CN105922518B - A kind of needle control device for needle valve type hot runner system - Google Patents
A kind of needle control device for needle valve type hot runner system Download PDFInfo
- Publication number
- CN105922518B CN105922518B CN201610514900.7A CN201610514900A CN105922518B CN 105922518 B CN105922518 B CN 105922518B CN 201610514900 A CN201610514900 A CN 201610514900A CN 105922518 B CN105922518 B CN 105922518B
- Authority
- CN
- China
- Prior art keywords
- driving cylinder
- chamber
- needle
- channel
- control device
- 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
Links
- 238000000034 method Methods 0.000 claims abstract description 27
- 230000003139 buffering effect Effects 0.000 description 10
- 238000007789 sealing Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 4
- 238000013016 damping Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000002708 enhancing effect Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 241000438687 Juncus roemerianus Species 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
-
- 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
- B29C45/26—Moulds
- B29C45/27—Sprue channels ; Runner channels or runner nozzles
- B29C45/28—Closure devices therefor
- B29C45/2806—Closure devices therefor consisting of needle valve systems
-
- 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
- B29C45/76—Measuring, controlling or regulating
- B29C45/7613—Measuring, controlling or regulating the termination of flow of material into the mould
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Fluid-Damping Devices (AREA)
Abstract
The present invention provides a kind of needle control device for needle valve type hot runner system, including driving cylinder (7) and cushion dashpot (11), the characteristics of needle control device, is, cushion dashpot (11) connects the first passage (A) and second channel (B) of the second oil revolute chamber (H) and process room (j) with being offered on the cylinder body of driving cylinder (7), and in the second oil revolute chamber (H), the outlet of second channel (B) than first passage (A) outlet closer to driving cylinder (7), the inside of damper piston (12) offers the third channel (C) of the first oil revolute chamber of connection (T) and process room (j), adjusting screw is installed on the cylinder body of cushion dashpot (11), the top of adjusting screw is located in second channel (B).Needle buffer speed can be adjusted in the present invention, it is thus possible to effectively improve the versatility of needle valve type hot runner system, and then reduce the production cost of enterprise.
Description
Technical field
The present invention relates to injection mold technology, more particularly to a kind of needle control for needle valve type hot runner system
Device processed.
Background technology
In needle valve type hot runner system, the closing of cast gate is to prop up the discharge port of hot nozzle by needle to realize, institute
With, during cast gate is closed, after hot nozzle is touched on the needle top of movement speed moment be reduced to zero, if should during not to valve
The speed of pin is into row buffering, then and the impact force between needle and hot nozzle can be very big, thus will trigger serious impact wear,
Even make nozzle gate part breaking.
At present, needle valve type hot runner system with needle buffering protection function is typically to be carried out with fixed deceleration
Buffering, however, different and different, the requirement difference such as plastic flow property and injection pressure of the Shooting Technique because of material and product structure
Shooting Technique should be equipped with different needle buffer speeds, so current needle valve type hot runner system versatility is poor, be
Meet production requirement, enterprise has to invest to build multiple Hot Runner System, thus takes more production cost.
In conclusion the versatility of needle valve type hot runner system how is improved, so that reducing the production cost of enterprise becomes
Those skilled in the art technical problems urgently to be resolved hurrily.
The content of the invention
In view of this, the present invention provides a kind of needle control device for needle valve type hot runner system, the needle control
Needle buffer speed can be adjusted in device processed, it is thus possible to the versatility of needle valve type hot runner system is effectively improved,
And then reduce the production cost of enterprise.
In order to achieve the above object, the present invention provides following technical solution：
A kind of needle control device for needle valve type hot runner system, including：
The driving cylinder being installed on runner plate, the driving cylinder is interior to be equipped with driving piston, and the driving piston is described in
One end of runner plate is fixedly connected with needle, shape between described driving piston one end and the driving cylinder away from the runner plate
Into process room, another part chamber that the driving cylinder removes the process room is known as backhaul chamber, the process room and described time
Journey room is respectively provided with the oily passage led to outside the driving cylinder；
The cushion dashpot of the other end of the relatively described runner plate of the driving cylinder is installed on, being equipped with buffering in the cushion dashpot lives
Plug, one end of the damper piston enter in the process room through the cylinder body of the driving cylinder, and consolidate with the driving piston
Fixed connection, forms the first oil revolute chamber between the other end of the damper piston and the cushion dashpot, described in the cushion dashpot removes
Another part chamber of first oil revolute chamber is known as the second oil revolute chamber, the company of offering on the cylinder body of the cushion dashpot and the driving cylinder
Lead to the first passage and second channel of second oil revolute chamber and the process room, and in second oil revolute chamber, described the
Outlet of the outlet of two passages than the first passage offers connection closer to the driving cylinder, the inside of the damper piston
First oil revolute chamber and the third channel of the process room, are provided with adjusting screw, the tune on the cylinder body of the cushion dashpot
The top of section screw is located in the second channel, and the size of the flow section for adjusting the second channel.
Preferably, in above-mentioned needle control device, the diameter of the second channel is less than the diameter of the first passage.
Preferably, in above-mentioned needle control device, chamber adjustment ring, the chamber adjustment ring are equipped with the driving cylinder
It is socketed on the driving piston, and is threadedly coupled with the driving cylinder.
Preferably, in above-mentioned needle control device, valve needle cover is installed on the runner plate.
According to above-mentioned technical proposal, in needle control device provided by the invention, due in the second oil revolute chamber,
The outlet of two passages than first passage outlet closer to driving cylinder, so damper piston can be blocked first when being moved to needle direction
The outlet of first passage, and after being plugged due to first passage, oil circuit changes, the flow velocity of fluid under the conditions of uniform pressure
Diminish than before, the enhancing so movement of damper piston is obstructed, so as to fulfill buffering.Simultaneously as pacify on the cylinder body of cushion dashpot
Equipped with adjusting screw, the top of adjusting screw is located in second channel, it is possible to by the flow section for adjusting second channel
Size come realize change buffer speed purpose.In conclusion needle control device provided by the invention can delay needle
Rush speed to be adjusted, it is thus possible to effectively improve the versatility of needle valve type hot runner system, and then reduce the production of enterprise
Cost.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is attached drawing needed in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
The embodiment of invention, for those of ordinary skill in the art, without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 is the diagrammatic cross-section of needle control device provided in an embodiment of the present invention；
Fig. 2 is the appearance diagram of needle control device provided in an embodiment of the present invention；
Fig. 3 is that the part of needle control device provided in an embodiment of the present invention disassembles schematic diagram.
In figure mark for：
1-hot nozzle；2-runner plate；3~6,15,17,18-sealing ring；7-driving cylinder；8-pipe fitting；9、14—
Trip bolt；10-buffering adjusting part；11-cushion dashpot；12-damper piston；13-cylinder cap；16-link block；19~
21-Glais ring；22-driving piston；23-needle；24-chamber adjustment ring；25-valve needle cover；A-first passage；B-the
Two passages；C-third channel；F-backhaul chamber；J-process room；The oil revolute chamber of T-first；The oil revolute chamber of H-second；K-damping hole.
Embodiment
In order to make it easy to understand, the invention will be further described below in conjunction with the accompanying drawings.
Referring to Fig. 1~Fig. 3, Fig. 1 is the diagrammatic cross-section of needle control device provided in an embodiment of the present invention；Fig. 2 is this
The appearance diagram for the needle control device that inventive embodiments provide；Fig. 3 is needle control device provided in an embodiment of the present invention
Part disassemble schematic diagram.
A kind of needle control device for needle valve type hot runner system provided in an embodiment of the present invention includes being installed on stream
Driving cylinder 7 and the cushion dashpot 11 being installed on driving cylinder 7 on guidance tape 2, as shown in Figures 2 and 3, cushion dashpot 11 is located at driving cylinder
The other end of 7 opposing flow field plates 2, driving cylinder 7 are connected with runner plate 2 by trip bolt 9, and cushion dashpot 11 is fastened with driving cylinder 7
Screw 14 connects.
As shown in Figure 1, being equipped with driving piston 22 in driving cylinder 7, driving piston 22 is close to one end of runner plate 2 and needle 23
It is fixedly connected, driving piston 22 forms process room j between one end and driving cylinder 7 away from runner plate 2, driving cylinder 7 removes process
Another part chamber of room j is that backhaul chamber f, process room j and backhaul chamber f are respectively provided with the oily passage led to outside driving cylinder 7 and (manage
The part that connector 8 is installed)；
Damper piston 12 is equipped with cushion dashpot 11, one end of damper piston 12 enters process room j through the cylinder body of driving cylinder 7
It is interior, and be fixedly connected with driving piston 22, the first oil revolute chamber T is formed between the other end and cushion dashpot 11 of damper piston 12, is delayed
It is the second oil revolute chamber H to rush cylinder 11 and remove another part chamber of the first oil revolute chamber T, is opened on the cylinder body of cushion dashpot 11 and driving cylinder 7
First passage A and second channel B equipped with connection the second oil revolute chamber H and process room j, and in the second oil revolute chamber H, second channel
Outlet of the outlet of B than first passage A closer to driving cylinder 7, the inside of damper piston 12 offer the first oil revolute chamber T of connection and
The third channel C of process room j, buffering adjusting part 10 is provided with the cylinder body of cushion dashpot 11, and buffering adjusting part 10 includes adjusting
Screw, rotation stop spring and O-ring seals are saved, the top of adjusting screw is located in second channel B (i.e. at damping hole k), and is used for
Adjust the size of the flow section of second channel B.
In the present embodiment, valve needle cover 25 is installed on runner plate 2, the abrasion of needle 23 can be reduced and to the movement of needle 23
It play the guiding role.Is equipped with chamber adjustment ring 24 in driving cylinder 7, chamber adjustment ring 24, which is socketed in, to be driven on piston 22, and with driving
Cylinder 7 is threadedly coupled, and the size of 7 chamber of driving cylinder is can adjust by rotating chamber adjustment ring 24.
By Fig. 1 and Fig. 3 as it can be seen that being sealed between the cylinder body of cylinder cap 13 and cushion dashpot 11 by sealing ring 15, cushion dashpot 11 with
Sealed by sealing ring 18 between driving cylinder 7, sealed between damper piston 12 and driving cylinder 7 by sealing ring 17, drive piston
Sealed, had between chamber adjustment ring 24 and driving piston 22 close at two by sealing ring 6 and Glais ring 19 between 22 and driving cylinder 7
Envelope, wherein being sealed at one by sealing ring 5 and Glais ring 20, another place is sealed by sealing ring 4 and Glais ring 21, chamber adjustment
Sealed between ring 24 and driving cylinder 7 by sealing ring 3.
Referring to Fig. 1, the operation principle of needle control device provided by the invention is as follows：
When needing valve needle 23 to move down realization closing hot nozzle 1, the process room j oil inlets of driving cylinder 7, oil pressure pushes away
Dynamic driving piston 22 moves down, and drives damper piston 12 to move downwardly together, and oil passes through by suction function in the j of process room
Third channel C is supplied into the first oil revolute chamber T, and since in the second oil revolute chamber H, the outlet of second channel B is than first passage A
Outlet closer to driving cylinder 7, so, before the lower end of damper piston 12 drops to the outlet of first passage A, damper piston
12 by first passage A and second channel B by the oil pressure of the second oil revolute chamber H into the j of process room, when damper piston 12 drops to
Behind the outlet of one passage A, first passage A is plugged, and damper piston 12 is only by second channel B by the oil pressure of the second oil revolute chamber H
Into in the j of process room, since oil circuit changes, under the conditions of uniform pressure, first passage A be plugged rear fluid velocity ratio it
Before diminish, the change of this oil flow causes damper piston 12 to move down enhancing of being obstructed, so as to fulfill buffering.Meanwhile by
Buffering adjusting part 10 is installed at the damping hole k in second channel B, it is possible to by the overcurrent for adjusting second channel B
The size of section changes the purpose of buffer speed to realize.
It should be noted that this specification for convenience's sake, is illustrated in a manner of oil pressure actuated, but easily reason
Solution, can also use air pressure type of drive, this is not limited by the present invention.
From above-mentioned operation principle, needle buffer speed can be adjusted in the present invention, it is thus possible to effectively carry
The versatility of high needle valve type hot runner system, and then reduce the production cost of enterprise.
In order to strengthen buffering effect, in the present embodiment, the diameter of second channel B is less than the diameter of first passage A.
The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or use the present invention.
A variety of modifications to embodiment will be apparent for those skilled in the art, as defined herein general
Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, the present invention will not
Embodiment illustrated herein can be restricted to, and is to fit to consistent with the principles and novel features disclosed herein most wide
Scope.
Claims (4)
- A kind of 1. needle control device for needle valve type hot runner system, it is characterised in that including：The driving cylinder (7) being installed on runner plate (2), the driving cylinder (7) is interior to be equipped with driving piston (22), the driving piston (22) it is fixedly connected close to one end of the runner plate (2) with needle (23), the driving piston (22) is away from the runner plate (2) process room (j) is formed between one end and the driving cylinder (7), the driving cylinder (7) removes the another of the process room (j) A part of chamber is known as backhaul chamber (f), and the process room (j) and the backhaul chamber (f), which are respectively provided with, leads to the driving cylinder (7) outside The oily passage in portion；The cushion dashpot (11) of the other end of the relatively described runner plate (2) of the driving cylinder (7) is installed on, the cushion dashpot (11) is interior Equipped with damper piston (12), one end of the damper piston (12) enters the process room through the cylinder body of the driving cylinder (7) (j) in, and be fixedly connected with the driving piston (22), the other end of the damper piston (12) and the cushion dashpot (11) it Between form the first oil revolute chamber (T), another part chamber that the cushion dashpot (11) removes first oil revolute chamber (T) is known as second Oil revolute chamber (H), the cushion dashpot (11) with offered on the cylinder body of the driving cylinder (7) connect second oil revolute chamber (H) and The first passage (A) and second channel (B) of the process room (j), and in second oil revolute chamber (H), the second channel (B) opened closer to the driving cylinder (7), the inside of the damper piston (12) outlet of the outlet than the first passage (A) Equipped with the third channel (C) for connecting first oil revolute chamber (T) and the process room (j), on the cylinder body of the cushion dashpot (11) Adjusting screw is installed, the top of the adjusting screw is located in the second channel (B), and for adjusting the second channel (B) size of flow section.
- 2. needle control device according to claim 1, it is characterised in that the diameter of the second channel (B) is less than institute State the diameter of first passage (A).
- 3. needle control device according to claim 1, it is characterised in that chamber is equipped with the driving cylinder (7) and is adjusted Ring (24), the chamber adjustment ring (24) is socketed on the driving piston (22), and is threadedly coupled with the driving cylinder (7).
- 4. the needle control device according to any one in claims 1 to 3, it is characterised in that on the runner plate (2) Valve needle cover (25) is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610514900.7A CN105922518B (en) | 2016-06-30 | 2016-06-30 | A kind of needle control device for needle valve type hot runner system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610514900.7A CN105922518B (en) | 2016-06-30 | 2016-06-30 | A kind of needle control device for needle valve type hot runner system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105922518A CN105922518A (en) | 2016-09-07 |
| CN105922518B true CN105922518B (en) | 2018-05-15 |
Family
ID=56828930
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610514900.7A Expired - Fee Related CN105922518B (en) | 2016-06-30 | 2016-06-30 | A kind of needle control device for needle valve type hot runner system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105922518B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108943606A (en) * | 2018-08-15 | 2018-12-07 | 杭州超特科技有限公司 | A kind of hydraulic cylinder mechanism and oil circulation method of hot flow path |
| CN111186086A (en) * | 2020-01-13 | 2020-05-22 | 杭州源航工业设计有限公司 | Rapid injection molding mechanism of injection molding machine and injection molding method thereof |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2803679Y (en) * | 2005-05-17 | 2006-08-09 | 先锐模具配件(东莞)有限公司 | Auto regulation cylinder for hot runner mould |
| CN205800078U (en) * | 2016-06-30 | 2016-12-14 | 广东工业大学 | A kind of needle for needle valve type hot runner system controls device |
-
2016
- 2016-06-30 CN CN201610514900.7A patent/CN105922518B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN105922518A (en) | 2016-09-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105587199B (en) | A kind of air pressure door closer | |
| CN103122882B (en) | Adjustable pilot overflow valve | |
| CN105922518B (en) | A kind of needle control device for needle valve type hot runner system | |
| CN103122884B (en) | Adjustable pilot overflow valve | |
| CN102235395B (en) | Magnetic coupling triaxial cylinder with adjustable buffer mechanism | |
| CN205800078U (en) | A kind of needle for needle valve type hot runner system controls device | |
| JPS6155712A (en) | Flow control valve | |
| CN107427909B (en) | Supercharger arrangement, die casting machine casting unit and operating method | |
| CN204922046U (en) | Guide's formula high temperature stop valve | |
| CN108758009A (en) | A kind of pressure adjustable type pressure-control valve | |
| CN108035923A (en) | A kind of dissimilar redundancy electrohydraulic servo valve | |
| CN104692279B (en) | Oil-returning structure | |
| CN104913102B (en) | Disc valve with main valve and auxiliary valve in mechanical linkage | |
| CN206723481U (en) | It is a kind of to be used to adjust casting flow and the cone valve and its casting system of opening and closing | |
| CN204328099U (en) | Railway freight-car gas charging valve | |
| CN202125483U (en) | Magnetic coupling tri-axial cylinder with adjustable buffer | |
| CN103233822B (en) | A kind of constant voltage exhaust brake method and this constant voltage exhaust brake butterfly valve | |
| CN206017540U (en) | A kind of hydraulic bjuffer | |
| US3949646A (en) | Control device for air cylinder unit | |
| CN103850998B (en) | A kind of pressure stopper by electromagnetic valve opening and closing | |
| CN204573155U (en) | A kind of plate valve for dilute phase pneumatic conveying | |
| CN107932180A (en) | A kind of digital control lathes pneumatic door switch pneumatic circuit | |
| WO2015074296A1 (en) | Full-closed multi-speed buffering driven hydraulic cylinder | |
| CN106594300A (en) | Valve device capable of adjusting flow and opening and closing speed | |
| CN101839259B (en) | Two-way directional cartridge valve having throttling and braking functions |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| 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: 20180515 Termination date: 20190630 |