CN103085235A - Novel total heat channel needle cylinder mould - Google Patents

Novel total heat channel needle cylinder mould Download PDF

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Publication number
CN103085235A
CN103085235A CN201310059962XA CN201310059962A CN103085235A CN 103085235 A CN103085235 A CN 103085235A CN 201310059962X A CN201310059962X A CN 201310059962XA CN 201310059962 A CN201310059962 A CN 201310059962A CN 103085235 A CN103085235 A CN 103085235A
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CN
China
Prior art keywords
die cavity
cavity
die
interior core
mold insert
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CN201310059962XA
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Chinese (zh)
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CN103085235B (en
Inventor
曾智
张扬明
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成都市联余精密机械有限公司
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Priority to CN201310059962.XA priority Critical patent/CN103085235B/en
Publication of CN103085235A publication Critical patent/CN103085235A/en
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Publication of CN103085235B publication Critical patent/CN103085235B/en

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Abstract

The invention relates to a novel total heat channel needle cylinder mould which comprises a sprue mould core (1), a sectional cavity (2), an inner sectional core (6), a pushing ring (5), bushing type sectional cavity tops (3), inserters (4) of the sectional cavity tops, and an inner sectional core insert (7), wherein the centre of the sectional cavity (2) is provided with a shunting channel (9), the bottom of the shunting channel (9) is provided with a rubber feed opening, the multiple bushing type sectional cavity tops (3) are arranged on the sectional cavity (2), the inserters (4) of the sectional cavity tops are installed on the centers of the bushing type sectional cavity tops (3), the inner sectional core (6) is arranged below the bushing type sectional cavity tops (3), the inner sectional core insert (7) is matched with the inserters (4) of the sectional cavity tops, a straight cylinder part of the inner sectional core (6) is matched with the sectional cavity (2), a conical cylinder part of the inner sectional core (6) is matched with the pushing ring (5), and the top part of the pushing ring (5) is matched with the sprue mould core (1). The novel total heat channel needle cylinder mould disclosed by the invention has the advantages of small overall size, low cost, convenience for maintenance, long service life and high product quality.

Description

A kind of novel full hot flow path syringe mould
Technical field
The present invention relates to a kind of injector needle cylinder moulding mould, particularly a kind of novel full hot flow path syringe mould.
Background technology
What at present domestic traditional multi-cavity syringe mould adopted is cold runner die, hot runner mould has just just entered the research and development advanced development, waste material causes production cost to improve more owing to producing product, and die manufacturing cost and maintenance cost very high, can not satisfy the demand that the user saves cost far away.external most advanced level namely adopts mould two chamber hot runner structures, the square die of the many employings of forming part, such structure makes the overall dimension of mould larger, and needs use dowel hole and taper hole on high-precision jig grinder processing die, require extremely accurate machine tooling can reach its design accuracy, cost increases relatively, the Mould Machining cycle is long, it advances the glue mode and advances glue for side blow radially, advance the glue point and be distributed in approximately 5mm position, needle cylinder wall bottom, nozzle flow channel must break-in 90 ° from axially being converted into radially, the pouring pressure loss is large, energy consumption is large, and mould stream inequality easily produces weld mark and affects the product appearance quality on the barrel of cast gate opposite, this pouring type also easily causes the product wall unevenness and affects the product inherent quality.In addition, injection orifice molding structure employing die cavity top, syringe top pin structure, this structure is unfavorable for that exhaust is that secondly more seriously pin hole in core top is easy to wear when matched moulds, thereby directly causes maintenance cost to increase.
Summary of the invention
The object of the invention is to overcome the shortcoming of prior art, provide that a kind of mould overall dimension is little, cost is low, a kind of novel full hot flow path syringe mould of easy to maintenance, long service life and good product quality, the position by improving gum-injecting port and exhaust mode are to provide best mould flow point cloth to improve quality inside and outside product.
purpose of the present invention is achieved through the following technical solutions: a kind of novel full hot flow path syringe mould, it comprises the cast gate die, die cavity, interior core, throw-out collar, edge shell type die cavity top, die cavity top mold insert and interior core mold insert, the cast gate die coordinate with die cavity and at right angle setting inner in cavity plate, the center of die cavity offers runner, the bottom of runner is provided with glue-feeder, being provided with a plurality of edge shell type die cavities on the same circumference on the top of die cavity pushes up, the center on edge shell type die cavity top is set with die cavity top mold insert, the below on edge shell type die cavity top is provided with interior core, the top of interior core is gluedd joint into whole with the bottom of interior core mold insert, the top of interior core mold insert coordinates with die cavity top mold insert, the top of interior core is straight tube shape, the middle part of interior core is cone barrel, the straight drum part of interior core coordinates with die cavity, the cone cylinder part of interior core is connected with the inwall of throw-out collar, the top of throw-out collar and cast gate die are connected, the inside of interior core is provided with cooling-water duct.
Described cast gate die and die cavity adopt pin to locate, and are screwed.
Be symmetrically arranged with respectively at least two die cavity top screwed holes and at least two die cavity top locating holes on the end face on described edge shell type die cavity top.
Be provided with a plurality of die cavities on described cavity plate.
The external diameter of described cast gate die is less than the external diameter of die cavity.
The present invention has the following advantages:
1, the present invention adopts mould four cavity configurations, be to be provided with in each cast gate die along circumferential equally distributed four interior cores, form four shaping mold cavities, be combined to form the syringe cavity with four edge shell type die cavities tops, die cavity top mold insert, interior core mold insert respectively again, advance glue by glue-feeder, four products of a die cavity pipe, the energy that consumes reduces more than 40%, and shaping mold cavity is arranged compactness, the size reduction of cavity plate.
2, cost hangs down and is mainly reflected in two aspects: be low cost of manufacture on the one hand, mould four cavity configurations are compact, and the raw material that cavity plate and cast gate die use are few; That maintenance cost is low on the other hand, top at inside, edge shell type die cavity top and interior core studs with respectively die cavity top mold insert and interior core mold insert, core in is transferred to interior core mold insert to the wearing and tearing of die cavity top mold insert to the wearing and tearing on die cavity top, interior core mold insert and die cavity top mold insert volume are little, and maintenance cost is low.
3, this mould four cavity configurations, the external diameter of cast gate die is less than the external diameter of die cavity, and the dismounting simple and fast is easy to maintenance.
4, the critical piece wearing and tearing of the moulds such as cavity plate, cast gate die, edge shell type die cavity top and interior core are little, and remaining consumable accessory is removable parts, and the mold use life-span increases substantially.
5, advance glue point and advance the glue mode and can make in casting process mould stream evenly, the gas that molding cavity inside forms in casting process is the upwards air discharge duct discharge to the end face by the steam vent in the edge shell type die cavity top at top from the bottom, thereby avoided the defectives such as weld mark, bubble, product size be unstable, greatly improved the product appearance quality.This structure advance glue point directly by bottom glue-feeding, avoided conventional and advanced from sidewall the defectives such as product wall unevenness that glue causes, greatly improved product quality.
Description of drawings
Fig. 1 is the complete section structural representation of die cavity;
Fig. 2 is the plan structure schematic diagram of die cavity;
Fig. 3 is the amplification plan structure schematic diagram on edge shell type die cavity top;
Fig. 4 is the B-B cross-sectional schematic of Fig. 3;
Fig. 5 is the arrangement schematic diagram of die cavity on cavity plate;
In figure: 1-cast gate die, 2-die cavity, 3-edge shell type die cavity top, 4-die cavity top mold insert, core mold insert in core in 5-throw-out collar, 6-, 7-, 8-glue-feeder, 9-runner, 10-cavity plate, 11-die cavity top screwed hole, 12-die cavity top locating hole, 13-cooling-water duct.
The specific embodiment
The present invention will be further described below in conjunction with accompanying drawing, but protection scope of the present invention is not limited to the following stated.
as depicted in figs. 1 and 2, a kind of novel full hot flow path syringe mould, it comprises cast gate die 1, die cavity 2, interior core 6, throw-out collar 5, edge shell type die cavity top 3, die cavity top mold insert 4 and interior core mold insert 7, cast gate die 1 coordinate with die cavity 2 and at right angle setting in cavity plate 10 inside, the center of die cavity 2 offers runner 9, the bottom of runner 9 is provided with glue-feeder 8, be provided with a plurality of edge shell type die cavities on the same circumference on the top of die cavity 2 and push up 3, the center on edge shell type die cavity top 3 is set with die cavity top mold insert 4, the below on edge shell type die cavity top 3 is provided with interior core 6, the top of interior core 6 is gluedd joint into whole with the bottom of interior core mold insert 7, the top of interior core mold insert 7 coordinates with die cavity top mold insert 4, the top of interior core 6 is straight tube shape, the middle part of interior core 6 is cone barrel, the straight drum part of interior core 6 coordinates with die cavity 2, the cone cylinder part of interior core 6 is connected with the inwall of throw-out collar 5, the top of throw-out collar 5 and cast gate die 1 are connected, the inside of interior core 6 is provided with cooling-water duct 13, cast gate die 1 adopts pin to locate with die cavity 2, and is screwed, and the external diameter of cast gate die 1 is less than the external diameter of die cavity 2.
As shown in Figure 3 and Figure 4, be symmetrically arranged with respectively at least two die cavity top screwed holes 11 and at least two die cavity top locating holes 12 on the end face on edge shell type die cavity top 3.
As shown in Figure 5, be provided with a plurality of die cavities 2 on cavity plate 10.
Main moulding die is comprised of cast gate die 1, die cavity 2, throw-out collar 5, and cast gate die 1 and die cavity 2 are packed in cavity plate 10 simultaneously, is connected to each other to adopt the pin hole location, and screw connects, and installs and maintenance for convenient, and the external diameter of cast gate die 1 is less than the external diameter of die cavity.For intensity and the rigidity that improves cast gate die 1, cast gate die 1 is fitted fully with throw-out collar 5.Circumferentially design four uniform shaping mold cavities along end face on columniform moulding die, then be combined to form the syringe cavity with four edge shell type die cavities tops 3, die cavity top mold insert 4, interior core 6 and interior core mold insert 7 respectively.Wherein, interior core mold insert 7 glueds joint into an integral body with interior core 6, and the other end of interior core mold insert 7 coordinates with the die cavity top mold insert 4 that is sleeved on 3 inside, edge shell type die cavity top, has effectively avoided 7 pairs of edge shell type die cavities of interior core mold insert to push up 3 wearing and tearing.To the interior injecting material of runner 9, runner 9 bottoms one are divided into four, by gum-injecting port 8 injecting material in the syringe cavity, cooling forming in die cavity 2, form the syringe series products, syringe series products front needle tube portion is by die cavity top 3 and interior core mold insert 7 moulding, after die sinking, throw-out collar 5 along with the motion of push pedal along axially with product from interior core 6 separately, thereby guarantee the smooth demoulding of product.
Adopt the moulding die of mould four cavity configurations, 12 moulding dies can be installed on cavity plate, namely form 48 shaping mold cavities.

Claims (5)

1. novel full hot flow path syringe mould, it is characterized in that: it comprises cast gate die (1), die cavity (2), interior core (6), throw-out collar (5), edge shell type die cavity top (3), die cavity top mold insert (4) and interior core mold insert (7), cast gate die (1) coordinate with die cavity (2) and at right angle setting in cavity plate (10) inside, the center of die cavity (2) offers runner (9), the bottom of runner (9) is provided with glue-feeder (8), be provided with a plurality of edge shell type die cavity tops (3) on the same circumference on the top of die cavity (2), the center on edge shell type die cavity top (3) is set with die cavity top mold insert (4), the below on edge shell type die cavity top (3) is provided with interior core (6), the top of interior core (6) is gluedd joint into whole with the bottom of interior core mold insert (7), the top of interior core mold insert (7) coordinates with die cavity top mold insert (4), the top of interior core (6) is straight tube shape, the middle part of interior core (6) is cone barrel, the straight drum part of interior core (6) coordinates with die cavity (2), the cone cylinder part of interior core (6) is connected with the inwall of throw-out collar (5), the top of throw-out collar (5) and cast gate die (1) are connected, the inside of interior core (6) is provided with cooling-water duct (13).
2. a kind of novel full hot flow path syringe mould according to claim 1 is characterized in that: described cast gate die (1) and die cavity (2) adopt the pin location, and are screwed.
3. a kind of novel full hot flow path syringe mould according to claim 1, is characterized in that: be symmetrically arranged with respectively at least two die cavity top screwed holes (11) and two die cavity top locating holes (12) on the end face on described edge shell type die cavity top (3) at least.
4. a kind of novel full hot flow path syringe mould according to claim 1, is characterized in that: be provided with a plurality of die cavities (2) on described cavity plate (10).
5. a kind of novel full hot flow path syringe mould according to claim 1, it is characterized in that: the external diameter of described cast gate die (1) is less than the external diameter of die cavity (2).
CN201310059962.XA 2013-02-26 2013-02-26 A kind of novel full heat channel needle cylinder mould CN103085235B (en)

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Application Number Priority Date Filing Date Title
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CN103085235A true CN103085235A (en) 2013-05-08
CN103085235B CN103085235B (en) 2016-01-13

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105382966A (en) * 2015-12-02 2016-03-09 温州宏泰模具有限公司 Pen mold core, feeding method of pen mold core and machining mold
CN105922519A (en) * 2016-05-25 2016-09-07 江天精密制造科技(苏州)有限公司 Six-cavity syringe mold
CN107303712A (en) * 2016-04-18 2017-10-31 格雷斯海姆里根斯堡有限公司 For producing the instrument of injection device and method for producing injection device

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201702900U (en) * 2010-05-31 2011-01-12 浙江千禧光塑料模具有限公司 Injector needle cylinder moulding mould
CN201848965U (en) * 2010-08-05 2011-06-01 崇州君健塑胶有限公司 Hot runner plastic injection mould
CN102601931A (en) * 2012-03-10 2012-07-25 苏州雅尔塑业科技有限公司 Injection mold for processing elongated push rod
CN202572824U (en) * 2012-03-10 2012-12-05 苏州雅尔塑业科技有限公司 Injection molding mould for processing long and thin push rod
CN102909829A (en) * 2012-10-26 2013-02-06 浙江千禧光塑料模具有限公司 Full hot runner forming die for injector outer sheath
CN203171962U (en) * 2013-02-26 2013-09-04 成都市联余精密机械有限公司 Novel full hot runner needle cylinder mould

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201702900U (en) * 2010-05-31 2011-01-12 浙江千禧光塑料模具有限公司 Injector needle cylinder moulding mould
CN201848965U (en) * 2010-08-05 2011-06-01 崇州君健塑胶有限公司 Hot runner plastic injection mould
CN102601931A (en) * 2012-03-10 2012-07-25 苏州雅尔塑业科技有限公司 Injection mold for processing elongated push rod
CN202572824U (en) * 2012-03-10 2012-12-05 苏州雅尔塑业科技有限公司 Injection molding mould for processing long and thin push rod
CN102909829A (en) * 2012-10-26 2013-02-06 浙江千禧光塑料模具有限公司 Full hot runner forming die for injector outer sheath
CN203171962U (en) * 2013-02-26 2013-09-04 成都市联余精密机械有限公司 Novel full hot runner needle cylinder mould

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105382966A (en) * 2015-12-02 2016-03-09 温州宏泰模具有限公司 Pen mold core, feeding method of pen mold core and machining mold
CN107303712A (en) * 2016-04-18 2017-10-31 格雷斯海姆里根斯堡有限公司 For producing the instrument of injection device and method for producing injection device
CN105922519A (en) * 2016-05-25 2016-09-07 江天精密制造科技(苏州)有限公司 Six-cavity syringe mold

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