CN103770296B - Internal recycling clamping mechanism of injection molding machine - Google Patents
Internal recycling clamping mechanism of injection molding machine Download PDFInfo
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- CN103770296B CN103770296B CN201410027891.XA CN201410027891A CN103770296B CN 103770296 B CN103770296 B CN 103770296B CN 201410027891 A CN201410027891 A CN 201410027891A CN 103770296 B CN103770296 B CN 103770296B
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- oil
- piston
- containing cavity
- oil pocket
- piston rod
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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
The invention discloses an internal recycling clamping mechanism of an injection molding machine. The internal recycling clamping mechanism comprises a die moving cylinder, a fixed die plate, a movable die plate and a rear die plate, wherein the die moving cylinder comprises a rear housing, a die moving piston rod and a first piston, the rear housing is fixed on the rear die plate, a first containing cavity is arranged in the rear die plate, a die locking piston rod is arranged in the first containing cavity; one end of the die moving piston rod is fixed on the rear housing; the first piston is arranged on the other end of the die moving piston rod; one end of the die locking piston rod is provided with a second containing cavity; the first piston is arranged in the second containing cavity; the second containing cavity comprises a first oil chamber and a second oil chamber which are arranged on two sides of the first piston, respectively; one side of the first oil chamber is communicated with a first oil transfer channel; one side of the second oil chamber is communicated with a second oil transfer channel; a high pressure oil port is arranged on the rear housing and is arranged on the side of the movable die plate. The internal recycling clamping mechanism of the injection molding machine disclosed by the invention has the characteristics of convenience in installation, low production cost, low energy consumption, stable die locking property and compact structure, and by which, the purpose of opening and clamping die rapidly is realized.
Description
Technical field
The invention belongs to a kind of building block of injection machine, especially relate to a kind of injection machine interior circulation clamping.
Background technology
Injection machine, in forming process, needs to carry out the processes such as shifting formwork and locked mode.In existing injection machine, using mould moving cylinder
Realize the shifting formwork process of moving platen, mould moving cylinder is arranged on the movement realizing moving platen on rear pattern plate, in order to ensure mould moving cylinder effect
The equilibrium of the active force on moving platen, needs the symmetric position in rear pattern plate to install corresponding mould moving cylinder.And during shifting formwork action,
The locked mode oil pocket of mode locking cylinder requires supplementation with or discharges substantial amounts of oil, leads to speed of moving mold slow, energy consumption is big, pressure rising time during locked mode
Long.
Content of the invention
It is an object of the invention to provide a kind of structure is simple, easy for installation, achievable rapid mould-moving, and during high-voltage lock mould
Boosting is fast, and energy consumption is low, the injection machine interior circulation clamping of low production cost.
According to an aspect of the invention, it is provided a kind of injection machine interior circulation clamping, including mould moving cylinder, cover half
Plate, moving platen and rear pattern plate, mould moving cylinder includes back casing, shifting formwork piston rod and first piston, and back casing is fixed on rear pattern plate,
It is provided with the first containing cavity, the first accommodating intracavity is provided with locking piston bar, and one end of shifting formwork piston rod is fixed on back cover in rear pattern plate
On body, first piston is provided with the second containing cavity, first piston position located at the other end of shifting formwork piston rod, one end of locking piston bar
In the second accommodating intracavity, the second containing cavity includes being located at the first oil pocket and second oil pocket of first piston both sides respectively, the first oil
Chamber side connects the first oil transportation channel, and the second oil pocket side connects the second oil transportation channel.
The invention has the beneficial effects as follows：Because first piston is located at the second accommodating intracavity, and back casing is fixed on rear pattern plate
On, shifting formwork piston rod is fixed on back casing, thus, when by the first oil transportation channel to the first oil pocket in be passed through hydraulic oil when,
In the presence of oil pressure, the volume of the first oil pocket is gradually increased, and the volume of the second oil pocket is gradually reduced, and that is, locking piston bar is relative
Move to the first oil pocket side in first piston, that is, mold；When by the second oil transportation channel to the second oil pocket in be passed through liquid
During force feed, in the presence of oil pressure, the volume of the second oil pocket is gradually increased, and the volume of the first oil pocket is gradually reduced, i.e. locking piston
Bar moves to the second oil pocket side with respect to first piston, i.e. matched moulds.Hereby it is achieved that the shifting to moving platen for the mould moving cylinder
Dynamic；The movement of moving platen because mould moving cylinder is by acting on locking piston bar, is driven by locking piston bar, thus it is guaranteed that
The uniformity of moving platen stress.Hereby it is achieved that using the purpose of the mobile moving platen of a mould moving cylinder, reducing injection machine
Cost, so that the structure of injection machine is simple, reduces installation difficulty.
In some embodiments, back casing is located at side, the centrage of shifting formwork piston rod and the locking piston of rear pattern plate
The centrage of bar is located along the same line.Thereby it is ensured that can be acted on dynamic in a balanced way by the active force of locking piston bar
In template, realize shifting formwork.
In some embodiments, end cap can be provided with the opening of the second containing cavity, end cap is opened with the second containing cavity
Mouth matches.It is provided with end cap, the oil that effectively prevent the second accommodating intracavity enters in back cover body.
In some embodiments, in end cap, the second oil transportation channel is in shifting formwork piston rod for the first oil transportation channel.
Thus, conveniently each lead into pressure oil in the first oil pocket and the second oil pocket, efficiently control the relative shifting of locking piston bar
Dynamic, facilitate the control of shifting formwork.
In some embodiments, locking piston bar can run through rear pattern plate, and locking piston bar is provided with the second containing cavity
One end is located in back cover body, and the other end is connected with moving platen.Thus, locking piston bar runs through rear pattern plate, is conducive to locked mode to live
The movement of stopper rod.
In some embodiments, the first accommodating intracavity can be provided with second piston, and second piston is set in locking piston
Outside bar, match with the first containing cavity, second piston be respectively provided on two sides with the 3rd oil pocket and the 4th oil pocket, the 3rd oil pocket and
4th oil pocket is connected, and the tail end of the 3rd oil pocket offers high pressure hydraulic fluid port, and high pressure hydraulic fluid port is connected with the 3rd oil pocket.Thus, if
Have the 3rd oil pocket being interconnected and the 4th oil pocket so that locking piston bar to different directions mobile when, the oil in two oil pockets
Can mutually flow it is ensured that the normal movement of locking piston bar.It is provided with high pressure hydraulic fluid port, can be after matched moulds, to the 3rd oil pocket
Inside be passed through hydraulic oil so that hydraulic oil acts in second piston, so promote locking piston bar realize high-voltage lock mould it is ensured that
Clamp force needed for product injection mo(u)lding.
In some embodiments, second piston can be provided with the first side oil duct being interconnected and the second side oil duct,
3rd oil pocket and the 4th oil pocket are connected by the first side oil duct and the second side oil duct.It is provided with the first side oil duct and the second side oil
Road, can increase the circulation area of oil in two oil pockets it is ensured that the quick movement of locking piston bar.
In some embodiments, valve element, valve element and the first side oil can be provided between second piston and locking piston bar
Road is correspondingly arranged.Valve element is correspondingly arranged with the first side oil duct, it is thus possible to by control valve element match with the first side oil duct or
Separate, realize the disconnection connection of oil in the 3rd oil pocket and the 4th oil pocket or connect, and then, realize locking piston bar movement or
Mode-lock status.
In some embodiments, valve element can include valve port, is provided with the 3rd oil transportation channel and the 4th in locking piston bar
Oil transportation channel, the 3rd oil transportation channel is connected with the side of valve port, and the 4th oil transportation channel is connected with the opposite side of valve port.By
This, can be by input hydraulic pressure oil in the 3rd oil transportation channel or the 4th oil transportation channel, controlling the moving direction of valve element, thus controlling
Make the connected state of the 3rd oil pocket and the 4th oil pocket, control easy, reliable.
Brief description
Fig. 1 is a kind of structural representation of embodiment of injection machine interior circulation clamping of the present invention；
Fig. 2 is the partial enlarged drawing of part A in Fig. 1；
Fig. 3 is the partial enlarged drawing of part B in Fig. 1.
Specific embodiment
The present invention is further detailed explanation below in conjunction with the accompanying drawings.
Embodiment 1
With reference to Fig. 1, Fig. 2 and Fig. 3.The injection machine interior circulation clamping of the present invention, including mould moving cylinder 1, solid plate 50, moves
Template 10 and rear pattern plate 2, solid plate 50, moving platen 10 are connected by guide rod 70 with rear pattern plate 2, and mould moving cylinder 1 includes back casing
11st, shifting formwork piston rod 12 and first piston 13, back casing 11 is bolted on the side of rear pattern plate 2, is provided with rear pattern plate 2
First containing cavity 3, is provided with locking piston bar 4 in the first containing cavity 3.One end of shifting formwork piston rod 12 is fixed on back casing 11,
Shifting formwork piston rod 12 and the fixation of back casing 11, are threaded in shifting formwork piston rod 12 one end, and stretch out back cover for convenience
Body 11 is fastened by matched nut.First piston 13 is located at the other end of shifting formwork piston rod 12, first piston 13
It is formed in one structure with shifting formwork piston rod 12.
One end of locking piston bar 4 is provided with the second containing cavity 41, and first piston 13 is located in the second containing cavity 41, the second appearance
Put chamber 41 to include being located at the first oil pocket 5 and second oil pocket 6 of first piston 13 both sides respectively, the first oil pocket 5 side connection first
Oil transportation channel 7, the second oil pocket 6 side connects the second oil transportation channel 8.
The centrage of shifting formwork piston rod 12 is located along the same line with the centrage of locking piston bar 4.
It is provided with end cap 42, end cap 42 is fastenedly connected at the opening of the second containing cavity 41 at the opening of the second containing cavity 41,
Prevent the fluid in the second containing cavity 41 from flowing out, end cap 42 is matched with the opening of the second containing cavity 41.Second oil transportation channel 8 sets
In shifting formwork piston rod 12, the first oil transportation channel 7 is in end cap 42.
Locking piston bar 4 runs through rear pattern plate 2, and one end that locking piston bar 4 is provided with the second containing cavity 41 is located at back casing 11
Interior, the other end is connected with moving platen 10.
It is provided with second piston 9, second piston 9 is set in outside locking piston bar 4 in first containing cavity 3, accommodating with first
Match in chamber 3, second piston 9 be respectively provided on two sides with the 3rd oil pocket 20 and the 4th oil pocket 30, the 3rd oil pocket 20 and the 4th oil pocket
30 are connected, the tail end of the 3rd oil pocket 20（I.e. back casing 11 place side）Offer high pressure hydraulic fluid port 60, high pressure hydraulic fluid port 60 and the 3rd
Oil pocket 20 is connected.
Second piston 9 is provided with the first side oil duct 91 being interconnected and the second side oil duct 92, the 3rd oil pocket 20 and the 4th
Oil pocket 30 is connected with the second side oil duct 92 by the first side oil duct 91, in order to increase the logical of the 3rd oil pocket 20 and the 4th oil pocket 30
Pasta amasss, and is provided with multiple first side oil ducts 91 and the second side oil duct 92 in second piston 9.
It is provided with valve element 40, locking piston bar 4 fixation is set in second piston 9 between second piston 9 and locking piston bar 4
Interior, by the movement of the mobile drive locking piston bar 4 of second piston 9, valve element 40 is set in the outside of locking piston bar 4, valve
The outer wall of core 40 is matched with the inwall of second piston 9, and valve element 40 is correspondingly arranged with the first side oil duct 91, and that is, valve element 40 is to first
When side oil duct 91 direction is mobile, valve element 40 can be matched with the first side oil duct 91 so that the first side oil duct 91 cut-off the 3rd is oily
Chamber 20 and the connection of the 4th oil pocket 30；Valve element 40 to away from the first side oil duct 91 direction mobile when, valve element 40 and the first side oil duct
91 separate so that the 3rd oil pocket 20 is connected with the 4th oil pocket 30.
Valve element 40 includes valve port 401, is provided with the 3rd oil transportation channel 43 and the 4th oil transportation channel 44 in locking piston bar 4, the
Three oil transportation channels 43 are connected with the side of valve port 401, and the 4th oil transportation channel 44 is connected with the opposite side of valve port 401.
The injection machine interior circulation clamping of the present invention when being molded, by the first oil transportation channel 7 in end cap 42
The input pressure oil into the first oil pocket 5, the oil in the first oil pocket 5 gradually increases, the appearance of the first oil pocket 5 in the presence of pressure oil
Amass and be gradually increased, that is, drive locking piston bar 4 gradually to move to the direction of the first oil pocket 5 side, thus, locking piston bar
4 drive moving platen 10 to move to the direction away from solid plate 50, realize die sinking.Meanwhile, in order to second piston 9 can be in the first appearance
Put in chamber 3 and move, the 3rd oil pocket 20 need to keep connecting with the 4th oil pocket 30, therefore, by inputting into the 3rd oil transportation channel 43
Pressure oil, promotes valve element 40 to move to the direction away from the first side oil duct 91 from the opposite side of valve port 401 by the effect of oil pressure.
Thus, after opening valve element 40, the oil in the 3rd oil pocket 20 passes through the first side oil duct 91 and the second side oil duct 92 enters the 4th oil pocket
30, realize die sinking.During shifting formwork, the 3rd oil transportation channel 43 is passed through pressure oil, and valve element 40 is opened, the 3rd oil pocket 20 and the 4th oil pocket 30
Connection.
The injection machine interior circulation clamping of the present invention when carrying out matched moulds, by the second oil transportation in shifting formwork piston rod 12
Passage 8 gradually increases to input pressure oil in the second oil pocket 6, the oil in the second oil pocket 6, the second oil pocket in the presence of pressure oil
6 volume is gradually increased, that is, drive locking piston bar 4 to move to the direction of the second oil pocket 6 side, locking piston bar 4 carries
Dynamic moving platen 10 moves to solid plate 50 direction, realizes matched moulds.Meanwhile, when second piston 9 is mobile, keep to the 3rd oil transportation channel
Input pressure oil in 43, keeps the first side oil duct 91 to separate so that in the 3rd oil pocket 20 and the 4th oil pocket 30 with valve element 40
Oil phase is intercommunicated.
The injection machine interior circulation clamping of the present invention when carrying out locked mode, when locking piston bar 4 will be mobile for moving platen 10
To after match with solid plate 50, carry out locked mode；The input pressure oil into the 4th oil transportation channel 44, pressure oil acts on valve port
401 side, promote in the presence of oil pressure direction from valve element 40 to the first side oil duct 91 mobile so that valve element 40 and the first side
Oil duct 9 matches, and valve element 40 is closed, thus so that the 3rd oil pocket 20 is connected with the 4th oil pocket 30 disconnection, that is, in the 3rd oil pocket 20
Oil cannot flow with the oil of the 4th oil pocket 30.Now, hydraulic oil is passed through to the 3rd oil pocket 20 by high pressure hydraulic fluid port 60, in height
In the presence of force feed, drive second piston 9 to produce one to matched moulds direction and the mould between solid plate 50 and moving platen 10 is entered
One step closes tight power, i.e. clamp force.
Above-described is only the preferred embodiment of the present invention it is noted that for those of ordinary skill in the art
For, without departing from the concept of the premise of the invention, some deformation can also be made and improve, these broadly fall into the present invention
Protection domain.
Claims (5)
1. injection machine interior circulation clamping, wherein, including mould moving cylinder (1), solid plate (50), moving platen (10) and rear pattern plate
(2), described mould moving cylinder (1) includes back casing (11), shifting formwork piston rod (12) and first piston (13), and described back casing (11) is solid
It is scheduled on rear pattern plate (2), be provided with the first containing cavity (3) in described rear pattern plate (2), in described first containing cavity (3), be provided with locked mode
Piston rod (4), one end of described shifting formwork piston rod (12) is fixed on back casing (11), and described first piston (13) is located at shifting formwork
The other end of piston rod (12), one end of described locking piston bar (4) is provided with the second containing cavity (41), described first piston (13)
In the second containing cavity (41), described second containing cavity (41) includes being located at the first oil pocket of first piston (13) both sides respectively
(5) and the second oil pocket (6), described first oil pocket (5) side connects the first oil transportation channel (7), and described second oil pocket (6) side is even
Logical second oil transportation channel (8), is provided with second piston (9), described second piston (9) is set in lock in described first containing cavity (3)
Outside mould piston rod (4), match with the first containing cavity (3), described second piston (9) be respectively provided on two sides with the 3rd oil pocket
(20) and the 4th oil pocket (30), described 3rd oil pocket (20) is connected with the 4th oil pocket (30), the tail of described 3rd oil pocket (20)
End offers high pressure hydraulic fluid port (60), and described high pressure hydraulic fluid port (60) is connected with the 3rd oil pocket (20), and described second piston (9) sets
The first side oil duct (91) being interconnected and the second side oil duct (92), described 3rd oil pocket (20) and the 4th oil pocket (30) is had to pass through
First side oil duct (91) is connected with the second side oil duct (92), is provided with valve between described second piston (9) and locking piston bar (4)
Core (40), described valve element (40) is correspondingly arranged with the first side oil duct (91), and described valve element (40) includes valve port (401), described lock
It is provided with the 3rd oil transportation channel (43) and the 4th oil transportation channel (44), described 3rd oil transportation channel (43) and valve in mould piston rod (4)
The side of mouth (401) is connected, and described 4th oil transportation channel (44) is connected with the opposite side of valve port (401).
2. injection machine interior circulation clamping according to claim 1, wherein, described back casing (11) is located at rear pattern plate
(2) side, the centrage of described shifting formwork piston rod (12) and the centrage of locking piston bar (4) are located along the same line.
3. injection machine interior circulation clamping according to claim 1, wherein, at the opening of described second containing cavity (41)
It is provided with end cap (42), described end cap (42) is matched with the opening of the second containing cavity (41).
4. injection machine interior circulation clamping according to claim 3, wherein, described second oil transportation channel (8) is located at shifting
In mould piston rod (12), described first oil transportation channel (7) is in end cap (42).
5. injection machine interior circulation clamping according to claim 1, wherein, described locking piston bar (4) runs through rear mold
Plate (2), one end that described locking piston bar (4) is provided with the second containing cavity (41) is located in back casing (11), the other end and dynamic model
Plate (10) is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410027891.XA CN103770296B (en) | 2014-01-21 | 2014-01-21 | Internal recycling clamping mechanism of injection molding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410027891.XA CN103770296B (en) | 2014-01-21 | 2014-01-21 | Internal recycling clamping mechanism of injection molding machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103770296A CN103770296A (en) | 2014-05-07 |
| CN103770296B true CN103770296B (en) | 2017-02-08 |
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ID=50563287
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410027891.XA Active CN103770296B (en) | 2014-01-21 | 2014-01-21 | Internal recycling clamping mechanism of injection molding machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103770296B (en) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2455457Y (en) * | 2000-12-30 | 2001-10-24 | 亿利达机器(深圳)有限公司 | Hydraulic mould locking device with liquid filling oil cylinder |
| KR100571559B1 (en) * | 2003-03-29 | 2006-04-17 | 엘에스전선 주식회사 | High speed direct pressure clamping device |
| JP4516097B2 (en) * | 2007-06-13 | 2010-08-04 | 株式会社名機製作所 | 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 |
-
2014
- 2014-01-21 CN CN201410027891.XA patent/CN103770296B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN103770296A (en) | 2014-05-07 |
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