CN108000823A - A kind of chemistry fretting map injection-moulding device and chemical micro foaming injection moulding technique - Google Patents
A kind of chemistry fretting map injection-moulding device and chemical micro foaming injection moulding technique Download PDFInfo
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- CN108000823A CN108000823A CN201711457658.5A CN201711457658A CN108000823A CN 108000823 A CN108000823 A CN 108000823A CN 201711457658 A CN201711457658 A CN 201711457658A CN 108000823 A CN108000823 A CN 108000823A
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- 238000001746 injection moulding Methods 0.000 title claims abstract description 70
- 238000000034 method Methods 0.000 title claims abstract description 68
- 239000000126 substance Substances 0.000 title claims abstract description 65
- 238000005187 foaming Methods 0.000 title claims description 42
- 238000002347 injection Methods 0.000 claims abstract description 136
- 239000007924 injection Substances 0.000 claims abstract description 136
- 238000009415 formwork Methods 0.000 claims abstract description 86
- 238000000465 moulding Methods 0.000 claims abstract description 55
- 230000033001 locomotion Effects 0.000 claims abstract description 14
- 230000000149 penetrating effect Effects 0.000 claims abstract description 13
- 239000010720 hydraulic oil Substances 0.000 claims description 56
- 239000000463 material Substances 0.000 claims description 50
- 238000002844 melting Methods 0.000 claims description 48
- 230000008018 melting Effects 0.000 claims description 48
- 238000004513 sizing Methods 0.000 claims description 42
- 239000003921 oil Substances 0.000 claims description 17
- 239000007788 liquid Substances 0.000 claims description 16
- 230000003068 static effect Effects 0.000 claims description 12
- 239000004088 foaming agent Substances 0.000 claims description 11
- 239000004033 plastic Substances 0.000 claims description 10
- 229920003023 plastic Polymers 0.000 claims description 10
- 230000003321 amplification Effects 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 6
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 6
- 239000000243 solution Substances 0.000 claims description 5
- 239000003292 glue Substances 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- 238000000280 densification Methods 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims description 2
- 239000000047 product Substances 0.000 claims 3
- 238000012856 packing Methods 0.000 claims 1
- 239000011265 semifinished product Substances 0.000 claims 1
- 238000011112 process operation Methods 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 208000002925 dental caries Diseases 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
Classifications
-
- 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
- B29C45/54—Means for plasticising or homogenising the moulding material or forcing it into the mould using injection ram or piston and plasticising screw
-
- 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
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/34—Auxiliary operations
- B29C44/3442—Mixing, kneading or conveying the foamable material
- B29C44/3446—Feeding the blowing agent
-
- 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
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/34—Auxiliary operations
- B29C44/36—Feeding the material to be shaped
- B29C44/38—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length
- B29C44/42—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length using pressure difference, e.g. by injection or by vacuum
- B29C44/422—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length using pressure difference, e.g. by injection or by vacuum by injecting by forward movement of the plastizising screw
-
- 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
- B29C45/1742—Mounting of moulds; Mould supports
-
- 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
- B29C45/64—Mould opening, closing or clamping devices
- B29C45/67—Mould opening, closing or clamping devices hydraulic
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
- B29L2031/3005—Body finishings
- B29L2031/3008—Instrument panels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
- B29L2031/3005—Body finishings
- B29L2031/3014—Door linings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
- B29L2031/3044—Bumpers
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The present invention provides a kind of simple in structure, there is secondary mould closing function simultaneously to provide crack mould to move, injection speed it is fast can meet the molding injection-moulding device of fretting map, including the moving platen being arranged in support platform, mold head plate, band-type brake plate, brother's woods column, shifting formwork pressure cylinder and melten gel injection mechanism, pressuring plate is additionally provided with front side of molding head plate, on front mold is fixed on front side of pressuring plate, high pressure clamping pressure cylinder is equipped with molding head plate, pressuring plate is connected by high pressure clamping pressure cylinder, pressuring plate sets injection head, it is equipped between melten gel injection mechanism and molding head plate and penetrates moving device, melten gel injection mechanism is set to connect injection head by penetrating moving device.Present invention simultaneously provides the period of motion is short, twice-die-opening control accuracy is high, the steady controllable chemical fretting map forming method of injection process operation.
Description
Technical field
Patent category injection molding apparatus of the present invention and application field, are related to a kind of special injection-moulding device of chemical fretting map and one
The new fretting map moulding process of kind.
Developing background
According to investigations, automobile overall weight often reduces double centner, and fuel consumption per hundred kilometers can reduce 0.3-0.6 liters.With country the
Two-stage fuel oil index 5L/100Km requirements, and the promotion and popularization of electric automobile, automotive material lightweight is into industry tide
Stream.In automobile non-metal material parts lightweight field, chemical micro-foaming material has widespread adoption in automotive upholstery,
It is mainly major vapour in the positions such as the car door interior lining panel of automobile, instrument board, rear inner door scaleboard, bottom backplate, chemical fretting map technology
The technical way that depot business competitively uses.
Chemical fretting map (Microcellular Foaming) refers to that, using thermoplastic as matrix, chemical foaming agent is
Source of the gas, supercriticality is formed by self-locking technique gas, is injected after die cavity under the action of gas diffusion internal pressure, is made product
Intermediate distribution size theory foams from the closed porosity of ten a few to tens of microns.At present, micro foaming injection moulding technological break-through
Many limitations of traditional injection moulding, on the basis of basic guarantee product properties does not reduce, can substantially mitigate part weight and into
The type cycle, and there is the features such as internal stress and warpage are small, and glacing flatness is high, does not shrink, dimensionally stable.Chemical fretting map technology will
Injection molding machine is asked to have higher injection speed and high die sinking position precision, it is domestic still without the production of chemical micro foaming injection moulding
Industry equipment and technology, the common chemical fretting map injection molding machine of in the market are substantially import injection molding machine or full electric injection molding machine
The world, price is extremely expensive, so a chemical fretting map injection-moulding device of exploitation and moulding process application prospect are very wide.
The content of the invention
The technical problem to be solved in the present invention is to provide it is a kind of it is simple in structure, there is secondary mould closing function simultaneously to provide crack mould
Moved, injection speed is fast can meet the molding injection-moulding device of fretting map.
Another technical problem to be solved by the present invention is that providing, the period of motion is short, twice-die-opening control accuracy is high, injection mistake
Journey operates steadily controllable chemical fretting map forming method.
In order to solve a kind of chemical fretting map injection-moulding device of previous technical problem, including it is arranged on dynamic in support platform
Template, molding head plate, band-type brake plate, brother woods column, shifting formwork pressure cylinder and melten gel injection mechanism, it is flat that molding head plate is fixed at support
On platform, moving platen is arranged in the support platform on front side of molding head plate, and moving platen connects conjunction by brother woods column with shifting formwork pressure cylinder
Die plate makees relative axial movement, band-type brake plate connection brother's woods column, and melten gel injection mechanism is connected on rear side of molding head plate, and rear mold is solid
It is scheduled on moving platen, wherein：Pressuring plate is additionally provided with front side of molding head plate, front mold molds head plate on being fixed on front side of pressuring plate
In be equipped with high pressure clamping pressure cylinder, pass through high pressure clamping pressure cylinder and connect pressuring plate, pressuring plate sets injection head, melten gel injection
It is equipped between mechanism and molding head plate and penetrates moving device, melten gel injection mechanism is connected injection head by penetrating moving device.
A kind of above-mentioned chemical fretting map injection-moulding device, melten gel injection mechanism include plasticizing motor, penetrate platform movable plate, injection
Pressure cylinder, penetrate platform foreboard, hopper, rubber melting cylinder, injection screw, penetrate moving device, melt force sensor, and rubber melting cylinder front end is interted fixed
Position in head plate is molded, rear end by penetrating platform foreboard running fix in support platform, penetrate platform movable plate running fix in She Tai
In support platform on rear side of foreboard, plasticizing motor, which is arranged on, to be penetrated on platform movable plate, and injection screw is interspersed in rubber melting cylinder, its rear end
The plasticizing motor on platform movable plate is penetrated in connection, is penetrated platform movable plate and is connected by injection pressure cylinder with penetrating platform foreboard.
A kind of above-mentioned chemical fretting map injection-moulding device, molding head plate, which is equipped with, adjusts limited block, adjusts limited block
The distance between pressuring plate is △ L.
A kind of above-mentioned chemical fretting map injection-moulding device, further includes front mold, rear mold, reaction magnetic ring, no-contact electronic
Ruler, wherein no-contact electronic ruler are fixed in rear mold, and rear mold is fixed on moving platen, and reaction magnetic ring is fixed on front mold
On, front mold is fixed on pressuring plate, and no-contact electronic ruler is connected with control system.
A kind of above-mentioned chemical fretting map injection-moulding device, melt force sensor, Feng Zui and quiet are equipped with injection head
State mixer.
A kind of above-mentioned chemical fretting map injection-moulding device, shifting formwork pressure cylinder include shifting formwork pump and shifting formwork purt core, shifting formwork purt
Core is arranged in shifting formwork pump, forms shifting formwork rodless cavity and shifting formwork rod chamber, and shifting formwork pump is fixed in molding head plate, shifting formwork purt
Core is fixed on moving platen by connecting plate, and shifting formwork rodless cavity is connected by controlling switch and power unit 1, and shifting formwork rod chamber leads to
Cross controlling switch and power unit 1 connects.
A kind of above-mentioned chemical fretting map injection-moulding device, high pressure clamping pressure cylinder are included in high pressure pump and high pressure pump
High pressure purt core, high pressure pump are arranged in molding head plate, and high pressure purt core is connected with pressuring plate, and high pressure purt core and molding head plate are formed
High pressure rodless cavity and high pressure rod chamber, high pressure noon rod cavity are connected by controlling switch and power unit 2, and high pressure rod chamber passes through control
System switch is connected with power unit.
A kind of above-mentioned chemical fretting map injection-moulding device, moving platen, pressuring plate and molding head plate are installed in support platform
Face, brother woods column are installed on above molding head plate, and moving platen can be axially moved along brother woods column.
A kind of above-mentioned chemical fretting map injection-moulding device, is machined with annular groove on brother woods column and band-type brake plate, can be mutually twisted.
A kind of above-mentioned chemical fretting map injection-moulding device, further includes the controlling switch of control system and its control connection and moves
Power unit 1 and power unit 2, are also connected with envelope nozzle, melt force sensor and plasticizing motor.
A kind of above-mentioned chemical fretting map injection-moulding device, injection pressure cylinder include the injection in injection pump and injection pump
Purt core, injection pump, which is arranged on, to be penetrated in platform foreboard, and platform movable plate, injection purt core and injection pump are penetrated in the connection of injection purt core output terminal
Form injection rod chamber and injection rodless cavity, injection rod chamber are connected by controlling switch with accumulator, meanwhile, it is also by control
System switch is connected with power unit 2, and injection rodless cavity is connected by controlling switch and power unit 2.
A kind of above-mentioned chemical fretting map injection-moulding device, penetrates platform foreboard and penetrates platform movable plate and be installed on and penetrate on cushion plate, and
And can be axially moved along cushion plate is penetrated, penetrate cushion plate and be fixed on above support platform.
A kind of above-mentioned chemical fretting map injection-moulding device, power unit 1 are joined by controlling switch and controlling switch with band-type brake
Dynamic device connection.
A kind of above-mentioned chemical fretting map injection-moulding device, power unit 2 are also associated with accumulator, pass through controlling switch therebetween
Connection.
Following parts are included using a kind of chemical fretting map former of above-mentioned technical proposal：It is plasticized motor, She Tai
Movable plate, injection purt core, injection pump, penetrate platform foreboard, hopper, rubber melting cylinder, injection screw, penetrate moving device, melt pressure sensing
Device, static mixer, head, Feng Zui, shifting formwork purt core, shifting formwork pump, brother woods column, connecting plate, band-type brake plate, support platform, dynamic model
Plate, pressuring plate, adjust limited block, high pressure purt core, molding head plate, power unit, power unit, control system, penetrate cushion plate, store
Energy device, further includes controlling switch, and band-type brake linkage；Injection purt core and injection pump form injection rod chamber and injection without bar
Chamber, injection rod chamber are connected with power unit 2 and accumulator respectively by controlling switch and controlling switch, and injection rodless cavity passes through
Controlling switch is connected with power unit；Shifting formwork purt core and shifting formwork pump form shifting formwork rodless cavity and shifting formwork rod chamber, and shifting formwork is without bar
Chamber is connected by controlling switch and power unit 1, and shifting formwork rod chamber is connected by controlling switch and power unit 1, shifting formwork pump
It is fixed in molding head plate, shifting formwork purt core is fixed on moving platen by connecting plate；High pressure purt core is connected with pressuring plate, high pressure purt
Core and molding head plate formation high pressure rodless cavity and high pressure rod chamber, high pressure rod chamber are connected by controlling switch power unit 2, high
Pressure rodless cavity is connected by controlling switch and power unit 2；Power unit 2 is connected by controlling switch with accumulator；Power list
Member 1 is connected by controlling switch with band-type brake linkage；Control system connects each controlling switch and two power units, is also connected with
Seal mouth, melt force sensor and plasticizing motor；Penetrate platform foreboard and penetrate platform movable plate and be installed on and penetrate on cushion plate, and can edge
The axial movement of cushion plate is penetrated, cushion plate is penetrated and is fixed on above support platform；Plasticizing motor, which is installed on, to be penetrated above platform movable plate, and
Connected with injection screw；Melt force sensor, static mixer and envelope nozzle are installed on the-head；Penetrate moving device connection and penetrate platform
Foreboard and pressuring plate；Moving platen, pressuring plate and molding head plate are installed on above support platform, and brother woods column is installed in molding head plate
Face, moving platen can be axially moved along brother woods column；Annular groove is machined with brother woods column and band-type brake plate, can be mutually twisted；Adjust spacing
Block is fixed in molding head plate, highly adjustable；Control system and two power units and accumulator are all fixed on support platform
Above；Wherein melt force sensor is to detect the pressure of melting sizing material in barrel, prevent minute bubbles from decomposing in advance；It is static
Mixer is in order to which minute bubbles in injection process and melting sizing material can be mixed preferably；Envelope nozzle is to melt in order to prevent during melten gel
Melt sizing material outflow, and ensure the space sealing inside barrel, keep the pressure of melting sizing material；Accumulator is to obtain at a high speed
Injection speed, spacing adjusting block are to provide mechanical position limitation when very short time high speed is crack, ensure crack precision；In order to
Close a kind of chemical fretting map former stated and realize chemical fretting map moulding process, further include following parts：Front mold,
Rear mold, reaction magnetic ring, no-contact electronic ruler, plastic material, foaming agent.Wherein no-contact electronic ruler is fixed in rear mold,
Rear mold is fixed on moving platen；Reaction magnetic ring is fixed in front mold, and front mold is fixed on above pressuring plate；No-contact electronic
Ruler is connected with control system, and no-contact electronic ruler and reaction magnetic ring are mainly for the accurate fretting map distance of acquisition.
A kind of chemistry micro foaming injection moulding technique, includes the following steps：
Step (1), melten gel process, by plastic material and foaming agent plasticizing into melting sizing material and minute bubbles, keeps melting glue
Material has certain melt pressure to prevent minute bubbles from resolving into air pocket in rubber melting cylinder；Step (2), molds process, rear mold patch
The firmly high press-fitting mould of front mold；Step (3), injection process, after the completion of high press-fitting mould, will melt sizing material fast injection progressive die
Have die cavity, step (4), foamed process so that front and rear crack a distance of mould, allows pressure release in die cavity, at this time half into
Minute bubbles further swell into air pocket in product；Step (5), mold process, obtain gas be evenly distributed densification foaming system
Product.
In step (1), melten gel process, plastic material and foaming agent resolve into melting by plasticized screw in rubber melting cylinder
Sizing material and minute bubbles, while ensure there is certain pressure value in melting sizing material, prevent minute bubbles from decomposing amplification；Pressure value therein
For 0.1-1.0MPa, it is advisable with 0.5.
In step (2), process is molded, first, moving platen and the movement of rear mold anterior mold direction, when rear mold touch
During front mold so that band-type brake plate, which closes up, embraces brother's woods column；Further, high press-fitting mould, high pressure purt core promote mould before pressuring plate drive
Tool is adjacent to rear mold, and system plays high pressure mold clamping force at this time, and the flank of tooth is adjacent to the flank of tooth after brother's woods band of column groove after band-type brake plate annular groove；
In step (3), injection process, melts after sizing material and minute bubbles are further mixed by static mixer by a high speed
The die cavity that rear mold and front mold are formed is injected, is rapidly filled with die cavity；
In step (4), foamed process, high pressure purt core ribbon move pressuring plate so that front mold to leave rear mold crack a bit of
Distance △ L ', at this time because cavity pressure reduces after crack mould, the minute bubbles in semifinished sheets swell as air pocket；It is therein
Distance △ L ' are advisable with 0.8 in 0.1-2.0mm.
In step (5), mold process, after the completion of cooling, wrap up bubble semifinished sheets sizing complete, band-type brake plate and
Brother's woods column separates；Moving platen and rear mold are moved to away from front mold direction, obtain complete foaming product.
A kind of above-mentioned chemical micro foaming injection moulding technique, in step (1), during melten gel, envelope nozzle is closed, and is plasticized motor
Injection screw is driven to rotate, plastic material and foaming agent resolve into rubber melting cylinder melting sizing material and stingy by plasticized screw
Bubble, hydraulic oil are drawn into injection rodless cavity, and the hydraulic oil in injection rod chamber by controlling switch naturally from power unit 2
Power unit 2 is flow back into by controlling switch, injection screw retreats, while adjustment control switchs, it is ensured that have one in melting sizing material
Fixed pressure value, prevents minute bubbles from decomposing amplification, melting the pressure value of sizing material can be read by solution pressure sensor；Power
Unit 2 also fills high-pressure and hydraulic hydraulic oil by controlling switch to accumulator at the same time.
A kind of above-mentioned chemical micro foaming injection moulding technique, in step (2), controlling switch is opened, and hydraulic oil is from power
Unit 1 enters band-type brake linkage so that band-type brake plate and Ge Lin columns separate；Hydraulic oil is by controlling switch from power unit 1
Into shifting formwork rod chamber, and hydraulic oil flow back into power unit 1 from shifting formwork rodless cavity by controlling switch, at this time shifting formwork purt core
Drive moving platen and the movement of rear mold anterior mold direction.
A kind of above-mentioned chemical micro foaming injection moulding technique, it is non-to connect when rear mold touch front mold in step (3)
Touch electronic ruler and pass through reaction magnetic ring；Hydraulic oil enters band-type brake linkage by controlling switch from power unit 1 so that band-type brake
Plate, which closes up, embraces brother's woods column.
A kind of above-mentioned chemical micro foaming injection moulding technique, in step (2), the driven power unit 2 of high pressure liquid pressure oil passes through
Controlling switch enters high pressure rodless cavity, and the hydraulic oil of high pressure rod chamber flows back to power unit 2, high pressure purt core by controlling switch
Pressuring plate is promoted to drive front mold to be adjacent to rear mold, system plays high pressure mold clamping force at this time, and the flank of tooth is adjacent to after band-type brake plate annular groove
The flank of tooth after brother's woods band of column groove.
A kind of above-mentioned chemical micro foaming injection moulding technique, in step (3), during injection, envelope nozzle is opened, accumulator
High pressure liquid pressure oil enters injection rod chamber by controlling switch, and hydraulic oil is flowed back to from injection rodless cavity by controlling switch
Power unit 2, melting sizing material and minute bubbles are injected at a high speed rear mold and front mold after further being mixed by static mixer
The die cavity of formation；
A kind of above-mentioned chemical micro foaming injection moulding technique, in step (3), melts sizing material and minute bubbles is rapidly filled with
After die cavity, envelope nozzle is closed, and the driven power unit 1 of high pressure liquid pressure oil enters shifting formwork rodless cavity by controlling switch, and hydraulic oil from
Shifting formwork rod chamber flow back into power unit 1 by controlling switch, and the flank of tooth continues after being adjacent to brother's woods band of column groove after making band-type brake plate annular groove
The flank of tooth；
A kind of above-mentioned chemical micro foaming injection moulding technique, in step (4), the driven power unit 2 of high pressure liquid pressure oil passes through
Controlling switch enters high pressure rod chamber, and hydraulic oil flow back into power unit 2, high pressure from high pressure rodless cavity by controlling switch
Purt core ribbon moves pressuring plate so that front mold leaves the crack a small distance △ L ' of rear mold, and no-contact electronic ruler passes through reaction magnetic ring
Detect △ L ', at this time because cavity pressure reduces after crack mould, the minute bubbles in semifinished sheets swell as air pocket.
A kind of above-mentioned chemical micro foaming injection moulding technique, in step (4), high pressure purt core ribbon moves pressuring plate and retracts patch
Limited block is firmly adjusted, the distance between front mold and rear mold are between △ L, with pressuring plate before and spacing adjusting block at this time
Distance △ L are identical, while no-contact electronic ruler detects △ L by reaction magnetic ring, at this time because cavity pressure reduces after die sinking,
Minute bubbles in semifinished sheets swell as air pocket.
A kind of above-mentioned chemical micro foaming injection moulding technique, in step (5), after the completion of cooling, wrap up the half of bubble into
The sizing of product product is completed, and controlling switch is opened, and hydraulic oil enters band-type brake linkage from power unit 1 so that band-type brake plate and
Brother's woods column separates；Hydraulic oil enters shifting formwork rodless cavity by controlling switch from power unit 1, while hydraulic oil passes through controlling switch
Power unit 1 is flow back into from shifting formwork rod chamber, shifting formwork purt core ribbon is moved moving platen and rear mold and moved to away from front mold direction, obtained
To complete foaming product.
Using a kind of chemical micro foaming injection moulding technique of above-mentioned technical proposal, during melten gel, envelope nozzle is closed, and is plasticized motor
Injection screw is driven to rotate, sizing material raw material and foaming agent resolve into rubber melting cylinder melting sizing material and stingy by plasticized screw
Steep, controlling switch and controlling switch are opened at this time, and hydraulic oil enters injection rodless cavity from power unit 2, and has from injection
Rod cavity returns to power unit 2, and injection screw retreats, while adjustment control switchs, it is ensured that there is certain pressure value in melting sizing material,
Prevent minute bubbles from decomposing amplification, melting the pressure value of sizing material can be read by solution pressure sensor, and power unit 2 is also synchronous
To accumulator filling liquid pressure oil；Then, controlling switch is opened, and hydraulic oil enters band-type brake linkage from power unit 1 so that is embraced
Flashboard and Ge Lin columns separate, and hydraulic oil enters shifting formwork rod chamber by controlling switch from power unit 1, and hydraulic oil is from shifting formwork
Rodless cavity returns to power unit 1, and shifting formwork purt core ribbon moves moving platen and the movement of rear mold anterior mold direction at this time；When rear mold is pasted
Firmly during front mold, no-contact electronic ruler passes through reaction magnetic ring；At this time, controlling switch is opened, and hydraulic oil is entered from power unit 1
Band-type brake linkage so that band-type brake plate and Ge Lin columns are held tightly, then, the driven power unit 2 of high pressure liquid pressure oil by controlling switch into
Enter to high pressure rodless cavity, the hydraulic oil of high pressure rod chamber and power unit 2 is flowed back to by controlling switch；High pressure purt core promotes pressuring plate
Rear mold is driven to be adjacent to front mold, system plays high pressure mold clamping force at this time, and the flank of tooth is adjacent to brother's woods band of column groove after band-type brake plate annular groove
The flank of tooth afterwards；It is △ L to adjust the distance between limited block and pressuring plate at this time；During injection, envelope nozzle is opened, the hydraulic pressure of accumulator
Oil enters injection rod chamber by controlling switch, and hydraulic oil flows back to power unit from injection rodless cavity by controlling switch
2, melt the die cavity for injecting that rear mold and front mold are formed after sizing material and minute bubbles are further mixed by static mixer at a high speed；
After melting sizing material and minute bubbles are rapidly filled with die cavity, envelope nozzle is closed, and hydraulic oil is entered from power unit 1 by controlling switch to be moved
Mould rodless cavity, and hydraulic oil flow back into power unit 1 from shifting formwork rod chamber by controlling switch, makes the flank of tooth after band-type brake plate annular groove
Continue to be adjacent to the flank of tooth after brother's woods band of column groove；Meanwhile hydraulic oil enters high pressure rod chamber from power unit 2 by controlling switch, and
And hydraulic oil flow back into power unit 2 from high pressure rodless cavity by controlling switch, high pressure purt core ribbon moves pressuring plate and causes front mold
Rear mold a distance △ L ' are left, while no-contact electronic ruler detects △ L ' by reaction magnetic ring；At this time because after die sinking
Cavity pressure reduces, and the minute bubbles in semifinished sheets swell as air pocket；Another crack feature is as follows：When band-type brake plate annular groove
The flank of tooth continues to be adjacent to after brother's woods band of column groove after the flank of tooth afterwards, and hydraulic oil enters high pressure rod chamber from power unit 2 by controlling switch,
And hydraulic oil flow back into power unit 2 from high pressure rodless cavity by controlling switch, and high pressure purt core ribbon moves pressuring plate and causes preceding mould
Tool leaves rear mold, and pressuring plate retracts and touch adjusting limited block, and the distance between front mold and rear mold are △ L at this time, at the same time
No-contact electronic ruler detects △ L by reaction magnetic ring；It is small in semifinished sheets at this time because cavity pressure reduces after die sinking
Bubble swells as air pocket；After the completion of cooling, controlling switch is opened, and hydraulic oil enters band-type brake linkage from power unit 1,
So that band-type brake plate and Ge Lin columns separate；Then, hydraulic oil enters shifting formwork rodless cavity, and liquid by controlling switch from power unit
Pressure oil returns to power unit by controlling switch from shifting formwork rod chamber, and shifting formwork purt core ribbon moves moving platen and rear mold to away from preceding mould
Have direction movement, obtain complete foaming product.
A kind of chemical fretting map injection-moulding device and moulding process of the present invention, can be car thin-wall product such as car door, protect
Dangerous thick stick, instrument board etc. provide suitable foaming product, obtain that internal stress is small while weight is mitigated, the high modeling of bending modulus
Material products, such as extensive use, the popularization of the lightweight development for automobile industry is very helpful, is also expected to other plastics
Industry market is promoted.
Brief description of the drawings
Below in conjunction with the embodiment in attached drawing, the present invention is described in further detail, but does not form to the present invention
Any restrictions.
Fig. 1 is the cross-sectional view of the present invention；
The cross-sectional view that Fig. 2 is the present invention further illustrates；
Fig. 3 is the P of Fig. 1 cross-section structures to schematic diagram；
Fig. 4 is the process schematic representation that band-type brake plate and Ge Lin columns separately act in Fig. 3；
Fig. 5 is the cross section A-A enlarged diagram of band-type brake plate and Ge Lin column separate structures in Fig. 4；
Fig. 6 is melten gel of the present invention, energy storage, the process schematic representation of mould assembling action；
Fig. 7 is the process schematic representation of high pressure mould assembling action of the present invention；
Fig. 8 is the process schematic representation of band-type brake plate and Ge Lin column closing movements in Fig. 3；
Fig. 9 is the section B-B enlarged diagram of band-type brake plate and Ge Lin column folding structures in Fig. 8；
Figure 10 is the process schematic representation of accumulator high speed injection action of the present invention；
Figure 11 is the process schematic representation of the crack foaming action of inventive die；
Figure 12 is process schematic representation of the present invention using the crack foaming action of regulation limiting device mould；
Figure 13 is the process schematic representation that foaming product of the present invention is molded, template die sinking acts.
In figure：Shifting formwork pressure cylinder 1a, melten gel injection mechanism 1b, high pressure clamping pressure cylinder 1c, injection pressure cylinder 1d, high pressure purt
Cylinder 1e, plasticizing motor 1, penetrate platform movable plate 2, injection purt core 3, injection pump 4, penetrate platform foreboard 5, hopper 6, rubber melting cylinder 7, injection spiral shell
Bar 8, penetrate moving device 9, melt force sensor 10, static mixer 11, head 12, envelope nozzle 13, shifting formwork purt core 14, shifting formwork pump
15th, brother woods column 16, connecting plate 17, band-type brake plate 18, support platform 19, moving platen 20, pressuring plate 21, adjusting limited block 22, high pressure
Purt core 23, molding head plate 24, power unit 25, power unit 26, control system 27, penetrate cushion plate 28, accumulator 29, injection and have
Rod cavity 30, injection rodless cavity 31, plastic material 32, foaming agent 33, shifting formwork rodless cavity 34, shifting formwork rod chamber 35, high pressure rodless cavity
36th, high pressure rod chamber 37, front mold 38, reaction magnetic ring 39, no-contact electronic ruler 40, rear mold 41, controlling switch 42,43,44,
45th, 46,47,48,49,50,51, band-type brake linkage 52, melting sizing material 53, minute bubbles 54, air pocket 55, foaming product 56.
Embodiment
Refering to shown in Fig. 1~13, a kind of chemistry fretting map injection-moulding device and moulding process, the capital equipment two-plate
Injection molding machine, including be arranged in support platform 19 moving platen 20, molding head plate 24, band-type brake plate 18, brother woods column 16, shifting formwork pressure
Cylinder 1a and melten gel injection mechanism 1b, molding head plate 24 are fixed in support platform 19, and moving platen 20 is arranged on molding head plate
In the support platform 19 of 24 front sides, moving platen 20 is connected molding head plate 24 with shifting formwork pressure cylinder 1a by brother woods column 16 and makees relative axle
To movement, band-type brake plate 18 connects brother woods column 16, and melten gel injection mechanism 1b is connected to 24 rear side of molding head plate, and rear mold 41 is fixed on
On moving platen 20, it is characterised in that：24 front side of molding head plate is additionally provided with pressuring plate 21, and front mold 38 is fixed on the front side of pressuring plate 21
On, mold and high pressure clamping pressure cylinder 1c is equipped with head plate 24, passes through high pressure clamping pressure cylinder 1c connections pressuring plate 21, pressuring plate 21
Injection head 12 is set, is equipped between melten gel injection mechanism 1b and molding head plate 24 and penetrates moving device 9, make to melt by penetrating moving device 9
Glue injection mechanism 1b connection injections head 12.Moving device 9 therein of penetrating is the telescopic hydraulic pressure cylinder controlled by power unit.
Melten gel injection mechanism 1b include plasticizing motor 1, penetrate platform movable plate 2, injection pressure cylinder 1d, penetrate platform foreboard 5, hopper 6,
Rubber melting cylinder 7, injection screw 8, penetrate moving device 9, melt force sensor 10, and 7 front end of rubber melting cylinder, which is interted, is positioned at molding head plate 24
In, rear end by penetrating 5 running fix of platform foreboard in support platform 19, penetrate 2 running fix of platform movable plate and penetrating the rear side of platform foreboard 5
Support platform 19 on, plasticizing motor 1 is arranged on and penetrates on platform movable plate 2, and injection screw 8 is interspersed in rubber melting cylinder 7, its rear end connects
The plasticizing motor 1 penetrated on platform movable plate 2 is connect, platform movable plate 2 is penetrated and is connected by injection pressure cylinder 1d with penetrating platform foreboard 5.
Mold head plate 24 and be equipped with adjusting limited block 22, it is △ to adjust the distance between limited block 22 and pressuring plate 21
L。
Further include front mold 38, rear mold 41, reaction magnetic ring 39, no-contact electronic ruler 40, wherein no-contact electronic ruler 40
It is fixed in rear mold 41, rear mold 41 is fixed on moving platen 20, and reaction magnetic ring 39 is fixed in front mold 38, front mold 38
It is fixed on pressuring plate 21, no-contact electronic ruler 40 and control system 26 connect.
Melt force sensor 10, envelope nozzle 13 and static mixer 11 are equipped with injection head 12.
Shifting formwork pressure cylinder 1a includes shifting formwork pump 15 and shifting formwork purt core 14, shifting formwork purt core 14 is arranged in shifting formwork pump 15,
Shifting formwork rodless cavity 34 and shifting formwork rod chamber 35 are formed, shifting formwork pump 15 is fixed in molding head plate 24, and shifting formwork purt core 14 passes through company
Fishplate bar 17 is fixed on moving platen 20, and shifting formwork rodless cavity 34 is connected by controlling switch 45 and power unit 25, shifting formwork rod chamber
35 are connected by controlling switch 44 and power unit 25.
High pressure clamping pressure cylinder 1c includes the high pressure purt core 23 in high pressure pump 1e and high pressure pump 1e, and high pressure pump 1e is set
Put in head plate 24 is molded, high pressure purt core 23 and pressuring plate 21 connect, and high pressure purt core 23 and molding head plate 24 form high pressure without bar
Chamber 36 and high pressure rod chamber 37, high pressure noon rod cavity 36 are connected by controlling switch 47 and power unit 26, and high pressure rod chamber 37 is logical
Cross controlling switch 46 and power unit 23 connects.
Moving platen 20, pressuring plate 21 and molding head plate 24 are installed on above support platform 19, and brother woods column 16 is installed on molding
Above head plate 24, moving platen 20 can be axially moved along brother woods column 16.
Annular groove is machined with brother woods column 16 and band-type brake plate 18, can be mutually twisted.
Further include 42,43,44,45,46,47,48,49,50,51 and of controlling switch of control system 27 and its control connection
Power unit 25 and power unit 26, are also connected with envelope nozzle 13, melt force sensor 10 and plasticizing motor 1.
Injection pressure cylinder 1d includes the injection purt core 3 in injection pump 4 and injection pump 4, and injection pump 4, which is arranged on, penetrates platform
In foreboard 5, platform movable plate 2 is penetrated in the connection of 3 output terminal of injection purt core, and injection purt core 3 and injection pump 4 form 30 He of injection rod chamber
Injection rodless cavity 31, injection rod chamber 30 are connected by controlling switch 50 and accumulator 29, meanwhile, it is also by controlling switch 51
It is connected with power unit 26, injection rodless cavity 31 is connected by controlling switch 48 and power unit 26.
Penetrate platform foreboard 5 and penetrate platform movable plate 2 and be installed on and penetrate on cushion plate 28, and can be axially moved along cushion plate 28 is penetrated,
Cushion plate 28 is penetrated to be fixed on above support platform 19.
Power unit 25 is connected by controlling switch 42 and controlling switch 43 with band-type brake linkage 52.
Power unit 26 is also associated with accumulator 29, is connected therebetween by controlling switch 49.
A kind of chemical micro foaming injection moulding technique of the present invention, its moulding process include the following steps：
Step (1), melten gel process, during melten gel, envelope nozzle 13 seals, and plasticizing motor 1 drives injection screw 8 to rotate, and plastic cement is former
Material 32 and foaming agent 33 resolve into melting sizing material 53 and minute bubbles 54 by plasticized screw 8 in rubber melting cylinder 7, at this time controlling switch
48 and controlling switch 51 open, hydraulic oil is drawn into injection rodless cavity 31, and injection rod chamber 30 naturally from power unit 26
Interior hydraulic oil flow back into power unit 26 naturally, and injection screw 8 retreats, while adjustment control switch 51, it is ensured that melting sizing material
There is certain pressure value P to prevent minute bubbles 54 from decomposing amplification in 53, the pressure value of melting sizing material 53 can be passed by solution pressure
Sensor 10 is read；Power unit 26 also fills high pressure liquid pressure oil by controlling switch 49 to accumulator 29 at the same time；
Step (2), molds process, and controlling switch 42 is opened, and hydraulic oil enters band-type brake linkage from power unit 25
52 so that band-type brake plate 18 and Ge Lin columns 16 separate；Hydraulic oil enters shifting formwork rod chamber by controlling switch 44 from power unit 25
35, and hydraulic oil flow back into power unit 25 from shifting formwork rodless cavity 34 by controlling switch 45, and shifting formwork purt core 14 drives at this time
Moving platen 20 and the movement of 41 anterior mold of rear mold, 38 direction；
When rear mold 41 touch front mold 38, no-contact electronic ruler 40 passes through reaction magnetic ring 39；Hydraulic oil passes through control
Switch 43 enters band-type brake linkage 52 from power unit 25 so that band-type brake plate 18, which closes up, embraces brother woods column 16；
The driven power unit 26 of high pressure liquid pressure oil enters high pressure rodless cavity 36 by controlling switch 47, high pressure rod chamber 37
Hydraulic oil flows back to power unit 26 by controlling switch 46, and high pressure purt core 23 promotes pressuring plate 21 to drive front mold 38 to be adjacent to rear mold
Tool 41, system plays high pressure mold clamping force at this time, and the flank of tooth is adjacent to the flank of tooth after 16 annular groove of brother woods column after 18 annular groove of band-type brake plate；
It is △ L to adjust the distance between limited block 22 and pressuring plate 21 at this time；
Step (3), injection process, during injection, envelope nozzle 13 is opened, and the high pressure liquid pressure oil of accumulator 29 passes through controlling switch
50 moments entered injection rod chamber 30, and hydraulic oil flows back to power unit from injection rodless cavity 31 by controlling switch 48
26, sizing material 53 and minute bubbles 54 are melted by being injected rear mold 41 and front mold at a high speed after static mixer 11 further mixing
38 die cavitys formed；
After melting sizing material 53 and minute bubbles 54 are rapidly filled with die cavity, envelope nozzle is closed, and the driven power unit 25 of high pressure liquid pressure oil is logical
Cross controlling switch 45 and enter shifting formwork rodless cavity 34, and hydraulic oil flow back into power from shifting formwork rod chamber 35 by controlling switch 44
Unit 25, makes after 18 annular groove of band-type brake plate the flank of tooth continue to be adjacent to the flank of tooth after 16 annular groove of brother woods column；
Step (4), foamed process, the driven power unit 26 of high pressure liquid pressure oil enter high pressure rod chamber by controlling switch 46
37, and hydraulic oil flow back into power unit 26 from high pressure rodless cavity 36 by controlling switch 47, and high pressure purt core 23 drives supercharging
So that front mold 38 leaves 41 a small distance △ L ' of rear mold, no-contact electronic ruler 40 is detected plate 21 by reaction magnetic ring 39
△L′；
Alternatively, pressuring plate 21, which retracts to touch, adjusts limited block 22, the distance between front mold 38 and rear mold 41 are at this time
△ L, it is identical with the distance between pressuring plate 21 and spacing adjusting block 22 △ L before, while no-contact electronic ruler 40 passes through sensing
Magnet ring 39 detects △ L；
At this time because cavity pressure reduces after die sinking, the minute bubbles 54 in semifinished sheets swell as air pocket 55；
Step (5), molds process, and after the completion of cooling, the semifinished sheets sizing for wrapping up cheongsam is completed, controlling switch 42
Open, hydraulic oil enters band-type brake linkage 52 from power unit 25 so that band-type brake plate 18 and Ge Lin columns 16 separate；Hydraulic oil
Shifting formwork rodless cavity 34 is entered from power unit 25 by controlling switch 45, while hydraulic oil has bar by controlling switch 44 from shifting formwork
Chamber 35 flow back into power unit 25, and shifting formwork purt core 14 drives moving platen 20 and rear mold 41 to be moved to away from 38 direction of front mold,
Obtain complete foaming product 56.
In conclusion the present invention such as specification and diagramatic content, is made actual sample and through test is used for multiple times, from making
Seen with the effect of test, the provable present invention can reach its desired purpose, and practical value is unquestionable.It is provided above
Embodiment is only used for conveniently illustrating the present invention, and not makees limitation in any form, any affiliated technology neck to the present invention
Have usually intellectual in domain, if in the range of not departing from the present invention and carrying technical characteristic, utilize disclosed technology
The equivalent embodiment for locally changing or modifying made by content, and without departing from the technical feature content of the present invention, still fall within
In the range of the technology of the present invention feature.
Claims (25)
1. a kind of chemistry fretting map injection-moulding device, including be arranged in support platform (19) moving platen (20), molding head plate
(24), band-type brake plate (18), brother woods column (16), shifting formwork pressure cylinder (1a) and melten gel injection mechanism (1b), molding head plate (24) are fixed
It is arranged in support platform (19), moving platen (20) is arranged in the support platform (19) on front side of molding head plate (24), moving platen
(20) relative axial movement is made by brother woods column (16) and shifting formwork pressure cylinder (1a) connection molding head plate (24), band-type brake plate (18) is even
Brother woods column (16) is connect, melten gel injection mechanism (1b) is connected on rear side of molding head plate (24), and rear mold (41) is fixed on moving platen
(20) on, it is characterised in that：Pressuring plate (21) is additionally provided with front side of molding head plate (24), front mold (38) is fixed on pressuring plate (21)
On front side, mold and high pressure clamping pressure cylinder (1c) is equipped with head plate (24), pressuring plate is connected by high pressure clamping pressure cylinder (1c)
(21), pressuring plate (21) sets injection head (12), is equipped between melten gel injection mechanism (1b) and molding head plate (24) and penetrates shifting dress
(9) are put, melten gel injection mechanism (1b) is connected injection head (12) by penetrating moving device (9).
A kind of 2. chemical fretting map injection-moulding device according to claim 1, it is characterised in that：Melten gel injection mechanism (1b) wraps
Plasticizing motor (1) is included, platform movable plate (2), injection pressure cylinder (1d) is penetrated, penetrates platform foreboard (5), hopper (6), rubber melting cylinder (7), injection
Screw rod (8), penetrate moving device (9), melt force sensor (10), rubber melting cylinder (7) front end intert be positioned in molding head plate (24),
Rear end penetrates (2) running fix of platform movable plate and is penetrating platform foreboard by penetrating (5) running fix of platform foreboard in support platform (19)
(5) in the support platform (19) on rear side of, plasticizing motor (1), which is arranged on, to be penetrated on platform movable plate (2), and injection screw (8) is interspersed in molten
In packing element (7), its rear end connection penetrate plasticizing motor (1) on platform movable plate (2), penetrate platform movable plate (2) and pass through injection pressure cylinder
(1d) is connected with penetrating platform foreboard (5).
A kind of 3. chemical fretting map injection-moulding device according to claim 1, it is characterised in that：Mold head plate 24 and be equipped with tune
Limited block (22) is saved, it is △ L to adjust the distance between limited block (22) and pressuring plate (21).
4. a kind of chemical fretting map injection-moulding device according to claim 1, further include front mold (38), rear mold (41),
Reaction magnetic ring (39), no-contact electronic ruler (40), wherein no-contact electronic ruler (40) are fixed in rear mold (41), rear mold
(41) it is fixed on moving platen (20), reaction magnetic ring (39) is fixed in front mold (38), and front mold (38) is fixed on pressuring plate
(21) on, no-contact electronic ruler (40) and control system (26) connection.
A kind of 5. chemical fretting map injection-moulding device according to claim 1, it is characterised in that：Injection head is set in (12)
There are melt force sensor (10), envelope nozzle (13) and static mixer (11).
A kind of 6. chemical fretting map injection-moulding device according to claim 1, it is characterised in that：Shifting formwork pressure cylinder (1a) includes
Shifting formwork pump (15) and shifting formwork purt core (14), shifting formwork purt core (14) are arranged in shifting formwork pump (15), form shifting formwork rodless cavity
(34) it is fixed on shifting formwork rod chamber (35), shifting formwork pump (15) in molding head plate (24), shifting formwork purt core (14) passes through connecting plate
(17) it is fixed on moving platen (20), shifting formwork rodless cavity (34) is connected by controlling switch (45) and power unit (25), shifting formwork
Rod chamber (35) is connected by controlling switch (44) and power unit (25).
A kind of 7. chemical fretting map injection-moulding device according to claim 1, it is characterised in that：High pressure clamping pressure cylinder (1c)
Including the high pressure purt core (23) in high pressure pump (1e) and high pressure pump (1e), high pressure pump (1e) is arranged on molding head plate (24)
In, high pressure purt core (23) and pressuring plate (21) connection, high pressure purt core (23) and molding head plate (24) form high pressure rodless cavity (36)
With high pressure rod chamber (37), high pressure noon rod cavity (36) is connected by controlling switch (47) and power unit (26), high pressure rod chamber
(37) connected by controlling switch (46) and power unit (23).
A kind of 8. chemical fretting map injection-moulding device according to claim 1, it is characterised in that：Moving platen (20), pressuring plate
(21) and molding head plate (24) is installed on support platform (19) above, and brother woods column (16) is installed on molding head plate (24) above, moves
Template (20) can be axially moved along brother woods column (16).
A kind of 9. chemical fretting map injection-moulding device according to claim 1, it is characterised in that：Brother woods column (16) and band-type brake plate
(18) annular groove is machined with, can be mutually twisted.
A kind of 10. chemical fretting map injection-moulding device according to claim 1, it is characterised in that：Further include control system
(27) and its control connection controlling switch (42,43,44,45,46,47,48,49,50,51) and power unit (25) and power
Unit (26), is also connected with envelope nozzle (13), melt force sensor (10) and plasticizing motor (1).
A kind of 11. chemical fretting map injection-moulding device according to claim 2, it is characterised in that：Injection pressure cylinder (1d) wraps
The injection purt core (3) in injection pump (4) and injection pump (4) is included, injection pump (4), which is arranged on, to be penetrated in platform foreboard (5), injection
Platform movable plate (2) is penetrated in the connection of purt core (3) output terminal, and injection purt core (3) and injection pump (4) form injection rod chamber (30) and penetrate
Glue rodless cavity (31), injection rod chamber (30) are connected by controlling switch (50) and accumulator (29), meanwhile, it is also by control
Switch (51) is connected with power unit (26), and injection rodless cavity (31) is connected by controlling switch (48) and power unit (26).
A kind of 12. chemical fretting map injection-moulding device according to claim 2 or 11, it is characterised in that：Penetrate platform foreboard (5) and
Penetrate platform movable plate (2) and be installed on and penetrate on cushion plate (28), and can be axially moved along cushion plate (28) is penetrated, it is solid to penetrate cushion plate (28)
It is scheduled on support platform (19) above.
A kind of 13. chemical fretting map injection-moulding device according to claim 6, it is characterised in that：Power unit (25) passes through
Controlling switch (42) and controlling switch (43) are connected with band-type brake linkage (52).
A kind of 14. chemical fretting map injection-moulding device according to claim 4 or 7 or 10 or 11, it is characterised in that：Power list
First (26) are also associated with accumulator (29), are connected therebetween by controlling switch (49).
15. a kind of chemistry micro foaming injection moulding technique, includes the following steps：Step (1), melten gel process, by plastic material and
Foaming agent plasticizing keeps melting sizing material to have certain melt pressure to prevent minute bubbles in rubber melting cylinder into melting sizing material and minute bubbles
Resolve into air pocket；Step (2), molds process, and rear mold (41) touch front mold (38) high press-fitting mould；Step (3), injection
Process, after the completion of high press-fitting mould, will melt sizing material fast injection into mould cavity, step (4), foamed process so that preceding
The crack a distance of rear mold, the pressure allowed in die cavity discharge, and minute bubbles further swell into air pocket in semi-finished product at this time；Step
Suddenly (five), mold process, obtain gas be evenly distributed densification foaming product.
A kind of 16. chemical micro foaming injection moulding technique according to claim 15, it is characterised in that：Including following step
Suddenly：
Step (1), melten gel process, plastic material (32) and foaming agent (33) are divided by plasticized screw (8) in rubber melting cylinder (7)
Solution ensures there is certain pressure value in melting sizing material (53) into melting sizing material (53) and minute bubbles (54), prevents minute bubbles
(54) amplification is decomposed；
Step (2), molds process, and first, moving platen (20) and the movement of rear mold (41) anterior mold (38) direction, work as rear mold
When tool (41) touch front mold (38) so that band-type brake plate (18), which closes up, embraces brother woods column (16)；Further, high press-fitting mould, high pressure
Purt core (23) promotes pressuring plate (21) to drive front mold (38) to be adjacent to rear mold (41), and system plays high pressure mold clamping force at this time, and
The flank of tooth is adjacent to the flank of tooth after brother woods column (16) annular groove after band-type brake plate (18) annular groove；
After step (3), injection process, melting sizing material (53) and minute bubbles (54) are by static mixer (11) further mixing
The die cavity that rear mold (41) and front mold (38) are formed is injected at a high speed, is rapidly filled with die cavity；
Step (4), foamed process, high pressure purt core (23) drives pressuring plate (21) so that front mold (38) leaves rear mold (41)
Crack a small distance △ L ', at this time because cavity pressure reduces after crack mould, the minute bubbles (54) in semifinished sheets swell
For air pocket (55)；
Step (5), molds process, and after the completion of cooling, the semifinished sheets sizing for wrapping up bubble is completed, band-type brake plate (18) and brother
Lin Zhu (16) is separated；Moving platen (20) and rear mold (41) are moved to away from front mold (38) direction, obtain completely foaming system
Product (56).
A kind of 17. chemical micro foaming injection moulding technique according to claim 15 or 16, it is characterised in that：Step (1)
In, during melten gel, envelope nozzle (13) is closed, and plasticizing motor (1) drives injection screw (8) to rotate, plastic material (32) and foaming agent
(33) melting sizing material (53) and minute bubbles (54) are resolved into the rubber melting cylinder (7) by plasticized screw (8), hydraulic oil is from power list
First (26) are drawn into injection rodless cavity (31) naturally by controlling switch (48), and the hydraulic oil in injection rod chamber (30) leads to
Cross controlling switch (51) and flow back into power unit (26), injection screw (8) retreats, while adjustment control switch (51), it is ensured that molten
Melting in sizing material (53) has certain pressure value, prevents minute bubbles (54) from decomposing amplification, and the pressure value of melting sizing material (53) can lead to
Cross solution pressure sensor (10) reading；Power unit (26) also fills high pressure by controlling switch (49) to accumulator (29) at the same time
Hydraulic pressure hydraulic oil.
A kind of 18. chemical micro foaming injection moulding technique according to claim 15 or 16, it is characterised in that：Step (2)
In, controlling switch (42) is opened, and hydraulic oil enters band-type brake linkage (52) from power unit (25) so that band-type brake plate (18)
Separated with brother woods column (16)；Hydraulic oil enters shifting formwork rod chamber (35) by controlling switch (44) from power unit (25), and
Hydraulic oil flow back into power unit (25) from shifting formwork rodless cavity (34) by controlling switch (45), and shifting formwork purt core (14) drives at this time
Moving platen (20) and the movement of rear mold (41) anterior mold (38) direction.
A kind of 19. chemical micro foaming injection moulding technique according to claim 15 or 16, it is characterised in that：Step (3)
In, when rear mold (41) touch front mold (38), no-contact electronic ruler (40) passes through reaction magnetic ring (39)；Hydraulic oil passes through control
System switch (43) enters band-type brake linkage (52) from power unit (25) so that band-type brake plate (18), which closes up, embraces brother's woods column
(16)。
A kind of 20. chemical micro foaming injection moulding technique according to claim 15 or 16, it is characterised in that：Step (2)
In, the driven power unit (26) of high pressure liquid pressure oil enters high pressure rodless cavity (36), high pressure rod chamber by controlling switch (47)
(37) hydraulic oil flows back to power unit (26) by controlling switch (46), before high pressure purt core (23) promotes pressuring plate (21) to drive
Mould (38) is adjacent to rear mold (41), and system plays high pressure mold clamping force at this time, and the flank of tooth is adjacent to brother woods after band-type brake plate (18) annular groove
The flank of tooth after column (16) annular groove.
A kind of 21. chemical micro foaming injection moulding technique according to claim 15 or 16, it is characterised in that：Step (3)
In, during injection, envelope nozzle (13) is opened, and the high pressure liquid pressure oil of accumulator (29) enters injection rod chamber by controlling switch (50)
(30), and hydraulic oil flows back to power unit (26), melting sizing material (53) from injection rodless cavity (31) by controlling switch (48)
With minute bubbles (54) by being injected rear mold (41) and front mold (38) shape at a high speed after static mixer (11) further mixing
Into die cavity.
A kind of 22. chemical micro foaming injection moulding technique according to claim 15 or 16, it is characterised in that：Step (3)
In, melting sizing material (53) and after minute bubbles (54) are rapidly filled with die cavity, envelope nozzle is closed, and the driven power unit (25) of high pressure liquid pressure oil is led to
Cross controlling switch (45) and enter shifting formwork rodless cavity (34), and hydraulic oil is flowed from shifting formwork rod chamber (35) by controlling switch (44)
Power unit (25) is returned to, the flank of tooth is continued to be adjacent to the flank of tooth after brother woods column (16) annular groove.
A kind of 23. chemical micro foaming injection moulding technique according to claim 15 or 16, it is characterised in that：Step (4)
In, the driven power unit (26) of high pressure liquid pressure oil enters high pressure rod chamber (37) by controlling switch (46), and hydraulic oil is from height
Pressure rodless cavity (36) flow back into power unit (26) by controlling switch (47), and high pressure purt core (23) drives pressuring plate (21) to cause
Front mold (38) leaves the crack a small distance △ L ' of rear mold (41), and no-contact electronic ruler (40) is examined by reaction magnetic ring (39)
△ L ' are measured, at this time because cavity pressure reduces after crack mould, the minute bubbles (54) in semifinished sheets swell as air pocket
(55)。
A kind of 24. chemical micro foaming injection moulding technique according to claim 15 or 16, it is characterised in that：Step (4)
In, high pressure purt core (23) drives pressuring plate (21) to retract and touch adjusting limited block (22), at this time front mold (38) and rear mold
The distance between (41) it is △ L, it is identical while non-with the distance between pressuring plate before (21) and spacing adjusting block (22) △ L
Contact electronic ruler (40) detects △ L by reaction magnetic ring (39), at this time because cavity pressure reduces after die sinking, semifinished sheets
Interior minute bubbles (54) swell as air pocket (55).
A kind of 25. chemical micro foaming injection moulding technique according to claim 15 or 16, it is characterised in that：Step (5)
In, after the completion of cooling, the semifinished sheets sizing for wrapping up bubble is completed, and controlling switch (42) is opened, and hydraulic oil is from power unit
(25) band-type brake linkage (52) is entered so that band-type brake plate (18) and brother woods column (16) separate；Hydraulic oil passes through controlling switch
(45) enter shifting formwork rodless cavity (34) from power unit (25), at the same hydraulic oil by controlling switch (44) from shifting formwork rod chamber
(35) power unit (25) is flow back into, shifting formwork purt core (14) drives moving platen (20) and rear mold (41) to away from front mold (38)
Direction is moved, and obtains complete foaming product (56).
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| CN115071082A (en) * | 2022-04-29 | 2022-09-20 | 宁波长飞亚塑料机械制造有限公司 | Micro-mold opening system for realizing correlation injection molding machine and control method thereof |
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