CN114434757B - A mould for drawing of patterns of wide-angle back-off - Google Patents
A mould for drawing of patterns of wide-angle back-off Download PDFInfo
- Publication number
- CN114434757B CN114434757B CN202210097179.1A CN202210097179A CN114434757B CN 114434757 B CN114434757 B CN 114434757B CN 202210097179 A CN202210097179 A CN 202210097179A CN 114434757 B CN114434757 B CN 114434757B
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- China
- Prior art keywords
- sliding block
- ejector
- seat
- angle
- mold
- Prior art date
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- 238000010030 laminating Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000002347 injection Methods 0.000 abstract description 3
- 239000007924 injection Substances 0.000 abstract description 3
- 239000011148 porous material Substances 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
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- 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
- B29C45/4435—Removing or ejecting moulded articles for undercut articles using inclined, tiltable or flexible undercut forming elements driven by the ejector means
-
- 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
- B29C45/332—Mountings or guides therefor; Drives therefor
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention provides a mold for large-angle back-off demolding, which belongs to the technical field of injection molds and comprises a fixed mold plate, a movable mold plate, an ejector pin, a sliding block and a sliding block seat, wherein the ejector pin plate is arranged below the movable mold plate; the ejector pin bottom is vertical to be fixed on the ejector pin board, and its top is equipped with the slope section that inclines to the left, and the slope section is located in the guiding hole in the slider, and the right flank of slope section is laminated with the guiding hole, and its left surface leaves certain distance with the guiding hole pore wall. The invention has simple and reasonable structure and convenient demoulding, can form the back-off part of the mould at one time, reduces the cost, improves the production efficiency, and can be applied and popularized in more moulds.
Description
Technical Field
The invention relates to the technical field of injection molds, in particular to a mold for large-angle back-off demolding.
Background
Because of the limitation of the product structure, a large-angle downward slope withdrawal inclined top structure is needed in the lower injection mold of the automobile B column, namely, the inclined top is guided and driven by the inclined top rod to withdraw along the opening direction of the product. When the large-angle downhill of the inclined roof is needed, the angle of the general inclined roof downhill is limited within 45 degrees, and the inclined roof is extremely easy to move and lock for downhill exceeding 45 degrees, so that the action of the die is unreliable, the inclined ejector rod is easy to break, the production efficiency of the die is affected, and sometimes two sets of dies have to be opened, thereby increasing the production cost of products and wasting more than one time of manpower and material resources.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a die for large-angle back-off demolding, which is reasonable in design, overcomes the defects in the prior art and has good effect.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the utility model provides a mould for large-angle back-off drawing of patterns, includes fixed template, movable mould board and thimble board, and the thimble board sets up in the movable mould board below, its characterized in that still includes ejector pin, slider and slider seat, wherein:
The sliding block seat is fixed on the movable template, the sliding block is positioned above the sliding block seat and is in sliding fit with the sliding block seat left and right, the sliding block left side is provided with an inclined jacking block, and the sliding block seat and the sliding block are internally provided with guide holes for the jacking rod to pass through;
The ejector pin bottom is vertical to be fixed on the ejector pin board, and its top is equipped with the slope section that inclines to the left, and the slope section is located in the guiding hole in the slider, and the right flank of slope section is laminated with the guiding hole, leaves certain space between its left surface and the guiding hole.
Further, the oblique top block is connected with the product piece in a matching way.
Further, the angle of inclination of the inclined section to the left is smaller than the angle of withdrawal of the pitched roof block relative to the product piece
Further, an inverted T-shaped guide groove is arranged in the sliding block seat, and the bottom of the sliding block is in sliding connection with the inverted T-shaped guide groove.
Further, the front mold ejection mechanism drives the ejector plate to vertically and upwardly eject the product piece, the ejector rod moves upwards along with the ejector plate, at the moment, the sliding block slides rightwards on the sliding block seat, the rightward movement speed of the sliding block is smaller than that of the product piece, and the inclined ejector block moves rightwards downwards relative to the vertically and upwardly moved product piece and is separated from the back-off.
The invention has the beneficial technical effects that:
according to the invention, the oblique ejector rod is obliquely arranged in the sliding block, the upper end of the oblique ejector rod is provided with the oblique ejector head which is transversely matched with the back-off part of the product, when the die is closed, the oblique ejector head is transversely inserted into the back-off part, and after the die is opened, the sliding block is driven by the oil cylinder to move downwards to drive the oblique ejector rod to move towards the core pulling direction, and the oblique ejector head is separated from the back-off part of the product. The invention has simple and reasonable structure and convenient demoulding, can form the back-off part of the mould at one time, reduces the cost, improves the production efficiency, and can be applied and popularized in more moulds.
Drawings
FIG. 1 is a schematic view of the overall product of the present invention;
FIG. 2 is a cross-sectional view of a back-off of a product piece according to the present invention;
FIG. 3 is a schematic view of a structure of a large angle back-off mold according to the present invention;
FIG. 4 is a cross-sectional view of a mold for high angle back-off in accordance with the present invention;
FIG. 5 is an enlarged schematic view of portion A of FIG. 4;
Wherein, 1-moving the template; 2-ejector plate; 3-ejector rods; 301-an inclined section; 4-a slider; 5-a slide block seat; 6-an inclined top block; 7-a guide hole; 8-product pieces; 9-back-off; 10-an inverted T-shaped guide groove;
Detailed Description
The following description of the embodiments of the invention will be given with reference to the accompanying drawings and examples:
as shown in fig. 1-5, a mold for large-angle back-off demolding comprises a fixed mold plate, a movable mold plate 1 and a thimble plate 2, wherein the thimble plate 2 is arranged below the movable mold plate 1, and further comprises a push rod 3, a slide block 4 and a slide block seat 5, wherein:
the sliding block seat 5 is fixed on the movable template 1, the sliding block 4 is positioned above the sliding block seat 5 and is in sliding fit with the sliding block seat in a left-right direction, the left side of the sliding block 4 is provided with an inclined jacking block 6, and the sliding block seat 5 and the sliding block 4 are internally provided with guide holes 7 for the jacking rod 3 to pass through;
the ejector rod 3 bottom is vertical to be fixed on ejector pin board 2, and ejector rod 3 is square, and its top is equipped with the slope section 301 that inclines to the left, and slope section 301 is arranged in the guiding hole 7 in slider 4, and the right flank of slope section 301 is laminated with guiding hole 7, leaves certain space between its left flank and guiding hole 7, and the left flank top withstands the drill way of guiding hole 7 just, and drill way department is equipped with the chamfer.
Specifically, the angled roof block 6 is cooperatively connected with the product piece 8.
In particular, the angle at which the inclined section 301 is inclined to the left is smaller than the angle at which the pitched roof block 6 is withdrawn with respect to the product piece
Specifically, an inverted T-shaped guide groove 10 is arranged in the slide block seat 5, and the bottom of the slide block 4 is in sliding connection with the inverted T-shaped guide groove 10.
Specifically, the front mold ejection mechanism drives the ejector plate 2 to vertically and upwardly eject the product piece 8, the ejector rod 3 moves upwards along with the ejector plate 2, at the moment, the sliding block 4 slides rightwards on the sliding block seat 5, the rightward movement speed of the sliding block 4 is smaller than the upward movement speed of the product piece 8, and the inclined ejector block 6 moves downwards and rightwards relative to the vertically and upwardly moved product piece 8 and is separated from the back-off 9.
In the description of the present application, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application.
It should be understood that the above description is not intended to limit the invention to the particular embodiments disclosed, but to limit the invention to the particular embodiments disclosed, and that the invention is not limited to the particular embodiments disclosed, but is intended to cover modifications, adaptations, additions and alternatives falling within the spirit and scope of the invention.
Claims (5)
1. The utility model provides a mould for large-angle back-off drawing of patterns, includes fixed template, movable mould board and thimble board, the thimble board sets up in the movable mould board below, its characterized in that still includes ejector pin, slider and slider seat, wherein:
the sliding block seat is fixed on the movable template, the sliding block is positioned above the sliding block seat and is in sliding fit with the sliding block seat left and right, the left side of the sliding block is provided with an inclined jacking block, and guide holes for the ejector rod to pass through are formed in the sliding block seat and the sliding block;
the ejector rod bottom is vertically fixed on the ejector pin plate, and its top is equipped with the slope section that inclines to the left, and the slope section is located in the guiding hole in the slider, the right flank and the guiding hole laminating of slope section, leave certain space between its left surface and the guiding hole.
2. The mold for high angle back off demolding as claimed in claim 1, wherein said angled roof block is cooperatively connected with the product piece.
3. A mold for high angle back-off demolding according to claim 1, wherein the angle of the inclined section to the left is smaller than the angle of withdrawal of the beveled top block relative to the product piece.
4. The mold for large-angle back-off demolding according to claim 1, wherein the slide block seat is internally provided with a back-T-shaped guide groove, and the bottom of the slide block is in sliding connection with the back-T-shaped guide groove.
5. The mold for large-angle back-off demolding according to any one of claims 1 to 4, wherein the front mold ejection mechanism drives the ejector plate to vertically eject the product piece upwards, the ejector rod moves upwards along with the ejector plate, the sliding block slides rightwards on the sliding block seat at the moment, the rightward movement speed of the sliding block is smaller than the upward movement speed of the product piece, and the oblique ejector block moves rightwards downwards relative to the vertically upwardly moved product piece so as to be separated from the back-off.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210097179.1A CN114434757B (en) | 2022-01-27 | 2022-01-27 | A mould for drawing of patterns of wide-angle back-off |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210097179.1A CN114434757B (en) | 2022-01-27 | 2022-01-27 | A mould for drawing of patterns of wide-angle back-off |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114434757A CN114434757A (en) | 2022-05-06 |
| CN114434757B true CN114434757B (en) | 2024-05-07 |
Family
ID=81368969
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210097179.1A Active CN114434757B (en) | 2022-01-27 | 2022-01-27 | A mould for drawing of patterns of wide-angle back-off |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114434757B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102363352A (en) * | 2011-10-31 | 2012-02-29 | 青岛海尔模具有限公司 | Down-slope oblique jacking accelerating core pulling mechanism assembly in injection mold |
| CN103009582A (en) * | 2012-12-24 | 2013-04-03 | 黄岩星泰塑料模具有限公司 | Core-pulling mechanism applied to oversized anti-stripping slope |
| CN112622206A (en) * | 2020-12-25 | 2021-04-09 | 佛山职业技术学院 | Pitched roof demoulding mechanism |
| CN113211730A (en) * | 2021-04-15 | 2021-08-06 | 浙江凯华模具有限公司 | Injection mold with linkage type back-off demolding mechanism |
| CN214773789U (en) * | 2021-01-18 | 2021-11-19 | 台州市凯华汽车模具有限公司 | Injection mold super large angle pushes up to one side and takes off back-off mechanism |
| CN215359675U (en) * | 2021-06-28 | 2021-12-31 | 浙江赛豪实业有限公司 | Large-angle straight-ejection inclined core pulling mechanism |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8475156B2 (en) * | 2011-03-24 | 2013-07-02 | Cheng Uei Precision Industry Co., Ltd. | Injection mold |
-
2022
- 2022-01-27 CN CN202210097179.1A patent/CN114434757B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102363352A (en) * | 2011-10-31 | 2012-02-29 | 青岛海尔模具有限公司 | Down-slope oblique jacking accelerating core pulling mechanism assembly in injection mold |
| CN103009582A (en) * | 2012-12-24 | 2013-04-03 | 黄岩星泰塑料模具有限公司 | Core-pulling mechanism applied to oversized anti-stripping slope |
| CN112622206A (en) * | 2020-12-25 | 2021-04-09 | 佛山职业技术学院 | Pitched roof demoulding mechanism |
| CN214773789U (en) * | 2021-01-18 | 2021-11-19 | 台州市凯华汽车模具有限公司 | Injection mold super large angle pushes up to one side and takes off back-off mechanism |
| CN113211730A (en) * | 2021-04-15 | 2021-08-06 | 浙江凯华模具有限公司 | Injection mold with linkage type back-off demolding mechanism |
| CN215359675U (en) * | 2021-06-28 | 2021-12-31 | 浙江赛豪实业有限公司 | Large-angle straight-ejection inclined core pulling mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114434757A (en) | 2022-05-06 |
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