CN105922518A - Valve needle control device for needle valve type hot runner system - Google Patents
Valve needle control device for needle valve type hot runner system Download PDFInfo
- Publication number
- CN105922518A CN105922518A CN201610514900.7A CN201610514900A CN105922518A CN 105922518 A CN105922518 A CN 105922518A CN 201610514900 A CN201610514900 A CN 201610514900A CN 105922518 A CN105922518 A CN 105922518A
- Authority
- CN
- China
- Prior art keywords
- needle
- chamber
- channel
- driving cylinder
- cylinder
- 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.)
- Granted
Links
- 230000001105 regulatory effect Effects 0.000 claims abstract description 7
- 238000000034 method Methods 0.000 claims description 25
- 239000004519 grease Substances 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims 1
- 239000000872 buffer Substances 0.000 abstract description 12
- 238000007789 sealing Methods 0.000 description 8
- 230000003139 buffering effect Effects 0.000 description 5
- 238000013016 damping Methods 0.000 description 3
- 230000033001 locomotion Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 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
- 238000005299 abrasion Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 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 invention provides a valve needle control device for a needle valve type hot runner system. The valve needle control device for the needle valve type hot runner system comprises a drive cylinder (7) and a buffer cylinder (11). The valve needle control device is characterized in that a first channel (A) and a second channel (B) communicating with a second oil return chamber (H) and a feeding chamber (j) are arranged on a cylinder body of the buffer cylinder (11) and a cylinder body of the drive cylinder (7); in the second oil return chamber (H), an outlet of the second channel (B) is closer to the drive cylinder (7) compared with an outlet of the first channel (A); a third channel (C) communicating with a first oil return chamber (T) and the feeding chamber (j) is arranged inside the buffer piston (12); a regulating screw is installed on the cylinder body of the buffer cylinder (11); and the top end of the regulating screw is located in the second channel (B). The valve needle control device for the needle valve type hot runner system can regulate the buffer speed of a valve needle, thereby effectively improving the universality of the needle valve type hot runner system and accordingly reducing the production cost for enterprises.
Description
Technical field
The present invention relates to injection mold technical field, particularly relate to a kind of for needle valve type hot runner system
Needle control device.
Background technology
In needle valve type hot runner system, the closing of cast gate is to be propped up the discharging opening of hot nozzle by needle in fact
Existing, so, during closing cast gate, after hot nozzle is touched on the needle top of motion, speed moment is reduced to
Zero, if the speed of needle is not buffered during Gai, then the impact between needle and hot nozzle
Power can be very big, thus by causing serious impact wear, even makes nozzle gate part breaking.
At present, the needle valve type hot runner system with needle buffering protection function is typically with fixing deceleration
Degree buffers, but, Shooting Technique is different because of material and the difference of product structure, and plastics flow
Property and injection pressure etc. require that different Shooting Techniques should be equipped with different needle buffer speeds, so mesh
Before needle valve type hot runner system versatility poor, in order to meet Production requirement, enterprise has to invest to build many
Individual TOP-TIP, thus take more production cost.
In sum, how to improve the versatility of needle valve type hot runner system, thus reduce the production of enterprise
Cost becomes the technical problem that those skilled in the art are urgently to be resolved hurrily.
Summary of the invention
In view of this, the invention provides a kind of needle for needle valve type hot runner system and control device,
This needle controls device and can be adjusted needle buffer speed, it is thus possible to be effectively improved needle valve
The versatility of TOP-TIP, and then reduce the production cost of enterprise.
In order to achieve the above object, the present invention provides following technical scheme:
A kind of needle for needle valve type hot runner system controls device, including:
The driving cylinder being installed on runner plate, is provided with driving piston, described driving piston in described driving cylinder
Fixing with needle near one end of described runner plate and be connected, described driving piston is away from the one of described runner plate
Forming process room between end and described driving cylinder, described driving cylinder removes another part chamber of described process room
Room is referred to as backhaul chamber, and described process room and described backhaul chamber are respectively provided with leads to oil outside described driving cylinder and lead to
Road；
It is installed on the cushion dashpot of the other end of the most described runner plate of described driving cylinder, sets in described cushion dashpot
It is indoor that the cylinder body having damper piston, one end of described damper piston to run through described driving cylinder enters described process,
And fixing with described driving piston is connected, formation between the other end and the described cushion dashpot of described damper piston
First oil revolute chamber, described cushion dashpot removes another part chamber of described first oil revolute chamber and is referred to as the second oil return
Offer on room, described cushion dashpot and the cylinder body of described driving cylinder connect described second oil revolute chamber and described enter
The first passage of journey room and second channel, and in described second oil revolute chamber, the outlet of described second channel
Connection is offered closer to described driving cylinder, the inside of described damper piston than the outlet of described first passage
Described first oil revolute chamber and the third channel of described process room, the cylinder body of described cushion dashpot is provided with regulation
Screw, the top of described regulation screw is positioned at described second channel, and is used for regulating described second channel
The size of flow section.
Preferably, in above-mentioned needle controls device, the diameter of described second channel leads to less than described first
The diameter in road.
Preferably, in above-mentioned needle controls device, in described driving cylinder, it is provided with chamber adjustment ring, described
Chamber adjustment ring is socketed on described driving piston, and threadeds with described driving cylinder.
Preferably, in above-mentioned needle controls device, described runner plate is provided with valve needle cover.
According to technique scheme, the needle that the present invention provides controls in device, due at second time
In grease chamber, the outlet of second channel than the outlet of first passage closer to driving cylinder, so damper piston to
The outlet of first passage can be first blocked when needle direction is moved, and after being plugged due to first passage, oil circuit
Change, diminish before the velocity ratio of fluid under the conditions of uniform pressure, so the movement of damper piston
It is obstructed enhancing, thus realizes buffering.Simultaneously as be provided with regulation screw on the cylinder body of cushion dashpot, adjust
The top of joint screw is positioned at second channel, it is possible to by regulating the big of the flow section of second channel
The little purpose realizing changing buffer speed.In sum, the needle that the present invention provides controls device can
Needle buffer speed is adjusted, it is thus possible to be effectively improved the versatility of needle valve type hot runner system,
And then reduce the production cost of enterprise.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to reality
Execute the required accompanying drawing used in example or description of the prior art to be briefly described, it should be apparent that below,
Accompanying drawing in description is only embodiments of the invention, for those of ordinary skill in the art, not
On the premise of paying creative work, it is also possible to obtain other accompanying drawing according to the accompanying drawing provided.
Fig. 1 is the generalized section that the needle that the embodiment of the present invention provides controls device；
Fig. 2 is the schematic appearance that the needle that the embodiment of the present invention provides controls device；
Fig. 3 is that schematic diagram disassembled by the part of the needle control device that the embodiment of the present invention provides.
Figure is labeled as:
1 hot nozzle；2 runner plates；3～6,15,17,18 sealing rings；7 driving cylinders；8 pipes
Joint；9,14 trip bolt；10 dash adjustment assemblies；11 cushion dashpots；12 damper pistons；
13 cylinder caps；16 link blocks；19～21 Glais rings；22 drive piston；23 needles；24 chambeies
Room adjustment ring；25 valve needle covers；A first passage；B second channel；C third channel；F returns
Journey room；J process room；T the first oil revolute chamber；H the second oil revolute chamber；K damping hole.
Detailed description of the invention
In order to make it easy to understand, the invention will be further described below in conjunction with the accompanying drawings.
Seeing Fig. 1～Fig. 3, Fig. 1 is the generalized section that the needle that the embodiment of the present invention provides controls device；
Fig. 2 is the schematic appearance that the needle that the embodiment of the present invention provides controls device；Fig. 3 is the embodiment of the present invention
The needle provided controls the part of device and disassembles schematic diagram.
A kind of needle for needle valve type hot runner system that the embodiment of the present invention provides controls device and includes peace
The driving cylinder 7 being loaded on runner plate 2 and the cushion dashpot 11 being installed on driving cylinder 7, such as Fig. 2 and Fig. 3
Shown in, cushion dashpot 11 is positioned at the other end of driving cylinder 7 opposing flow field plate 2, driving cylinder 7 and runner plate 2
Being connected by trip bolt 9, cushion dashpot 11 is connected with driving cylinder 7 trip bolt 14.
As it is shown in figure 1, be provided with driving piston 22 in driving cylinder 7, drive piston 22 near runner plate 2
One end is fixing with needle 23 to be connected, and drives piston 22 away between one end and the driving cylinder 7 of runner plate 2
Formation process room j, it is backhaul chamber f that driving cylinder 7 removes another part chamber of process room j, process room j and
Backhaul chamber f is respectively provided with the oily passage (part that i.e. pipe joint 8 is installed) led to outside driving cylinder 7；
Being provided with damper piston 12 in cushion dashpot 11, the cylinder body of driving cylinder 7 is run through in one end of damper piston 12
In entrance process room j, and it is connected with driving piston 22 to fix, the other end of damper piston 12 and cushion dashpot
Forming the first oil revolute chamber T between 11, it is that cushion dashpot 11 removes another part chamber of the first oil revolute chamber T
Offer on two oil revolute chamber H, cushion dashpot 11 and the cylinder body of driving cylinder 7 and connect the second oil revolute chamber H and process
The first passage A and second channel B of room j, and in the second oil revolute chamber H, the outlet of second channel B
Outlet than first passage A is closer to driving cylinder 7, and the inside of damper piston 12 offers connection first time
Grease chamber T and the third channel C of process room j, the cylinder body of cushion dashpot 11 is provided with dash adjustment assembly 10,
Dash adjustment assembly 10 includes regulating screw, spline spring and O-ring seals, the position, top of regulation screw
In second channel B (i.e. at damping hole k), and for regulating the big of the flow section of second channel B
Little.
In the present embodiment, runner plate 2 is provided with valve needle cover 25, the abrasion of needle 23 can be reduced and to valve
The movement of pin 23 play the guiding role.Being provided with chamber adjustment ring 24 in driving cylinder 7, chamber adjustment ring 24 is overlapped
It is connected on driving piston 22, and threadeds with driving cylinder 7, adjustable by rotating chamber adjustment ring 24
The size of whole driving cylinder 7 chamber.
From Fig. 1 and Fig. 3, sealed by sealing ring 15 between the cylinder body of cylinder cap 13 and cushion dashpot 11,
Sealed, between damper piston 12 and driving cylinder 7 by sealing ring 18 between cushion dashpot 11 and driving cylinder 7
Sealed by sealing ring 17, drive between piston 22 and driving cylinder 7 by sealing ring 6 and Glais ring 19
Seal, chamber adjustment ring 24 and drive to have between piston 22 at two and seal, wherein by sealing ring 5 at one
Seal with Glais ring 20, sealed by sealing ring 4 and Glais ring 21 at another, chamber adjustment ring 24 with
Sealed by sealing ring 3 between driving cylinder 7.
Seeing Fig. 1, the operation principle that the needle that the present invention provides controls device is as follows:
When needs valve needle 23 moves down realization closing hot nozzle 1, the process room j of driving cylinder 7
Oil-feed, oil pressure promotes and drives piston 22 to move down, and drives damper piston 12 to move downwardly together,
In the j of process room, oil is supplied into the first oil revolute chamber T by suction function by third channel C, and due to
In second oil revolute chamber H, the outlet outlet than first passage A of second channel B 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 leads to
Cross first passage A and second channel B by the oil pressure process room j of the second oil revolute chamber H, when buffering is lived
After plug 12 drops to the outlet of first passage A, first passage A is plugged, and damper piston 12 only passes through
Second channel B is by the oil pressure process room j of the second oil revolute chamber H, owing to oil circuit changes, in phase
With under pressure condition, diminish before the velocity ratio that first passage A is plugged rear fluid, this oil flow
Change make damper piston 12 move down enhancing of being obstructed, thus realize buffering.Simultaneously as
At the damping hole k of two passage B, dash adjustment assembly 10 is installed, it is possible to by regulation second channel
The size of the flow section of B realizes changing the purpose of buffer speed.
It should be noted that this specification is for convenience's sake, illustrate in oil pressure actuated mode,
It will be readily appreciated, however, that air pressure type of drive can also be used, this is not construed as limiting by the present invention.
From above-mentioned operation principle, needle buffer speed can be adjusted by the present invention, it is thus possible to
It is effectively improved the versatility of needle valve type hot runner system, and then reduces the production cost of enterprise.
In order to strengthen buffering effect, in the present embodiment, the diameter of second channel B is less than first passage A's
Diameter.
Described above to the disclosed embodiments, makes professional and technical personnel in the field be capable of or uses
The present invention.Multiple amendment to embodiment will be apparent from for those skilled in the art,
Generic principles defined herein can without departing from the spirit or scope of the present invention, at it
Its embodiment realizes.Therefore, the present invention is not intended to be limited to embodiment illustrated herein, and is intended to
Meet the widest scope consistent with principles disclosed herein and features of novelty.
Claims (4)
1. the needle for needle valve type hot runner system controls device, it is characterised in that including:
The driving cylinder (7) being installed on runner plate (2), described driving cylinder is provided with driving piston in (7)
(22), described driving piston (22) is fixed with needle (23) near one end of described runner plate (2)
Connecting, described driving piston (22) is away from one end and the described driving cylinder (7) of described runner plate (2)
Between formed process room (j), described driving cylinder (7) removes another part chamber of described process room (j)
Room be referred to as backhaul chamber (f), described process room (j) and described backhaul chamber (f) be respectively provided with lead to described in drive
The oily passage that dynamic cylinder (7) is outside；
It is installed on the cushion dashpot (11) of the other end of described driving cylinder (7) the most described runner plate (2),
Being provided with damper piston (12) in described cushion dashpot (11), one end of described damper piston (12) is run through
The cylinder body of described driving cylinder (7) enters in described process room (j), and solid with described driving piston (22)
Fixed connection, is formed first time between the other end and the described cushion dashpot (11) of described damper piston (12)
Grease chamber (T), described cushion dashpot (11) removes another part chamber of described first oil revolute chamber (T) and claims
It is the second oil revolute chamber (H), the cylinder body of described cushion dashpot (11) and described driving cylinder (7) offers
Connect first passage (A) and the second channel (B) of described second oil revolute chamber (H) and described process room (j),
And in described second oil revolute chamber (H), the outlet of described second channel (B) is than described first passage (A)
Outlet closer to described driving cylinder (7), it is described that the inside of described damper piston (12) offers connection
The third channel (C) of the first oil revolute chamber (T) and described process room (j), described cushion dashpot (11)
Being provided with regulation screw on cylinder body, the top of described regulation screw is positioned at described second channel (B), and
For regulating the size of the flow section of described second channel (B).
Needle the most according to claim 1 controls device, it is characterised in that described second channel (B)
Diameter less than the diameter of described first passage (A).
Needle the most according to claim 1 controls device, it is characterised in that described driving cylinder (7)
Inside being provided with chamber adjustment ring (24), described chamber adjustment ring (24) is socketed in described driving piston (22)
On, and threaded with described driving cylinder (7).
4. control device according to the needle described in any one in claims 1 to 3, it is characterised in that institute
State and valve needle cover (25) is installed on runner plate (2).
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 true CN105922518A (en) | 2016-09-07 |
| CN105922518B 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) |
Cited By (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 |
Citations (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
Patent Citations (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 |
Cited By (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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105922518B (en) | 2018-05-15 |
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| CF01 | Termination of patent right due to non-payment of annual fee |
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| CF01 | Termination of patent right due to non-payment of annual fee |