CN102672918B - Injection molding mechanism for high-performance single-cylinder injection molding machine - Google Patents
Injection molding mechanism for high-performance single-cylinder injection molding machine Download PDFInfo
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- CN102672918B CN102672918B CN201210142692.4A CN201210142692A CN102672918B CN 102672918 B CN102672918 B CN 102672918B CN 201210142692 A CN201210142692 A CN 201210142692A CN 102672918 B CN102672918 B CN 102672918B
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Abstract
The invention relates to an injection molding mechanism for an injection molding machine, in particular to an injection molding mechanism for a high-performance single-cylinder injection molding machine. The mechanism comprises a base, a screw arranged on the base and an injection molding oil cylinder device arranged on the rear side of the screw, wherein the rear end of the screw is fixedly connected with a coupling which is driven to rotate by a cycloid oil motor; and the injection molding oil cylinder device drives the cycloid oil motor and the coupling to do high-speed horizontal linear motion through differential injection. The cycloid oil motor is directly connected with the screw of the injection molding machine through the coupling, so that a few transmission parts are used, the transfer distance of rotating power is short, and the mechanism has a simple structure and is high in injection accuracy; and a piston rod of the oil cylinder device does not rotate during injection, so that a rotating seal is not needed, and sealing performance can be improved.
Description
Technical field
The present invention relates to the injecting mechanism of injection moulding machine, specifically the injecting mechanism of single cylinder injection moulding machine.
Background technology
The motor of existing single cylinder injection moulding machine injecting mechanism is generally the rear end being contained in injection moulding cylinder apparatus by motor base.When motor operations, rotary power must could be passed to screw rod through injection moulding oil cylinder inner a series of transmission device, therefore, the structure of the inside transmission device of this injection machine is more complicated and preformed rotary power transmission distance is longer, makes the precision of shot be difficult to control.In addition, the piston rod of the cylinder apparatus of most of single cylinder injection moulding machine is while drive screw rod does reciprocal horizontal rectilinear motion, also rotate, cause must adopting rotatory sealing between injection moulding cylinder block and piston rod and between cylinder cap and piston rod, the difficulty of processing of this obturator is higher, costly, and it is short for service life to there is obturator, the defects such as inconvenient maintenance for price.
Summary of the invention
For the deficiency of above-mentioned prior art, the technical problem that the present invention solves be to provide that a kind of structure is comparatively simple, injection moulding precision is higher and piston rod carries out differential high speed injection rectilinear motion time the injecting mechanism of high-performance single cylinder injection moulding machine that do not rotate.
The present invention is achieved in that the injecting mechanism of high-performance single cylinder injection moulding machine, the injection moulding cylinder apparatus comprise base, screw rod being on the base set and being arranged on rear side of this screw rod, described spiro rod rear end with drive the shaft coupling rotated affixed by cycloid oil motor, described injection moulding cylinder apparatus band dynamic cycloid oil motor and shaft coupling make horizontal rectilinear motion.
The present invention also has following additional technical feature:
Described spiro rod rear end stretches into the axial one end of shaft coupling and affixed with it, and the output shaft of described cycloid oil motor stretches into the axial other end of shaft coupling and affixed with it.
Described shaft coupling is arranged in an axle sleeve by bearing, and described cycloid oil motor is installed in a motor base, described axle sleeve and motor base affixed, the piston rod of this motor base and described injection moulding cylinder apparatus is affixed.
The closed-in construction of described axle sleeve and the affixed formation rigidity of motor base.
On described base, level is provided with bilinear guide rail mechanism, and described closed-in construction is arranged on this bilinear guide rail mechanism, and makes motion guide by this bilinear guide rail mechanism.
As can be known from the above technical solutions, cycloid oil motor is directly connected with screw in injection molding machine by shaft coupling by the present invention, and it is shorter that the drive disk assembly of use is less, rotary power transmits distance, and not only structure is simpler, injection precision is higher for it; And the piston rod of cylinder apparatus does not rotate when injecting, and need not adopt rotatory sealing, can improve sealing property, thus reducing technological difficulties and manufacturing cost, improving the service life of injection mechanism.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Detailed description of the invention
The present invention is described in detail below in conjunction with Fig. 1:
The injecting mechanism of this single cylinder injection moulding machine comprises base 1, setting screw rod 2 on the base and the injection moulding cylinder apparatus 3 be arranged on rear side of this screw rod 2, cylinder apparatus 3 comprises cylinder body 31, piston rod 32 and seals protecgulum 33 and the bonnet 34 of this cylinder body, and the oil in cylinder body can drive piston rod 32 to do high-speed straight-line motion through differential injection; Described screw rod 2 rear end with drive the shaft coupling 5 of rotation affixed by cycloid oil motor 4.In the present invention, the axial one end of shaft coupling 5 is stretched into and affixed with it in described screw rod 2 rear end, the output shaft of described cycloid oil motor 4 stretches into the axial other end of shaft coupling 5 and affixed with it, and this mode only uses a drive disk assembly, and compared with prior art its structure is simpler; And cycloid oil motor moves to front side by the rear side of existing cylinder apparatus, makes the transmission Distance Shortened of rotary power, improves the injection precision of injection machine.
In the present embodiment, described shaft coupling 5 is arranged in an axle sleeve 51 by bearing 6, described motor 4 is installed in a motor base 41, and described axle sleeve 51 and the high strength closed-in construction of the affixed formation rigidity of motor base 41, make axle sleeve keep relative fixing with the position of motor base; Described motor base 41 is affixed with the piston rod 32 of described injection moulding cylinder apparatus 3.When injecting, utilize the oil in cylinder body to drive piston rod 32 to do high-speed straight-line through differential injection and move, piston rod 32 drives motor base to move, and motor moves along with motor base; Due to motor base and axle sleeve affixed, therefore axle sleeve and shaft coupling move along with motor base, thus make shaft coupling 5 drive screw rod 2 to do rectilinear motion, which achieves injection moulding cylinder apparatus 3 and are with dynamic cycloid oil motor 4 and shaft coupling 5 to make horizontal rectilinear motion.Also realize by other mode in implementation process, be not limited to use shaft coupling.From the above, the piston rod 32 of injecting mechanism cylinder apparatus 3 when injecting must not rotate when doing rectilinear motion, thus need not adopt rotatory sealing, not only cost is low, structure is simple, the life-span is long, easy to maintenance, and substantially increases the sealing property of injection machine.
In order to improve the stationarity of motor base 41, cycloid oil motor 4, axle sleeve 51, shaft coupling 5 movement simultaneously, the closed-in construction of described axle sleeve and the affixed formation rigidity of motor base, makes motor base 41, cycloid oil motor 4, axle sleeve 51, shaft coupling 5 form the entirety of a rigidity.More accurate in order to make the closed-in construction of rigid unitary formula move, the present invention is horizontally disposed with high-accuracy bilinear guide rail mechanism 7 on base 1, closed-in construction is arranged on bilinear guide rail mechanism, is made the motion precision guiding of closed-in construction by bilinear guide rail mechanism 7.Owing to ensure that closed-in construction moves accurately, further increase injection moulding precision of the present invention.
Above-mentioned embodiment is used for illustrative purposes only, and be not limitation of the present invention, the those of ordinary skill of relevant technical field, without departing from the spirit and scope of the present invention, can also make various change and modification, therefore all equivalent technical schemes also should belong to category of the present invention.
Claims (4)
1. the injecting mechanism of high-performance single cylinder injection moulding machine, the injection moulding cylinder apparatus comprise base, screw rod being on the base set and being arranged on rear side of this screw rod, it is characterized in that: described spiro rod rear end with drive the shaft coupling rotated affixed by cycloid oil motor, described injection moulding cylinder apparatus band dynamic cycloid oil motor and shaft coupling make horizontal rectilinear motion; Described shaft coupling is arranged in an axle sleeve by bearing, and described cycloid oil motor is installed in a motor base, described axle sleeve and motor base affixed, the piston rod of this motor base and described injection moulding cylinder apparatus is affixed.
2. the injecting mechanism of high-performance single cylinder injection moulding machine according to claim 1, is characterized in that: described spiro rod rear end stretches into the axial one end of shaft coupling and affixed with it, and the output shaft of described cycloid oil motor stretches into the axial other end of shaft coupling and affixed with it.
3. the injecting mechanism of high-performance single cylinder injection moulding machine according to claim 1 and 2, is characterized in that: the closed-in construction of described axle sleeve and the affixed formation rigidity of motor base.
4. the injecting mechanism of high-performance single cylinder injection moulding machine according to claim 3, it is characterized in that: on described base, level is provided with bilinear guide rail mechanism, described closed-in construction is arranged on this bilinear guide rail mechanism, and makes motion guide by this bilinear guide rail mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210142692.4A CN102672918B (en) | 2012-05-10 | 2012-05-10 | Injection molding mechanism for high-performance single-cylinder injection molding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210142692.4A CN102672918B (en) | 2012-05-10 | 2012-05-10 | Injection molding mechanism for high-performance single-cylinder injection molding machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102672918A CN102672918A (en) | 2012-09-19 |
| CN102672918B true CN102672918B (en) | 2015-01-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210142692.4A Active CN102672918B (en) | 2012-05-10 | 2012-05-10 | Injection molding mechanism for high-performance single-cylinder injection molding machine |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106738723A (en) * | 2016-12-05 | 2017-05-31 | 台州市黄岩力松机械有限公司 | Linear high speed single cylinder injection mechanism |
| CN107053617B (en) * | 2017-03-15 | 2023-03-28 | 刘镇江 | Electric injection device of injection molding machine |
| CN107756746B (en) * | 2017-11-01 | 2023-11-17 | 伯乐智能装备股份有限公司 | Single-cylinder injection mechanism of injection molding machine |
| CN114055738A (en) * | 2021-12-22 | 2022-02-18 | 广东台进智能装备股份有限公司 | Single-cylinder high-speed injection platform of injection molding machine |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2585748Y (en) * | 2002-12-23 | 2003-11-12 | 夏善海 | Piston rotary injection oil cyliner of injection molder |
| WO2004024417A1 (en) * | 2002-09-10 | 2004-03-25 | Sodick Co., Ltd. | Mold-clamping apparatus for injection molding machine |
| CN102126277A (en) * | 2010-01-14 | 2011-07-20 | 海天塑机集团有限公司 | Injection molding mechanism with single cylinder |
| CN102275275A (en) * | 2011-06-12 | 2011-12-14 | 江苏维达机械有限公司 | Single-cylinder injection device |
| CN202592686U (en) * | 2012-05-10 | 2012-12-12 | 柳州高新区开宇塑胶机械有限公司 | Injection molding mechanism of high-performance single-cylinder injection molding machine |
-
2012
- 2012-05-10 CN CN201210142692.4A patent/CN102672918B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004024417A1 (en) * | 2002-09-10 | 2004-03-25 | Sodick Co., Ltd. | Mold-clamping apparatus for injection molding machine |
| CN2585748Y (en) * | 2002-12-23 | 2003-11-12 | 夏善海 | Piston rotary injection oil cyliner of injection molder |
| CN102126277A (en) * | 2010-01-14 | 2011-07-20 | 海天塑机集团有限公司 | Injection molding mechanism with single cylinder |
| CN102275275A (en) * | 2011-06-12 | 2011-12-14 | 江苏维达机械有限公司 | Single-cylinder injection device |
| CN202592686U (en) * | 2012-05-10 | 2012-12-12 | 柳州高新区开宇塑胶机械有限公司 | Injection molding mechanism of high-performance single-cylinder injection molding machine |
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| CN102672918A (en) | 2012-09-19 |
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