CN104859118A - Pressure adjusting mechanism and pressure adjusting method of low-pressure injection molding packaging equipment - Google Patents
Pressure adjusting mechanism and pressure adjusting method of low-pressure injection molding packaging equipment Download PDFInfo
- Publication number
- CN104859118A CN104859118A CN201510136149.7A CN201510136149A CN104859118A CN 104859118 A CN104859118 A CN 104859118A CN 201510136149 A CN201510136149 A CN 201510136149A CN 104859118 A CN104859118 A CN 104859118A
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- China
- Prior art keywords
- pressure
- glue
- melting cylinder
- opening
- regulating device
- 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.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/76—Measuring, controlling or regulating
- B29C45/77—Measuring, controlling or regulating of velocity or pressure of moulding material
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
- H01L21/67005—Apparatus not specifically provided for elsewhere
- H01L21/67011—Apparatus for manufacture or treatment
- H01L21/67126—Apparatus for sealing, encapsulating, glassing, decapsulating or the like
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
- B29C2945/76—Measuring, controlling or regulating
- B29C2945/76494—Controlled parameter
- B29C2945/76498—Pressure
-
- 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
- B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
- B29C2945/76—Measuring, controlling or regulating
- B29C2945/76655—Location of control
- B29C2945/76658—Injection unit
- B29C2945/76688—Injection unit nozzle
-
- 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
- B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
- B29C2945/76—Measuring, controlling or regulating
- B29C2945/76822—Phase or stage of control
- B29C2945/76829—Feeding
- B29C2945/76832—Feeding raw materials
-
- 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
- B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
- B29C2945/76—Measuring, controlling or regulating
- B29C2945/76929—Controlling method
- B29C2945/76939—Using stored or historical data sets
- B29C2945/76943—Using stored or historical data sets compare with thresholds
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Mechanical Engineering (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The present invention discloses a pressure adjusting mechanism and a pressure adjusting method of low-pressure injection molding packaging equipment. The low-pressure injection molding packaging equipment further comprises a glue melting cylinder having an inner cavity and a glue injection mechanism communicated with the inner cavity, wherein the glue melting cylinder is provided with a pressure adjusting value, the pressure adjusting valve is provided with an opening and a valve core, the valve core comprises a body and a cone top portion extending from one end of the body to the opening, the cross section area of the cone top portion gradually decreases along a direction from the body to the opening, a reflux port is formed between the cone top portion and the opening, the inner cavity of the glue melting cylinder and the glue injection flow channel of the glue injection mechanism are communicated through the reflux port so as to make the glue reflux to the glue melting cylinder from the glue injection flow channel, the pressure adjusting mechanism comprises a linear stepper motor with a driver, and the motor output shaft of the linear stepper motor is connected with the valve core, and can move a desired distance in a desired direction according to the pulse frequency produced by the driver so as to adjust the size of the reflux port. The present invention provides the pressure adjusting mechanism and the pressure adjusting method, wherein the precise low-pressure glue injection of the low-pressure injection molding packaging equipment can be achieved with the mechanism and the method.
Description
Technical field
the present invention relates to low-pressure injection molding encapsulation field, particularly a kind of pressure regulating device of low-pressure injection molding sealed in unit and pressure regulation method.
Background technology
the pressure controlling of low-pressure injection molding sealed in unit is the key realizing low-pressure glue-injection.Hypertonia can cause the electronic component in injecting glue product to damage because of the impact of high pressure when injecting glue, outward appearance also can be caused to occur injecting glue burr and affect use simultaneously; Hypotony then can cause defect such as injecting glue such as injecting glue product packaging bad grade.
shown in composition graphs 1, in prior art, the voltage regulating mode of low-pressure injection molding sealed in unit, is that the spool 2 adopting the cylinder piston rod 1 be arranged on pressure regulator valve (also referred to as safety valve) to promote in pressure regulator valve moves, realizes the shutoff of the spool vertex of a cone 21 pairs of pressure regulator valve openings 3 or open by the movement of spool 2.When the vertex of a cone 21 shutoff by spool of the opening 3 of pressure regulator valve, glue can not be back in the inner chamber 5 of glue-smelting machine through pressure regulator valve from the injecting glue runner 4 of gum-filling mechanism, thus the pressure of injection system is raised; Otherwise when the vertex of a cone 21 of the spool of pressure regulator valve is progressively opened, be formed with refluxing opening between the vertex of a cone 21 and opening 3, glue is back to the inner chamber 5 of glue melting cylinder from the injecting glue runner 4 of gum-filling mechanism via refluxing opening, thus the pressure of injection system is reduced; Like this by the change that the vertex of a cone of pressure regulator valve spool constantly increases the refluxing opening of pressure regulator valve or reduces, thus realize the object of the pressure regulating injection system.
due to pressure regulator valve spool the vertex of a cone suffered by pressure applied by cylinder, the change of the pressure of the air supply system of cylinder just inevitably has influence on the pressure on the adjusting pressuring valve core vertex of a cone.So along with the pressure oscillation of air supply system, the pressure be applied on pressure regulator valve also can fluctuate, and must cause the fluctuation of injection pressure like this, thus accurate low-pressure glue-injection cannot be realized.Cause the defect of injecting glue product and fraction defective to increase, this phenomenon especially highlights when the product that injecting glue amount is on the low side carries out low-pressure glue-injection.
Summary of the invention
for the problems referred to above, the object of this invention is to provide a kind of pressure regulating device and the pressure regulation method that realize the accurate low-pressure glue-injection of low-pressure injection molding sealed in unit.
for solving the problems of the technologies described above, the present invention adopts following technical scheme:
a kind of pressure regulating device of low-pressure injection molding sealed in unit, low-pressure injection molding sealed in unit also comprises the glue melting cylinder with inner chamber and the gum-filling mechanism with described intracavity inter-connection, described glue melting cylinder is provided with pressure regulator valve, described pressure regulator valve has opening and spool, described spool comprises body, from the cone top part that one end of described body extends towards described opening, the area of section of described cone top part is along reducing gradually towards the direction of opening from body, refluxing opening is formed between described cone top part and opening, described refluxing opening is communicated with the inner chamber of glue melting cylinder and the injecting glue runner of gum-filling mechanism and makes glue in injecting glue runner, be back to glue melting cylinder, described pressure regulating device comprises the linear stepping motor with driver, the motor output shaft of described linear stepping motor is connected with spool and the pulse frequency that can produce according to driver moves the distance of expectation to regulate the size of refluxing opening by the direction expected.
preferably, described pressure regulating device also comprises controller, and described controller draws the desired orientation of spool movement and desired distance according to the difference of actual injection pressure value in the expectation injection pressure value of setting and glue melting cylinder and control and drive system produces the pulse frequency expected.
more preferably, described controller is electrically connected mutually with driver.
more preferably, described pressure regulating device also comprises the pressure sensor for detecting the actual injection pressure value in glue melting cylinder be arranged in described glue melting cylinder, and described pressure sensor is electrically connected mutually with controller.
more preferably, described controller is PLC.
a pressure regulation method for described pressure regulating device, comprises the steps: that injection pressure value is expected in setting; Detect the actual injection pressure value in glue melting cylinder; According to the difference expecting injection pressure value and actual injection pressure value, draw desired orientation and the desired distance of spool movement, driver produces the pulse frequency expected; According to the pulse frequency expected, the motor output shaft of linear stepping motor moves the distance of expectation by the direction expected.。
in conjunction with above-mentioned, the present invention adopts above scheme, tool has the following advantages compared to existing technology: adopt linear stepping motor, according to required injection pressure, controller draws the moving direction of spool and displacement and control and drive system produces corresponding pulse frequency accordingly, driver gets final product accurate drive motors output shaft moves expectation distance by the direction expected, accurately can control size and the glue capacity of returns of refluxing opening, thus accurately control the injection pressure in the injecting glue runner of gum-filling mechanism.
Accompanying drawing explanation
accompanying drawing 1 is the schematic diagram of pressure regulating device of the prior art;
accompanying drawing 2 is the schematic diagram of pressure regulating device of the present invention;
accompanying drawing 3 is the schematic flow sheet of pressure regulation method of the present invention.
Detailed description of the invention
below in conjunction with accompanying drawing, preferred embodiment of the present invention is described in detail, can be easier to make advantages and features of the invention be those skilled in the art will recognize that thus make more explicit defining to protection scope of the present invention.
figure 1 shows that the pressure regulating device of low-pressure injection molding sealed in unit of the present invention.Low-pressure injection molding sealed in unit also comprises the glue melting cylinder with inner chamber and the gum-filling mechanism with intracavity inter-connection.Glue melting cylinder is provided with pressure regulator valve, and pressure regulator valve has opening and spool, the cone top part that spool comprises body, extends towards opening from one end of body, and the area in the cross section of cone top part is along reducing gradually towards the direction of opening from body.Be formed with a refluxing opening or cone top part between cone top part and opening completely by closure of openings, refluxing opening is communicated with the inner chamber of glue melting cylinder and the injecting glue runner of gum-filling mechanism can be back in the inner chamber of glue melting cylinder to make the glue in the injecting glue runner of gum-filling mechanism.The glue capacity of returns entered from the injecting glue runner of gum-filling mechanism glue melting cylinder can be changed by regulating the size of refluxing opening, thus regulate the injection pressure of gum-filling mechanism.
shown in composition graphs 1, pressure regulating device of the present invention comprises linear stepping motor 8, controller 7 and pressure sensor 6.Wherein, the motor output shaft of linear stepping motor 8 and spool are fixedly connected to drive spool to move, with make cone top part near and away from opening, thus regulate the size of refluxing opening, change glue capacity of returns.Controller 7 in the present embodiment adopts PLC.The linear stepping motor that the present embodiment adopts, or claim linear stepping motor, be by magnet rotor iron core by with the pulse electromagnetic field interactions produced by stator and produce rotation, and be linear movement at motor internal convert rotational motion.Linear stepping motor has driver 81, and driver is an electrical control gear being used for running stepper motor, and it comprises power supply, logic sequencer, switch element and the variable-frequency pulse source for determining step rate.Pressure sensor is arranged in the injecting glue runner of gum-filling mechanism, for detecting the actual injection pressure value of gum-filling mechanism.PLC is electrically connected mutually with pressure sensor and driver respectively.
shown in composition graphs 2, the force value that setting is expected also prestores in controller; Pressure sensor detects the actual injection pressure value in the injecting glue runner of gum-filling mechanism; Controller receives actual injection pressure value and compares with the expectation injection pressure value preset, according to actual injection pressure value and the difference expecting injection pressure value, draw the glue capacity of returns of expectation, the desired orientation of the expectation size of refluxing opening and spool movement and desired distance, and control and drive system produces corresponding pulse frequency; Driver drives motor output shaft moves the distance of expectation by the direction expected mutually, and the cone top part of spool thereupon movement makes refluxing opening be adjusted to the size of expectation, regulates glue capacity of returns to reach the object of the injection pressure in the injecting glue runner regulating gum-filling mechanism.
be different from prior art the mode adopting the movement of air cylinder driven spool, linear stepping motor is adopted in the present invention, according to required injection pressure, controller draws the moving direction of spool and displacement and control and drive system produces corresponding pulse frequency accordingly, driver gets final product accurate drive motors output shaft moves expectation distance by the direction expected, accurately can control size and the glue capacity of returns of refluxing opening, thus accurately control the injection pressure in the injecting glue runner of gum-filling mechanism.By being arranged on the pressure sensor of the injecting glue runner of gum-filling mechanism, can Real-Time Monitoring injection pressure, thus realize controlling the real-time accurate of injection pressure.Fundamentally to solve in prior art because of the impact of origin fluctuation on injection pressure, achieve accurate low-pressure glue-injection.
above-described embodiment for technical conceive of the present invention and feature are described, is only a kind of preferred embodiment, its object is to person skilled in the art and can understand content of the present invention and implement according to this, can not limit protection scope of the present invention with this.The equivalent transformation that all Spirit Essences according to the present invention are done or modification, all should be encompassed within protection scope of the present invention.
Claims (6)
1. the pressure regulating device of a low-pressure injection molding sealed in unit, low-pressure injection molding sealed in unit also comprises the glue melting cylinder with inner chamber and the gum-filling mechanism with described intracavity inter-connection, described glue melting cylinder is provided with pressure regulator valve, described pressure regulator valve has opening and spool, described spool comprises body, from the cone top part that one end of described body extends towards described opening, the area of section of described cone top part is along reducing gradually towards the direction of opening from body, refluxing opening is formed between described cone top part and opening, described refluxing opening is communicated with the inner chamber of glue melting cylinder and the injecting glue runner of gum-filling mechanism and makes glue in injecting glue runner, be back to glue melting cylinder, it is characterized in that: described pressure regulating device comprises the linear stepping motor with driver, the motor output shaft of described linear stepping motor is connected with spool and the pulse frequency that can produce according to driver moves the distance of expectation to regulate the size of refluxing opening by the direction expected.
2. pressure regulating device according to claim 1, it is characterized in that: described pressure regulating device also comprises controller, described controller draws the desired orientation of spool movement and desired distance according to the difference of actual injection pressure value in the expectation injection pressure value of setting and glue melting cylinder and control and drive system produces the pulse frequency expected.
3. pressure regulating device according to claim 2, is characterized in that: described controller is electrically connected mutually with driver.
4. pressure regulating device according to claim 2, is characterized in that: described pressure regulating device also comprises the pressure sensor for detecting the actual injection pressure value in glue melting cylinder be arranged in described glue melting cylinder, and described pressure sensor is electrically connected mutually with controller.
5. pressure regulating device according to claim 2, is characterized in that: described controller is PLC.
6. a pressure regulation method for the pressure regulating device according to any one of claim 1 to 5, is characterized in that, comprises the steps: that injection pressure value is expected in setting; Detect the actual injection pressure value in glue melting cylinder; According to the difference expecting injection pressure value and actual injection pressure value, draw desired orientation and the desired distance of spool movement, driver produces the pulse frequency expected; According to the pulse frequency expected, the motor output shaft of linear stepping motor moves the distance of expectation by the direction expected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510136149.7A CN104859118B (en) | 2015-03-26 | 2015-03-26 | A kind of pressure regulating device and pressure regulation method of low-pressure injection molding sealed in unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510136149.7A CN104859118B (en) | 2015-03-26 | 2015-03-26 | A kind of pressure regulating device and pressure regulation method of low-pressure injection molding sealed in unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104859118A true CN104859118A (en) | 2015-08-26 |
| CN104859118B CN104859118B (en) | 2017-07-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510136149.7A Active CN104859118B (en) | 2015-03-26 | 2015-03-26 | A kind of pressure regulating device and pressure regulation method of low-pressure injection molding sealed in unit |
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| CN (1) | CN104859118B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106984499A (en) * | 2017-02-20 | 2017-07-28 | 江苏中兴派能电池有限公司 | Extrusion coated die pressure control device |
| CN110255484A (en) * | 2019-07-04 | 2019-09-20 | 广东柏华包装股份有限公司 | A kind of glue cylinder and its into gluing method |
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| JPH1119996A (en) * | 1997-06-27 | 1999-01-26 | Toyo Mach & Metal Co Ltd | Injection molding machine and injection molding method therefor |
| US7281918B2 (en) * | 2004-12-15 | 2007-10-16 | Hsiao Ting Lu | Injection molding system |
| CN201493227U (en) * | 2009-07-22 | 2010-06-02 | 肖根福罗格注胶技术(苏州工业园区)有限公司 | Piston type measurement gluing machine |
| CN104148239A (en) * | 2014-08-06 | 2014-11-19 | 浏阳市颐和隆烟花集团有限公司 | Dispensing valve for dispensing of molding fireworks |
| CN104354260A (en) * | 2014-11-21 | 2015-02-18 | 常熟康尼格科技有限公司 | Constant-pressure glue injecting equipment based on low-pressure injection molding |
-
2015
- 2015-03-26 CN CN201510136149.7A patent/CN104859118B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1119996A (en) * | 1997-06-27 | 1999-01-26 | Toyo Mach & Metal Co Ltd | Injection molding machine and injection molding method therefor |
| US7281918B2 (en) * | 2004-12-15 | 2007-10-16 | Hsiao Ting Lu | Injection molding system |
| CN201493227U (en) * | 2009-07-22 | 2010-06-02 | 肖根福罗格注胶技术(苏州工业园区)有限公司 | Piston type measurement gluing machine |
| CN104148239A (en) * | 2014-08-06 | 2014-11-19 | 浏阳市颐和隆烟花集团有限公司 | Dispensing valve for dispensing of molding fireworks |
| CN104354260A (en) * | 2014-11-21 | 2015-02-18 | 常熟康尼格科技有限公司 | Constant-pressure glue injecting equipment based on low-pressure injection molding |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106984499A (en) * | 2017-02-20 | 2017-07-28 | 江苏中兴派能电池有限公司 | Extrusion coated die pressure control device |
| CN110255484A (en) * | 2019-07-04 | 2019-09-20 | 广东柏华包装股份有限公司 | A kind of glue cylinder and its into gluing method |
| CN110255484B (en) * | 2019-07-04 | 2024-02-20 | 广东柏华包装股份有限公司 | Rubber cylinder and rubber feeding method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104859118B (en) | 2017-07-11 |
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Address after: 215552 Guanghua Road 22, Xinzhuang Town, Suzhou, Jiangsu, Changshou City Applicant after: SUZHOU KONIG ELECTRONIC TECHNOLOGY CO., LTD. Address before: 215552 Guanghua Road 22, Xinzhuang Town, Suzhou, Jiangsu, Changshou City Applicant before: Changshu Konig Technologies Co., Ltd. |
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