CN104960015A - Fiber cutting-off equipment - Google Patents
Fiber cutting-off equipment Download PDFInfo
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- CN104960015A CN104960015A CN201510369368.XA CN201510369368A CN104960015A CN 104960015 A CN104960015 A CN 104960015A CN 201510369368 A CN201510369368 A CN 201510369368A CN 104960015 A CN104960015 A CN 104960015A
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Abstract
The invention provides fiber cutting-off equipment capable of overcoming or reducing the hanging of short fibers after being machined on equipment. The fiber cutting-off equipment sequentially comprises a fiber conveying device, a static removing device, a tensioning device and a cutting-off device in the conveying direction of the fibers, and the fiber cutting-off equipment is further provided with a power device; the fiber conveying device is used for conveying long fibers; the static removing device is used for removing static charges carried by the fibers; the tensioning device is used for tensioning the long fibers on the route from the tensioning device to the cutting-off device; the cutting-off device comprises a cutter roller and an elastic roller which are oppositely arranged, the cutter roller is provided with a cutter roller cutting edge, the roller surface of the elastic roller is an elastic face, a gap allowing the fibers to pass through is formed between the cutter roller and the elastic roller, and the long fibers are compressed by the cutter roller and the elastic roller which rotate after entering the gap between the cutter roller and the elastic roller and cut into the short fibers by the cutter roller cutting edge arranged on the cutter roller; the power device is in transmission connection with the cutting-off device and drives the cutter roller or the elastic roller to rotate.
Description
Technical field
The present invention relates to material processing field, particularly relate to a kind of cut-out equipment of fibrous material.
Background technology
Fibrous material is one of common material feedstock, such as in the composite, often needs to add in the composite fibrous material to reach or the performance of reinforced composite.
Normally exist with the long fibre form of length as raw-material fiber, such as fibre bundle, or be produced in modes such as fine rules, and process, transport, store.
When using as material feedstock, usually long fibre must be cut to short fiber and use.Such as: LFT (Long Fiber-reinforced Thermoplastics), i.e. long fiber reinforcement thermoplastic, so-called long fibre strengthens fiber used in thermoplastic with general fibre to compare.Under normal circumstances, the fibre length in fiber-reinforced thermoplastic is for being less than 1 millimeter, and in LFT, the length of fiber is generally greater than 2 millimeters, the fibre length in LFT can be remained on more than 5 millimeters even.
LFT-D-ILC is called long fiber reinforcement thermoplastic direct-on-line compounding process technology (LongFiber-reinforced Thermoplastics-Direct-processing-In LineCompounding).LFT application is in the car in the trend increased rapidly, and except attraction economically, their main advantage is the flexibility that material can be compounding wherein.The fiber content of continuous variable, dissimilar fiber, add engineering plastics, opens potential application.
This direct-on-line fiber compound system is integrated in moulding process, and common is adopt second order screw extruder, namely completes extruding-out process by two screw extruder synthetic operations.
Thermoplastic plastic particle material or powder and other auxiliary agents first add from the hopper of the first rank screw extruder, plastified by screw rod, molten polymer after plasticizing is extruded from the extrusion neck ring mold of the first rank screw extruder, enters the charging aperture of second-order screw extruder.
Fiber is entering before second-order Screw Extrusion machine inlet capable carries out mixture, usually need heat fiber, generally the continuous fiber shift fork of twisting need be sprawled and come, the continuous several roads hot-rolling through firing equipment heats up, and is then involved in the charging aperture of second-order screw extruder.
The moulding compound extruded through the shearing of second-order extruder, mixture is transported in compacting (or injection) former, and equipment completes the shaping work of LFT-D-ECM or LFT-D-IM technique thus.
Wherein a kind of mode of glass supply adopts the supply of glass cutting machine cutting on line.
Realizing in process of the present invention, inventor finds that in prior art, there are the following problems: the short fiber after equipment cuts off often adheres on equipment and produces bridging phenomenon in course of conveying.
Summary of the invention
For this reason, need to provide a kind of fibre cutting equipment that can overcome or reduce the short fiber bridging on equipment after processing.
For achieving the above object, inventor provide a kind of fibre cutting equipment, for long fibre is cut to short fiber, described fibre cutting equipment comprises fiber conveying device successively along fiber conveying direction, Destaticizing device, take-up device and shearing device, described fibre cutting equipment is also provided with power set;
Described fiber conveying device is for carrying long fibre;
Described Destaticizing device is for removing the electrostatic charge that fiber carries;
Described take-up device is for straining take-up device to the long fibre on shearing device path;
Described shearing device comprises the rotor and resilient roller that are oppositely arranged, described rotor is provided with rotor cutting edge, the roller surface of described resilient roller is elastic surface, have between rotor and resilient roller and hold the gap passed through of fiber, compressed by the rotor that rotates and resilient roller and be cut to short fiber by the rotor cutting edge that rotor is arranged after long fibre enters the gap between rotor and resilient roller;
Described power set and shearing device are in transmission connection, and drive rotor or resilient roller to rotate.
Optionally, described take-up device is pressure roller, and described pressure roller and resilient roller are oppositely arranged, and has and compress long fibre and hold the gap that long fibre passes through between pressure roller and resilient roller.
Optionally, described Destaticizing device comprises and destatics roller, described in destatic roller and pressure roller is oppositely arranged, destatic to have between roller and pressure roller and compress long fibre and hold the gap that long fibre passes through;
The described roller surface that destatics is provided with conducting surface, destatic roller conducting surface ground connection or with destatic Electrode connection, described in destatic the polarity of electrode contrary with the polarity of the electrostatic charge entrained by long fibre.
Optionally, described Destaticizing device comprises humidifying chamber and humidifier, described humidifying chamber is provided with fiber entry and fiber outlet, the fiber entry of humidifying chamber is used for entering for long fibre, the fiber outlet of humidifying chamber is used for exporting for long fibre, humidifying chamber is also provided with steam inlet, described steam inlet and humidifier conducting.
Optionally, described take-up device is provided with heater, described heater is for heating the position that take-up device contacts with long fibre.
Optionally, described take-up device comprises deflector roll, and described guide roller surface is used for contacting with long fibre, and deflector roll and power set are in transmission connection, and power set drive deflector roll to rotate, and when deflector roll rotates, the guide roller surface direction of motion is contrary with the long stapled direction of motion.
Optionally, described take-up device comprises nip rolls, and described nip rolls comprises the first nip rolls and the second nip rolls that are oppositely arranged, has and compress long fibre and hold the gap that long fibre passes through between the first nip rolls and the second nip rolls.
Optionally, described rotor cutting edge is conductor, rotor cutting edge ground connection or with destatic Electrode connection, described in destatic the polarity of electrode contrary with the polarity of the electrostatic charge entrained by long fibre.
Optionally, described resilient roll surface is provided with conducting surface, the conducting surface ground connection of resilient roller or with destatic Electrode connection, described in destatic the polarity of electrode contrary with the polarity of the electrostatic charge entrained by long fibre.
Optionally, the contact surface that described take-up device contacts with long fibre is conducting surface, the conducting surface ground connection of take-up device or with destatic Electrode connection, described in destatic the polarity of electrode contrary with the polarity of the electrostatic charge entrained by long fibre.
Optionally, the contact surface that described conveyer contacts with long fibre is conducting surface, the conducting surface ground connection of conveyer or with destatic Electrode connection, described in destatic the polarity of electrode contrary with the polarity of the electrostatic charge entrained by long fibre.
Optionally, described fiber conveying device comprises the above metal bar of two couple of be arrangeding in parallel, and often pair of metal bar is oppositely arranged, and has the transmission gap holding long fibre and pass through between metal bar.
Inventor additionally provides another fibre cutting equipment, for long fibre is cut to short fiber, described fibre cutting equipment comprises fiber conveying device successively along fiber conveying direction, take-up device and shearing device, and described fibre cutting equipment is also provided with power set;
Described fiber conveying device is for carrying long fibre;
Described take-up device is for straining take-up device to the long fibre on shearing device path;
Described shearing device comprises the rotor and resilient roller that are oppositely arranged, described rotor is provided with rotor cutting edge, the roller surface of described resilient roller is elastic surface, have between rotor and resilient roller and hold the gap passed through of fiber, compressed by the rotor that rotates and resilient roller and be cut to short fiber by the rotor cutting edge that rotor is arranged after long fibre enters the gap between rotor and resilient roller;
Described resilient roll surface is provided with conducting surface, the conducting surface ground connection of resilient roller or with destatic Electrode connection;
Described take-up device is provided with conducting surface, the conducting surface ground connection of take-up device or with destatic Electrode connection, or described rotor cutting edge is conductor, rotor cutting edge ground connection or with destatic Electrode connection;
The described polarity destaticing electrode is contrary with the polarity of the electrostatic charge entrained by long fibre;
Described power set and shearing device are in transmission connection, and drive rotor or resilient roller to rotate.
Optionally, described take-up device comprises pressure roller, and described pressure roller and resilient roller are oppositely arranged, and has and compress long fibre and hold the gap that long fibre passes through between pressure roller and resilient roller.
Optionally, described fibre cutting equipment is also provided with Destaticizing device, and described Destaticizing device is arranged on the long fibre motion path between fiber conveying device and take-up device;
Described Destaticizing device comprises humidifying chamber and humidifier, described humidifying chamber is provided with fiber entry and fiber outlet, the fiber entry of humidifying chamber is used for entering for long fibre, the fiber outlet of humidifying chamber is used for exporting for long fibre, humidifying chamber is also provided with steam inlet, described steam inlet and humidifier conducting.
Optionally, described take-up device is provided with heater, described heater is for heating the position that take-up device contacts with long fibre.
Because inventor finds, short fiber after why processing easily produces bridging phenomenon after severance, system because, because the reasons such as friction create electrostatic in long fibre transmission or motion process, the long fibre of static electrification lotus defines the short fiber of static electrification lotus after cutting off, the electrostatic interaction of the electrostatic charge of short fiber entrained by it, is easily adsorbed on the equipment such as hopper and forms bridging phenomenon.Be different from prior art, technique scheme, by arranging Destaticizing device on fiber movement path, removes the electrostatic charge that fiber carries, to eliminate the phenomenons such as follow-up issuable fiber bridging by Destaticizing device.Or by arranging conducting surface at the rotor of shearing device and resilient roll surface, and by conducting surface ground connection or with destatic Electrode connection, to eliminate electrostatic in the process of cutting, avoid the phenomenons such as follow-up issuable fiber bridging.
Accompanying drawing explanation
Fig. 1 is the schematic diagram one of fibre cutting equipment described in detailed description of the invention;
Fig. 2 is the schematic diagram two of fibre cutting equipment described in detailed description of the invention;
Fig. 3 is the schematic diagram three of fibre cutting equipment described in detailed description of the invention;
Fig. 4 is the schematic diagram four of fibre cutting equipment described in detailed description of the invention;
Fig. 5 is the schematic diagram five of fibre cutting equipment described in detailed description of the invention.
Description of reference numerals:
1, long fibre;
2, fiber conveying device;
3, pressue device;
4, resilient roller;
5, rotor;
6, pressure roller;
7, pressue device;
8, steam raising plant;
9, metal bar;
10, humidifying chamber;
11, roller is destaticed;
12, pressure roller;
13, deflector roll;
14, the first nip rolls;
15, the second nip rolls.
Detailed description of the invention
By describe in detail technical scheme technology contents, structural feature, realized object and effect, coordinate accompanying drawing to be explained in detail below in conjunction with specific embodiment.
Refer to Fig. 1 to Fig. 5, present embodiments provide a kind of fibre cutting equipment, for long fibre 1 is cut to short fiber, the fiber cut can be used as the raw material of composite, and the fiber of cutting can be glass fibre etc.The short fiber formed after cutting off can directly enter in the next process of composite processing production.In some technological documents, fibre cutting equipment is also called fibre cutting machine, fibre cutting machine or fiber cutting equipment.
Fibre cutting equipment comprises fiber conveying device 2 successively along fiber conveying direction, Destaticizing device, take-up device and shearing device, and described fibre cutting equipment is also provided with power set;
Described fiber conveying device is for carrying long fibre;
Described Destaticizing device is for removing the electrostatic charge that fiber carries;
Described take-up device is for straining take-up device to the long fibre on shearing device path;
Described shearing device comprises the rotor 5 and resilient roller 4 that are oppositely arranged, described rotor 5 is provided with rotor cutting edge, the roller surface of described resilient roller 4 is elastic surface, there is between rotor and 5 resilient roller 4 gap holding fiber and pass through, compressed by the rotor 5 rotated with resilient roller 4 and be cut to short fiber by the rotor cutting edge that rotor is arranged after long fibre 1 enters the gap between rotor 5 and resilient roller 4;
Described power set and shearing device are in transmission connection, and drive rotor or resilient roller to rotate.That is in certain embodiments, rotor 5 is drive roll, and resilient roller 4 is driven voller, and rotor 5 drives resilient roller 4 to rotate, and resilient roller 4 is drive roll in certain embodiments, and rotor 5 is driven voller, and resilient roller 4 drives rotor 5 to rotate.Also have in some embodiments, rotor 5 and resilient roller 4 are all drive rolls.
Long fibre to be cut is by fiber conveying device 2, transmit, rotor 5 in shearing device and resilient roller 4 compress fiber therebetween, by the rotation of rotor 5 with resilient roller 4, with rotor, frictional force between resilient roller and long fibre, traction long fibre 1 moves, when long fibre 1 moves to Destaticizing device place, electrostatic charge entrained on fiber is removed by Destaticizing device, then through take-up device, due to the effect of take-up device, long fibre between take-up device to shearing device is tightened up, make the cut-out of shearing device respond well, and make the staple length that cuts out even.
In various embodiments, to the compression effect of fiber between rotor and resilient roller, or to the compression effect of fiber between pressure roller and resilient roller, or the compression effect to fiber between two folder rods, structurally there is multiple implementation.
Such as Fig. 1, in embodiment illustrated in fig. 5, can use pressue device 3 to be connected with resilient roller 4, apply towards the pressure of rotor 5 to resilient roller 4, makes resilient roller 4 can compress fiber between resilient roller 4 and rotor 5.
Again such as Fig. 1, Fig. 2 and embodiment illustrated in fig. 5 in, use pressue device 7 to be connected with pressure roller 6, apply towards the pressure of resilient roller 4 to pressure roller 6, make pressure roller 6 can compress long fibre 1 between resilient roller 4 and pressure roller 6.
Pressue device 3 or pressue device 7 can be structurally hydraulic cylinder pressue device, cylinder pressue device, spring pressuring etc.Use hydraulic cylinder pressue device or cylinder pressue device that the pressure of valve to pressue device can be used to regulate, comprise real-time adjustment; Use spring pressuring to pass through frame for movement, such as screw structural etc. regulate pressure.
In various embodiments, fiber conveying device comprises fiber storage reel, described fiber storage mandrel surface is wound with long fibre, in fibre cutting process, and fiber storage spool turns, release the long fibre of winding, in order to strain long fibre, be conducive to follow-up cut-out processing, described fiber storage reel is also provided with damping mechanism, there is provided damping when rotated, to tighten long fibre.
In other embodiment, such as embodiment illustrated in fig. 5, fiber conveying device 2 comprises PE (polyethylene Poly Ethylen) pipeline, and long fibre is sent to follow-up take-up device and shearing device by PE pipeline.
In various embodiments, power set can be that motor, internal combustion engine or hydraulic motor etc. can provide mechanokinetic device.The output of power set, the motor shaft of such as motor can directly be connected with rotor or resilient roller, drives rotor or resilient roller to rotate, also can be connected with rotor or resilient roller, to realize different Power output effects by clutch or gear.Described driving rotor or resilient roller are rotated, in various embodiments, can rotor be only driven to rotate, rotated by rotor and then drive resilient roller to rotate, also can resilient roller be only driven to rotate, rotated by resilient roller and then drive rotor to rotate, can also be both driven rotor to rotate also to drive resilient roller to rotate, make the two all become drive roll.
In various embodiments, power set can be one, also can be two or more.
As shown in Figure 1, Figure 2, Figure 5 in embodiment, described take-up device is pressure roller 6, and described pressure roller 6 and resilient roller 4 are oppositely arranged, and has and compress long fibre 1 and hold the gap that long fibre 1 passes through between pressure roller 6 and resilient roller 4.The quantity of pressure roller is 1 in the embodiment shown in fig. 1, Fig. 2 and embodiment illustrated in fig. 5 in, the quantity of pressure roller is 2, implementer can according to different demands, the quantity of pressure roller is set on demand, as long as pressure roller can coordinate with resilient roller, compresses long fibre therebetween.In embodiment, in order to better realize the tension effect of pressure roller, pressure roller 6 can arrange damper, to produce the damping of rotation, like this, larger frictional force can be produced to the long fibre 1 between pressure roller 6 and resilient roller 4.Or pressure roller 6 can be connected with power set, drive pressure roller 6 to rotate, when pressure roller rotates, the roller surface direction of motion is contrary with the long stapled direction of motion.Tractive effect that so also can be good to long stapled generation.
In different embodiments, resilient roller 4 surface can use different elastomeric materials, and such as rubber, plastic cement, silica gel or elastic composite etc. have flexible material.
Embodiment as shown in Figure 1, Destaticizing device comprises and destatics roller 11, described in destatic roller 11 and be oppositely arranged with pressure roller 6, destatic to have between roller 11 and pressure roller 6 and compress long fibre 1 and hold the gap that long fibre 1 passes through; Described roller 11 surface that destatics is provided with conducting surface, destatic roller conducting surface ground connection or with destatic Electrode connection, described in destatic the polarity of electrode contrary with the polarity of the electrostatic charge entrained by long fibre.
Herein, it can be provided with continuous print conducting surface from the teeth outwards that surface is provided with conducting surface, and the periphery entirety of such as roller is conductive material, and also can arrange at interval, such as on the periphery of roller, damascene conductive material is provided with multiple conductive area.Conductive material can be metal or non-metallic conducting material.
Destatic effect by what destatic roller like this, greatly can eliminate electrostatic charge entrained on fiber.Destatic roller arrange simple and contact long stapled compression owing to destaticing between roller with pressure roller, also can play long stapled tension effect, strain the long fibre before entering cutting further, make cutting effect better.
In embodiment illustrated in fig. 2, similar with Fig. 1, be also provided with and destatic roller 11, difference is in Fig. 2, and the quantity of pressure roller 6 has 2.
Embodiment as shown in Figures 1 to 4, Destaticizing device also can comprise humidifying chamber 10 and humidifier 8, described humidifying chamber 10 is provided with fiber entry and fiber outlet, the fiber entry of humidifying chamber is used for entering for long fibre 1, the fiber outlet of humidifying chamber is used for exporting for long fibre 1, humidifying chamber 10 is also provided with steam inlet, described steam inlet and humidifier 8 conducting.By improving the humidity in humidifying chamber, the electrostatic charge that fiber carries can be removed.In different embodiments, humidifier can be heated moisture generator, also can be ultrasonic atomization humidifier etc.
Described moisture transmitter refers to and can produce moist air stream, increase the device of air humidity, in different embodiments, humidifier can be heating steam generator, heating steam generator makes water evaporating into steam by heating and makes steam enter into humidifying chamber, also can be ultrasonic atomization humidifier etc., make water fogging as little water droplet by ultrasonic wave vibration etc., the moisture air-flow forming band water smoke enters in humidifying chamber; Or direct evaporating humidifier, by molecular sieve evaporation technique, except calcium, magnesium ion in anhydrating, by water curtain rinse air, then through aerophor, the air of moistening cleaning is delivered in humidifying chamber, immersion electrode humidifier; Or immersion electrode humidifler, utilize water-immersed large-area electrode as terminal, using water as heating medium, when electric current is via water transfer electrical energy, produces heat, water is seethed with excitement, produce moisture; Or cold mist humidifier, this kind of humidifier utilizes fan forced air to contact with water by during water sucting medium, exchanges to increase the relative humidity of air; Or ultrasonic humidifier, this kind of humidifier utilizes humidifier that the globule is broken up as vaporific, and water smoke blows out through fan again.
Destatic effect in order to improve in embodiment, except fiber entry and fiber outlet, humidifying chamber 10 can adopt to be closed or semi-enclosed structure, and such as established by canvas shroud or sheet material enclosing etc. realizes closing or semi-enclosed structure.Closed or semi-enclosed structure contributes to gathering of steam, reaches and better destatics effect.
Humidifying chamber and humidifier can be arranged in the lump with destaticing roller, better destatic effect to reach, and also can arrange separately on fibre cutting equipment and destatic roller, or arrange separately humidifying chamber and humidifier, can realize equally destaticing effect.
In order to coordinate humidifying chamber set on fibre cutting equipment and humidifier, in certain embodiments, take-up device is provided with heater, described heater is for heating the position that take-up device contacts with long fibre.This be due to, by improve long fibre process path on humidity, the electrostatic charge entrained by fiber can be removed, but also likely because the reasons such as subsequent path temperature reduction form condensation vapor, generate globule attachment with on fiber, be unfavorable for that the cutting of fiber and the follow-up processing to short fiber use.Therefore on take-up device, be provided with heater, heater is for heating the position that take-up device contacts with long fibre.Such as the electrical heating elements such as resistance wire or electric heating piece is set on Fig. 1 or pressure roller embodiment illustrated in fig. 2, roller surface is heated, makes the long fibre through roller surface be heated like this, can condensation vapor be avoided, the globule of condensation maybe can be made to evaporate, keep the drying of fiber.
Embodiment as shown in Figure 3, described take-up device comprises deflector roll 13, described guide roller surface is used for contacting with long fibre 1, deflector roll 13 and power set are in transmission connection, power set drive deflector roll 13 to rotate, when deflector roll rotates, the guide roller surface direction of motion is contrary with the long stapled direction of motion, and such as shown in Fig. 3, deflector roll rotates in a direction indicated by the arrow, and its direction of motion rotating rear guide roller surface is contrary with the long fibre direction of motion.By the rotation of deflector roll, guide roller surface and long fibre are moved generation frictional force mutually like this, reach the long stapled effect between tension deflector roll and shearing device.
Embodiment as shown in Figure 4, described take-up device comprises nip rolls, and described nip rolls comprises the first nip rolls 14 of being oppositely arranged and has between the second nip rolls 15, first nip rolls 14 and the second nip rolls 15 and compresses long fibre 1 and hold the gap that long fibre 1 passes through.Like this by the pressuring action of two nip rolls, reach the long stapled effect between tension deflector roll and shearing device.In further prioritization scheme, the first nip rolls 14 and the second nip rolls 15 can also be provided with damping element, to realize better tension effect.
Effect is destaticed for improving further, in certain embodiments, described rotor cutting edge is provided with conducting surface, the conducting surface ground connection of rotor cutting edge or with destatic Electrode connection, described in destatic the polarity of electrode contrary with the polarity of the electrostatic charge entrained by long fibre.Above-described embodiment, in conjunction with the technical scheme destaticing roller, arranges in the position relative with pressure roller and destatics roller, destatics to have between roller and pressure roller compress long fibre and hold the gap that long fibre passes through;
By embodiment illustrated in fig. 1, can find, because rotor and resilient roller are oppositely arranged, and resilient roller and pressure roller are also oppositely arranged, pressure roller with destatic roller and be oppositely arranged, therefore rotor and pressure roller are positioned at long stapled side, on the other side, resilient roller with destatic roller and be positioned at long stapled opposite side.Like this by rotor with destatic roller and remove electrostatic respectively in long stapled both sides, electrostatic charge can be eliminated more up hill and dale, better destatic effect to reach.
In order to better remove electrostatic, in certain embodiments, described resilient roll surface is provided with conducting surface, the conducting surface ground connection of resilient roller or with destatic Electrode connection, described in destatic the polarity of electrode contrary with the polarity of the electrostatic charge entrained by long fibre.
In order to better remove electrostatic, in certain embodiments, the contact surface that described take-up device contacts with long fibre is conducting surface, the conducting surface ground connection of take-up device or with destatic Electrode connection, described in destatic the polarity of electrode contrary with the polarity of the electrostatic charge entrained by long fibre.
In order to better remove electrostatic, in certain embodiments, the contact surface that described conveyer contacts with long fibre is conducting surface, the conducting surface ground connection of conveyer or with destatic Electrode connection, described in destatic the polarity of electrode contrary with the polarity of the electrostatic charge entrained by long fibre.
Such as Fig. 1 is to embodiment illustrated in fig. 4, and described fiber conveying device comprises the above metal bar 9 of two couple of be arrangeding in parallel, and often pair of metal bar is oppositely arranged, and has the transmission gap holding long fibre and pass through between metal bar.Metal bar 9 ground connection or with destatic Electrode connection, described in destatic the polarity of electrode contrary with the polarity of the electrostatic charge entrained by long fibre.Described metal bar can be solid, also can be hollow.
Structure shown in Fig. 3, Fig. 4 provides another fibre cutting equipment, for long fibre is cut to short fiber, described fibre cutting equipment comprises fiber conveying device successively along fiber conveying direction, take-up device and shearing device, and described fibre cutting equipment is also provided with power set;
Described fiber conveying device is for carrying long fibre;
Described take-up device is for straining take-up device to the long fibre on shearing device path;
Described shearing device comprises the rotor and resilient roller that are oppositely arranged, described rotor is provided with rotor cutting edge, the roller surface of described resilient roller is elastic surface, there is between rotor and resilient roller the gap holding fiber and pass through, compressed by the rotor that rotates and resilient roller and be cut to short fiber by the rotor cutting edge that rotor is arranged after long fibre enters the gap between rotor and resilient roller, described rotor cutting edge is provided with conducting surface, the conducting surface ground connection of rotor cutting edge or with destatic Electrode connection, described resilient roll surface is provided with conducting surface, the conducting surface ground connection of resilient roller or with destatic Electrode connection, the described polarity destaticing electrode is contrary with the polarity of the electrostatic charge entrained by long fibre,
Described power set and shearing device are in transmission connection, and drive rotor or resilient roller to rotate.
Fibre cutting equipment in this embodiment and the various embodiments described above similar, difference is, independent Destaticizing device can not be adopted, and directly conducting surface is set at resilient roll surface, long fibre to be cut passes through fiber conveying device, transmit, rotor in shearing device and resilient roller compress fiber therebetween, by the rotation of rotor and resilient roller, with rotor, frictional force between resilient roller and long fibre, the motion of traction long fibre, then through take-up device, due to the effect of take-up device, long fibre between take-up device to shearing device is tightened up, make the cut-out of shearing device respond well, and make the staple length that cuts out even.When long fibre moves to resilient roller position, by ground connection or the electrostatic charge removed with the resilient roller destaticing Electrode connection on fiber.
In order to better remove electrostatic, rotor cutting edge is provided with conducting surface, the conducting surface ground connection of rotor cutting edge or with destatic Electrode connection, described in destatic the polarity of electrode contrary with the polarity of the electrostatic charge entrained by long fibre.As shown in Figure 3, Figure 4, rotor is positioned at long stapled side, on the other side, and resilient roller is positioned at long stapled opposite side.Remove electrostatic by rotor and resilient roller respectively in long stapled both sides like this, electrostatic charge can be eliminated more up hill and dale, better destatic effect to reach.
In some embodiment, fibre cutting equipment is also provided with Destaticizing device, and described Destaticizing device is arranged on the long fibre motion path between fiber conveying device and take-up device;
Described Destaticizing device comprises humidifying chamber and humidifier, described humidifying chamber is provided with fiber entry and fiber outlet, the fiber entry of humidifying chamber is used for entering for long fibre, the fiber outlet of humidifying chamber is used for exporting for long fibre, humidifying chamber is also provided with steam inlet, described steam inlet and humidifier conducting.
In order to prevent condensation vapor, on above-described embodiment basis, take-up device is provided with heater, described heater is for heating the position that take-up device contacts with long fibre.
By arranging humidifying chamber and humidifier carries out removal electrostatic, and the object further arranging heater on take-up device describes at description above in detail with technique effect, just repeats no more at this.
It should be noted that, in this article, the such as relational terms of first and second grades and so on is only used for an entity or operation to separate with another entity or operating space, and not necessarily requires or imply the relation that there is any this reality between these entities or operation or sequentially.And, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thus make to comprise the process of a series of key element, method, article or terminal device and not only comprise those key elements, but also comprise other key elements clearly do not listed, or also comprise by the intrinsic key element of this process, method, article or terminal device.When not more restrictions, the key element limited by statement " comprising ... " or " comprising ... ", and be not precluded within process, method, article or the terminal device comprising described key element and also there is other key element.In addition, in this article, " be greater than ", " being less than ", " exceeding " etc. be interpreted as and do not comprise this number; " more than ", " below ", " within " etc. be interpreted as and comprise this number.
Although be described the various embodiments described above; but those skilled in the art are once obtain the basic creative concept of cicada; then can make other change and amendment to these embodiments; so the foregoing is only embodiments of the invention; not thereby scope of patent protection of the present invention is limited; every utilize description of the present invention and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included within scope of patent protection of the present invention.
Claims (12)
1. a fibre cutting equipment, for long fibre is cut to short fiber, is characterized in that, described fibre cutting equipment comprises fiber conveying device successively along fiber conveying direction, Destaticizing device, take-up device and shearing device, described fibre cutting equipment is also provided with power set;
Described fiber conveying device is for carrying long fibre;
Described Destaticizing device is for removing the electrostatic charge that fiber carries;
Described take-up device is for straining take-up device to the long fibre on shearing device path;
Described shearing device comprises the rotor and resilient roller that are oppositely arranged, described rotor is provided with rotor cutting edge, the roller surface of described resilient roller is elastic surface, have between rotor and resilient roller and hold the gap passed through of fiber, compressed by the rotor that rotates and resilient roller and be cut to short fiber by the rotor cutting edge that rotor is arranged after long fibre enters the gap between rotor and resilient roller;
Described power set and shearing device are in transmission connection, and drive rotor or resilient roller to rotate.
2. fibre cutting equipment according to claim 1, is characterized in that, described take-up device comprises pressure roller, and described pressure roller and resilient roller are oppositely arranged, and has and compress long fibre and hold the gap that long fibre passes through between pressure roller and resilient roller.
3. fibre cutting equipment according to claim 2, is characterized in that, described Destaticizing device comprises and destatics roller, described in destatic roller and pressure roller is oppositely arranged, destatic to have between roller and pressure roller and compress long fibre and hold the gap that long fibre passes through;
The described roller surface that destatics is provided with conducting surface, destatic roller conducting surface ground connection or with destatic Electrode connection, described in destatic the polarity of electrode contrary with the polarity of the electrostatic charge entrained by long fibre.
4. fibre cutting equipment according to claim 1, it is characterized in that, described take-up device comprises deflector roll, described guide roller surface is used for contacting with long fibre, deflector roll and power set are in transmission connection, power set drive deflector roll to rotate, and when deflector roll rotates, the guide roller surface direction of motion is contrary with the long stapled direction of motion.
5. fibre cutting equipment according to claim 1, it is characterized in that, described take-up device comprises nip rolls, and described nip rolls comprises the first nip rolls and the second nip rolls that are oppositely arranged, has and compress long fibre and hold the gap that long fibre passes through between the first nip rolls and the second nip rolls.
6. fibre cutting equipment according to claim 1, is characterized in that, described rotor cutting edge is conductor, rotor cutting edge ground connection or with destatic Electrode connection, described in destatic the polarity of electrode contrary with the polarity of the electrostatic charge entrained by long fibre.
7. fibre cutting equipment according to claim 1, it is characterized in that, described resilient roll surface is provided with conducting surface, the conducting surface ground connection of resilient roller or with destatic Electrode connection, described in destatic the polarity of electrode contrary with the polarity of the electrostatic charge entrained by long fibre.
8. fibre cutting equipment according to claim 1, it is characterized in that, the contact surface that described take-up device contacts with long fibre is conducting surface, the conducting surface ground connection of take-up device or with destatic Electrode connection, described in destatic the polarity of electrode contrary with the polarity of the electrostatic charge entrained by long fibre.
9. fibre cutting equipment according to claim 1, it is characterized in that, the contact surface that described conveyer contacts with long fibre is conducting surface, the conducting surface ground connection of conveyer or with destatic Electrode connection, described in destatic the polarity of electrode contrary with the polarity of the electrostatic charge entrained by long fibre.
10. fibre cutting equipment according to claim 9, is characterized in that, described fiber conveying device comprises the above metal bar of two couple of be arrangeding in parallel, and often pair of metal bar is oppositely arranged, and has the transmission gap holding long fibre and pass through between metal bar.
11. 1 kinds of fibre cutting equipment, for long fibre is cut to short fiber, it is characterized in that, described fibre cutting equipment comprises fiber conveying device successively along fiber conveying direction, take-up device and shearing device, described fibre cutting equipment is also provided with power set;
Described fiber conveying device is for carrying long fibre;
Described take-up device is for straining take-up device to the long fibre on shearing device path;
Described shearing device comprises the rotor and resilient roller that are oppositely arranged, described rotor is provided with rotor cutting edge, the roller surface of described resilient roller is elastic surface, have between rotor and resilient roller and hold the gap passed through of fiber, compressed by the rotor that rotates and resilient roller and be cut to short fiber by the rotor cutting edge that rotor is arranged after long fibre enters the gap between rotor and resilient roller;
Described resilient roll surface is provided with conducting surface, the conducting surface ground connection of resilient roller or with destatic Electrode connection;
Described take-up device is provided with conducting surface, the conducting surface ground connection of take-up device or with destatic Electrode connection, or described rotor cutting edge is conductor, rotor cutting edge ground connection or with destatic Electrode connection;
The described polarity destaticing electrode is contrary with the polarity of the electrostatic charge entrained by long fibre;
Described power set and shearing device are in transmission connection, and drive rotor or resilient roller to rotate.
12. fibre cutting equipment according to claim 11, it is characterized in that, described take-up device comprises pressure roller, and described pressure roller and resilient roller are oppositely arranged, and has and compress long fibre and hold the gap that long fibre passes through between pressure roller and resilient roller.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510369368.XA CN104960015A (en) | 2015-06-29 | 2015-06-29 | Fiber cutting-off equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510369368.XA CN104960015A (en) | 2015-06-29 | 2015-06-29 | Fiber cutting-off equipment |
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| CN104960015A true CN104960015A (en) | 2015-10-07 |
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| CN201510369368.XA Pending CN104960015A (en) | 2015-06-29 | 2015-06-29 | Fiber cutting-off equipment |
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| CN105500668A (en) * | 2016-01-21 | 2016-04-20 | 福建海源自动化机械股份有限公司 | Fiber cutting device and fiber reinforced composite material mixing equipment |
| CN108728922A (en) * | 2018-08-14 | 2018-11-02 | 安徽和邦纺织科技有限公司 | A kind of lossless removal device of electrostatic of biomass fiber spinning-drawing machine |
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Application publication date: 20151007 |