CN202336981U - Secondary demoulding mechanism of pull rod of injection mould - Google Patents

Secondary demoulding mechanism of pull rod of injection mould Download PDF

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Publication number
CN202336981U
CN202336981U CN2011204118555U CN201120411855U CN202336981U CN 202336981 U CN202336981 U CN 202336981U CN 2011204118555 U CN2011204118555 U CN 2011204118555U CN 201120411855 U CN201120411855 U CN 201120411855U CN 202336981 U CN202336981 U CN 202336981U
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CN
China
Prior art keywords
plate
mould
pull bar
block
pull rod
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
CN2011204118555U
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Chinese (zh)
Inventor
李过
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhejiang Kaihua Mould Co Ltd
Original Assignee
Zhejiang Kaihua Mould Co Ltd
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Filing date
Publication date
Application filed by Zhejiang Kaihua Mould Co Ltd filed Critical Zhejiang Kaihua Mould Co Ltd
Priority to CN2011204118555U priority Critical patent/CN202336981U/en
Application granted granted Critical
Publication of CN202336981U publication Critical patent/CN202336981U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model relates to a secondary demoulding mechanism of a pull rod of an injection mould, comprising an upper compound plate and a lower compound plate of the mould. The upper compound plate is connected with a pouring gate plate, a pouring gate sleeve is arranged in the pouring gate plate, the lower compound plate is provided with a mould foot, an upper supporting plate and a lower supporting plate are arranged in the mould foot, the upper supporting plate is connected with a material supporting rod, and a fixing plate is arranged on the mould foot and is provided with a mould core embedded block. The secondary demoulding mechanism is characterized in that the mould core embedded block is movably provided with a mould cavity embedded block, mould cavities are arranged among the mould cavity embedded block, the mould core embedded block and the pouring gate plate and are provided with finished products, a limit groove is arranged in the mould cavity embedded block, the mould core embedded block is provided with a constant-distance pull rod, the constant-distance pull rod is matched with the limit groove, a connecting block is arranged on each sidewall of the pouring gate plate and is connected with a pull rod through a shaft pin, a hook-removing inclined surface is arranged at the head of the pull rod, a pull hook is arranged at the middle part of the pull rod, an inclined surface lug is respectively on each sidewall of the mould core embedded block, and a mounting clamping block is arranged on each sidewall of the mould cavity embedded block, the inclined surface lugs are matched with the hook-removing inclined surfaces, and the clamping blocks are matched with the pull hooks.

Description

Injection mold pull bar secondary mould emptier
Technical field
The utility model relates to a kind of injection mold pull bar secondary mould emptier, belongs to the mould of plastics field.
Background technology
Adopt injection mold to produce the round plastic smallclothes, for example lid etc. is shaped on annular convex rib under the end face of this series products; Traditional moulds is produced this series products, adopts the active type cavity configuration often, i.e. during die sinking; Cavity plate is being with the product die sinking to move down with core plate, and cavity plate is separated with gate plate, and the material handle is deviate from from cast gate (runner); The thimble that is driven on the upper and lower top board of mould by the injection machine push rod then withstands on the product; (because the convex tendon of this series products is all very little, very thin, be inappropriate on convex tendon, add push rod and eject) ejects product outside the mould.Its shortcoming is: owing under the end face of product, be shaped on annular convex rib, annular convex rib is embedded in the die cavity, and the knockout press that needs is bigger, uses thimble to eject product separately, easily product is pushed up bad, top distortion, causes product rejection.
Summary of the invention
The purpose of the utility model is in order to overcome the shortcoming of prior art, a kind of employing pull bar secondary stripping means to be provided, product is deviate from smoothly, but does not push up bad, indeformable injection mold pull bar secondary mould emptier.
The technical scheme of the utility model injection mold pull bar secondary mould emptier is: comprise compound plate and following compound plate on the mould, last compound plate connects gate plate, is equipped with sprue bush in the gate plate, and the mould pin is installed on the following compound plate; Upper plate and lower roof plate are set in the mould pin, connect ejector beam on the upper plate, mounting plate on the mould pin; Core is installed on the fixed head is inserted, it is characterized in that the activity of going up of inserting of described core is provided with cavity block, cavity block, core insert and gate plate between constitute die cavity; The product that moulding is arranged in the die cavity is shaped on stopper slot in the cavity block, be equipped with controlled interval pull rod during core is inserted; Controlled interval pull rod matches with stopper slot, and contiguous block respectively is installed on the two side of gate plate, and each contiguous block is through the pivot pin cylinder lever connecting rod; The head of pull bar is shaped on the unhook inclined-plane, and the middle part of pull bar is shaped on drag hook, and the inclined-plane projection respectively is installed on the two side that core is inserted; Fixture block respectively is installed on the two side of cavity block, and the inclined-plane projection matches with the unhook inclined-plane, and fixture block matches with drag hook.
The injection mold pull bar secondary mould emptier of the utility model during the demoulding, at first drives core by injection machine power and inserts and the cavity block die sinking; Core is inserted, and operation downwards separates with gate plate with cavity block, and behind die sinking one segment distance, the fixture block on the cavity block two side contacts with the drag hook at pull bar middle part; Drag hook is held fixture block, and core is inserted, and continuation (die sinking) is downward to be moved, and separates with cavity block; Core is inserted and product disengages, and product is stayed in the cavity block, after core is inserted and continued to move a segment distance downwards then; The inclined-plane projection that core is inserted on the two side contacts with the unhook inclined-plane of rod head; In continuing the die sinking process, pull bar is outwards strutted around pivot pin, thereby drag hook and fixture block are disengaged.Continue die sinking, the ejector beam that the injection machine ejection system withstands on the upper and lower top board ejects product outside the mould, and the demoulding is accomplished.This programme adopts pull bar drag hook and unhook inclined-plane, makes the mould twice-die-opening, and product is indeformable when ejecting, and not damaged is deviate from smoothly.
The injection mold pull bar secondary mould emptier of the utility model is equipped with extension spring separately on the two side of described gate plate, extension spring is cylinder lever connecting rod separately, and pull bar is held in extension spring, and drag hook and fixture block on the pull bar are not broken off relations.Be equipped with fulcrum post on the two side of described gate plate separately, fulcrum post contacts with the pull bar inwall, and fulcrum post blocks pull bar, when preventing that pull bar from resetting and the mould collision.
Description of drawings
Fig. 1 is the injection mold pull bar secondary mould emptier matched moulds view of the utility model;
Fig. 2 is the utility model die sinking one segment distance view;
Fig. 3 is the utility model twice-die-opening view;
After Fig. 4 was the complete die sinking of the utility model, product was ejected view.
The specific embodiment
The utility model relates to a kind of injection mold pull bar secondary mould emptier, like Fig. 1-shown in Figure 4, comprises compound plate 1 and following compound plate 2 on the mould; Last compound plate 1 connects gate plate 3, is equipped with sprue bush 4 in the gate plate, and mould pin 5 is installed on the following compound plate 2; Upper plate 6 and lower roof plate 7 are set in the mould pin, connect ejector beam 8 on the upper plate 6, mounting plate 9 on the mould pin 5; Core is installed on the fixed head is inserted 10, activity is provided with cavity block 11 on 10 to it is characterized in that inserting described core, cavity block 11, core insert 10 and gate plate 3 between constitute die cavity; The product 12 of moulding is arranged in the die cavity, be shaped on stopper slot 13 in the cavity block 11, core is inserted and is equipped with controlled interval pull rod 14 in 10; Controlled interval pull rod 14 matches with stopper slot 13, and contiguous block 17 respectively is installed on the two side of gate plate 3, and each contiguous block 17 is through pivot pin 18 cylinder lever connecting rods 15; The head of pull bar 15 is shaped on unhook inclined-plane 16, and the middle part of pull bar is shaped on drag hook 19, on core is inserted 10 two side, inclined-plane projection 20 is installed respectively; Fixture block 21 respectively is installed on the two side of cavity block 11, and inclined-plane projection 20 matches with unhook inclined-plane 16, and fixture block 21 matches with drag hook 19.During the demoulding, at first by injection machine power drive core insert 10 with cavity block 11 die sinkings, core is inserted and 10 is moved downwards with cavity block 11 and to separate with gate plate 3; Behind die sinking one segment distance, the fixture block 21 on cavity block 11 two sides contacts with the drag hook 19 at pull bar 15 middle parts, and drag hook 19 is held 21 on card; Core is inserted and 10 is continued (die sinking) operation downwards, separates with cavity block 11, and core is inserted and 10 disengaged with product 12; Product 12 is stayed in the cavity block 11; Then core insert 10 continue downwards operation one segment distance after, the inclined-plane projection 20 that core is inserted on 10 two sides contacts with the unhook inclined-plane 16 of pull bar 15 heads, in continuation die sinking process; Pull bar 15 is outwards strutted around pivot pin 18, thereby drag hook 19 and fixture block 21 are disengaged.Continue die sinking, the ejector beam 8 that the injection machine ejection system withstands on the upper and lower top board 6,7 ejects product 12 outside the mould, and the demoulding is accomplished.This programme adopts pull bar drag hook and unhook inclined-plane, makes the mould twice-die-opening, and product is indeformable when ejecting, and not damaged is deviate from smoothly.Be equipped with extension spring 22 on the two side of described gate plate 3 separately, extension spring 22 is cylinder lever connecting rod 15 separately, and pull bar is held in extension spring, and drag hook and fixture block on the pull bar are not broken off relations.Be equipped with fulcrum post 23 on the two side of described gate plate 3 separately, fulcrum post 23 contacts with pull bar 15 inwalls, and fulcrum post blocks pull bar, when preventing that pull bar from resetting and the mould collision.

Claims (3)

1. injection mold pull bar secondary mould emptier comprises compound plate on the mould (1) and following compound plate (2), and last compound plate (1) connects gate plate (3); Be equipped with sprue bush (4) in the gate plate, following compound plate (2) is gone up mould pin (5) is installed, and upper plate (6) and lower roof plate (7) are set in the mould pin; Upper plate (6) go up to connect ejector beam (8), and mould pin (5) is gone up mounting plate (9), and core insert (10) is installed on the fixed head; It is characterized in that (10) activity of going up of inserting of described core is provided with cavity block (11), cavity block (11), core insert (10) and gate plate (3) between constitute die cavity, the product (12) of moulding is arranged in the die cavity; Be shaped on stopper slot (13) in the cavity block (11), core is inserted and is equipped with controlled interval pull rod (14) in (10), and controlled interval pull rod (14) matches with stopper slot (13); Contiguous block (17) respectively is installed on the two side of gate plate (3); Each contiguous block (17) is through pivot pin (18) cylinder lever connecting rod (15), and the head of pull bar (15) is shaped on unhook inclined-plane (16), and the middle part of pull bar is shaped on drag hook (19); Insert at core and inclined-plane projection (20) respectively is installed on the two side of (10); Fixture block (21) respectively is installed on the two side of cavity block (11), and inclined-plane projection (20) matches with unhook inclined-plane (16), and fixture block (21) matches with drag hook (19).
2. injection mold pull bar secondary mould emptier as claimed in claim 1 is characterized in that being equipped with extension spring (22) separately on the two side of described gate plate (3), and extension spring (22) is cylinder lever connecting rod (15) separately.
3. injection mold pull bar secondary mould emptier as claimed in claim 1 is characterized in that being equipped with fulcrum post (23) separately on the two side of described gate plate (3), and fulcrum post (23) contacts with pull bar (15) inwall.
CN2011204118555U 2011-10-26 2011-10-26 Secondary demoulding mechanism of pull rod of injection mould Expired - Lifetime CN202336981U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011204118555U CN202336981U (en) 2011-10-26 2011-10-26 Secondary demoulding mechanism of pull rod of injection mould

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011204118555U CN202336981U (en) 2011-10-26 2011-10-26 Secondary demoulding mechanism of pull rod of injection mould

Publications (1)

Publication Number Publication Date
CN202336981U true CN202336981U (en) 2012-07-18

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103029271A (en) * 2012-11-08 2013-04-10 广西梧州五一塑料制品有限公司 Device for demoulding of injecting and molding mold
CN103240849A (en) * 2013-04-17 2013-08-14 宁波跃飞模具有限公司 Outer hook-type push plate and head plate secondary ejector
CN104029343A (en) * 2014-06-05 2014-09-10 宁波跃飞模具有限公司 Simple general external double ejection device for injection mold
CN104097292A (en) * 2013-04-03 2014-10-15 广州市鑫富塑胶有限公司 Molding mold of barrel-shaped united-row-type plastic pin
CN104210073A (en) * 2014-09-26 2014-12-17 天津三星电子有限公司 Ejector-plate-free demolding structure mold
CN104260293A (en) * 2014-09-18 2015-01-07 温州恒田模具发展有限公司 Secondary ejection mold of anti-sticking die
CN104908232A (en) * 2014-03-12 2015-09-16 昆山广禾电子科技有限公司 Automatic cut-out forming die
CN107756743A (en) * 2017-10-25 2018-03-06 浙江凯华模具有限公司 The secondary demolding mechanism of the tiny projection of injection mold
CN113386314A (en) * 2021-07-14 2021-09-14 宝利根(东莞)电子科技有限公司 Sectional ejection structure and mold comprising same
CN114273530A (en) * 2021-12-29 2022-04-05 奇瑞汽车股份有限公司 Die limiting device

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103029271A (en) * 2012-11-08 2013-04-10 广西梧州五一塑料制品有限公司 Device for demoulding of injecting and molding mold
CN104097292A (en) * 2013-04-03 2014-10-15 广州市鑫富塑胶有限公司 Molding mold of barrel-shaped united-row-type plastic pin
CN104097292B (en) * 2013-04-03 2016-09-21 广州市鑫富塑胶有限公司 Barrel-shaped townhouse plastic pin mould
CN103240849A (en) * 2013-04-17 2013-08-14 宁波跃飞模具有限公司 Outer hook-type push plate and head plate secondary ejector
CN103240849B (en) * 2013-04-17 2016-01-20 宁波跃飞模具有限公司 The secondary ejection device of a kind of external hook-hang type push pedal and top board
CN104908232B (en) * 2014-03-12 2017-02-22 昆山广禾电子科技有限公司 Automatic cut-out forming die
CN104908232A (en) * 2014-03-12 2015-09-16 昆山广禾电子科技有限公司 Automatic cut-out forming die
CN104029343A (en) * 2014-06-05 2014-09-10 宁波跃飞模具有限公司 Simple general external double ejection device for injection mold
CN104029343B (en) * 2014-06-05 2016-06-08 宁波跃飞模具有限公司 A kind of external secondary ejection device of injection mold simple general use
CN104260293A (en) * 2014-09-18 2015-01-07 温州恒田模具发展有限公司 Secondary ejection mold of anti-sticking die
CN104260293B (en) * 2014-09-18 2016-11-16 温州恒田模具发展有限公司 A kind of secondary ejection mold of anti-sticking to mould
CN104210073A (en) * 2014-09-26 2014-12-17 天津三星电子有限公司 Ejector-plate-free demolding structure mold
CN107756743A (en) * 2017-10-25 2018-03-06 浙江凯华模具有限公司 The secondary demolding mechanism of the tiny projection of injection mold
CN107756743B (en) * 2017-10-25 2023-04-18 浙江凯华模具有限公司 Secondary demolding mechanism for fine convex columns of injection mold
CN113386314A (en) * 2021-07-14 2021-09-14 宝利根(东莞)电子科技有限公司 Sectional ejection structure and mold comprising same
CN114273530A (en) * 2021-12-29 2022-04-05 奇瑞汽车股份有限公司 Die limiting device

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Granted publication date: 20120718