CN102717496A - Miniature precision injection machine - Google Patents
Miniature precision injection machine Download PDFInfo
- Publication number
- CN102717496A CN102717496A CN2011103606185A CN201110360618A CN102717496A CN 102717496 A CN102717496 A CN 102717496A CN 2011103606185 A CN2011103606185 A CN 2011103606185A CN 201110360618 A CN201110360618 A CN 201110360618A CN 102717496 A CN102717496 A CN 102717496A
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- Prior art keywords
- stirring
- injection
- rubber
- hole
- injection machine
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- 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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- 238000002347 injection Methods 0.000 title claims abstract description 77
- 239000007924 injection Substances 0.000 title claims abstract description 77
- 238000003756 stirring Methods 0.000 claims abstract description 33
- 238000010438 heat treatment Methods 0.000 claims abstract description 25
- 239000004033 plastic Substances 0.000 claims description 35
- 229920003023 plastic Polymers 0.000 claims description 35
- 239000003292 glue Substances 0.000 claims description 28
- 239000000945 filler Substances 0.000 claims description 7
- 125000003003 spiro group Chemical group 0.000 claims description 6
- 230000001360 synchronised effect Effects 0.000 claims description 6
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 230000008018 melting Effects 0.000 abstract description 9
- 238000002844 melting Methods 0.000 abstract description 9
- 238000012423 maintenance Methods 0.000 abstract description 2
- 238000010008 shearing Methods 0.000 abstract 5
- 238000003723 Smelting Methods 0.000 abstract 1
- 230000004308 accommodation Effects 0.000 abstract 1
- 230000033001 locomotion Effects 0.000 abstract 1
- 238000001746 injection moulding Methods 0.000 description 11
- 239000004568 cement Substances 0.000 description 5
- 239000007788 liquid Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000008358 core component Substances 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000001802 infusion Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
Images
Landscapes
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses a miniature precision injection machine. The miniature precision injection machine comprises a mold opening/closing mechanism, a melting rubber-injection mechanism and a frame. A stirring and shearing screw of the melting rubber-injection mechanism is arranged in a heating component. The stirring and shearing screw and an inner wall of the heating component form a rubber-smelting chamber. A hole with an open end is arranged in the center of the stirring and shearing screw. An injection rod extends into the hole from the open end so that an accommodation chamber is formed. The other end of the stirring and shearing screw is provided with a rubber-feeding hole. A rubber-discharge hole is arranged at a stirring and shearing screw part located at a rubber-feeding hole side far away from the open end. The rubber-feeding hole and the rubber-discharge hole rotatingly cooperate with a one-way valve core arranged at a heating component end close to the mold opening/closing mechanism so that alternative working of the rubber-feeding hole and the rubber-discharge hole is realized. The miniature precision injection machine has the advantages that the whole machine body is short; a floor space is small; a structure is compact; maintenance is easy; automatic rubber-feeding and discharge are realized; the motions of all parts can be controlled fully automatically and accurately by PLC; and an injection rod having a large ratio of the length to the cross section diameter is adopted so that the adopted injection rod has a longer stroke and the precision of an injection amount can be improved to 0.01mg.
Description
Technical field
The present invention relates to a kind of clasp mould mechanism, molten gum-filling mechanism and frame of comprising, said clasp mould mechanism and molten gum-filling mechanism are arranged on miniature precise injection machine on the frame.
Background technology
Traditional injection machine generally comprises clasp mould mechanism, injection moulding of melt mechanism and frame; Clasp mould mechanism and injection moulding of melt mechanism in-line are arranged on the frame, and said injection moulding of melt mechanism all comprises the rubber melting cylinder of a strip, as the rubber melting cylinder energy-saving structure of the disclosed a kind of injection machine of Chinese patent document CN201272008; This rubber melting cylinder comprises screw rod, rubber melting cylinder and the injection assembly of melten gel system, and a plurality of heating circles of arranging on the rubber melting cylinder carry out the segmentation heating to rubber melting cylinder; Therefore, the injection moulding of melt mechanism of this injection machine is generally all longer, makes that the entire length of whole injection machine is also very long; Floor space is bigger, under the situation of present an inch of land is an inch of gold, takies bigger area; Certainly will to increase user's land used cost, thereby improve the manufacturing cost of final products.
In order to address the above problem; Someone has proposed the melten gel part of injection moulding of melt mechanism is divided into two independent parts with injection portion, can shorten the length of injection moulding of melt mechanism thereby be arranged above and below, like the disclosed a kind of all-electric twin-screw injection machine of Chinese patent document CN201720992U; It is divided into two parts with melten gel device and injection device exactly; And with parallel arrangement about melten gel device and the injection device, its melten gel device is positioned on the injection device, and the plastic cement that from the melten gel device, is melted flows in the injection device through ball valve; Then, through the injection plunger injection.This structure can shorten the length of injection moulding of melt mechanism widely, reduces the floor space of injection machine; Yet there is complex structure in this structure with parallel arrangement about melten gel device and the injection device, and space hold is big; And it is after advancing the glue completion, before injecting glue, need close ball valve, in case excessive owing to pressure when injecting glue at every turn; And making molten good glue return the melten gel device again, this operation very precisely or careful is closed a little in advance or is postponed and close the quality that all can influence product.Tool is local to be said, closes the use of closing in advance and advances the glue quantity not sufficient, causes the product can not be by complete forming; Postponement is closed, and can cause molten good glue to return the melten gel device, returns out from charging aperture then, and accidentally, this high temperature feed liquid of returning out can be scalded the people.
Summary of the invention
The present invention seeks to overcome above-mentioned defective, a kind of length that can not only shorten injection machine be provided, and its take up room littler, the miniature precise injection machine that structure is compact more.
Another object of the present invention is to realize preparing to close automatically glue-feeder, guarantees that thermosol can not turn back to the melten gel part, can overcome the hidden danger that the high temperature feed liquid is scalded the people.
Technical scheme of the present invention is: design a kind of miniature precise injection machine; Comprise clasp mould mechanism, molten gum-filling mechanism and frame; Said clasp mould mechanism and molten gum-filling mechanism are arranged on the frame; Said molten gum-filling mechanism comprises feed hopper, heating element heater, stirring and shear screw, spiro driving device, injection rod, injection rod drive unit and nonreturn valve core, and said stirring and shear screw are located within the said heating element heater, and forms the melten gel chamber with the inwall of said heating element heater; Said feed hopper is located on the heating element heater; And communicate with said melten gel chamber, being provided with the hole of an end opening in said stirring and shear screw central authorities, said injection rod extend in the said hole from said opening and constitutes chamber volume; The other end at stirring and shear screw is provided with glue feeding opening; Glue feeding opening away from the stirring of a side of opening and shear screw on be provided with the plastic hole, said glue feeding opening, plastic hole and be arranged on movable cooperation of nonreturn valve core near an end of clasp mould mechanism of heating element heater, a job is selected in formation glue feeding opening and plastic hole.
As to improvement of the present invention; Said nonreturn valve core comprises seal section, plastic emitting section and injection section from the inside to surface successively; The injection hole is located on the injection section; And communicate with the content of plastic emitting section, the interior empty internal diameter of said seal section is less than the interior empty internal diameter of plastic emitting section, and equates with the external diameter of the termination of said stirring and shear screw.
As to improvement of the present invention, the and then seal section of said nonreturn valve core also is provided with the empty avoiding section, and said empty avoiding section central authorities equal the termination external diameter for the outer end, inner bellmouth greater than the termination external diameter.
As to improvement of the present invention, said spiro driving device comprises first servomotor, and said first servomotor rotates through said stirring of gear set drive and shear screw.
As to improvement of the present invention, said injection rod drive unit comprises second servomotor, and said second servomotor drives the rotation of first ball-screw through first synchronous belt and first synchronizing wheel, advances or retreats thereby drive injection rod.
As to improvement of the present invention, said clasp mould mechanism comprises the 3rd servomotor, and said the 3rd servomotor drives folding mould portable plate through second synchronous belt, second synchronizing wheel and second ball-screw, moves with respect to the front mould fixed head.
As to improvement of the present invention; Said folding mould portable plate and/or front mould fixed head are provided with quick pan filler structure; Said quick pan filler structure comprises front card and back card/back board; Said front card and back card/back board are separated by a distance through the connecting plate formation slot that is connected as a single entity, and on said connecting plate, are provided with screw rod.
As to improvement of the present invention, around said frame, be provided with cabinet.
As to improvement of the present invention, said glue feeding opening is a circle loose structure.
As to improvement of the present invention, said plastic hole is a circle loose structure.
The present invention not only makes traditional rubber melting cylinder shorten nearly 40% length owing to adopted twin-screw back structure again, and this structure is for parallel arrangement about the twin-screw, and its structure is compact more, easily maintenance; Adopt unique nonreturn valve core design, under the situation that does not increase any additional mechanism, can realize advancing automatically glue and plastic emitting; All driving mechanism adopts servomotor control; Can realize action with the full-automatic precisely control of PLC various piece; Especially injection rod adopts the bigger injection rod in length and cross section; Make the stroke of injection rod longer, long period control injection volume is arranged, can the injection volume precision be brought up to 0.01mg.Can be widely used in injection moulding to the used small-sized parts of medical industry, IT industry.
Description of drawings
Fig. 1 is the perspective view of an embodiment of the present invention.
Fig. 2 is the perspective view after Fig. 1 adds upper case.
Fig. 3 is the perspective view of the molten gum-filling mechanism among Fig. 1.
Fig. 4 is the perspective view of the core component of molten gum-filling mechanism among Fig. 3.
Fig. 5 is stirring and the perspective view of shear screw, first ball-screw and injection rod among Fig. 4.
Fig. 6 is the sketch map of a kind of state of cross-section structure of stirring and shear screw and nonreturn valve core among Fig. 4.
Fig. 7 is the sketch map of the another kind of state of cross-section structure of stirring and shear screw and nonreturn valve core among Fig. 4.
Fig. 8 is the planar structure sketch map of unit spool among Fig. 6.
Fig. 9 is the perspective view of the quick pan filler structure among Fig. 1.
The specific embodiment
See also Fig. 1 to Fig. 9; What Fig. 1 to Fig. 9 disclosed is a kind of miniature precise injection machine; Comprise clasp mould mechanism 1, molten gum-filling mechanism 2 and frame 3; Said clasp mould mechanism 1 is arranged on the frame 3 with molten gum-filling mechanism 2, and said molten gum-filling mechanism 2 comprises feed hopper 21, heating element heater 22, stirring and shear screw 23, spiro driving device 24, injection rod 25, injection rod drive unit 26 and nonreturn valve core 27, and said stirring and shear screw 23 are located within the said heating element heater 22; And form the melten gel chamber with the inwall of said heating element heater 22; Said heating element heater 22 is located on the seat board 221, and said feed hopper 21 is located on the heating element heater 22 through seat board 221, and communicates with said melten gel chamber; Be provided with the hole of an end opening in said stirring and shear screw 23 central authorities; Said injection rod 25 extend in the said hole from said opening and constitutes chamber volume 233, stirring and the other end of shear screw 23 is provided with glue feeding opening 231, glue feeding opening 231 away from the stirring of a side of opening and shear screw 23 on be provided with plastic hole 232; Said glue feeding opening 231, plastic hole 232 and be arranged on 27 movable cooperations of nonreturn valve core near an end of clasp mould mechanism 1 of heating element heater 22 constitute glue feeding opening 231 and plastic hole 232 and select a job; The side near injection rod drive unit 26 at said seat board 221 is provided with back-moving spring 222, when being used for melten gel glue feeding opening 231 is sealed; Obviously, said back-moving spring 222 also can be designed to not withstand on the structure on the heating element heater 22 through seat board 221, promptly can be designed to said back-moving spring 222 and directly withstand on the heating element heater 22.
Among the present invention, said spiro driving device 24 comprises first servomotor 241, and said first servomotor 241 drives said stirring and shear screw 23 rotations through gear train 242.Said injection rod drive unit 26 comprises second servomotor 261; Said second servomotor 261 drives the sleeves rotation that is installed in the female seat 265 of ball-screw through first synchronous belt 262 and first synchronizing wheel 263, advances or retreats thereby let first ball-screw 264 drive injection rods 25.Said clasp mould mechanism 1 comprises the 3rd servomotor 11, and said the 3rd servomotor 11 drives folding mould portable plates 15 through second synchronous belt 12, second synchronizing wheel 13 and second ball-screw 14, moves with respect to front mould fixed head 16 along support 18.Be provided with quick pan filler structure 17 at said folding mould portable plate 15 and/or front mould fixed head 16; Said quick pan filler structure 17 comprises front card 171 and back card/back board 172; Said front card 171 constitutes slot 173 with back card/back board 172 separated by a distance being connected as a single entity through connecting plate 174; On said connecting plate 174, be provided with screw rod 175, during use, front card 171 inserted in the respective grooves of die; Back card/back board 172 inserts in the respective grooves of folding mould portable plate 15 or front mould fixed head 16; Tie down screw 175 just can be fixed on die on folding mould portable plate 15 or the front mould fixed head 16, and this mode can be installed die from the side, than the convenient many (see figure 9)s of installation die from the front in the past.Around said frame 3, be provided with cabinet 31.
See also Fig. 6 to Fig. 8; Said nonreturn valve core 27 comprises seal section 271, plastic emitting section 272 and injection section 273 from the inside to surface successively; Injection hole 274 is located on the injection section 273; And communicate with the content of plastic emitting section 272, the interior empty internal diameter of said seal section 271 is less than the interior empty internal diameter of plastic emitting section 272, and equates with the external diameter of the termination 234 of said stirring and shear screw 23; And then the seal section 271 of said nonreturn valve core 27 also is provided with empty avoiding section 275, and said empty avoiding section 275 central authorities equal termination 234 external diameters for the outer end, inner bellmouth 276 greater than termination 234 external diameters.At melten gel with to the 233 encapsulating stages of chamber volume, as shown in Figure 6, the indoor plastic cement amount that is melted of melten gel reach a certain amount of after; Owing to stir with shear screw 23 ceaselessly that these plastic cement that are melted are movingly to nonreturn valve core 27 1 thrusters, nonreturn valve core 27 is produced thrusts, owing to nonreturn valve core 27 is to withstand on the sprue bushing of mould; Inactive, at this moment, under the effect of the reaction force of above-mentioned thrust; Draw back when seat board 221 is arranged (if, seat board 221 is also retreated with heading) together with heating element heater 22 and stirring and shear screw 23 with the supporting spacing ring 28 of nonreturn valve core 27, backway is during above preset distance; Glue feeding opening 231 spills in seal section 271, is among the empty avoiding section 275, certainly; Do not have empty avoiding section 275 also to be fine, it is promptly passable only to need glue feeding opening 231 to spill in seal section 271; (the removable preset distance of the nonreturn valve core 27 in the present embodiment is designed to 2mm, by spacing with the supporting spacing ring 28 of nonreturn valve core 27), and plastic hole 232 is by seal section 271 sealings; At this moment, the plastic cement that is melted and shears can be poured in the chamber volume 233 from glue feeding opening 231 (being a plurality of glue feeding openings 231 of a circle the present embodiment), and the liquid plastic cement of entering can promote injection rod 25 gradually backward; Until reaching preset distance (being provided with in advance by PLC should distance, sees Fig. 6), at this moment; Stop melten gel, stirring and shear screw 23 stop operating, and above-mentioned thrust is kept to zero; Under the effect of back-moving spring 222; Spacing ring 28 resets forward together with heating element heater 22 and stirring and shear screw 23, and the plastic hole 232 of nonreturn valve core 27 is spilt in plastic emitting section 272, and glue feeding opening 231 is sealed by seal section 271; Under the promotion of injection rod 25; The plastics glue that is melted is 232 (being a plurality of plastic holes 232 of a circle the present embodiment) outflow from the plastic hole, in the injection hole 274 and sprue bushing inflow die through plastic emitting section 272, until accomplishing injection moulding; After injection moulding is accomplished, begin melten gel infusion cycles for the second time again.
The present invention is the control system that constitutes of nuclear core by PLC, controls each step action of the present invention comprehensively, and when heating-up temperature, injection stroke and injection, and with die sinking time of clasp mould mechanism.In PLC, prestore program, after start, only need according to different plastics to the injection moulding of different plastic raw materials, selected corresponding injection moulding program, the present invention can inject qualified product fully automatically.
Claims (10)
1. miniature precise injection machine; Comprise clasp mould mechanism (1), molten gum-filling mechanism (2) and frame (3); Said clasp mould mechanism (1) and molten gum-filling mechanism (2) are arranged on the frame (3); Said molten gum-filling mechanism (2) comprises feed hopper (21), heating element heater (22), stirring and shear screw (23), spiro driving device (24), injection rod (25), injection rod drive unit (26) and nonreturn valve core (27); It is characterized in that; Said stirring and shear screw (23) are located within the said heating element heater (22); And forming the melten gel chamber with the inwall of said heating element heater (22), said feed hopper (21) is located on the heating element heater (22), and communicates with said melten gel chamber; Be provided with the hole of an end opening in said stirring and shear screw (23) central authorities; Said injection rod (25) extend into from said opening and constitutes chamber volume (233) in the said hole, stirring and the other end of shear screw (23) is provided with glue feeding opening (231), glue feeding opening (231) away from the stirring of a side of opening and shear screw (23) on be provided with plastic hole (232); Said glue feeding opening (231), plastic hole (232) and be arranged on movable cooperation of the nonreturn valve core (27) near an end of clasp mould mechanism (1) of heating element heater (22), a job is selected in formation glue feeding opening (231) and plastic hole (232).
2. miniature precise injection machine according to claim 1; It is characterized in that; Said nonreturn valve core (27) comprises seal section (271), plastic emitting section (272) and injection section (273) from the inside to surface successively, and injection hole (274) are located on the injection section (273), and communicates with the content of plastic emitting section (272); The interior empty internal diameter of said seal section (271) is less than the interior empty internal diameter of plastic emitting section (272), and equates with the external diameter of the termination (234) of said stirring and shear screw (23).
3. miniature precise injection machine according to claim 1 and 2; It is characterized in that; And then the seal section (271) of said nonreturn valve core (27) also is provided with empty avoiding section (275); Said empty avoiding section (275) central authorities equal termination (234) external diameter for the outer end, inner bellmouth (276) greater than termination (234) external diameter.
4. miniature precise injection machine according to claim 3; It is characterized in that; Said spiro driving device (24) comprises first servomotor (241), and said first servomotor (241) drives said stirring and shear screw (23) rotation through gear train (242).
5. miniature precise injection machine according to claim 4; It is characterized in that; Said injection rod drive unit (26) comprises second servomotor (261); Said second servomotor (261) drives first ball-screw (264) rotation through first synchronous belt (262) and first synchronizing wheel (263), thereby driving injection rod (25) advances or retreats.
6. miniature precise injection machine according to claim 5; It is characterized in that; Said clasp mould mechanism (1) comprises the 3rd servomotor (11); Said the 3rd servomotor (11) drives folding mould portable plate (15) through second synchronous belt (12), second synchronizing wheel (13) and second ball-screw (14), moves with respect to front mould fixed head (16).
7. miniature precise injection machine according to claim 6; It is characterized in that; Said folding mould portable plate (15) and/or front mould fixed head (16) are provided with quick pan filler structure (17); Said quick pan filler structure (17) comprises front card (171) and back card/back board (172), and separated by a distance being connected as a single entity through connecting plate (174) of said front card (171) and back card/back board (172) constitutes slot (173), on said connecting plate (174), is provided with screw rod (175).
8. miniature precise injection machine according to claim 7 is characterized in that, around said frame (3), is provided with cabinet (31).
9. miniature precise injection machine according to claim 8 is characterized in that, said glue feeding opening (231) is a circle loose structure.
10. miniature precise injection machine according to claim 9 is characterized in that, said plastic hole (232) are a circle loose structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110360618.5A CN102717496B (en) | 2011-11-15 | 2011-11-15 | Miniature precision injection machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110360618.5A CN102717496B (en) | 2011-11-15 | 2011-11-15 | Miniature precision injection machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102717496A true CN102717496A (en) | 2012-10-10 |
| CN102717496B CN102717496B (en) | 2014-09-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110360618.5A Expired - Fee Related CN102717496B (en) | 2011-11-15 | 2011-11-15 | Miniature precision injection machine |
Country Status (1)
| Country | Link |
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| CN (1) | CN102717496B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103692624A (en) * | 2013-12-30 | 2014-04-02 | 广东联塑机器制造有限公司 | Injection moulding machine |
| CN103862643A (en) * | 2014-03-18 | 2014-06-18 | 深圳市铠钜电子科技有限公司 | Micro injection molding machine |
| CN105459323A (en) * | 2015-12-08 | 2016-04-06 | 苏州源硕精密模具有限公司 | Injection molding machine |
| WO2016112573A1 (en) * | 2015-01-16 | 2016-07-21 | 苏州宝氏自动化科技有限公司 | Novel screw type low-pressure injection molding machine and injection molding method thereof |
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| CN201720992U (en) * | 2010-07-13 | 2011-01-26 | 深圳市成中胜贸易有限公司 | Fully electrical double-screw injection molding machine |
| CN201989283U (en) * | 2010-12-24 | 2011-09-28 | 合肥普特化轻材料有限公司 | Power device of injection molding machine |
| CN202318827U (en) * | 2011-11-15 | 2012-07-11 | 谢远鹏 | Micro precise injection molding machine |
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2011
- 2011-11-15 CN CN201110360618.5A patent/CN102717496B/en not_active Expired - Fee Related
Patent Citations (6)
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| CN201092107Y (en) * | 2007-08-06 | 2008-07-30 | 谢远鹏 | Minitype experiment injection molding machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103692624A (en) * | 2013-12-30 | 2014-04-02 | 广东联塑机器制造有限公司 | Injection moulding machine |
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| CN103862643A (en) * | 2014-03-18 | 2014-06-18 | 深圳市铠钜电子科技有限公司 | Micro injection molding machine |
| WO2016112573A1 (en) * | 2015-01-16 | 2016-07-21 | 苏州宝氏自动化科技有限公司 | Novel screw type low-pressure injection molding machine and injection molding method thereof |
| CN105459323A (en) * | 2015-12-08 | 2016-04-06 | 苏州源硕精密模具有限公司 | Injection molding machine |
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| CN102717496B (en) | 2014-09-10 |
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Owner name: SHANGHAI RUNPIN INDUSTRY + TRADE CO., LTD. Free format text: FORMER OWNER: XIE YUANPENG Effective date: 20150113 |
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Effective date of registration: 20150113 Address after: 201203 Shanghai Zhangjiang hi tech park fanchun Road No. 400 Building 1, 3 layers of 301-449 Patentee after: SHANGHAI RUNPIN INDUSTRY AND TRADE Co.,Ltd. Address before: 518000, Shenzhen, Guangdong province Longgang long southeast channel 133 No. Patentee before: Xie Yuanpeng |
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Granted publication date: 20140910 |