CN207845837U - One kind prevents adhesion filament spinning component - Google Patents

Abstract

It prevents adhesion filament spinning component the utility model is related to one kind, bumps is both provided on the surface of chamber one, chamber two, gland one, gland two, baffle one, baffle two, import one, import two, melt inlet one, melt inlet two and spinneret being in contact with polymer melt and are prevented adhesion mechanism；The bumps anti-adhesion structure is equally distributed recess and protrusion.Due to being both provided with concave-convex anti-adhesion structure on the inner wall with the component of molten polymer joint of filament spinning component, anti-adhesive attraction of the polymer melt in filament spinning component may be implemented；The prevent adhesion mechanism of action of mechanism of the bumps is：Concave-convex anti-adhesion structure includes sunk part and projection portion, projection portion is higher by the setting of member internal walls surface, being in direct contact between highly viscous polymer melt and member internal walls is reduced using supporting role between points, and gas suspension effect is formed under the action of high temperature and pressure melt, plays and prevents adhesion from separate type.

Description

One kind prevents adhesion filament spinning component

Technical field

The utility model is related to textile technology fields, and in particular to a kind of melt spinning prevents adhesion filament spinning component.

Background technology

British patent in 1845 is come from the earliest record of melt spinning process.Nineteen thirty-nine melt spinning is as manufacture nylon The production technology of 66 fibers obtains industrial applications.Melt spinning basic process includes material melts, squeezed out from spinneret micropore, Melt stream cooling and solidifying forming.Manufactured long filament can be used bobbin coiling and molding or carry out other processing.In melt spinning In the process, polymer feeds extruder, and it is tired to be sent to metering further along after screw rod transmission, plasticizing, melting:Metering is poly- to pass through essence Really metering ensures that the melt of polymer can be flowed into stable and uniform in critical component filament spinning component, the melt in filament spinning component By the filtering of filter medium, it is provided in porous spinneret as thread by high pressure indentation after eliminating impurity and bubble；Carefully Stream by horizontal blowing while being quickly cooled down (quenching), since the effect of following wireline reel also generates super drawing so that diameter Attenuate；As-spun fibre is wound into certain package.

Filament spinning component is mainly the filter layer being made of upper layer overcurrent lid, metal mesh and filter sand, distributes under normal conditions Plate and porous spinneret are constituted.Spinning melt is lain prone type after top-level entries flow into filament spinning component via the back taper minister in ancient times in sand chamber Overcurrent lid diffusely enter component inner cavity in, filtration combination layer is ingeniously entered under the action of upper stressor layer.Filter layer usually has Multiple filtration net and METALLIC FILTRATION SAND composition.The a piece of coarse net for not luring steel wire to weave into often is placed in the top layer of filter layer, is become Cover net or cover net, it is therefore an objective to which the sundries for stopping bulk and the layer of sand for preventing lower part move.When being filtered using filter sand, press in principle Grit size is carefully sequentially arranged by thick.When placing multistorey strainer mesh, and by the descending principle of mesh size.In filtering group The bottom for closing layer has placed one layer of supporting network, it is typically to be made of a piece of or two panels coarse net, it is therefore an objective to support upper layer mistake Filtering layer increases longitudinal rigidity, has the function that not to be depressed, it can also prevent from draining to the work of spinneret orifice under broken filter sand sometimes With.Melt after fine filtering flows into the hole of distribution plate.On the one hand the effect of distribution plate is to play support upper level filter Layer, is on the other hand before polymer melt is assigned to spinneret plate as homogeneously as possible so that the uniform flow per hole also replaces Spinneret has shared the melt pressure of part so that spinning plate surface is unlikely to superpressure and deforms.Polymer melt is squeezed into After the guide hole of spinneret, micropore gives the certain shape of melt and is extruded as strand, finishes melt like this in spinning group The design of the filament spinning component of part internal flow need to mainly determine its structure snd size.Wherein component external structure snd size are main The problems such as needing to consider the intensity and corrosion resistance of itself, the problem of also relating to installing and dismounting and leakproofness.Filament spinning component Internal element just really carries main spinning function, it should how to select filtration combination element, hybrid element, distribution member With spinneret panel element etc., it is necessary to comprehensive to go fully to calculate from multi-angles such as hydrodynamics, melt rheology and heat conductions And consideration.Certainly the problem of can not ignoring the inner sealing of each element and strong rigidity while design.Melt spinning is in height The lower progress of temperature, if polymer melt is chronically at high humidity state, it may occur that degradation influences the quality of precursor, so designing When component internal channel, melt should be made to be uniformly distributed in each micropore of spinneret as far as possible, channel resistance answer it is equal, in component There cannot be dead angle, in case melt residence time is long and decomposes.It should process smooth with king's part surface of melt contacts, Material cannot be made to be detained due to wall surface resistance.Fluid motion uniformity includes mainly fluid motion speed, pressure in filament spinning component The contents such as power, residence time, discharging distribution.Ideal filament spinning component should be able to ensure that above-mentioned parameter is all identical simultaneously, sample presentation It just can ensure that polymer melt is evenly distributed to identical matter in each spinneret orifice of spinneret, it is equal finally to spin out structural behaviour Even high quality fibers.However, the factor for influencing flow field uniformity in filament spinning component is numerous, wherein mainly having material properties, work Skill condition, device structure parameter etc..When the above two control identical, device structure is its most important influence factor again.

The flow behavior of polymer melt is more complex compared with for small molecule solution.Under external force, melt is not Irreversible viscous yielding is only shown, but also shows reversible flexible deformation.This is because the flowing of polymer is not It is simple Relative sliding between macromolecular chain, but the overall result of moving cell transition successively.Under external force, macromolecule Chain is inevitably stretched along external force direction, removes external force, and macromolecular chain will be spontaneously rolled up again.This conformation becomes Elastically-deformable development and Recovery Process caused by changing are relaxation, which depends on polymer molecular weight, outer masterpiece With time, temperature etc..In molding process, the appearance of flexible deformation and its subsequent lax pair fiber, dimensional stability, Internal stress etc. has substantial connection.

High polymer molten viscosity is cut flowing and is mainly characterized in that:It is very high to cut viscosity；Viscosity strong depend-ence trimming rate is cut, absolutely Most of high polymer moltens belong to pseudoplastic fluid；Velocity flow profile of the pseudoplastic behavior high polymer molten in pipe is not parabolically It is linear, and it is close to plunger flow, velocity gradient concentrates on near-wall, may have tube wall sliding to move in some cases, It there may also be molecular-weight gradation effect in flowing, low molecular weight fraction made to be more than pipe axis in near-wall.

It is not constant temperature process in actual production process, and is unstable state, but above-mentioned spinnability is theoretical, to changes It is all control that the forming process of fiber, which still has preferable reference and directive significance, the principal element obtained from spinnability theory, The factor that spinning processed is smoothed out.Such as be viscosity and surface tension to capillary mechanism major influence factors, cohesive energy is ruptured The principal element that mechanism influences is deformation speed and viscoplasticity size etc..Understanding the spinnability principle of melt contributes to us adjusting When saving spinning technique, optimal conditions are targetedly selected, to avoid occurring wild effect in spinning.Change spinning king The rheological property of skill parameter and raw material may make the variable element range for stablizing spinning fully increase, the convenient tune with technique It is whole.Since the high temperature polymer melt of melting needs to shift and flow in filament spinning component, high-temperature fusant and filament spinning component Inevitably there are contacts for quality inspection, also just inevitably there is adherency on the inner wall of filament spinning component, although mesh It is preceding the smooth enough of its inwall processing largely to be reduced due to interior when preparing filament spinning component Wall surface problem and caused by attachment of polymers, still, due to the limitation of machining accuracy and processing technology, it is difficult to accomplish that inner wall is complete It is complete smooth, it still will produce the adherency of polymer in this way；Also have in spinning process in polymer and spinning group in the prior art The scheme that lubricant is added between the inner wall of part, can play certain anti-adhesiving effect in this way, but these profits for being added Lubrication prescription will certainly enter in polymer, and then the property of polymer and the property of follow-up spinning generate unpredictable shadow It rings and worthless.Due to the adherency of the polymer in spinning process, all needed after the production schedule for not completing a batch Filament spinning component is thoroughly cleaned, time and cost can be caused greatly to consume the cleaning of filament spinning component, but also Can be difficult to be cleaned, and subsequent production can be adversely affected there are some dead angles.Therefore, there is an urgent need for exploitations one Kind new anti-adherency of filament spinning component or anti-blocking techniques, the shortcomings that overcome in the prior art.

Utility model content

For the prior art there are above-mentioned technical problem, the utility model provides and a kind of can effectively reduce polymer melt and exist The novel filament spinning component that prevents adhesion of filament spinning component inner wall adherency.

To achieve the above object, the utility model provides following technical scheme：

One kind prevents adhesion filament spinning component, and filament spinning component is by shell, material cup, base lid, gland, baffle, filter core and spinneret It constitutes, material cup and spinneret be mounted in shell, and base lid and spinneret are respectively arranged in the upper and lower part of shell, in base lid Setting is provided with symmetrical configuration, mutually independent chamber there are two import, respectively import one and import two in the material cup One and chamber two, gland include gland one and gland two, baffle includes baffle one and baffle two, and filter core includes filter core one With filter core two；In the chamber one, melt inlet one corresponding with import one is provided on gland one, melt inlet one runs through Gland one is arranged, and gland one is located at the top of baffle one, and gap one is formed between baffle one, one upper end of melt inlet and Import one is connected to, and lower end is connected to gap one, and filter core one is set in one outside of baffle；It is right with import two to be provided on gland two The melt inlet two answered, melt inlet two are arranged through gland two, and gland two is installed on the top of baffle two, and with baffle two Between form gap two, two upper end of melt inlet is connected to import two, and lower end is connected to gap two, and filter core two is set in baffle Two outsides；The spinneret orifice being connected with material cup is provided on spinneret；In chamber one, chamber two, gland one, gland two, water conservancy diversion Block one, baffle two, import one, import two, melt inlet one, melt inlet two and spinneret connect with polymer melt Bumps are both provided on tactile surface to prevent adhesion mechanism；The bumps anti-adhesion structure is equally distributed recess and protrusion.

Preferably, the recess in the concave-convex anti-adhesion structure and protrusion is spaced is uniformly distributed；The surface area of protrusion It it is 0.5-2 square millimeters, the surface area of recess is 1-3 square millimeters；

Preferably, several latches are tiltedly installed on the material cup lateral wall, material cup is installed on shell by latch On.

Preferably, the ladder for stationary gland, baffle and filter core is provided in the material cup madial wall.

Preferably, the gland is symmetrical structure, is made of the convex platform of frustoconical bevel and column lower cushion cap, melt enters Mouth is disposed through at gland axially symmetric line, and lower cushion cap bottom raises up forms cavity in lower cushion cap bottom.

Preferably, the baffle is the T-type structure being made of the vertex of a cone, cylinder, and groove, cylinder side are provided on the vertex of a cone Wall is correspondingly arranged on plurality of guiding gutter with groove, and vertex of a cone center is Chong Die with melt inlet center, and vertex of a cone outer diameter is big compared with cylinder, and position In cylinder top.

Preferably, the spinneret is constituted by being independent of each other and not communicated with each other spinneret district one and spinneret district two, spinneret Area one and spinneret district two constitute a plate two-region structure of spinneret.

Preferably, it is provided with half-round metal sealing ring between the material cup and spinneret.

The beneficial effects of the utility model：

One kind of the utility model prevents adhesion filament spinning component, filament spinning component by shell, material cup, base lid, gland, baffle, Filter core and spinneret are constituted, and import is divided into import one and import two, and import one corresponds to melt inlet one, and import two corresponds to melt and enters Mouth two, in chamber one, chamber two, gland one, gland two, baffle one, baffle two, import one, import two, melt inlet One, bumps are both provided on the surface of melt inlet two and spinneret being in contact with polymer melt to prevent adhesion mechanism；It should Concave-convex anti-adhesion structure is equally distributed recess and protrusion.Compared with traditional fused spinning assembling parts, has the following advantages：By In being both provided with concave-convex anti-adhesion structure on the surface for the component of filament spinning component being in contact with molten polymer, may be implemented Anti- adhesive attraction of the polymer melt in filament spinning component；The prevent adhesion mechanism of action of mechanism of the bumps is：Concave-convex anti-sticking connection Structure includes sunk part and projection portion, and projection portion is higher by parts surface setting, utilizes supporting role between points Being in direct contact between highly viscous polymer melt and parts surface is reduced, and is formed under the action of high temperature and pressure melt Gas suspension acts on, and plays and prevents adhesion from separate type；Sunk structure plays the role of accommodating levitation gas, mutual with projection portion Cooperation；The surface area of protrusion is 0.5-2 square millimeters, and the surface area of recess is 1-3 square millimeters, it is preferable that raised surface Product is 1 square millimeter, and the surface area of recess is 2 square millimeters, and sunk part and lug boss branch point are connected to form accurate bee Nest shape protects grid, and parts surface and polymer melt are separated, the effect to prevent adhesion is increased.Projection portion and sunk part Area should not be too large, if area is excessive, good preventing adhesiving effect can not be played, and polymer melt directly with The case where parts surface is in contact is without two；The area of the two is also unsuitable too small, if area is too small, can not play estimated Preventing adhesiving effect, and difficulty of processing also can be very big.Concave-convex anti-adhesion structure can be in the various pieces for preparing filament spinning component When apply on these parts respectively, may be used by with bumps prevent adhesion mechanism sark directly the docile and obedient table in component The form in face carries out, and can also be carried out in the form of precision lathe processing, specific processing method is in the prior art Common parts machining means, no longer describe herein.

Description of the drawings

Fig. 1 is that the utility model prevents adhesion the schematic diagram of filament spinning component.

Reference numeral：

A. chamber one；B. chamber two；C. gap one；D. gap two；1. shell；2. material cup；3. spinneret；31. Dispensing orifice；4a. glands one；4b. glands two；44a. melt inlets one；44b. melt inlets two；5a. baffles one；5b. Baffle two；6a. entrance pads one；6b. entrance pads two；7a. filter cores one；7b. filter cores two；9. base lid.

Specific implementation mode

The utility model is described in detail below in conjunction with specific embodiment and attached drawing.

Embodiment 1

As shown in Figure 1, a kind of filament spinning component that prevents adhesion of the utility model, filament spinning component is by shell, material cup, base Lid, gland, baffle, filter core and spinneret are constituted, and material cup and spinneret are mounted in shell, and base lid and spinneret are pacified respectively Upper and lower part loaded on shell, in base lid setting set in the material cup there are two import, respectively import one and import two It is equipped with two B of symmetrical configuration, one A of mutually independent chamber and chamber, gland includes two 4b of one 4a of gland and gland, and baffle includes Two 5b of one 5a of baffle and baffle, filter core include two 7b of one 7a of filter core and filter core；In one A of chamber, on one 4a of gland It is provided with melt inlet one 44a corresponding with import one, one 44a of melt inlet is located at through gland one 4a settings, one 4a of gland Above one 5a of baffle, and one C of gap being formed between one 5a of baffle, one upper ends 44a of melt inlet are connected to import one, under End is connected to one C of gap, and one 7a of filter core is set on the outside of one 5a of baffle；It is provided on two 4b of gland corresponding with import two molten Two 44b of body entrance, two 44b of melt inlet are installed on through gland two 4b setting, two 4b of gland above two 5b of baffle, and with lead Two D of gap is formed between two 5b of stream block, two upper ends 44b of melt inlet are connected to import two, and lower end is connected to two D of gap, filter core Two 7b are set on the outside of two 5b of baffle；The spinneret orifice being connected with material cup is provided on spinneret；In one A of chamber, chamber two B, one 4a of gland, two 4b of gland, one 5a of baffle, two 5b of baffle, import one, import two, one 44a of melt inlet, melt enter Bumps are both provided on the surface of mouthful two 44b and spinneret being in contact with polymer melt to prevent adhesion mechanism；The bumps are anti- Adhesion structure is equally distributed recess and protrusion.

Preferably, the recess in the concave-convex anti-adhesion structure and protrusion is spaced is uniformly distributed；The surface area of protrusion It it is 0.5-2 square millimeters, the surface area of recess is 1-3 square millimeters；

Due to being both provided with concave-convex anti-sticking connection on the surface for the component of filament spinning component being in contact with molten polymer Anti- adhesive attraction of the polymer melt in filament spinning component may be implemented in structure；The prevent adhesion mechanism of action of mechanism of the bumps is：It is recessed Convex anti-adhesion structure includes sunk part and projection portion, and projection portion is higher by parts surface setting, using between points Supporting role reduce being in direct contact between highly viscous polymer melt and parts surface, and in high temperature and pressure melt Gas suspension effect is formed under effect, is played and is prevented adhesion from separate type；Sunk structure plays the role of accommodating levitation gas, and convex Part is played to cooperate；The surface area of protrusion is 0.5-2 square millimeters, and the surface area of recess is 1-3 square millimeters, it is preferable that The surface area of protrusion is 1 square millimeter, and the surface area of recess is 2 square millimeters, and sunk part is connected shape with lug boss branch point At accurate cellular protection grid, parts surface and polymer melt are separated, the effect to prevent adhesion is increased.Projection portion It should not be too large with the area of sunk part, if area is excessive, good preventing adhesiving effect, and polymer can not be played The case where melt is directly in contact with parts surface is without two；The area of the two is also unsuitable too small, if area is too small, also not Estimated preventing adhesiving effect can be played, and difficulty of processing also can be very big.Concave-convex anti-adhesion structure can prepare filament spinning component Various pieces when apply on these parts respectively, may be used by with bumps prevent adhesion mechanism sark it is directly docile and obedient Form on the surface of component carries out, and can also be carried out in the form of precision lathe processing, specific processing method is existing There are the common parts machining means in technology.

Preferably, several latches are tiltedly installed on the material cup lateral wall, material cup is installed on shell by latch On.

Preferably, the ladder for stationary gland, baffle and filter core is provided in the material cup madial wall.

Preferably, the gland is symmetrical structure, is made of the convex platform of frustoconical bevel and column lower cushion cap, melt enters Mouth is disposed through at gland axially symmetric line, and lower cushion cap bottom raises up forms cavity in lower cushion cap bottom.

Preferably, the baffle is the T-type structure being made of the vertex of a cone, cylinder, and groove, cylinder side are provided on the vertex of a cone Wall is correspondingly arranged on plurality of guiding gutter with groove, and vertex of a cone center is Chong Die with melt inlet center, and vertex of a cone outer diameter is big compared with cylinder, and position In cylinder top.

Preferably, the spinneret is constituted by being independent of each other and not communicated with each other spinneret district one and spinneret district two, spinneret Area one and spinneret district two constitute a plate two-region structure of spinneret.

Preferably, it is provided with half-round metal sealing ring between the material cup and spinneret.

Finally it should be noted that above example is only to illustrate the technical solution of the utility model, rather than to this reality With the limitation of novel protected range, although being explained in detail to the utility model with reference to preferred embodiment, this field it is general Lead to it will be appreciated by the skilled person that can be modified or replaced equivalently to the technical solution of the utility model, without departing from this The spirit and scope of utility model technical solution.

Claims (1)

1. The filament spinning component 1. one kind prevents adhesion, filament spinning component is by shell, material cup, base lid, gland, baffle, filter core and spinneret structure At material cup and spinneret are mounted in shell, and base lid and spinneret are respectively arranged in the upper and lower part of shell, are set in base lid It sets there are two import, respectively import one and import two, symmetrical configuration, mutually independent chamber one is provided in the material cup With chamber two, gland includes gland one and gland two, and baffle includes baffle one and baffle two, and filter core includes one He of filter core Filter core two；In the chamber one, melt inlet one corresponding with import one is provided on gland one, melt inlet one is through pressure Lid one is arranged, and gland one is located at the top of baffle one, and gap one is formed between baffle one, one upper end of melt inlet and into Mouth one is connected to, and lower end is connected to gap one, and filter core one is set in one outside of baffle；It is provided on gland two corresponding with import two Melt inlet two, melt inlet two is arranged through gland two, and gland two is installed on the top of baffle two, and with baffle two it Between form gap two, two upper end of melt inlet is connected to import two, and lower end is connected to gap two, and filter core two is set in baffle two Outside；The spinneret orifice being connected with material cup is provided on spinneret；It is characterized in that：In chamber one, chamber two, gland one, pressure Lid two, baffle one, baffle two, import one, import two, melt inlet one, melt inlet two and spinneret with polymerize Concave-convex anti-adhesion structure is both provided on the surface that object melt is in contact；The bumps anti-adhesion structure be it is equally distributed recess and Protrusion；Recess and protrusion in the bumps anti-adhesion structure spaced are uniformly distributed；The surface area of protrusion is 0.5-2 squares The surface area of millimeter, recess is 1-3 square millimeters；

   Several latches are tiltedly installed on the material cup lateral wall, material cup is installed on by latch on shell；

   The ladder for stationary gland, baffle and filter core is provided in the material cup madial wall；

   The gland is symmetrical structure, is made of the convex platform of frustoconical bevel and column lower cushion cap, and melt inlet is through setting At gland axially symmetric line, lower cushion cap bottom raises up forms cavity in lower cushion cap bottom；

   The baffle is the T-type structure being made of the vertex of a cone, cylinder, and groove, column side wall and groove pair are provided on the vertex of a cone It should be provided with plurality of guiding gutter, vertex of a cone center is Chong Die with melt inlet center, and vertex of a cone outer diameter is big compared with cylinder, and on cylinder Portion；

   The spinneret is constituted by being independent of each other and not communicated with each other spinneret district one and spinneret district two, spinneret district one and spinneret district Two constitute a plate two-region structure of spinneret；

   It is provided with half-round metal sealing ring between the material cup and spinneret.