CN105751454A - Multistage injection structure and injection molding equipment with same - Google Patents
Multistage injection structure and injection molding equipment with same Download PDFInfo
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- CN105751454A CN105751454A CN201610260843.4A CN201610260843A CN105751454A CN 105751454 A CN105751454 A CN 105751454A CN 201610260843 A CN201610260843 A CN 201610260843A CN 105751454 A CN105751454 A CN 105751454A
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- Prior art keywords
- injection
- stage
- melt
- accumulator
- moulding melt
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
- B29C45/53—Means for plasticising or homogenising the moulding material or forcing it into the mould using injection ram or piston
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/72—Heating or cooling
- B29C45/74—Heating or cooling of the injection unit
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/76—Measuring, controlling or regulating
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses a multistage injection structure which comprises an injection structure body.The injection structure body is used for completing the injection process of injection molding melt and comprises an injection storage cylinder used for storing the injection melt of the needed capacity.The multistage injection structure is characterized by further comprising a feeding and discharging pipe seat which is used for introducing the injection melt and discharging the injection melt in the injection storage cylinder in an injection mode and comprises a feeding pipe and a discharging pipe; the feeding pipe is used for introducing the injection melt into the injection storage cylinder; the discharging pipe is used for discharging the injection melt in the injection storage cylinder in an injection mode and penetrates through the feeding and discharging pipe seat.According to the multistage injection structure, a multi-section type injection structure is adopted, feeding and discharging are carried out through different channels, the injection melt can be injected conveniently, and old material deposition is avoided.
Description
Technical field
The present invention relates to injection machine field, be specifically related to a kind of multi-stage injection structure and there is the injection-moulding device of this structure.
Background technology
Carbon fiber is a kind of carbon content novel inorganic fibrous material more than 90% (mass fraction), there are a series of excellent properties such as high specific strength, high ratio modulus, high temperature resistant, corrosion-resistant, endurance, radioprotective, conduction, heat transfer and relative density be little, belong to typical high-performance fiber.The inherent character of the existing material with carbon element of carbon fiber, has both again the soft machinability of textile fabric, utilizes that the component quality that carbon fiber makes is light, specific stiffness is high, has wide range of applications.But, carbon fiber application form ripe at present mainly has four kinds, a kind of for hands paste laminate layer method, carbon fiber sheet after dipped glue is cultrated lamination, or laying is while the upper resin of brush, hot repressing molding, the carbon fiber product intensity height that this kind of method is made, but production efficiency is low；One is filament winding process, is wrapped in by carbon mono-filaments on carbon fiber axle, and this kind of method is only applicable to make cylinder and holloware, and production efficiency is low；One is die pressing, and this method is to put in metal die by the carbon fibre material of pre-soaked resin, makes unnecessary glue overflow after pressurization, then hot setting molding, the carbon fiber product intensity height that this kind of method is made, but same production efficiency is low, and structural member cannot be made；A kind of for long fine pellet injection moulding, by carbon fiber preprocessing, make pellet, then through by injection machine injection mo(u)lding, although this kind of method solves production efficiency problem, but the carbon fiber that fibre length is longer in pellet, under the shearing and heat effect of screw in injection molding machine and hot flow path, in manufactured goods, fibre length is only 30% at more than 5mm, causes manufactured goods intensity to be substantially reduced.
Owing to the intensity of carbon fibre material itself at high temperature predisposes to damage, and the length of carbon fiber and its staggered complexity in manufactured goods, the intensity of its manufactured goods will be affected, as can be seen here, at present for the application of carbon fiber, the production technology that guarantee carbon fibre material intensity in sight realizes again mass industrialized production is vacancy, the equipment of continuous prodution and processing and forming for realizing carbon fiber is similarly in the state of the market vacancy, therefore, develop a kind of carbon fiber that not only can reduce and by the time of high temperature injury but also carbon fiber length in manufactured goods can be increased, and the equipment that can meet the efficiency requirements of industrialized mass is particularly necessary.
In prior art, injection machine injection portion form mostly be injection accumulator be directly connected to injection nozzle, this kind of form is unfavorable for the discharge of injection moulding melt.
In view of drawbacks described above, creator of the present invention obtains the present invention finally through research for a long time and practice.
Summary of the invention
For solving above-mentioned technological deficiency, the technical solution used in the present invention is in that, it is provided that a kind of multi-stage injection structure, including: an injection structure body, it has been used for the injection process of injection moulding melt；Described injection structure body includes:
One injection accumulator, it is for storing the described injection moulding melt of desired volume；
Described multi-stage injection structure also includes:
One feeding and discharging base, it is used for introducing described injection moulding melt, and the described injection moulding melt in described injection accumulator is injected discharge；Described feeding and discharging base includes: a feed pipe and a drainage conduit,
Described feed pipe, it is for introducing described injection accumulator by described injection moulding melt；
Described drainage conduit, it is discharged for being injected by the described injection moulding melt in described injection accumulator.
It is also preferred that the left described multi-stage injection structure also includes an injection putter, it is discharged in order to promote described injection moulding melt；Arranging an annular flash groove on described injection putter or described injection accumulator, it is in order to collect the described injection moulding melt of spilling；Arranging an overflow pipe with described annular flash groove opposite position place in described injection accumulator, it is for discharging the described injection moulding melt that described annular flash groove is collected.
It is also preferred that the left described multi-stage injection structure also includes:
One injection cylinder, it is with thinking that injection process provides power；Described injection cylinder includes:
One injection cylinder piston rod, it is in order to promote described injection putter；
One injection cylinder piston rod slide holder, it is used for supporting described injection cylinder piston rod.
It is also preferred that the left be provided with displacement measurement device on described injection cylinder piston rod, it is used for showing described injection cylinder piston rod location.
It is also preferred that the left described multi-stage injection structure also includes: an injection catheter, it is used for turning on described drainage conduit.
It is also preferred that the left described multi-stage injection structure also includes at least one heater, it is for described injection moulding melt continuous heating.
It is also preferred that the left described multi-stage injection structure also includes: a check-valves, described check-valves one-way conduction, it is used for preventing described injection moulding melt from producing to flow backwards after being injected into mould.
It is also preferred that the left be additionally provided with a material drum supporting device in described multi-stage injection structure, it is used for supporting described multi-stage injection structure and driving described multi-stage injection structure linearly to move.
A kind of injection-moulding device, it includes a storage and penetrates transformational structure, a compounding structure, it is characterised in that described injection-moulding device also includes having multi-stage injection structure as described above.
The beneficial effects of the present invention is compared with the prior art: 1, described carbon fiber forming equipment can realize the efficiency requirements of industrialized mass, carbon fiber manufactured goods strength demand can be met again.2, described multi-stage injection structure, adopts multisection type injection structure, utilizes different passages to carry out pan feeding and discharge, it is simple to injection moulding melt penetrates, it is to avoid old material deposits.3, movable multi-stage injection structure is adopted, by described multi-stage injection structure slide anteroposterior, can conveniently checking dismounting when maintenance, increase again the suitability of each ingredient, conveniently match with multiple kinds of molds.4, in described multi-stage injection mechanism, displacement measurement device is increased, it is achieved the accurate control to injection volume, and real-time monitoring, it is to avoid material causes manufactured goods mass defect time few, and expects waste of material of many times.
Accompanying drawing explanation
In order to be illustrated more clearly that the technical scheme in various embodiments of the present invention, below the accompanying drawing used required during embodiment is described is briefly described.
Fig. 1 is the schematic diagram of the carbon fiber forming equipment of the present invention；
Fig. 2 is the schematic diagram of the compounding structure of the present invention；
Fig. 3 is the schematic diagram of the opening cylinder of the present invention；
Fig. 4 is the schematic diagram of the cylinder of remaining silent of the present invention；
Fig. 5 is the schematic diagram that structure is penetrated in the storage of the present invention；
Fig. 6 is the generalized section of the buffering accumulator front view of the present invention；
Fig. 7 is the generalized section of the buffering accumulator right view of the present invention；
The storage that Fig. 8 is the present invention is penetrated gate valve and injects the generalized section one of gate valve；
The storage that Fig. 9 is the present invention is penetrated gate valve and injects the generalized section two of gate valve；
The storage that Figure 10 is the present invention is penetrated gate valve and injects the generalized section three of gate valve；
Figure 11 is the generalized section of the injection structure of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, to the present invention, above-mentioned and other technical characteristic and advantage are described in more detail.
A kind of carbon fiber forming equipment, it is for processing material to be processed, and carries out injection moulding；As it is shown in figure 1, the schematic diagram of the carbon fiber forming equipment that it is the present invention, described carbon fiber forming equipment includes: transformational structure, a multi-stage injection structure, a mould-locking structure 6 are penetrated in a compounding structure of fiber feeding structure 1, plastics feeding structure 2, a storage；
Described material to be processed includes: continuous fiber and formula materials, and described continuous fiber includes carbon fiber.
Embodiment 1
Carbon fiber forming equipment as described above, the present embodiment is different from part and is in that, described fiber feeding structure 1 is used for depositing described continuous fiber, and is transported in described feeding control structure by flexible pipe by described continuous fiber.
Embodiment 2
Carbon fiber forming equipment as described above, the present embodiment is different from part and is in that, described plastics feeding structure 2 includes feeding and claims, described feeding claims for described formula materials is measured, described plastics feeding structure arranges at least one described feeding and claims, each described feeding claims for weighing a kind of formula materials, and described formula materials is sent in described feeding control structure by described plastics feeding structure by bottom material mouth.Described feeding claims to configure corresponding feed supplement storehouse and feeding device, is used for realizing feed supplement and feeding function, it is simple to producing and continuously perform, the shape of described formula materials includes graininess.
Embodiment 3
Carbon fiber forming equipment as described above, the present embodiment is different from part and is in that, as in figure 2 it is shown, described compounding structure 3 is used for described material to be processed being sheared, melting；Described compounding structure 3 includes: a motor 31, one speed reducer 32, screw arbor assembly, a screw rod cylinder 33；
Described motor 31 is for providing power to compounding process, the output shaft of described motor 31 is connected with the input of described decelerator 32, the outfan of described decelerator 32 is connected with the fixing end of described screw arbor assembly, and described decelerator 32 is used for driving described screw arbor assembly to rotate around axis direction；Described screw arbor assembly includes being made up of at least two screw rods being arranged side by side, described screw rod is provided with at least one helix, when described material to be processed moves along the direction that described helix advances, the helix of various ways is set, various forms of helixes are combined, and are more conducive to the shearing to described material to be processed；It is internal that described screw arbor assembly is placed in described screw rod cylinder 33, described screw rod cylinder implements space for compounding process is provided, described screw rod cylinder 33 leaves at least 2 through holes, the position of described through hole is corresponding with the feed entrance point of described plastics feeding structure and described fiber feeding structure, described through hole includes the first feed-throughs 331 and the second feed-throughs 332, described first feed-throughs is used for putting into described continuous fiber, described second feed-throughs, it is used for putting into described formula materials, first feed-throughs described at least one of which is positioned at the downstream position of described second feed-throughs；Described first feed-throughs 331 is disposed relative to the remote location of described decelerator, described second feed-throughs 332 is disposed relative to the proximal location of described decelerator, and the first feed-throughs 331 described at least one of which is positioned at the downstream position of described second feed-throughs 332；Described screw rod cylinder includes at least one cylinder assembly, and described cylinder assembly is used for constituting described screw rod cylinder；Described continuous fiber and described formula materials are separately put in described compounding structure, and the position that puts into of described continuous fiber is positioned at the downstream putting into position of described formula materials, the shearing to described continuous fiber and heat time heating time can be reduced, so that described continuous fiber shear after the fibre plate segment length of formation longer, fiber fragment accounting more than 5mm is more, and then make the finished parts after injection mo(u)lding in tensile strength and impact strength, than the mode of production of the heating of described continuous fiber and shear time length, there is bigger lifting.
Described screw rod cylinder 33 is outside is provided with at least 1 heater, and it is for melting described formula materials；
Described compounding structure 3 is outside is also associated with side drawing-in device 34, and described screw rod cylinder 33 is additionally provided with the through hole 333 corresponding with described side drawing-in device 34；Described side drawing-in device 34 includes side feeding charging aperture, and described side feeding charging aperture is for putting into described side drawing-in device 34 by described material to be processed；Described side drawing-in device 34 can also include side feeding compounding devices, and described side feeding compounding devices is sheared for the material described to be processed that described side feeding charging aperture is put into, melted；Described side feeding compounding devices includes side feed screw cylinder, and it implements space for compounding process is provided；Described side feed screw inner barrel is provided with side feed screw assembly, and described side feed screw assembly is used for shearing material to be processed, and threadingly described material to be processed is transported in described compounding structure by direction of advance；Be provided with outside the feeding compounding devices of described side at least 1 heater its for by described material molten to be processed；Arranging described side drawing-in device can in complicated injection moulding production technology, heating-up temperature, the different types of described formula materials that there is larger difference heat time heating time are processed respectively, after it is melted, carry out compounding again, meet the diversified Production requirement under complicated technology, avoid, because different materials is sheared, added heat fusing simultaneously simultaneously, the processing performance of product structure, product being caused damage.
Described screw rod cylinder 33 one end is also associated with a driving valve 35, and described driving valve is positioned at the described screw rod cylinder 33 other end relative to described decelerator 32；Leakage material collecting tank it is connected to bottom described driving valve；
Described screw rod cylinder 33 is formed by connecting by least 1 cylinder assembly, each cylinder assembly is connected by connector, the total length of described screw rod cylinder 33 is not shorter than the length of described screw arbor assembly, as shown in Figure 3, Figure 4, described cylinder assembly includes opening cylinder and cylinder of remaining silent, being provided with described through hole on described opening cylinder, described opening cylinder is used for putting into material to be processed；Concrete needs according to technique, had by oneself the form of combination by described opening cylinder and described cylinder of remaining silent, adjust described through hole position on described screw rod cylinder, and then by the change of described lead to the hole site and with the coordinating of the heater arranged on described screw rod cylinder, hold heat time heating time and the heating-up temperature of described material to be processed, meet industrial diversified demand, it is to avoid the cost that enterprise repeats to purchase accessory and causes increases.
Described screw arbor assembly is made up of at least two screw rods being arranged side by side, and described screw rod is used for shearing material to be processed, and along helix direction of advance, described material to be processed is transported to downstream.
Described motor 31 drives described decelerator 32 to operate as PTO, described decelerator 32 drives described screw arbor assembly to rotate along respective axis around identical direction after internal structure is slowed down and increased square, the described formula materials that the conveying of described plastics feeding structure 2 comes enters described screw rod cylinder 33 via described through hole 332, described formula materials is sheared by described screw arbor assembly naturally, and melted under the effect of described heating devices heat；The continuous fiber that the conveying of described fiber feeding structure 1 comes enters described screw rod cylinder 33 via described through hole 331, described continuous fiber forms fiber fragment under the shear action of described screw arbor assembly, the formula materials of described fiber fragment and molten condition is mixed into injection moulding melt, under the thrust that described injection moulding melt produces when described screw rod rotates, it is admitted to downstream units together.Described continuous fiber is added from the remote location relative to described decelerator, thus reducing shearing and the melting time of described continuous fiber, it is ensured that described fiber fragment has enough length.At least one formula materials can be sent into described screw rod cylinder 33 via through hole 333 by described side drawing-in device 34, and at the effect down cut, melted of described screw arbor assembly and heater, described side drawing-in device 34 needs to select according to formula.When described compounding structure 3 is started working, open described driving valve, enable described injection moulding melt to flow out smoothly.Installed by the collocation of described opening cylinder with described cylinder of remaining silent, realize the change to described lead to the hole site and the change of barrel lenght, and then meet situations during actual production, feed entrance point demand is different, make described cylinder that form is set more diversified, meet the demand that kinds of processes produces.
Embodiment 4
Carbon fiber forming equipment as described above, the present embodiment is different from part and is in that, as it is shown in figure 5, described storage penetrate transformational structure 4 include buffering accumulator 41, storage penetrate oil hydraulic cylinder 42, storage penetrate gate valve 43, storage penetrate gate valve oil cylinder 44, passage 45, an injection gate valve 46, inject gate valve oil cylinder 47.
As shown in Figure 6, described buffering accumulator 41 includes accumulator cylinder body 411, accumulator plunger 412；Described accumulator cylinder body 411 is internal be hollow-core construction, and it is internal that described accumulator plunger 412 is placed in described accumulator cylinder body 411, described accumulator plunger 412 external diameter size and described accumulator cylinder body 411 internal diameter is in the same size and be interference fits；As shown in Figure 6, described accumulator cylinder body 411 top inner wall arranges the flash groove 4111 of an annular, described flash groove 4111 is outside arranges an overflow pipe 4112, described flash groove 4111 is for collecting the injection moulding melt overflowed from the gap between described accumulator plunger 412 and described accumulator cylinder body 411 inwall, and discharge via described overflow pipe 4112, fall in garbage collection groove, it is prevented that overflow material arbitrarily drippage, equipment of making dirty；Described buffering accumulator 41 is outside is additionally provided with heater, for described injection moulding melt continuous heating, making the described injection moulding melt moment be kept molten by.
As shown in Figure 6, described storage is penetrated and is provided with oil hydraulic cylinder cylinder body 421, storage piston rod 422 and connecting plate 423 on oil hydraulic cylinder 42；Described accumulator plunger 412 end is connected with the connecting plate 423 being positioned at described storage and penetrating oil hydraulic cylinder 42 top, and connecting portion is positioned at the center of described connecting plate 423；Described storage is penetrated oil hydraulic cylinder 42 and described buffering accumulator 41 lateral symmetry is provided with two oil hydraulic cylinder cylinder bodies 421, piston rod 422 is stored up in two each clampings one of described oil hydraulic cylinder cylinder interior, storage piston rod 422 end described in two is fixing with described connecting plate 423 respectively to be connected, and connecting portion is positioned at the both sides that described accumulator plunger 412 is symmetrical with described connecting plate 423 link position；Adopt double; two symmetrically arranged form of oil hydraulic cylinder, bigger thrust can be provided, accelerate the expulsion efficiency of described injection moulding melt, reduce bubble to produce, and symmetrically arranged storage piston rod uniform force, structure is more stable, reduces the use abrasion that oil hydraulic cylinder is penetrated in described storage and described buffering accumulator causes because of discontinuity, increases the service life.
One of them oil hydraulic cylinder cylinder body 421 connects a position-measurement device, for showing the jack-up height of described accumulator plunger 412；Described position-measurement device also can connect a sensor, the jack-up height of accumulator plunger 412 described in real-time remote monitoring；Described storage is penetrated and also can be connected a remote location measurement apparatus on oil hydraulic cylinder, and described remote location measurement apparatus cushions the storing amount of accumulator described in real-time remote monitoring.
Include a storage and penetrate gate valve seat 431, storage as it is shown in fig. 7, gate valve 43 is penetrated in storage and penetrate valve core for gate valve 432；Described storage is penetrated and is provided with first passage 4311 and second channel 4312 on gate valve seat 431, and described first passage 4311 is all connected with described accumulator cylinder body 411 inner space with second channel 4312 top；Described storage is penetrated and is provided with doubled via 4321 and three through holes 4322 on valve core for gate valve 432, as shown in Figure 8, Figure 9, described doubled via 4321 can realize the switching of conducting state and nonconducting state along with the movement of valve core for gate valve 432 is penetrated in described storage, when conducting state, described doubled via 4321 is in order to introduce described passage 45 by described injection moulding melt；Described three through holes 4322 can realize the switchings of threeway state and two logical states along with the movement of valve core for gate valve 432 is penetrated in described storage, when two logical states, described three through holes 4322 realize described storage and penetrate valve core for gate valve 432 and described storage and penetrate the conducting of gate valve seat 431, described three through hole 4322 tops and described storage are penetrated the second channel 4312 arranged on gate valve seat 431 and are turned on, and bottom and described passage 45 turn on；When threeway state, increase the entrance receiving described injection moulding melt；Described three through hole 4322 one end are connected with described driving valve 35 port in described compounding structure, and top and described storage are penetrated the first passage 4311 arranged on gate valve seat 431 and turned on, and bottom and described passage 45 turn on.Gate valve is penetrated in the storage adopting this kind of form, make described buffering accumulator 41 and the conducting of described passage 45 moment, owing to injection moulding melt has certain toughness, adopt two passages to be connected with described buffering accumulator 41 and virtually described buffering accumulator 41 is divided into two parts, during storing state, described injection moulding melt is made to flow into from first passage 4311, virgin material majority occupy first passage 4311 top, during non-storing state, described injection moulding melt is made to flow out from second channel 4312, now old material majority flows down from second channel 4312, thus the old material reduced in buffering accumulator overstocks.
As shown in Figure 7, described storage is penetrated gate valve oil cylinder 44 and is included storage and penetrate gate valve cylinder block 441 and gate valve cylinder putter 442 is penetrated in storage, described storage is penetrated gate valve cylinder putter 442 and is penetrated valve core for gate valve 432 with described storage and be connected, and drives described storage to penetrate valve core for gate valve 432 and moves, carries out conducting state switching.
Described injection gate valve 46 includes injection gate valve seat 461 and injection valve core for gate valve 462；When described injection valve core for gate valve 462 is positioned at position as shown in Figure 8, described injection gate valve 46 is closed, the passage being attached thereto is not turned on, when described injection valve core for gate valve 462 is positioned at position as shown in Figure 10, described injection gate valve 46 is opened, top and described passage 45 turn on, and bottom turns on injection structure.
Described injection gate valve oil cylinder 47 includes injection gate valve cylinder block 471 and injection gate valve cylinder putter 472, described injection gate valve cylinder putter 472 is connected with described injection valve core for gate valve 462, described injection valve core for gate valve 462 is driven to move, it is achieved the open and close of described injection gate valve 46.
Described storage is penetrated and is also respectively provided with at least 1 heater on gate valve 43, described passage 45 and described injection gate valve 46, for described injection moulding melt continuous heating, making the described injection moulding melt moment be kept molten by.
Described storage is penetrated and is also respectively provided with temperature-sensing element on gate valve 43 and described injection gate valve 46, for the temperature conditions in real-time monitoring tubular road.
Described storage is penetrated and is respectively arranged with cooling water pipeline on gate valve cylinder block 441 and described injection gate valve cylinder block 471, for cylinder body is cooled down, it is to avoid temperature is too high to be caused cylinder block deformation and scalds operator.
Described storage is penetrated and is additionally provided with protective cover outside transformational structure 4, is used for preventing operator from surprisingly touching and causes scald.
Being continuous feeding state during due to described compounding arrangement works, can continuously extrude described injection moulding melt, and injection structure is service intermittent state, often injects after once, mould all can have one period of dwell time.So needing for successively arranging an interim storage space for the described injection moulding melt come.When transformational structure is penetrated in the described storage of inflow of described injection moulding melt, if described injection structure charge is complete, then described injection gate valve 46 is closed under the drive of described injection gate valve oil cylinder 47, simultaneously, described storage is penetrated the drive that gate valve 43 penetrates gate valve oil cylinder 44 in described storage and is moved to position as shown in Figure 9, after described passage 45 is full of by described injection moulding melt, then it is internal to be upwards filled with described buffering accumulator 41 via described first passage 4311, carries out interim storing；If the injection of described injection structure is complete, then described injection gate valve 46 is opened under the drive of described injection gate valve oil cylinder 47, simultaneously, described storage is penetrated the drive that gate valve 43 penetrates gate valve oil cylinder 44 in described storage and is moved to position as shown in Figure 7, the injection moulding melt that the conveying of described compounding structure comes flows in described passage 45 via described doubled via 4321, meanwhile, the injection moulding melt of described buffering accumulator 41 storage inside is penetrated under the pressurization of oil hydraulic cylinder 42 in described storage, flows in described passage 45 via second channel 4312 and three through holes 4322.In actual production process, one time buffer memory storing terminates, described injection moulding melt flows out from described buffering accumulator 41, but owing to described injection moulding melt viscosity is bigger, have injection moulding melt described in fraction at described buffering accumulator 41 internal residual, when new described injection moulding melt is filled with described buffering accumulator 41 from described first passage 4311, the described injection moulding melt of residual will have part to be pressed against described second channel 4312 top, when buffer memory storing terminates, the described injection moulding melt of part residual flows out via second channel 4312, so circulation, the outmoded injection moulding melt of residual will be substituted by new injection moulding melt, make described injection moulding melt by exchange turnover in Liang Gefa road, reduce old material and penetrate the residence time in transformational structure in described storage.
It is that described compounding structure successively arranges an interim storage space for the described injection moulding melt come that transformational structure is penetrated in described storage, in the industrial production, considerably increase production efficiency, avoid the infringement that equipment is caused by repeatedly starting and stopping, avoid the heating repeatedly of described injection moulding melt is caused the waste of the energy simultaneously.
Embodiment 5
Carbon fiber forming equipment as described above, the present embodiment is different from part and is in that, as shown in figure 11, described multi-stage injection structure 5 includes an injection structure body, and it has been used for the injection process of injection moulding melt；Described injection structure body includes an injection accumulator 52, and it is for storing the described injection moulding melt of desired volume；Described multi-stage injection structure 5 also includes injection cylinder 51, injection putter 53, feeding and discharging base 54, injection catheter 55, check-valves 56, injection nozzle 57；
Described injection cylinder 51 includes injection cylinder cylinder body 511, injection cylinder piston rod 512, injection cylinder piston rod slide holder 513, described injection cylinder piston rod 512 one end is positioned in described injection cylinder cylinder body 511, the movement of described injection cylinder piston rod 512 is controlled by controlling injection flow, owing to described injection cylinder piston rod 512 is conducted oneself with dignity bigger, and arrange for horizontal direction, easily cause sagging, therefore described injection cylinder piston rod slide holder 513 is connected at described injection cylinder piston rod 512 other end, prevent its sagging causing from using abrasion for supporting described injection cylinder piston rod 512.
It is internal that described injection putter 53 is placed in described injection accumulator 52, and described injection cylinder piston rod 512 connects described injection putter 53, and described injection cylinder piston rod 512 external diameter size is in the same size with described injection accumulator 52 internal diameter and be interference fits.
Described injection accumulator 52 one end connects described feeding and discharging base 54, and described feeding and discharging base 54 is used for drawing
Enter described injection moulding melt, and the described injection moulding melt in described injection accumulator is injected discharge；Described enter
Discharge base includes feed pipe 541 and drainage conduit 542, described feed pipe 541 and over-injected gate valve 46
The mouth of pipe is connected, and is used for charge in described injection accumulator 52；Described drainage conduit 542 is for by institute
State injection accumulator 52 in described injection moulding melt injection discharge, described drainage conduit 542 run through described in enter
Discharge base 54.
Described feeding and discharging base 54 other end is connected with described injection catheter 55, described injection catheter 55 other end connects described check-valves 56, described check-valves 56 one-way conduction, is reversely not turned on, prevent described injection moulding melt from producing to flow backwards after being injected into mould, affect injection mo(u)lding.
Being socketed described injection nozzle 57 in described check-valves 56, injection orifice reserved on described injection nozzle 57 and mould abuts against, and injection moulding melt is injected mould inside.Described injection nozzle 57 is outside is provided with nozzle protective cover, it is prevented that injection nozzle 57 occurs to eject high-temp liquid during leakage and staff is damaged.
Described injection cylinder piston rod 512 is provided with displacement measurement device, is used for showing described injection cylinder piston rod 512 location, and then indirectly understands the charging situation of described injection accumulator 52；Described displacement measurement device also can connect a sensor, the shift position of injection cylinder piston rod 512 described in real-time remote monitoring.
Position, described injection putter 53 leading section arranges the flash groove 5121 of an annular, described injection accumulator 52 is outside arranges an overflow pipe 521, described flash groove 5121 is for collecting the injection moulding melt overflowed from the gap between described injection putter 53 and described injection accumulator 52 inwall, when the annular flash groove 5121 on described injection putter 53 moves to the position corresponding with described overflow pipe 521, waste material is discharged via described flash groove 5121, fall in garbage collection groove, prevent from overflowing material arbitrarily drippage, equipment of making dirty.
Described injection accumulator 52 is outside is additionally provided with at least one heater, for described injection moulding melt continuous heating, making the described injection moulding melt moment be kept molten by.
It is additionally provided with protective cover outside described injection accumulator 52, is used for preventing operator from surprisingly touching and causes scald.
Described injection catheter 55 is outside is provided with at least one heater, for described injection moulding melt continuous heating, making the described injection moulding melt moment be kept molten by.
It is additionally provided with protective cover outside described injection catheter 55, is used for preventing operator from surprisingly touching and causes scald.
Being additionally provided with a material drum supporting device 581 in described multi-stage injection structure 5, it is used for supporting described multi-stage injection structure 5 and driving described multi-stage injection structure 5 linearly to move；Described material drum supporting device 581 includes support column and pulley, and described pulley linearly can slide in base plane.
For penetrating shifting base below described multi-stage injection structure 5, it is used for supporting whole described multi-stage injection structure 5, described in penetrate shifting base be provided with slide rail, be provided with slide block bottom described multi-stage injection structure 5, described slide block can slide along described slide rail.
Described injection cylinder 51 controls the movement of described injection cylinder piston rod 512 by controlling injection flow, described injection cylinder piston rod 512 drives described injection putter 53 to move, it is internal that described injection putter 53 is placed in described injection accumulator 52, described injection accumulator 52 one end connects described feeding and discharging base 54, described feeding and discharging base 54 other end is connected with described injection catheter 55, described injection catheter 55 other end connects described check-valves 56, is socketed described injection nozzle 57 in described check-valves 56；When described injection moulding melt flows into described injection accumulator 52 inside via the feed pipe 541 of described feeding and discharging base 54, described injection moulding melt promotes described injection putter 53 posteriorly to move, when the described injection moulding melt capacity within described injection accumulator 52 reaches to inject required capacity, described injection cylinder 51 drives described injection cylinder piston rod 512, and then drive described injection putter 53 to extrude described injection moulding melt, make described injection moulding melt via the drainage conduit 542 of described feeding and discharging base 54, described injection catheter 55, described check-valves 56 and described injection nozzle 57 quickly penetrate.After pressurize after a while, described injection moulding melt continues to flow into the feed pipe 541 of described feeding and discharging base 54, circulates next time.In the process, described injection cylinder piston rod 512 being provided with displacement measurement device, the moment moves along with described injection cylinder piston rod 512, shows the charging situation of described injection accumulator 52.
Embodiment 6
Carbon fiber forming equipment as described above, the present embodiment is different from part and is in that, as shown in Figure 1, described mould-locking structure 6 is used for fixedly mounting mould, and when described injection structure is injected, provide clamping force to described mould, it is simple to described injection moulding melt is fixed-type.
Embodiment 7
Carbon fiber forming equipment as described above, the present embodiment is different from part and is in that, described carbon fiber forming equipment is used for processing the injected plastics material of carbon fiber-containing material, including:
Described compounding structure, it is sheared, heats in order to being carried out by formula materials so that it is reach molten condition, and after the carbon fibre material of continuous morphology is sheared with the described formula materials of molten condition compounding formation injection moulding melt；
Described multi-stage injection structure, it is in order to, after described injection moulding melt capacity reaches setting value, to inject described injection moulding melt；
Transformational structure is penetrated in described storage, and it is in order to when described multi-stage injection structure is closed, to store described injection moulding melt temporarily；When described multi-stage injection structure is opened, described storage is penetrated the described injection moulding melt in transformational structure and described compounding structure and sends into described multi-stage injection structure.
A kind of technique utilizing above-mentioned carbon fiber forming equipment to produce carbon fiber product, idiographic flow is as follows:
S1: formula materials is measured according to formula proportion, and throw in described formula materials in proportion；
S2: formula materials is sheared, heats so that it is reach molten condition；
S3: throw in continuous fiber；
S4: shear continuous fiber so that it is form fiber fragment, mixes with the formula materials of molten condition simultaneously, forms injection moulding melt；If injection structure is closed, then carry out step S5, if injection structure is opened, then carry out step S6；
S5: described injection moulding melt is delivered into storage and penetrates in exchanging structure, if injection structure is opened, then stops step S5 then carries out step S6；
S6: described injection moulding melt is transported in injection structure；
S7: after described injection moulding melt capacity reaches to set, injection.
This technological process is based on the said equipment and realizes, but is not limited to based on the said equipment.
The heating process of described step S2, enter into injecting step from described material to be processed to complete to be equipped with corresponding heater, making the described injection moulding melt moment be in molten condition, the heating temperature range of described step S2 is 150 degree of-500 degree, and temperature is partition heating.
Described step S5, S6 extrusion, pressure limit is 0-15 MPa；The injection process of described step S7, pressure limit is 0-300 MPa.
The molding cycle of described step S1-S7 is 10 seconds-300 seconds.
The injection speed of described step S7 is 0-500 mm/second.
Described formula materials includes: polyamide, polyolefin, thermoplastic polyester, Merlon, high performance engineering plastics or other resins for universal use, polyether-ether-ketone, polyphenylene sulfide, Noryl or Polyetherimide, polrvinyl chloride, acrylonitrile-butadiene-styrene copolymer, polystyrene or high impact polystyrene.
The foregoing is only presently preferred embodiments of the present invention, be merely illustrative for the purpose of the present invention, and nonrestrictive.Those skilled in the art is understood, and it can be carried out many changes in the spirit and scope that the claims in the present invention limit, amendment, even equivalence, but falls within protection scope of the present invention.
Claims (9)
1. a multi-stage injection structure, including: an injection structure body, it has been used for the injection process of injection moulding melt；Described injection structure body includes:
One injection accumulator, it is for storing the described injection moulding melt of desired volume；
It is characterized in that, described multi-stage injection structure also includes:
One feeding and discharging base, it is used for introducing described injection moulding melt, and the described injection moulding melt in described injection accumulator is injected discharge；Described feeding and discharging base includes: a feed pipe and a drainage conduit,
Described feed pipe, it is for introducing described injection accumulator by described injection moulding melt；
Described drainage conduit, it is discharged for being injected by the described injection moulding melt in described injection accumulator, and described drainage conduit runs through described feeding and discharging base.
2. multi-stage injection structure as claimed in claim 1, it is characterised in that described multi-stage injection structure also includes an injection putter, and it is discharged in order to promote described injection moulding melt；Arranging an annular flash groove on described injection putter or described injection accumulator, it is in order to collect the described injection moulding melt of spilling；Arranging an overflow pipe with described annular flash groove opposite position place in described injection accumulator, it is for discharging the described injection moulding melt that described annular flash groove is collected.
3. multi-stage injection structure as claimed in claim 1, it is characterised in that described multi-stage injection structure also includes:
One injection cylinder, it is with thinking that injection process provides power；Described injection cylinder includes:
One injection cylinder piston rod, it is in order to promote described injection putter；
One injection cylinder piston rod slide holder, it is used for supporting described injection cylinder piston rod.
4. multi-stage injection structure as claimed in claim 3, it is characterised in that being provided with displacement measurement device on described injection cylinder piston rod, it is used for showing described injection cylinder piston rod location.
5. the multi-stage injection structure as described in as arbitrary in claim 4, it is characterised in that described multi-stage injection structure also includes: an injection catheter, and it is used for turning on described drainage conduit.
6. the multi-stage injection structure as described in as arbitrary in claim 1-5, it is characterised in that described multi-stage injection structure also includes at least one heater, it is for described injection moulding melt continuous heating.
7. the multi-stage injection structure as described in as arbitrary in claim 1-4, it is characterised in that described multi-stage injection structure also includes: a check-valves, described check-valves one-way conduction, it is used for preventing described injection moulding melt from producing to flow backwards after being injected into mould.
8. multi-stage injection structure as claimed in claim 4, it is characterised in that being additionally provided with a material drum supporting device in described multi-stage injection structure, it is used for supporting described multi-stage injection structure and driving described multi-stage injection structure linearly to move.
9. an injection-moulding device, it includes a storage and penetrates transformational structure, a compounding structure, it is characterised in that described injection-moulding device also includes having the arbitrary described multi-stage injection structure of claim 1-5.
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| CN201610260843.4A CN105751454B (en) | 2016-04-25 | 2016-04-25 | A kind of multi-stage injection structure and the injection-moulding device with the structure |
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| CN101077611A (en) * | 2007-05-31 | 2007-11-28 | 华南理工大学 | Pulse type shock processing on-line compound injection molding method and its equipment |
| CN101716816A (en) * | 2009-12-04 | 2010-06-02 | 山西汾西机电有限公司 | Extrusion-injection type plastic injection molding machine |
| CN205705149U (en) * | 2016-04-25 | 2016-11-23 | 宁波伯乐智能装备有限公司 | A kind of multi-stage injection structure and there is the injection-moulding device of this structure |
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2016
- 2016-04-25 CN CN201610260843.4A patent/CN105751454B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5123833A (en) * | 1991-04-01 | 1992-06-23 | Parker John C | Fast cycle plasticator/injector unit for molding machines |
| CN101077611A (en) * | 2007-05-31 | 2007-11-28 | 华南理工大学 | Pulse type shock processing on-line compound injection molding method and its equipment |
| CN101716816A (en) * | 2009-12-04 | 2010-06-02 | 山西汾西机电有限公司 | Extrusion-injection type plastic injection molding machine |
| CN205705149U (en) * | 2016-04-25 | 2016-11-23 | 宁波伯乐智能装备有限公司 | A kind of multi-stage injection structure and there is the injection-moulding device of this structure |
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