CN108381876B - Valve needle type hot runner cylinder - Google Patents
Valve needle type hot runner cylinder Download PDFInfo
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- CN108381876B CN108381876B CN201810189302.6A CN201810189302A CN108381876B CN 108381876 B CN108381876 B CN 108381876B CN 201810189302 A CN201810189302 A CN 201810189302A CN 108381876 B CN108381876 B CN 108381876B
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- cylinder body
- hot runner
- cylinder
- type hot
- supporting
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- 238000009413 insulation Methods 0.000 claims description 12
- 238000006073 displacement reaction Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000007789 sealing Methods 0.000 abstract description 11
- 238000001816 cooling Methods 0.000 abstract description 6
- 230000007797 corrosion Effects 0.000 abstract description 4
- 238000005260 corrosion Methods 0.000 abstract description 4
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 238000012423 maintenance Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000004033 plastic Substances 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 230000032683 aging Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000001939 inductive effect Effects 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
Images
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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention discloses a valve needle type hot runner cylinder which comprises a cylinder body and a supporting plate, wherein a piston is arranged in the cylinder body and is used for driving a valve needle connected with the piston to do longitudinal movement relative to the cylinder body, and one end of the cylinder body is connected with the supporting plate; the valve needle type hot runner cylinder further comprises an elastic part, the elastic part is arranged between the supporting plate and the cylinder body, the other end of the cylinder body is provided with a template, the template can drive the cylinder body to move towards the direction of the supporting plate under the action of elastic force of the elastic part, and the cylinder body is in conflict with the template under the action of the elastic force of the elastic part. The setting of elastic component, the heat that gives the cylinder body with the flow distribution plate via the backup pad is further transmitted to the template in order to dispel the heat with higher speed effectively, and need not to set up cooling device in addition, has simplified the system, has solved the problem that the interior sealing washer of cylinder body became invalid because of the hot corrosion easily, has prolonged the life of sealing washer, the cost is reduced.
Description
Technical Field
The invention belongs to the technical field of hot runner injection molding, and particularly relates to a valve needle type hot runner cylinder.
Background
Hot runners are a collection of heating assemblies used in injection molds to inject molten plastic into the cavity of the mold. Hot runner systems are generally comprised of a hot nozzle, a manifold, a temperature control box, and accessories. The hot runner system is divided into an open type hot runner system and a valve needle type hot runner system, wherein a valve needle is usually driven to move by an air cylinder or an oil cylinder in the valve needle type hot runner system, and the valve needle can be driven to move by controlling a cylinder body so as to control the opening and closing of a pouring gate.
In the prior art, a cylinder body of an air cylinder or an oil cylinder is connected with a flow distribution plate through a support plate, and the support plate and the flow distribution plate are respectively provided with corresponding guide holes for a valve needle to enter the flow distribution plate and a hot nozzle so as to control the opening and closing of a sprue of a mold cavity for plastic in a flow passage of the flow distribution plate and the hot nozzle. Because the fluidity of the thermoplastic needs to be ensured in the injection molding process, heating wires need to be arranged in the splitter plate so as to continuously maintain the temperature of the plastic. And the flow distribution plate with higher temperature inevitably transmits heat to the cylinder body above through the supporting plate, so that elastic and plastic sealing rings and other parts in the cylinder body are heated, failure is easily caused, the performance of the cylinder body is directly influenced, and the flow distribution plate needs to be replaced at regular intervals. The replacement of the sealing ring is time-consuming and labor-consuming, the working efficiency is affected, and the use and maintenance cost of the valve needle type hot runner cylinder is increased.
In the prior art, a cooling device, such as a water channel plate, is arranged around the cylinder body to take away heat and reduce the aging influence of high temperature on the sealing ring, but the arrangement of the cooling device makes the hot runner system more complicated, increases parts and increases production cost.
In view of the above, there is a need to provide an improved valve pin type hot runner cylinder to solve the above technical problems.
Disclosure of Invention
The invention aims to provide a valve needle type hot runner cylinder, which can reduce the aging influence of a high-temperature environment on a cylinder body sealing ring by using a simple structure, thereby prolonging the service life of the sealing ring and reducing the production and maintenance cost of the hot runner cylinder.
In order to achieve the above purpose, the technical solutions provided by the embodiments of the present invention are as follows:
a valve needle type hot runner cylinder comprises a cylinder body and a supporting plate, wherein a piston is arranged in the cylinder body and used for driving a valve needle connected with the piston to move longitudinally relative to the cylinder body, and one end of the cylinder body is connected with the supporting plate; the valve needle type hot runner cylinder further comprises an elastic part, the elastic part is arranged between the supporting plate and the cylinder body, a template is arranged at the other end of the cylinder body, the template can drive the cylinder body to move towards the direction of the supporting plate under the action of elastic force of the elastic part, and the cylinder body is in collision with the template under the action of the elastic force of the elastic part.
As a further improvement of the invention, the cylinder body is connected with the supporting plate through a supporting column, and the elastic piece is sleeved on the supporting column.
As a further improvement of the invention, one end of the supporting column is fixedly connected with the supporting plate, the other end of the supporting column is movably connected with the cylinder body, and the cylinder body can move towards the supporting plate within a preset value range.
As a further improvement of the invention, the cylinder body is inwards provided with a counter bore for accommodating the limiting end, the counter bore and the edge of the through hole form an annular surface, and the limiting end is hung on the annular surface.
As a further improvement of the invention, the depth of the counter bore is greater than the vertical height of the end face of the limiting end from the annular face, and the difference between the depth of the counter bore and the height of the limiting end is matched with the preset value.
As a further improvement of the invention, the cylinder body is inwards provided with a second counter bore for accommodating the support column, and the distance from the top of the support column to the bottom of the second counter bore is matched with the preset value.
As a further improvement of the invention, a supporting surface for supporting the elastic member is arranged on the supporting column, the elastic member is a pressure spring, one end of the pressure spring is pressed against the cylinder body, and the other end of the pressure spring is pressed against the supporting surface.
As a further improvement of the invention, the piston is provided with an upper limit position and a lower limit position, the valve needle type hot runner cylinder further comprises a heat insulation plate, the supporting column penetrates through the heat insulation plate, and one end of the supporting column is connected with the supporting plate through a fastening screw.
As a further improvement of the invention, the supporting column is provided with a mounting end penetrating into the supporting plate, the outer diameter of the mounting end is smaller than that of the supporting column, the mounting end and the supporting column form a step part, and the step part abuts against the heat insulation plate to limit the longitudinal displacement of the heat insulation plate.
The invention has the beneficial effects that: according to the valve needle type hot runner cylinder, the elastic part is arranged between the cylinder body and the supporting plate, the elastic part is pressed by the action that the cylinder body is pressed downwards by the template in the assembling process of the injection mold, so that the cylinder body is kept in collision with the template under the action of elastic restoring force of the elastic part, the heat of the cylinder body is transferred to the template, the heat is concentrated on the cylinder body, the hot corrosion of the heat to a rubber sealing ring in the cylinder body is reduced, the service life of parts is prolonged, and the use and maintenance cost of the valve needle type hot runner cylinder is reduced. In addition, because the heat is dissipated through the template in an accelerated manner, a cooling device is not required to be additionally arranged around the cylinder body, the system is simplified, and the production cost is further reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic perspective view of a valve pin type hot runner cylinder according to an embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view of the valve pin hot runner cylinder of FIG. 1 taken along direction A-A;
FIG. 3 is a schematic cross-sectional view of the valve pin hot runner cylinder of FIG. 1 taken along the direction B-B.
Detailed Description
The present invention will be described in detail below with reference to specific embodiments shown in the drawings. These embodiments are not intended to limit the present invention, and structural, methodological, or functional changes made by those skilled in the art according to these embodiments are included in the scope of the present invention.
In the various drawings of the present invention, certain dimensions of structures or portions are exaggerated relative to other structures or portions for ease of illustration and, therefore, are used only to illustrate the basic structure of the subject matter of the present invention.
Terms such as "upper," "above," "lower," "below," and the like, used herein to denote relative spatial positions, are used for ease of description to describe one element or feature's relationship to another element or feature as illustrated in the figures. The spatially relative positional terms may be intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "below" can encompass both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly. Also, it should be understood that, although the terms first, second, etc. may be used herein to describe various elements or structures, these described elements should not be limited by these terms. These terms are only used to distinguish these descriptive objects from one another.
Referring to fig. 1 and 3, the invention discloses a valve needle type hot runner cylinder 7, which comprises a cylinder body 1 and a support plate 2, wherein a piston 10 is arranged in the cylinder body 1, the piston 10 is used for driving a valve needle (not shown in the figure) connected with the piston to move longitudinally relative to the cylinder body 1, and one end of the cylinder body 1 is connected with the support plate 2. In this embodiment, the cylinder body 1 is a cylinder, the cylinder body 1 includes a piston 10, a cylinder body and a valve needle extending longitudinally, and the piston 10 is longitudinally movably installed in the cylinder body and drives the valve needle to move longitudinally, so as to open and close the gate. The cylinder body is provided with an upper air port 121 and a lower air port 122, however, in other embodiments, the cylinder may be replaced by a hydraulic cylinder, and accordingly, the cylinder body is provided with an oil inlet and an oil outlet.
In the preferred embodiment, the valve needle type hot runner cylinder 7 further includes an elastic member 5, the elastic member 5 is disposed between the support plate 2 and the cylinder body 1, a mold plate (not shown) is disposed at the other end of the cylinder body 1, the mold plate can drive the cylinder body 1 to move toward the support plate 2 against the elastic force of the elastic member 5, and the cylinder body 1 keeps abutting against the mold plate under the elastic force of the elastic member 5.
Through set up elastic component 5 between cylinder body 1 and backup pad 2, utilize injection mold to compress tightly the action of cylinder body 1 downwards with the template in assembly process to exert pressure elastic component 5, make cylinder body 1 keep conflicting with the template under the effect of elastic restoring force of elastic component 5, thereby give the template with the heat transfer of cylinder body 1, reduce heat and gather on cylinder body 1, reduce the hot corrosion of heat to rubber seal in the cylinder body 1, thereby the life of extension spare part, reduce valve needle formula hot runner cylinder 7's use and maintenance cost, in addition, the setting up of elastic component 5 makes cylinder body 1 need not to set up cooling device in addition on every side, the system has been simplified, the common problem of prior art has been solved effectively.
Referring to fig. 2, the cylinder 1 is connected to the supporting plate 2 through the supporting column 3, and the elastic member 5 is sleeved on the supporting column 3. In this embodiment, one end of the supporting column 3 is fixedly connected with the supporting plate 2, the other end of the supporting column 3 is movably connected with the cylinder body 1, and the cylinder body 1 can move towards the supporting plate 2 within a preset value range. The end of the supporting column 3 connected with the supporting plate 2 is defined as a first end 32, the end connected with the cylinder 1 is defined as a second end 33, and the cylinder 1 can move towards the supporting plate 2 with the supporting column 3 as a guide because the second end 33 is movably connected with the cylinder 1.
Specifically, the cylinder body 1 is movably connected with the supporting column through a fastener 16, the cylinder body 1 is provided with a through hole 17 for receiving the fastener 16, the fastener 16 comprises a connecting end 161 and a limiting end 162 which are opposite, the connecting end 161 penetrates through the through hole 17 to be in threaded connection with the supporting column 3, and the limiting end 162 is hung on the edge of the through hole 17. In this embodiment, the fastening member 16 is a screw, the connecting end 161 thereof is provided with an external thread, the second end 33 of the supporting column 3 is inwardly recessed to be provided with an internal thread matching with the external thread, and the fastening member 16 and the supporting column 3 are fixedly connected through thread matching. The limiting end 162 is provided with an operating portion (not shown) for a user to rotate and lock, the operating portion is generally a recessed hexagon socket screw, and the user locks the fastener 16 with a hexagon wrench. In addition, the fastening member 16 further includes an intermediate portion (not labeled) between the connecting end 161 and the stopper end 162, which is an optical axis and is in clearance fit with the through hole 17, so that the cylinder block 1 can move along the fastening member 16.
With continued reference to fig. 2, the cylinder body 1 is recessed inward to form a counter bore 18 for receiving the limiting end 162, the counter bore 18 and the edge of the through hole 17 form an annular surface, and the limiting end 162 is hung on the annular surface. Preferably, the fastener 16 is a cup screw, the limiting end 162 is cylindrical, and the limiting end 162 is hung on an annular surface formed by the counter bore 18 and the edge of the through hole 17.
In the present embodiment, the depth of the counter bore 18 is greater than the vertical height of the end surface of the stopper end 162 from the annular surface, and the difference between the depth of the counter bore 18 and the height of the stopper end 162 matches a preset value. In other words, in the pre-installed state of the cylinder block 1, the end surface of the stopper end 162 of the fastening member 16 is spaced from the top surface of the cylinder block 1 by a predetermined distance, which matches a distance that the cylinder block 1 can move toward the support plate 2, i.e., a preset value. After the cylinder body 1 is pre-installed, a template is installed, the template drives the cylinder body 1 to overcome the action of the elastic force of the elastic piece 5 and move towards the supporting plate 2 until the template is installed in place, and then the cylinder body 1 moves upwards under the action of the elastic force of the elastic piece 5, so that the cylinder body 1 is kept in contact with the template.
The cylinder body 1 is inwards concavely provided with a second counter bore 19 for accommodating the support column 3, and the distance from the top of the support column 3 to the bottom of the second counter bore 19 is matched with a preset value. In other words, in the state shown in fig. 2, the die plate can drive the cylinder 1 to move the distance from the top of the supporting column 3 to the bottom of the second counterbore 19 toward the supporting plate 2 against the elastic force of the elastic member 5.
As shown in fig. 2, the elastic member 5 is a compression spring, the support pillar 3 is provided with a support surface 31 for supporting the elastic member 5, one end of the compression spring abuts against the cylinder body 1, and the other end abuts against the support surface 31. Of course, the other end of the pressure spring may also directly press against the support plate 2.
Referring to fig. 3, the cylinder body includes a cylinder 12 having an inner chamber for the piston 10 to move, the cylinder 12 is configured as a cylindrical housing having a lower opening, an upper cover 11 is provided on the top of the cylinder 12 and fixed by a clamp spring 110, and a base 13 is provided on the bottom of the cylinder 12 to seal the lower opening. To enhance the sealing effect, the base 13 is provided with an inner sealing ring 131 and an outer sealing ring 132. The base 13 and the cylinder 12 are in clearance fit, in addition, the lower part of the base 13 is also provided with a clamp spring 110, and the clamp spring 110 and a step-shaped limiting part (not marked) on the inner wall of the cylinder 12 limit the base 13 longitudinally together so as to limit the longitudinal movement of the base 13.
The valve needle (not shown) is mounted on the piston 10 via a suspension table (not shown) and is driven by the piston 10 to move longitudinally relative to the cylinder 1. The piston 10 has upper and lower two extreme positions, and the magnet 14 is connected to the piston 10, and magnet 14 is along with piston 10 longitudinal movement between upper and lower two extreme positions, and the cylinder 1 outside is equipped with the pilot lamp and corresponds extreme position's inductive switch 15, and when the piston 10 moved to extreme position, magnet 14 switched on inductive switch 15 and made the pilot lamp light. The indicator light is provided to facilitate the operator to know the stop position of the piston 10 so as to control the opening and closing of the gate more accurately.
Referring to fig. 2, the valve pin type hot runner cylinder 7 further comprises a heat insulation plate 6, the support pillar 3 penetrates through the heat insulation plate 6, and one end of the support pillar 3 is connected with the support plate 2 through a fastening screw. In the background art, the cylinder body 1 of the valve needle type hot runner cylinder 7 is fixed on a flow distribution plate (not shown in the figure) through the support plate 2, the heat of the flow distribution plate is inevitably transmitted to the cylinder body 1 through the support plate 2, and the arrangement of the elastic part 5 is beneficial to the cylinder body 1 to further transmit the heat to a template above the cylinder body 1 so as to accelerate the heat emission. And the heat insulation plate 6 is arranged, so that the heat of the flow distribution plate is blocked from being transferred from the support plate 2 to the cylinder body 1 to the maximum extent, and the heat is well supplemented to the heat dissipation of the cylinder body 1.
In the present embodiment, the supporting post 3 is provided with a mounting end 32 (i.e., the foregoing "first end") penetrating into the supporting plate 2, the outer diameter of the mounting end 32 is smaller than that of the supporting post 3, the mounting end 32 forms a step with the supporting post 3, and the step abuts against the heat-insulating plate 6 to limit the longitudinal displacement of the heat-insulating plate 6. The mounting end 32 of the support column 3 and the support plate 2 are locked by a fastening screw 60.
Referring to fig. 3, the heat insulation plate 6 and the support plate 2 are provided with circular holes at corresponding positions so that the valve needle can penetrate through and enter the inner cavity of the flow distribution plate, and can move longitudinally under the driving of the piston 10 so as to accurately control the opening and closing of the gate.
In summary, the valve needle type hot runner cylinder 7 provided by the preferred embodiment of the present invention has the elastic member 5, which effectively transfers the heat transferred from the flow distribution plate to the cylinder body 1 via the support plate 2 to the mold plate, and overcomes the defect that the rubber seal ring in the cylinder body 1 is easy to lose effectiveness due to hot corrosion by using a simple structure and a simple operation, thereby solving the common problems in the prior art. In addition, because the heat is dissipated through the template in an accelerated manner, a cooling device is not required to be additionally arranged around the cylinder body 1, the system is simplified, and the production cost is further reduced.
It should be understood that although the present description refers to embodiments, not every embodiment contains only a single technical solution, and such description is for clarity only, and those skilled in the art should make the description as a whole, and the technical solutions in the embodiments can also be combined appropriately to form other embodiments understood by those skilled in the art.
The above-listed detailed description is only a specific description of a possible embodiment of the present invention, and they are not intended to limit the scope of the present invention, and equivalent embodiments or modifications made without departing from the technical spirit of the present invention should be included in the scope of the present invention.
Claims (10)
1. A valve needle type hot runner cylinder comprises a cylinder body and a supporting plate, wherein a piston is arranged in the cylinder body and used for driving a valve needle connected with the piston to move longitudinally relative to the cylinder body, and one end of the cylinder body is connected with the supporting plate; the method is characterized in that: the valve needle type hot runner cylinder further comprises an elastic piece, the elastic piece is arranged between the supporting plate and the cylinder body, a template is arranged at the other end of the cylinder body, the template can drive the cylinder body to move towards the supporting plate under the action of elastic force of the elastic piece, and the cylinder body is in conflict with the template under the action of the elastic force of the elastic piece.
2. The valve pin type hot runner cylinder according to claim 1, wherein: the cylinder body pass through the support column with the backup pad links to each other, the elastic component cover is located on the support column.
3. The valve pin type hot runner cylinder according to claim 2, wherein: one end of the supporting column is fixedly connected with the supporting plate, the other end of the supporting column is movably connected with the cylinder body, and the cylinder body can move towards the supporting plate within a preset value range.
4. The valve pin type hot runner cylinder according to claim 3, wherein: the cylinder body pass through the fastener with support column swing joint, the cylinder body is equipped with the receipt the through-hole of fastener, the fastener includes relative link and spacing end, the link passes the through-hole with support column threaded connection, spacing end hang in the through-hole edge.
5. The valve pin type hot runner cylinder according to claim 4, wherein: the cylinder body is inwards provided with a counter bore for accommodating the limiting end, the counter bore and the edge of the through hole form an annular surface, and the limiting end is hung on the annular surface.
6. The valve pin type hot runner cylinder according to claim 5, wherein: the depth of the counter bore is larger than the vertical height of the end face of the limiting end from the annular face, and the difference between the depth of the counter bore and the height of the limiting end is matched with the preset value.
7. The valve pin type hot runner cylinder according to claim 4, wherein: the cylinder body is inwards provided with a second counter bore for accommodating the support column in an inwards concave mode, and the distance from the top of the support column to the bottom of the second counter bore is matched with the preset value.
8. The valve pin type hot runner cylinder according to claim 2, wherein: the supporting column is provided with a supporting surface for supporting the elastic piece, the elastic piece is a pressure spring, one end of the pressure spring abuts against the cylinder body, and the other end of the pressure spring abuts against the supporting surface.
9. The valve pin type hot runner cylinder according to claim 3, wherein: the valve needle type hot runner cylinder further comprises a heat insulation plate, the supporting column penetrates through the heat insulation plate, and one end of the supporting column is connected with the supporting plate through a fastening screw.
10. The valve pin type hot runner cylinder according to claim 9, wherein: the support column is provided with a mounting end penetrating into the support plate, the outer diameter of the mounting end is smaller than that of the support column, the mounting end and the support column form a step part, and the step part abuts against the heat insulation plate to limit the longitudinal displacement of the heat insulation plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810189302.6A CN108381876B (en) | 2018-03-08 | 2018-03-08 | Valve needle type hot runner cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810189302.6A CN108381876B (en) | 2018-03-08 | 2018-03-08 | Valve needle type hot runner cylinder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108381876A CN108381876A (en) | 2018-08-10 |
| CN108381876B true CN108381876B (en) | 2020-05-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810189302.6A Active CN108381876B (en) | 2018-03-08 | 2018-03-08 | Valve needle type hot runner cylinder |
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| Country | Link |
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| CN (1) | CN108381876B (en) |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202005002043U1 (en) * | 2005-02-08 | 2005-04-21 | Günther Heißkanaltechnik GmbH | Injection molding machine has a distributor and holders for the injection jets, each with a centering and fastening unit to give a secure and sealed mounting for the jets at the distributor |
| US20080171100A1 (en) * | 2007-01-17 | 2008-07-17 | Husky Injection Molding Systems Ltd. | Constant-Force Belleville Spring and an Injection Molding Melt-Conveyance System Incorporating such a Spring as a Seal Spring |
| DE102009024271B4 (en) * | 2009-06-05 | 2017-05-24 | Psg Plastic Service Gmbh | Actuator for a needle valve nozzle |
| CA2822458A1 (en) * | 2011-01-26 | 2012-08-02 | Husky Injection Molding Systems Ltd. | Valve-stem assembly removable from runner system while valve-actuator assembly remains connected with manifold assembly |
| EP3240666B1 (en) * | 2015-03-20 | 2019-03-27 | Synventive Molding Solutions, Inc. | Actuator cooling apparatus and method |
| CN206186262U (en) * | 2016-11-15 | 2017-05-24 | 柳道万和(苏州)热流道系统有限公司 | Needle driving cylinder and needle valve type hot runner system |
| CN208215898U (en) * | 2018-03-08 | 2018-12-11 | 柳道万和(苏州)热流道系统有限公司 | Valve needle type hot runner cylinder |
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2018
- 2018-03-08 CN CN201810189302.6A patent/CN108381876B/en active Active
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| CN108381876A (en) | 2018-08-10 |
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