CN207657127U - A kind of pressure measuring unit and injection mold in mold cavity - Google Patents
A kind of pressure measuring unit and injection mold in mold cavity Download PDFInfo
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- CN207657127U CN207657127U CN201721601532.6U CN201721601532U CN207657127U CN 207657127 U CN207657127 U CN 207657127U CN 201721601532 U CN201721601532 U CN 201721601532U CN 207657127 U CN207657127 U CN 207657127U
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- pressure
- data acquisition
- pressure sensor
- acquisition equipment
- mold
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Abstract
The utility model discloses a kind of pressure measuring unit and injection mold in mold cavity, the pressure measuring unit includes at least one cover half, dynamic model, each mavable module core and each fixed mold core match the die cavity to be formed for injection molding, the through-hole passed through for thimble is offered on each mavable module core, a pressure sensor is provided with below thimble, the hanging platform end face of thimble is connected with pressure sensor, one end of pressure sensor is connected with the cable of transmission data, cable is electrically connected with data acquisition equipment, data acquisition equipment is electrically connected by conducting wire and monitoring device, pressure sensor acquires pressure, it is transferred to data acquisition equipment, data are shown in after data acquisition equipment is handled in monitoring device, to observe the pressure information at pressure sensor.Design installation pressure sensor apparatus, the pressure sensor apparatus can measure plastics in injection molding, mold filling, pressurize and cooling procedure from the nozzle of injection molding machine to the plastic pressure in die cavity somewhere in die cavity.
Description
Technical field
The utility model is related to mold cavity pressure monitoring technology fields, and mould type is used for more specifically to one kind
The pressure measuring unit and injection mold of intracavitary.
Background technology
Injection mold is a kind of tool producing plasthetics, is also to confer to plasthetics complete structure and accurate dimension
Tool.Injection molding is to produce a kind of processing method used when certain complex-shaped components in batches.It refers specifically to melt heated
Plastics by injection molding machine high pressure inject die cavity obtain formed products after cooling and solidifying.Injection mold is by dynamic model and cover half two parts
Composition, dynamic model are mounted on the moving die plate of injection (mo(u)lding) machine, and cover half is mounted on the fixed form of injection (mo(u)lding) machine.It is injecting
Dynamic model and cover half, which are closed, when molding constitutes running gate system and cavity, and dynamic model and cover half separation are to take out plastic products when die sinking.
In order to reduce heavy mold design and manufacturing effort, injection mould uses standard die set mostly.
Normal injection forming process, there are many kinds of the modes of dwell pressure sensor switching, is cut for example, by using screw position
It changes, volume injected switching, or is switched using oil pressure.Especially when product surface structure is extremely complex, to avoid undesirable trace
Mark, pressurize switching must be very accurate.
Invention content
The purpose of this utility model is exactly to be provided a kind of for mold to solve the above-mentioned problems in the prior art
Pressure measuring unit in cavity and injection mold.
The purpose of this utility model will be achieved by the following technical programs：A kind of pressure measurement dress in mold cavity
It sets, including at least one cover half, dynamic model, setting fixed clamping plate and solid plate on each cover half, each solid plate is solid
It is scheduled on fixed clamping plate, fixed mold core is provided on each solid plate, setting moving clamping plate and dynamic model on each dynamic model
Plate, each moving platen are fixed on moving clamping plate, and mavable module core is provided on each moving platen, each mavable module core
The die cavity to be formed for injection molding is matched with each fixed mold core, offers on each mavable module core and to be passed through for thimble
Through-hole is provided with a pressure sensor below the thimble, and the hanging platform end face of thimble is connected with pressure sensor, and pressure passes
The pressure-sensitive diaphragm of sensor is right against the hanging platform end face of thimble, and one end of the pressure sensor is connected with the cable of transmission data,
The cable is electrically connected with data acquisition equipment, and the data acquisition equipment is electrically connected by conducting wire and monitoring device, institute
Pressure sensor acquisition pressure is stated, is transferred to data acquisition equipment, data are shown in monitoring after data acquisition equipment is handled
In equipment, to observe the pressure information at pressure sensor.
Preferably, ejector retainner plate and lower ejector retainner plate are provided on the dynamic model, the lower ejector retainner plate is being set to thimble hanging platform just
Lower section, and the position opposite with immediately below thimble hanging platform is provided with embedded hole, the sensor is fixedly arranged in embedded hole.
Preferably, the cover half is equipped with the main cast gate being connect with injection machine, and the main sprue and runners are connected, institute
It states runner by cast gate to be connected with mold cavity, by the way that plastic melt is applied to the pressure transmission on thimble to pressure sensor
So that it is generated charge signal and voltage signal, measure practical melt pressure, and sends data acquisition in the form of charge signal
Equipment.
Preferably, the data acquisition equipment is electrically connected by connecting cable and injection molding machine, the data acquisition equipment
Built-in charge amplifier and A/D cards, for charge signal to be converted to voltage signal, analog signal is converted to digital signal, shows
Show that practical cavity pressure value, data acquisition equipment carry out cavity pressure actual value and the pressure value being previously set to score
Analysis, as cavity pressure actual measured value does not meet monitoring condition, then it is assumed that product is substandard products, is then electrically connected to injection molding machine
Mechanical arm send out control signal, order mechanical arm detaches substandard products.
Preferably, the pressure sensor is indirect-type pressure sensor.
Preferably, the operating temperature of the indirect-type pressure sensor is -40~200C °.
Preferably, the monitoring device is industrial computer.
The utility model further discloses a kind of injection mold, includes for the pressure measuring unit in mold cavity.
The advantages of technical solutions of the utility model, is mainly reflected in：The design installation pressure sensor apparatus in die cavity, should
Pressure sensor apparatus can measure plastics in injection molding, mold filling, pressurize and cooling procedure from the nozzle of injection molding machine to die cavity
The plastic pressure in somewhere.The data may be recorded in monitoring device, for adjusting moulding pressure in real time, and after molding into
Row checks or excludes the failure occurred in production process, and this acquired pressure data can become for this mold and this
The common processes parameter of material, the data can be on different injection molding machines（Use identical mold）Instructing manufacture.
Stringent die trial is carried out to the mold that will be delivered for use using pressure sensor, with to the design of mold process into
Row improves.The moulding process of product can be configured and optimize on the basis of first time die trial or second of die trial.This
The technique for having planted optimized can be directly used in later each secondary die trial, to reduce die trial number.With the completion of die trial,
So that mold has been reached quality requirement, but also die casting producer is made to obtain a set of process data by demonstrating, it should
Device greatly reduces production cost, is suitble to industrially promote the use of.
Description of the drawings
Fig. 1 is structural schematic diagram of the utility model for the pressure measuring unit in mold cavity；
Fig. 2 is operation principle schematic diagram of the utility model for the pressure measuring unit in mold cavity.
1--- cover half, the main cast gates of 11---, 12--- runners, 2--- dynamic models, 3--- thimbles, 4--- pressure sensors, 5---
Cable, 6--- data acquisition equipments, 7--- monitoring devices, 10--- die cavitys, 20--- pour slot, 30--- terminal boxes, and 40--- is measured
Amplifier.
Specific implementation mode
The purpose of this utility model, advantage and feature will carry out figure by the non-limitative illustration of preferred embodiment below
Show and explains.These embodiments are only the prominent examples using technical solutions of the utility model, all to take equivalent replacement or wait
Effect transformation and formed technical solution, all fall within the requires of the utility model protection within the scope of.
The utility model discloses a kind of pressure measuring unit and injection mold in mold cavity, as shown in Figure 1, the survey
Pressure device includes at least one cover half 1, dynamic model 2.Setting fixed clamping plate and solid plate on each cover half, each cover half
Plate is fixed on fixed clamping plate, and fixed mold core is provided on each solid plate, on each dynamic model setting moving clamping plate and
Moving platen, each moving platen are fixed on moving clamping plate, and mavable module core is provided on each moving platen, each described dynamic
Mode and each fixed mold core match the die cavity to be formed for injection molding.
The through-hole passed through for thimble 3 is offered on each mavable module core, a pressure is provided with below the thimble
The hanging platform end face of sensor 4, thimble is connected with pressure sensor, and the pressure-sensitive diaphragm of pressure sensor is right against the hanging platform of thimble
End face, the pressure sensor 4 can be indirect-type pressure sensor or flush type pressure sensor, it is in the present embodiment, described
Pressure sensor 4 is preferably indirect-type pressure sensor, and the operating temperature of the indirect-type pressure sensor is -40~200C °.
Injection molding process can be visualized using pressure sensor, it is accurate to reflect melt mold filling state, defective products is screened, it can
To confirm whether multi-impression mold mould filling balances and can optimize moulding process.The indirect-type sensor they plastics can be melted
Body is applied to the pressure transmission on backing-out punch or fixed pin to the sensor on mould-ejecting plate or moving platen, senses mould indirectly
Interior pressure.Flush type sensor is to inject die cavity by boring a mounting hole behind die cavity, its top and die cavity
Flush, cable then pass through from mold and are connected with the monitoring system interface positioned at mold outer surface.This sensing
The advantages of device is pressure disturbances when will not be demoulded, but it is damaged easily very much under the high temperature conditions, is caused difficult to install.
When the fixed half and moving half molds, by by plastic melt be applied to the pressure transmission on thimble to thimble below
Sensor, after the thimble is by the pressure in runner, metal plate benging, strain gauge elongation, resistance changes, thimble by
It is deformed after to pressure, and then gives cell pressure, generate stress.Making pressure sensor, it generates charge signal and voltage signal,
Practical melt pressure is measured, and sends data acquisition equipment in the form of charge signal.As shown in Fig. 2, the pressure sensing
One end of device 4 is connected with the cable 5 of transmission data, and the cable 5 is electrically connected with data acquisition equipment 6, the data acquisition
Equipment 6 is electrically connected by conducting wire and monitoring device 7, and the pressure sensor acquires pressure, is transferred to data acquisition equipment, number
It is shown in monitoring device according to after data acquisition equipment is handled, to observe the pressure information at pressure sensor, the prison
Measurement equipment is industrial computer.
Ejector retainner plate and lower ejector retainner plate are provided on the dynamic model, the lower ejector retainner plate is set to immediately below thimble hanging platform, and
Opposite position is provided with embedded hole with immediately below thimble hanging platform, and the sensor is fixedly arranged in embedded hole.It is set on the cover half 1
There are the main cast gate 11 being connect with injection machine, the main cast gate 11 to be connected with runner 12, the runner 12 passes through cast gate and mould
Have cavity be connected, by by plastic melt be applied to the pressure transmission on thimble to pressure sensor make its generate charge signal and
Voltage signal is measured practical melt pressure, and is sent to data acquisition equipment in the form of charge signal.The data acquisition is set
Standby to be electrically connected by connecting cable and injection molding machine, charge amplifier built in the data acquisition equipment and A/D cards, being used for will be electric
Lotus signal is converted to voltage signal, and analog signal is converted to digital signal, shows that practical cavity pressure value, data acquisition equipment will
Cavity pressure actual value is compared and analyzed with the pressure value being previously set, as cavity pressure actual measured value does not meet monitoring
Condition, then it is assumed that the product is substandard products, then sends out control signal, order machinery to the mechanical arm that injection molding machine is electrically connected
Arm detaches substandard products, and the software to match with data acquisition equipment preserves production process data, and unites automatically
Meter and analysis.
A kind of injection mold, including the above-mentioned pressure measuring unit being used in mold cavity.The pressure measuring unit can be used for owning
Plastic mould product is applied to the industries such as cosmetics, medical treatment, automobile, electronics.
In die cavity design installation pressure sensor apparatus, the pressure sensor apparatus can measure plastics injection molding,
From the nozzle of injection molding machine to the plastic pressure in die cavity somewhere in mold filling, pressurize and cooling procedure.The data may be recorded in monitoring
In equipment, for adjusting moulding pressure in real time, and the failure occurred in production process is checked or excluded after molding,
This acquired pressure data can become the common processes parameter for this mold and this material, which can be in difference
Injection molding machine on（Use identical mold）Instructing manufacture.
Stringent die trial is carried out to the mold that will be delivered for use using pressure sensor, with to the design of mold process into
Row improves.The moulding process of product can be configured and optimize on the basis of first time die trial or second of die trial.This
The technique for having planted optimized can be directly used in later each secondary die trial, to reduce die trial number.With the completion of die trial,
So that mold has been reached quality requirement, but also die casting producer is made to obtain a set of process data by demonstrating, it should
Device greatly reduces production cost, is suitble to industrially promote the use of.
Still there are many embodiment, all technologies formed using equivalents or equivalent transformation for the utility model
Scheme is all fallen within the scope of protection of the utility model.
Claims (8)
1. a kind of pressure measuring unit in mold cavity, it is characterised in that：Including at least one cover half（1）, dynamic model（2）, often
Fixed clamping plate and solid plate are set on a cover half, and each solid plate is fixed on fixed clamping plate, each cover half
Fixed mold core is provided on plate, setting moving clamping plate and moving platen on each dynamic model, each moving platen are fixed on dynamic model
On bottom plate, it is provided with mavable module core on each moving platen, each mavable module core and each fixed mold core are matched to be formed and be used for
The die cavity of injection molding,
It is offered for thimble on each mavable module core（3）The through-hole passed through is provided with pressure biography below the thimble
Sensor（4）, the hanging platform end face of thimble is connected with pressure sensor, and the pressure-sensitive diaphragm of pressure sensor is right against the hanging platform of thimble
End face,
The pressure sensor（4）One end be connected with the cable of transmission data（5）, the cable（5）With data acquisition equipment
（6）It is electrically connected, the data acquisition equipment（6）Pass through conducting wire and monitoring device（7）It is electrically connected, the pressure sensor is adopted
Collect pressure, be transferred to data acquisition equipment, data are shown in after data acquisition equipment is handled in monitoring device, to observe pressure
Pressure information at force snesor.
2. a kind of pressure measuring unit in mold cavity according to claim 1, it is characterised in that：It is set on the dynamic model
It is equipped with ejector retainner plate and lower ejector retainner plate, the lower ejector retainner plate is set to immediately below thimble hanging platform, and opposite with immediately below thimble hanging platform
Position be provided with embedded hole, the sensor is fixedly arranged in embedded hole.
3. a kind of pressure measuring unit in mold cavity according to claim 1, it is characterised in that：The cover half（1）
It is equipped with the main cast gate being connect with injection machine（11）, the main cast gate（11）With runner（12）It is connected, the runner（12）
It is connected with mold cavity by cast gate, makes its production to pressure sensor by the way that plastic melt is applied to the pressure transmission on thimble
Raw charge signal and voltage signal, measure practical melt pressure, and send data acquisition equipment in the form of charge signal.
4. a kind of pressure measuring unit in mold cavity according to claim 1, it is characterised in that：The data acquisition
Equipment is electrically connected by connecting cable and injection molding machine, charge amplifier built in the data acquisition equipment and A/D cards, and being used for will
Charge signal is converted to voltage signal, and analog signal is converted to digital signal, shows practical cavity pressure value, data acquisition equipment
Cavity pressure actual value is compared and analyzed with the pressure value being previously set, as cavity pressure actual measured value does not meet prison
Survey condition, then it is assumed that product is substandard products, then sends out control signal, order machinery to the mechanical arm that injection molding machine is electrically connected
Arm detaches substandard products.
5. a kind of pressure measuring unit in mold cavity according to claim 1, it is characterised in that：The pressure sensing
Device is indirect-type pressure sensor.
6. a kind of pressure measuring unit in mold cavity according to claim 5, it is characterised in that：The indirect-type pressure
The operating temperature of force snesor is -40~200C °.
7. a kind of pressure measuring unit in mold cavity according to claim 1, it is characterised in that：The monitoring device
For industrial computer.
8. a kind of injection mold, which is characterized in that include if claim 1-7 any one of them is for the survey in mold cavity
Pressure device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721601532.6U CN207657127U (en) | 2017-11-27 | 2017-11-27 | A kind of pressure measuring unit and injection mold in mold cavity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721601532.6U CN207657127U (en) | 2017-11-27 | 2017-11-27 | A kind of pressure measuring unit and injection mold in mold cavity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207657127U true CN207657127U (en) | 2018-07-27 |
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ID=62947260
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| Application Number | Title | Priority Date | Filing Date |
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| CN201721601532.6U Active CN207657127U (en) | 2017-11-27 | 2017-11-27 | A kind of pressure measuring unit and injection mold in mold cavity |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107803976A (en) * | 2017-11-27 | 2018-03-16 | 优力精密塑胶（苏州）有限公司 | A kind of pressure tester and injection mold in mold cavity |
| CN109466023A (en) * | 2018-12-26 | 2019-03-15 | 天津瑞福天科模具有限公司 | A kind of simple standard universal die set |
| CN111086024A (en) * | 2019-12-18 | 2020-05-01 | 南京熊猫电子股份有限公司 | Monitoring system and monitoring method applied to industrial robot |
-
2017
- 2017-11-27 CN CN201721601532.6U patent/CN207657127U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107803976A (en) * | 2017-11-27 | 2018-03-16 | 优力精密塑胶（苏州）有限公司 | A kind of pressure tester and injection mold in mold cavity |
| CN109466023A (en) * | 2018-12-26 | 2019-03-15 | 天津瑞福天科模具有限公司 | A kind of simple standard universal die set |
| CN111086024A (en) * | 2019-12-18 | 2020-05-01 | 南京熊猫电子股份有限公司 | Monitoring system and monitoring method applied to industrial robot |
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