CN107244050B - Direct-pressing high-speed clamping mechanism - Google Patents
Direct-pressing high-speed clamping mechanism Download PDFInfo
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- CN107244050B CN107244050B CN201710628370.3A CN201710628370A CN107244050B CN 107244050 B CN107244050 B CN 107244050B CN 201710628370 A CN201710628370 A CN 201710628370A CN 107244050 B CN107244050 B CN 107244050B
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- 238000000034 method Methods 0.000 claims abstract 2
- 230000000712 assembly Effects 0.000 claims description 2
- 238000000429 assembly Methods 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 230000006835 compression Effects 0.000 claims description 2
- 239000007788 liquid Substances 0.000 claims description 2
- 238000000465 moulding Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007907 direct compression Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000012768 molten material Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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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
- B29C45/64—Mould opening, closing or clamping devices
- B29C45/67—Mould opening, closing or clamping devices hydraulic
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
A direct-pressing high-speed clamping mechanism. The method is characterized in that: the inner ring of the communicating pipe and the central groove form a first mold moving oil cavity, the first piston and the front end part of the first cylinder body form a second mold moving oil cavity, the first piston, the rear end part of the first cylinder body and the outer ring of the communicating pipe form a first mold locking oil cavity, and the second piston and the front end part of the second cylinder body form a second mold locking oil cavity; the first mold moving oil cavity is connected with a first working oil port of the electromagnetic reversing valve through a pipeline, the second mold moving oil cavity is connected with a second working oil port of the electromagnetic reversing valve through a pipeline, the first mold locking oil cavity is communicated with the second mold locking oil cavity through a pipeline, and a check valve capable of freely circulating to the first mold locking oil cavity is arranged in the second mold locking oil cavity. Its advantage lies in first mode locking oil pocket and second mode locking oil pocket realization inner loop, need not to connect extra oil tank oil pump, and not only speed is faster, moreover energy-concerving and environment-protective more.
Description
Technical Field
The invention relates to a plastic machine or a press device, in particular to a direct-pressing high-speed clamping mechanism.
Background
Both the molding machine and the press machine are molding equipment for integrally molding products by pressure.
Generally, both the molding machine and the press are provided with a mold locking mechanism, which is used for ensuring the mold to be closed, opened and ejected, and simultaneously, after the mold is closed, sufficient mold locking force is provided for the mold to resist the mold cavity pressure generated when molten materials enter the mold cavity, so that the bad phenomena of the product caused by the mold opening and the like are prevented.
The existing mold locking mechanism usually comprises a mold locking oil cylinder and a mold moving oil cylinder which are independent from each other, for example, a synchronous control hydraulic circuit (CN 104476741) of the mold locking oil cylinder and the mold moving oil cylinder of the injection molding machine disclosed in the Chinese invention patent application, the mold locking oil cylinder and the mold moving oil cylinder are independent from each other, the mold locking oil cylinder also needs to be connected with an oil tank and an oil pump through an electromagnetic reversing valve, and the oil pump used is large in discharge capacity and high in power due to the fact that large mold locking force is needed during mold locking, not only is the cost high and energy-saving, but also the mold locking speed is slow.
Disclosure of Invention
In order to overcome the defects of the background art, the invention provides a direct-pressing high-speed clamping mechanism, which solves the problems of low speed and energy saving of the conventional clamping mechanism.
The technical scheme adopted by the invention is as follows: a direct-compression high-speed mold locking mechanism comprises a rear supporting seat, a plurality of guide rods and a movable mold plate, wherein the movable mold plate is connected with the rear supporting seat through the guide rods and can realize relative sliding motion along the guide rods; the oil cylinder device also comprises a first oil cylinder assembly, a second oil cylinder assembly and an electromagnetic reversing valve; the first oil cylinder assembly comprises a first cylinder body, a first piston rod and a communicating pipe, the first cylinder body is fixed on the rear supporting seat, one end of the first piston rod is connected with the movable template, the other end of the first piston rod extends into the first cylinder body, a first piston matched with the inner wall of the first cylinder body is arranged on the outer ring of one end, arranged in the first cylinder body, of the first piston rod, a central groove matched with the communicating pipe is arranged in the center of the end face, the communicating pipe is fixedly arranged in the first cylinder body, one end of the communicating pipe is inserted into the central groove, and the other end of the communicating pipe extends out of the first cylinder body; the second oil cylinder assembly comprises a second cylinder body and a second piston rod, the second cylinder body is fixed on the rear supporting seat, one end of the second piston rod is connected with the movable template, the other end of the second piston rod extends into the second cylinder body, and an outer ring of one end of the second piston rod, which is arranged in the second cylinder body, is provided with a second piston matched with the inner wall of the second cylinder body;
the inner ring of the communicating pipe and the central groove form a first mold moving oil cavity, the first piston and the front end part of the first cylinder body form a second mold moving oil cavity, the first piston, the rear end part of the first cylinder body and the outer ring of the communicating pipe form a first mold locking oil cavity, and the second piston and the front end part of the second cylinder body form a second mold locking oil cavity; the first mold moving oil cavity is connected with a first working oil port of the electromagnetic reversing valve through a pipeline, the second mold moving oil cavity is connected with a second working oil port of the electromagnetic reversing valve through a pipeline, the first mold locking oil cavity is communicated with the second mold locking oil cavity through a pipeline, and a check valve enabling the second mold locking oil cavity to freely circulate to the first mold locking oil cavity is arranged.
The second oil cylinder assemblies are provided with two groups and are symmetrically arranged at the two sides of the first oil cylinder assembly respectively.
The maximum volume of the first mold locking oil cavity is equal to the sum of the maximum volumes of the two second mold locking oil cavities.
The rear supporting seat, the first cylinder body and the second cylinder body are of an integrated structure.
The one-way valve is a liquid filling valve.
The check valve is connected with a second working oil port of the electromagnetic directional valve through a pipeline.
The beneficial effects of the invention are: by adopting the scheme, the internal circulation of the first mold locking oil cavity and the second mold locking oil cavity is realized, an additional oil tank oil pump does not need to be connected, the speed is higher, and the energy conservation and the environmental protection are realized.
Drawings
Fig. 1 is a schematic structural diagram of a direct-pressing high-speed clamping mechanism according to an embodiment of the present invention.
Fig. 2 is a sectional view of a direct-pressing high-speed clamping mechanism according to an embodiment of the invention.
Fig. 3 is a schematic diagram of an oil path structure of the direct-pressure high-speed clamping mechanism according to the embodiment of the invention.
In the figure, 1-rear supporting seat, 2-guide rod, 3-movable mould plate, 4-first cylinder body, 5-first piston rod, 51-first piston, 52-central groove, 6-communicating pipe, 7-second cylinder body, 8-second piston rod, 81-second piston, 11-first mould moving oil cavity, 12-second mould moving oil cavity, 9-first mould locking oil cavity, 10-second mould locking oil cavity, 13-electromagnetic reversing valve and 14-one-way valve.
Detailed Description
The embodiments of the invention will be further described with reference to the accompanying drawings:
as shown in the figure, the vertical compression high-speed clamping mechanism comprises a rear supporting seat 1, a plurality of guide rods 2, a movable template 3, a first oil cylinder assembly, a second oil cylinder assembly, an electromagnetic reversing valve 13 and a reversing valve 14, wherein the movable template 3 is connected with the rear supporting seat 1 through the guide rods 2 and can slide relatively along the guide rods 2.
As shown in the figure, the first cylinder assembly comprises a first cylinder 4, a first piston rod 5 and a communicating pipe 6, the first cylinder 4 is fixed on the rear supporting seat 1, one end of the first piston rod 5 is connected with the movable template 3, the other end of the first piston rod extends into the first cylinder 4, a first piston 51 matched with the inner wall of the first cylinder 4 is arranged on the outer ring of one end of the first piston rod 5 arranged in the first cylinder 4, a central groove 52 matched with the communicating pipe 6 is arranged in the center of the end face, the communicating pipe 6 is fixedly arranged in the first cylinder 4, one end of the communicating pipe is inserted into the central groove 52, and the other end of the communicating pipe extends out of the first cylinder 4; the second oil cylinder assembly comprises a second cylinder body 7 and a second piston rod 8, the second cylinder body 7 is fixed on the rear supporting seat 1, one end of the second piston rod 8 is connected with the movable template 3, the other end of the second piston rod extends into the second cylinder body 7, and an outer ring of one end, arranged in the second cylinder body 7, of the second piston rod 8 is provided with a second piston 81 matched with the inner wall of the second cylinder body 7; a first mold moving oil cavity 11 is formed by an inner ring of the communicating pipe 6 and the central groove 52, a second mold moving oil cavity 12 is formed by the first piston 51 and the front end part of the first cylinder body 4, a first mold locking oil cavity 9 is formed by the first piston 51, the rear end part of the first cylinder body 4 and the outer ring of the communicating pipe 6, and a second mold locking oil cavity 10 is formed by the second piston 81 and the front end part of the second cylinder body 7; the first mold moving oil cavity 11 is connected with a first working oil port of the electromagnetic reversing valve 13 through a pipeline, the second mold moving oil cavity 12 is connected with a second working oil port of the electromagnetic reversing valve 13 through a pipeline, the first mold locking oil cavity 9 is communicated with the second mold locking oil cavity 10 through a pipeline, and a check valve 14 is arranged on the second mold locking oil cavity 10 and can freely circulate to the first mold locking oil cavity 9.
The working principle is as follows: when the mold is closed, an oil inlet P of the electromagnetic directional valve is communicated with the first working oil port A, an oil return port T is communicated with the second working oil port B, at the moment, pressure oil enters the first mold moving oil cavity 11 through a pipeline and pushes the first piston rod 5 to move, the movable template 3 is driven to be pushed outwards, the oil in the second mold moving oil cavity 12 flows back to the oil tank through the pipeline, meanwhile, the movable template drives the second piston rod 8 to move, the oil in the second mold locking oil cavity 10 flows into the first mold locking oil cavity 9, backflow is prevented through the one-way valve 14, and the required mold locking force is achieved;
when the mold is opened, an oil inlet P of the electromagnetic directional valve is communicated with the second working oil port B, an oil return port T is communicated with the first working oil port A, the check valve is opened, at the moment, pressure oil enters the second mold moving oil cavity 12 through a pipeline, the first piston rod 5 is pushed to move, the movable mold plate 3 is driven to return, oil in the first mold moving oil cavity 11 flows back to the oil tank through the pipeline, and oil in the first mold locking oil cavity 9 flows back to the second mold locking oil cavity 10.
Through the structure, the internal circulation of the first mold locking oil cavity and the second mold locking oil cavity is realized, an additional oil tank oil pump does not need to be connected, the speed is higher, and the energy conservation and the environmental protection are realized.
Wherein, check valve 14 is the prefill valve, check valve 14 passes through the second working oil mouth of pipe connection solenoid directional valve 13, and when the die sinking, pressure oil passes through the pipeline and gets into the second and move the mould oil intracavity, and partial pressure oil can get into check valve 14, makes check valve 14 open and realizes the pressure release circulation, has further guaranteed the synchronism effect of hydraulic pressure work, improves the die sinking speed.
As shown in the figure, back supporting seat 1, first cylinder body 4, second cylinder body 7 are the integral type structure, just second cylinder subassembly is equipped with two sets ofly altogether to the symmetry sets up respectively in the both sides position of first cylinder subassembly, and the maximum volume sum of the maximum volume of first mode locking oil pocket 9 and two second mode locking oil pockets 10 is the same moreover, and the structure is compacter reasonable, and production, assembly are simpler, reduce manufacturing cost.
The examples should not be construed as limiting the invention but any modifications made based on the spirit of the invention should be within the scope of protection of the invention.
Claims (6)
1. A vertical compression high-speed clamping mechanism comprises a rear supporting seat (1), a plurality of guide rods (2) and a movable template (3), wherein the movable template (3) is connected with the rear supporting seat (1) through the guide rods (2) and can slide relatively along the guide rods (2);
the method is characterized in that: the oil cylinder device also comprises a first oil cylinder assembly, a second oil cylinder assembly and an electromagnetic reversing valve (13); the first oil cylinder assembly comprises a first cylinder body (4), a first piston rod (5) and a communication pipe (6), the first cylinder body (4) is fixed on the rear supporting seat (1), one end of the first piston rod (5) is connected with the movable template (3), the other end of the first piston rod extends into the first cylinder body (4), a first piston (51) matched with the inner wall of the first cylinder body (4) is arranged on the outer ring of one end of the first piston rod (5) arranged in the first cylinder body (4), a central groove (52) matched with the communication pipe (6) is arranged in the center of the end face, the communication pipe (6) is fixedly arranged in the first cylinder body (4), one end of the communication pipe is inserted into the central groove (52), and the other end of the communication pipe extends out of the first cylinder body (4); the second oil cylinder assembly comprises a second cylinder body (7) and a second piston rod (8), the second cylinder body (7) is fixed on the rear supporting seat (1), one end of the second piston rod (8) is connected with the movable template (3), the other end of the second piston rod extends into the second cylinder body (7), and a second piston (81) matched with the inner wall of the second cylinder body (7) is arranged on the outer ring of one end, arranged in the second cylinder body (7), of the second piston rod (8);
a first mold moving oil cavity (11) is formed by an inner ring of the communicating pipe (6) and the central groove (52), a second mold moving oil cavity (12) is formed by the first piston (51) and the front end part of the first cylinder body (4), a first mold locking oil cavity (9) is formed by the first piston (51), the rear end part of the first cylinder body (4) and the outer ring of the communicating pipe (6), and a second mold locking oil cavity (10) is formed by the second piston (81) and the front end part of the second cylinder body (7);
the mould is characterized in that the first mould moving oil cavity (11) is connected with a first working oil port of the electromagnetic reversing valve (13) through a pipeline, the second mould moving oil cavity (12) is connected with a second working oil port of the electromagnetic reversing valve (13) through a pipeline, the first mould locking oil cavity (9) is communicated with the second mould locking oil cavity (10) through a pipeline, and a check valve (14) which can freely circulate to the first mould locking oil cavity (9) through the second mould locking oil cavity (10) is arranged.
2. The direct-pressing high-speed clamping mechanism according to claim 1, characterized in that: the second oil cylinder assemblies are provided with two groups and are symmetrically arranged at the two sides of the first oil cylinder assembly respectively.
3. The direct-pressing high-speed clamping mechanism according to claim 2, characterized in that: the maximum volume of the first mold locking oil cavity (9) is the same as the sum of the maximum volumes of the two second mold locking oil cavities (10).
4. The direct-pressing high-speed clamping mechanism according to claim 2, characterized in that: the rear supporting seat (1), the first cylinder body (4) and the second cylinder body (7) are of an integrated structure.
5. The direct-pressing high-speed clamping mechanism according to claim 1, characterized in that: the one-way valve (14) is a liquid filling valve.
6. The direct-pressing high-speed clamping mechanism according to claim 5, wherein: the check valve (14) is connected with a second working oil port of the electromagnetic directional valve (13) through a pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710628370.3A CN107244050B (en) | 2017-07-28 | 2017-07-28 | Direct-pressing high-speed clamping mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710628370.3A CN107244050B (en) | 2017-07-28 | 2017-07-28 | Direct-pressing high-speed clamping mechanism |
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| Publication Number | Publication Date |
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| CN107244050A CN107244050A (en) | 2017-10-13 |
| CN107244050B true CN107244050B (en) | 2023-04-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710628370.3A Active CN107244050B (en) | 2017-07-28 | 2017-07-28 | Direct-pressing high-speed clamping mechanism |
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| CN (1) | CN107244050B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2404105A1 (en) * | 1974-01-29 | 1975-08-14 | Sommer Kg Dr Ing Fritz | MOLD CLAMPING UNIT, IN PARTICULAR. FOR INJECTION MOLDING MACHINES |
| US5776516A (en) * | 1996-08-12 | 1998-07-07 | Mannesmann Aktiengesellschaft | Two-platen injection molding machine |
| CN2770935Y (en) * | 2004-12-24 | 2006-04-12 | 益任实业有限公司 | Differential oil cylinder and logic valve signal |
| CN103770295A (en) * | 2014-01-21 | 2014-05-07 | 广东正茂精机有限公司 | Four-cylinder direct-pressure two-plate die closing mechanism of injection molding machine |
| CN105856522A (en) * | 2016-05-31 | 2016-08-17 | 现代精密塑胶模具（深圳）有限公司 | Die assembly mechanism for injection molding machine |
| CN206983183U (en) * | 2017-07-28 | 2018-02-09 | 温州剑红塑机设备有限公司 | A kind of vertical compression high speed clamping mechanism |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1031099A (en) * | 1962-11-28 | 1966-05-25 | Mannesmann Meer Ag | Hydraulically operated apparatus having application in injection moulding machines |
| EP1262302A1 (en) * | 1999-12-28 | 2002-12-04 | Ube Machinery Corporation, Ltd. | Mold clamping device, method of increasing/decreasing pressure for such device, and mold releasing method |
| DE10202374A1 (en) * | 2002-01-23 | 2003-07-24 | Krauss Maffei Kunststofftech | Twin plate closure system for an injection molding machine, comprises a fixed tensioning plate, a movable tensioning plate, and hydraulically actuated closure pistons |
| DE10215072A1 (en) * | 2002-04-05 | 2003-10-30 | Billion Sa | Hydraulic device for moving a machine part back and forth |
| CN201824536U (en) * | 2010-10-25 | 2011-05-11 | 黄步明 | Two-plate direct pressure clamping device |
| CN203726782U (en) * | 2014-01-21 | 2014-07-23 | 广东正茂精机有限公司 | Internal circulation clamping mechanism for injection molding machine |
-
2017
- 2017-07-28 CN CN201710628370.3A patent/CN107244050B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2404105A1 (en) * | 1974-01-29 | 1975-08-14 | Sommer Kg Dr Ing Fritz | MOLD CLAMPING UNIT, IN PARTICULAR. FOR INJECTION MOLDING MACHINES |
| US5776516A (en) * | 1996-08-12 | 1998-07-07 | Mannesmann Aktiengesellschaft | Two-platen injection molding machine |
| CN2770935Y (en) * | 2004-12-24 | 2006-04-12 | 益任实业有限公司 | Differential oil cylinder and logic valve signal |
| CN103770295A (en) * | 2014-01-21 | 2014-05-07 | 广东正茂精机有限公司 | Four-cylinder direct-pressure two-plate die closing mechanism of injection molding machine |
| CN105856522A (en) * | 2016-05-31 | 2016-08-17 | 现代精密塑胶模具（深圳）有限公司 | Die assembly mechanism for injection molding machine |
| CN206983183U (en) * | 2017-07-28 | 2018-02-09 | 温州剑红塑机设备有限公司 | A kind of vertical compression high speed clamping mechanism |
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| CN107244050A (en) | 2017-10-13 |
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Effective date of registration: 20240802 Address after: 315000 Xincheng village, Wuxiang Township, Yinzhou District, Ningbo City, Zhejiang Province Patentee after: Ningbo ruizhan Intelligent Equipment Co.,Ltd. Country or region after: China Address before: No. 35 Xingguo Road, High tech Industrial Development Zone, Wenzhou City, Zhejiang Province, 325000 (first floor) Patentee before: WENZHOU JIANHONG PLASTIC MACHINERY EQUIPMENT CO.,LTD. Country or region before: China |
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