CN109382985A - A kind of injector clamping - Google Patents
A kind of injector clamping Download PDFInfo
- Publication number
- CN109382985A CN109382985A CN201811363776.4A CN201811363776A CN109382985A CN 109382985 A CN109382985 A CN 109382985A CN 201811363776 A CN201811363776 A CN 201811363776A CN 109382985 A CN109382985 A CN 109382985A
- Authority
- CN
- China
- Prior art keywords
- template
- cambered surface
- front template
- injector
- annular
- 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.)
- Granted
Links
- 238000002347 injection Methods 0.000 claims abstract description 11
- 239000007924 injection Substances 0.000 claims abstract description 11
- 238000010276 construction Methods 0.000 claims abstract description 10
- 238000009434 installation Methods 0.000 claims description 3
- 230000009471 action Effects 0.000 claims description 2
- 239000012530 fluid Substances 0.000 claims 1
- 238000000465 moulding Methods 0.000 abstract description 9
- 238000004458 analytical method Methods 0.000 abstract description 5
- 238000009415 formwork Methods 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 7
- 230000007246 mechanism Effects 0.000 description 6
- 238000001746 injection moulding Methods 0.000 description 5
- 210000003205 muscle Anatomy 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 208000020442 loss of weight Diseases 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- 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
- B29C45/64—Mould opening, closing or clamping devices
Abstract
The present invention relates to a kind of injector clampings; the stress condition of front template and moving template analysis when molding work according to injector; by being optimized to front template and moving template overall structure; by two templates by mold clamping force by new type formwork thaumatropy, the purpose for increasing formwork rigidity, improving closing precision is realized.The front template and moving template include clamp force load plate, annular hollow arc and mold mounting plate；The annular hollow cambered surface supports between clamp force load plate and mold mounting plate, and front template structure hollow out alleviates template quality while guaranteeing formwork rigidity.A kind of injector clamping of the present invention has the advantage that the closing hollow structure rigidity of 1, front template and moving template is high, and stock utilization is high, and manufacturing cost is low；2, front template and moving template pass through the counterforce counteraction that cambered surface support construction gives the clamp force being subject to and mold, and then reduce mold mounting plate stress deformation, improve injection precision.
Description
Technical field
The present invention relates to injection molding machine fields, are a kind of one kind by front template and moving template force analysis optimization design
High resiliency clamping, mold stress deformation and raising product are molded precision when for improving molding.
Background technique
The design of the structure of injector clamping front template and moving template directly affects injection shaped article quality and system
Cause this.Formwork structure form determines template and the mold that is installed on it stress and deformation in molding, it is ensured that mold
Deforming in molding small is the basic guarantee for realizing high rigidity and high-precision injection molding.
Die cylinder is moved forward by toggle mechanism urges moving template in clamping, locks mould using mechanism power amplification characteristic
Tool；After the completion of injection, oil cylinder drives moving template to retreat by toggle mechanism, completes die sinking movement.Conventional injection machine clamping
Front template and mould structure mostly with integral type rectangular plate-like structure, in the locking of injector clamping, front template template
Pulling force of the side by corner location pull rod, mold mounting side is by the pressure from mold.Pressure of the moving template side by mold
Power, thrust of the other side by elbow-bar mechanism, the mold forces of two templates concentrate on the middle part of template, and the power of the other side is distributed in mould
The top and the bottom of plate, so the deformation of installation mold, clamp force is uneven, and template surrounding clamp force is big, and center stress is small.
Clamping need to provide bigger clamp force and just be able to satisfy mold-locked requirement, and pressure unevenness easily causes exhaust not on mold
It is good, to influence injection-molded item quality, also it is unfavorable for protecting mold in addition, long-term clamp force is unevenly distributed.
Injection Industry releases a kind of front template of the new model of changeable mold stress with support muscle in recent years, changes
Deformation under the stress and mode locking situation of front template, but in mode locking stress, power is concentrated mainly on support muscle, injector work
Frequency is high, its fatigue strength can decline over time, change support muscle structure can enhance to a certain extent template service life and
Rigidity.
Summary of the invention
The present invention is directed to improve the force-bearing situation of Clamping Device of Injection Moulding Machine template, mold stress and deformation are equal when improving molding
Even property problem proposes a kind of new structural injector mould-matching structure form.By two template of sunykatuib analysis in mode locking by
Power situation and then optimizing structure design, realizing improves mold stress deformation, and the stress occurred when work is avoided to concentrate, and extends injection
Machine service life purpose.The present invention proposes novel front template and mould structure form, has uniformly used one in two stencil designs
The structure of kind annular hollow cambered surface support.It will be deformed by annular hollow cambered surface and separated with stress, power is applied to mold mounting plate
On, and then mold does not deform substantially on globoidal structure, when ensure that molding for generation for deformation, and then ensures injection molding essence
Degree.The present invention also proposes a kind of cross section cambered surface support " cambered surface 3 of annular hollow structure1/2The design principle of H ", i.e. cross section
Cambered surface design follows the half of chord length and 1.732 times of equal principles of action.By numerical simulation analysis it can be found that if L
Length is greater than 31/2H, rigidly decline is obvious for front template, and stress concentration easily occurs；If L length is less than 31/2H, mold mounting plate is just
It can occur obviously to deform.Only L Design of length selection is located at 31/2When the vicinity H, template can reach optimal mechanical performance.
To achieve the above object, the invention adopts the following technical scheme:
A kind of injector clamping, including clamping, front template and moving template, clamping are toggle rod type or hydraulic
Formula, front template and moving template include clamp force load plate, annular hollow cambered surface support construction and mold mounting plate；The ring
The hollow cambered surface support of shape, inner hollow, surrounding is annular cambered surface, and top is connected and fixed with clamp force load plate, bottom and mold
Mounting plate is connected and fixed, and forms closed hollow structure.
A kind of injector clamping of the present invention, is improved, the annular hollow arc of front template and moving template as a kind of structure
It is the horn mouth form that top diameter is big, base diameter is small on the outside of the support construction of face, structure is middle part hollow out, surrounding annular cambered surface
It smoothly transits.
A kind of injector clamping of the present invention, is improved, the annular hollow arc of front template and moving template as a kind of structure
It is the horn mouth form that top diameter is big, base diameter is small on the outside of the support construction of face, structure is middle part hollow out, surrounding annular cambered surface
It smoothly transits, cambered surface design in cross section follows " cambered surface " principle.A kind of injector clamping of the present invention, as a kind of structure
It improves, front template increases downwards boss structure at clamp force load plate tie rod hole.
A kind of injector clamping of the present invention, is improved as a kind of loss of weight, and the mold mounting plate surrounding of moving template is dug
Fall the circular arc portion of a quarter.
A kind of injector clamping of the present invention, is improved, front template is in the middle part of clamp force load plate as a kind of loss of weight
Aperture at injection canal.
A kind of injector clamping of the present invention is compared with original technology: the front template of clamping is by annular hollow cambered surface
Support composition closing hollow structure overall stiffness is high, and light weight can be such that clamp force load plate is more uniformly stressed, and mechanism is simple,
Convenient processing and manufacture；Clamp force load plate surface is more uniformly stressed, and improves the utilization rate of material.Moving template is using in annular
The design of empty cambered surface support will reduce the deformation of the generation of the mold mounting plate of moving template.When the die is closed, due to front template and dynamic
Template uses the design of annular hollow cambered surface support construction, occurs mainly in deformation at globoidal structure, and stress is mainly distributed
On the mounting plate of mold, and then reduce the deformation that molding locking rear mold occurs.
Detailed description of the invention
Fig. 1 is the position of the present invention a kind of front moulding board of injection machine and moving template of injector clamping in clamping
Schematic diagram.
Fig. 2 is a kind of " cambered surface 3 of the front template cambered surface support of injector clamping of the present invention1/2The signal of H " design principle
Figure.
Fig. 3 is a kind of overall structure diagram of the front template of injector clamping of the present invention.
Fig. 4 is a kind of part (broken section) structural schematic diagram of the front template of injector clamping of the present invention.
Fig. 5 is a kind of (right view) structural schematic diagram of the moving template of injector clamping of the present invention.
Fig. 6 is a kind of overall structure diagram of the moving template of injector clamping of the present invention.
Fig. 7 is a kind of part (section view) structural schematic diagram of the moving template of injector clamping of the present invention.
Fig. 8 is the stress diagram of front template and moving template in a kind of clamping of injector clamping of the present invention.
In figure: 1, front template clamp force load plate, 2, the support of front template annular hollow cambered surface, 3, the installation of front template mold
Plate, 4, injection canal, 5, slot type through-hole, 6, T-slot, 7, pull rod guide holder, 8, boss structure, 9, support leg, 10, moving template
Mold mounting plate, 11, moving template annular hollow cambered surface support, 12, moving template clamp force load plate, 13, moving template sliding feet,
14, tie rod hole.
Specific embodiment
A kind of injector clamping of the present invention, as shown in Fig. 3,4,5,6,7, including clamping, front template and dynamic model
Plate, front template plate include front template clamp force load plate 1, front template annular hollow cambered surface support 2, front template mold mounting plate 3,
Moving template includes moving template mold mounting plate 10, moving template annular hollow cambered surface support 11 and moving template clamp force load plate 12.
Wherein there is pull rod guide holder 7 for 1 four jiaos of front template clamp force load plate, there is support leg 9, the load of front template clamp force below front template
1 lower surface of plate is connect with front template annular hollow cambered surface support 2, and 12 4 jiaos of moving template clamp force load plate has tie rod hole 14, is moved
12 lower surface of mould locking power load plate is connect with moving template annular hollow cambered surface support 11, has moving template sliding below moving template
Foot 13；Wherein front template annular hollow cambered surface support 2 and moving template annular hollow cambered surface support 11 middle part for engraved structure, and four
All annular cambered surface transition, as shown in Fig. 2, lower surface and front template mold mounting plate 3 and moving template mold mounting plate 10 are fixed；?
Injection canal 4 in the middle part of front template is provided with slot type through-hole 5；There is boss structure 8 at pull rod guide holder 7；Front template and dynamic model
T-slot 6 is provided on the mold mounting plate of plate.Moving template is received the mold clamping force that elbow-bar mechanism is given by the arm of force 12.
The analysis of Clamping Device of Injection Moulding Machine stress condition:
As shown in Fig. 1,8, the present invention is designed, pulling force of the clamp force load plate quadrangle of front template by pull rod, in annular
Pulling force at pull rod is converted the pressure along annular hollow cambered surface support construction by empty cambered surface support construction, the change caused by clamp force
Shape occurs at the structure of cambered surface.This blocked center structure has the advantages that rigidity is high, while improving the utilization rate of material,
In molding since deformation occurs substantially for the mold mounting plate of front template and moving template, and then it ensure that the shape of injected articles
And dimensional accuracy.
Claims (7)
1. a kind of injector clamping, it is characterised in that: including clamping, front template and moving template, clamping is elbow
Rod-type or fluid pressure type, front template and moving template include clamp force load plate, annular hollow cambered surface support construction and mold installation
Plate；The annular hollow cambered surface support, inner hollow, surrounding is annular cambered surface, and top is connected and fixed with clamp force load plate,
Bottom is connected and fixed with mold mounting plate, forms closed hollow structure.
2. a kind of injector clamping according to claim 1, it is characterised in that: in the annular of front template and moving template
It is the horn mouth form that top diameter is big, base diameter is small on the outside of empty cambered surface support construction, structure is middle part hollow out, surrounding annular
Cambered surface smoothly transits.
3. a kind of injector clamping according to claim 1, it is characterised in that: in the annular of front template and moving template
It is the horn mouth form that top diameter is big, base diameter is small on the outside of empty cambered surface support construction, structure is middle part hollow out, surrounding annular
Cambered surface smoothly transits.
4. a kind of injector clamping according to claim 2 or 3, it is characterised in that: cambered surface design in cross section follows
1.732 times of equal principles of the half of chord length and action.
5. a kind of injector clamping according to claim 1, it is characterised in that: front template is drawn in clamp force load plate
At rod aperture, increase boss structure downwards.
6. a kind of injector clamping according to claim 1, it is characterised in that: the mold mounting plate surrounding of moving template
Dig up the circular arc portion of a quarter.
7. a kind of injector clamping according to claim 1, it is characterised in that: front template is in clamp force load plate
Aperture at the injection canal in portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811363776.4A CN109382985B (en) | 2018-11-16 | 2018-11-16 | Mold closing mechanism of injection machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811363776.4A CN109382985B (en) | 2018-11-16 | 2018-11-16 | Mold closing mechanism of injection machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109382985A true CN109382985A (en) | 2019-02-26 |
| CN109382985B CN109382985B (en) | 2024-02-02 |
Family
ID=65429439
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811363776.4A Active CN109382985B (en) | 2018-11-16 | 2018-11-16 | Mold closing mechanism of injection machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109382985B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113787686A (en) * | 2021-07-28 | 2021-12-14 | 海天塑机集团有限公司 | Mold opening method and system for two-plate injection molding machine of spring mold |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2094217A (en) * | 1981-03-05 | 1982-09-15 | Teledyne Ind | Method and apparatus for action moulding solid steel-banded press-on industrial rubber tyres |
| JP2001341165A (en) * | 2000-05-30 | 2001-12-11 | Sekisui Chem Co Ltd | Mold for injection molding |
| CN101030232A (en) * | 2007-02-05 | 2007-09-05 | 中国建筑第八工程局 | Method for designing and arranging template of arc-curved axis-rotating oval casing structure |
| CN204640700U (en) * | 2015-05-28 | 2015-09-16 | 山东通佳机械有限公司 | Front mould board of injection machine |
| CN108000789A (en) * | 2017-12-29 | 2018-05-08 | 苏州杰锐思自动化设备有限公司 | Turntable clamping |
-
2018
- 2018-11-16 CN CN201811363776.4A patent/CN109382985B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2094217A (en) * | 1981-03-05 | 1982-09-15 | Teledyne Ind | Method and apparatus for action moulding solid steel-banded press-on industrial rubber tyres |
| JP2001341165A (en) * | 2000-05-30 | 2001-12-11 | Sekisui Chem Co Ltd | Mold for injection molding |
| CN101030232A (en) * | 2007-02-05 | 2007-09-05 | 中国建筑第八工程局 | Method for designing and arranging template of arc-curved axis-rotating oval casing structure |
| CN204640700U (en) * | 2015-05-28 | 2015-09-16 | 山东通佳机械有限公司 | Front mould board of injection machine |
| CN108000789A (en) * | 2017-12-29 | 2018-05-08 | 苏州杰锐思自动化设备有限公司 | Turntable clamping |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113787686A (en) * | 2021-07-28 | 2021-12-14 | 海天塑机集团有限公司 | Mold opening method and system for two-plate injection molding machine of spring mold |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109382985B (en) | 2024-02-02 |
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