CN208068424U - A kind of perforating device of non-woven fabrics - Google Patents

Abstract

The utility model discloses a kind of perforating devices of non-woven fabrics, non-woven fabrics between retractable volume machine is horizontal, horizontal cloth supporting block is fixedly installed above non-woven fabrics between retractable volume machine, the first and second optical receiver is fixed on the lower face of cloth supporting block vertically from right to left.Two rotation wheel drive crawler belt rotations immediately below non-woven fabrics, crawler belt rotating speed are identical as the movement speed of non-woven fabrics.Pushing motor is fixed on crawler belt with being evenly distributed, and the first and second optical transmitting set corresponding with the first and second optical receiver is fixed on pushing motor respectively.Round base is fixed on the push rod of pushing motor, and hollow perforating knife is fixed on round base.When pushing motor is located on the crawler belt of upper end, vertically upward, the first optical transmitting set on same pushing motor is located at the right side of the second optical transmitting set to the blade of hollow perforating knife.The technical program can be punched on mobile non-woven fabrics, improve perforating efficiency.

Description

A kind of perforating device of non-woven fabrics

Technical field

The utility model is related to non-woven fabric production equipment field more particularly to a kind of perforating devices of non-woven fabrics.

Background technology

Non-woven fabrics（English name：Non Woven Fabric or Nonwoven cloth）Also known as nonwoven fabric is by fixed To or random fiber and constitute.Because with cloth appearance and certain performances due tos be called cloth.

Non-woven fabrics have it is moisture-proof, ventilative, flexible, light, not combustion-supporting, be easy decompose, it is nontoxic it is nonirritant, rich in color, The features such as cheap, recyclable.Such as mostly use polypropylene（Pp materials）Pellet is raw material, through high-temperature fusion, spinneret, paving Guiding principle, hot pressing are batched continuous one-step and are produced.

Non-woven fabrics does not have latitude and longitude, cuts out and sews and is all very convenient, and light easy sizing, deep by manual fan Like.Because it is a kind of need not spin cotton and weave cloth and the fabric formed, only textile staple or long filament are determined To or random alignment, form fibre net structure, then reinforced using the methods of mechanical, hot sticky or chemical.It is not by one One yarns interwoven is knitted together, but fiber is directly bonded together by the method for physics, so, when When you take the viscous title in your clothes, it finds that, it is the end of a thread that can not taken out one by one.Non-woven cloth breaches traditional spinning Principle is knitted, and there is the features such as technological process is short, throughput rate is fast, and yield is high, at low cost, purposes is wide, raw material sources are more.

The relationship of non-woven fabrics and spinning building, spinning building and non-woven fabrics are subordinate relation.The life that there are many manufactures of non-woven fabrics Production. art, wherein spun-bond process be one such producing technology of non-woven fabrics (including spun-bond process, meltblown, Hot rolling, spun lacing method, Now most of on the market is all the non-woven fabrics produced with spun-bond process)

Non-woven fabrics has terylene, polypropylene fibre, polyamide fibre, spandex, acrylic fibers etc. according to ingredient；Different ingredients has completely different Non-woven fabrics style.And spinning building, it is commonly referred to as terylene spun-bonded, polypropylene spunbond；And the style of both cloth is very close, passes through High temperature test can just determine.

Non-woven fabrics is a kind of non-woven cloth, it is that fiber is directly passed through gas using high polymer slice, staple fiber or long filament Then spun lacing is passed through in stream or mechanical networking, needle thorn or hot rolling are reinforced, and finally passes through the non-woven cloth that final finishing is formed.Tool There is soft, ventilative and planar structure tencel product, advantage is not generate Soft flocks, tough, durable, as soft as silk, It is one kind of reinforcing material, and the feeling of also cotton is compared with cotton goods, the sack of non-woven fabrics is easily formed, Er Qiezao Valence is cheap.

The advantages of non-woven fabrics：1. light：Using acrylic resin as main production raw material, proportion only 0.9, only cotton 3/5ths, have bulkiness, good hand touch.2. soft：(2-3D) is formed by fine fibre and dubs the molding of shape hot melting cohesion.Finished product is soft Spend moderate, tool comfort.3. water repellent is breathed freely：Polypropylene chip does not absorb water, and moisture content zero, finished product water-repellancy is good, by 100% fiber Composition tool porosity, gas permeability is good, easily keeps that cloth cover is dry and comfortable, uncomplicated laundering.4. nontoxic, nonirritant:Product, which uses, meets FDA Food grade materials produce, and are free of other chemical compositions, and performance is stablized, and nontoxic, free from extraneous odour does not stimulate skin.5. antibacterial, anti-chemistry Medicament：Polypropylene category inactivity substance, does not damage by worms, and the erosion there are liquid Endophytic bacteria and insects can be isolated；Antibacterial, alkali are rotten Erosion, finished product do not influence intensity because of erosion.6. antibiotic property.Product tool pull out it is aqueous, it is not mouldy, and can be isolated that there are liquid Endophytic bacterias And the erosion of insects, not mould moth.7. physical property is good.It is directly paved into net hot adhesion by polypropylene spinning to form, product strength is more general Short fibre product is preferred, and intensity is non-directional, and vertical transverse strength is close.8. in terms of environmental protection, the original of the most of non-woven fabrics used Material is polypropylene, and the raw material of polybag are polyethylene, although two kinds of substance names are similar, the phase in chemical constitution Difference is very remote.The chemical molecular structure of polyethylene has great stability, it is extremely difficult to degrade, so polybag needs 300 years Decomposable asymmetric choice net finishes；And polyacrylic chemical constitution is insecure, and strand is easy for be broken, so as to effectively degrade, And enter next step enviromental cycle in nontoxic form, a non-woven fabric shopping bag can be decomposed thoroughly in 90 days. And reusable 10 times of non-woven fabric shopping bag or more, also there was only the 10% of polybag after discarding to the dustiness of environment.

The production process of nonwoven production, apparatus and process flow：Material sucking machine → screw rod → filter → metering pump → babinet → stretcher → lapper → hot-rolling mill → winder → cutting machine.Product process flow:Raw material（Dispensing）→ heating → extruding → filtering → babinet → stretching → networking hot rolling →, which is batched, cuts → weighing → → packaging → is examined to be put in storage.

201621419875.6 utility model patent technical solution of the patent No. is related to a kind of perforating device for non-woven fabrics. Unreeling structure and rolling-up mechanism including organic frame, set on rack both ends, the rack are equipped with punching platform, and described beats Hole platform transverse ends distinguish the vertical mounting plate that is equipped with, and are fixedly connected by connecting plate at the top of mounting plate, connecting plate is equipped with At least two groups perforating mechanism, punches several through-holes set on platform, and punching mesa base is equipped with the garbage collection be connected with through-hole Case, the perforating mechanism include the cylinder being fixedly arranged on connecting plate, the piston shaft on cylinder, are removably set to and live Fill in the perforating head mounting plate on axis and the perforating head on perforating head mounting plate, the perforating head mounting plate and perforating head it Between be equipped with hold-down mechanism.Above-mentioned art solutions the problem is that：In punching, non-woven fabrics must be static, thus drops The low production efficiency of non-woven fabrics.

Utility model content

The technical issues of the utility model solves the problem of is encountered for the technical solution of background technology, to above-mentioned skill Art scheme improve and has proposed the utility model, to solve the technical issues of above-mentioned technical proposal is encountered.

The utility model to solve above-mentioned technical problem the technical solution adopted is that：

A kind of perforating device of non-woven fabrics, including unreeling machine, winder, rotating wheel, crawler belt, pushing motor, punching component, First optical transmitting set, the second optical transmitting set, the first optical receiver, the second optical receiver, cloth supporting block, controller；The winding Machine winding is located at the non-woven fabrics on the unreeling machine on the right side of the winder, the nothing between the winder, unreeling machine Woven fabric is horizontal, and horizontal cloth branch is fixedly installed above the non-woven fabrics between the winder, unreeling machine The lower face of bracer, the cloth supporting block abuts the non-woven fabrics, and first optical receiver, the second optical receiver are from right to left It is fixed on vertically on the lower face of the cloth supporting block；Immediately below the non-woven fabrics between the winder, unreeling machine Two rotation wheel drives described in crawler belt rotate counterclockwise, the crawler belt between the rotating wheel is horizontal, described Crawler belt rotating speed is identical as the movement speed of the non-woven fabrics；The pushing motor is fixed on the outer end of the crawler belt with being evenly distributed On face, first optical transmitting set corresponding with first optical receiver, the second optical receiver, the second optical transmitting set respectively It is fixed on the pushing motor；The punching component includes hollow perforating knife, round base, and the round base is fixed on institute It states on the push rod top of pushing motor, the hollow perforating knife is fixed on the round base, under the cloth supporting block A guiding groove corresponding with the hollow perforating knife is opened up on end face；When the pushing motor is located on the crawler belt of upper end, institute State the blade of hollow perforating knife vertically upward, first optical transmitting set on the same pushing motor is located at second light The right side of transmitter；The unreeling machine, winder, the first optical transmitting set, the first optical receiver, the second optical transmitting set, the second light Receiver, rotating wheel, pushing motor are electrically connected to the controller.

In a kind of perforating device of non-woven fabrics, the punching component further includes positioned at the cylindric of the hollow perforating knife The circular top plate of appearance paper intracavitary, iron block, spring, electromagnet；The lateral surface diameter of the circular top plate holds the interior of paper chamber with described Side wall diameter matches, and the electromagnet is fixed at the bottom face center for holding paper chamber, and the iron block is fixed on the circle At the bottom face center of shape top plate, the both ends of the spring is separately fixed at the bottom face for holding paper chamber and the circular top plate On bottom face；When electromagnet is not powered on, the spring makes the circular top plate be located at the open end for holding paper chamber；At two One band supporting block of fixed setting, the upper surface with supporting block are tight between crawler belt described in upper and lower end between the rotating wheel By the inner face of the upper end crawler belt, the lower face with supporting block is fixedly installed third light and connects vertically successively from left to right Receive device, the 4th optical receiver, be fixedly installed on the pushing motor respectively with the third optical receiver, the 4th optical receiver phase The corresponding third optical transmitting set, the 4th optical transmitting set；When the pushing motor is located on the crawler belt of lower end, the third light Vertically upward, the third optical transmitting set is located on the left of the 4th optical transmitting set for transmitter, the 4th optical transmitting set；The electromagnetism Iron, third optical transmitting set, third optical receiver, the 4th optical transmitting set, the 4th optical receiver are electrically connected to the controller.

In a kind of perforating device of non-woven fabrics, the push rod, round base, circular top plate are by non-magnetic FRP glass Glass steel is made, and the hollow perforating knife is made of non-magnetic aluminium alloy or copper metal material, and the spring is by non-magnetic phosphorus Bronze or beryllium-bronze material are made.

The utility model has the beneficial effects that：Since the movement speed of non-woven fabrics is as the movement speed of crawler belt, then beat Aperture member just punches on opposing stationary non-woven fabrics, and which improves the efficiency of punching, to make the production of non-woven fabrics imitate Rate is guaranteed.

Description of the drawings

Fig. 1 is the structural schematic diagram of the utility model；

Fig. 2 is the punching component that push rod does not extend out and electromagnet is powered；

Fig. 3 is the punching component that push rod has stretched out and electromagnet is powered；

Fig. 4 is the punching component that push rod has stretched out and electromagnet is not powered on；

Fig. 5 be cloth supporting block, the first and second optical receiver structural schematic diagram；

Fig. 6 is the structural schematic diagram of pushing motor, push rod, punching component, the first, second and third optical transmitting set；

Fig. 7 is the structural schematic diagram with supporting block, third and fourth optical receiver.

Reference sign in figure：1, unreeling machine；2, non-woven fabrics；3, punching component；4, the first optical transmitting set；5, push rod； 6, the second optical transmitting set；7, pushing motor；8, third optical transmitting set；9, rotating wheel；10, the 4th optical receiver；11, crawler belt；12, 4th optical transmitting set；13, band supporting block；14, third optical receiver；15, the first optical receiver；16, the second optical receiver；17, Cloth supporting block；18, winder；19, guiding groove；20, controller；31, hollow perforating knife；32, hold paper chamber；33, circular top plate； 34, iron block；35, spring；36, electromagnet；37, round base.

Specific implementation mode

The utility model is described in further detail with reference to the accompanying drawings and examples：

A kind of perforating device of non-woven fabrics as shown in Fig. 1 to 7, including unreeling machine 1, winder 18, rotating wheel 9, crawler belt 11, pushing motor 7, punching component 3, the first optical transmitting set 4, the second optical transmitting set 6, the first optical receiver 15, the second light-receiving Device 16, cloth supporting block 17, controller 20.

The winding of winder 18 is located at the non-woven fabrics 2 on the unreeling machine 1 on 18 right side of winder, between winder 18, unreeling machine 1 Non-woven fabrics 2 be horizontal, the top of the non-woven fabrics 2 between winder 18, unreeling machine 1 is fixedly installed horizontal cloth branch The lower face of bracer 17, cloth supporting block 17 abuts non-woven fabrics 2, and the first optical receiver 15, the second optical receiver 16 erect from right to left Directly it is fixed on the lower face of cloth supporting block 17.

Two rotating wheels 9 driving crawler belt 11 immediately below non-woven fabrics 2 between winder 18, unreeling machine 1 is counterclockwise It rotates, the crawler belt 11 between rotating wheel 9 is horizontal, and 11 rotating speed of crawler belt is identical as the movement speed of non-woven fabrics 2, i.e. upper end Crawler belt 11 is static with respect to non-woven fabrics 2 in the horizontal direction, and such perforating device can be beaten on mobile non-woven fabrics 2 Hole, effect is as the punching on static non-woven fabrics 2.

Pushing motor 7 is fixed on the outer end face of crawler belt 11 with being evenly distributed, and in the present embodiment, pushing motor 7 can be just Reversion, so that push rod 5 steadily extends and retracts.Respectively with the first optical receiver 15, the second optical receiver 16 corresponding first Optical transmitting set 4, the second optical transmitting set 6 are fixed on pushing motor 7.That is the first optical receiver 15 receives the first optical transmitting set 4 hair The signal sent, the second optical receiver 16 receive the signal that the second optical transmitting set 6 is sent.

Punching component 3 includes hollow perforating knife 31, round base 37, and round base 37 is fixed on the push rod 5 of pushing motor 7 On top, hollow perforating knife 31 is fixed on round base 37, and one and hollow punching are opened up on the lower face of cloth supporting block 17 31 corresponding guiding groove 19 of knife, i.e., when punching component 3 punches non-woven fabrics 2, the blade end of hollow perforating knife 31 can be with It is moved upward in guiding groove 19.In hollow perforating knife 31 when being punched on non-woven fabrics 2, cloth supporting block 17 can give non-woven fabrics 2 With support, while guiding groove 19 makes hollow perforating knife 31 be easier to punch on non-woven fabrics 2.

When pushing motor 7 is located on upper end crawler belt 11, the blade of hollow perforating knife 31 vertically upward, same pushing motor The first optical transmitting set 4 on 7 is located at the right side of the second optical transmitting set 6, receives the first light hair in the first optical receiver 15 in this way When the optical signal that emitter 4 is sent, crawler belt 11 is advanced a distance with hollow perforating knife 31 to the left, make hollow perforating knife 31 to When upper mobile, the bottom face of cloth supporting block 17 will not be touched, but is directly entered in guiding groove 19 after having beaten hole, it is hollow to protect Perforating knife 31；After having beaten hole, the blade of hollow perforating knife 31 is also in guiding groove 19, since the second optical transmitting set 6 is first The left side of optical transmitting set 4, so that it may so that the second optical receiver 16 receives the optical signal of the second optical transmitting set 6 transmission earlier, To make the blade of hollow perforating knife 31 be come out from guiding groove 19 earlier, to avoid hollow perforating knife 31 is damaged.

Unreeling machine 1, winder 18, the first optical transmitting set 4, the first optical receiver 15, the second optical transmitting set 6, the second light connect It receives device 16, rotating wheel 9, pushing motor 7 and is electrically connected to controller 20, that is to say, that unreeling machine 1 is controlled by controller 20, is received Volume machine 18, the first optical receiver 15, the second optical transmitting set 6, the second optical receiver 16, rotating wheel 9, pushes first optical transmitting set 4 The operation of motor 7.That is the operation of the control of controller 20 unreeling machine 1, winder 18, rotating wheel 9 makes the shifting of non-woven fabrics 2, crawler belt 11 Dynamic speed is identical；First optical receiver 15 receives the optical signal of the first optical transmitting set 4 transmission, and the first optical receiver 15 sends letter Number give controller 20, controller 20 control corresponding pushing motor 7 rotation, so that hollow perforating knife 31 is moved up to non-woven fabrics 2 Punching；When the second optical receiver 16 receives the optical signal of the second optical transmitting set 6 transmission, the second optical receiver 16 sends signal To controller 20, controller 20 controls pushing motor 7 and inverts, and hollow perforating knife 31 drops to the original position not punched.

In a kind of perforating device of non-woven fabrics, preferably：Punching component 3 further includes the circle positioned at hollow perforating knife 31 Circular top plate 33, iron block 34 in column appearance paper chamber 32, spring 35, electromagnet 36.

The lateral surface diameter of circular top plate 33 matches with the inner sidewall diameter for holding paper chamber 32, so that circular top plate 33 is being held It is steadily moved in paper chamber 32.Electromagnet 36 is fixed at the bottom face center for holding paper chamber 32, and iron block 34 is fixed on circular top plate 33 Bottom face center at, 35 both ends of spring, which are separately fixed at, to hold on the bottom face of paper chamber 32 and the bottom face of circular top plate 33.? When electromagnet 36 is not powered on, spring 35 makes circular top plate 33 be located at the open end for holding paper chamber 32.That is, hollow perforating knife 31 When being punched on non-woven fabrics 2, what electromagnet 36 was switched on, electromagnet 36 attracts iron block 34, circular top plate 33 to overcome spring at this time 35 elastic force are advanced towards the bottom face for holding paper chamber 32, so that circular top plate 33 is located at and are held in paper chamber 32, and holding paper chamber 32 in this way can hold 2 disk of non-woven fabrics that hollow perforating knife 31 of receiving is cut out；In 36 power down of electromagnet, spring 35 makes circular top plate 33,34 court of iron block Hold the open end movement of paper chamber 32, thus being pushed out in the calm paper chamber of 2 disk of non-woven fabrics that hollow perforating knife 31 is cut out 32 Hold outside paper chamber 32.

Fixed setting one is with supporting block 13 between upper and lower end crawler belt 11 between two rotating wheels 9, with supporting block 13 Upper surface abuts the inner face of upper end crawler belt 11, in this way, can support upper end crawler belt 11 that upper end crawler belt 11 is made to keep horizontal position, To ensure to punch effect.Lower face with supporting block 13 is fixedly installed third optical receiver 14, vertically successively from left to right Four optical receivers 10, be fixedly installed on pushing motor 7 respectively with third optical receiver 14, the 4th optical receiver 10 corresponding Three optical transmitting sets 8, the 4th optical transmitting set 12.The optical signal that i.e. the reception third of third optical receiver 14 optical transmitting set 8 is sent, the 4th Optical receiver 10 receives the optical signal that the 4th optical transmitting set 12 is sent.

When pushing motor 7 is located on lower end crawler belt 11, third optical transmitting set 8, the 4th optical transmitting set 12 are vertical upward, the Three optical transmitting sets 8 are located at 12 left side of the 4th optical transmitting set.In this way, being sent out when third optical receiver 14 receives third optical transmitting set 8 When the optical signal sent, crawler belt 11 is advanced to the right a distance with hollow perforating knife 31, and the non-woven fabrics 2 held in paper chamber 32 is sliced Since the effect of gravity has been moved towards the open end for holding paper chamber 32, circular top plate 33 can be thus improved hollow perforating knife It is pushed out to the success rate held outside paper chamber 32 in the calm paper chamber of 31 2 disks of non-woven fabrics that cut out 32；Due to the 4th optical transmitting set 12 It can be more when the 4th optical receiver 10 receives the optical signal of the 4th optical transmitting set 12 transmission in 8 right side of third optical transmitting set Electromagnet 36 is set to be powered soon, to make electromagnet 36 that iron block 34, circular top plate 33 be attracted to overcome 35 elastic force of spring towards appearance paper chamber 32 bottom face is advanced, and so that circular top plate 33 is located at and is held in paper chamber 32, and so that appearance paper chamber 32 is entered can be with Accommodate the state for 2 disk of non-woven fabrics that hollow perforating knife 31 is cut out.

Electromagnet 36, third optical transmitting set 8, third optical receiver 14, the 4th optical transmitting set 12, the 4th optical receiver 10 are It is electrically connected to controller 20, i.e. controller 20 controls electromagnet 36, third optical transmitting set 8, third optical receiver 14, the 4th light hair The operation of emitter 12, the 4th optical receiver 10.I.e. when containing 2 disk of non-woven fabrics in holding paper chamber 32, hollow perforating knife 31 enters Lower end crawler belt 11, third optical receiver 14 receive the optical signal of the transmission of third optical transmitting set 8, and third optical receiver 14 sends letter Number controller 20, controller 20 is given to control electromagnet 36 power down, spring 35 makes circular top plate 33, iron block 34 be opened towards paper chamber 32 is held The movement of mouthful end is held being pushed out in the calm paper chamber of 2 disk of non-woven fabrics that hollow perforating knife 31 is cut out 32 outside paper chamber 32.4th light connects The optical signal that device 10 receives the transmission of the 4th optical transmitting set 12 is received, the 4th optical receiver 10 sends a signal to controller 20, controls Device 20 controls electromagnet 36 and is powered, and electromagnet 36 attracts iron block 34, circular top plate 33 to overcome 35 elastic force of spring towards appearance paper chamber 32 Bottom face is advanced, and so that circular top plate 33 is located at and is held in paper chamber 32, and appearance paper chamber 32 can accommodate hollow perforating knife 31 and cut out in this way 2 disk of non-woven fabrics, subsequent hollow perforating knife 31 enters 11 position of upper end crawler belt and punched to non-woven fabrics 2.

In a kind of perforating device of non-woven fabrics, preferably：Push rod 5, round base 37, circular top plate 33 be not by leading The FRP fiberglass of magnetic is made, and hollow perforating knife 31 is made of non-magnetic aluminium alloy or copper metal material, and spring 35 is by non-magnetic Phosphor bronze or beryllium-bronze material be made.The adverse effect for attracting electromagnet 36 iron block 34 can be lowered in this way.

The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model Protection domain within.

Claims (3)

1. a kind of perforating device of non-woven fabrics, which is characterized in that including unreeling machine, winder, rotating wheel, crawler belt, pushing motor, Punching component, the first optical transmitting set, the second optical transmitting set, the first optical receiver, the second optical receiver, cloth supporting block, controller； The winder winding is located at the non-woven fabrics on the unreeling machine on the right side of the winder, between the winder, unreeling machine The non-woven fabrics be horizontal, be fixedly installed water above the non-woven fabrics between the winder, unreeling machine The lower face of flat cloth supporting block, the cloth supporting block abuts the non-woven fabrics, first optical receiver, the second optical receiver It is fixed on vertically from right to left on the lower face of the cloth supporting block；The nonwoven between the winder, unreeling machine Crawler belt rotates counterclockwise described in two rotation wheel drives immediately below cloth, and the crawler belt between the rotating wheel is in horizontal position It sets, the crawler belt rotating speed is identical as the movement speed of the non-woven fabrics；The pushing motor is fixed on the shoe with being evenly distributed On the outer end face of band, first optical transmitting set corresponding with first optical receiver, the second optical receiver, second respectively Optical transmitting set is fixed on the pushing motor；The punching component includes hollow perforating knife, round base, the round base It is fixed on the push rod top of the pushing motor, the hollow perforating knife is fixed on the round base, the cloth support A guiding groove corresponding with the hollow perforating knife is opened up on the lower face of block；It is located at upper end crawler belt in the pushing motor When upper, vertically upward, first optical transmitting set on the same pushing motor is located at institute to the blade of the hollow perforating knife State the right side of the second optical transmitting set；The unreeling machine, winder, the first optical transmitting set, the first optical receiver, the second light emitting Device, the second optical receiver, rotating wheel, pushing motor are electrically connected to the controller.

2. a kind of perforating device of non-woven fabrics according to claim 1, which is characterized in that the punching component further includes position In the circular top plate of the cylindric appearance paper intracavitary of the hollow perforating knife, iron block, spring, electromagnet；Outside the circular top plate Lateral diameters match with the inner sidewall diameter for holding paper chamber, and the electromagnet is fixed on the bottom face center for holding paper chamber Place, the iron block are fixed at the bottom face center of the circular top plate, and the both ends of the spring is separately fixed at the appearance paper chamber Bottom face and the circular top plate bottom face on；When electromagnet is not powered on, the spring makes the circular top plate be located at The open end for holding paper chamber；The one band support of fixed setting between crawler belt described in upper and lower end between two rotating wheels Block, the upper surface with supporting block abut the inner face of the upper end crawler belt, and the lower face with supporting block is from left to right Be fixedly installed third optical receiver, the 4th optical receiver vertically successively, be fixedly installed on the pushing motor respectively with it is described The corresponding third optical transmitting set of third optical receiver, the 4th optical receiver, the 4th optical transmitting set；In the pushing motor When on the crawler belt of lower end, vertically upward, the third optical transmitting set is located at institute for the third optical transmitting set, the 4th optical transmitting set It states on the left of the 4th optical transmitting set；The electromagnet, third optical transmitting set, third optical receiver, the 4th optical transmitting set, the 4th light connect It receives device and is electrically connected to the controller.

3. a kind of perforating device of non-woven fabrics according to claim 2, which is characterized in that the push rod, round base, circle Shape top plate is made of non-magnetic FRP fiberglass, and the hollow perforating knife is by non-magnetic aluminium alloy or copper metal material system At the spring is made of non-magnetic phosphor bronze or beryllium-bronze material.