CN205915621U - A gas assistance mould for processing cavity handle - Google Patents
A gas assistance mould for processing cavity handle Download PDFInfo
- Publication number
- CN205915621U CN205915621U CN201620721669.4U CN201620721669U CN205915621U CN 205915621 U CN205915621 U CN 205915621U CN 201620721669 U CN201620721669 U CN 201620721669U CN 205915621 U CN205915621 U CN 205915621U
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- Prior art keywords
- air tube
- mould
- gas
- plate
- diameter
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Abstract
The utility model belongs to the technical field of mould plastics, a a gas assistance mould for processing cavity handle is specifically disclosed. This mould includes movable mould and cover half, the cover half includes fixed mould panel and fixed die plate, and processing has the gating system on fixed mould panel and the fixed die plate, the movable mould includes movable mould bottom plate, movable mould board, ejecting pin face plate and ejection bottom plate, and ejecting pin face plate and ejection bottom plate install between movable mould bottom plate and movable mould board, one side of ejection bottom plate is fixed with thimble, the last rod hole of having seted up of movable mould bottom plate, be provided with cooling system, air flue and air tube subassembly on the movable mould board, the one end and the air flue intercommunication of air tube subassembly, the other end gos deep into mould cavity, the extended length direction of air tube subassembly is on a parallel with the ejecting direction of thimble. When moulding plastics, can pour into the supplementary die cavity shaping of nitrogen gas into through the air tube subassembly, after dividing the mould, once straight top can be ejecting smoothly with moulding the piece. The utility model discloses a cavity is assisted the mould to the luck and is had advantages such as simple structure, mould development cost are low, production cycle weak point, injection efficiency height.
Description
Technical field
This utility model belongs to injection molding technology field and in particular to a kind of gas-assist mold for processing hollow handle.
Background technology
Gas assisted molding refer to plastic cement be filled to die cavity suitable when (general 75%~99.9%), inject inertia high pressure
Nitrogen, is continued to be filled with die cavity by gas push melting plastic cement, replaces a kind of injection of plastic cement pressure maintaining period with gas pressurize
Forming technique.Because this technology has, materials save (saving rate is up to 40%), (internal stress is low, no contracts in surface for plastic quality better
Trace), the with short production cycle and low remarkable advantage of production cost, be widely used in hollow, stick-like, plate-like piece at present
Or during material thickness ununiformity, shaping area and volume produce compared with the injection of big class product.Hollow handle is a kind of applicable gas assisted molding skill
The moulding of art, as shown in figure 4, it includes bending grip body 1' of hollow and the entity connection taking shape in grip body two ends
Portion 2'.The existing gas-assist mold producing handle generally comprises oil cylinder, air flue and air tube, and air tube connects air flue, hydraulic oil cylinder driving air tube;
First air tube is exited by die cavity by oil cylinder after dividing mould, then by ejecting mechanism, plastic is ejected.Produced shown in Fig. 4 using this mould
During product, the production cycle is longer, and mould structure is complicated and cost of manufacture is higher;It is necessary to develop that a nested structure is simple, demoulding side
Just hollow handle gas-assist mold.
Utility model content
For the problems referred to above, this utility model provides the hollow handle gas-assist mold that a kind of structure is simple, be convenient in demoulding,
In this gas-assist mold, the gentle needle assembly of air flue is installed in moving platen, and the length bearing of trend of air tube assembly is parallel to top
Air tube assembly need not be exited the smooth ejection that die cavity can achieve product during the demoulding by the ejection direction of pin, simplifies mould knot
Structure, reduces production cost.And, because gas injection point is arranged on crossing between grip body and connecting portion in hollow handle
Place, this position neither affects product appearance, is also not subject to primary outer load, and gas injection port can also be made to cross connecting portion, it is to avoid
During nitrogen injection, the molding of connecting portion is impacted.
The gas-assist mold that this utility model provides for realizing its technique effect is: a kind of gas for processing hollow handle
Auxiliary mould, including dynamic model and cover half, cover half includes the cover half panel being fastenedly connected and solid plate, and cover half panel and solid plate set
It is equipped with die casting system;Dynamic model includes moving clamping plate, moving platen, thimble panel and Ejector Retainer Plate, moving clamping plate and moving platen
It is fastenedly connected by square iron and form ejector retainner plate accommodation space, thimble panel and Ejector Retainer Plate and moving clamping plate and moving platen between
Between be tightly connected with and be simultaneously attached in ejector retainner plate accommodation space;Thimble, moving die bottom are provided with Ejector Retainer Plate
Offer on plate for through top rod top rod hole, moving platen is provided with cooling system it is characterised in that: also set on moving platen
It is equipped with air tube assembly and air flue;Air flue is included parallel to the horizontal component of dynamic model plate surface and perpendicular to dynamic model plate surface
Vertical portion;Interconnect successively between air tube assembly, vertical portion air flue and horizontal component air flue, horizontal component air flue
Opening is connected to elevated pressure nitrogen source of the gas;The gas injection port of air tube assembly is arranged on the intersection of handle grip body and connecting portion, air tube
The length bearing of trend of assembly is parallel to the ejection direction of thimble.
Further, in the gas-assist mold for processing hollow handle that this utility model provides, air tube assembly includes gas
Nook closing member and the air tube set for encapsulating air tube core;Set up by internal and external threads between air tube core and air tube set and be fastenedly connected;Air tube
Cover and offer external screw thread for the one end connecting vertical portion air flue, the one end for stretching into mold cavity is provided with pullover spiral shell
Female.The gas injection port of air tube assembly is arranged near the cast gate of die casting system, and, cast gate and gas injection port are in handle-type
The same one end in chamber.Preferably, it is additionally provided with, between air tube set and vertical portion air flue, the sealing ring that gas leakage can be prevented.
The beneficial technique effect of this utility model: 1, air flue and air tube assembly are arranged in moving platen, the length of air tube assembly
Degree bearing of trend can be synchronized with the movement with dynamic model parallel to the ejection direction of thimble, a point mould seasonal epidemic pathogens needle assembly, will not be to plastic
Ejection impacts.Simplify the structure of existing handle gas-assist mold, saved cylinder part, reduced production cost.2nd, gas
The gas injection port of needle assembly is arranged on the intersection of handle grip body and connecting portion, does not affect the appearance of plastic, acceptable
The impact causing when reducing gas injection port to entity connection shaping.3rd, gas injection port is arranged near the cast gate of die casting system,
The penetration direction of gas is consistent with the flow direction of melt.4th, between the gentle needle guard of air tube core and air tube set with vertical portion gas
Set up sealing and be fastenedly connected by screw thread cooperation between road, overhaul, easy to maintenance.The technical scheme setting up sealing ring can enter one
Step improves the sealing property of the auxiliary part of gas.
Gas-assist mold this utility model being provided below in conjunction with Figure of description and specific embodiment describes in detail.
Brief description
Fig. 1: for processing the schematic cross-section of hollow handle gas-assist mold;
The structural representation of dynamic model part in Fig. 2: Fig. 1;
The explosive view of air tube assembly in Fig. 3: Fig. 1;
The structural representation of Fig. 4: hollow handle;
Wherein: 1- cover half panel, 2- solid plate, 3- moving platen, 4- moving clamping plate, 5- square iron, 6- thimble panel, 7- thimble
Base plate, 8- thimble, 9- pushes up rod hole, 10- air tube assembly, 11- air flue, 12- sealing ring, 13- running gate system, 14- cooling system;
101- air tube core, 102- air tube set;
1011- block head, 1012- air tube head boss;
1021- torx nut, 1022- air tube covers convex edge.
Specific embodiment
See Fig. 1-Fig. 2, the hollow handle gas-assist mold being related in preferred embodiment is a mould double caves structure, and it includes dynamic model
Part and cover half part;Cover half part includes cover half panel 1 and solid plate 2, is fastenedly connected between two parts, cover half panel 1 He
Die casting system 13 is provided with solid plate 2.Dynamic model part include moving platen 3, moving clamping plate 4, square iron 5, thimble panel 6 and
Ejector Retainer Plate 7;Moving platen 3 is passed through square iron 5 and is fastenedly connected with moving clamping plate 4 foundation, and between moving platen 3 and moving clamping plate 4
Form ejector retainner plate accommodation space;Set up by screw between thimble panel 6 and Ejector Retainer Plate 7 and be fastenedly connected, and be simultaneously attached to
In ejector retainner plate accommodation space;Ejector Retainer Plate 7 is fastenedly connected with thimble 8 near moving clamping plate 4, the side of Ejector Retainer Plate 7;Moving die bottom
Offer on plate 4 for the top rod hole 9 through top rod.
Two air flues 11 independent mutually are provided with moving platen 3, two air flues 11 are respectively used to inflate for two die cavitys.
Every air flue all includes interpenetrating between horizontal component and vertical portion and two parts air flue.It is additionally provided with two on moving platen 3
Set air tube assembly 10, often set air tube assembly 10 is corresponding to an air flue 11.See Fig. 3, air tube assembly 10 includes air tube core 101 and gas
Needle guard 102, air tube core 101 is arranged in air tube set 102 by the cooperation of internal and external threads.Air tube core 101 includes diameter wider section
With diameter thinner section, two sections of intersection is formed with air tube core boss 1012.All process on diameter wider section and diameter thinner section
There is flat position (namely: the cross sectional shape of diameter wider section and diameter thinner section is waist type), this flat position is joined for gentle needle guard 102
Close to form the gap for nitrogen circulation.External screw thread for connecting air tube set 102, diameter are additionally provided with diameter wider section
The end of thinner section is provided with the block head 1011 for preventing air tube assembly 10 blocking.Air tube set 102 generally cylinder knot
Structure, inside offers shoulder hole, and the size in diameter thinner section hole of shoulder hole and length are thinner corresponding to the diameter of air tube core 101
Section, the size in diameter wider section hole of shoulder hole and length correspond to the diameter wider section of air tube core 101;Diameter thinner section hole and
The intermediate location in diameter wider section hole is formed with air tube set convex edge 1022, and this air tube set convex edge 1022 is used for gentle nook closing member boss
1012 cooperations are blown air tube set 102 to prevent air tube core 101.Air tube set 102 is used for setting to one end of gas injection in mold cavity
It is equipped with torx nut 1021, one end that air tube set 102 is used for connecting vertical portion air flue offers external screw thread.During assembling, by gas
Nook closing member 101 screws in air tube set 102, until air tube core boss 1012 is resisted against on air tube set convex edge 1022, now air tube core diameter
Thinner section penetrates air tube set diameter compared with segment in the hole, and air tube core diameter wider section penetrates air tube set diameter wider section in the hole, air tube
The end face of torx nut 1021 is exposed in partly flat position on core 101 diameter thinner section, is formed between the gentle needle guard of air tube core
Gap completes air flue to mold cavity.Air tube set 102 is set up sealing by screw thread cooperation with vertical portion air flue and is fastenedly connected,
It is additionally provided with the sealing ring 12 for anti-locking system gas leakage between air tube set 102 and vertical portion air flue.
See Fig. 4, the gas injection port (corresponding to 10' position) of air tube assembly 10 is arranged near the cast gate of die casting system
(corresponding to 13' position), and, cast gate 13' and gas injection port 10' is in same one end of handle die cavity, the penetration direction of gas
Consistent with the flow direction of melt.Gas injection port 10' is located at the transition position between grip body 1' and its one end connecting portion 2', this portion
Position stress during handle uses is less, and is adjacent to handle installed surface, does not interfere with the outward appearance of product, also will not be to handle
The molding of connecting portion brings impact.Air tube assembly 10 and air flue 11 are arranged in moving platen, divide and can do together with dynamic model during mould
Step motion, and, because the length bearing of trend of air tube assembly 10 is parallel to the ejection direction of thimble, first will not need during ejection
Air tube assembly 10 exits die cavity, and the handle after molding can smoothly be ejected die cavity by once ejection.Structure is simple, and mould development becomes
This is low, and injection efficiency is high.
It is between air tube assembly 10 and moving platen 3 and between the gentle needle guard 102 of air tube core 101 and threaded, install,
Safeguard very convenient;And, the end due to air tube head 101 is provided with block head, this gas-assist mold also have be not easy blocking,
The low feature of fault rate.
Claims (4)
1. a kind of gas-assist mold for processing hollow handle, including dynamic model and cover half, what described cover half included being fastenedly connected determines
Die face plate and solid plate, described cover half panel and solid plate are provided with die casting system;Described dynamic model include moving clamping plate,
Moving platen, square iron, thimble panel and Ejector Retainer Plate, described moving clamping plate and moving platen are fastenedly connected by square iron and in moving die bottom
Form ejector retainner plate accommodation space, described thimble panel and Ejector Retainer Plate are integral and simultaneously by fastened by screw between plate and moving platen
It is arranged in described ejector retainner plate accommodation space;Be provided with thimble on described Ejector Retainer Plate, described moving clamping plate offers for
Pass through the top rod hole of top rod;Be provided with cooling system on described moving platen it is characterised in that: be additionally provided with gas on described moving platen
Needle assembly and air flue;Described air flue is included parallel to the horizontal component of described dynamic model plate surface and perpendicular to described moving platen
The vertical portion on surface;Interconnect successively between described air tube assembly, vertical portion air flue and horizontal component air flue, described
The opening of horizontal component air flue is connected to elevated pressure nitrogen source of the gas;The gas injection port of described air tube assembly is arranged on handle grip body and company
The intersection of socket part, the length bearing of trend of described air tube assembly is parallel to the ejection direction of described thimble.
2. the gas-assist mold for processing hollow handle according to claim 1 it is characterised in that: described air tube assembly
Gas injection port is arranged near the cast gate of described die casting system, and, described cast gate and gas injection port are respectively positioned on handle die cavity
Same one end.
3. the gas-assist mold for processing hollow handle according to claim 1 it is characterised in that: described air tube assembly bag
Include air tube core and the air tube set for encapsulating air tube core;Described air tube core includes diameter wider section and diameter thinner section, two sections
Intersection is formed with air tube core boss;All it is machined with flat position, described diameter on described diameter wider section and described diameter thinner section
External screw thread for connecting air tube set is additionally provided with wider section, the end of described diameter thinner section is provided with for preventing air tube
The block head of assembly blocking;Described air tube set generally cylindrical structure, inside offers shoulder hole, and the diameter of this shoulder hole is relatively
The size in thin segment hole and length correspond to diameter thinner section, the size in diameter wider section hole of shoulder hole and the length phase of air tube core
Should be in the diameter wider section of air tube core;The intermediate location in diameter thinner section hole and diameter wider section hole is formed with air tube set convex edge;
Air tube covers and the one end to gas injection in mold cavity is provided with torx nut, air tube cover for connect vertical portion air flue one
End offers external screw thread;During assembling, described air tube core is screwed in described air tube set, until described air tube core boss be resisted against described
On air tube set convex edge, now the end face of torx nut is exposed in the partly flat position on described air tube core diameter thinner section, is formed from institute
State the gap between air tube core and described air tube set to the complete air flue of mold cavity.
4. the gas-assist mold for processing hollow handle according to claim 3 it is characterised in that: described air tube set and institute
State to be additionally provided between vertical portion air flue and can prevent the sealing ring of gas leakage.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201620721669.4U CN205915621U (en) | 2016-07-08 | 2016-07-08 | A gas assistance mould for processing cavity handle |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201620721669.4U CN205915621U (en) | 2016-07-08 | 2016-07-08 | A gas assistance mould for processing cavity handle |
Publications (1)
Publication Number | Publication Date |
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CN205915621U true CN205915621U (en) | 2017-02-01 |
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Application Number | Title | Priority Date | Filing Date |
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CN201620721669.4U Expired - Fee Related CN205915621U (en) | 2016-07-08 | 2016-07-08 | A gas assistance mould for processing cavity handle |
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CN (1) | CN205915621U (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107263809A (en) * | 2017-08-02 | 2017-10-20 | 象山宁越模具有限公司 | A kind of processing technology of inside door handle mould and its mould |
-
2016
- 2016-07-08 CN CN201620721669.4U patent/CN205915621U/en not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107263809A (en) * | 2017-08-02 | 2017-10-20 | 象山宁越模具有限公司 | A kind of processing technology of inside door handle mould and its mould |
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Legal Events
Date | Code | Title | Description |
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C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170201 Termination date: 20180708 |
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CF01 | Termination of patent right due to non-payment of annual fee |