CN204196160U - Be provided with the injection mold of circulus knock-out gear - Google Patents

Be provided with the injection mold of circulus knock-out gear Download PDF

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Publication number
CN204196160U
CN204196160U CN201420508829.8U CN201420508829U CN204196160U CN 204196160 U CN204196160 U CN 204196160U CN 201420508829 U CN201420508829 U CN 201420508829U CN 204196160 U CN204196160 U CN 204196160U
Authority
CN
China
Prior art keywords
mold insert
cylinder
mold
knock
out gear
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.)
Withdrawn - After Issue
Application number
CN201420508829.8U
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Chinese (zh)
Inventor
尤建国
华明伟
胡爱斌
林光亮
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.)
Ningbo City Hua Bao Plastic Mould Ltd Co
Original Assignee
Ningbo City Hua Bao Plastic Mould Ltd Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Ningbo City Hua Bao Plastic Mould Ltd Co filed Critical Ningbo City Hua Bao Plastic Mould Ltd Co
Priority to CN201420508829.8U priority Critical patent/CN204196160U/en
Application granted granted Critical
Publication of CN204196160U publication Critical patent/CN204196160U/en
Withdrawn - After Issue legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

A kind of injection mold being provided with circulus knock-out gear of the utility model, is provided with the knock-out gear of shaped article cylinder in mavable module core; 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 adopt the first mold insert to suspend strong de-mode, 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 utility model 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.The utility model belongs to die apparatus technical field.

Description

Be provided with the injection mold of circulus knock-out gear
Technical field
The utility model belongs to die apparatus technical field, especially relates 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.
Utility model content
Technical problem to be solved in the utility model 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.
Technical solution adopted in the utility model 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 beneficial effects of the utility model are: a kind of injection mold being provided with circulus knock-out gear of the utility model, 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 utility model 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 the utility model dynamic model part explosive view.
Fig. 3 is A place enlarged drawing in Fig. 2.
Fig. 4 is the first mold insert schematic diagram.
Fig. 5 is the utility model state one schematic diagram.
Fig. 6 is B1 enlarged drawing in Fig. 5.
Fig. 7 is the utility model state two schematic diagram.
Fig. 8 is B2 enlarged drawing in Fig. 7.
Fig. 9 is the utility model state three schematic diagram.
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 utility model 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.
CN201420508829.8U 2014-09-01 2014-09-01 Be provided with the injection mold of circulus knock-out gear Withdrawn - After Issue CN204196160U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420508829.8U CN204196160U (en) 2014-09-01 2014-09-01 Be provided with the injection mold of circulus knock-out gear

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420508829.8U CN204196160U (en) 2014-09-01 2014-09-01 Be provided with the injection mold of circulus knock-out gear

Publications (1)

Publication Number Publication Date
CN204196160U true CN204196160U (en) 2015-03-11

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104227999A (en) * 2014-09-01 2014-12-24 宁波市华宝塑胶模具股份有限公司 Injection mould provided with mould stripping mechanism with annular structure

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104227999A (en) * 2014-09-01 2014-12-24 宁波市华宝塑胶模具股份有限公司 Injection mould provided with mould stripping mechanism with annular structure

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
AV01 Patent right actively abandoned

Granted publication date: 20150311

Effective date of abandoning: 20160921

C25 Abandonment of patent right or utility model to avoid double patenting