CN207889080U - A kind of superthin plastic part dynamic analog temperature vacuum forming system - Google Patents
A kind of superthin plastic part dynamic analog temperature vacuum forming system Download PDFInfo
- Publication number
- CN207889080U CN207889080U CN201721123372.9U CN201721123372U CN207889080U CN 207889080 U CN207889080 U CN 207889080U CN 201721123372 U CN201721123372 U CN 201721123372U CN 207889080 U CN207889080 U CN 207889080U
- Authority
- CN
- China
- Prior art keywords
- mold
- equipment
- vacuum
- die temperance
- plastic part
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The utility model discloses a kind of superthin plastic part dynamic analog temperature vacuum forming systems, mainly include injection molding machine, electrical heating sealed mold, die temperance control equipment and vacuum cavitations equipment, machine Control system unit respectively with die temperance control unit, vacuum cavitations unit communications.Temperature sensor and gas pressure sensor are installed on mold；Cooling water channel enters mold water inlet by cooling tower through die temperance control equipment, is connect with the water return pipeline of die temperance control equipment by mould inside water route, mold water outlet, finally enters the recovery pipe of cooling tower；There are two gas circuits, a connection vacuum tank and mold cavity, another connecting mold cavity and ambient atmosphere inside vacuum cavitations equipment, controlled valve is mounted on two pipelines.The utility model can be molded the superthin plastic product of high quality on common small tonnage injection molding machine.
Description
Technical field
The utility model is related to a kind of formation system of superthin plastic part more particularly to a kind of superthin plastic part dynamic analog temperature
Under vacuum forming system.
Background technology
Injection molding technology has strong Technological adaptability, high degree of automation, short molding cycle, production efficiency height, material
The advantages that utilization rate height, plastic complicated shape product, it has also become one of main forming technique of plastic processing.Currently, injection molding
Forming technique has been widely used in the fields such as automobile, electronics, aviation, medical instrument, household electrical appliances, military affairs, building.With people's ring
The raising of consciousness is protected, plastic product gradually develops to directions such as high-precision, light weight, few processes.
It is to reduce plastic weight, save material means the most direct to reduce plastic thickness.Therefore, the life of superthin plastic part
Production has obtained extensive concern and research.However, superthin plastic part, during injection fillers, the cooling velocity of melt is very fast,
It is generally necessary to larger injection pressure could obtain complete plastic, more stringent requirements are proposed for this tonnage to injection molding machine.Separately
On the one hand, excessive stream is long than causing the molding of plastic micro-structure more difficult, easily causes part is short to penetrate.The above problem
In the presence of bringing and greatly hinder for the production of superthin plastic part.
To produce superthin plastic product, Wang Yulin et al. disclosed a kind of entitled " large-area ultrathin in 2011 in China
Plastic part injection mould "（Publication number：CN 102120357 A）Patented technology.The technology proposes one kind and is fixed by quiet mould
Plate, quiet template and quiet mold core constitute quiet mould, and the mould structure of dynamic model is made of dynamic mould fixing plate, cushion block, moving platen and moving-mould-core,
Its exhaust passage is equipped with compressed air blowpipe.This mould structure can make mold cavity generate certain negative pressure at the time of molding,
Promote melt flows to a certain extent, but it promotes limitation, can not effectively reduce the injection pressure and injection speed of injection molding machine
Degree.Wang Ya elms et al. disclosed a kind of entitled " a kind of ultra-thin part injection molding production technologies of IML " in 2012 in China（Publication number：
CN 102848518 A）Patented technology.The technology proposes under a kind of high injection pressure after the full mold cavity of melt filling, stands
It is transferred to high pressurize 0.2s~0.6s quarters, then is transferred to the Shooting Technique flow of low pressure holding 2s~4s.Although the above method solves IML
Product is drawn the problem of concave change shape and poor flatness, but injection pressure and dwell pressure excessively high in its forming process is to injection molding
Machine tonnage proposes higher requirement, and causes the waste of the energy to a certain extent.
Invention content
To solve the above problems, the utility model proposes a kind of superthin plastic part dynamic analog temperature vacuum forming system, that is, exist
First mold cavity is vacuumized after mold clamping, and maintains the vacuum shape of mold cavity always before melt end-of-fill
State.At the same time, dynamic control is carried out to mold cavity temperature in forming process.It was filled by the raising of dynamic die temperance control
The mobility of melt in journey applies melt flows forward position certain tractive force by mold cavity vacuum cavitations, by above-mentioned two
Kind technology combines, and can effectively ensure that the molding of superthin plastic part and its micro-structure.Its specific forming process is：Injection molding machine with it is outer
Portion's vacuum cavitations equipment, die temperance control device talk.When mold molds, injection molding machine sends out mold heating letter to die temperance control equipment
Number, the electrically heated rod that die temperance control equipment connects mould inside carries out mold heating, when mold temperature reaches set temperature（It is slightly higher
In the glass transition temperature of melt）When, stop mold heating process and this temperature is maintained to be basically unchanged, die temperance control equipment hair
Go out to mold signal；After injection molding machine receives molding signal, mould assembling action is carried out, injection molding machine, which is sent out, after molding vacuumizes letter
Number；Vacuum cavitations equipment receives vacuumize signal after, to mold cavity carry out vacuuming action, when mold cavity reaches setting
Pressure value when, stop vacuumizing and this pressure value being maintained to be basically unchanged for mold cavity, vacuum cavitations equipment sends out injection letter
Number；Injection molding machine carries out action of injection after receiving injection signal, during melt fills mold cavity, due to the gas in cavity
By melt compression, the gas pressure in mold cavity increases, and needs to carry out secondary vacuum pumping action to mold cavity in the process,
To ensure the stabilization of mold cavity gas pressure in melt filling process, type cavity gas pressure oscillation is avoided to bring molding plastic
Adverse effect；After melt filling process, injection molding machine carries out pressure maintaining period, and die temperance control equipment carries out fast quickly cooling to mold
But, while vacuum cavitations equipment control respective valves act, and so that mold cavity is connected with air, to mold pickup；Mold is cold
But after process, injection molding machine carries out die sinking action, and sends out mold heating signal, prepares for next injection cycle.
To achieve the above object, the utility model uses following technical proposals：
A kind of superthin plastic part dynamic analog temperature vacuum forming system, mainly include injection molding machine, electrical heating sealing injection mold,
Vacuum cavitations equipment, die temperance control equipment.
The cover half side of the sealing electrical heating injection mold is provided with heating rod and cooling pipe, heating rod and cooling pipe
It is controlled by die temperance control equipment；Mold parting surface and inside are equipped with air flue, and air flue passes through pipeline and valve pipeline conversion equipment
Connection, valve pipeline conversion equipment are controlled by vacuum cavitations equipment.
The stationary mould for mould side is equipped with temperature sensor, transmits mold temperature data to die temperance control equipment in real time；Mould
Tool cavity air flue is equipped with gas pressure sensor, transmits mold cavity gas pressure data to vacuum cavitations equipment in real time.
Filter, water supply valve, current divider and compressed air valve are installed, cooling water is by cooling down on the cooling pipe
Water tower flows back to cooling tower after filter, water supply valve, mold water inlet current divider, mold water outlet current divider, is formed cold
But circuit.
The main negative pressure valve of valve pipeline conversion equipment and air valve, negative pressure valve are installed on mold and are connected to vacuum tank
Pipeline on, air valve is installed on the pipeline that mold is connect with air.
The vacuum tank is equipped with gas pressure sensor and gas gauge, is converted respectively with valve pipeline by pipeline
Device is connected with vacuum pump.
The control unit of the die temperance control equipment and vacuum cavitations equipment is required according to actual production, control each valve,
The action of vacuum pump and warning device, and communicated with the control unit of injection molding machine.Its data processing and control system can be
Industrial personal computer, computer, microcontroller or PLC.
Superthin plastic part dynamic analog temperature vacuum forming method, steps are as follows：
1）Before injection molding, the negative pressure value of vacuum tank is set, vacuum pump is run, when the pressure of vacuum tank reaches setting value
Afterwards, the vacuuming action for stopping vacuum tank, prepares for injection moulding process；
2）The a cycle of forming process can carry out manual heating to mold, can also carry out being molded under chill state, from
Second molding cycle starts to retain moulding.
3）When mold molds, die temperance control equipment receives the die sinking signal of machine Control system unit, carries out the heating of mold
Process stops mold heating when mold temperature reaches the temperature value of setting, and sends out to injection molding machine and to allow to mold signal.
4）Injection molding machine carries out mould assembling action, and at the end of molding, the control unit of injection molding machine sends out mold cavity and vacuumizes
Signal, vacuum cavitations equipment carry out vacuuming action to mold cavity and stop when the gas pressure of mold cavity reaches setting value
Only cavity vacuumizes and sends out permission injection signal.
5）Injection molding machine carries out injection process, and in melt filling process, the gas in mold cavity is compressed, type cavity gas
Pressure rise, vacuum cavitations equipment carries out dynamic regulation according to the type cavity gas pressure and setting pressure of Real-time Feedback, to mold
Cavity carries out secondary vacuum pumping action, ensures the stabilization of mold cavity gas pressure in melt filling process.
6）After injection process, injection molding machine carries out pressure maintaining period, and it is cold that die temperance control equipment control cooling water enters mold
But pipeline is quickly cooled down mold, at the same time, vacuum cavitations equipment control respective valves action, by mold cavity with
Ambient atmosphere is connected, and prepares for die sinking pickup.
7）After mold cooling procedure, die temperance control equipment control compressed air enters mold cooling pipe, will remain
Cooling water discharge, for next modulus of periodicity tool heating prepare.
8）After pressurize and cooling procedure, machine Control system mold molds pickup, and sends out mold heating signal, carries out
Next injection cycle.
The utility model is according to practical injection moulding process, by the signal communication with injection molding machine, control corresponding valve and after
Electric appliance is acted, and is completed to quickly the heating, be quickly cooled down of injection mold, cavity vacuumizes and cavity presses functional requirement again,
The production of superthin plastic part can be achieved.The utility model can ensure that 25 DEG C~350 DEG C of mold temperature range can in injection moulding process
It adjusts, 0.08MPa~0 mold cavity gas pressure range ﹣ is adjustable（Actual use pressure limit is 0.06MPa~0 ﹣）.
According to the detailed process of injection molding, the utility model needs first by external vacuum tank take out before the forming true
Sky is made negative pressure value in tank be less than the mold cavity negative pressure value of setting, and is monitored in real time using gas pressure sensor and pressure gauge
Gas pressure in vacuum tank and mold cavity.
Using the die sinking signal of injection molding machine, molding signal, pressurize signal, the mold temperature signal of die temperance control equipment is born
The mold cavity gas pressure signal of pressure control apparatus realizes the dynamic of injection molding machine, die temperance control equipment and vacuum cavitations equipment room
It matches, it is ensured that dynamic analog temperature vacuum forming process is smoothed out.
The die sinking signal that machine Control system unit is read by die temperance control unit carries out mold heating process triggering；Pass through
The die temperance control unit mold high temperature signal that machine Control system unit is read carries out mould assembling action triggering；Pass through vacuum cavitations unit
The molding end signal for reading machine Control system unit carries out mold cavity vacuum triggering；Pass through machine Control system unit
The vacuum cavitations unit mold cavity gas pressure signal of reading carries out injection process triggering；It is read and is noted by die temperance control unit
The pressurize signal of molding machine control unit carries out mold cooling procedure triggering；The machine Control system list read by vacuum cavitations unit
The pressurize signal of member carries out mold cavity emptying and presses through journey triggering again；The die temperance control unit read by machine Control system unit
Mold low-temperature signal carries out die sinking action triggers.
Vacuum cavitations unit and die temperance control unit described in the utility model receive injection molding machine signal, temperature sensor letter
Number and pressure sensor signal, 5V voltage signals and on-off signal are exported after data processing.
The utility model has the beneficial effects that the common injection machine molded surface quality and dimensional accuracy of smaller tonnage can be used
Higher superthin plastic product eliminates the subsequent polishing of moulding, throwing on the basis of reducing the energy and equipment cost
The processes such as light, spraying effectively reduce resource and artificial waste.
Description of the drawings
Fig. 1 is a kind of superthin plastic part dynamic analog temperature vacuum forming system construction drawing of the utility model.
Wherein 1. machine Control system units, 2. die temperance control equipment, 3. vacuum cavitations equipment, 4. filters, 5. cooling waters
Tower, 6. molds, 7. temperature sensors, 8. gas pressure sensors, 9. heating rods.
Specific implementation mode
The utility model is further illustrated with reference to the accompanying drawings and examples.
As shown in Figure 1, superthin plastic part dynamic analog temperature vacuum forming system, including machine Control system unit 1, injection molding machine control
Unit 1 processed is communicated with die temperance control equipment 2, vacuum cavitations equipment 3 respectively；The cooling water channel of die temperance control equipment 2, outside
Cooling tower 5 and the cooling water channel of mold 6 are connected in series with by steel pipe, constitute the cooling water channel of system entirety, are flowed in cooling tower 5
Enter installation filter 4 on the pipeline of die temperance control equipment 2；Mold cavity phase of the vacuum cavitations equipment 3 through negative pressure line with mold 6
Even；6 mounting temperature sensor 7 of mold and gas pressure sensor 8, respectively die temperance control equipment 2 and vacuum cavitations equipment 3 are real
When mold temperature data and mold cavity gas pressure data are provided；The cover half side of mold 6 is equipped with heating rod 9, heating rod 9 by
Die temperance control equipment 2 controls, and realizes the heating to mold 6.
There is two-way water route inside die temperance control equipment 2, a routing cooling tower 5 is connected through filter 4 to supply water, and and mold
7 water inlet connection；The water outlet of another way connecting mold 7, and the waste water of discharge is conveyed to cooling tower 5.Vacuum cavitations
3 inside of equipment has two-way gas circuit, connects the mold cavity of outer vacuum and mold 6 all the way；Another way connects air and mould
The mold cavity of tool 6.
All cooling water channels and gas circuit are all made of stainless steel tube.The control unit and negative pressure control of die temperance control equipment 2 are set up
Standby 3 control unit can be industrial personal computer, computer, microcontroller or PLC
The die temperance control unit of die temperance control equipment 2 and the vacuum cavitations unit of vacuum cavitations equipment 3 can be realized and be molded
Signal communication between machine control unit 1, while the signal of temperature sensor 7 and gas pressure sensor 8 is received, and realize data
Signal output that treated, control respective valves driving carry out corresponding actions.
The valve on connecting line diameter and pipeline between the die temperance control equipment 2, mold 6, cooling tower 5 is straight
Diameter：DN50.
Connecting line diameter between the vacuum cavitations equipment 3 and mold 6：DN10.
The temperature sensor 7 selects PT100 temperature sensors, temperature measurement range：- 200 DEG C~650 DEG C.
The gas pressure sensor 8 selects vacuum transducer, pressure measurement range：- 0.1MPa~0.
For the dynamic analog temperature vacuum forming technical process of superthin plastic part, mold temperature variation range be generally 25 DEG C~
300 DEG C, mold cavity gas pressure change range is generally 0.06MPa~0 ﹣, now with mold temperature high temperature temperature in injection moulding process
Degree is 150 DEG C, and mold cavity gas pressure illustrates the forming method for being ﹣ 0.04MPa.
1）Before injection molding starts, need to be set in advance outer vacuum pressure value be -0.05MPA, and to vacuum tank into
Row vacuumizes, and when the negative pressure value in vacuum tank reaches -0.05MPa, stops the vacuuming action to vacuum tank, and maintains this negative
Pressure value is constant, prepares for superthin plastic part dynamic analog temperature vacuum forming process.
2）It is 150 DEG C that mold temperature high-temperature temperature is arranged in die temperance control equipment 2, is set in vacuum cavitations equipment 3
Mold cavity gas pressure is ﹣ 0.04MPa.
3）Die temperance control equipment 2 connects the heating electricity of heating rod 9 by the die sinking signal of reception machine Control system unit 1
Mold 6 is heated on road, and when the mold temperature that temperature sensor 7 is fed back reaches 150 DEG C, die temperance control equipment 2, which disconnects, to be added
The heater circuit of hot pin 9 stops the heating to mold 6.
4）It is molded after mold heating process, when vacuum cavitations equipment 3 receives the conjunction of machine Control system unit 1
After mould end signal, start to carry out vacuuming action to the cavity of mold 6, when the gas pressure that gas pressure sensor 8 is fed back
For ﹣ 0.04MPa when, stop the vacuum of mold cavity, and send out permission injection signal.
5）When machine Control system unit 1 receives the permission injection signal that vacuum cavitations equipment 3 is sent out, injection is proceeded by
Process.
6）During melt fills mold cavity, type intracavity gas is compressed, and type cavity gas pressure rise is caused, to avoid
There is larger fluctuation in gas pressure in cavity, and vacuum cavitations equipment 3 carries out secondary vacuum pumping action, so that it is guaranteed that forming process
Stabilization.
7）After injection process, the pressure maintaining period of melt is carried out, when die temperance control equipment 2 receives machine Control system list
After the pressurize signal that member 1 is sent out, the cooling water of control cooling tower 5 enters the cooling line of mold 7, and fast quickly cooling is carried out to mold
But.Meanwhile vacuum cavitations equipment 3 controls respective valves action, and mold cavity is connected with ambient atmosphere, is taken for subsequent die sinking
Part is prepared.
8）At the end of mold cooling procedure, machine Control system unit 1 sends out die sinking signal, carries out die sinking pickup.
It is above-mentioned although specific embodiments of the present invention are described with reference to the accompanying drawings, but not to this practicality newly
The protection domain of type is limited, those skilled in the art should understand that, on the basis of the technical solution of the utility model
On, the various modifications or variations that can be made by those skilled in the art with little creative work still in the utility model
Within protection domain.
Claims (5)
1. a kind of superthin plastic part dynamic analog temperature vacuum forming system, characterized in that including injection molding machine, injection molding machine is equipped with electrical heating
Sealed mold, mold parting surface and the internal corresponding air flue of processing, mold corresponding position mounting temperature sensor and gas pressure
Sensor；Injection machine mould is connected with die temperance control equipment and vacuum cavitations equipment, machine Control system unit and die temperance control list
Member, vacuum cavitations unit communications；Die temperance control equipment realizes quickly heating and be quickly cooled down for mold, and vacuum cavitations equipment is realized
Mold cavity vacuumizes.
2. superthin plastic part dynamic analog temperature vacuum forming system as described in claim 1, characterized in that the mold heating is adopted
Use Electric heating.
3. superthin plastic part dynamic analog temperature vacuum forming system as described in claim 1, characterized in that die temperance control equipment with
Vacuum cavitations equipment is independent external equipment, and respectively with machine Control system unit communications, between the two without direct correlation.
4. superthin plastic part dynamic analog temperature vacuum forming system as claimed in claim 3, characterized in that die temperance control equipment can
Realize two kinds of control modes of mold heating time and mold temperature.
5. superthin plastic part dynamic analog temperature vacuum forming system as claimed in claim 3, characterized in that die temperance control equipment and
The control unit of vacuum cavitations equipment can be industrial personal computer, computer, microcontroller or PLC.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721123372.9U CN207889080U (en) | 2017-09-04 | 2017-09-04 | A kind of superthin plastic part dynamic analog temperature vacuum forming system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721123372.9U CN207889080U (en) | 2017-09-04 | 2017-09-04 | A kind of superthin plastic part dynamic analog temperature vacuum forming system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207889080U true CN207889080U (en) | 2018-09-21 |
Family
ID=63547417
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721123372.9U Active CN207889080U (en) | 2017-09-04 | 2017-09-04 | A kind of superthin plastic part dynamic analog temperature vacuum forming system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207889080U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109421239A (en) * | 2017-09-04 | 2019-03-05 | 临沂大学 | A kind of superthin plastic part dynamic analog temperature vacuum forming system |
-
2017
- 2017-09-04 CN CN201721123372.9U patent/CN207889080U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109421239A (en) * | 2017-09-04 | 2019-03-05 | 临沂大学 | A kind of superthin plastic part dynamic analog temperature vacuum forming system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101157267A (en) | A attemperation system of highlight weld mark-free plastic mould | |
| CN102935711B (en) | Injection mold cavity pressure control system and method | |
| CN207889080U (en) | A kind of superthin plastic part dynamic analog temperature vacuum forming system | |
| CN209426012U (en) | A kind of polytetrafluoroethylene (PTFE) plate molding die | |
| CN206748987U (en) | A kind of negative pressure chemical blowing injection molding system | |
| CN102275309B (en) | High-pressure gas tank formation device and method for polymer-based carbon fiber composite material | |
| CN114594673B (en) | Edible gelatin 3D printing equipment and control system | |
| CN102218827B (en) | High pressure gas tank forming device and method for polymer matrix carbon fiber composite materials | |
| CN101100106A (en) | Plastic mould rapid heating and cooling temperature controlling device | |
| CN109421239A (en) | A kind of superthin plastic part dynamic analog temperature vacuum forming system | |
| CN109878045B (en) | Control device for intelligently adjusting constant pressure and accurate control of mold cavity | |
| CN114707903A (en) | Intelligent management system for injection mold | |
| CN201120709Y (en) | Temperature controller for highlight non-weld mark plastic mold | |
| CN103774905A (en) | Novel pole producing technology | |
| CN207607047U (en) | A kind of injection molding machine injecting systems | |
| CN207736666U (en) | A kind of cavity injection mold possessing efficient runner | |
| CN108673913A (en) | A kind of quickly porous compression manufacturing process | |
| CN102275310A (en) | High-pressure water tank formation device and method for polymer-based carbon fiber composite material | |
| CN208392703U (en) | A kind of molding die of quickly porous compression manufacturing process | |
| CN108859044A (en) | Negative pressure chemical blowing injection molding forming method | |
| CN207207073U (en) | A kind of foaming die and air-cooled internal diameter sizing all-in-one machine | |
| CN207224543U (en) | A kind of foaming die and water-cooled internal diameter sizing all-in-one machine | |
| CN203580059U (en) | Injection molding system | |
| CN205145933U (en) | Vertical centrifugal casting machine exhaust apparatus | |
| CN112549423A (en) | Intelligent manufacturing device for plastic injection molding rapid cooling |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |