CN210552821U - Bidirectional core-pulling demoulding structure of back-off in deep and narrow groove - Google Patents
Bidirectional core-pulling demoulding structure of back-off in deep and narrow groove Download PDFInfo
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- CN210552821U CN210552821U CN202020336154.9U CN202020336154U CN210552821U CN 210552821 U CN210552821 U CN 210552821U CN 202020336154 U CN202020336154 U CN 202020336154U CN 210552821 U CN210552821 U CN 210552821U
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- inclined ejector
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- 230000002457 bidirectional effect Effects 0.000 title description 3
- 238000001746 injection moulding Methods 0.000 claims description 3
- 230000007246 mechanism Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 5
- 230000008569 process Effects 0.000 abstract description 5
- 238000002347 injection Methods 0.000 abstract description 2
- 239000007924 injection Substances 0.000 abstract description 2
- 238000005267 amalgamation Methods 0.000 abstract 2
- 229920003023 plastic Polymers 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000001595 flow curve Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
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Abstract
The utility model discloses a two-way knockout core demoulding structure of back-off in dark narrow groove adopts straight top and two oblique top two-way structure of loosing core, the second oblique kicking block is located the below of first oblique kicking block, first oblique kicking block and the close amalgamation of second oblique kicking block structure constitute back-off forming structure jointly, first oblique kicking block and second oblique kicking block all have inclination, and both inclination direction are opposite, straight kicking block is located one side of first oblique kicking block and second oblique kicking block, straight kicking block and the close amalgamation of first oblique kicking block constitute local dark narrow groove forming structure of goods jointly, provide the space for the ejecting motion of second oblique kicking block simultaneously; the utility model discloses can effectively solve the regional back-off structure in dark narrow groove of goods, especially the difficult problem of drawing of patterns of arc back-off structure, simple structure, occupation space are little, have simplified the mould structure to guaranteed mould structural strength, simplified the process, shortened product injection cycle, productivity gain practices thrift the cost.
Description
Technical Field
The utility model relates to a mold design field especially relates to a two-way demoulding structure of loosing core of dark narrow groove internal undercut.
Background
With the increasing requirements of users on the beautiful appearance and the comfortable utilization space of the automobile, the shapes of plastic products forming the automobile also pursue appearance characteristics such as a flow curve, narrow and exquisite characteristics, the automobile plastic products have many internal structure characteristics in order to meet the requirements of assembly and use functions, especially for some products with deep and narrow grooves, the characteristics sometimes appear in the structure area of the deep and narrow grooves and form an inverted buckle, so that the products cannot be directly demoulded after the injection molding is finished; particularly, for the arc-shaped back-off which is in a deep narrow groove and has a beautiful curve, the conventional single inclined top core pulling structure in the conventional common injection mold can not realize the demoulding of the back-off structure alone, so that the problems of complex structure, complex demoulding process, difficult demoulding and the like of the product mold are caused.
SUMMERY OF THE UTILITY MODEL
In order to solve the defects of the prior art, the utility model aims to provide a two-way knockout core demoulding structure of back-off in dark narrow groove.
In order to achieve the above purpose, the utility model is realized by the following technical scheme:
the utility model provides a two-way knockout core demoulding structure of back-off in dark narrow groove, includes: the structure of the first inclined ejecting block and the second inclined ejecting block is closely spliced, the first inclined ejecting block and the second inclined ejecting block which are reversely buckled jointly form a reverse buckling integral forming structure, the straight ejecting block is positioned on one side of the first inclined ejecting block and the second inclined ejecting block, the side face of the straight ejecting block is closely spliced with the side face of the first inclined ejecting block to jointly form a local deep narrow groove forming structure of a product, the first inclined ejecting block and the second inclined ejecting block are provided with inclination angles, the inclination directions of the first inclined ejecting block and the second inclined ejecting block are opposite, and the inclination direction of the first inclined ejecting block is gradually far away from the straight ejecting block, the inclined direction of the second inclined ejecting block is gradually close to the straight ejecting block, in order to avoid interference, the straight ejecting block is provided with a clearance matched with the second inclined ejecting block for use, and the upper end face of the clearance is consistent with the upper end face of the second inclined ejecting block in structure and is in sliding connection.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model adopts a straight-ejection and two-inclined-ejection bidirectional core-pulling structure, which can effectively solve the problem of difficult demoulding of a product deep narrow groove region back-off structure, in particular an arc back-off structure, and the straight ejection block and the first inclined ejection block jointly form a local deep narrow groove forming structure of the product and simultaneously provide a space for the ejection motion of the second inclined ejection block; the utility model discloses simple structure, occupation space are little, have simplified the mould structure to guaranteed mould structural strength, in addition, simplified the process, shortened the product cycle of moulding plastics, productivity gain practices thrift the cost.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic diagram of the structure of the present invention and the product;
FIG. 3 is a schematic view of the internal structure of the product of the present invention;
fig. 4 is a schematic diagram of the explosion structure of the present invention.
In the figure: 1-a first inclined ejecting block; 11-reversing the first forming block; 2-a second inclined ejecting block; 21-reversing the second forming block; 3-straightening a top block; 31-avoiding the space; 4-a first oblique ejector rod; 5-a second oblique ejector rod; 6-straight ejector pin.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer and more obvious, the present invention is further described in detail below with reference to the accompanying drawings and embodiments.
As shown in fig. 1 to 4, the utility model provides a two-way demoulding structure of loosing core of dark narrow inslot back-off, include: a first inclined ejector block 1, a second inclined ejector block 2 and a straight ejector block 3, wherein the lower ends of the first inclined ejector block 1, the second inclined ejector block 2 and the straight ejector block 3 are respectively arranged on an ejector plate of an ejection mechanism of an injection molding machine through a first inclined ejector rod 4, a second inclined ejector rod 5 and a straight ejector rod 6, the first inclined ejector block 1 is provided with a first reverse-buckling forming block 11, the second inclined ejector block 2 is positioned below the first inclined ejector block 1 and is provided with a second reverse-buckling forming block 21, the structures of the first inclined ejector block 1 and the second inclined ejector block 2 are tightly spliced, the first reverse-buckling forming block 11 and the second reverse-buckling forming block 21 jointly form a reverse-buckling integral forming structure, the straight ejector block 3 is positioned on one side of the first inclined ejector block 1 and the second inclined ejector block 2, the side of the straight ejector block 3 and the side of the first inclined ejector block 1 are tightly spliced to jointly form a local deep narrow groove forming structure of a product, and the first inclined ejector block 1 and the second inclined ejector block 2 both have inclination angles, and the inclination directions of the first inclined ejecting block and the second inclined ejecting block are opposite, the inclination direction of the first inclined ejecting block 1 is gradually far away from the straight ejecting block 3, the inclination direction of the second inclined ejecting block 2 is gradually close to the straight ejecting block 3, in order to avoid interference, the straight ejecting block 3 is provided with a clearance 31 matched with the second inclined ejecting block 2 for use, and the upper end surface of the clearance 31 is consistent with the upper end surface of the second inclined ejecting block 2 in structure and is in sliding connection.
The utility model discloses a concrete working process does:
when the die is opened, the ejector plate is ejected upwards, the first inclined ejector block 1, the second inclined ejector block 2 and the straight ejector block 3 are ejected upwards synchronously, in the process, the first inclined ejector block 1 and the second inclined ejector block 2 move leftwards and rightwards in a two-way mode relative to the straight ejector block 3 respectively, and finally the back-off demoulding is realized.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (1)
1. The utility model provides a two-way knockout core demoulding structure of back-off in dark narrow groove which characterized in that includes: a first inclined ejector block (1), a second inclined ejector block (2) and a straight ejector block (3), wherein the lower ends of the first inclined ejector block (1), the second inclined ejector block (2) and the straight ejector block (3) are respectively arranged on an ejector plate of an ejection mechanism of an injection molding machine through a first inclined ejector rod (4), a second inclined ejector rod (5) and a straight ejector rod (6), the first inclined ejector block (1) is provided with a reverse-buckling first forming block (11), the second inclined ejector block (2) is positioned below the first inclined ejector block (1) and is provided with a reverse-buckling second forming block (21), the structures of the first inclined ejector block (1) and the second inclined ejector block (2) are tightly spliced, the reverse-buckling first forming block (11) and the reverse-buckling second forming block (21) jointly form a reverse-buckling integral forming structure, the straight ejector block (3) is positioned on one side of the first inclined ejector block (1) and the second inclined ejector block (2), and the side of the straight ejector block (3) and the side of the first inclined ejector block (1) are tightly spliced, constitute the local dark narrow groove forming structure of goods jointly, first oblique kicking block (1) and the oblique kicking block of second (2) all have inclination, and both inclination opposite direction, the inclination of first oblique kicking block (1) is kept away from gradually straight kicking block (3), the inclination of the oblique kicking block of second (2) is close to gradually straight kicking block (3), in order to avoid producing and interfere, straight kicking block (3) be provided with clearance (31) are kept away in the cooperation of the oblique kicking block of second (2), the up end of keeping away clearance (31) with the up end structure of the oblique kicking block of second (2) is unanimous, and sliding connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020336154.9U CN210552821U (en) | 2020-03-18 | 2020-03-18 | Bidirectional core-pulling demoulding structure of back-off in deep and narrow groove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020336154.9U CN210552821U (en) | 2020-03-18 | 2020-03-18 | Bidirectional core-pulling demoulding structure of back-off in deep and narrow groove |
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| Publication Number | Publication Date |
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| CN210552821U true CN210552821U (en) | 2020-05-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020336154.9U Active CN210552821U (en) | 2020-03-18 | 2020-03-18 | Bidirectional core-pulling demoulding structure of back-off in deep and narrow groove |
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| CN (1) | CN210552821U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111923344A (en) * | 2020-08-24 | 2020-11-13 | 深圳市银宝山新科技股份有限公司 | An inverted mold release structure and injection mold for automobile instrument panel |
| WO2023040049A1 (en) * | 2021-09-14 | 2023-03-23 | 浙江凯华模具有限公司 | Injection mold intersecting inclined ejection and removal mechanism |
-
2020
- 2020-03-18 CN CN202020336154.9U patent/CN210552821U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111923344A (en) * | 2020-08-24 | 2020-11-13 | 深圳市银宝山新科技股份有限公司 | An inverted mold release structure and injection mold for automobile instrument panel |
| WO2023040049A1 (en) * | 2021-09-14 | 2023-03-23 | 浙江凯华模具有限公司 | Injection mold intersecting inclined ejection and removal mechanism |
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