CN102431116A - Injection molding machine with subdivision controllable glue injection pressure and using method for injection molding machine - Google Patents
Injection molding machine with subdivision controllable glue injection pressure and using method for injection molding machine Download PDFInfo
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- CN102431116A CN102431116A CN2011103192442A CN201110319244A CN102431116A CN 102431116 A CN102431116 A CN 102431116A CN 2011103192442 A CN2011103192442 A CN 2011103192442A CN 201110319244 A CN201110319244 A CN 201110319244A CN 102431116 A CN102431116 A CN 102431116A
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Abstract
The invention discloses an injection molding machine with subdivision controllable glue injection pressure and a using method for the injection molding machine. The injection molding machine comprises a frame, an electrical cabinet, an injection system, a die assembly system, a hydraulic system, an electrical control system, a lubricating system, a heating and cooling system and a safety protection and inspection system, wherein the injection system comprises a glue injection pressure execution mechanism; the electrical control system comprises a glue injection pressure control mechanism; more than two glue injection pressure regulating valves, and a glue injection pressure electromagnetic valve and a pressure meter which are matched with the pressure regulating valves are arranged on the glue injection pressure control mechanism; and an air pipe is connected between the glue injection pressure control mechanism and the glue injection pressure execution mechanism. Compared with the conventional injection molding machine which is controlled by only a section of pressure, the injection molding machine with the subdivision controllable glue injection pressure has break-through innovation, overcomes defects caused by the control of only a section of pressure, makes glue more accurately injected, and has a wider using range and a higher glue injection success rate.
Description
Technical field
The present invention relates to the injection machine field, particularly a kind of injection machine and method for using thereof of injecting glue pressure sectional control.
Background technology
The low-pressure injection molding facility have can one-shot forming complicated, accurate plastic products of size of external form or the precise electronic components and parts are sealed; The product of sealing with the low-pressure injection molding machine can reach higher water proofing property (classification of waterproof IP68 level), fire protection flame retarding (flame retardant rating UL94-VO), the feature of environmental protection, particularly pressure, temperature sensitive electronic component is had excellent protection property. be widely used in national defence, electromechanics, automobile, communications and transportation, building materials, packing, agricultural, culture, education and public health and people's daily life every field.In today that plastics industry develops rapidly, no matter the low-pressure injection molding machine quantitatively or all occupy critical role on the kind, it produces the 20%--30% that sum accounts for whole plastic molding equipment or electronic product; Increase the soonest thereby become in the present plastics machinery, seal one of maximum machine of precision electronic element usage quantity, yet low-pressure injection molding machine operating pressure in the market is merely one section control; Injecting glue pressure can not conversion when injecting glue; Can only produce relatively simple product, occur bad order when producing complicated product easily, like problems such as shrink, steam bubble, injecting glue are discontented; Influence the performance of precision electronic element simultaneously easily, cause product rejection or bad; So we press for to existing and the low-pressure injection molding machine improve, to satisfy the increasingly high market demand.
Summary of the invention
The objective of the invention is to overcome the defective of above-mentioned traditional injection moulding machine, a kind of injection machine and method for using thereof of injecting glue pressure sectional control is provided, method for using provided by the invention mainly is the method for pressure segmentation control.
For achieving the above object, the present invention adopts following technical scheme: a kind of injection machine of injecting glue pressure sectional control comprises frame, electric appliance box; Injecting systems, matched moulds system, hydraulic system; Electricity vapour control system, lubricating system, heating and cooling system; Safeguard protection and check system, special, said injecting systems comprises injecting glue pressure executing agency; Said electric vapour control system comprises the injecting glue pressure control mechanism, and said injecting glue pressure control mechanism is provided with two above injecting glue pressure-regulating valves, and cooperates the injecting glue pressure solenoid valve and the Pressure gauge of pressure-regulating valve, is connected with steam pipe between said injecting glue pressure control mechanism and the injection pressure executing agency.
Specifically; Said injecting glue pressure control mechanism specifically comprises first section pressure-regulating valve, cooperate the first section pressure solenoid valve and the Pressure gauge of first section pressure-regulating valve; Second section pressure-regulating valve, the second section pressure solenoid valve that cooperates second section pressure-regulating valve and Pressure gauge, cooperate the 3rd section pressure solenoid valve and Pressure gauge of the 3rd section pressure-regulating valve at the 3rd section pressure-regulating valve.
Specifically; Said injecting glue pressure executing agency is a plunger type executing agency, and said plunger type executing agency comprises into rifle cylinder, plunger body, melten gel jar, plunger rod, driving member and power executive item, states the melten gel jar and is connected with plunger body; And the melten gel jar is positioned at the plunger body top; Said power executive item joint pin stopper rod one end, the plunger rod other end arrive at the plunger body upper end after running through the melten gel jar, and said plunger body lower end is provided with plastic emitting rifle head; Saidly advance the rifle cylinder and plunger body cooperates through driving member, can seal fully after said plunger rod gets into plunger body.
Specifically, said power executive item is the injecting glue cylinder.
Specifically, said power executive item is an injecting glue electricity cylinder
Specifically; Said injecting glue pressure executing agency is a gear pump type executing agency; Said gear pump type executing agency comprises gear pump, and is positioned at the steam-operating safety valve on gear pump next door, and the motor of mate gear pump; And being arranged on gear pump type executing agency inner higher-pressure region and low-pressure area, said steam-operating safety valve is provided with air intake.
Specifically, when said injecting glue pressure executing agency is a plunger type executing agency, when said power executive item is the injecting glue cylinder; The method of pressure segmentation control is following in the injection machine use of the present invention: when product needs multistage injecting glue pressure, set the vapour pressure of different injecting glue section injecting glue control valves, need to divide several sections injecting glues just to set the vapour pressure of several sections injecting glue control valves; First pressure solenoid valve quits work after first injecting glue period accomplishes; Second section pressure solenoid valve started working, and this moment, the thrust of injecting glue cylinder changed the also corresponding change of injecting glue pressure under the effect of second section pressure-regulating valve; Second pressure solenoid valve quits work after second injecting glue period accomplishes; The 3rd section pressure solenoid valve started working, and this moment, the thrust of injecting glue cylinder changed the also corresponding change of injecting glue pressure under the effect of the 3rd section pressure-regulating valve; Principle with three sections more than three sections is the same, accomplishes up to the product injecting glue.
Specifically; When said injecting glue pressure executing agency is a plunger type executing agency, when said power executive item was injecting glue electricity cylinder, the method for pressure segmentation control was following in the injection machine use of the present invention: when product needs multistage injecting glue pressure; Set the thrust of different injecting glue period injecting glue electricity cylinders; Divide several sections injecting glues just to set several sections thrusts, the electric cylinder thrust when electric cylinder thrust automatically switches into second section of prior setting after first injecting glue period accomplishes, the also corresponding change of injecting glue pressure; Electric cylinder thrust when electric cylinder thrust automatically switches into the 3rd section of prior setting after second injecting glue period accomplishes; The also corresponding change of injecting glue pressure, the principle with three sections more than three sections is the same, accomplishes up to the product injecting glue.
Specifically, when said injecting glue pressure executing agency was gear pump type executing agency, the method for pressure segmentation control was following in the injection machine use of the present invention: when product needs multistage injecting glue pressure; Set the vapour pressure of different injecting glue section injecting glue control valves; The vapour pressure of dividing several sections injecting glues just to set several sections injecting glue control valves, first pressure solenoid valve quits work after first injecting glue period accomplishes, and second section pressure solenoid valve started working; This moment, the input vapour pressure of steam-operating safety valve changed under the effect of second section pressure-regulating valve; The also corresponding change of injecting glue pressure, second pressure solenoid valve quits work after second injecting glue period accomplishes, and the 3rd section pressure solenoid valve started working; Steam-operating safety valve input this moment vapour pressure changes under the effect of the 3rd section pressure-regulating valve; The also corresponding change of injecting glue pressure, the principle with three sections more than three sections is the same, accomplishes up to the product injecting glue.
Than traditional one section pressure controlled injection machine that has only, the injection machine of a kind of injecting glue pressure sectional control of the present invention has breakthrough innovation; Overcome the defective of having only one section pressure control to bring; Its injecting glue is more accurate, and the scope of application is wider, and injecting glue has higher success rate.
Description of drawings
Structural representation when Fig. 1 is plunger type executing agency for injecting glue pressure of the present invention executing agency;
Injecting glue pressure control mechanism electrical block diagram when Fig. 2 is plunger type executing agency for injecting glue pressure of the present invention executing agency;
Plunger type executing agency structural representation when Fig. 3 is plunger type executing agency for injecting glue pressure of the present invention executing agency;
Structural representation when Fig. 4 is gear pump type executing agency for injecting glue pressure of the present invention executing agency;
Injecting glue pressure control mechanism electrical block diagram when Fig. 5 is gear pump type executing agency for injecting glue pressure of the present invention executing agency;
Gear pump type executing agency structural representation when Fig. 6 is gear pump type executing agency for injecting glue pressure of the present invention executing agency.
The specific embodiment
Technology contents for a better understanding of the present invention provides specific embodiment below in conjunction with accompanying drawing, and the present invention is further specified, and this time accompanying drawing has all been simplified the product concrete structure, only protects the relevant structure of innovative point.Please referring to figs. 1 through Fig. 6, a kind of injection machine of injecting glue pressure sectional control comprises frame, electric appliance box; Injecting systems, matched moulds system, hydraulic system; Electricity vapour control system, lubricating system, heating and cooling system; Safeguard protection and check system, special, said injecting systems comprises injecting glue pressure executing agency 11; Said electric vapour control system comprises injecting glue pressure control mechanism 10, and said injecting glue pressure control mechanism 10 is provided with two above injecting glue pressure-regulating valves, and cooperates the injecting glue pressure solenoid valve and the Pressure gauge of pressure-regulating valve, is connected with steam pipe 12 between said injecting glue pressure control mechanism 10 and the injecting glue pressure executing agency 11.
In the present embodiment; Said injecting glue pressure control mechanism 10 specifically comprises first section pressure-regulating valve 1, cooperate the first section pressure solenoid valve 2 and the Pressure gauge 3 of first section pressure-regulating valve; Second section pressure-regulating valve 4, second section pressure solenoid valve 5 and 6, the three sections pressure-regulating valves 7 of Pressure gauge cooperating second section pressure-regulating valve, the 3rd section pressure solenoid valve 8 that cooperates the 3rd section pressure-regulating valve and Pressure gauge 9.
Said pressure solenoid valve is used for controlling the action of injecting glue pressure, and the vapour pressure when said pressure-regulating valve is used for setting and regulate injecting glue pressure shows pressure through Pressure gauge at last.
When needs are set the injecting glue pressure of different periods, carry out machine 11 through injecting glue pressure control mechanism 10 control injecting glue pressure and realize change different injecting glue period injecting glue pressure, because of injecting glue pressure executing agency difference, thereby provide following three kinds of specific embodiments.
Embodiment one: referring to figs. 1 through Fig. 3; Said injecting glue pressure executing agency 11 is a plunger type executing agency; Said plunger type executing agency (of Fig. 3) comprises into rifle cylinder 13, plunger body 14, melten gel jar 15, plunger rod 16, driving member 18 and injecting glue cylinder 17; State melten gel jar 15 and be connected, and melten gel jar 15 is positioned at plunger body 14 tops, said injecting glue cylinder 17 joint pin stopper rods 16 1 ends with plunger 14 bodies; Plunger rod 16 other ends arrive at plunger body 14 upper ends after running through melten gel jar 15; Said plunger body 14 lower ends are provided with plastic emitting rifle head 19, saidly advance rifle cylinder 13 and cooperate through driving member 18 with plunger body 14, can seal fully after said plunger rod 16 gets into plunger bodies 14.
When product only needed one section injecting glue pressure, the vapour pressure of setting first section injecting glue control valve 1 before the injecting glue was controlled the thrust of injecting glue cylinder 17, the air pressure of Pressure gauge 3 display settings.First section electromagnetic pressure control valve 2 work during work, injecting glue cylinder 17 promotes plunger rod 16, and plunger rod 16 gets into post match body 14 backs and produces sealing effectiveness; Plunger rod 16 moves under the thrust of injecting glue cylinder 17; The sizing material 20 that has melted in the plunger body 14 this moment produces pressure and injects mould; Plunger rod moves on when mould inner pressure descends; Do not readvance to plunger rod 16 when die cavity internal pressure and injecting glue cylinder 17 equates, injecting glue pressure remains unchanged to arriving product injection moulding completion.
When product needs multistage injecting glue pressure, set the vapour pressure of different injecting glue section injecting glue control valves, need to divide several sections injecting glues just to set the vapour pressure of several sections injecting glue control valves; First pressure solenoid valve 2 quits work after first injecting glue period accomplishes; Second section pressure electromagnetic device 5 valve started working, and the thrust of injecting glue cylinder 17 changes the also corresponding change of injecting glue pressure under the effect of second section pressure-regulating valve 4 at this moment; Second pressure solenoid valve 5 quits work after second injecting glue period accomplishes; The 3rd section pressure solenoid valve 8 started working, and the thrust of injecting glue cylinder 17 changes the also corresponding change of injecting glue pressure under the effect of the 3rd section pressure-regulating valve 7 at this moment; Principle with three sections more than three sections is the same, accomplishes up to the product injecting glue.
Embodiment two: present embodiment two is that the power executive item among the embodiment one is become injecting glue electricity cylinder by the injecting glue cylinder, and present embodiment is equally referring to figs. 1 through Fig. 3.
When product only needs one section injecting glue pressure, set the thrust of first section injecting glue injecting glue electricity cylinder during the time before the injecting glue, injecting glue electricity cylinder promotes plunger rod 16 during work, and plunger rod 16 gets into plunger body 14 backs and produces sealing effectiveness.Plunger rod 16 moves under the thrust of injecting glue electricity cylinder; The sizing material that has melted in the plunger body 14 this moment produces pressure and injects mould; After product was filled with, plunger rod 16 did not readvance when die cavity internal pressure and electric cylinder thrust equated, injecting glue pressure remains unchanged to accomplishing to the product injection moulding.
When product needs multistage injecting glue pressure, set the thrust of different injecting glue period injecting glue electricity cylinders, divide several sections injecting glues just to set several sections thrusts; Electric cylinder thrust when electric cylinder thrust automatically switches into second section of prior setting after first injecting glue period accomplishes; The also corresponding change of injecting glue pressure, the electric cylinder thrust when electric cylinder thrust automatically switches into the 3rd section of prior setting after second injecting glue period accomplishes, the also corresponding change of injecting glue pressure; Principle with three sections more than three sections is the same, accomplishes up to the product injecting glue.
Embodiment three: with reference to Fig. 4 to Fig. 6; Said injecting glue pressure executing agency 11 is a gear pump type executing agency; Said gear pump type executing agency (like Fig. 6) comprises gear pump 23, and is positioned at the steam-operating safety valve 22 on gear pump 23 next doors, and the motor 21 of mate gear pump 23; And being arranged on gear pump type executing agency inner higher-pressure region 25 and low-pressure area 26, said steam-operating safety valve is provided with air intake 24.
When product only needs one section injecting glue pressure; The vapour pressure of setting first section injecting glue pressure-regulating valve 1 before the injecting glue is controlled the input vapour pressure of steam-operating safety valve, and this moment, low-pressure area 26 sealed with higher-pressure region 25, and motor 21 driven gear pumps 23 rotate during injecting glue; Sizing material produces pressure through gear pump 23; When injecting glue pressure was higher than steam-operating safety valve 22 input vapour pressures, the pressure of sizing material backed down the steam-operating safety valve, and higher-pressure region 25 is unimpeded under the effect of steam-operating safety valve 22 with low-pressure area 26; This moment, the sizing material of higher-pressure region 25 flowed into low-pressure area 26 pressure releases; Sealing under higher-pressure region 25 and the effect of low-pressure area 26 at safety valve when injecting glue pressure is lower than steam-operating safety valve 22 input vapour pressures, sealing that does not stop between higher-pressure region 25 and the low-pressure area 26 during injecting glue and connection remain unchanged injecting glue pressure, accomplish up to the product injecting glue.
When product needs multistage injecting glue pressure, set the vapour pressure of different injecting glue section injecting glue control valves, divide several sections injecting glues just to set the vapour pressure of several sections injecting glue control valves; First pressure solenoid valve 2 quits work after first injecting glue period accomplishes; Second section pressure solenoid valve 5 started working, and the input vapour pressure of steam-operating safety valve 22 changes the also corresponding change of injecting glue pressure under the effect of second section pressure-regulating valve 4 at this moment; Second pressure solenoid valve 5 quits work after second injecting glue period accomplishes; The 3rd section pressure solenoid valve 8 started working, and this moment, steam-operating safety valve 22 input vapour pressures changed the also corresponding change of injecting glue pressure under the effect of the 3rd section pressure-regulating valve 7; Principle with three sections more than three sections is the same, accomplishes up to the product injecting glue.
Than traditional one section pressure controlled injection machine that has only, the injection machine of a kind of injecting glue pressure sectional control of the present invention has breakthrough innovation; Overcome the defective of having only one section pressure control to bring; Its injecting glue is more accurate, and the scope of application is wider, and injecting glue has higher success rate.
Below the present invention has been done a detailed description, the foregoing description is merely preferred embodiment of the present invention, can not limit practical implementation scope of the present invention, and all the present invention of accordinging to do impartial the variation and modification, all in rights protection scope of the present invention.
Claims (9)
1. the injection machine of an injecting glue pressure sectional control comprises frame, electric appliance box; Injecting systems, matched moulds system, hydraulic system; Electricity vapour control system, lubricating system, heating and cooling system; Safeguard protection and check system is characterized in that: said injecting systems comprises injecting glue pressure executing agency, and said electric vapour control system comprises the injecting glue pressure control mechanism; Said injecting glue pressure control mechanism is provided with two above injecting glue pressure-regulating valves, reaches the injecting glue pressure solenoid valve and the Pressure gauge that cooperate pressure-regulating valve, is connected with steam pipe between said injecting glue pressure control mechanism and the injecting glue pressure executing agency.
2. the injection machine of controlling according to the said a kind of injecting glue pressure sectional of claim 1; It is characterized in that: said injecting glue pressure control mechanism specifically comprises first section pressure-regulating valve, cooperate the first section pressure solenoid valve and the Pressure gauge of first section pressure-regulating valve; Second section pressure-regulating valve, the second section pressure solenoid valve that cooperates second section pressure-regulating valve and Pressure gauge, cooperate the 3rd section pressure solenoid valve and Pressure gauge of the 3rd section pressure-regulating valve at the 3rd section pressure-regulating valve.
3. the injection machine of controlling according to the said a kind of injecting glue pressure sectional of claim 1; It is characterized in that: said injecting glue pressure executing agency is a plunger type executing agency, and said plunger type executing agency comprises into rifle cylinder, plunger body, melten gel jar, plunger rod, driving member and power executive item, states the melten gel jar and is connected with plunger body; And the melten gel jar is positioned at the plunger body top; Said power executive item joint pin stopper rod one end, the plunger rod other end arrive at the plunger body upper end after running through the melten gel jar, and said plunger body lower end is provided with plastic emitting rifle head; Saidly advance the rifle cylinder and plunger body cooperates through driving member, can seal fully after said plunger rod gets into plunger body.
4. according to the injection machine of the said a kind of injecting glue pressure sectional control of claim 3, it is characterized in that: said power executive item is the injecting glue cylinder.
5. according to the injection machine of the said a kind of injecting glue pressure sectional control of claim 3, it is characterized in that: said power executive item is an injecting glue electricity cylinder.
6. the injection machine of controlling according to the said a kind of injecting glue pressure sectional of claim 1; It is characterized in that: said injecting glue pressure executing agency is a gear pump type executing agency; Said gear pump type executing agency comprises gear pump, and is positioned at the steam-operating safety valve on gear pump next door, and the motor of mate gear pump; And being arranged on gear pump type executing agency inner higher-pressure region and low-pressure area, said steam-operating safety valve is provided with air intake.
7. the method for using like the said injection machine of claim 4 is characterized in that: set the vapour pressure of different injecting glue section injecting glue control valves, need to divide several sections injecting glues just to set the vapour pressure of several sections injecting glue control valves; First pressure solenoid valve quits work after first injecting glue period accomplishes; Second section pressure solenoid valve started working, and this moment, the thrust of injecting glue cylinder changed the also corresponding change of injecting glue pressure under the effect of second section pressure-regulating valve; Second pressure solenoid valve quits work after second injecting glue period accomplishes; The 3rd section pressure solenoid valve started working, and this moment, the thrust of injecting glue cylinder changed the also corresponding change of injecting glue pressure under the effect of the 3rd section pressure-regulating valve; Principle with three sections more than three sections is the same, accomplishes up to the product injecting glue.
8. method for using like the said injection machine of claim 5; It is characterized in that: the thrust of setting different injecting glue period injecting glue electricity cylinders; Divide several sections injecting glues just to set several sections thrusts, the electric cylinder thrust when electric cylinder thrust automatically switches into second section of prior setting after first injecting glue period accomplishes, the also corresponding change of injecting glue pressure; Electric cylinder thrust when electric cylinder thrust automatically switches into the 3rd section of prior setting after second injecting glue period accomplishes; The also corresponding change of injecting glue pressure, the principle with three sections more than three sections is the same, accomplishes up to the product injecting glue.
9. the method for using like the said injection machine of claim 6 is characterized in that: set the vapour pressure of different injecting glue section injecting glue control valves, divide several sections injecting glues just to set the vapour pressure of several sections injecting glue control valves; First pressure solenoid valve quits work after first injecting glue period accomplishes; Second section pressure solenoid valve started working, and this moment, the input vapour pressure of steam-operating safety valve changed the also corresponding change of injecting glue pressure under the effect of second section pressure-regulating valve; Second pressure solenoid valve quits work after second injecting glue period accomplishes; The 3rd section pressure solenoid valve started working, and steam-operating safety valve input this moment vapour pressure changes the also corresponding change of injecting glue pressure under the effect of the 3rd section pressure-regulating valve; Principle with three sections more than three sections is the same, accomplishes up to the product injecting glue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103192442A CN102431116A (en) | 2011-10-20 | 2011-10-20 | Injection molding machine with subdivision controllable glue injection pressure and using method for injection molding machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103192442A CN102431116A (en) | 2011-10-20 | 2011-10-20 | Injection molding machine with subdivision controllable glue injection pressure and using method for injection molding machine |
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| CN102431116A true CN102431116A (en) | 2012-05-02 |
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| CN2011103192442A Pending CN102431116A (en) | 2011-10-20 | 2011-10-20 | Injection molding machine with subdivision controllable glue injection pressure and using method for injection molding machine |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103407131A (en) * | 2013-06-18 | 2013-11-27 | 常熟康尼格科技有限公司 | Two-section glue injection pressure type low-pressure glue injection machine |
| CN104835628A (en) * | 2015-04-27 | 2015-08-12 | 国家电网公司 | Electrical high voltage oil-filled mutual inductor leakage blocking device using sealing cover and application method thereof |
-
2011
- 2011-10-20 CN CN2011103192442A patent/CN102431116A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103407131A (en) * | 2013-06-18 | 2013-11-27 | 常熟康尼格科技有限公司 | Two-section glue injection pressure type low-pressure glue injection machine |
| CN103407131B (en) * | 2013-06-18 | 2015-06-03 | 常熟康尼格科技有限公司 | Two-section glue injection pressure type low-pressure glue injection machine |
| CN104835628A (en) * | 2015-04-27 | 2015-08-12 | 国家电网公司 | Electrical high voltage oil-filled mutual inductor leakage blocking device using sealing cover and application method thereof |
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Application publication date: 20120502 |