CN106965393B - A kind of four cylinder directly locks the inner circulation structure of injection moulding machine mode-locking oil cylinder - Google Patents
A kind of four cylinder directly locks the inner circulation structure of injection moulding machine mode-locking oil cylinder Download PDFInfo
- Publication number
- CN106965393B CN106965393B CN201710217474.5A CN201710217474A CN106965393B CN 106965393 B CN106965393 B CN 106965393B CN 201710217474 A CN201710217474 A CN 201710217474A CN 106965393 B CN106965393 B CN 106965393B
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- Prior art keywords
- cylinder
- pull rod
- piston
- oil cylinder
- locking oil
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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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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/1423—Component parts; Constructional details
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/1423—Component parts; Constructional details
- F15B15/1447—Pistons; Piston to piston rod assemblies
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention discloses the inner circulation structures that four cylinders of one kind directly lock injection moulding machine mode-locking oil cylinder, it include solid plate and moving template, ejecting mechanism is connected on moving template, pull rod is symmetrically arranged on moving template, moving template is stretched out in one end of pull rod, and fixed by pull rod fixed mechanism, the other end of pull rod runs through the solid plate；The center of the non-stress side of pull rod offers control oil duct, rod outer sleeve is equipped with Mode-locking oil cylinder cylinder, it is located in the Mode-locking oil cylinder cylinder on pull rod and is provided with piston, the right end of piston is fixed with cover board, and slide valve is provided between piston and the outer wall of pull rod, spring is provided between slide valve and cover board, flange has been disposed radially inwardly on piston, oil-through hole is axially offered on piston, fuel feed hole is provided on solid plate, and fuel feed hole is communicated with the cavity on the left of Mode-locking oil cylinder cylinder inner piston；Mould shifting oil cylinder is connected on moving template.The present invention has the advantages that simple and reasonable for structure, manufacturing cost is low, can simplify hydraulic circuit, improves pull rod intensity.
Description
Technical field
The present invention relates to four cylinders directly to lock injection molding machine manufacturing technology field, and especially a kind of four cylinders directly lock injection moulding machine mode-locking oil cylinder
Inner circulation structure.
Background technique
It is common one of the form of injection molding machine that four cylinders, which directly lock injection molding machine, is directly locked in injection molding machine in existing four cylinder, mode locking oil
Cylinder inner fluid type of flow during shifting formwork has flows outside (oil liquid is discharged outside oil cylinder) and internal flow, and (oil liquid is in oil cylinder
Left and right play is commonly called as interior circulation) two kinds of forms.Flows outside mechanism is simple, easy to maintenance, but a disadvantage is that oil liquid travel distance
It is too long, equipment it is bulky, and the general diameter of pipeline is smaller, will cause larger hydraulic slip.
Apart from short, hydraulic slip is small, compact-sized for internal flow (interior circulation).Existing inner circulation structure, in pull rod
Stress side center and side are drilled with slide valve control oilhole and pull rod are caused to be easy to happen fracture；When shifting formwork, it is necessary to by piston
Internal slide valve opens, this needs is introduced separately into pressure oil all the way, and causes design of Hydraulic System to tend to complicate, while causing to set
The complication of standby structure, therefore its structure is further improved.
Summary of the invention
The technical problem to be solved by the invention for the present situation of prior art is to provide simple and reasonable for structure, manufacture at
This is low, can simplify hydraulic circuit, and four cylinder of one kind for improving pull rod intensity directly locks the inner circulation structure of injection moulding machine mode-locking oil cylinder.
The technical scheme of the invention to solve the technical problem is:
A kind of four cylinder directly locks the inner circulation structure of injection moulding machine mode-locking oil cylinder, includes solid plate and moving template, on moving template
It is connected with ejecting mechanism, pull rod is symmetrically arranged on moving template, moving template is stretched out in one end of pull rod, and passes through pull rod fixed mechanism
Fixed, the other end of pull rod runs through the solid plate；The center of the non-stress side of pull rod offers control oil duct, and rod outer sleeve is set
There is Mode-locking oil cylinder cylinder, is located in the Mode-locking oil cylinder cylinder on pull rod and is provided with piston, the right end of piston is fixed with cover board, piston
It is provided with slide valve between the outer wall of pull rod, spring is provided between slide valve and cover board, has been disposed radially inwardly flange on piston,
Oil-through hole is axially offered on piston, and fuel feed hole, the chamber on the left of fuel feed hole and Mode-locking oil cylinder cylinder inner piston are provided on solid plate
Body communicates；Mould shifting oil cylinder is connected on moving template.
The technical measures of optimization further include:
It is convexly equipped with annular rib in the middle part of above-mentioned pull rod, the left side of piston and the annular rib offset cooperation, on pull rod
Piston fixture nut is provided on the left of piston.
The left end periphery of above-mentioned slide valve is formed with chamfering, and when slide valve moves to left, chamfering is contacted with the bead wire of piston and formed
Sealing.
Sealing ring is provided between the outer wall of above-mentioned slide valve and the pull rod.
The left end of above-mentioned Mode-locking oil cylinder cylinder is connected with the solid plate, and the right end of Mode-locking oil cylinder cylinder is provided with end cap.
It is provided on above-mentioned end cap and unloads oilhole.
Seal assembly is provided between the outer wall of above-mentioned solid plate and the pull rod.
Above-mentioned ejecting mechanism includes bracket, and bracket is provided centrally with ejection cylinder, is connected on the ejection cylinder
Knock-pin.
Above-mentioned mould shifting oil cylinder is made of cylinder body and extension bar, and cylinder body is mutually fixed with the solid plate, extension bar with it is described
Moving template is connected.
The right end of above-mentioned cover board and piston is mutually fixed by screw.
Four cylinders of one kind of the invention directly lock the inner circulation structure of injection moulding machine mode-locking oil cylinder, simple and reasonable for structure, manufacturing cost
It is low, control oil duct is opened up by the non-stress side in pull rod, pull rod intensity can be effectively improved, to improve the use longevity of equipment
Life reduces maintenance cost；In addition, this inner circulation structure is not necessarily to open slide valve in shifting formwork, high pressure oil all the way is eliminated, and in height
When pressing mode locking, fuel feed hole is identical as control oil duct mesohigh oil pressure, and same oil sources can be used, hydraulic so as to effectively simplify
The design of oil circuit.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention；
Fig. 2 is the schematic enlarged-scale view when portion A slide valve is closed to the left in Fig. 1；
Fig. 3 is the schematic enlarged-scale view when portion A slide valve is opened to the right in Fig. 1.
Specific embodiment
The present invention will be described in further detail below with reference to the embodiments of the drawings.
It is as shown in Figure 1 to Figure 3 structural schematic diagram of the invention,
Appended drawing reference therein are as follows: mold 1, solid plate 11, fuel feed hole 11a, moving template 12, pull rod 2, control oil duct 2a,
Pull rod fixed mechanism 21, annular rib 22, piston fixture nut 23, Mode-locking oil cylinder cylinder 3, end cap 31, unload oilhole 31a, piston 4,
Oil-through hole 4a, cover board 41, flange 42, screw 43, slide valve 5, chamfering 5a, spring 51, sealing ring 52, mould shifting oil cylinder 6, cylinder body 61,
Extension bar 62, ejecting mechanism 7, bracket 71, ejection cylinder 72, knock-pin 73, seal assembly 8.
As shown in Figure 1 to Figure 3,
A kind of four cylinder directly locks the inner circulation structure of injection moulding machine mode-locking oil cylinder, includes solid plate 11 and moving template 12, dynamic model
It is connected with ejecting mechanism 7 on plate 12, pull rod 2 is symmetrically arranged on moving template 12, moving template 12 is stretched out in one end of pull rod 2, and leads to
It crosses pull rod fixed mechanism 21 to fix, the other end of pull rod 2 runs through the solid plate 11；The center of the non-stress side of pull rod 2 opens up
There is control oil duct 2a, Mode-locking oil cylinder cylinder 3 is arranged with outside pull rod 2, is located in the Mode-locking oil cylinder cylinder 3 on pull rod 2 and is provided with piston
4, the right end of piston 4 is fixed with cover board 41, is provided with slide valve 5 between piston 4 and the outer wall of pull rod 2, slide valve 5 and cover board 41 it
Between be provided with spring 51, flange 42 has been disposed radially inwardly on piston 4, oil-through hole 4a, solid plate 11 are axially offered on piston 4
On be provided with fuel feed hole 11a, fuel feed hole 11a is communicated with the cavity in 3 inner piston of Mode-locking oil cylinder cylinder, 4 left side；It is connected on moving template 12
There is mould shifting oil cylinder 6.
In embodiment, the middle part of pull rod 2 is convexly equipped with annular rib 22, and the left side of piston 4 offsets with the annular rib 22 matches
It closes, is located on the left of piston 4 on pull rod 2 and is provided with piston fixture nut 23.
In embodiment, the left end periphery of slide valve 5 is formed with chamfering 5a, when slide valve 5 moves to left, the flange 42 of chamfering 5a and piston 4
Line contacts and forms sealing.The seal form contacted using line, can guarantee the reliability sealed between slide valve 5 and piston 4.
In embodiment, sealing ring 52 is provided between slide valve 5 and the outer wall of the pull rod 2.
In embodiment, the left end of Mode-locking oil cylinder cylinder 3 is connected with the solid plate 11, the right end setting of Mode-locking oil cylinder cylinder 3
There is end cap 31.
In embodiment, it is provided on end cap 31 and unloads oilhole 31a.Unload oilhole 31a effect be will be extra in Mode-locking oil cylinder cylinder 3
Hydraulic oil exclude.
In embodiment, seal assembly 8 is provided between solid plate 11 and the outer wall of the pull rod 2.
In embodiment, ejecting mechanism 7 includes bracket 71, and bracket 71 is provided centrally with ejection cylinder 72, ejection oil
Knock-pin 73 is connected on cylinder 72.
In embodiment, mould shifting oil cylinder 6 is made of cylinder body 61 and extension bar 62, and cylinder body 61 is fixed with 11 phase of solid plate,
Extension bar 62 is connected with the moving template 12.
In embodiment, cover board 41 and the right end of piston 4 are fixed by 43 phase of screw.
Working principle:
Mold 1 is set between solid plate 11 and moving template 12, when high-voltage lock mould, is controlled in oil duct 2a and is passed through high pressure oil,
High pressure oil pushes away slide valve 5 to the left, until the chamfering 5a of 5 left end of slide valve offsets with the flange 42 of piston 4 and forms sealing, such as Fig. 2
It is shown, at this moment, separated by slide valve 5 without phase between the cavity on 4 right side of cavity and piston in 3 inner piston of Mode-locking oil cylinder cylinder, 4 left side
It is logical.Meanwhile the fuel feed hole 11a on solid plate 11 is also passed into high pressure oil, and piston 4 is pushed away to the right, since piston 4 is fixed on pull rod 2
Overall structure above and with pull rod 2 is formed, while piston 4 is pushed away to the right, pull rod 2 moves to right therewith, to drive moving template 12
It moves to right and clamps mold 1, to realize that high-voltage lock mould acts.
High pressure oil that fuel feed hole 11a is passed through and high pressure oil is passed through in control oil duct 2a is uniform pressure, therefore the two can be with
Using same oil sources, the design of hydraulic oil duct can be simplified.And control the non-stress side that oil duct 2a is opened in pull rod 2, and by
Power side (side for being connected with moving template 12) then non-aperture, therefore in the unstressed concentration in stress side, such structure can be mentioned effectively
The intensity of high pull rod 2 reduces maintenance cost to improve the service life of equipment.
When controlling in oil duct 2a without high pressure oil, the high pressure oil being passed through from the fuel feed hole 11a on solid plate 11 makes 5 grams of slide valve
The elastic force for taking spring 51 moves to right, and the flange 42 of slide valve 5 and piston 4 is detached from, as described in Figure 3, at this moment 3 inner piston 4 of Mode-locking oil cylinder cylinder
It is connected between the cavity on 4 right side of cavity and piston in left side, thus circulation in realizing.And moving template 12 is then in mould shifting oil cylinder 6
Under effect, realization is moved left and right, mobile drive pull rod 2,4 synchronizing moving of piston of moving template 12.
Highly preferred embodiment of the present invention has illustrated, and the various change or remodeling made by those of ordinary skill in the art are not
It can depart from the scope of the present invention.
Claims (10)
- It include solid plate (11) and moving template (12), institute 1. a kind of four cylinders directly lock the inner circulation structure of injection moulding machine mode-locking oil cylinder Ejecting mechanism (7) are connected on the moving template (12) stated, it is characterized in that: being symmetrically arranged with pull rod on the moving template (12) (2), moving template (12) are stretched out in one end of the pull rod (2), and pull rod fixed by pull rod fixed mechanism (21), described (2) the other end runs through the solid plate (11)；The center of the non-stress side of the pull rod (2) offers control oil duct (2a), the pull rod (2) are arranged with Mode-locking oil cylinder cylinder (3) outside, and the Mode-locking oil cylinder cylinder (3) is located on the pull rod (2) It is inside provided with piston (4), the right end of piston (4) is fixed with cover board (41), between the piston (4) and the outer wall of pull rod (2) It is provided with slide valve (5), is provided between slide valve (5) and cover board (41) spring (51), the piston is disposed radially inwardly on (4) Have flange (42), axially offered on the piston (4) oil-through hole (4a), the solid plate is provided with fuel feed hole on (11) (11a), the fuel feed hole (11a) are communicated with the cavity on the left of Mode-locking oil cylinder cylinder (3) inner piston (4)；The moving template (12) mould shifting oil cylinder (6) are connected on；The high pressure oil that fuel feed hole (11a) is passed through and the interior high pressure oil that is passed through of control oil duct (2a) are phase Same pressure, using same oil sources.
- 2. a kind of four cylinder according to claim 1 directly locks the inner circulation structure of injection moulding machine mode-locking oil cylinder, it is characterized in that: described Pull rod (2) in the middle part of be convexly equipped with annular rib (22), the left side of the piston (4) offsets with the annular rib (22) matches It closes, is located on the left of piston (4) on the pull rod (2) and is provided with piston fixture nut (23).
- 3. a kind of four cylinder according to claim 2 directly locks the inner circulation structure of injection moulding machine mode-locking oil cylinder, it is characterized in that: described The left end periphery of slide valve (5) be formed with chamfering (5a), when the slide valve (5) moves to left, the flange of chamfering (5a) and piston (4) (42) line contacts and forms sealing.
- 4. a kind of four cylinder according to claim 3 directly locks the inner circulation structure of injection moulding machine mode-locking oil cylinder, it is characterized in that: described Slide valve (5) and the pull rod (2) outer wall between be provided with sealing ring (52).
- 5. a kind of four cylinder according to claim 4 directly locks the inner circulation structure of injection moulding machine mode-locking oil cylinder, it is characterized in that: described The left end of Mode-locking oil cylinder cylinder (3) be connected with the solid plate (11), the right end of the Mode-locking oil cylinder cylinder (3) is provided with end It covers (31).
- 6. a kind of four cylinder according to claim 5 directly locks the inner circulation structure of injection moulding machine mode-locking oil cylinder, it is characterized in that: described End cap (31) on be provided with and unload oilhole (31a).
- 7. a kind of four cylinder according to claim 6 directly locks the inner circulation structure of injection moulding machine mode-locking oil cylinder, it is characterized in that: described Solid plate (11) and the pull rod (2) outer wall between be provided with seal assembly (8).
- 8. a kind of four cylinder according to claim 7 directly locks the inner circulation structure of injection moulding machine mode-locking oil cylinder, it is characterized in that: described Ejecting mechanism (7) include bracket (71), the bracket (71) is provided centrally with ejection cylinder (72), the ejection cylinder (72) knock-pin (73) are connected on.
- 9. a kind of four cylinder according to claim 8 directly locks the inner circulation structure of injection moulding machine mode-locking oil cylinder, it is characterized in that: described Mould shifting oil cylinder (6) be made of cylinder body (61) and extension bar (62), the cylinder body (61) is mutually fixed with the solid plate (11), The extension bar (62) is connected with the moving template (12).
- 10. a kind of four cylinder according to claim 9 directly locks the inner circulation structure of injection moulding machine mode-locking oil cylinder, it is characterized in that: institute The right end of the cover board (41) stated and piston (4) is mutually fixed by screw (43).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710217474.5A CN106965393B (en) | 2017-04-05 | 2017-04-05 | A kind of four cylinder directly locks the inner circulation structure of injection moulding machine mode-locking oil cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710217474.5A CN106965393B (en) | 2017-04-05 | 2017-04-05 | A kind of four cylinder directly locks the inner circulation structure of injection moulding machine mode-locking oil cylinder |
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| Publication Number | Publication Date |
|---|---|
| CN106965393A CN106965393A (en) | 2017-07-21 |
| CN106965393B true CN106965393B (en) | 2019-02-22 |
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| CN201710217474.5A Active CN106965393B (en) | 2017-04-05 | 2017-04-05 | A kind of four cylinder directly locks the inner circulation structure of injection moulding machine mode-locking oil cylinder |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109397655B (en) * | 2017-08-17 | 2024-05-31 | 海天塑机集团有限公司 | Mould closing mechanism of two-plate injection molding machine |
| CN110253844A (en) * | 2019-06-10 | 2019-09-20 | 海天塑机集团有限公司 | A kind of easy-to-mount Mode-locking oil cylinder |
| CN113478747A (en) * | 2021-08-11 | 2021-10-08 | 浙江旭昌昇装备科技有限公司 | Two board-like injection molding machine pull rod bearing structure |
| CN114321086B (en) * | 2021-12-30 | 2022-08-09 | 广州晶品智能压塑科技股份有限公司 | Embedded oil cylinder structure |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0562181A1 (en) * | 1992-03-23 | 1993-09-29 | Krauss-Maffei Aktiengesellschaft | Clamping device for an injection moulding machine |
| CN2714866Y (en) * | 2004-08-23 | 2005-08-03 | 广东泓利机器有限公司 | Internal circulation clamping cylinder |
| CN202685242U (en) * | 2012-04-28 | 2013-01-23 | 黄步明 | Clamping mechanism |
| CN203726783U (en) * | 2014-01-21 | 2014-07-23 | 广东正茂精机有限公司 | Mould locking oil cylinder of injection molding machine |
| CN203765977U (en) * | 2014-04-01 | 2014-08-13 | 广东正茂精机有限公司 | Mold closing device of two-plate direct pressure injection molding machine |
-
2017
- 2017-04-05 CN CN201710217474.5A patent/CN106965393B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0562181A1 (en) * | 1992-03-23 | 1993-09-29 | Krauss-Maffei Aktiengesellschaft | Clamping device for an injection moulding machine |
| CN2714866Y (en) * | 2004-08-23 | 2005-08-03 | 广东泓利机器有限公司 | Internal circulation clamping cylinder |
| CN202685242U (en) * | 2012-04-28 | 2013-01-23 | 黄步明 | Clamping mechanism |
| CN203726783U (en) * | 2014-01-21 | 2014-07-23 | 广东正茂精机有限公司 | Mould locking oil cylinder of injection molding machine |
| CN203765977U (en) * | 2014-04-01 | 2014-08-13 | 广东正茂精机有限公司 | Mold closing device of two-plate direct pressure injection molding machine |
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| CN106965393A (en) | 2017-07-21 |
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