limiting seat is fixed on the front side of the upper end of the rear guide rail fixing plate, a rear guide rail sliding block upper limiting seat limiting flange is arranged at the lower part of the rear guide rail sliding block upper limiting seat and at a position corresponding to the upper part of the rear guide rail sliding block, a rear guide rail sliding block lower limiting seat limiting flange is arranged at the upper part of the rear guide rail sliding block lower limiting seat and at a position corresponding to the lower part of the rear guide rail sliding block, and the rear guide rail sliding block forms a sliding pair with the rear guide rail sliding block up and down, a nonwoven web compensating platform rear side clamping block is fixed on the right side of the rear guide rail sliding block, the nonwoven web compensating platform rear side clamping block is contacted with the rear side of the nonwoven web compensating platform, the rear transmission belt clamping block is positioned in a rear transmission belt cavity of the rear transmission belt and is fixed with the rear guide rail sliding block under the state that the rear transmission belt is clamped corresponding to the left side part of the rear guide rail sliding block, the nonwoven web compensating platform rear actuating roller is arranged on a rear actuating roller shaft through a rear actuating roller bearing, the rear actuating roller shaft is fixed on the front lower part of the rear guide rail sliding block, a rear transmission belt pinch roller is rotationally arranged at the rear side of the lower end of the rear transmission belt pinch roller frame and is contacted with the rear transmission belt at the position corresponding to the left side of the rear axle head transmission belt, the upper end of the rear transmission belt pressing belt wheel frame is connected with a rear transmission belt pressing belt wheel frame connecting block through a rear transmission belt pressing belt wheel frame connecting block screw, and the rear transmission belt pressing belt wheel frame connecting block is fixed with one side of the rear chassis facing the front chassis; the rear transmission belt tensioning wheel and the rear shaft head transmission belt pulley are synchronous belt wheels, and the rear transmission belt is a synchronous belt; the distance between the front transmission belt tensioning wheel and the rear transmission belt tensioning wheel is adapted to the width of the non-woven fiber web compensation platform; the rear actuating roller of the non-woven fiber web compensation platform is matched with the right end of the rear side of the non-woven fiber web compensation platform.

In a still further specific embodiment of the utility model, the nonwoven web compensating platform comprises a web supporting compensating curtain left roll shaft, a web supporting compensating curtain right roll shaft, a web supporting compensating curtain, a roll shaft head front supporting wallboard, a roll shaft head rear supporting wallboard and a set of wallboard connecting beams, a web supporting compensating curtain left roll shaft front shaft head extends at the center of the front end face of the web supporting compensating curtain left roll shaft, the base of the web supporting compensating curtain left roll shaft front shaft head is rotatably supported at the left end of the roll shaft head front supporting wallboard through a web supporting left roll shaft head supporting bearing seat, and the tail end of the web supporting compensating curtain left roll shaft front shaft head is rotatably supported on a drawing machine or a feeding machine as a back-end device through a web supporting compensating curtain left roll shaft head tail end supporting bearing seat in the use state, the base of the left roller shaft rear shaft head of the supporting net compensating curtain is rotatably supported at the left end of the roller shaft head rear supporting wallboard through a left roller shaft rear shaft head supporting bearing seat of the supporting net compensating curtain, and in a use state, the tail end of the left roller shaft rear shaft head of the supporting net compensating curtain is rotatably supported on the drawing machine or the feeding machine serving as back equipment through a tail end supporting bearing seat of the left roller shaft rear shaft head of the supporting net compensating curtain, a front roller shaft head of the supporting net compensating curtain extends at the central position of the front end face of the right roller shaft of the supporting net compensating curtain, the front roller shaft head of the supporting net compensating curtain is rotatably supported at the right end of the roller shaft head front supporting wallboard through a front roller shaft head supporting bearing seat of the supporting net compensating curtain, a rear roller shaft head of the supporting net compensating curtain extends at the central position of the rear end face of the right roller shaft of the supporting net compensating curtain, the support net compensation curtain is rotatably supported at the right end of the roll shaft head rear support wallboard through a support net compensation curtain right roll shaft rear support bearing seat, the left end of the support net compensation curtain is sleeved on the support net compensation curtain left roll shaft, the right end of the support net compensation curtain is sleeved on the support net compensation curtain right roll shaft, the left end of the roll shaft head front support wallboard is fixedly provided with a roll shaft head front support wallboard bearing seat bracket arm, the support net compensation curtain left roll shaft head support shaft seat is fixedly arranged at the left end of the roll shaft head front support wallboard bearing bracket arm, the right end of the roll shaft head front support wallboard is provided with a support net compensation curtain right roll shaft head support shaft seat adjusting device, the support net compensation curtain right roll shaft head support bearing seat is arranged on the support net compensation curtain right roll shaft head front support shaft seat adjusting device, a front actuating roller matching seat is fixed at the lower part of the right end of the roller shaft head front supporting wallboard and at the left position of the roller shaft head front roller shaft head supporting wallboard adjusting device of the supporting net compensating curtain, the front actuating roller of the nonwoven fiber web compensating platform and the front actuating roller matching seat cavity of the front actuating roller matching seat form a rolling pair, a roller shaft head rear supporting wallboard bearing pedestal bracket arm is fixed at the left end of the roller shaft head rear supporting wallboard, a roller shaft head rear roller shaft head supporting wallboard bearing pedestal is fixed at the left end of the roller shaft head rear supporting wallboard bearing bracket arm, a roller head compensating curtain right roller shaft head supporting wallboard adjusting device is arranged at the right end of the roller shaft head rear supporting wallboard, a roller head compensating curtain right roller shaft head supporting wallboard is arranged on the roller head supporting wallboard adjusting device, a rear actuating roller matching seat is fixed at the lower part of the right end of the rear supporting wallboard of the roller shaft head and at the left position of the supporting seat adjusting device of the rear roller shaft head supporting bearing of the right roller shaft of the supporting net compensating curtain, the rear actuating roller of the non-woven fiber web compensating platform and the rear actuating roller matching seat cavity of the rear actuating roller matching seat form a rolling pair, and a group of wallboard connecting cross beams are respectively connected between the left end, the middle part and the right end of the front supporting wallboard of the roller shaft head and the rear supporting wallboard of the roller shaft head in a spacing state; the left roller shaft of the supporting net compensation curtain and the right roller shaft of the supporting net compensation curtain are synchronous belt rollers, and the supporting net compensation curtain is a leather curtain with a synchronous belt structure; the non-woven fiber web compensation platform front side clamping block is in contact with the front side of the roll shaft head front supporting wallboard, and the non-woven fiber web compensation platform rear side clamping block is in contact with the rear side of the roll shaft head rear supporting wallboard.

In still another specific embodiment of the present utility model, the structure of the supporting net compensating curtain right roller head supporting bearing seat adjusting device is the same as that of the supporting net compensating curtain right roller head supporting bearing seat adjusting device, the supporting net compensating curtain right roller head supporting bearing seat adjusting device comprises a bearing seat supporting adjusting arm, an adjusting screw traction block, an adjusting arm adjusting screw and an adjusting screw matching nut block, the right end of the bearing seat supporting adjusting arm extends out of the right end face of the roller head front supporting wallboard and forms a C-shaped bearing seat fixing head, the C-shaped bearing seat fixing head forms a bearing supporting cavity, the supporting net compensating curtain right roller head supporting bearing seat is fixed with the right end of the bearing seat supporting adjusting arm at a position corresponding to the rear side of the C-shaped bearing seat fixing head, the upper surface of the middle part of the bearing seat supporting adjusting arm and the upper guide sliding plate form a sliding pair, the lower surface of the middle part of the bearing seat supporting adjusting arm and the lower guide sliding plate form a sliding pair, the upper part and the lower part of the left end of the bearing seat supporting adjusting arm are limited by a limiting back plate, the upper guide sliding plate and the lower guide sliding plate are respectively fixed with the box cavity wall of the front supporting wall plate cavity of the front supporting wall plate of the roll shaft head, the limiting back plate is fixed with the rear cavity wall of the front supporting wall plate cavity, the adjusting screw traction block is fixed with the front side of the right end of the bearing seat supporting adjusting arm through an adjusting screw traction block screw, the left end of the adjusting screw of the adjusting arm is rotatably arranged on the adjusting screw traction block in a penetrating way, the middle part is in threaded fit with the adjusting screw matching nut block, the left end of the adjusting screw of the adjusting arm extends to the left side of the adjusting screw matching nut block and forms an operating square head or an operating hexagonal head, the adjusting screw rod matching nut block is fixed with the front side of the front supporting wallboard of the roll shaft head through the screw of the adjusting screw rod matching nut block.

The technical scheme provided by the utility model has the technical effects that: the non-woven fiber web compensation platform corresponding to the left side of the bottom curtain of the lapping machine in the use state is driven by the non-woven fiber web compensation platform front actuating mechanism and the non-woven fiber web compensation platform rear actuating mechanism, so that the shaking of the non-woven fiber web in the storage state can be eliminated, the consistency of the advancing track of the non-woven fiber web can be ensured, and the uniform and neat effect of the two sides of the non-woven fiber web layer paved by the lapping machine can be well ensured; since the utility model is arranged between the lapping machine serving as the front-way equipment and the drawing machine or the feeding machine serving as the back-way equipment in the use state, redundant nonwoven fiber webs can be temporarily stored in the lapping process of the lapping machine, and the drawing machine or the feeding machine with the feeding speed of the temporarily stored nonwoven fiber webs in a constant speed state is eliminated, so that the drawing effect or the feeding effect of the drawing machine or the feeding machine on the nonwoven fiber webs is ensured.

Drawings

Fig. 1 is a structural diagram of an embodiment of the present utility model.

Fig. 2 is a detailed structural view of the rear side view of the front chassis shown in fig. 1.

Fig. 3 is a detailed structural view of the rear chassis shown in fig. 1.

Fig. 4 is an enlarged view of a portion a in fig. 1.

Fig. 5 is a sliding fit state diagram of a bearing seat support adjusting arm and an upper guide sliding block of the supporting net compensation curtain right roller shaft front shaft head supporting bearing seat adjusting device shown in fig. 1 and 4.

Fig. 6 is a schematic diagram of an application of the present utility model.

Detailed Description

In order to make the technical spirit and advantages of the present utility model more clearly understood, the applicant will now make a detailed description by way of example, but the description of the examples is not intended to limit the scope of the utility model, and any equivalent transformation made merely in form, not essentially, according to the inventive concept should be regarded as the scope of the technical solution of the present utility model.

In the following description, all concepts related to the directions or azimuths of up, down, left, right, front and rear are in the position state shown in fig. 1, and thus, the present utility model should not be construed as being particularly limited to the technical solutions provided by the present utility model.

Referring to fig. 1, a front chassis 1, a rear chassis 2, and a chassis connecting frame 3 are shown, where the front chassis 1 and the rear chassis 2 are disposed in a back-to-back correspondence, the chassis connecting frame 3 is fixedly connected to a lower portion between opposite sides of the front chassis 1 and the rear chassis 2 as a preferred solution, and a chassis reinforcing connecting beam may be disposed (i.e. fixedly connected) at an upper portion between opposite sides of the front chassis 1 and the rear chassis 2, so as to improve reliability of the fixed connection between the front chassis 1 and the rear chassis 2; showing a drive shaft 4 and a drive shaft driving mechanism 5, the drive shaft 4 is disposed in a horizontal state corresponding to the position above the aforementioned cabinet connecting frame 3, the front end of the drive shaft 4 is rotatably supported on the aforementioned front cabinet 1, and the rear end of the drive shaft 4 is rotatably supported on the aforementioned rear cabinet 2, the drive shaft driving mechanism 5 is disposed in the front cabinet cavity 11 of the front cabinet 1 or in the rear cabinet cavity 21 of the rear cabinet 2 and is in driving connection with the aforementioned drive shaft 4; a nonwoven web compensating stage front actuating mechanism 6 and a nonwoven web compensating stage rear actuating mechanism 7 are shown, the nonwoven web compensating stage front actuating mechanism 6 being arranged on the side of the front chassis 1 facing the rear chassis 2 and being in driving connection with the front end of the drive shaft 4, the nonwoven web compensating stage rear actuating mechanism 7 being arranged on the side of the rear chassis 2 facing the front chassis 1 and being in driving connection with the rear end of the drive shaft 4; a nonwoven web compensation platform 8 is shown, the nonwoven web compensation platform 8 being located between the facing sides of the front chassis 1 and the rear chassis 2, the nonwoven web compensation platform front actuation mechanism 6 being mated with the front right end of the nonwoven web compensation platform 8, and the nonwoven web compensation platform rear actuation mechanism 7 being mated with the rear right end of the nonwoven web compensation platform 8.

The aforementioned chassis connecting frame 3 includes a chassis connecting frame left beam 31, a chassis connecting frame right beam 32, a front connecting beam 33, a rear connecting beam 34, and an intermediate connecting beam 35, the front end face of the chassis connecting frame left beam 31 is fixed to the rear lower portion of the aforementioned front chassis 1 toward the aforementioned rear chassis 2 through a chassis connecting frame left beam front fixing base 311, and the rear end face of the chassis connecting frame left beam 31 is fixed to the front lower portion of the aforementioned front chassis 2 toward the aforementioned front chassis 1 through a chassis connecting frame left beam rear fixing base 312, the front end face of the chassis connecting frame right beam 32 is fixed to the front lower portion of the aforementioned front chassis 2 through a chassis connecting frame right beam front fixing base 321, and the rear end face of the chassis connecting frame right beam 32 is fixed to the rear lower portion of the aforementioned front chassis 1 through a chassis connecting frame right beam rear fixing base 322, and the rear lower portion of the side of the rear chassis 2 toward the front chassis 1, and the front end face of the front 2 are fixed to the front lower portion of the rear chassis 2 through a chassis connecting frame right beam rear fixing base 322, and the front connecting beam 32 are fixed to the front lower portion of the front side of the front chassis 2, the front connecting beam 32 is fixed to the front end face of the front end of the chassis 2 between the front connecting beam and the front connecting beam 33 and the front end of the front chassis 2 (the front connecting beam 32 is fixed to the front end of the front connecting beam 32; when the drive shaft drive mechanism 5 is disposed in the front chassis chamber 11, the drive shaft drive mechanism 5 is drivingly connected to the front end of the drive shaft 4, and when the drive shaft drive mechanism 5 is disposed in the rear chassis chamber 21, the drive shaft drive mechanism 5 is drivingly connected to the rear end of the drive shaft 4, and the front end of the drive shaft 4 corresponds to above the middle part in the longitudinal direction of the front connecting cross member 33, the middle part of the drive shaft 4 corresponds to above the middle part in the longitudinal direction of the middle connecting cross member 35, and the rear end of the drive shaft 4 corresponds to above the middle part in the longitudinal direction of the rear connecting cross member 34; the nonwoven fabric web compensating stage front actuating mechanism 6 is provided in a state of being inclined from top to bottom to left on a side of the front chassis 1 facing the rear chassis 2, that is, on a rear side of the front chassis 1, the nonwoven fabric web compensating stage rear actuating mechanism 7 is provided in a state of being inclined from top to bottom to left on a side of the rear chassis 2 facing the front chassis 1 (that is, on a front side of the rear chassis 2), and a distance between the nonwoven fabric web compensating stage front actuating mechanism 6 and the nonwoven fabric web compensating stage rear actuating mechanism 7 is adapted to a width of the nonwoven fabric web compensating stage 8.

With continued reference to fig. 1, a front cabinet opening/closing door 12 for closing or opening the front cabinet cavity 11 is hinged to a side of the front cabinet 1 facing away from the rear cabinet 2, that is, to a front side of the front cabinet 1 through a pair of front cabinet opening/closing door hinges 121, and a front cabinet fixing bottom plate 13 of the front cabinet 1 is fixed to an embedded part on a floor of a use place in a use state; a rear case opening and closing door 22 for closing or opening the rear case cavity 21 is hinged on one side of the rear case 2 facing away from the front case 1, namely, on the rear side of the rear case 2 through a pair of rear case opening and closing door hinges 221, and a rear case fixing bottom plate 23 of the rear case 2 is fixed with an embedded part on a terrace of a use place in a use state; front cabinet ventilation grooves 14 for communicating the front cabinet 11 with the outside are provided on the front cabinet left and right walls of the front cabinet 1 at intervals in the middle areas in the height direction of the front cabinet left and right walls, and rear cabinet ventilation grooves 24 for communicating the rear cabinet 21 with the outside are provided on the rear cabinet left and right walls of the rear cabinet 2 at intervals in the middle areas in the height direction of the rear cabinet left and right walls.

In fig. 1, a front chassis fixing base plate bolt hole 131 for fixing the front chassis fixing base plate 13 to an embedded part on a floor of a use place is formed on the front chassis fixing base plate 13, and a front chassis line introduction hole 16 is formed on the right side of the front chassis 1. In the same way, a rear chassis fixing base plate bolt hole 231 for embedding a rear chassis fixing base plate 23 with a floor of a use place is formed in the rear chassis fixing base plate 23, and a rear chassis line introduction hole 26 is formed in the right side of the rear chassis 2.

In the present embodiment, the aforementioned drive shaft driving mechanism 5 is provided in the aforementioned front chassis cavity 11, but if the drive shaft driving mechanism 5 is provided in the aforementioned rear chassis cavity 21, it should be regarded as an equivalent technical means and still fall within the technical meaning of the present disclosure, the drive shaft driving mechanism 5 includes a drive shaft driving motor 51, a drive shaft driving reduction box 52 and a reduction box fixing seat connecting frame 53, the drive shaft driving motor 51 is a motor having a forward and reverse rotation function, the drive shaft driving motor 51 is in driving engagement with the drive shaft driving reduction box 52 and supported on the aforementioned front chassis fixing base 13 by the drive shaft driving reduction box 52 together with the drive shaft driving motor 51 and is simultaneously fixed with the drive shaft driving reduction box fixing seat 521, the drive shaft driving reduction box final power output shaft of the drive shaft driving reduction box 52 is in driving connection with the front end of the aforementioned drive shaft 4, the reduction box fixing seat connecting frame 53 is fixed with the front chassis right chassis box wall of the aforementioned front chassis 1 toward one side of the aforementioned front chassis cavity 11 at a position corresponding to the upper right side of the drive shaft driving reduction box fixing seat 521 and the reduction box fixing seat connecting frame 53 is fixed with the drive shaft driving reduction box screw 531 by the drive shaft driving reduction box fixing seat screw 531 and is fixed with the drive shaft fixing seat screw 521 at the locking end of the drive shaft fixing seat 521. Also shown is a spacer 5311 which is placed over the middle of the drive shaft drive reduction mount connection screw 531 and between the drive shaft drive reduction mount 521 and the reduction mount connection frame 53.

Referring to fig. 2 and in combination with fig. 1 and 3, the front end of the aforementioned drive shaft 4 is formed with a drive shaft front axle head 41 (fig. 2), the drive shaft front axle head 41 is rotatably supported on a front axle head supporting bearing block 411, and the front axle head supporting bearing block 411 is fixed with the lower portion of the aforementioned front cabinet 1 toward one side of the aforementioned rear cabinet 2, a front axle head driving pulley 412 is fixed on the drive shaft front axle head 41 and at a position corresponding to the rear side of the front axle head supporting bearing block 411 in a flat key fixing manner, a drive shaft rear axle head 42 is formed at the rear end of the drive shaft 4, the drive shaft rear axle head 42 is rotatably supported on a rear axle head supporting bearing block 421, and the rear axle head supporting block 421 is fixed with the lower portion of the aforementioned rear cabinet 2 toward one side of the aforementioned front cabinet 1, a rear drive pulley 422 is fixed on the drive shaft rear axle head 42 and at a position corresponding to the front side of the rear axle head supporting bearing block 421 in a flat key fixing manner, a drive shaft supporting device 43 is rotatably supported on a drive shaft supporting device 43 provided on the aforementioned intermediate connection beam 35 in the length direction, and thus the design of the drive shaft 4 is prevented from generating deflection due to the long structure; the front actuating mechanism 6 of the non-woven fiber web compensation platform is in transmission connection with the front axle head driving pulley 412, and the rear actuating mechanism 7 of the non-woven fiber web compensation platform is in transmission connection with the rear axle head driving pulley 422. The final power output shaft of the drive shaft drive reduction box 52 is in drive connection with the front shaft head 41.

With particular reference to fig. 2, the position of the aforementioned nonwoven web compensating platform rear actuating mechanism 7 corresponds to the position of the aforementioned nonwoven web compensating platform front actuating mechanism 6, the nonwoven web compensating platform front actuating mechanism 6 includes a front belt tensioner 61, a front belt tensioner lifting adjustment plate 62, a front belt tensioner adjustment screw 63, a front belt 64, a front rail 65, a front rail slider 66, a front belt clamp 67, a nonwoven web compensating platform front actuating roller 68 and a front belt pinch roller 69, the front belt tensioner 61 is located on the side of the aforementioned front housing 1 facing the aforementioned rear housing 2 and rotatably disposed on a front belt tensioner head 612 (also referred to as "flat shaft") through a front belt tensioner bearing 611, the front end of the front belt tensioner head 612 is fixed on the rear side of the front belt tensioner lifting adjustment plate 62, the front belt tensioner lifting adjustment plate 62 cooperates with a front belt adjustment screw cap 63 provided on the side of the front housing 1 facing the rear housing 2, a front belt pulley adjustment screw nut 632 is engaged with a front end of a front belt pulley adjustment screw nut 632 provided on the front end of the front pulley adjustment plate lifting adjustment plate 63, and a front end of the front belt pulley adjustment screw nut 632 is engaged with the front end of the front belt adjustment screw nut 632 of the front belt pulley adjustment plate 3 provided on the front housing 1 facing the side of the rear housing 2, the front bolt coupling block 631 is fixed to the rear upper portion of the front belt tensioner lift adjustment plate 62 by a front bolt coupling block screw 6311, the front nut block 632 is fixed to the front cabinet 1 on the side facing the rear cabinet 2 by a front nut block fixing screw 6321, the upper end of the front belt 64 is fitted over the front belt tensioner 61, the lower end is fitted over the front head pulley 412, the front rail 65 is fixed to the rear side of the front rail fixing plate 651, the front rail fixing plate 651 is fixed to the front cabinet 1 on the side facing the rear cabinet 2 in a state of being inclined from top to bottom to left, a front rail slider upper limit seat 6511 is fixed to the rear side of the upper end of the front rail fixing plate 651, a front rail slider upper limit seat limit flange 65111 is provided on the front rail slider upper limit seat 6511 at a position corresponding to the upper side of the front rail slider 66, a front rail slider lower limiting seat 6512 is fixed to the rear side of the lower end of the front rail fixing plate 651, a front rail slider lower limiting seat limiting flange 65121 is provided at the upper portion of the front rail slider lower limiting seat 6512 and at a position corresponding to the lower portion of the front rail slider 66, the front rail slider 66 forms a sliding pair with the front rail 65 in a sliding manner up and down, a nonwoven web compensation stage front side clamping block 661 is fixed to the right side of the front rail slider 66, the nonwoven web compensation stage front side clamping block 661 is brought into contact with the front side of the nonwoven web compensation stage 8, the front belt clamping block 67 is positioned in the front belt cavity 641 of the front belt 64 and is fixed to the front rail slider 66 in a state of clamping the front belt 64 corresponding to the left side portion of the front rail slider 66, the nonwoven web compensating platform front actuating roller 68 is provided on a front actuating roller shaft 6811 through a front actuating roller bearing 681, the front actuating roller shaft 6811 is fixed at the rear lower portion of the front rail slider 66, the front belt pinch roller 69 is rotatably provided at the rear side of the lower end of the front belt pinch roller frame 691 and is in contact with the front belt 64 at a position corresponding to the left side of the front axle head drive pulley 412, the upper end of the front belt pinch roller frame 691 is connected with a front belt pinch roller frame connecting block 692 through a front belt pinch roller frame connecting block screw 6921, and the front belt pinch roller frame connecting block 692 is fixed with the front chassis 1 toward the side of the rear chassis 2; the nonwoven web compensation platform front actuation roller 68 cooperates with the front right end of the nonwoven web compensation platform 8.

With continued reference to fig. 1 and 2, the driving bearing bracket device 43 includes a supporting wheel frame 431, a first supporting wheel i 432, a second supporting wheel ii 433 and a third supporting wheel iii 434, wherein the supporting wheel frame 431 is fixed to a rear middle portion of the intermediate connecting beam 35, the supporting wheel frame 431 is formed with a C-shaped cavity 4311, the first supporting wheel i 432 is rotatably disposed at an upper left portion of the C-shaped cavity 4311 of the supporting wheel frame 431 through a first supporting wheel axle i 4321, the second supporting wheel ii 433 is rotatably disposed at an upper right portion of the C-shaped cavity 4311 of the supporting wheel frame 431 through a second supporting wheel axle ii 4331, and the third supporting wheel iii 434 is rotatably disposed at a bottom portion of the C-shaped cavity 4311 of the supporting wheel frame 431 through a third supporting wheel axle iii 4341; in the present embodiment, the front belt tensioner 61 and the front axle head pulley 412 are timing pulleys, and the front belt 64 is a timing belt.

When the servo motor with the forward and reverse rotation functions, that is, the aforementioned drive shaft driving motor 51 works, the drive shaft driving reduction gearbox 52 is driven by the drive shaft driving motor 51, and the last power output shaft of the drive shaft driving reduction gearbox 52 drives the front shaft head 41 of the drive shaft 4, so that the drive shaft 4 drives the front shaft head driving pulley 412 and the rear shaft head driving pulley 422 simultaneously, taking the nonwoven web compensating platform front actuating mechanism 6 shown in fig. 2 as an example, under the drive of the front shaft head driving pulley 412 by the drive shaft front shaft head 41 of the drive shaft 4, the front guide rail slide block 66 is driven by the front shaft head driving pulley 412 by the front driving belt 64 sleeved on the front driving belt tensioning wheel 61 through the upper end to slide downwards along the front guide rail 65 until the lower end surface of the front guide rail slide block 66 is blocked by the lower limiting seat limiting flange 65121 of the front guide rail slide block, so that the front guide rail slide block 66 can not and can not continue to slide downwards. In this case, the right end of the nonwoven fabric web compensating platform 8, which will be described in detail later, is driven downward by the nonwoven fabric web compensating platform front actuating roller 68 during the downward movement of the front rail slider 66 by the operation of the drive shaft driving motor 51. The drive shaft drive motor 51 is then operated in reverse, and the front rail slider 66 is moved upward in a reverse manner to that described by the applicant's description until its upper end surface is blocked by the front rail slider upper limit seat limit flange 65111. During the upward movement of the front rail slider 66, the right end of the nonwoven fleece compensating platform 8, which will be described in more detail below, is returned, i.e., previously in a declined state, to a state of (returning to) a state of being horizontal, as shown in fig. 6, by the nonwoven fleece compensating platform front actuating roller 68. One process of forward and reverse rotation of the drive shaft drive motor 51 is adapted to the time required for one reciprocating lapping action of the lapping machine 10 as a preceding process and shown in fig. 6, and the time is controlled by an electrical control box according to the process requirements, that is, the forward and reverse rotation of the drive shaft drive motor 51 is controlled by the electrical control box, and the lapping machine 10 is controlled by the same instance, that is, the electrical control box. The following description of the structure of the nonwoven web compensation post-stage actuator 7 will not be repeated after the description of the structure of the nonwoven web compensation post-stage actuator 7, since the nonwoven web compensation post-stage actuator 7 is operated in synchronization with the nonwoven web compensation post-stage actuator 6 described above, according to the common general knowledge.

The applicant needs to say that: the front rail slider 66 described above normally does not strike the front rail slider upper limit seat defining flange 65111 and the front rail slider lower limit seat defining flange 65121 because the drive shaft drive motor 51 is a servo motor that is typically capable of meeting the stroke control requirements. However, in order to prevent this, the front rail slider upper limit seat limit flange 65111 and the front rail slider lower limit seat limit flange 65121 are employed.

Referring to fig. 3 in combination with fig. 1, the aforementioned nonwoven web compensating platform rear actuating mechanism 7 includes a rear drive belt tension pulley 71, a rear drive belt tension pulley lift adjustment plate 72, a rear drive belt tension pulley adjustment bolt 73, a rear drive belt 74, a rear guide rail 75, a rear guide rail slider 76, a rear drive belt clamp block 77, a nonwoven web compensating platform rear actuating roller 78 and a rear drive belt pinch pulley 79, the position of the rear drive belt tension pulley 71 corresponds to the aforementioned front drive belt tension pulley 61, the rear drive belt tension pulley 71 is located on the side of the aforementioned rear housing 2 facing the aforementioned front housing 1 and is rotatably disposed on the rear drive belt tension pulley head 712 (also referred to as "half-shaft") by a rear drive belt tension pulley bearing 711, the front end of the rear drive belt tension pulley 712 is fixed on the rear side of the rear drive belt pulley lift adjustment plate 72, the rear drive belt tension pulley lift adjustment plate 72 cooperates with the rear drive belt tension pulley adjustment plate upper and lower end 731 of the rear drive belt tension pulley adjustment plate 731 on the side of the rear housing 2 facing the aforementioned front housing 1 and is operatively connected to the rear drive belt tension screw cap 73 by a rear drive belt tension screw bolt connecting the rear drive screw-down block 731, which is operatively connected to the rear drive belt tension pulley adjustment plate upper end of the rear drive pulley adjustment plate 73 at the rear end of the rear drive belt tension pulley mount plate 73 at the end of the rear housing 11, the rear nut block 732 is fixed to the rear cabinet 2 on the side facing the front cabinet 1 by means of rear nut block fixing screws 7321, the upper end of the rear belt 74 is fitted over the rear belt tensioner 71, the lower end is fitted over the rear head pulley 422, the rear rail 75 is fixed to the front side of the rear rail fixing plate 751 which is fixed to the side of the front cabinet 2 facing the front cabinet 1 in a state of being inclined from top to bottom to left and which corresponds to the front rail 65, a rear rail slider upper limit seat 751 is fixed to the front side of the upper end of the rear rail fixing plate 751, a rear rail slider upper limit seat 75111 is provided to the lower end of the rear rail slider upper limit seat 751 and at a position corresponding to the upper side of the rear rail slider 76, a rear rail slider lower limit seat 751 is fixed to the front side of the lower end of the rear rail fixing plate 751, a rear rail slider lower limiting seat limiting flange 75121 is provided at an upper portion of the rear rail slider lower limiting seat 7512 at a position corresponding to a lower portion of the rear rail slider 76, the rear rail slider 76 forms a sliding pair with the rear rail 75 in a vertically sliding manner, a nonwoven web compensating platform rear side clamping block 761 is fixed at a right side of the rear rail slider 76, the nonwoven web compensating platform rear side clamping block 761 is in contact with a rear side of the nonwoven web compensating platform 8, the rear belt clamping block 77 is located in a rear belt cavity 741 of the rear belt 74 and is fixed with the rear rail slider 76 in a state of clamping the rear belt 74 corresponding to a left side portion of the rear rail slider 76, the nonwoven web compensating platform rear actuating roller 78 is provided on the rear actuating roller shaft 7811 through the rear actuating roller bearing 781, the rear actuating roller shaft 7811 is fixed to a lower portion of a front side of the rear rail slider 76, the rear belt pinch roller 79 is rotatably provided at a rear side of a lower end of the rear belt pinch roller frame 791 and is in contact with the rear belt 74 at a position corresponding to a left side of the rear head drive pulley 422, an upper end of the rear belt pinch roller frame 791 is connected to the rear belt pinch roller frame connection block 792 through a rear belt pinch roller frame connection block screw 7921, and the rear belt pinch roller frame connection block 792 is fixed to a side of the front cabinet 1 toward the front cabinet 2; the rear belt tensioner 71 and the rear head drive pulley 422 are timing pulleys, and the rear belt 74 is a timing belt; the distance between the front belt tensioner 61 and the rear belt tensioner 71 is adapted to the width of the nonwoven web compensation platform 8; the aforementioned nonwoven web compensation platform rear actuation roller 78 cooperates with the rear right end of the nonwoven web compensation platform 8.

With continued reference to fig. 1 and in combination with fig. 6, the aforementioned nonwoven web compensating platform 8 comprises a web-supporting compensating curtain left roll shaft 81, a web-supporting compensating curtain right roll shaft 82, a web-supporting compensating curtain 83, a roll shaft head front support wallboard 84, a roll shaft head rear support wallboard 85 and a set of wallboard connecting beams 86, a web-supporting compensating curtain left roll shaft front axle head 811 extending at a central position of the front end face of the web-supporting compensating curtain left roll shaft 81, the base of the web-supporting compensating curtain left roll shaft front axle head 811 being rotatably supported at the left end of the roll shaft head front support wallboard 84 by web-supporting compensating curtain left roll shaft front axle head support bearing blocks 8111, and the end of the web-supporting compensating curtain left roll shaft front axle head 811 in use state, i.e. the front end shown in fig. 1 being rotatably supported on a drawing machine or a feeding machine as the back-end apparatus 9 by web-supporting compensating curtain left roll shaft front axle head end support bearing blocks, a back-web compensating-curtain left roll shaft rear-shaft head 812 extends at a central position of a rear end face of the back-web compensating-curtain left roll shaft 81, a base of the back-web compensating-curtain left roll shaft rear-shaft head 812 is rotatably supported at a left end of the roll shaft head rear-supporting wall plate 85 through a back-web compensating-curtain left roll shaft rear-shaft head supporting bearing housing 8121, and in a use state, a tip of the back-web compensating-curtain left roll shaft rear-shaft head 812 is rotatably supported on the aforementioned drawing machine or feeding machine as the rear-end apparatus 9 through a back-web compensating-shaft head tip supporting bearing housing 8211, a back-web compensating-curtain right roll shaft front-shaft head 821 extends at a central position of a front end face of the back-web compensating-curtain right roll shaft 82, the back-web compensating-curtain right roll shaft front-shaft head 821 is rotatably supported at a right end of the roll shaft head front-supporting wall plate 84 through a back-web compensating-right roll shaft front-shaft head supporting bearing housing 8211, a support net compensating curtain right roll shaft rear axle head 822 (shown in fig. 6) is extended at the center of the rear end face of the support net compensating curtain right roll shaft 82, the support net compensating curtain is rotatably supported at the right end of the roll shaft head rear supporting wallboard 85 by a support net compensating curtain right roll shaft rear axle head supporting axle seat 8221 (shown in fig. 6) at the right roll shaft rear axle head 822, the left end of the support net compensating curtain 83 is sleeved on the support net compensating curtain left roll shaft 81, the right end of the support net compensating curtain 83 is sleeved on the support net compensating curtain right roll shaft 82, a roll shaft head front supporting wallboard bearing seat supporting arm 841 is fixed at the left end of the roll shaft head front supporting wallboard 84, the aforementioned support net compensating curtain left roll shaft head supporting axle seat 8111 is fixed at the left end of the roll shaft head front supporting wallboard bearing housing supporting arm 841, a support net compensating curtain right roll shaft head front supporting axle seat adjusting device 842 is provided at the right end of the roll head front supporting wallboard 84, the front roller head support pedestal 8211 is disposed on the front roller head support pedestal adjusting device 842, a front actuating roller fitting pedestal 843 is fixed at the lower part of the right end of the front roller head support wallboard 84 and at the left side of the front roller head support pedestal adjusting device 842, the front actuating roller 68 of the non-woven fiber web compensating platform and the front actuating roller fitting pedestal cavity 8431 of the front actuating roller fitting pedestal 843 form a rolling pair, a rear roller head support wallboard bearing pedestal bracket 851 is fixed at the left end of the rear roller head support wallboard 85, the rear roller head support pedestal 8121 of the front roller head support curtain is fixed at the left end of the rear roller head support wallboard bearing pedestal bracket 851, a supporting net compensating curtain right roll shaft rear shaft head supporting bearing seat adjusting device 852 is arranged at the right end of the roll shaft head rear supporting wallboard 85, the supporting net compensating curtain right roll shaft rear shaft head supporting bearing seat 8221 is arranged on the supporting net compensating curtain right roll shaft head supporting bearing seat adjusting device 852, a rear actuating roller matching seat 853 is fixed at the lower part of the right end of the roll shaft head rear supporting wallboard 85 and at the left position of the supporting net compensating curtain right roll shaft head supporting bearing seat adjusting device 852, the non-woven fiber web compensating platform rear actuating roller 78 and a rear actuating roller matching seat cavity 8531 of the rear actuating roller matching seat 853 form a rolling pair, and a group of wallboard connecting beams 86 are respectively connected between the roll shaft head front supporting wallboard 84 and the left end, the middle part and the right end of the roll shaft head rear supporting wallboard 85 in a spacing state; in this embodiment, the left roller shaft 81 and the right roller shaft 82 of the supporting net compensating curtain are synchronous belt rollers, and the supporting net compensating curtain 83 is a leather curtain in a synchronous belt structure; the nonwoven fabric web compensating stage front side holding block 661 is in contact with the front side of the roll shaft head front support wall plate 84, and the nonwoven fabric web compensating stage rear side holding block 761 is in contact with the rear side of the roll shaft head rear support wall plate 85.

Referring to fig. 4 and 5 in combination with fig. 1 and 6, the aforementioned structure of the supporting net compensating curtain right roller post head supporting bearing seat adjusting device 852 is the same as the aforementioned structure of the supporting net compensating curtain right roller front head supporting bearing seat adjusting device 842, so that the applicant only describes in detail below the supporting net compensating curtain right roller front head supporting seat adjusting device 842, the supporting net compensating curtain right roller front head supporting seat adjusting device 842 includes a bearing seat supporting adjusting arm 8421, an adjusting screw traction block 8422, an adjusting arm adjusting screw 8423 and an adjusting screw fitting nut block 8424, the right end of the bearing seat supporting adjusting arm 8421 extends out of the right end face of the aforementioned roller head front supporting wall plate 84 and is formed with a C-shaped bearing seat fixing head 84211, the C-shaped bearing seat fixing head 84211 is formed with a bearing supporting cavity 84212, the aforementioned support net compensation curtain right roller shaft front axle head support bearing seat 8211 is fixed with the right end of the bearing seat support adjusting arm 8421 at a position corresponding to the rear side of the C-shaped bearing seat fixing head 84211, the middle upper surface of the bearing seat support adjusting arm 8421 forms a sliding pair with the upper guide slide plate 84213, and the middle lower surface of the bearing seat support adjusting arm 8421 forms a sliding pair with the lower guide slide plate 84214, the left end upper portion and the lower portion of the bearing seat support adjusting arm 8421 are limited by the limit back plate 84215, the upper guide slide plate 84213 and the lower guide slide plate 84214 are each fixed with the box cavity wall of the front support wallboard cavity 844 of the roller shaft front support wallboard 84, the limit back plate 84215 is fixed with the rear cavity wall of the front support wallboard cavity 844, the adjusting screw traction block 8422 is fixed with the right end front side of the bearing seat support adjusting arm 8421 through the adjusting screw traction block screw 84221, the left end of the adjusting arm adjusting screw 8423 is rotatably arranged on the adjusting screw traction block 8422, the middle portion is threadedly engaged with the adjustment screw engagement nut block 8424, and the left end of the adjustment arm adjustment screw 8423 extends to the left side of the adjustment screw engagement nut block 8424 and is formed with an operating square or hexagonal head 84231, the adjustment screw engagement nut block 8424 being secured to the front side of the front roll head support wall plate 84 by an adjustment screw engagement nut block screw 84241.

When the right roller 82 of the net supporting compensation curtain is to be adjusted to the left, the locking nut 8423 positioned on the left side of the adjusting screw traction block 8422 and screwed on the adjusting arm adjusting screw 8423 is firstly loosened, the operator operates the operating square head or the operating hexagonal head 84231 by using a wrench or a similar tool to rotate the adjusting arm adjusting screw 8423, the operator dials the bearing seat supporting adjusting arm 8421 to the right by means of the adjusting screw traction block 8422, the locking nut 8423 is screwed after the bearing seat supporting adjusting arm 8421 shifts the right roller 82 of the net supporting compensation curtain to the right, and the net supporting compensation curtain 83 is tensioned, and the same is true. According to the common general knowledge, when the adjusting device 842 for the front axle head supporting bearing seat of the right roller shaft of the supporting net compensating curtain is adjusted, the adjusting device 852 for the rear axle head supporting bearing seat of the right roller shaft of the supporting net compensating curtain needs to be adjusted at the same time.

Referring to fig. 6 in conjunction with fig. 1-3, the above-mentioned sheeter 10 is shown in fig. 6 as the front device, and the sheeter bottom curtain 101 of the sheeter 10 is also shown, as well as the sheeter bottom curtain drive shaft 102 (which may also be referred to as a "sheeter bottom curtain drive roller"); fig. 6 also shows a drawing machine as the downstream device 9, but the downstream device 9 may also be a feeder, so that the practical application of the present utility model cannot be limited by the configuration of the drawing machine or the feeder. During the lapping process of the lapping machine 10, the back-end device 9 is always in a normal drafting or cotton feeding state, however, redundant nonwoven fiber webs generated by the lapping speed difference of the lapping machine 10 are temporarily stored in the area of the temporary cotton storage space 20 (also referred to as temporary storage space) between the lapping machine bottom curtain 101 and the net supporting compensation curtain 83, at this time, under the operation of the driving shaft driving mechanism 5 driving the nonwoven fiber web compensation platform front actuating mechanism 6 and the nonwoven fiber web compensation platform rear actuating mechanism 7, the right end of the nonwoven fiber web compensation platform 8 is inclined downwards (i.e. falls downwards), but then under the operation of the driving shaft driving mechanism 5 driving the nonwoven fiber web compensation platform front actuating mechanism 6 and the nonwoven fiber web compensation platform rear actuating mechanism 7, the right end of the nonwoven fiber web compensation platform 8 is restored to the horizontal state shown in fig. 6, and under this state, the nonwoven fiber web stored temporarily is digested (eliminated) by the drafting machine, so that the above-mentioned technological effects of the applicant are achieved alternately. Further, according to the common general knowledge, the holding-net compensating curtain 83 is in a normal cotton conveying state during a period in which the base curtain 101 of the lapping machine normally conveys the nonwoven fiber web, that is, in a state in which no redundant nonwoven fiber web is produced.

As can be seen from the above description and combined with the general knowledge, the drafting machine or the feeding machine as the subsequent device 9 moves at a constant speed, and the nonwoven web compensating device matched with the lapping machine provided by the utility model forms compensating movement between the variable speed output of the bottom curtain 101 of the lapping machine and the constant speed input of the subsequent device 9, so that the average speed of the bottom curtain 101 of the lapping machine is matched with the constant speed of the subsequent device 9. Further, it is understood that if the structure of the present utility model is not present between the lapping machine 10 and the succeeding apparatus 9, the speed of the bottom curtain 101 of the lapping machine is increased or decreased, and the succeeding apparatus 9 is uniform, periodic uneven phenomena such as stretching and stacking are necessarily generated in the longitudinal direction of the fiber web, and the width and thickness of the web are uneven. When the speed of the bottom curtain 101 of the lapping machine is larger than that of the back-end equipment 9, the right end of the non-woven fiber cotton net compensating platform 8 of the utility model is declined to form a drop, the net tyre which is not digested later is stored, when the speed of the bottom curtain 101 of the lapping machine is smaller than that of the back-end equipment 9, the right end of the non-woven fiber cotton net compensating platform 8 is lifted, the cotton net stored previously is conveyed leftwards, namely to the back-end equipment 9, the drop is reduced, and the cycle is performed.

In summary, the technical scheme provided by the utility model overcomes the defects in the prior art, successfully completes the task of the utility model, and faithfully honors the technical effects carried by the applicant in the technical effect column above.

Claims (10)

1. A nonwoven fibrous web compensating device matched with a lapping machine, which is characterized in that: the device comprises a front chassis (1), a rear chassis (2) and a chassis connecting frame (3), wherein the front chassis (1) and the rear chassis (2) are correspondingly arranged in front of and behind each other, and the chassis connecting frame (3) is fixedly connected to the lower part between the opposite sides of the front chassis (1) and the rear chassis (2); a transmission shaft (4) and a transmission shaft driving mechanism (5), wherein the transmission shaft (4) is horizontally arranged corresponding to the position above the case connecting frame (3), the front end of the transmission shaft (4) is rotatably supported on the front case (1), the rear end of the transmission shaft (4) is rotatably supported on the rear case (2), and the transmission shaft driving mechanism (5) is arranged in a front case cavity (11) of the front case (1) or a rear case cavity (21) of the rear case (2) and is in transmission connection with the transmission shaft (4); a non-woven fiber web compensation platform front actuating mechanism (6) and a non-woven fiber web compensation platform rear actuating mechanism (7), wherein the non-woven fiber web compensation platform front actuating mechanism (6) is arranged on one side of the front chassis (1) facing the rear chassis (2) and is in transmission connection with the front end of the transmission shaft (4), and the non-woven fiber web compensation platform rear actuating mechanism (7) is arranged on one side of the rear chassis (2) facing the front chassis (1) and is in transmission connection with the rear end of the transmission shaft (4); a nonwoven web compensation platform (8), the nonwoven web compensation platform (8) being located between the opposite sides of the front chassis (1) and the rear chassis (2), the nonwoven web compensation platform front actuation mechanism (6) being mated with the front right end of the nonwoven web compensation platform (8), and the nonwoven web compensation platform rear actuation mechanism (7) being mated with the rear right end of the nonwoven web compensation platform (8).

2. The nonwoven fibrous web compensating apparatus for use with a lapping machine of claim 1 wherein: the case connecting frame (3) comprises a case connecting frame left beam (31), a case connecting frame right beam (32), a front connecting beam (33), a rear connecting beam (34) and an intermediate connecting beam (35), the front end face of the case connecting frame left beam (31) is fixed with the lower part of one side of the front case (2) facing the front case (1) through a case connecting frame left beam front fixing seat (311), the rear end face of the case connecting frame left beam (31) is fixed with the lower part of one side of the rear case (2) facing the front case (1) through a case connecting frame left beam rear fixing seat (312), the front end face of the case connecting frame right beam (32) is fixed with the lower part of one side of the front case (1) facing the rear case (2) through a case connecting frame right beam front fixing seat (321), the rear end face of the case connecting frame right beam (32) is fixed with the lower part of one side of the rear case (2) facing the front case (1) through a case connecting frame right beam rear fixing seat (322), the front connecting beam (33) is fixed between the front end face of the front connecting frame right beam (31) and the front end of the front case (32) facing the front case (32), the middle connecting cross beam (35) is fixed between the middle part of the left beam (31) of the chassis connecting frame and the opposite side of the middle part of the right beam (32) of the chassis connecting frame; when the transmission shaft driving mechanism (5) is arranged in the front chassis cavity (11), the transmission shaft driving mechanism (5) is in transmission connection with the front end of the transmission shaft (4), and when the transmission shaft driving mechanism (5) is arranged in the rear chassis cavity (21), the transmission shaft driving mechanism (5) is in transmission connection with the rear end of the transmission shaft (4), the front end of the transmission shaft (4) corresponds to the upper part of the middle part of the front connecting beam (33) in the length direction, the middle part of the transmission shaft (4) corresponds to the upper part of the middle connecting beam (35) in the length direction, and the rear end of the transmission shaft (4) corresponds to the upper part of the middle part of the rear connecting beam (34) in the length direction; the non-woven fiber web compensation platform front actuating mechanism (6) is arranged on one side of the front machine box (1) facing the rear machine box (2) in a state of inclining from top to bottom to left, the non-woven fiber web compensation platform rear actuating mechanism (7) is arranged on one side of the rear machine box (2) facing the front machine box (1) in a state of inclining from top to bottom to left, and the distance between the non-woven fiber web compensation platform front actuating mechanism (6) and the non-woven fiber web compensation platform rear actuating mechanism (7) is matched with the width of the non-woven fiber web compensation platform (8).

3. The nonwoven fibrous web compensating apparatus for use with a lapping machine of claim 2 wherein: a front case opening and closing door (12) for closing or opening the front case cavity (11) is hinged on one side of the front case (1) facing away from the rear case (2) through a pair of front case opening and closing door hinges (121), and a front case fixing bottom plate (13) of the front case (1) is fixed with an embedded part on a terrace of a use place in a use state; a rear case opening and closing door (22) for closing or opening the rear case cavity (21) is hinged on one side of the rear case (2) opposite to the front case (1) through a pair of rear case opening and closing door hinges (221), and a rear case fixing bottom plate (23) of the rear case (2) is fixed with an embedded part on a terrace of a use place in a use state; front cabinet ventilation grooves (14) for enabling the front cabinet cavity (11) to be communicated with the outside are formed in the front cabinet left cabinet wall and the front cabinet right cabinet wall of the front cabinet (1) at intervals and are located in the middle area of the front cabinet left cabinet wall and the front cabinet right cabinet wall in the height direction, and rear cabinet cavity ventilation grooves (24) for enabling the rear cabinet cavity (21) to be communicated with the outside are formed in the rear cabinet left cabinet wall and the rear cabinet right cabinet wall of the rear cabinet (2) at intervals and are located in the middle area of the rear cabinet left cabinet wall and the rear cabinet right cabinet wall in the height direction.

4. A nonwoven fibrous web compensating apparatus in combination with a lapping machine as claimed in claim 3, wherein: the transmission shaft driving mechanism (5) is arranged in the front chassis cavity (11), the transmission shaft driving mechanism (5) comprises a transmission shaft driving motor (51), a transmission shaft driving reduction gearbox (52) and a reduction gearbox fixing seat connecting frame (53), the transmission shaft driving motor (51) is a motor with a positive and negative rotation function, the transmission shaft driving motor (51) is in transmission fit with the transmission shaft driving reduction gearbox (52) and is supported on the front chassis fixing base plate (13) together with the transmission shaft driving motor (51) and is fixed with the transmission shaft driving reduction gearbox fixing seat (521), a transmission shaft driving reduction gearbox final-stage power output shaft of the transmission shaft driving reduction gearbox (52) is in transmission connection with the front end of the transmission shaft (4), the reduction gearbox fixing seat connecting frame (53) is fixed with one side of the front chassis right chassis wall of the front chassis (1) towards the front chassis cavity (11) through a transmission shaft driving reduction gearbox fixing seat connecting screw (531), and the reduction gearbox fixing seat connecting frame (53) is fixedly connected with the transmission shaft driving reduction gearbox (521).

5. The nonwoven fibrous web compensating apparatus for use with a lapping machine of claim 2 wherein: a front end of the transmission shaft (4) is provided with a transmission shaft front shaft head (41), the transmission shaft front shaft head (41) is rotatably supported on a front shaft head supporting shaft bearing seat (411), the front shaft head supporting shaft seat (411) is fixed with the lower part of one side of the front chassis (1) facing the rear chassis (2), a front shaft head driving pulley (412) is fixed on the transmission shaft front shaft head (41) and at a position corresponding to the rear side of the front shaft head supporting shaft seat (411) in a flat key fixing manner, a transmission shaft rear shaft head (42) is formed at the rear end of the transmission shaft (4), the transmission shaft rear shaft head (42) is rotatably supported on a rear shaft head supporting shaft bearing seat (421), the rear shaft head supporting shaft bearing seat (421) is fixed with the lower part of one side of the rear chassis (2) facing the front chassis (1), a rear shaft head driving pulley (422) is fixed on the transmission shaft rear shaft head (42) and at a position corresponding to the front side of the rear supporting shaft bearing seat (421) in a flat key fixing manner, a transmission shaft supporting device (43) is rotatably supported on the middle part of the transmission shaft (4) in the length direction, and the transmission shaft supporting device is connected with the middle beam (35); the non-woven fiber web compensation platform front actuating mechanism (6) is in transmission connection with the front shaft head driving belt pulley (412), and the non-woven fiber web compensation platform rear actuating mechanism (7) is in transmission connection with the rear shaft head driving belt pulley (422).

6. The nonwoven fibrous web compensating apparatus for use with a lapping machine of claim 5 wherein: the position of the non-woven fiber web compensation platform rear actuating mechanism (7) corresponds to the position of the non-woven fiber web compensation platform front actuating mechanism (6), the non-woven fiber web compensation platform front actuating mechanism (6) comprises a front transmission belt tension roller (61), a front transmission belt tension roller lifting adjusting plate (62), a front transmission belt tension roller adjusting plate adjusting bolt (63), a front transmission belt (64), a front guide rail (65), a front guide rail sliding block (66), a front transmission belt clamping block (67), a non-woven fiber web compensation platform front actuating roller (68) and a front transmission belt pressing roller (69), the front transmission belt tension roller (61) is positioned on one side of the front chassis (1) facing the rear chassis (2) and is rotationally arranged on the front transmission belt tension roller (612) through a front transmission belt tension roller bearing (611), the front end of the front transmission belt tension roller shaft (612) is fixed on the rear side of the front transmission belt tension roller adjusting plate (62), the front transmission belt lifting adjusting plate (62) is matched with the front transmission belt tension roller lifting adjusting plate (15 at the left side of the front chassis (631) and the front transmission belt tension roller lifting adjusting plate (2) and the left side of the front transmission belt tension roller adjusting plate (63) and is matched with the front transmission belt lifting adjusting plate (15), the middle part of the front driving belt tension pulley adjusting bolt (63) is in threaded fit with a front nut block (632), the upper end of the front driving belt tension pulley adjusting bolt (63) extends above the front nut block (632) and forms a front driving belt tension pulley adjusting bolt operating head (633) at the upper end, the bolt front connecting block (631) is fixed with the upper part of the rear side of the front driving belt tension pulley lifting adjusting plate (62) through a bolt front connecting block screw (6311), the front nut block (632) is fixed with one side of the front chassis (1) facing the rear chassis (2) through a front nut block fixing screw (6321), the upper end of the front driving belt (64) is sleeved on the front driving belt tension pulley (61), the lower end is sleeved on the front spindle head driving pulley (412), the front guide rail (65) is fixed with the rear side of the front guide rail fixing plate (651), the front guide rail fixing plate (651) is fixed on the rear side of the front chassis (1) in a state of being inclined from top to bottom, the front guide rail seat (65is defined on one side of the front chassis (2) facing the rear side of the front guide rail seat (62), the slider seat (65is defined on one side of the front guide rail seat (3) and the slider seat (62) is fixed on the front side of the front chassis (2), a front rail slider lower limit seat (6512) is fixed at the rear side of the lower end of the front rail fixing plate (651), a front rail slider lower limit seat limit flange (65121) is arranged at the upper part of the front rail slider lower limit seat (6512) and at the position corresponding to the lower part of the front rail slider (66), the front rail slider (66) and the front rail (65) form a sliding pair in a sliding manner, a nonwoven web compensation platform front side clamping block (661) is fixed at the right side of the front rail slider (66), the nonwoven web compensation platform front side clamping block (661) is contacted with the front side surface of the nonwoven web compensation platform (8), the front driving belt clamping block (67) is positioned in a front driving belt cavity (641) of the front driving belt (64) and is fixed with the front rail slider (66) in a state of clamping the front driving belt (64) corresponding to the left side part of the front rail slider (66), a nonwoven web compensation platform front actuation roller (68) is arranged at the front driving belt shaft (681) through a front actuation roller (681) at the front side of the front roller shaft (681) and is arranged at the front driving belt shaft (681) side of the front driving belt head (681) in a rotating position corresponding to the front driving belt shaft (681), the upper end of the front transmission belt pinch roller frame (691) is connected with a front transmission belt pinch roller frame connecting block (692) through a front transmission belt pinch roller frame connecting block screw (692 1), and the front transmission belt pinch roller frame connecting block (692) is fixed with one side of the front chassis (1) facing the rear chassis (2); the nonwoven web compensation platform front actuation roller (68) cooperates with the front right end of the nonwoven web compensation platform (8).

7. The nonwoven fibrous web compensating apparatus for use with a lapping machine of claim 6 wherein: the transmission shaft bearing device (43) comprises a bearing wheel frame (431), a first bearing wheel I (432), a second bearing wheel II (433) and a third bearing wheel III (434), wherein the bearing wheel frame (431) is fixed with the middle part of the rear side of the middle connecting beam (35), the bearing wheel frame (431) is provided with a C-shaped cavity (4311), the first bearing wheel I (432) is rotationally arranged at the upper left part of the C-shaped cavity (4311) of the bearing wheel frame (431) through a first bearing wheel axle I (4321), the second bearing wheel II (433) is rotationally arranged at the upper right part of the C-shaped cavity (4311) of the bearing wheel frame (431) through a second bearing wheel axle II (4331), and the third bearing wheel III (434) is rotationally arranged at the bottom of the C-shaped cavity (4311) of the bearing wheel frame (431) through a third bearing wheel axle III (4341); the front transmission belt tensioning wheel (61) and the front shaft head transmission belt pulley (412) are synchronous belt wheels, and the front transmission belt (64) is a synchronous belt.

8. The nonwoven fibrous web compensating apparatus for use with a lapping machine of claim 6 wherein: the rear actuating mechanism (7) of the non-woven fiber cotton web compensation platform comprises a rear transmission belt tension wheel (71), a rear transmission belt tension wheel lifting adjusting plate (72), a rear transmission belt tension wheel adjusting bolt (73), a rear transmission belt (74), a rear guide rail (75), a rear guide rail sliding block (76), a rear transmission belt clamping block (77), a non-woven fiber cotton web compensation platform rear actuating roller (78) and a rear transmission belt tension wheel (79), wherein the position of the rear transmission belt tension wheel (71) corresponds to that of the front transmission belt tension wheel (61), the rear transmission belt tension wheel (71) is positioned on one side of the rear chassis (2) facing the front chassis (1) and is rotationally arranged on a rear transmission belt tension wheel shaft head (712) through a rear transmission belt tension wheel bearing (711), the front end part of the rear transmission belt tension wheel (712) is fixed on the rear side of the rear transmission belt tension wheel lifting adjusting plate (72), the rear transmission belt tension wheel lifting adjusting plate (72) is connected with a left transmission belt tension wheel (731) arranged on one side of the rear chassis (2) facing the lower sliding adjusting plate (25) of the front chassis (1) and is rotationally matched with a lower transmission belt tension adjusting plate (25), the middle part of the rear drive belt tension pulley adjusting bolt (73) is in threaded fit with a rear nut block (732), the upper end of the rear drive belt tension pulley adjusting bolt (73) extends above the rear nut block (732) and is provided with a rear drive belt tension pulley adjusting bolt operating head (733) at the upper end, the bolt rear connecting block (731) is fixed with the upper part of the rear side of the rear drive belt tension pulley lifting adjusting plate (72) through a bolt rear connecting block screw (7311), the rear nut block (732) is fixed with one side of the rear case (2) facing the front case (1) through a rear nut block fixing screw (7321), the upper end of the rear drive belt (74) is sleeved on the rear drive belt tension pulley (71), the lower end is sleeved on the rear spindle head driving pulley (422), the rear guide rail (75) is fixed with the front side of the rear guide rail fixing plate (751) in a state of being inclined from top to bottom, the rear case (2) is fixed with the upper part of the rear side of the rear case (72) at a position corresponding to the front guide rail seat (75) of the slider (75) and is limited on the front side of the rear case (62) at a position corresponding to the front guide rail seat (75), a rear rail slider lower limit seat (751) is fixed on the front side of the lower end of the rear rail fixing plate (751), a rear rail slider lower limit seat limit flange (75121) is arranged at the upper part of the rear rail slider lower limit seat (751) and at the position corresponding to the lower part of the rear rail slider (76), the rear rail slider (76) and the rear rail (75) form a sliding pair in a sliding manner, a nonwoven web compensation platform rear side clamping block (761) is fixed on the right side of the rear rail slider (76), the nonwoven web compensation platform rear side clamping block (761) is contacted with the rear side surface of the nonwoven web compensation platform (8), the rear belt clamping block (77) is positioned in a rear belt cavity (741) of the rear belt (74) and is fixed with the rear rail slider (76) in a state of clamping the rear belt (74) corresponding to the left side part of the rear rail slider (76), a nonwoven web compensation platform rear actuating roller (78) is arranged on the lower side of the rear pulley shaft (781) through the rear actuating roller (781) at the rear roller shaft side of the rear roller shaft (781) in a state of clamping the left side of the rear rail slider (76), the nonwoven web compensation platform rear actuating roller (78) is arranged at the position corresponding to the lower roller shaft (781) of the rear roller shaft (781) and is contacted with the rear roller shaft (781), the upper end of the rear transmission belt pinch roller frame (791) is connected with a rear transmission belt pinch roller frame connecting block (792) through a rear transmission belt pinch roller frame connecting block screw (7921), and the rear transmission belt pinch roller frame connecting block (792) is fixed with one side of the rear chassis (2) facing the front chassis (1); the rear transmission belt tensioning wheel (71) and the rear shaft head transmission belt pulley (422) are synchronous belt wheels, and the rear transmission belt (74) is a synchronous belt; the distance between the front transmission belt tensioning wheel (61) and the rear transmission belt tensioning wheel (71) is adapted to the width of the non-woven fiber web compensation platform (8); the nonwoven web compensation platform rear actuation roller (78) cooperates with the rear right end of the nonwoven web compensation platform (8).

9. The nonwoven fibrous web compensating apparatus for use with a lapping machine of claim 8 wherein: the nonwoven web compensating platform (8) comprises a left roller (81) of a supporting net compensating curtain, a right roller (82) of the supporting net compensating curtain, a supporting net compensating curtain (83), a front supporting wallboard (84) of the roller shaft head, a rear supporting wallboard (85) of the roller shaft head and a group of connecting wallboards (86), wherein a front roller head (811) of the supporting net compensating curtain extends at the central position of the front end face of the left roller (81) of the supporting net compensating curtain, the base part of the front roller head (811) of the supporting net compensating curtain is rotatably supported at the left end of the front supporting wallboard (84) of the roller shaft head through a supporting net compensating curtain left roller head supporting bearing seat (8111), the tail end of the front roller shaft head (811) of the supporting net compensating curtain is rotatably supported on a drawing machine or a feeding machine serving as a back device (9) through the tail end supporting bearing seat of the front roller head of the supporting net compensating curtain left roller head, a left rear roller shaft head (812) of the supporting net compensating curtain left roller shaft head is extended at the central position of the rear end face of the front end face of the supporting net compensating curtain (81), the rear roller head (812) of the supporting net compensating curtain left roller head is rotatably supported at the tail end of the rear roller head (812) of the back roller head (21) of the back supporting net supporting machine in a state of the back roller head (21) through the tail end supporting net supporting the tail end of the front roller head of the roller head supporting plate (84) of the supporting net compensating curtain in use, the tail end of the back roller head supporting net supporting left roller head is rotatably supported at the tail end of the roller head supporting machine (21, a supporting net compensating curtain right roll shaft front shaft head (821) is extended at the center of the front end face of the supporting net compensating curtain right roll shaft (82), the supporting net compensating curtain right roll shaft front shaft head (821) is rotatably supported at the right end of a roll shaft head front supporting wallboard (84) through a supporting net compensating curtain right roll shaft front shaft head supporting bearing seat (8211), a supporting net compensating curtain right roll shaft rear shaft head (822) is extended at the center of the rear end face of the supporting net compensating curtain right roll shaft (82), the supporting net compensating curtain is rotatably supported at the right end of a roll shaft head rear supporting wallboard (85) through a supporting net compensating curtain right roll shaft head supporting bearing seat (8221), the left end of the supporting net compensating curtain (83) is sleeved on the supporting net compensating curtain left roll shaft (81), the right end of the supporting net compensation curtain (83) is sleeved on a supporting net compensation curtain right roll shaft (82), a roll shaft head front supporting wall plate bearing seat bracket arm (841) is fixed at the left end of a roll shaft head front supporting wall plate (84), a supporting net compensation curtain left roll shaft head front supporting bearing seat (8111) is fixed at the left end of the roll shaft head front supporting wall plate bearing seat bracket arm (841), a supporting net compensation curtain right roll shaft head supporting shaft seat adjusting device (842) is arranged at the right end of the roll shaft head front supporting wall plate (84), a supporting net compensation curtain right roll shaft head supporting bearing seat (8211) is arranged on the supporting net compensation curtain right roll shaft head front supporting shaft head supporting shaft seat adjusting device (842), a front actuating roller matching seat (843) is fixed at the lower part of the right end of a roller shaft head front supporting wallboard (84) and at the left side of a roller shaft head supporting bearing seat adjusting device (842) of the supporting net compensating curtain, a rolling pair is formed by a front actuating roller (68) of the non-woven fiber cotton net compensating platform and a front actuating roller matching seat cavity (8431) of the front actuating roller matching seat (843), a roller shaft head rear supporting wallboard bearing seat bracket arm (851) is fixed at the left end of a roller shaft head rear supporting wallboard (85), a supporting net compensating curtain left roller shaft head rear supporting bearing seat (8121) is fixed at the left end of the roller shaft head rear supporting wallboard bearing seat bracket arm (851), a supporting net compensation curtain right roll shaft rear shaft head supporting bearing seat adjusting device (852) is arranged at the right end of the roll shaft head rear supporting wallboard (85), a supporting net compensation curtain right roll shaft rear shaft head supporting bearing seat (8221) is arranged on the supporting net compensation curtain right roll shaft rear shaft head supporting bearing seat adjusting device (852), a rear actuating roller matching seat (853) is fixed at the lower part of the right end of the roll shaft head rear supporting wallboard (85) and at the left side of the supporting net compensation curtain right roll shaft head supporting bearing seat adjusting device (852), a non-woven fiber cotton web compensation platform rear actuating roller (78) and a rear actuating roller matching seat cavity (8531) of the rear actuating roller matching seat (853) form a rolling pair, and a group of wallboard connecting cross beams (86) are respectively connected with a plurality of components in a spacing state, the front bearing wallboard (84) of the roll shaft head and the rear bearing wallboard (85) of the roll shaft head are arranged between the left end, the middle part and the right end; the left roller shaft (81) and the right roller shaft (82) of the supporting net compensation curtain are synchronous belt rollers, and the supporting net compensation curtain (83) is a leather curtain with a synchronous belt structure; the front side clamping block (661) of the non-woven fiber web compensation platform is in contact with the front side of the front supporting wallboard (84) of the roll shaft head, and the rear side clamping block (761) of the non-woven fiber web compensation platform is in contact with the rear side of the rear supporting wallboard (85) of the roll shaft head.

10. The nonwoven fibrous web compensating apparatus in combination with a lapping machine of claim 9 wherein: the structure of the supporting net compensation curtain right roll shaft rear shaft head supporting bearing seat adjusting device (852) is the same as that of the supporting net compensation curtain right roll shaft front shaft head supporting bearing seat adjusting device (842), the supporting net compensation curtain right roll shaft front shaft head supporting bearing seat adjusting device (842) comprises a bearing seat supporting adjusting arm (8421), an adjusting screw traction block (8422), an adjusting arm adjusting screw (8423) and an adjusting screw matching nut block (8424), the right end of the bearing seat supporting adjusting arm (8421) extends out of the right end face of the roll shaft head front supporting wallboard (84) and is provided with a C-shaped bearing seat fixing head (84211), the C-shaped bearing seat fixing head (84211) is provided with a bearing supporting cavity (84212), the position of the supporting net compensation curtain right roll shaft front shaft head supporting bearing seat (8211) at the rear side corresponding to the C-shaped bearing seat fixing head (84211) is fixed with the right end of the bearing seat supporting adjusting arm (8421), the middle upper surface of the bearing seat supporting adjusting arm (8421) and the upper guide (84213) form a sliding pair, the middle part upper surface of the bearing seat supporting adjusting arm (8421) and the upper guide plate (36) form a sliding pair with the lower guide arm supporting end of the sliding plate (36) and the upper guide plate (3883) of the lower guide plate (36) are fixed with the upper guide plate (3828) and the lower guide plate (383) supporting the lower guide plate (36) supporting the upper sliding plate (3828) supporting the lower sliding plate (383), the limiting backboard (84215) is fixed with the rear cavity wall of the front supporting wallboard cavity (844), the adjusting screw traction block (8422) is fixed with the front side of the right end of the bearing seat supporting adjusting arm (8421) through an adjusting screw traction block screw (84221), the left end of the adjusting arm adjusting screw (8423) is rotatably penetrated on the adjusting screw traction block (8422), the middle part of the adjusting arm adjusting screw is in threaded fit with the adjusting screw matching nut block (8424), the left end of the adjusting arm adjusting screw (8423) extends to the left side of the adjusting screw matching nut block (8424) and is provided with an operation square head or an operation hexagon head (84231), and the adjusting screw matching nut block (8424) is fixed with the front side of the roller shaft head front supporting wallboard (84) through an adjusting screw matching nut block screw (84241).