CN213172861U

CN213172861U - Through shaft type single needle plate ectopic opposite needling machine

Info

Publication number: CN213172861U
Application number: CN202021676626.1U
Authority: CN
Inventors: 杨长辉; 杨博
Original assignee: Guangdong Sanhui Nonwoven Machinery Co ltd
Current assignee: Guangdong Sanhui Nonwoven Machinery Co ltd; Guangdong Sanhui Nonwoven Technology Co ltd
Priority date: 2020-08-13
Filing date: 2020-08-13
Publication date: 2021-05-11
Anticipated expiration: 2030-08-13

Abstract

A through-shaft type single-needle-plate ectopic opposite needling machine comprises a machine frame, a needling correcting device and an agnail device, wherein the needling correcting device comprises a needling mechanism, a first screen stripping plate and a first screen supporting plate; the barb device comprises a lower needling mechanism, a second screen stripping plate and a second screen supporting plate; the upper needling mechanism and the lower needling mechanism respectively comprise a needling driving device, a transmission shaft component, a needling component, a plurality of lifting transmission mechanisms and a plurality of balancing devices; the transmission shaft assembly comprises a straight shaft; a first eccentric wheel of the lifting transmission mechanism is arranged on the straight shaft; the balancing device comprises a second eccentric wheel, a second guide sleeve, a second rocker arm, a guide rod and a balancing weight block, the second eccentric wheel is installed on the straight shaft and is opposite to the eccentric direction of the first eccentric wheel, the first end of the second rocker arm is sleeved on the second eccentric wheel, the first end of the guide rod is hinged to the second end of the second rocker arm, and the balancing weight block is installed on the guide rod. The utility model discloses transmission shaft subassembly can keep steady operation when carrying out the acupuncture, avoids producing violent vibration and rocking at the during operation.

Description

Through shaft type single needle plate ectopic opposite needling machine

Technical Field

The utility model relates to a needle loom, concretely relates to lead to shaft type single faller dystopy to thorn machine.

Background

The needle punching method is one of the most main processing technologies of the non-woven fabric, the types of needle punching machines are various, and the ectopic opposite needle punching machine is one of the needle punching machines.

The ectopic opposite-needling machine generally comprises a frame, an thorn correcting device, an agnail device, a net feeding mechanism and a drawing mechanism; the net feeding mechanism, the net straightening device, the barb device and the drawing mechanism are all arranged on the rack, the drawing mechanism is positioned behind the net feeding mechanism, the barb straightening device and the barb device are both positioned between the drawing mechanism and the net feeding mechanism, and the barb device is positioned in front of or behind the barb straightening device; the positive needling device comprises a needling mechanism, a first screen stripping plate and a first screen supporting plate, wherein the first screen stripping plate is positioned above the first screen supporting plate, and the needling mechanism is positioned above the first screen stripping plate; the barb device is including lower acupuncture mechanism, second shell otter board and second support otter board, and the second shell otter board is in second support otter board below, and lower acupuncture mechanism is in second shell otter board below, and the second is shelled the clearance between otter board and the second support otter board and is just to the clearance between first shell otter board and the first support otter board. In the ectopic opposite needling machine, the gaps between the first net stripping plate and the first net supporting plate and the gaps between the second net stripping plate and the second net supporting plate can be used for the fiber webs to pass through, the gaps between the first net stripping plate and the first net supporting plate and the regions corresponding to the upper needling mechanism form a positive needling region, and the gaps between the second net stripping plate and the second net supporting plate and the regions corresponding to the lower needling mechanism form a barbed region. The net feeding mechanism feeds the fiber web into the positive needling area and the barb area, the upper needling mechanism and the lower needling mechanism respectively perform repeated needling on the upper half part and the lower half part of the fiber web so as to consolidate the fluffy fiber web, and the needled fiber web is output from the positive needling area or the barb area by the drawing mechanism. The upper needling mechanism and the lower needling mechanism are key components of the ectopic opposite needling machine. Generally, the higher the number of times of needling in a unit time (i.e., the higher the needling frequency) and the higher the needling density (the number of needling in a unit area) in the upper and lower needling mechanisms, the better the quality of the obtained web and the higher the production efficiency. Therefore, the magnitude of the needling frequency is one of the important factors affecting the product quality.

In the existing single needle plate ectopic opposite needling machine, an upper needling mechanism and a lower needling mechanism generally comprise a machine frame, a transmission shaft assembly and a needle assembly, wherein the transmission shaft assembly is rotatably arranged on the machine frame and is connected with the needle assembly through a plurality of lifting transmission mechanisms; the transmission shaft assembly comprises a left half shaft, a right half shaft and a plurality of crankshafts sequentially connected between the left half shaft and the right half shaft; the crankshaft comprises two shaft heads and a boss which are integrally connected, the two shaft heads are respectively arranged on the left side and the right side of the boss, the axes of the two shaft heads are coincident, and the boss is cylindrical and the center line of the boss deviates from the axis of the shaft head; the axis of each shaft head, the axis of the left half shaft and the axis of the right half shaft are coincident; the lifting transmission mechanism comprises a rocker arm, a push rod and a guide sleeve, the upper part and the lower part of the guide sleeve are fixedly arranged on the rack, the push rod is positioned in the guide sleeve, the first end of the rocker arm is sleeved on a boss of the corresponding crank shaft, the second end of the rocker arm is hinged with the first end of the push rod, and the second end of the push rod is connected with the pricking pin component. The needle assembly generally includes a needle bar, a needle plate fixedly mounted on the needle bar, and a plurality of needles disposed on the needle plate (the needles are generally uniformly distributed on the needle plate), wherein the needle bar is coupled to the push rod. In the needling mechanism, the main motor drives the transmission shaft assembly to rotate through the belt transmission mechanism, each crankshaft on the transmission shaft assembly rotates (the boss of each crankshaft rotates around two shaft heads of each crankshaft) when the transmission shaft assembly rotates, the rocker arm drives the push rod to do vertical reciprocating linear motion along the guide sleeve, and the push rod drives the needling assembly to do vertical reciprocating linear motion, so that repeated needling is performed on the fiber web, and the fluffy fiber web is solidified through the needling.

However, when the upper needling mechanism and the lower needling mechanism carry out needling, because the self weights of each lifting transmission mechanism and each needle component are heavier, the transmission shaft component can generate strong inertia force during operation, so that the single needle plate is in dislocation to generate violent vibration and shaking to the needling machine, and simultaneously generate great noise; the single needle plate ectopic opposite needling machine generates violent vibration and shaking during working, and the quality and the yield of the needled product are seriously influenced. In addition, the transmission shaft assembly is provided with a plurality of crankshafts sequentially connected between the left half shaft and the right half shaft, each crankshaft comprises two shaft heads and one boss which are integrally connected, the structure is complex, the manufacturing difficulty is high, the manufacturing cost is high, and the outlines of all the bosses are difficult to ensure to be completely overlapped due to the installation precision and other reasons, so that the motion synchronism of each lifting transmission mechanism is difficult to ensure in the actual work process, and the sprain of a needle beam in the puncture needle assembly is often caused.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a lead to shaft type single faller dystopy is to thorn machine is provided, this kind leads to shaft type single faller dystopy to thorn machine transmission shaft subassembly when carrying out the acupuncture and can keep steady operation, effectively avoids producing violent vibration and rocking at the during operation, ensures the quality and the output of acupuncture product to noise abatement. The technical scheme is as follows:

a through-shaft type single-needle-plate ectopic opposite needling machine comprises a machine frame, a needling correcting device and an agnail device, wherein the needling correcting device and the agnail device are both arranged on the machine frame, and the agnail device is positioned in front of or behind the needling correcting device; the positive needling device comprises a needling mechanism, a first screen stripping plate and a first screen supporting plate, wherein the first screen stripping plate is positioned above the first screen supporting plate, and the needling mechanism is positioned above the first screen stripping plate; the barb device comprises a lower needling mechanism, a second screen stripping plate and a second screen supporting plate, wherein the second screen stripping plate is positioned below the second screen supporting plate, the lower needling mechanism is positioned below the second screen stripping plate, and a gap between the second screen stripping plate and the second screen supporting plate is over against a gap between the first screen stripping plate and the first screen supporting plate; go up acupuncture mechanism, acupuncture mechanism all includes acupuncture drive arrangement down, transmission shaft subassembly and felting needle subassembly, the transmission shaft subassembly is rotatable to be installed in the frame and is connected with acupuncture drive arrangement transmission, the transmission shaft subassembly is connected with the felting needle subassembly through a plurality of lifting drive mechanisms, lifting drive mechanism includes first eccentric wheel, first rocking arm, first uide bushing and push rod, first eccentric wheel fixed mounting is on the transmission shaft subassembly, the first end of first rocking arm is cup jointed on first eccentric wheel, first uide bushing fixed mounting moves towards about just in the frame, the push rod is in first uide bushing, the first end of push rod is held with the second of first rocking arm and is articulated, the second end of push rod is connected with the felting needle subassembly, its characterized in that: the transmission shaft assembly comprises a straight shaft with the axis in the left-right direction; the first eccentric wheel is fixedly arranged on the corresponding straight shaft; the upper needling mechanism and the lower needling mechanism respectively comprise a plurality of balancing devices, each balancing device is sequentially arranged along the corresponding straight shaft in the axial direction, each balancing device comprises a second eccentric wheel, a second guide sleeve, a second rocker arm, a guide rod and a balancing weight block, the second eccentric wheels are fixedly arranged on the corresponding straight shafts, the eccentric directions of the second eccentric wheels and the first eccentric wheels are opposite, the first ends of the second rocker arms are sleeved on the second eccentric wheels, the second guide sleeves are fixedly arranged on the machine frame and move up and down, the guide rods are positioned in the second guide sleeves, the first ends of the guide rods are hinged with the second ends of the second rocker arms, and the balancing weight blocks are arranged on the guide rods.

The utility model discloses in, the eccentric opposite direction of second eccentric wheel and first eccentric wheel means the biggest point of first footpath of second eccentric wheel and the biggest point of first footpath of first eccentric wheel 180 degrees of staggering each other in the circumference of straight axle.

In general, in the upper needling mechanism, the total weight of each balancing weight block is equivalent to the weight of the needle assembly, the eccentric directions of each first eccentric wheel are the same (namely, the profiles of each first eccentric wheel are completely coincident in the axial direction of the straight shaft), and the eccentric directions of each second eccentric wheel are the same (namely, the profiles of each second eccentric wheel are completely coincident in the axial direction of the straight shaft); in the lower needling mechanism, the total weight of each balancing weight block is equivalent to the weight of the needle assembly, the eccentric directions of the first eccentric wheels are the same (namely the profiles of the first eccentric wheels are completely overlapped in the straight axial direction), and the eccentric directions of the second eccentric wheels are the same (namely the profiles of the second eccentric wheels are completely overlapped in the straight axial direction).

In the upper needling mechanism, the transmission shaft assembly is positioned above the needling component, the first ends of the first rocker arm, the push rod, the second rocker arm and the guide rod are arranged on the upper side, and the second ends of the first rocker arm, the push rod, the second rocker arm and the guide rod are arranged on the lower side. In the lower needling mechanism, the transmission shaft assembly is positioned below the needling component, the first ends of the first rocker arm, the push rod, the second rocker arm and the guide rod are positioned below, and the second ends of the first rocker arm, the push rod, the second rocker arm and the guide rod are positioned above.

In the positive needling device, a gap between the first screen stripping plate and the first screen supporting plate can be used for a fiber web to pass through, the first screen stripping plate and the first screen supporting plate limit the fiber web together, and the gap between the first screen stripping plate and the first screen supporting plate and a region corresponding to the upper needling mechanism form a positive needling region; in the barb device, the gap between the second net stripping plate and the second net supporting plate can be used for the fiber web to pass through, the second net stripping plate and the second net supporting plate limit the fiber web together, and the gap between the second net stripping plate and the second net supporting plate and the corresponding region of the lower needling mechanism form a barb region. For the fiber webs with larger width, a web feeding mechanism is usually arranged in front of the barb correcting device and the barb device, and a drawing mechanism is usually arranged behind the barb correcting device and the barb device; the net feeding mechanism feeds the fiber web into the positive needling area and the barb area, the upper needling mechanism and the lower needling mechanism respectively perform repeated needling on the upper half part and the lower half part of the fiber web so as to consolidate the fluffy fiber web, and the needled fiber web is output from the positive needling area or the barb area by the drawing mechanism.

When the upper needling mechanism and the lower needling mechanism carry out needling, the transmission shaft component is driven by the needling driving device to rotate, the first eccentric wheel of each lifting transmission mechanism is driven by the straight shaft to rotate, the corresponding push rod is driven by the corresponding first rocker arm to reciprocate along the corresponding first guide sleeve, the needle punching component is driven to carry out lifting motion, repeated needling is carried out on the fiber web, and the fluffy fiber web is solidified under the action of the needling; meanwhile, the second eccentric wheels of the balancing devices rotate under the driving of the straight shaft, and the second eccentric wheels drive the guide rod and the balancing weights to do reciprocating lifting motion along the second guide sleeve through the second rocker arms. Because the eccentric directions of the second eccentric wheel and the first eccentric wheel are opposite, and the total weight of each balancing weight block is equivalent to the weight of the pricking pin component, therefore, the inertia force of the first eccentric wheel of each lifting transmission mechanism driving the push rod and the pricking pin component to do reciprocating lifting motion along the first guide sleeve through the first rocker arm is offset by the inertia force of the second eccentric wheel of each balancing device driving the guide rod and the balancing weight block to do reciprocating lifting motion along the second guide sleeve through the second rocker arm, moreover, the balancing devices and the lifting transmission mechanisms are sequentially arranged along the axial direction of the straight shaft, so that the stress of each position of the straight shaft is more uniform, thereby ensure that the transmission shaft subassembly can keep steady operation, effectively avoid single faller dystopy to the thorn machine to produce violent vibration and rock at the during operation, ensure the quality and the output of acupuncture product to noise abatement. In addition, the transmission shaft assembly adopts a through shaft type structure, so that the structure is simple, the manufacturing difficulty is low, the manufacturing cost can be effectively reduced, the eccentric directions of the first eccentric wheels are easy to be the same when the first eccentric wheels are arranged on the transmission shaft assembly (namely the outlines of the first eccentric wheels are completely overlapped in the straight shaft direction), the motion of each lifting transmission mechanism can be ensured to keep synchronism, and the sprain of a needle beam in the pricking needle assembly is avoided.

In a preferred embodiment, the barb device is located in front of the spur device. During operation, the fiber web firstly enters the barb area, the lower half part of the fiber web is repeatedly needled by the lower needling mechanism and then enters the positive needling area, the upper half part of the fiber web is repeatedly needled by the upper needling mechanism, and the needled fiber web is finally output from the positive needling area.

In another preferred scheme, the barb device is positioned behind the barb straightening device. During operation, the fibre web gets into in just stinging the region earlier, carries out the acupuncture repeatedly to the first half of fibre web by last acupuncture mechanism, and in the reentrant barb region, carries out the acupuncture repeatedly to the lower half of fibre web by lower acupuncture mechanism, and the fibre web after the acupuncture is exported from the barb region at last.

In a preferred scheme, in the upper needling mechanism, the number of the lifting transmission mechanisms is more than or equal to 3, the number of the balancing devices is 1 less than that of the lifting transmission mechanisms, and the lifting transmission mechanisms and the balancing devices are axially and alternately arranged along the corresponding straight shaft; in the lower needling mechanism, the number of the lifting transmission mechanisms is more than or equal to 3, the number of the balancing devices is 1 less than that of the lifting transmission mechanisms, and the lifting transmission mechanisms and the balancing devices are alternately arranged along the axial direction of the corresponding straight shaft.

In another preferred scheme, the number of the lifting transmission mechanisms in the upper needling mechanism and the lower needling mechanism is two, and the number of the balancing devices is also two. In this case, the two balancing devices may be disposed between the two lifting transmission mechanisms, the two lifting transmission mechanisms may be disposed between the two balancing devices, or the lifting transmission mechanisms and the balancing devices may be alternately arranged in the axial direction of the straight shaft.

In a preferable scheme, the second end of the guide rod is arranged in the second guide sleeve, and the balancing weight block is arranged on the middle part of the guide rod.

In a more preferable scheme, a supporting circular truncated cone with a small upper part and a large lower part is arranged in the middle of the guide rod, a circular truncated cone-shaped mounting hole with a small upper part and a large lower part is arranged in the middle of the balancing weight block, the circular truncated cone-shaped mounting hole is matched with the supporting circular truncated cone, and the supporting circular truncated cone is positioned in the circular truncated cone-shaped mounting hole and clings to the inner wall of the circular truncated cone-; the guide rod is sleeved with a locking ring, the locking ring is positioned at the lower side of the supporting circular truncated cone and is connected with the balancing weight block through a connecting piece (such as a bolt), and the upper side surface of the locking ring is tightly attached to the bottom of the supporting circular truncated cone. Adopt this kind of structure not only can conveniently install the balancing weight piece on the guide arm, can prevent the balancing weight piece dislocation moreover well. In the in-service use process, can conveniently change the balancing weight piece of different weights according to design parameter and on-the-spot debugging result.

In a preferable scheme, the transmission shaft assembly further comprises a left half shaft, a right half shaft, a left coupling flywheel and a right coupling flywheel, wherein the left half shaft and the right half shaft can be rotatably mounted on the rack, the axes of the left half shaft and the right half shaft are coincident with the axis of the straight shaft, the right end of the left half shaft is fixedly connected with the left end of the straight shaft through the left coupling flywheel, and the left end of the right half shaft is fixedly connected with the right end of the straight shaft through the right coupling flywheel; the left half shaft or the right half shaft is in transmission connection with the needling driving device. The left coupling flywheel and the right coupling flywheel are disc-shaped parts with large rotational inertia, and are used for storing energy to increase the rotational inertia and enable the transmission shaft assembly to rotate more stably.

In a more preferable scheme, the needling driving device comprises a needling driving motor, a driving pulley, a driven pulley and an annular synchronous belt, wherein the needling driving motor is installed on the rack, the driving pulley is installed on a power output shaft of the needling driving motor, the driven pulley is installed on the left half shaft or the right half shaft, and the driving pulley and the driven pulley jointly tension the annular synchronous belt.

In a preferred scheme, the stand is provided with two bearing seat groups, and the two bearing seat groups correspond to the two straight shafts one by one; each bearing seat group comprises a plurality of bearing seats which are sequentially arranged along the axial direction of the corresponding straight shaft, and each bearing seat is connected with the corresponding part on the corresponding straight shaft through a bearing. Like this, each bearing frame of bearing frame group can support corresponding straight axle jointly, can avoid the straight axle to appear warping because of bearing a burden is too big, effectively prolongs its life.

In a preferred embodiment, the straight shaft is fixedly provided with a plurality of dynamic balance wheels, and the dynamic balance wheels are sequentially arranged along the axial direction of the straight shaft. In a more preferable scheme, the dynamic balance wheels are the same in number and correspond to the balance devices one by one, and the dynamic balance wheels are positioned on the left side or the right side of the second eccentric wheel in the corresponding balance devices. Therefore, the plurality of dynamic balance wheels are arranged on the straight shaft, and each dynamic balance wheel is driven by the straight shaft to rotate, so that the stress of each position of the straight shaft is more uniform, the stability of the gravity center position of the straight shaft is enhanced, and the straight shaft can better keep stable operation.

In a more preferable scheme, the dynamic balance wheel comprises a wheel body and a balancing weight, a mounting hole is formed in the center of the wheel body, and the wheel body is fixedly mounted on the straight shaft through the mounting hole; the wheel body is provided with a mounting groove, the mounting groove is positioned on one side of the mounting hole, and the balancing weight is mounted in the mounting groove. Therefore, the gravity center position of the dynamic balance wheel can be eccentrically arranged, and the inertia force generated by each first eccentric wheel and each second eccentric wheel can be further ensured to be offset.

In a further preferred scheme, the balancing weight is installed in the installation groove through a detachable connection structure. The detachable connecting structure can be a bolt connecting structure, the bolt connecting structure comprises a bolt, a nut and a second through hole, the first through hole is formed in the wheel body, the second through hole is formed in the counterweight block, a screw rod of the bolt sequentially penetrates through the first through hole, the second through hole and the nut to be meshed, and the head of the bolt and the nut clamp the wheel body and the counterweight block together. According to the field debugging effect, change the balancing weight, need not to change whole dynamic balance wheel for the correction of dynamic balance, regulation convenient and fast can reach the balanced effect of preferred, make needle loom during operation steady, low noise.

In a preferred embodiment, each of the upper needling mechanism and the lower needling mechanism further includes a control circuit, a detection device for detecting whether the first eccentric wheel reaches a top dead center or a bottom dead center, and a resistance mechanism capable of applying resistance to the transmission shaft assembly, the detection device is electrically connected to a corresponding input end of the control circuit, and the resistance mechanism is electrically connected to a corresponding output end of the control circuit. In the upper needling mechanism, a detection device is used for detecting whether a first eccentric wheel reaches an upper dead point and sending a signal to a control circuit for processing; in the lower needling mechanism, the detection device is used for detecting whether the first eccentric wheel reaches the bottom dead center and sending a signal to the control circuit for processing. After the upper needling mechanism and the lower needling mechanism stop working, the control circuit applies certain resistance to the corresponding transmission shaft assembly through the resistance mechanism, so that the rotating speed of the transmission shaft assembly is gradually reduced; until the rotating speed of the transmission shaft assembly is slow, and the detection device detects that the first eccentric wheel reaches the top dead center or the bottom dead center, the detection device sends a signal to the control circuit, the control circuit enables the transmission shaft assembly to stop immediately through the resistance mechanism, and each first eccentric wheel is enabled to stop at the top dead center or the bottom dead center, so that each needle of the needle assembly can be enabled to be completely separated from the fiber web.

In a more preferable scheme, the detection device is a photoelectric eye, and the photoelectric eye is mounted on the frame and corresponds to the top dead center position of the first eccentric wheel; the resistance mechanism is gasbag formula band-type brake stopper, and gasbag formula band-type brake stopper is installed in the frame, the transmission shaft subassembly is in each friction disc of gasbag formula band-type brake stopper inboard. The specific structure of the above-mentioned gasbag formula band-type brake can refer to utility model patent specification with application number CN 201020124119.7.

The needle assembly generally includes a needle bar, a needle plate fixedly mounted on the needle bar, and a plurality of needles disposed on the needle plate (the needles are generally uniformly distributed on the needle plate), wherein the needle bar is coupled to the push rod. In the upper needling mechanism, a needle plate is positioned at the lower side of a needle beam, and needles are arranged on the lower surface of the needle plate. In the lower needling mechanism, a needle plate is positioned at the upper side of a needle beam, and needles are arranged on the upper surface of the needle plate.

The utility model discloses a lead to middle-upper acupuncture mechanism of shaft type single faller dystopy to thorn machine, lower acupuncture mechanism is when carrying out the acupuncture, because each lifting transmission mechanism's first eccentric wheel drives push rod and felting needle subassembly through first rocking arm and does reciprocating elevating motion's inertial force along first uide bushing, all can be by each balancing unit's second eccentric wheel drive guide arm and balanced balancing weight along the inertial force offset that reciprocating elevating motion was done to the second uide bushing through the second rocking arm, and with each balancing unit, each lifting transmission mechanism is arranged along the axial of straight axle in proper order, each position atress that can make the straight axle is comparatively even, thereby ensure that the transmission axle subassembly can keep steady operation, effectively avoid producing violent vibration and rocking at the during operation, ensure the quality and the output of acupuncture product, and noise abatement. In addition, the transmission shaft assembly adopts a through shaft type structure, so that the structure is simple, the manufacturing difficulty is low, the manufacturing cost can be effectively reduced, the eccentric directions of the first eccentric wheels are easy to be the same when the first eccentric wheels are arranged on the transmission shaft assembly (namely the outlines of the first eccentric wheels are completely overlapped in the straight shaft direction), the motion of each lifting transmission mechanism can be ensured to keep synchronism, and the sprain of a needle beam in the pricking needle assembly is avoided.

Drawings

Fig. 1 is a schematic structural diagram of a through shaft type single needle plate ectopic needling machine according to the preferred embodiment of the invention.

FIG. 2 is a schematic structural diagram of a lower needling mechanism in the through shaft type single needle plate ectopic opposite needling machine shown in FIG. 1.

FIG. 3 is a schematic structural diagram of an upper needling mechanism in the through shaft type single needle plate ectopic opposite needling machine shown in FIG. 1.

Fig. 4 is an enlarged view of fig. 3 at a.

Fig. 5 is a schematic structural view of the dynamic balance wheel.

Detailed Description

As shown in fig. 1-3, the through shaft type single needle plate ectopic opposite needling machine comprises a frame 1, a needling correcting device 2 and an agnail device 3, wherein the needling correcting device 2 and the agnail device 3 are both arranged on the frame 1, and the agnail device 3 is arranged in front of the needling correcting device 2; the positive needling device 2 comprises an upper needling mechanism 4, a first screen stripping plate 5 and a first screen supporting plate 6, wherein the first screen stripping plate 5 is positioned above the first screen supporting plate 6, and the upper needling mechanism 4 is positioned above the first screen stripping plate 5; the barb device 3 comprises a lower needling mechanism 7, a second mesh stripping plate 8 and a second mesh supporting plate 9, wherein the second mesh stripping plate 8 is positioned below the second mesh supporting plate 9, the lower needling mechanism 7 is positioned below the second mesh stripping plate 8, and a gap between the second mesh stripping plate 8 and the second mesh supporting plate 9 is over against a gap between the first mesh stripping plate 5 and the first mesh supporting plate 6.

The upper acupuncture mechanism 4 and the lower acupuncture mechanism 7 both comprise an acupuncture driving device 41, a transmission shaft assembly 42 and an acupuncture needle assembly 43, the transmission shaft assembly 42 is rotatably mounted on the frame 1 and is in transmission connection with the acupuncture driving device 41, the transmission shaft assembly 42 is connected with the acupuncture needle assembly 43 through a plurality of lifting transmission mechanisms 44, each lifting transmission mechanism 44 comprises a first eccentric wheel 441, a first rocker arm 442, a first guide sleeve 443 and a push rod 444, the first eccentric wheel 441 is fixedly mounted on the transmission shaft assembly 42, a first end of the first rocker arm 442 is sleeved on the first eccentric wheel 441, the first guide sleeve 443 is fixedly mounted on the frame 1 and runs up and down, the push rod 444 is positioned in the first guide sleeve 443, a first end of the push rod 444 is hinged with a second end of the first rocker arm 442, and a second end of the push rod 444 is connected with the acupuncture needle assembly 43; the transmission shaft assembly 42 comprises a straight shaft 421 with the axis in the left-right direction; the first eccentric wheel 441 is fixedly mounted on the corresponding straight shaft 421; the upper needling mechanism 4 and the lower needling mechanism 7 each further comprise a plurality of balancing devices 45, each balancing device 45 is arranged in sequence along the axial direction of the corresponding straight shaft 421, each balancing device 45 comprises a second eccentric wheel 451, a second guide sleeve 452, a second rocker arm 453, a guide rod 454 and a balancing weight 455, the second eccentric wheel 451 is fixedly mounted on the corresponding straight shaft 421, the eccentric direction of the second eccentric wheel 451 is opposite to that of the first eccentric wheel 441, a first end of the second rocker arm 453 is sleeved on the second eccentric wheel 451, the second guide sleeve 452 is fixedly mounted on the frame 1 and runs up and down, the guide rod 454 is located in the second guide sleeve 452, a first end of the guide rod 454 is hinged to a second end of the second rocker arm, and the balancing weight 455 is mounted on the guide rod 454.

In the present embodiment, in the upper needling mechanism 4, the total weight of each balancing weight 455 is equivalent to the weight of the lancet assembly 43, the eccentric direction of each first eccentric 441 is the same (i.e., the profile of each first eccentric 441 completely coincides with the axial direction of the straight shaft 421), and the eccentric direction of each second eccentric 451 is the same (i.e., the profile of each second eccentric 451 completely coincides with the axial direction of the straight shaft 421); in the lower needling mechanism 7, the total weight of each balancing weight 455 corresponds to the weight of the needle assembly 43, the eccentric direction of each first eccentric 441 is the same (i.e., the profile of each first eccentric 441 completely coincides with the axial direction of the straight shaft 421), and the eccentric direction of each second eccentric 451 is the same (i.e., the profile of each second eccentric 451 completely coincides with the axial direction of the straight shaft 421).

In this embodiment, in the upper lancing mechanism 4, the drive shaft assembly 42 is above the lancet assembly 43, the first ends of the first rocker arm 442, the push rod 444, the second rocker arm 453, and the guide rod 454 are above, and the second ends of the first rocker arm 442, the push rod 444, the second rocker arm 453, and the guide rod 454 are below; in the lower lancing mechanism 7, the drive shaft assembly 42 is located below the lancet assembly 43, the first ends of the first rocker arm 442, the push rod 444, the second rocker arm 453, and the guide rod 454 are located downward, and the second ends of the first rocker arm 442, the push rod 444, the second rocker arm 453, and the guide rod 454 are located upward.

In the present embodiment, in the upper needling mechanism 4, the number of the lifting transmission mechanisms 44 is greater than or equal to 3, the number of the balancing devices 45 is 1 less than that of the lifting transmission mechanisms 44, and each lifting transmission mechanism 44 and each balancing device 45 are axially and alternately arranged along the corresponding straight shaft 421; in the lower needling mechanism 7, the number of the lifting transmission mechanisms 44 is more than or equal to 3, the number of the balancing devices 45 is 1 less than that of the lifting transmission mechanisms 44, and each lifting transmission mechanism 44 and each balancing device 45 are axially and alternately arranged along the corresponding straight shaft 421.

In this embodiment, the transmission shaft assembly 42 further includes a left half shaft 422, a right half shaft 423, a left coupling flywheel 424 and a right coupling flywheel 425, the left half shaft 422 and the right half shaft 423 are both rotatably mounted on the frame 1, the axes of the left half shaft 422 and the right half shaft 423 are coincident with the axis of the straight shaft 421, the right end of the left half shaft 422 is fixedly connected with the left end of the straight shaft 421 through the left coupling flywheel 424, and the left end of the right half shaft 423 is fixedly connected with the right end of the straight shaft 421 through the right coupling flywheel 425; the needle driving device 41 comprises a needle driving motor 411, a driving pulley 412, a driven pulley 413 and an annular synchronous belt (not shown in the figure), wherein the needle driving motor 411 is installed on the machine frame 1, the driving pulley 412 is installed on a power output shaft of the needle driving motor 411, the driven pulley 413 is installed on a left half shaft 422, and the driving pulley 412 and the driven pulley 413 jointly tension the annular synchronous belt.

In this embodiment, the needle assembly 43 includes a needle beam 431, a needle plate 432 and a plurality of needles 433, the needle plate 432 is fixedly mounted on the needle beam 431, the needles 433 are disposed on the needle plate 432 (the needles 433 are uniformly distributed on the needle plate 432), wherein the needle beam 431 is connected with the push rod 444. In the upper needling mechanism 4, a needle board 432 is located on the lower side of a needle beam 431, and needles 433 are provided on the lower surface of the needle board 432. In the lower needling mechanism 7, a needle board 432 is located on the upper side of a needle beam 431, and needles 433 are provided on the upper surface of the needle board 432.

In this embodiment, two bearing seat sets 11 are installed on the frame 1, and the two bearing seat sets 11 correspond to the two straight shafts 421 one by one; each bearing seat set 11 includes a plurality of bearing seats 111 arranged in sequence along the axial direction of the corresponding straight shaft 421, and each bearing seat 111 is connected with a corresponding portion of the corresponding straight shaft 421 through a bearing. Thus, each bearing seat 111 of the bearing seat group 11 can support the corresponding straight shaft 421 together, so that deformation of the straight shaft 421 due to excessive load can be avoided, and the service life of the straight shaft is effectively prolonged.

The upper needling mechanism 4 and the lower needling mechanism 7 each further include a control circuit (not shown), a detection device (not shown) for detecting whether the first eccentric wheel 441 reaches the top dead center or the bottom dead center, and a resistance mechanism 46 capable of applying resistance to the transmission shaft assembly 42, wherein the detection device is electrically connected to a corresponding input end of the control circuit, and the resistance mechanism 46 is electrically connected to a corresponding output end of the control circuit. In the present embodiment, the detecting device is a photoelectric eye, and the photoelectric eye is mounted on the frame 1 and corresponds to the top dead center position of the first eccentric wheel 441; the resistance mechanism 46 is an airbag type band-type brake which is installed on the machine frame 1, and the transmission shaft assembly 42 is positioned on the inner side of each friction plate of the airbag type band-type brake.

Referring to fig. 4, in the present embodiment, a second end of the guide rod 454 is located in the second guide sleeve 452, and the balancing weight 455 is installed on a middle portion of the guide rod 454; a supporting round table 4541 with a small upper part and a large lower part is arranged in the middle of the guide rod 454, a round table-shaped mounting hole 4551 with a small upper part and a large lower part is arranged in the middle of the balancing weight block 455, the round table-shaped mounting hole 4551 is matched with the supporting round table 4541, and the supporting round table 4541 is positioned in the round table-shaped mounting hole 4551 and clings to the inner wall of the round table-shaped mounting hole 4551; the guide rod 454 is sleeved with a locking ring 4542, the locking ring 4542 is arranged on the lower side of the supporting round platform 4541 and is connected with the balancing weight block 455 through a bolt, and the upper side of the locking ring 4542 is tightly attached to the bottom of the supporting round platform 4541.

Referring to fig. 2, 3 and 5, a plurality of dynamic balance wheels 47 are fixedly mounted on the straight shaft 421, and the dynamic balance wheels 47 are sequentially arranged along the axial direction of the straight shaft 421; the dynamic balance wheels 47 are in the same number and correspond to the balance devices 45 one by one, and the dynamic balance wheels 47 are positioned on the left side or the right side of the second eccentric wheel 451 in the corresponding balance devices 45. In this embodiment, the dynamic balance wheel 47 includes a wheel body 471 and a counterweight 472, a mounting hole 4711 is disposed at a central position of the wheel body 471, and the wheel body 471 is fixedly mounted on the straight shaft 421 through the mounting hole 4711; the wheel 471 is provided with a mounting groove 4712, the mounting groove 4712 is located at one side of the mounting hole 4711, and the counterweight 472 is mounted in the mounting groove 4712 through a bolt connecting structure 473.

The working principle of the through shaft type single needle plate ectopic needling machine is briefly described as follows:

in the positive needling device 2, a gap between the first screen stripping plate 5 and the first screen supporting plate 6 can be used for a fiber web to pass through, the first screen stripping plate 5 and the first screen supporting plate 6 limit the fiber web together, and the gap between the first screen stripping plate 5 and the first screen supporting plate 6 and an area corresponding to the upper needling mechanism 4 form a positive needling area; in above-mentioned barb device 3, the clearance between second net board 8 and the second holds in the palm the otter board 9 can supply the fibre web to pass through, and second net board 8 is shelled and is held in the palm the otter board 9 with the second and carry the otter board jointly to carry on spacingly, and the clearance between second net board 8 and the second holds in the palm the otter board 9 and constitutes the barb region with the region that down acupuncture mechanism 7 corresponds. During operation, the fiber web firstly enters the barb area, the lower half part of the fiber web is repeatedly needled by the lower needling mechanism 7 and then enters the positive needling area, the upper half part of the fiber web is repeatedly needled by the upper needling mechanism 4, and the needled fiber web is finally output from the barb area.

When the upper needling mechanism 4 and the lower needling mechanism 7 carry out needling, the transmission shaft assembly 42 is driven by the needling driving device 41 to rotate, the first eccentric wheel 441 of each lifting transmission mechanism 44 is driven by the straight shaft 421 to rotate, the corresponding push rod 444 is driven by the corresponding first rocker arm 442 to reciprocate along the corresponding first guide sleeve 443 to drive the needle assembly 43 to carry out lifting motion, so that the fiber web is repeatedly needled, and the fluffy fiber web is consolidated under the action of needling; meanwhile, the second eccentric wheel 451 of each balancing device 45 is driven by the straight shaft 421 to rotate, and the second eccentric wheel 451 drives the guide rod 454 and the balancing weight 455 to reciprocate along the second guide sleeve 452 via the second rocker arm 453; because the eccentric directions of the second eccentric wheel 451 and the first eccentric wheel 441 are opposite, and the total weight of each balancing weight 455 is equivalent to the weight of the needle assembly 43, the inertial force of the first eccentric wheel 441 of each lifting transmission mechanism 44 driving the push rod 444 and the needle assembly 43 to reciprocate along the first guide sleeve 443 by the first rocker arm 442 is offset by the inertial force of the second eccentric wheel 451 of each balancing device 45 driving the guide rod 454 and the balancing weight 455 to reciprocate along the second guide sleeve 452 by the second rocker arm 453, and by arranging each balancing device 45 and each lifting transmission mechanism 44 in sequence along the axial direction of the straight shaft 421, the stress at each position of the straight shaft 421 can be more uniform, so as to ensure that the transmission shaft assembly 42 can keep smooth running, effectively avoid violent vibration and sloshing during operation, ensure the quality and yield of acupuncture products, and reduces noise.

After the upper needling mechanism 4 stops working, the control circuit applies a certain resistance to the corresponding transmission shaft assembly 42 through the resistance mechanism 46, so that the rotating speed of the transmission shaft assembly is gradually reduced; until the detection means detects that the first eccentric 441 has reached its top dead center when the rotation speed of the driving shaft assembly 42 is slow, the detection means sends a signal to the control circuit, which stops the driving shaft assembly 42 immediately by means of the resistance mechanism 46, so that each first eccentric 441 stays at its top dead center, which ensures that each needle 433 of the needle assembly 43 is completely disengaged from the web. After the lower needling mechanism 7 stops working, the control circuit applies certain resistance to the corresponding transmission shaft assembly 42 through the resistance mechanism 46, so that the rotating speed of the transmission shaft assembly is gradually reduced; until the detection means detects that the first eccentric 441 has reached its lower dead point when the rotation speed of the driving shaft assembly 42 is slow, the detection means sends a signal to the control circuit, which stops the driving shaft assembly 42 immediately by means of the resistance mechanism 46, so that each first eccentric 441 stays at its lower dead point, which ensures that each needle 433 of the needle assembly 43 is completely detached from the web.

In addition, it should be noted that the names of the parts and the like of the embodiments described in the present specification may be different, and all the equivalent or simple changes made according to the structure, the features and the principle of the present invention are included in the protection scope of the present invention. Various modifications, additions and substitutions may be made by those skilled in the art without departing from the scope of the invention as defined in the accompanying claims.

Claims

1. A through-shaft type single-needle-plate ectopic opposite needling machine comprises a machine frame, a needling correcting device and an agnail device, wherein the needling correcting device and the agnail device are both arranged on the machine frame, and the agnail device is positioned in front of or behind the needling correcting device; the positive needling device comprises a needling mechanism, a first screen stripping plate and a first screen supporting plate, wherein the first screen stripping plate is positioned above the first screen supporting plate, and the needling mechanism is positioned above the first screen stripping plate; the barb device comprises a lower needling mechanism, a second screen stripping plate and a second screen supporting plate, wherein the second screen stripping plate is positioned below the second screen supporting plate, the lower needling mechanism is positioned below the second screen stripping plate, and a gap between the second screen stripping plate and the second screen supporting plate is over against a gap between the first screen stripping plate and the first screen supporting plate; go up acupuncture mechanism, acupuncture mechanism all includes acupuncture drive arrangement down, transmission shaft subassembly and felting needle subassembly, the transmission shaft subassembly is rotatable to be installed in the frame and is connected with acupuncture drive arrangement transmission, the transmission shaft subassembly is connected with the felting needle subassembly through a plurality of lifting drive mechanisms, lifting drive mechanism includes first eccentric wheel, first rocking arm, first uide bushing and push rod, first eccentric wheel fixed mounting is on the transmission shaft subassembly, the first end of first rocking arm is cup jointed on first eccentric wheel, first uide bushing fixed mounting moves towards about just in the frame, the push rod is in first uide bushing, the first end of push rod is held with the second of first rocking arm and is articulated, the second end of push rod is connected with the felting needle subassembly, its characterized in that: the transmission shaft assembly comprises a straight shaft with the axis in the left-right direction; the first eccentric wheel is fixedly arranged on the corresponding straight shaft; the upper needling mechanism and the lower needling mechanism respectively comprise a plurality of balancing devices, each balancing device is sequentially arranged along the corresponding straight shaft in the axial direction, each balancing device comprises a second eccentric wheel, a second guide sleeve, a second rocker arm, a guide rod and a balancing weight block, the second eccentric wheels are fixedly arranged on the corresponding straight shafts, the eccentric directions of the second eccentric wheels and the first eccentric wheels are opposite, the first ends of the second rocker arms are sleeved on the second eccentric wheels, the second guide sleeves are fixedly arranged on the machine frame and move up and down, the guide rods are positioned in the second guide sleeves, the first ends of the guide rods are hinged with the second ends of the second rocker arms, and the balancing weight blocks are arranged on the guide rods.

2. The through-shaft type single-needle-plate ectopic opposite needling machine is characterized in that: in the upper needling mechanism, the number of the lifting transmission mechanisms is more than or equal to 3, the number of the balancing devices is 1 less than that of the lifting transmission mechanisms, and the lifting transmission mechanisms and the balancing devices are axially and alternately arranged along the corresponding straight shafts; in the lower needling mechanism, the number of the lifting transmission mechanisms is more than or equal to 3, the number of the balancing devices is 1 less than that of the lifting transmission mechanisms, and the lifting transmission mechanisms and the balancing devices are alternately arranged along the axial direction of the corresponding straight shaft.

3. The through-shaft type single-needle-plate ectopic opposite needling machine is characterized in that: the second end of the guide rod is arranged in the second guide sleeve, and the balancing weight block is arranged on the middle part of the guide rod.

4. The through-shaft type single-needle-plate ectopic opposite needling machine according to claim 3 is characterized in that: the middle part of the guide rod is provided with a supporting circular truncated cone with a small upper part and a large lower part, the middle part of the balancing weight block is provided with a circular truncated cone-shaped mounting hole with a small upper part and a large lower part, the circular truncated cone-shaped mounting hole is matched with the supporting circular truncated cone, and the supporting circular truncated cone is positioned in the circular truncated cone-shaped mounting hole and clings to the inner wall of the circular truncated cone; the guide rod is sleeved with a locking ring, the locking ring is positioned at the lower side of the supporting circular truncated cone and is connected with the balancing weight block through a connecting piece, and the upper side surface of the locking ring is tightly attached to the bottom of the supporting circular truncated cone.

5. The through-shaft type single-needle-plate ectopic opposite needling machine is characterized in that: the transmission shaft assembly further comprises a left half shaft, a right half shaft, a left coupling flywheel and a right coupling flywheel, the left half shaft and the right half shaft can be rotatably mounted on the rack, the axes of the left half shaft and the right half shaft are coincident with the axis of the straight shaft, the right end of the left half shaft is fixedly connected with the left end of the straight shaft through the left coupling flywheel, and the left end of the right half shaft is fixedly connected with the right end of the straight shaft through the right coupling flywheel; the left half shaft or the right half shaft is in transmission connection with the needling driving device.

6. The through-shaft type single-needle-plate ectopic opposite needling machine according to any one of claims 1 to 5, characterized in that: two bearing seat groups are arranged on the rack and correspond to the two straight shafts one by one; each bearing seat group comprises a plurality of bearing seats which are sequentially arranged along the axial direction of the corresponding straight shaft, and each bearing seat is connected with the corresponding part on the corresponding straight shaft through a bearing.

7. The through-shaft type single-needle-plate ectopic opposite needling machine according to any one of claims 1 to 5, characterized in that: a plurality of dynamic balance wheels are fixedly mounted on the straight shaft, and the dynamic balance wheels are sequentially arranged along the axial direction of the straight shaft.

8. The through-shaft type single-needle-plate ectopic opposite needling machine according to claim 7 is characterized in that: the dynamic balance wheels are in the same number and correspond to the balance devices one by one, and the dynamic balance wheels are positioned on the left side or the right side of the second eccentric wheel in the corresponding balance devices.

9. The through-shaft type single-needle-plate ectopic opposite needling machine according to claim 7 is characterized in that: the dynamic balance wheel comprises a wheel body and a balancing weight, a mounting hole is formed in the center of the wheel body, and the wheel body is fixedly mounted on the straight shaft through the mounting hole; the wheel body is provided with a mounting groove, the mounting groove is positioned on one side of the mounting hole, and the balancing weight is mounted in the mounting groove.

10. The through-shaft type single-needle-plate ectopic opposite needling machine according to any one of claims 1 to 5, characterized in that: the upper needling mechanism and the lower needling mechanism further comprise a control circuit, a detection device for detecting whether the first eccentric wheel reaches a top dead center or a bottom dead center, and a resistance mechanism capable of applying resistance to the transmission shaft assembly, wherein the detection device is electrically connected with the corresponding input end of the control circuit, and the resistance mechanism is electrically connected with the corresponding output end of the control circuit.