CN102241120B - Pressure device for locking mould - Google Patents
Pressure device for locking mould Download PDFInfo
- Publication number
- CN102241120B CN102241120B CN201110179910.7A CN201110179910A CN102241120B CN 102241120 B CN102241120 B CN 102241120B CN 201110179910 A CN201110179910 A CN 201110179910A CN 102241120 B CN102241120 B CN 102241120B
- Authority
- CN
- China
- Prior art keywords
- pressure
- mould
- push pedal
- pressure device
- locking
- 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.)
- Expired - Fee Related
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
- B22D17/20—Accessories: Details
- B22D17/26—Mechanisms or devices for locking or opening dies
- B22D17/266—Mechanisms or devices for locking or opening dies hydraulically
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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
- B29C45/64—Mould opening, closing or clamping devices
- B29C45/67—Mould opening, closing or clamping devices hydraulic
- B29C45/6707—Mould opening, closing or clamping devices hydraulic without relative movement between the piston and the cylinder of the clamping device during the mould opening or closing movement
- B29C45/6714—Mould opening, closing or clamping devices hydraulic without relative movement between the piston and the cylinder of the clamping device during the mould opening or closing movement using a separate element transmitting the mould clamping force from the clamping cylinder to the mould
- B29C45/6721—Mould opening, closing or clamping devices hydraulic without relative movement between the piston and the cylinder of the clamping device during the mould opening or closing movement using a separate element transmitting the mould clamping force from the clamping cylinder to the mould the separate element being displaceable with respect to the mould or the clamping cylinder
-
- 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
- B29C45/67—Mould opening, closing or clamping devices hydraulic
- B29C45/6778—Stroke adjusting or limiting means
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
Abstract
The invention relates to a pressure device for locking a mould. The pressure device comprises a pushing plate, wherein the pushing plate is arranged between a mould plate of a mould assembling mechanism and a corresponding mould; a clearance is reserved between the pushing plate and the mould plate; a pressure bag is arranged in the clearance; the pressure bag is made of elastic plastic material; and a metal connector, which is connected with a hydraulic device for filling a pressure medium into the pressure bag, is formed on a side wall of the pressure bag. Compared with the prior art, the pressure device for locking the mould provided by the invention can be used together with the mould assembling mechanism of related equipment, the defects of a hydraulic mould assembling mechanism, such as complex structure, high cost, low efficiency and high oil linkage probability, can be overcome. Meanwhile, the defects that a crank shaft type mould assembling mechanism is difficult to be controlled, can be easily abraded and has low precision and short service life are also overcome. In the pressure device for locking mould, the pushing plate and the pressure bag arranged between the mould plate and the mould of the mould assembling mechanism are used for replacing a traditional oil cylinder to realize a mould locking function of the mould assembling mechanism for an industrial machine, therefore the effects of high pressure rise speed and no need of lubrication can be achieved. Besides, the pressure device has the advantages of low manufacturing cost, convenience in use, low energy consumption and long service life.
Description
Technical field
The present invention relates to pressure apparatus, specifically refer to a kind of pressure device for locking mould.
Background technology
In industrial forming field, such as injection-moulding plastic, die cast metal moulding and other products, need the operations such as mold pressing or compacting all need under certain pressure, to operate, conventionally adopt clamping mechanism to provide to these operations and keep pressure.The clamping mechanism using at present has two kinds conventionally, and a kind of is full hydraulic clamping mechanism, and another kind is toggle link mechanical lock mold mechanism.
Full hydraulic clamping mechanism, by being arranged on the oil cylinder pushing moving platen in machine template, is pushed mould to solid plate direction matched moulds, finally by setting up the high pressure of oil cylinder inner fluid, comes mold-locked.Owing to will guaranteeing that the active force of mold-locked is very large, make required oil cylinder bulky, cost is very high, and oil cylinder volume is large simultaneously, topping up difficulty, efficiency is low, makes difficulty, and easily leaks.
Toggle rod type clamping mechanism is comprised of Mode-locking oil cylinder and two symmetrical toggle side rod mechanisms, and when locked mode, mould shifting oil cylinder enters hydraulic oil and promotes crosshead by crank connecting rod support directly, and system produces strain and reaches clamp force.Because clamp force is to be out of shape and to be reached by system resilience, so clamp force inaccuracy, the clamp force of different molding cycles is adjusted difficulty; clamp force in same molding cycle can not be adjusted; and this mechanical clamping mechanism is more difficult lubricated, easily damages, and service life is short.
Summary of the invention
Technical problem to be solved by this invention is that the present situation for prior art provides a kind of and can substitute traditional hydraulic jack for locked mode function and the clamp force of machine clamping mechanism are easily adjusted, can not leaked and cost is low pressure device for locking mould.
The present invention solves the problems of the technologies described above adopted technical scheme: this pressure device for locking mould; it is characterized in that comprising and be arranged on the template of clamping mechanism and the push pedal between corresponding mould; between described push pedal and template, there is space; in this space, be provided with a pressure bladder; this pressure bladder adopts has flexible plastic cement material preparation, and the sidewall of described pressure bladder is provided with the metal interface being connected with the hydraulic test that fills plus-pressure medium in this pressure bladder.
Consider and the conformability of existing equipment, described pressure bladder and push pedal be structure in the form of a ring.Pressure bladder is designed to circulus, facilitates the ejecting mechanism can be by former route ejecting product; Or injection mechanism penetrates by former route
The rounded circulus of described pressure bladder, and the ratio of the external diameter of this pressure bladder and the height in described space is 20-300.By pressure bladder and void designs, be flat, can better coordinate the structure of existing equipment and the space of existing equipment to use, and flat structure is than other structure, the service life after the large and pressure-bearing of effective area is better.
Preferably, the height in described space is 5-30mm; The thickness of the cyst wall of described pressure bladder is 1.5-8.0mm; This size can better coordinate the space of existing injector, die casting machine or forcing press to use.
As the improvement of such scheme, described pressure bladder comprises first wall sheet and the second wall sheet suitable with the cross section of this pressure bladder; The periphery of described the first wall sheet is inwardly folding rear mutually bonding with the periphery of the second wall sheet, and the outer wall cementation laminated of described the first wall sheet periphery is on the inwall of described the second wall sheet periphery.This structure facilitates the manufacture of pressure bladder, and the superimposed rear bonding direct impact that can avoid pressure medium edge gap in punching press of periphery, effectively guarantee the security of use and the service life of pressure bladder, and after punching press, in pressure maintaining period, can make that superimposed part presses tighter, bonding more firm.
In order to guarantee the bonding of the first wall sheet and the second wall sheet, the surface irregularity of described the first wall sheet and described the second wall sheet phase bonding portion; Binding agent can be penetrated in each wall sheet better like this, and the fastness after bonding is better.
Because the desired pressure of locked mode is conventionally higher, when filling pressure medium in pressure bladder, pressure medium has to the mobile trend of the fit clearance direction of push pedal and template, and this trend plays the effect of a shearing force to the cyst wall of pressure bladder.In order to offset or avoid this shearing force, as the improvement of such scheme, the surface of template is provided with annular recess described in described push pedal subtend.
Preferably, the longitudinal section of described groove is arc, the good buffer effect of this structure to pressure.
The depth capacity of described groove is 1.0mm.
In theory, the distance at groove distance push pedal edge is less will get well, but groove can not acutangulate with the circumferential of push pedal, and when distance is zero, the acute angle that the cooperation circumference of the face of groove and push pedal forms can breakdown pressure capsule.Preferably, described in described groove distance, the distance at push pedal edge is 0.5-1.0mm.
Equipment for clamping mechanism transverse movement; due to the template of clamping mechanism and the Action of Gravity Field of push pedal self; therefore the space between template and two counterfaces of push pedal can be slightly different; the fit clearance that is lower surface is less than the fit clearance between upper surface; like this, between push pedal and template, during relative motion, the wearing and tearing between lower surface are more serious; and fit clearance between upper surface is larger, the shear action of pressure to pressure bladder cyst wall in the time of can increasing the weight of punching press when serious.For fear of the appearance of this situation, described push pedal and described template are provided with the limited post of guiding use, and this limited post is located in described push pedal and described template and does not contact with described pressure bladder, by limited post, comes antigravity.
Compared with prior art, pressure device for locking mould provided by the present invention coordinates the clamping on relevant device to use, and has overcome that hydraulic mold locking mechanism structure is complicated, cost is high, efficiency is low and the shortcoming of easy oil leakage; Also overcome In A Diecasting Equipment clamping clamp force and be difficult to the defect of controlling, precision is low, easy to wear and the life-span is short simultaneously.The present invention arranges the locked mode function that push pedal and pressure bladder substitute existing fluid pressure type and toggle rod type clamping mechanism between the template of clamping mechanism and mould, and the rate of rise is fast, and low cost of manufacture, easy to use, and energy consumption is little, long service life.
Accompanying drawing explanation
Fig. 1 is the perspective view that the embodiment of the present invention is used state;
Fig. 2 is the transverse sectional view of Fig. 1;
Fig. 3 is the cutaway view of pressure bladder in the embodiment of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing, embodiment is described in further detail the present invention.
The present embodiment be take injector and this pressure device for locking mould is described as example.
As shown in Figure 1 to Figure 3, this pressure device for locking mould arranges between the template 2 of mould 1 and clamping mechanism; In prior art, clamping mechanism includes three templates, the one, rear pattern plate, the one, moving platen, the one, solid plate.During work, solid plate is motionless conventionally, and moving platen moves back and forth.The pressure apparatus that the present embodiment provides can be arranged between moving platen and mould 1, also can be arranged between solid plate and mould, and solid plate and moving platen are referred to as to template.Pressure apparatus in the present embodiment comprises:
Pressure bladder 4, adopts and has flexible plastic material manufacture, comprises the first wall sheet 41 and the second wall sheet 42 of circular ring.The external diameter of the first wall sheet 41 and the second wall sheet 42 is 260mm, and internal diameter is 100mm, and wall thickness is 3mm.The inwall of the outer wall of the first wall sheet periphery and the second wall sheet periphery is made it to coarse with file polishing, even this two parts surface irregularity, then on these two parts, smear adhesive, stick with glue agent by the outer wall cementation laminated of the first wall sheet 41 peripheries on the inwall of the second wall sheet 42 peripheries.Pressure bladder after bonding is circular circulus.The cyst wall of the first wall sheet 41 is provided with oilhole, is provided with metal interface 44 in oilhole.Metal interface 44 in the present embodiment comprises that cross section is the adapter 441 of " T " font and is screwed onto the bolt 442 of taking on 441; The cyst wall of the first wall sheet is between the base of taking over and bolt.This structure can be installed to metal interface 44 on pressure bladder, and meanwhile, the cyst wall of pressure bladder plays again sealing function to this metal interface.
Limited post 5, is provided with four in the present embodiment, be located in push pedal 3 and template 2 and do not contact with pressure bladder 4, and limited post 5 mainly plays guiding push pedal and offsets the effect of gravity friction between push pedal and template.The two ends of limited post 5 can be fixed on position applicable in injector; Also can use the pull bar of injector clamping as limited post.
During use, the oil-out of hydraulic system is connected with metal structure 4.After matched moulds, open hydraulic system, to the interior oiling of pressure bladder 4, because pressure bladder internal capacity is very little, so that pressure bladder boosts is very fast.Rush after liquid, pressure bladder expands, and promote push pedal and exert pressure and pressurize to mould, thus locking die.
Pressure bladder rushes oil and boosts in process, and the existence of groove 21 has effectively cushioned the shear action that oiling sprays to gap between template and push pedal both ends of the surface, has avoided the destruction of this shearing force to pressure bladder cyst wall, has guaranteed use safety, has extended the service life of pressure bladder; The effect of the first wall sheet and the second wall sheet cementation laminated is under pressure, and both are bonding more firm, has further guaranteed to use the service life of safety and pressure bladder.
Claims (9)
1. a pressure device for locking mould, it is characterized in that comprising and be arranged on the template of clamping mechanism and the push pedal between corresponding mould, between described push pedal and template, there is space, in this space, be provided with a pressure bladder, this pressure bladder adopts has flexible plastic cement material preparation, and the sidewall of described pressure bladder is provided with the metal interface being connected with the hydraulic test that fills plus-pressure medium in this pressure bladder; Described in described push pedal subtend, on the surface of template, the marginal position near described push pedal is provided with annular recess.
2. pressure device for locking mould according to claim 1, is characterized in that described pressure bladder and push pedal structure in the form of a ring.
3. pressure device for locking mould according to claim 2, it is characterized in that the described rounded circulus of pressure bladder, and the ratio of the external diameter of this pressure bladder and the height in described space is 20-300.
4. pressure device for locking mould according to claim 3, the height that it is characterized in that described space is 5-30mm; The thickness of the cyst wall of described pressure bladder is 1.5-8.0mm.
5. according to the pressure device for locking mould described in the arbitrary claim of claim 1 to 4, it is characterized in that described push pedal and described template are provided with the limited post of guiding use, this limited post is located in described push pedal and described template.
6. pressure device for locking mould as claimed in claim 5, is characterized in that described pressure bladder comprises first wall sheet and the second wall sheet suitable with the cross section of this pressure bladder; The periphery of described the first wall sheet is inwardly folding rear mutually bonding with the periphery of the second wall sheet, and the outer wall cementation laminated of described the first wall sheet periphery is on the inwall of described the second wall sheet periphery.
7. pressure device for locking mould according to claim 1, the longitudinal section that it is characterized in that described groove is arc.
8. pressure device for locking mould according to claim 7, the depth capacity that it is characterized in that described groove is 1.0mm.
9. pressure device for locking mould according to claim 1, is characterized in that the distance at push pedal edge is 0.5-1.0mm described in described groove distance.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110179910.7A CN102241120B (en) | 2011-06-28 | 2011-06-28 | Pressure device for locking mould |
| PCT/CN2012/000866 WO2013000274A1 (en) | 2011-06-28 | 2012-06-25 | Pressure device for mould locking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110179910.7A CN102241120B (en) | 2011-06-28 | 2011-06-28 | Pressure device for locking mould |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102241120A CN102241120A (en) | 2011-11-16 |
| CN102241120B true CN102241120B (en) | 2014-05-07 |
Family
ID=44959449
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110179910.7A Expired - Fee Related CN102241120B (en) | 2011-06-28 | 2011-06-28 | Pressure device for locking mould |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN102241120B (en) |
| WO (1) | WO2013000274A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111136236A (en) * | 2020-01-20 | 2020-05-12 | 宜宾职业技术学院 | Automatic locking mechanism of die casting die |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102241120B (en) * | 2011-06-28 | 2014-05-07 | 陈国永 | Pressure device for locking mould |
| CN104029360B (en) * | 2014-05-12 | 2016-03-16 | 陈国永 | A kind of pressure device for locking mould |
| CN104210078B (en) * | 2014-08-15 | 2016-10-12 | 宁波通用塑料机械制造有限公司 | A kind of clamping |
| CN104260296B (en) * | 2014-08-18 | 2016-07-06 | 宁波通用塑料机械制造有限公司 | A kind of injection machine matched molds apparatus |
| CN112848172B (en) * | 2021-01-19 | 2022-04-22 | 华南理工大学 | Lightweight isostatic pressing flexible mold locking mechanism and method for high-speed precise injection machine |
| CN114808959A (en) * | 2022-06-24 | 2022-07-29 | 徐州威聚电子材料有限公司 | Large-scale mounting bracket preset basis of photovoltaic board is put and is removed device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2707466Y (en) * | 2004-07-06 | 2005-07-06 | 河南金龙精密铜管股份有限公司 | Internal high-pressure forming die with multiple mold clamping forces |
| CN101811353A (en) * | 2009-02-25 | 2010-08-25 | 鸿富锦精密工业（深圳）有限公司 | Moving mould plate and injection molding device using same |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101596759B (en) * | 2009-04-30 | 2012-01-11 | 钟爱民 | Air sac type vulcanizer |
| CN102241120B (en) * | 2011-06-28 | 2014-05-07 | 陈国永 | Pressure device for locking mould |
| CN202174758U (en) * | 2011-06-28 | 2012-03-28 | 陈国永 | Pressure device for mould locking |
-
2011
- 2011-06-28 CN CN201110179910.7A patent/CN102241120B/en not_active Expired - Fee Related
-
2012
- 2012-06-25 WO PCT/CN2012/000866 patent/WO2013000274A1/en active Application Filing
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2707466Y (en) * | 2004-07-06 | 2005-07-06 | 河南金龙精密铜管股份有限公司 | Internal high-pressure forming die with multiple mold clamping forces |
| CN101811353A (en) * | 2009-02-25 | 2010-08-25 | 鸿富锦精密工业（深圳）有限公司 | Moving mould plate and injection molding device using same |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111136236A (en) * | 2020-01-20 | 2020-05-12 | 宜宾职业技术学院 | Automatic locking mechanism of die casting die |
| CN111136236B (en) * | 2020-01-20 | 2020-09-01 | 宜宾职业技术学院 | Automatic locking mechanism of die casting die |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102241120A (en) | 2011-11-16 |
| WO2013000274A1 (en) | 2013-01-03 |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Hu Tongqing Inventor before: Chen Guoyong |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20171012 Address after: 253700 No. 038 Zhang Feng Village, Chang town, Qingyun County, Dezhou, Shandong Patentee after: Hu Tongqing Address before: North Willow Street Jiangdong District 315040 of Zhejiang province Ningbo 128 Lane 83, Room 302 Patentee before: Chen Guoyong |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140507 Termination date: 20180628 |