CN104354260A - Constant-pressure glue injecting equipment based on low-pressure injection molding - Google Patents
Constant-pressure glue injecting equipment based on low-pressure injection molding Download PDFInfo
- Publication number
- CN104354260A CN104354260A CN201410673515.8A CN201410673515A CN104354260A CN 104354260 A CN104354260 A CN 104354260A CN 201410673515 A CN201410673515 A CN 201410673515A CN 104354260 A CN104354260 A CN 104354260A
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- CN
- China
- Prior art keywords
- injecting glue
- section
- glue
- constant voltage
- pressure
- 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
- B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
- B29C45/53—Means for plasticising or homogenising the moulding material or forcing it into the mould using injection ram or piston
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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
- B29C45/72—Heating or cooling
- B29C45/74—Heating or cooling of the injection unit
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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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The invention provides constant-pressure glue injecting equipment based on low-pressure injection molding. The constant-pressure glue injecting equipment comprises a plastifying section and a glue injecting section, wherein the plastifying section comprises a movable rod arranged inside the plastifying section and a runner communicated with the glue injecting section, the movable rod can be used for closing the runner so that the plastifying section and the glue injecting section are separated and further the pressure of the glue injecting section is kept constant. The constant-pressure glue injecting equipment has the advantage that the runner is closed by the movable rod so that the plastifying section and the glue injecting section are separated and further the glue injecting section is kept vacuum and the pressure of the glue injecting section is kept constant, and the pressure loss is reduced, so that the melted glue is prevented from reflowing to influence the glue injecting quality in a glue injecting process.
Description
Technical field
The present invention relates to low-pressure injection molding field, particularly relate to a kind of constant voltage glue injection equipment based on low-pressure injection molding.
Background technology
In low-pressure injection molding equipments all at present, the fixing quantity for injecting glue amount and injection pressure is the individual technical barrier needing to be broken through always, does not temporarily also have a kind of mode really can realize quantitative constant voltage injecting glue.In present technology, be the object being simultaneously used for reaching almost quantitative constant voltage injecting glue by gear pump and safety valve,
There are two gears gear pump inside; the liquid sizing material coming from injection machine enters in the middle of two gears at suction inlet; and be full of this space; along with the rotation of gear is along housing motion; finally discharge when two gears meshing; due to the continuous engagement of gear; this phenomenon will recur; thus will form a continuous discharge rate at delivery side of pump, pump often turns around, and the amount of discharge is the same; liquid sizing material internal pressure is controlled by the protective effect of safety valve; therefore certain at gear pump rotating speed, under the condition that air pressure is certain, the logical object enough reaching quantitative constant voltage.
Find through actual test, this technology really can not realize quantitative constant voltage injecting glue, and it can cause a lot of problem:
(1) in injecting glue section, sizing material can not keep vacuum, has the pressure loss, causes sizing material to reflux, and makes to produce bubble in injecting glue process, damages product quality.If the constant voltage retention time is too short, because the effect of expanding with heat and contract with cold causes product to shrink;
(2) in mould may there is too much or very few phenomenon in sizing material, can cause injecting glue amount different, it can affect the quality of product, and product side too much can be made to produce burr, cross that I haven't seen you for ages makes do not have complete filler gum in mould, product has the phenomenon of shrink;
(3), when controlling injecting glue, need to utilize sebific duct to carry glue amount, but temperature distributing disproportionation in sebific duct, sizing material actual temperature is difficult to control, and the phenomenon damaging product also can be caused to occur.
Summary of the invention
Technical problem to be solved by this invention is, provides a kind of constant voltage glue injection equipment based on low-pressure injection molding, and it can keep, and constant voltage injecting glue, quantitative glue injection are accurate, saving glue amount, working stability, long service life, provide product quality.
In order to solve the problem, the invention provides a kind of constant voltage glue injection equipment based on low-pressure injection molding, comprise fluxing zone and injecting glue section, described fluxing zone comprises carriage release lever and the runner be communicated with described injecting glue section that is arranged on described fluxing zone inside, described carriage release lever can be used for closed described runner, to make described fluxing zone and described injecting glue section cut off, and then described injecting glue section is made to keep constant voltage.
Further, include a Metal-magnetic needle at described fluxing zone and injecting glue section, described Metal-magnetic needle is for heating described fluxing zone and injecting glue section.
Further, described Metal-magnetic needle is the magnetic induction coil being wound around described fluxing zone and described injecting glue section.
Further, described injecting glue section comprises injecting glue plunger and ejecting gun, promotes described injecting glue plunger and described melten gel can be squeezed into described ejecting gun, and described ejecting gun is used for described melten gel to inject destination apparatus.
Further, described glue injection equipment also comprises a cylinder, and described cylinder is connected with described injecting glue section, moves for promoting described injecting glue plunger.
Further, described glue injection equipment also comprises a grating scale be connected with described injecting glue plunger, and described grating scale is used for measuring injecting glue plunger displacement in real time, and then controls injecting glue amount.
Further, described ejecting gun comprises a spring, and sprays road and one and described spring contact and the needle-valve coaxial with described injection road, and described needle-valve can overcome the pretightning force of described spring and allow melten gel to enter described injection road.
Further, described carriage release lever is screw rod.
An advantage of the present invention is, closes described runner by carriage release lever, cuts off to make described fluxing zone and described injecting glue section, and then make described injecting glue section keep vacuum, keep constant voltage, reduce the pressure loss, make in injecting glue process, avoid melten gel backflow, affect injecting glue quality.
Another advantage of the present invention is, is obtained the displacement signal of injection piston, accurately controls the opening and closing of injection piston thrust unit, and then accurately control injecting glue amount by the grating scale be connected on injection piston.Meanwhile, described ejecting gun adopts pressure from the injection of main regulation melten gel, sprays and is controlled by pressure size, realize adaptive control ability.
Another advantage of the present invention is, to be melted by sizing material and keep melt adhesive temperature by Metal-magnetic needle, avoids melt adhesive temperature to change and causes the phenomenon damaging product to occur.
Accompanying drawing explanation
Fig. 1 is the perspective view of the constant voltage glue injection equipment that the present invention is based on low-pressure injection molding;
Fig. 2 is the schematic cross-section of the constant voltage glue injection equipment that the present invention is based on low-pressure injection molding;
Fig. 3 is the structural representation of ejecting gun of the present invention.
Detailed description of the invention
Elaborate below in conjunction with the detailed description of the invention of accompanying drawing to the constant voltage glue injection equipment based on low-pressure injection molding provided by the invention.
See Fig. 1 and Fig. 2, the constant voltage glue injection equipment that the present invention is based on low-pressure injection molding comprises fluxing zone 1 and injecting glue section 2.
Described fluxing zone 1 is for melten gel.In this embodiment, described fluxing zone 1 is connected with an injection channel 3, and solid gum stock inputs in described fluxing zone 1 by described injection channel 3.Described fluxing zone 1 comprises a Metal-magnetic needle 13, for heating described fluxing zone 1, melts as liquid melten gel to make solid gum stock.In this embodiment, described Metal-magnetic needle 13 is the magnetic induction heater coils being wound around described fluxing zone 1.After passing into power supply, electromagnetic induction produces eddy current in metallic conductor, by electromagnetic induction electrical energy transfer to fluxing zone 1, electric energy is heat energy at fluxing zone 1 inner transformation, enables the sizing material of fluxing zone 1 be rapidly heated to dissolve and become melten gel.
Described fluxing zone 1 comprises carriage release lever 11 and the runner 12 be communicated with described injecting glue section 2 that is arranged on described fluxing zone 1 inside.Described carriage release lever 11 1 aspect is for promoting described melten gel, described melten gel is made to be full of described injecting glue section 2 by described runner 12, described carriage release lever 11 can be used for closed described runner 12 on the other hand, to make described fluxing zone 1 cut off with described injecting glue section 2, and then makes described injecting glue section 2 keep constant voltage.In this embodiment, described carriage release lever 11 is screw rod.
Described injecting glue section 2 comprises injecting glue plunger 21 and ejecting gun 22.Promote described injecting glue plunger 21 described melten gel to be squeezed in described ejecting gun 22.The mode adopting injecting glue plunger 21 to carry out the defeated glue of injecting glue can improve service life greatly, has saved operating cost.Further, described glue injection equipment also comprises a cylinder 4, and described cylinder 4 is connected with described injecting glue section 1, moves for promoting described injecting glue plunger 21.
Described ejecting gun 22 is for injecting destination apparatus (accompanying drawing does not indicate) by described melten gel.See Fig. 3, described ejecting gun 22 comprises spring 23, injection road 24 and and contacts and the needle-valve 25 coaxial with described injection road 24 with described spring 23.Described needle-valve 25 can overcome the pretightning force of described spring 23 and allow melten gel to enter described injection road 24.The pretightning force of described spring 23 can not be too large, can not be too little, as too large, needle-valve 25 can be caused not open, can not realize injecting glue; As too little, just do not reach the object of Self Adaptive Control.Melten gel enters ejecting gun 22 by the effect of injecting glue plunger 21, and the pressure in ejecting gun 22 is raised, and needle-valve 25 overcomes the resistance of spring 23, draws back, and needle-valve 25 is disengaged with injection road 24, and melten gel injects destination apparatus through spraying road 24.After injecting glue completes, needle-valve 25 contacts with injection road 24 under the effect of the pressure, forms stop valve.
Further, described glue injection equipment also comprises a grating scale 5 be connected with described injecting glue plunger 21, and described grating scale 5 for measuring injecting glue plunger 21 displacement in real time, and then controls injecting glue amount.Adopt grating scale 5 closed-loop control cylinder 4 to run, can Obtaining Accurate each injecting glue time, the distance of injecting glue plunger 21 movement, can control injecting glue amount thus reliably.When promoting injecting glue plunger 21 and travelling forward, grating scale 5 measures injecting glue plunger 21 move distance in real time, be converted into injecting glue quality, when reaching required injecting glue amount, grating scale 5 feeds back signal to cylinder 4, cylinder 4 stops travelling forward, and resets, thus accurate quantification injecting glue amount, raising injecting glue quality.
Further, injecting glue section 2 also comprises a Metal-magnetic needle 26, described Metal-magnetic needle 26 for heating described injecting glue section 2, to be incubated described melten gel.By the temperature adopting Metal-magnetic needle 26 can effectively control and keep melten gel in injecting glue section 2, when injection moulding of melt is arrived in product, avoid damaging components and parts.In this embodiment, described Metal-magnetic needle 26 is the magnetic induction heater coils being wrapped in described injecting glue section 2 surface.
The running that the present invention is based on the constant voltage glue injection equipment of low-pressure injection molding is as follows:
After passing into power supply, Metal-magnetic needle 13 produces eddy current in metallic conductor, by electromagnetic induction electrical energy transfer to fluxing zone 1; Electric energy is heat energy at fluxing zone 1 inner transformation, the sizing material in fluxing zone 1 is rapidly heated and dissolves formation melten gel; At the booster action of carriage release lever 11, melten gel enters runner 12, and makes injecting glue section 2 fill melten gel completely by described runner 12, and when injecting glue section 2 fills melten gel completely, described carriage release lever 11 withstands runner 12, namely closes described runner 12, makes injecting glue section 2 keep constant voltage; Continue to be incubated melten gel by the Metal-magnetic needle 26 being arranged on described injecting glue section 2; By cylinder 4, promote injecting glue plunger 21, melten gel is advanced ejecting gun 22; In the process, the grating scale 5 be connected with described injecting glue plunger 21 measures the distance (quality of each injecting glue that converted by injecting glue plunger 21 displacement) of injecting glue plunger 21 movement in real time; Melten gel promotes due to pressure effect, overcomes the pretightning force of spring 23, and melten gel is directly by spraying in road 24 target approach product, and carry out pressurize certain hour after having sprayed, spring 23 resets, and needle-valve 25 is blocked and sprayed road 24, then circulates and sprays next time.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (8)
1. the constant voltage glue injection equipment based on low-pressure injection molding, comprise fluxing zone and injecting glue section, it is characterized in that, described fluxing zone comprises carriage release lever and the runner be communicated with described injecting glue section that is arranged on described fluxing zone inside, described carriage release lever can be used for closed described runner, to make described fluxing zone and described injecting glue section cut off, and then described injecting glue section is made to keep constant voltage.
2. the constant voltage glue injection equipment based on low-pressure injection molding according to claim 1, is characterized in that, includes a Metal-magnetic needle at described fluxing zone and injecting glue section, and described Metal-magnetic needle is for heating described fluxing zone and injecting glue section.
3. the constant voltage glue injection equipment based on low-pressure injection molding according to claim 2, is characterized in that, described Metal-magnetic needle is the magnetic induction coil being wound around described fluxing zone and described injecting glue section.
4. the constant voltage glue injection equipment based on low-pressure injection molding according to claim 1, it is characterized in that, described injecting glue section comprises injecting glue plunger and ejecting gun, promotes described injecting glue plunger and described melten gel can be squeezed into described ejecting gun, and described ejecting gun is used for described melten gel to inject destination apparatus.
5. the constant voltage glue injection equipment based on low-pressure injection molding according to claim 4, it is characterized in that, described glue injection equipment also comprises a cylinder, and described cylinder is connected with described injecting glue section, moves for promoting described injecting glue plunger.
6. the constant voltage glue injection equipment based on low-pressure injection molding according to claim 5, it is characterized in that, described glue injection equipment also comprises a grating scale be connected with described injecting glue plunger, and described grating scale is used for measuring injecting glue plunger displacement in real time, and then controls injecting glue amount.
7. the constant voltage glue injection equipment based on low-pressure injection molding according to claim 4, it is characterized in that, described ejecting gun comprises a spring, and sprays road and one and described spring contact and the needle-valve coaxial with described injection road, and described needle-valve can overcome the pretightning force of described spring and allow melten gel to enter described injection road.
8. the constant voltage glue injection equipment based on low-pressure injection molding according to claim 1, is characterized in that, described carriage release lever is screw rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410673515.8A CN104354260A (en) | 2014-11-21 | 2014-11-21 | Constant-pressure glue injecting equipment based on low-pressure injection molding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410673515.8A CN104354260A (en) | 2014-11-21 | 2014-11-21 | Constant-pressure glue injecting equipment based on low-pressure injection molding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104354260A true CN104354260A (en) | 2015-02-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410673515.8A Pending CN104354260A (en) | 2014-11-21 | 2014-11-21 | Constant-pressure glue injecting equipment based on low-pressure injection molding |
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| CN (1) | CN104354260A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104859118A (en) * | 2015-03-26 | 2015-08-26 | 常熟康尼格科技有限公司 | Pressure adjusting mechanism and pressure adjusting method of low-pressure injection molding packaging equipment |
| CN107538689A (en) * | 2017-10-12 | 2018-01-05 | 东莞市联洲知识产权运营管理有限公司 | A kind of closable injection mold of branch flow passage |
-
2014
- 2014-11-21 CN CN201410673515.8A patent/CN104354260A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104859118A (en) * | 2015-03-26 | 2015-08-26 | 常熟康尼格科技有限公司 | Pressure adjusting mechanism and pressure adjusting method of low-pressure injection molding packaging equipment |
| CN104859118B (en) * | 2015-03-26 | 2017-07-11 | 苏州康尼格电子科技股份有限公司 | A kind of pressure regulating device and pressure regulation method of low-pressure injection molding sealed in unit |
| CN107538689A (en) * | 2017-10-12 | 2018-01-05 | 东莞市联洲知识产权运营管理有限公司 | A kind of closable injection mold of branch flow passage |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| CB02 | Change of applicant information |
Address after: 215500, Guanghua Road, Xinzhuang Town, Jiangsu, Changshou City, No. 22 Applicant after: SUZHOU KONIG ELECTRONIC TECHNOLOGY CO., LTD. Address before: 215500, Guanghua Road, Xinzhuang Town, Jiangsu, Changshou City, No. 22 Applicant before: Changshu Konig Technologies Co., Ltd. |
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| COR | Change of bibliographic data | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150218 |