CN202895637U - Oil cylinder piston integral mechanism for injection molding machine locking die with two communicated cavities - Google Patents

Oil cylinder piston integral mechanism for injection molding machine locking die with two communicated cavities Download PDF

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Publication number
CN202895637U
CN202895637U CN 201220635464 CN201220635464U CN202895637U CN 202895637 U CN202895637 U CN 202895637U CN 201220635464 CN201220635464 CN 201220635464 CN 201220635464 U CN201220635464 U CN 201220635464U CN 202895637 U CN202895637 U CN 202895637U
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China
Prior art keywords
cylinder
oil
piston
locking
oil cylinder
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CN 201220635464
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Chinese (zh)
Inventor
姜洪
马海舟
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SUNBONNY GROUP CO Ltd
Xuzhou Shengbang Machinery Co Ltd
Zhejiang Sunbun Technology Co Ltd
Original Assignee
SUNBONNY GROUP CO Ltd
Xuzhou Shengbang Machinery Co Ltd
Zhejiang Sunbun Technology Co Ltd
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Priority to CN 201220635464 priority Critical patent/CN202895637U/en
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Abstract

The utility model discloses an oil cylinder piston integral mechanism for an injection molding machine locking die with two communicated cavities. The problems of multiple parts, complex structure and high difficulty in machining and assembly of an existing injection molding machine locking die mechanism are mainly solved. The oil cylinder piston integral mechanism is characterized in that a main oil passage (11), a central hole (12) and a side oil passage (13) are formed in a piston (6); a valve base (14) is fixedly arranged on the main oil passage (11); a valve core (15) is glidingly arranged in the central hole (12) and is hermetically matched with the valve base (14); a spring (16) is arranged between the valve core (15) and a pulling rod (7); the valve core (15) is in a normally closed state; when the valve core (15) is opened, the main oil passage (11) can be communicated with the side oil passage (13); and a sealing ring (17) is arranged between an oil tank body (4) and a moveable template (2). The oil cylinder piston integral mechanism is simple in structure, reliable in sealing, decreased in parts and easy to machine and assemble, the requirement on production machining process is met, the service life is effectively ensured, and the production cost and the maintenance cost are reduced.

Description

Injection moulding machine mode-locking is with two chamber intercommunication oil cylinder piston integrated models
Technical field
The utility model relates to a kind of clamping device of injection moulding machine, is specifically related to a kind of injection moulding machine mode-locking with two chamber intercommunication oil cylinder piston integrated models.
Background technology
Existing two plate vertical compression injection machines are provided with 4 groups of Mode-locking oil cylinders, and the rod chamber of Mode-locking oil cylinder and the fluid in the rodless cavity interpenetrate, and are divided into following two kinds of structures: a kind of is that break-make by the outside oil duct of cylinder body and hydraulic valve realizes oil return and oil-feed; Another kind is to make the hydraulic oil in two chambeies carry out intercommunication by the valve that arranges on the in-oil cylinder piston body, and this valve is controlled by external pressure.The first control mode external structure is complicated, bulky, cost is high, energy consumption is large, inhaling empty problem in order to solve, generally is to add one with the equirotal overhanging piston rod of pull bar, this complex structure in rodless cavity, the very long difficult installation of easy to leak oil and piston rod affects complete machine length.The second is take Chinese patent CN201020576769.5 and Chinese patent CN200910213625.5 as representative, and the shortcoming of existence is as follows: 1. part is many, and complex structure, process and assemble difficulty are large; 2. when keeping in repair piston, the dismounting piston is pretty troublesome; 3. spring and spring base get loose in motion process easily, the maintenance trouble; 4. produce negative pressure for fear of rodless cavity, adopt division board, be prone in use the stuck and fluid seepage of division board, also aggravated the wearing and tearing to cylinder body simultaneously.
The utility model content
In order to overcome the deficiency of background technology, the utility model provides a kind of injection moulding machine mode-locking with two chamber intercommunication oil cylinder piston integrated models, this mechanism structure is simple, sealing is reliable, parts have been reduced, process and assemble is easy, meet the production and processing technology requirement, effectively guarantee the service life of machine, reduced production cost and maintenance cost.
The technical solution of the utility model is: a kind of injection moulding machine mode-locking comprises solid plate with two chamber intercommunication oil cylinder piston integrated models, moving platen, mould shifting oil cylinder and Mode-locking oil cylinder, Mode-locking oil cylinder is mainly by cylinder body, cylinder cap, piston and pull bar form, cylinder body and moving platen fix, one end of pull bar links to each other with piston, the other end of pull bar passes moving platen and solid plate fixes, pull bar is provided with the oily passage of control, be respectively equipped with the first oil inlet and oil return passage and the second oil inlet and oil return passage on moving platen and the cylinder cap, piston is provided with main oil gallery, centre bore and side oil duct, be fixed with valve seat on the main oil gallery, spool is slidingly installed in the centre bore, spool cooperates with valve base sealing, be provided with spring between spool and the pull bar, spool is in normally off, and spool is opened main oil gallery is communicated with the side oil duct; Be provided with sealing ring between cylinder body and the moving platen.
Described cylinder cap is socketed in outside the cylinder body and is threaded, and the length of cylinder cap is not less than the length of piston and cylinder body mating surface.
Described the second oil inlet and oil return passage is communicated with the little cylinder bucket of vertically arranged repairing by hydraulic tube.
Be provided with active clapboard in the little cylinder bucket of described repairing, the top of active clapboard communicates with atmosphere.
The utlity model has following beneficial effect: owing to take such scheme, simplified the valve module structure in the piston, the spring difficult drop-off, simple in structure, sealing is reliable, reduced parts, process and assemble is easy, meets the production and processing technology requirement, effectively guarantee the service life of machine, reduced production cost and maintenance cost.
Description of drawings
Accompanying drawing 1 is structure cutaway view of the present utility model.
1-solid plate among the figure, 2-moving platen, 3-mould shifting oil cylinder, 4-cylinder body, the 5-cylinder cap, 6-piston, 7-pull bar, 8-controls oily passage, 9-the first oil inlet and oil return passage, 10-the second oil inlet and oil return passage, the 11-main oil gallery, 12-centre bore, 13-side oil duct, the 14-valve seat, 15-spool, 16-spring, the 17-sealing ring, the little cylinder bucket of 18-repairing, 19-active clapboard.
The specific embodiment
The utility model is described in further detail below in conjunction with accompanying drawing:
By shown in Figure 1, a kind of injection moulding machine mode-locking comprises solid plate 1 with two chamber intercommunication oil cylinder piston integrated models, moving platen 2, mould shifting oil cylinder 3 and Mode-locking oil cylinder, Mode-locking oil cylinder is mainly by cylinder body 4, cylinder cap 5, piston 6 and pull bar 7 form, cylinder body 4 fixes with moving platen 2, one end of pull bar 7 links to each other with piston 6, the other end of pull bar 7 passes moving platen 2 and fixes with solid plate 1, pull bar 7 is provided with the oily passage 8 of control, be respectively equipped with the first oil inlet and oil return passage 9 and the second oil inlet and oil return path 10 on moving platen 2 and the cylinder cap 5, piston 6 is provided with main oil gallery 11, centre bore 12 and side oil duct 13, be fixed with valve seat 14 on the main oil gallery 11, spool 15 is slidingly installed in the centre bore 12, spool 15 is sealed and matched with valve seat 14, be provided with spring 16 between spool 15 and the pull bar 7, spool 15 is in normally off, and spool 15 is opened main oil gallery 11 is communicated with side oil duct 13; Be provided with sealing ring 17 between cylinder body 4 and the moving platen 2.Owing to take such scheme, simplified the valve module structure in the piston 6, spring 16 difficult drop-offs, simple in structure, sealing is reliable, has reduced parts, process and assemble is easy, meet the production and processing technology requirement, effectively guarantee the service life of machine, reduced production cost and maintenance cost.
Described cylinder cap 5 is socketed in outside the cylinder body 4 and is threaded, and the length of cylinder cap 5 is not less than the length of piston 6 and cylinder body 4 mating surfaces.During maintenance piston 6, dismounting piston 6 is very simple, only needs piston 6 is moved in the lengthening cylinder cap 5, removes and lengthens cylinder cap 5, exposes piston 6.
Described the second oil inlet and oil return path 10 is communicated with the little cylinder bucket 18 of vertically arranged repairing by hydraulic tube.Effectively avoided fluid in the rod chamber of Mode-locking oil cylinder when die sinking to reflux not enough and make and produce vacuum (negative pressure) in the rodless cavity, increased the little cylinder bucket 18 of repairing and guaranteed the stationarity of machine in the shifting formwork process.
Be provided with active clapboard 19 in the little cylinder bucket 18 of described repairing, the top of active clapboard 19 communicates with atmosphere.Active clapboard 19 in the background technology is changed in the little cylinder bucket 18 of repairing, and adopted vertically arranged mode, avoid its stuck and fluid internal leak in moving process, avoid simultaneously the wearing and tearing of 19 pairs of cylinder bodies 4 of active clapboard.
The course of work of the present utility model is as follows:
During matched moulds, mould shifting oil cylinder 3 pulling moving platens 2 drive cylinder body 4 and move right together, the pressure of rodless cavity is greater than the pressure of rod chamber at this moment, fluid in the rodless cavity partly flows back to fuel tank and another part is pushed spool 15 open and entered rod chamber, realize that moving platen 2 drives pull bar 7 and draws close to solid plate 1 fast, when mould was closed, mould shifting oil cylinder 3 quit work.Then, control oil enters the oily passage 8 of control so that spool 15 compresses with valve seat 14, thereby cuts off main oil gallery 11 and side oil duct 13.After hydraulic oil entered rod chamber from the first oil inlet and oil return passage 9, hydraulic coupling acted on the moving platen 2 by cylinder body 4, pushes down mould and carries out high-voltage lock mould.
During die sinking, by controlling oily passage 8 and 9 pressure releases of the first oil inlet and oil return passage, mould shifting oil cylinder 3 promotes moving platens 2 and cylinder body 4 is moved to the left together, and the fluid in the rod chamber is compressed and act on spool 15 is opened, rod chamber and rodless cavity communicate, and realize quick die sinking.

Claims (4)

1. an injection moulding machine mode-locking is with two chamber intercommunication oil cylinder piston integrated models, comprise solid plate (1), moving platen (2), mould shifting oil cylinder (3) and Mode-locking oil cylinder, Mode-locking oil cylinder is mainly by cylinder body (4), cylinder cap (5), piston (6) and pull bar (7) form, cylinder body (4) fixes with moving platen (2), one end of pull bar (7) links to each other with piston (6), the other end of pull bar (7) passes moving platen (2) and fixes with solid plate (1), pull bar (7) is provided with control oily passage (8), be respectively equipped with the first oil inlet and oil return passage (9) and the second oil inlet and oil return passage (10) on moving platen (2) and the cylinder cap (5), it is characterized in that: piston (6) is provided with main oil gallery (11), centre bore (12) and side oil duct (13), be fixed with valve seat (14) on the main oil gallery (11), spool (15) is slidingly installed in the centre bore (12), spool (15) is sealed and matched with valve seat (14), be provided with spring (16) between spool (15) and the pull bar (7), spool (15) is in normally off, and spool (15) is opened main oil gallery (11) is communicated with side oil duct (13); Be provided with sealing ring (17) between cylinder body (4) and the moving platen (2).
2. injection moulding machine mode-locking according to claim 1 is with two chamber intercommunication oil cylinder piston integrated models, it is characterized in that: described cylinder cap (5) is socketed in outside the cylinder body (4) and is threaded, and the length of cylinder cap (5) is not less than the length of piston (6) and cylinder body (4) mating surface.
3. injection moulding machine mode-locking according to claim 1 and 2 is with two chamber intercommunication oil cylinder piston integrated models, and it is characterized in that: the second oil inlet and oil return passage (10) is communicated with the little cylinder bucket of vertically arranged repairing (18) by hydraulic tube.
4. injection moulding machine mode-locking according to claim 3 is with two chamber intercommunication oil cylinder piston integrated models, and it is characterized in that: be provided with active clapboard (19) in the little cylinder bucket of repairing (18), the top of active clapboard (19) communicates with atmosphere.
CN 201220635464 2012-11-26 2012-11-26 Oil cylinder piston integral mechanism for injection molding machine locking die with two communicated cavities Active CN202895637U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220635464 CN202895637U (en) 2012-11-26 2012-11-26 Oil cylinder piston integral mechanism for injection molding machine locking die with two communicated cavities

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220635464 CN202895637U (en) 2012-11-26 2012-11-26 Oil cylinder piston integral mechanism for injection molding machine locking die with two communicated cavities

Publications (1)

Publication Number Publication Date
CN202895637U true CN202895637U (en) 2013-04-24

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
CN111016065A (en) * 2019-12-19 2020-04-17 王德忠 Plastic injection molding device and injection molding method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
CN111016065A (en) * 2019-12-19 2020-04-17 王德忠 Plastic injection molding device and injection molding method
CN111016065B (en) * 2019-12-19 2021-07-13 南通德杰新材料科技有限公司 Plastic injection molding device and injection molding method

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