CN205112276U - Thin -walled special -shaped piece's injection moulding mould - Google Patents
Thin -walled special -shaped piece's injection moulding mould Download PDFInfo
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- CN205112276U CN205112276U CN201520615719.6U CN201520615719U CN205112276U CN 205112276 U CN205112276 U CN 205112276U CN 201520615719 U CN201520615719 U CN 201520615719U CN 205112276 U CN205112276 U CN 205112276U
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Abstract
The utility model provides a thin -walled special -shaped piece's injection moulding mould, fully consider the structural characteristic of vulcanization and blending, the goods of silicon rubber after, injection moulding mold gate's position distribution, quantity and shape design carry out, accomplish injection moulding mould runner design according to the technical characterstic of runner. Can realize the preparation to silicon rubber thin -walled special -shaped piece rubber component through equitable runner and runner design, avoid silicon rubber the prevulcanization to appear at the in -process that fills the mould, choke with resentment and phenomenon such as goods inhomogeneity of wall thickness, prepare out the silicon rubber thin -walled special -shaped piece goods that outward appearance and structure size all satisfy drawing and acceptance requirement.
Description
Technical field
The utility model relates to thin wall special-shaped part sealing article mould structure design field, the particularly injecting molding die of thin wall special-shaped part.
Background technology
The sulfidization molding of current silicon rubber thin-walled shaped piece goods generally adopts technique to be die press technology for forming, and equipment is vulcanizing press, and mould is molding die.Forming die structure for moulding is relatively simple, adopts the manual method of loading rubber blank in mold cavity of operative employee after patrix and counterdie die sinking.Concrete method is: 1. the roll sizing material back mixing slice on opening rubber mixing machine will mixed, by the THICKNESS CONTROL of slice at about 2mm; 2. with cut-off knife tablet-type gum cut into the size and shape of fitting with mold cavity; 3. the blank scales/electronic balance weighing will cut, controls the stability of rubber blank weight that will load, otherwise there will be because of each mould product cause product not thick because loadings uniformity difference uneven; 4. after rubber blank hand-filling being entered mold cavity, matched moulds completes the filling of glue amount.The sizing material mold filling of compression molding die may be summarized to be: the mold filling being completed sizing material after upper and lower mould die sinking by the mode of operator's hand-filling rubber blank, does not have the distinctive cast gate of injecting molding die and runner design technology.The sizing material mold filling of injecting molding die may be summarized to be: automatically injected in the die cavity of mould by runner and cast gate by sizing material by the injection mouth of automatic-ejecting forming machine (injector) after upper and lower mould matched moulds.
By known in sum, the structure of molding die is relatively simple, the manual dependence of mold filling process of sizing material is high, molding die need before sizing material mold filling in advance through back mixing, slice, cut, transport, weigh and the manual multiple tracks preparatory process such as to load in mold cavity, and whole process is carry out in open environment completely, sizing material, parking, cutting and being all easy in weighing process to be infected with impurity, impacts product appearance quality.There is destabilizing factor in hand fixture glue amount, filler amount is too much, and sizing material a large amount of spilling in compression molding process not only can cause excessive overlap, and waterproof jacket wall thickness dimension can be caused overproof, affect accuracy to size, die joint place easily produces dislocation, and easily causes product wall unevenness; Also can increase the difficulty of deburring work in addition, both delay man-hour, and wasted sizing material again.If filler amount is on the low side, goods local starved can be caused, and there is the defects such as trace in surface.Cut by hand and the pressure in mold process in mold cavity also can be caused uneven with the shape of the sheet rubber blank prepared and the uniformity difference of loading position in mold cavity, making edge namely operate ear place starved makes operation ear length degree inadequate, causes the decline of product percent of pass.
Summary of the invention
The purpose of this utility model is the above-mentioned deficiency overcoming prior art, the injecting molding die of thin wall special-shaped part is provided, the injecting molding die cast gate of this thin wall special-shaped part and the structural design of runner improve the filling mold speed of sizing material, avoid the phenomenon that sizing material produces scorching in the process of mold filling.
Above-mentioned purpose of the present utility model is achieved by following technical solution:
The injecting molding die of thin wall special-shaped part, comprises patrix, core rod, counterdie and backing plate, and wherein patrix comprises the first top shoe, the second top shoe, limited block, spring and wins in succession; Counterdie comprises the first sliding block, the second sliding block and lock module; Injecting molding die runner is formed by the horizontal clearance between the through slot of patrix upper surface two grooves in the horizontal direction, inner two vertical direction of patrix, upper die and lower die; When patrix and counterdie matched moulds, form injecting molding die die cavity by location fit, two cast gates are symmetrically distributed in the both sides of injecting molding die die cavity, and each cast gate is positioned at the centre position of injecting molding die die cavity length direction.
At the injecting molding die of above-mentioned thin wall special-shaped part, described upper die and lower die are by core rod location fit; Win in succession for 2 and be fixed on patrix both sides; Counterdie and backing plate are located fixing.
At the injecting molding die of above-mentioned thin wall special-shaped part, respectively there is a limited block first top shoe both sides described in it and the second top shoe both sides, namely totally 4 limited blocks are fixed on patrix, and limited block coordinates with the first top shoe and the second top shoe and achieves vertical direction and fix and be parallel to the axially movable of core rod; First sliding block and adopt the mode of taper fit to fix between the second sliding block and counterdie, the upper surface place of counterdie is provided with 4 lock modules, symmetry is positioned at the outside of the first sliding block and the second sliding block, during die sinking, lock module is withdrawn from from patrix, achieves the first top shoe and the lax of the second top shoe flicks by spring force.
At the injecting molding die of above-mentioned thin wall special-shaped part, described two cast gate cross sections are rectangle, and watering open height is 0.08 ~ 0.10mm, and length is 15 ~ 25mm.
At the injecting molding die of above-mentioned thin wall special-shaped part, sizing material flows to the two ends of injecting molding die die cavity in mold filling process in the middle part of injecting molding die die cavity along direction, the gas in injecting molding die die cavity is discharged along direction by the steam vent at injecting molding die die cavity two ends.
At the injecting molding die of above-mentioned thin wall special-shaped part, glue-feeder is positioned at injecting molding die upper surface center, groove is symmetricly set on glue-feeder both sides in the horizontal direction, and grooves on two sides is communicated with glue-feeder, and the colloid of External infusion branches to both sides from glue-feeder along groove; Flow to the break-in buffering area of mould die joint by the through slot of injecting molding die patrix inner both sides vertical direction, the horizontal clearance along upper die and lower die is communicated with injecting molding die die cavity by cast gate.
At the injecting molding die of above-mentioned thin wall special-shaped part, it is characterized in that: described glue-feeder is hemispherical; The cross section of horizontal direction groove is semicircle; The through slot of vertical direction is turbination; Break-in buffering area is spherical; The cross section of horizontal clearance is half elliptic.
The utility model compared with prior art tool has the following advantages:
(1) the utility model is positioned at the die joint place of thin wall special-shaped part due to gate location, avoids the overlap because pruning thin wall special-shaped part product sprue place and affects the appearance that products appearance quality causes the defective phenomenon of products appearance.
(2) the utility model adopts 2 cast gates and balance runner design that are symmetrically distributed in injection molding die cavity die joint both sides, avoid sizing material to impact the unequal force of core rod in mold filling process, be conducive to the location of core rod, ensure that the uniformity of thin wall special-shaped part product wall thickness size; Improve the filling mold speed of sizing material while shortening the stroke of sizing material mold filling, avoiding the phenomenon that scorching occurs when not completing mold filling sizing material; Be conducive to sizing material, in the process of mold filling, gas discharged mold cavity, avoid thin wall special-shaped part goods and occur choking with resentment phenomenon in surface.
Accompanying drawing explanation
Fig. 1 is the injecting molding die assembling schematic diagram of the utility model thin wall special-shaped part;
Fig. 2 is the injecting molding die patrix upward view of the utility model thin wall special-shaped part;
Fig. 3 is the injecting molding die flow passage structure schematic diagram of the utility model thin wall special-shaped part;
Fig. 4 is the injecting molding die mould parting surface structure design diagram of the utility model thin wall special-shaped part.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail:
Be illustrated in figure 1 the injecting molding die assembling schematic diagram of the utility model thin wall special-shaped part, comprise patrix 1, core rod 2, counterdie 3 and backing plate 4, wherein patrix 1 comprises the first top shoe 5, second top shoe 6, limited block 9, spring 10 and wins 15 in succession; Counterdie 3 comprises the first sliding block 7, second sliding block 8 and lock module 11; Respectively there is a limited block 9 first top shoe 5 both sides and the second top shoe 6 both sides, namely totally 4 limited blocks 9 are fixed on patrix 1 by limited block screw 14, and limited block 9 coordinates with the first top shoe 5 and the second top shoe 6 and achieves vertical direction and fix and be parallel to the axially movable of core rod 2; First sliding block 7 and adopt the mode of taper fit to fix between the second sliding block 8 and counterdie 3, the upper surface place of counterdie 3 is provided with 4 lock modules 11, symmetry is positioned at the outside of the first sliding block 7 and the second sliding block 8, during die sinking, lock module 11 is withdrawn from from patrix 1, achieves the first top shoe 5 and the second the lax of top shoe 6 flicks by spring 10 elastic force.
Be illustrated in figure 2 the injecting molding die patrix upward view of the utility model thin wall special-shaped part, win in succession and 15 be fixed on patrix 1 both sides for 2 as shown in the figure; Counterdie 3 and backing plate 4 are located fixing.
Be illustrated in figure 3 the injecting molding die flow passage structure schematic diagram of the utility model thin wall special-shaped part, form injecting molding die runner by patrix 1 upper surface two grooves 19 in the horizontal direction, the inner through slot 20 of two vertical direction of patrix 1, the horizontal clearance 21 between patrix 1 and counterdie 3 as shown in the figure; When patrix 1 and counterdie 3 matched moulds, injecting molding die die cavity 12 is formed by location fit, two cast gates 13 are symmetrically distributed in the both sides of injecting molding die die cavity 12, this symmetrical mode effectively prevent sizing material produces impulsive force in mold filling process unbalanced asymmetry to core rod, be conducive to the precise positioning of core rod in injecting molding die die cavity, thus ensure that the uniformity of thin wall special-shaped part product wall thickness size.
And each cast gate 13 is positioned at the centre position of injecting molding die die cavity 12 length direction 23, two cast gate 13 cross sections are rectangle, cast gate 13 is highly 0.08 ~ 0.10mm, length is 15 ~ 25mm, what the design of this cast gate 13 added cast gate 13 position enters glue amount, improve the filling mold speed of sizing material, avoid the phenomenon that sizing material produces scorching in the process of mold filling, and after goods sulfuration sizing, can realize removing the operation of goods die joint and gate location overlap by manual torn edges simultaneously and the presentation quality of product sprue position can not be destroyed, eliminate the pruning operation (pruning with knife blade or surgical scissors) of sizing material overlap, avoid the products appearance defect caused because of the sizing material overlap of pruning product sprue position, ensure that the appearance requirement of goods entirety.
The injection nozzle 16 of automatic-ejecting forming machine is aimed at and is contacted the glue-feeder 17 of injecting molding die upper surface, vertically 18 to injecting molding die injection silicon rubber, silicon rubber glue-feeder 17 is positioned at injecting molding die upper surface center, groove 19 is symmetricly set on glue-feeder 17 both sides in the horizontal direction, grooves on two sides 19 is communicated with glue-feeder 17, and the colloid of External infusion branches to both sides from glue-feeder 17 along groove 19; Flow to the break-in buffering area 22 of mould die joint by the through slot 20 of injecting molding die patrix 1 inner both sides vertical direction, be communicated with injecting molding die die cavity 12 with the horizontal clearance 21 of counterdie 3 by cast gate 13 along patrix 1.
Flow to the break-in buffering area 22 of mould die joint by the through slot 20 of injecting molding die patrix 1 inner both sides vertical direction, be communicated with injecting molding die die cavity 12 with the horizontal clearance 21 of counterdie 3 by cast gate 13 along patrix 1; Wherein, described glue-feeder 17 is hemispherical; The cross section of horizontal direction groove 19 is semicircle; The through slot 20 of vertical direction is turbination; Break-in buffering area 22 is spherical; The cross section of horizontal clearance 21 is half elliptic; This runner design is convenient to be removed the cull of vertical runners 20 inside of injecting molding die upper surface horizontal flow road 19 and injecting molding die patrix inner both sides vertical direction after sulfuration completes die sinking, and the cull in runner can be realized whole removing from the upper surface overall pull-out in the other direction of patrix.
Be illustrated in figure 4 the injecting molding die mould parting surface structure design diagram of the utility model thin wall special-shaped part, sizing material flows to the two ends of injecting molding die die cavity 12 in mold filling process in the middle part of injecting molding die die cavity 12 along direction 23 as shown in the figure, gas in injecting molding die die cavity 12 is discharged along direction 24 by the steam vent 25 at injecting molding die die cavity 12 two ends, effectively prevent thin wall special-shaped part goods to occur choking with resentment phenomenon and affect the presentation quality of goods, the mold filling stroke of sizing material is shortened one times simultaneously, avoid the phenomenon that sizing material produces scorching in the process of mold filling.
The content be not described in detail in description of the present invention belongs to the known technology of those skilled in the art.
Claims (7)
1. the injecting molding die of thin wall special-shaped part, it is characterized in that: comprise patrix (1), core rod (2), counterdie (3) and backing plate (4), wherein patrix (1) comprises the first top shoe (5), the second top shoe (6), limited block (9), spring (10) and win in succession (15); Counterdie (3) comprises the first sliding block (7), the second sliding block (8) and lock module (11); Injecting molding die runner is formed by patrix (1) upper surface two grooves (19) in the horizontal direction, the inner through slot (20) of two vertical direction of patrix (1), the horizontal clearance (21) between patrix (1) and counterdie (3); When patrix (1) and counterdie (3) matched moulds, injecting molding die die cavity (12) is formed by location fit, two cast gates (13) are symmetrically distributed in the both sides of injecting molding die die cavity (12), and each cast gate (13) is positioned at the centre position of injecting molding die die cavity (12) length direction (23).
2. the injecting molding die of thin wall special-shaped part according to claim 1, is characterized in that: patrix (1) and counterdie (3) are by core rod (2) location fit; 2 win in succession (15) are fixed on patrix (1) both sides; Counterdie (3) and backing plate (4) are located fixing.
3. the injecting molding die of thin wall special-shaped part according to claim 1, it is characterized in that: respectively there is a limited block (9) the first top shoe (5) both sides and the second top shoe (6) both sides, namely totally 4 limited blocks (9) are fixed on patrix (1), and limited block (9) coordinates with the first top shoe (5) and the second top shoe (6) and achieves vertical direction and fix and be parallel to the axially movable of core rod (2); First sliding block (7) and adopt the mode of taper fit to fix between the second sliding block (8) and counterdie (3), the upper surface place of counterdie (3) is provided with 4 lock modules (11), symmetry is positioned at the outside of the first sliding block (7) and the second sliding block (8), during die sinking, lock module (11) is withdrawn from from patrix (1), is achieved lax the flicking of the first top shoe (5) and the second top shoe (6) by spring (10) elastic force.
4. the injecting molding die of thin wall special-shaped part according to claim 1, is characterized in that: two cast gate (13) cross sections are rectangle, and cast gate (13) is highly 0.08 ~ 0.10mm, and length is 15 ~ 25mm.
5. the injecting molding die of thin wall special-shaped part according to claim 1, it is characterized in that: sizing material to flow to the two ends of injecting molding die die cavity (12) in mold filling process along direction (23) from injecting molding die die cavity (12) middle part, the gas in injecting molding die die cavity (12) is discharged along direction (24) steam vent (25) by injecting molding die die cavity (12) two ends.
6. the injecting molding die of thin wall special-shaped part according to claim 1, it is characterized in that: glue-feeder (17) is positioned at injecting molding die upper surface center, groove (19) is symmetricly set on glue-feeder (17) both sides in the horizontal direction, grooves on two sides (19) is communicated with glue-feeder (17), and the colloid of External infusion branches to both sides from glue-feeder (17) along groove (19); Flow to the break-in buffering area (22) of mould die joint by the through slot (20) of injecting molding die patrix (1) inner both sides vertical direction, be communicated with injecting molding die die cavity (12) with the horizontal clearance (21) of counterdie (3) by cast gate (13) along patrix (1).
7. the injecting molding die of thin wall special-shaped part according to claim 6, is characterized in that: described glue-feeder (17) is hemispherical; The cross section of horizontal direction groove (19) is semicircle; The through slot (20) of vertical direction is turbination; Break-in buffering area (22) is for spherical; The cross section of horizontal clearance (21) is half elliptic.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520615719.6U CN205112276U (en) | 2015-08-14 | 2015-08-14 | Thin -walled special -shaped piece's injection moulding mould |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520615719.6U CN205112276U (en) | 2015-08-14 | 2015-08-14 | Thin -walled special -shaped piece's injection moulding mould |
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| CN205112276U true CN205112276U (en) | 2016-03-30 |
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| CN201520615719.6U Active CN205112276U (en) | 2015-08-14 | 2015-08-14 | Thin -walled special -shaped piece's injection moulding mould |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106003539A (en) * | 2016-05-17 | 2016-10-12 | 广东赛普电器制造有限公司 | Injection molding process for bulk molding compound (BMC) material |
| CN110341104A (en) * | 2019-07-29 | 2019-10-18 | 贵州华烽电器有限公司 | A kind of the manufacture mold and manufacturing method of ladder-like circular thin-wall dirt-proof boot |
| CN111300833A (en) * | 2019-11-29 | 2020-06-19 | 南京金三力橡塑有限公司 | Hydrogenated nitrile rubber PCV valve diaphragm forming die for automobile and processing method |
| CN116512532A (en) * | 2023-06-26 | 2023-08-01 | 济南源宇电子科技有限公司 | Injection mold for puncture core rod, injection molding method and puncture core rod |
| CN118514276A (en) * | 2024-07-23 | 2024-08-20 | 四川省安利康医疗用品有限公司 | Forming device for catheter production and using method thereof |
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2015
- 2015-08-14 CN CN201520615719.6U patent/CN205112276U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106003539A (en) * | 2016-05-17 | 2016-10-12 | 广东赛普电器制造有限公司 | Injection molding process for bulk molding compound (BMC) material |
| CN110341104A (en) * | 2019-07-29 | 2019-10-18 | 贵州华烽电器有限公司 | A kind of the manufacture mold and manufacturing method of ladder-like circular thin-wall dirt-proof boot |
| CN111300833A (en) * | 2019-11-29 | 2020-06-19 | 南京金三力橡塑有限公司 | Hydrogenated nitrile rubber PCV valve diaphragm forming die for automobile and processing method |
| CN116512532A (en) * | 2023-06-26 | 2023-08-01 | 济南源宇电子科技有限公司 | Injection mold for puncture core rod, injection molding method and puncture core rod |
| CN116512532B (en) * | 2023-06-26 | 2023-09-26 | 济南源宇电子科技有限公司 | Injection mold for puncture core rod, injection molding method and puncture core rod |
| CN118514276A (en) * | 2024-07-23 | 2024-08-20 | 四川省安利康医疗用品有限公司 | Forming device for catheter production and using method thereof |
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