CN104227999A - Injection mould provided with mould stripping mechanism with annular structure - Google Patents
Injection mould provided with mould stripping mechanism with annular structure Download PDFInfo
- Publication number
- CN104227999A CN104227999A CN201410448971.2A CN201410448971A CN104227999A CN 104227999 A CN104227999 A CN 104227999A CN 201410448971 A CN201410448971 A CN 201410448971A CN 104227999 A CN104227999 A CN 104227999A
- Authority
- CN
- China
- Prior art keywords
- mold insert
- mould
- mold
- cylinder
- shaped article
- 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.)
- Granted
Links
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
- B29C45/40—Removing or ejecting moulded articles
- B29C45/4005—Ejector constructions; Ejector operating mechanisms
-
- 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
- B29C45/33—Moulds having transversely, e.g. radially, movable mould parts
-
- 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
- B29C45/40—Removing or ejecting moulded articles
- B29C45/44—Removing or ejecting moulded articles for undercut articles
- B29C45/4407—Removing or ejecting moulded articles for undercut articles by flexible movement of undercut portions of the articles
Abstract
The invention provides an injection mould provided with a mould stripping mechanism with an annular structure. A movable mould core is internally provided with the mould stripping mechanism of a molded product column body; the mould stripping of a convex ring undercut part of a product is realized without a slide block and is realized according to self properties of a plastic part product; a column body of the plastic part product is provided with a special structure, namely a notch; the free end of the column body of the product has a certain deformable performance by virtue of the structure so that the free end of the column body is expanded to be separated from an annular concave ring in a relative movement process of the convex ring undercut and the annular concave ring on a first embedding piece by virtue of a suspension and forced stripping manner of the first embedding piece, and furthermore, the mould stripping movement is finished; therefore, a large mould space is saved by the mould stripping mechanism, a phenomenon that mould cavities are influenced by the slide block to enlarge a gap is avoided and the structure of the mould is simplified; and the embedding piece floating manner is used for replacing a previous mould stripping manner which adopts the slide block, so that the mould manufacturing cost and the injection cost are greatly saved. The injection mould belongs to the technical field of mould equipment.
Description
Technical field
The invention belongs to die apparatus technical field, especially relate to a kind of injection mold being provided with circulus knock-out gear.
Background technology
Product 4 as shown in Figure 1, at present working of plastics is made up of two halves hollow cylinder, cylinder 4.1 peripheral surface has the bulge loop back-off 4.2 that ring-type is outstanding, during for such part design mould, what prior art adopted is that during the demoulding, two slide blocks are scratched to both sides by realizing the shaping of bulge loop back-off 4.2 with two slide blocks; Hollow position adopts a slide block vertically arranged to realize, the shortcoming that such mould exists mould to have enough spaces can allow skid, but for the mould of a multi-cavity mold, slide block can cause great waste to the arrangement of mould, allows the injection moulding cost of die manufacturing cost and mould significantly improve.
Summary of the invention
Technical problem to be solved by this invention is: provide a kind of injection mold being provided with circulus knock-out gear, very large die space can be saved, to make between die cavity can not by the impact of slide block make spacing every very large, simplify mould structure, originally need to do the depanning of slide block ability, can directly replace by the ralocatable mode of mold insert now; Making mold and injection moulding cost have had very large saving.
The technical solution used in the present invention is: a kind of injection mold being provided with circulus knock-out gear, comprise dynamic model, cover half and liftout attachment, dynamic model comprises mavable module core, moving platen, cover half comprises fixed mold core, formed product chamber is formed between described fixed mold core and mavable module core, liftout attachment communicates with formed product chamber, is provided with the knock-out gear of shaped article cylinder in described mavable module core, described knock-out gear comprises cushion block, first mold insert, second mold insert and elastic parts, cushion block is fixed on moving platen, elastic parts one end is connected with cushion block, the other end is connected with the first mold insert, first mold insert activity is engaged in mavable module core, mavable module core inside is provided with the first mold insert stroke limit block, second mold insert to be fixed on cushion block and to be positioned at the first mold insert, gap between first mold insert and the second mold insert is used for shaped article cylinder, second mold insert is used for the cavity of shaped article cylinder, one end of first mold insert is provided with the annular scrobicular ring of the bulge loop back-off on shaped article cylinder.
The first described mold insert is provided with manhole, and through-hole wall length direction is provided with two in 180 ° of symmetrically arranged grooves, and through hole lower end inner wall is provided with the annular scrobicular ring of shaped article bulge loop back-off; Second mold insert comprises type barred body, and the two sides of barred body are provided with two in 180 ° of symmetrically arranged shaping bars, and the length of barred body is greater than the length of shaping bar; Second mold insert is positioned at the first mold insert, shaping bar and groove shapes matching size, and the gap formed between barred body and through hole is for shaped article cylinder, and barred body is used for shaped article cylinder intracavity, shaping bar and the short slot of groove on shaped article cylinder.
Be provided with movable chamber in described mavable module core, the first mold insert is positioned at movable chamber, and one end of the first mold insert is provided with projection, matches with the stroke limit block in movable chamber.
Described elastic parts is helical spring, and one end is embedded in the first mold insert, and the other end is connected with cushion block.
Described liftout attachment comprises thimble and top board, and described thimble is arranged on top board, and top board is positioned at below moving platen, and thimble enters formed product chamber through after moving platen, mavable module core successively.
The invention has the beneficial effects as follows: a kind of injection mold being provided with circulus knock-out gear of the present invention, slide block is no longer adopted to realize the demoulding at product bulge loop back-off place, but according to working of plastics product self character, by the cylinder of working of plastics product, there is this special construction of short slot, this structure creates the free ending tool of product cylinder for certain deformable performance, therefore the strong de-mode of the first mold insert suspension is adopted, realize annular scrobicular ring on bulge loop back-off and the first mold insert in relative movement, the free end spreading of cylinder, be separated with annular scrobicular ring, complete stripping action, therefore, knock-out gear of the present invention saves very large die space, to make between die cavity can not by the impact of slide block make spacing every very large, simplify mould structure, originally need to do the depanning of slide block ability, the ralocatable mode of present mold insert replaces, and Making mold and injection moulding cost have had very large saving.
Accompanying drawing explanation
Fig. 1 is product schematic diagram to be produced.
Fig. 2 is dynamic model part explosive view of the present invention.
Fig. 3 is A place enlarged drawing in Fig. 2.
Fig. 4 is the first mold insert schematic diagram.
Fig. 5 is state one schematic diagram of the present invention.
Fig. 6 is B1 enlarged drawing in Fig. 5.
Fig. 7 is state two schematic diagram of the present invention.
Fig. 8 is B2 enlarged drawing in Fig. 7.
Fig. 9 is state three schematic diagram of the present invention.
Figure 10 is B3 enlarged drawing in Fig. 9.
In figure:
1, mavable module core, 1.1, stroke limit block, 2, moving platen, 3.1, cushion block, the 3.2, first mold insert, 3.2.1, annular scrobicular ring, 3.2.2, through hole, 3.2.3, groove, the 3.3, second mold insert, 3.3.1, barred body, 3.3.2, shaping bar, 3.4, elastic parts, 4, product, 4.1, cylinder, 4.2, bulge loop back-off, 4.3, short slot, 5.1, thimble, 5.2, top board.
Detailed description of the invention
Shown in Fig. 1-Figure 10, a kind of injection mold being provided with circulus knock-out gear, comprise dynamic model, cover half and liftout attachment, dynamic model comprises mavable module core 1, moving platen 2, cover half comprises fixed mold core, form product 4 forming cavity between described fixed mold core and mavable module core 1, liftout attachment communicates with product 4 forming cavity, is provided with the knock-out gear of shaped article 4 cylinder 4.1 in described mavable module core 1, described knock-out gear comprises cushion block 3.1, first mold insert 3.2, second mold insert 3.3 and elastic parts 3.4, cushion block 3.1 is fixed on moving platen 2, elastic parts 3.4 one end is connected with cushion block 3.1, the other end is connected with the first mold insert 3.2, first mold insert 3.2 activity is engaged in mavable module core 1, mavable module core 1 inside is provided with the first mold insert 3.2 stroke limit block 1.1, second mold insert 3.3 to be fixed on cushion block 3.1 and to be positioned at the first mold insert 3.2, gap between first mold insert 3.2 and the second mold insert 3.3 is used for shaped article 4 cylinder 4.1, second mold insert 3.3 is for the cavity of shaped article 4 cylinder 4.1, one end of first mold insert 3.2 is provided with the annular scrobicular ring 3.2.1 of the bulge loop back-off 4.2 on shaped article 4 cylinder 4.1.
The first described mold insert 3.2 is provided with manhole 3.2.2, and through hole 3.2.2 inwall length direction is provided with two in 180 ° of symmetrically arranged groove 3.2.3, and through hole 3.2.2 lower end inner wall is provided with the annular scrobicular ring 3.2.1 of shaped article 4 bulge loop back-off 4.2; Second mold insert 3.3 comprises type barred body 3.3.1, and the two sides of barred body 3.3.1 are provided with the length that two length in 180 ° of symmetrically arranged shaping bar 3.3.2, barred body 3.3.1 are greater than shaping bar 3.3.2; Second mold insert 3.3 is positioned at the first mold insert 3.2, shaping bar 3.3.2 and groove 3.2.3 geomery match, the gap formed between barred body 3.3.1 and through hole 3.2.2 is for shaped article 4 cylinder 4.1, barred body 3.3.1 is used for shaped article 4 cylinder 4.1 inner chamber, and shaping bar 3.3.2 and groove 3.2.3 is used for the short slot 4.3 on shaped article 4 cylinder 4.1.
Be provided with movable chamber in described mavable module core 1, the first mold insert 3.2 is positioned at movable chamber, and one end of the first mold insert 3.2 is provided with projection 3.2.1, matches with the stroke limit block 1.1 in movable chamber.
Described elastic parts 3.4 is helical spring, and one end is embedded in the first mold insert 3.2, and the other end is connected with cushion block 3.1.
Described liftout attachment comprises thimble 5.1 and top board 5.2, and described thimble 5.1 is arranged on top board 5.2, and top board 5.2 is positioned at below moving platen 2, and thimble 5.1 enters product 4 forming cavity through after moving platen 2, mavable module core 1 successively.
Operation principle of the present invention is: shown in composition graphs 5 and Fig. 6, the state after dynamic model and the material feeding of cover half matched moulds.Fixed half and moving half separately, the top board 5.2 of ejecting mechanism drives thimble 5.1 to move upward, thimble 5.1 promotes product 4 and moves upward, while motion, first mold insert 3.2 is under the effect of elastic parts 3.4 (helical spring), follow product 4 to move upward, because cushion block 3.1 does not move in knockout course, so the second mold insert 3.3 on cushion block 3.1 is separated with the cylinder 4.1 of product 4, also with the first mold insert 3.2 is separated simultaneously, complete the first step to loose core action, state as shown in Figure 7 and Figure 8, now, the lower end of the first mold insert 3.2 is blocked by the stroke limit block 1.1 of mavable module core 1, cannot continue to follow product 4 again to move, and product 4 at this time still continues to move upward under the effect of liftout attachment thimble 5.1, therefore, product 4 and the first mold insert 3.2 just there occurs relative motion, bulge loop back-off 4.2 on product 4 cylinder 4.1 and the annular scrobicular ring 3.2.1 of the first mold insert 3.2 produce the trend of relative motion, because cylinder 4.1 adopts working of plastics to make, and be provided with short slot 4.3, cylinder 4.1 is made to have certain changeability performance at bulge loop back-off 4.2 place, when product 4 continues to move upward, reducing a little is there is in cylinder 4.1 at bulge loop back-off 4.2 place, make to depart from the annular scrobicular ring 3.2.1 of the first mold insert 3.2, complete strong de-action, because working of plastics can recover voluntarily, therefore strong taking off does not impact product, after the final demoulding as shown in Figure 9 and Figure 10.
Claims (5)
1. one kind is provided with the injection mold of circulus knock-out gear, comprise dynamic model, cover half and liftout attachment, dynamic model comprises mavable module core (1), moving platen (2), cover half comprises fixed mold core, product (4) forming cavity is formed between described fixed mold core and mavable module core (1), liftout attachment communicates with product (4) forming cavity, it is characterized in that: the knock-out gear being provided with shaped article (4) cylinder (4.1) in described mavable module core (1), described knock-out gear comprises cushion block (3.1), first mold insert (3.2), second mold insert (3.3) and elastic parts (3.4), cushion block (3.1) is fixed on moving platen (2), elastic parts (3.4) one end is connected with cushion block (3.1), the other end is connected with the first mold insert (3.2), first mold insert (3.2) activity is engaged in mavable module core (1), mavable module core (1) inside is provided with the first mold insert (3.2) stroke limit block (1.1), second mold insert (3.3) is fixed on cushion block (3.1) and goes up and be positioned at the first mold insert (3.2), gap between first mold insert (3.2) and the second mold insert (3.3) is used for shaped article (4) cylinder (4.1), second mold insert (3.3) is for the cavity of shaped article (4) cylinder (4.1), one end of first mold insert (3.2) is provided with the annular scrobicular ring (3.2.1) of the bulge loop back-off (4.2) on shaped article (4) cylinder (4.1).
2. the injection mold being provided with circulus knock-out gear according to claim 1, it is characterized in that: described the first mold insert (3.2) is provided with manhole (3.2.2), through hole (3.2.2) inwall length direction is provided with two in 180 ° of symmetrically arranged grooves (3.2.3), and through hole (3.2.2) lower end inner wall is provided with the annular scrobicular ring (3.2.1) of shaped article (4) bulge loop back-off (4.2); Second mold insert (3.3) comprises type barred body (3.3.1), the two sides of barred body (3.3.1) are provided with two in 180 ° of symmetrically arranged shaping bars (3.3.2), and the length of barred body (3.3.1) is greater than the length of shaping bar (3.3.2); Second mold insert (3.3) is positioned at the first mold insert (3.2), shaping bar (3.3.2) and groove (3.2.3) geomery match, the gap formed between barred body (3.3.1) and through hole (3.2.2) is used for shaped article (4) cylinder (4.1), barred body (3.3.1) is for shaped article (4) cylinder (4.1) inner chamber, and shaping bar (3.3.2) and groove (3.2.3) are for the short slot (4.3) on shaped article (4) cylinder (4.1).
3. the injection mold being provided with circulus knock-out gear according to claim 2; it is characterized in that: in described mavable module core (1), be provided with movable chamber; first mold insert (3.2) is positioned at movable chamber; one end of first mold insert (3.2) is provided with projection (3.2.1), matches with the stroke limit block (1.1) in movable chamber.
4. the injection mold being provided with circulus knock-out gear according to claim 1; it is characterized in that: described elastic parts (3.4) is helical spring; one end is embedded in the first mold insert (3.2), and the other end is connected with cushion block (3.1).
5. the injection mold being provided with circulus knock-out gear according to claim 1; it is characterized in that: described liftout attachment comprises thimble (5.1) and top board (5.2); described thimble (5.1) is arranged on top board (5.2); top board (5.2) is positioned at moving platen (2) below, and thimble (5.1) enters product (4) forming cavity through after moving platen (2), mavable module core (1) successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410448971.2A CN104227999B (en) | 2014-09-01 | 2014-09-01 | It is provided with the injection mold of circulus knock-out gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410448971.2A CN104227999B (en) | 2014-09-01 | 2014-09-01 | It is provided with the injection mold of circulus knock-out gear |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104227999A true CN104227999A (en) | 2014-12-24 |
| CN104227999B CN104227999B (en) | 2016-09-21 |
Family
ID=52217327
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410448971.2A Active CN104227999B (en) | 2014-09-01 | 2014-09-01 | It is provided with the injection mold of circulus knock-out gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104227999B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110126213A (en) * | 2018-02-02 | 2019-08-16 | 深圳市美好创亿医疗科技有限公司 | Secondary stripper apparatus and secondary release method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7326045B2 (en) * | 2004-04-05 | 2008-02-05 | Top Grade Molds Ltd. | System for releasing molded part from entrapping core rings |
| CN201329659Y (en) * | 2009-01-06 | 2009-10-21 | 宁海县大鹏模具塑料有限公司 | Injection mold dynamic and fixed mould bidirectional helical ejection mechanism |
| CN102814945A (en) * | 2012-08-15 | 2012-12-12 | 珠海格力大金精密模具有限公司 | Automatic screw releasing device and injection mold comprising the same |
| CN204196160U (en) * | 2014-09-01 | 2015-03-11 | 宁波市华宝塑胶模具股份有限公司 | Be provided with the injection mold of circulus knock-out gear |
-
2014
- 2014-09-01 CN CN201410448971.2A patent/CN104227999B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7326045B2 (en) * | 2004-04-05 | 2008-02-05 | Top Grade Molds Ltd. | System for releasing molded part from entrapping core rings |
| CN201329659Y (en) * | 2009-01-06 | 2009-10-21 | 宁海县大鹏模具塑料有限公司 | Injection mold dynamic and fixed mould bidirectional helical ejection mechanism |
| CN102814945A (en) * | 2012-08-15 | 2012-12-12 | 珠海格力大金精密模具有限公司 | Automatic screw releasing device and injection mold comprising the same |
| CN204196160U (en) * | 2014-09-01 | 2015-03-11 | 宁波市华宝塑胶模具股份有限公司 | Be provided with the injection mold of circulus knock-out gear |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110126213A (en) * | 2018-02-02 | 2019-08-16 | 深圳市美好创亿医疗科技有限公司 | Secondary stripper apparatus and secondary release method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104227999B (en) | 2016-09-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204196134U (en) | The die-cut integrated mould of a kind of injection moulding | |
| CN204019883U (en) | The injection molding of configuration Hough piece for automobile engine high pressure sheath | |
| CN105034285A (en) | Inlaying type vertical injection mold structure achieving ejection and core pulling simultaneously | |
| CN103640190A (en) | Mold for demolding plastic products by virtue of slide block insert side core-pulling mechanism | |
| CN204054524U (en) | A kind of mould of plastics | |
| CN204196160U (en) | Be provided with the injection mold of circulus knock-out gear | |
| CN104972620A (en) | Injection mold injection part side edge upper and lower internal reversed buckles demoulding mechanism | |
| CN104802370A (en) | Mold of front mold ejection and demolding structure | |
| CN204955308U (en) | Vertical injection mold structure of loosing core in ejecting limit in limit of type of inlaying | |
| CN104227999A (en) | Injection mould provided with mould stripping mechanism with annular structure | |
| CN204546968U (en) | Borrow ejecting structure | |
| CN211194802U (en) | Secondary ejection die structure | |
| CN104859109A (en) | Lock pin type secondary ejection mechanism | |
| CN202029332U (en) | External bracing demoulding mechanism of automobile bumper injection mould | |
| CN205202023U (en) | Door wire harness sheath forming die | |
| CN204451074U (en) | Double-color mold structure | |
| CN203637106U (en) | Mold for demolding of plastic product by slider insert obliquely-pulled mechanism | |
| CN205112173U (en) | Quick forming die | |
| CN203567129U (en) | High-performance double-ejection mold structure | |
| CN208645787U (en) | A kind of easily demoulding mold | |
| CN107399050A (en) | A kind of plastic material injection mold | |
| CN204725801U (en) | A kind of Double-ejection demolding structure of window frame of automobile | |
| CN205097419U (en) | Novel plastic mold structure | |
| CN204640721U (en) | The Delayed ejection mechanism of injection mold | |
| CN205767293U (en) | Injection mold internal screw thread demolding structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 315609 Ningbo Huabao Plastic Mould Co., Ltd. Meilin Fangqian Village, Ninghai County, Zhejiang Province Patentee after: Ningbo Huabao Intelligent Technology Co., Ltd. Address before: 315609 Ningbo Huabao Plastic Mould Co., Ltd. Meilin Fangqian Village, Ninghai County, Zhejiang Province Patentee before: Ningbo City Hua Bao plastic mould limited company |