CN107030997A - One kind bending cylindrical mandrel withdrawing device - Google Patents
One kind bending cylindrical mandrel withdrawing device Download PDFInfo
- Publication number
- CN107030997A CN107030997A CN201710308799.4A CN201710308799A CN107030997A CN 107030997 A CN107030997 A CN 107030997A CN 201710308799 A CN201710308799 A CN 201710308799A CN 107030997 A CN107030997 A CN 107030997A
- Authority
- CN
- China
- Prior art keywords
- sliding block
- guide
- lower mold
- bar segment
- mold body
- 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.)
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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
- B29C45/44—Removing or ejecting moulded articles for undercut articles
-
- 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
- B29C2045/445—Removing or ejecting moulded articles for undercut articles using the movable undercut forming element for ejection of the moulded article
Abstract
One kind bending cylindrical mandrel withdrawing device, the forming cavity of sky is surrounded by upper die body and lower mold body, guide recess is machined with lower mold body, sliding block is positioned over above lower mold body, sliding block has circular arc bottom structure, circular arc bottom is matched with guide recess, sliding block right-hand member is fixedly connected with core, sliding block is machined with link slot at lower-left, guide pad is connected on the left of lower mold body, processing guide channel in guide pad, guide channel is tilted, L-type pull bar is divided into bar segment one, bar segment two, bar segment one is located in guide channel, bar segment two is embedded in link slot, the projection of bar segment two is resisted against on link slot inwall；Fluid media (medium) is after forming cavity solidification, remove upper die body, pull bar stress is moved along guide channel, pull bar has to the left and downward displacement, the swing of raised opposing slider low-angle while promoting sliding block to skid off, i.e. sliding block is skidded off along guide recess, and the core of sliding block right-hand member is extracted out from product, the demoulding is completed, the present apparatus is ingenious in design, reasonable.
Description
Technical field
The present invention relates to a kind of injection mold, more particularly to a kind of bending cylindrical mandrel withdrawing device.
Background technology
Plastics injection mould is the instrument for producing plastic products, using widely.In plastic products injection molding, by
There are indent, side channel, side opening etc. in the inside of some plastic products, need to set after mold cores and plastic part shaping by core pulling
Mode mold cores are taken out.The mode of plastic mould core-extracting is a lot, but, industry less for the extraction mode with radian hole
Person be badly in need of it is a kind of can it is convenient, stably, the draw-out device of reliable arc core.
One kind that the present invention is referred to bends cylindrical mandrel withdrawing device by processing guide recess in lower mold body, and in sliding block
The circular arc bottom of upper processing matching, sliding block is by possessing the pull bar push-and-pull of projection, and sliding block can be slided on designed track, with cunning
The connected core of block can extract the product of arc pipeline section out.
The content of the invention
Weak point present in regarding to the issue above, the present invention provides a kind of bending cylindrical mandrel withdrawing device.
To achieve the above object, the present invention provides a kind of bending cylindrical mandrel withdrawing device, including：
Lower mold body, the lower mold body is surrounded with the upper die body and is machined with the internal forming cavity for sky, the lower mold body
Curved guide recess；
Sliding block, the sliding block is bulk, and the sliding block is located at the upper left of the lower mold body, and the sliding block has circular arc
Bottom, the circular arc bottom is matched with the guide recess, and link slot is machined with the lower-left of the sliding block, and the link slot is divided into a left side
Inwall, upper wall, right inwall；
Core, the core is arc pipeline section shape, and the core is fixedly connected on the right-hand member of the sliding block, the core
Shape and the internal structure of the product with arc pipeline section are coincide, the arc pipeline section of the core and the arc of the guide recess
For the partial arc of concentric circles；
Guide pad, the guide pad is fixedly connected on inside the left side of the lower mold body, the guide pad and is machined with guiding
Passage, the guide channel is straight channel, and the straight channel is in certain inclination angle with horizontal direction；
L-type pull bar, the L-type pull bar is divided into orthogonal bar segment one, bar segment two, and the bar segment one is installed on described lead
Into passage, the bar segment two is embedded in the link slot, and the low order end of bar segment two is divided into left raised, upper plane, right convex
Rise.
As a further improvement on the present invention：The guide recess both sides are also machined with guide groove, the two of the circular arc bottom
Side is extended with convex edge.
As a further improvement on the present invention：The guide groove is matched with the convex edge.
As a further improvement on the present invention：The lower section of the product with arc pipeline section is equipped with ejecting mechanism.
As a further improvement on the present invention：The extended line of the guide channel and the arc of the guide recess are tangent.
As a further improvement on the present invention：The left end of bar segment one is further connected with actuator.
Beneficial effects of the present invention are：
1st, by processing guide recess in lower mold body, and the circular arc bottom of matching is processed on sliding block, sliding block is by possessing projection
Pull bar push-and-pull, sliding block can slide on designed track, and the core being connected with sliding block can extract the production of arc pipeline section out
Product.
2. simple in construction, ingenious in design, practical feasibility is high.
Brief description of the drawings
Fig. 1 is a kind of bending cylindrical mandrel withdrawing device sectional view of the present invention；
Fig. 2 is a kind of bending cylindrical mandrel withdrawing device stereogram of the present invention；
Fig. 3 is A-A sectional views in Fig. 1；
Fig. 4 is the sectional view of lower mold body in Fig. 3；
Fig. 5 is the sectional view of sliding block in Fig. 3；
Fig. 6 is the enlarged drawing of B location in Fig. 1；
Fig. 7 is profile when core is extracted out；
Fig. 8 is the enlarged drawing of location of C in Fig. 7.
In figure：1st, lower mold body；2nd, ejecting mechanism；3rd, the product with arc pipeline section；4th, core；5th, sliding block；6th, circular arc bottom；
61st, convex edge；7th, guide recess；71st, guide groove；8th, link slot；81st, left inside wall；82nd, upper wall；83rd, right inwall；9th, L-type pull bar；
91st, bar segment one；92nd, bar segment two；921st, left projection；922nd, upper plane；923rd, right projection；10th, guide pad；11st, guide channel.
Embodiment
As shown in figures 1-8, a kind of bending cylindrical mandrel withdrawing device described in the embodiment of the present invention, including：Lower mold body 1 with
Upper die body surrounds the internal forming cavity for sky, as shown in figure 4, being machined with curved guide recess 7 in lower mold body 1, is oriented to recessed
7 both sides of mouth are also machined with guide groove 71；As shown in Fig. 2 sliding block 5 is bulk, sliding block 5 is located at the upper left of lower mold body 1, such as schemes
Shown in 5, sliding block 5 has circular arc bottom 6, and the both sides of circular arc bottom 6 are extended with convex edge 61, as shown in figure 3, circular arc bottom 6 and guide recess 7
Matching, guide groove 71 is matched with convex edge 61；As shown in fig. 6, being machined with link slot 8 at the lower-left of sliding block 5,8 points of link slot is a left side
Inwall 81, upper wall 82, right inwall 83；As shown in Figure 1 and Figure 2, core 4 is arc pipeline section shape, and core 4 is fixedly connected on sliding block 5
Right-hand member, the shape of core 4 and the internal structure of the product 3 with arc pipeline section are coincide, the lower section of the product 3 with arc pipeline section
Equipped with ejecting mechanism 2；The arc pipeline section of core 4 and the partial arc that the arc of guide recess 7 is concentric circles；Guide pad 10 is fixed
Be connected to inside the left side of lower mold body 1, guide pad 10 and be machined with guide channel 11, guide channel 11 be straight channel, straight channel with
Horizontal direction is in certain inclination angle, and the extended line and the arc of guide recess 7 of straight channel are tangent；As shown in figure 1,9 points of L-type pull bar
For orthogonal bar segment 1, bar segment 2 92, bar segment 1 is installed in guide channel 11, and the left end of bar segment 1 is further connected with drive
Moving part；Bar segment 2 92 is embedded in link slot 6, as shown in fig. 6, the low order end of bar segment 2 92 be divided into left raised 921, upper plane 922,
Right raised 923.
The circular arc bottom of matching is processed by processing guide recess in lower mold body, and on sliding block, sliding block is by possessing projection
Pull bar push-and-pull, sliding block can be slided on designed track, and the core being connected with sliding block can extract the product of arc pipeline section out,
The present apparatus is simple in construction, ingenious in design, and practical feasibility is high.
When specifically used, for convenience of the present invention is understood, the present apparatus be divided into the demoulding, two parts of matched moulds and is described；
Matched moulds：As shown in Figure 7, Figure 8, before matched moulds, sliding block slides into the high order end of guide recess, correspondingly, and core is also under
The left side of die body, actuator driving L-type pull bar is turned right motion, and because guide channel is inclined straight channel, L-type pull bar is being moved to right
While, with upward displacement, the right side for being embodied in bar segment two projects through right inwall promotion sliding block along guiding groove fortune
Dynamic, the upper plane of bar segment two and the upper wall of link slot are gradually disengaged, and the situation after complete matched moulds is as shown in Fig. 1, Fig. 6.
The demoulding：After complete matched moulds, upper die body is fastened with lower mold body, and arc is formed between core, upper die body and lower mold body
The forming part of pipeline section, after the fluid media (medium) of fusing solidifies between upper die body and lower mold body, removes upper die body, L-type pull bar is driving
It is moved to the left under moving part effect along guide channel, because guide rail is inclined straight channel, L-type pull bar is same what is be moved to the left
When with downward displacement, the left side for being embodied in bar segment two projects through left inside wall and pulls sliding block along being oriented to concave slot sports, bar
Two upper plane of section and the upper wall of link slot are gradually drawn close, when sliding block leaves guiding groove completely, upper wall and upper plane contact,
Sliding block is supported by L-type pull bar, and after the core being fixedly connected with a slide block departs from lower mold body, the product with arc pipeline section is by ejecting
Mechanism is ejected.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., should be included in the scope of the protection.
Claims (6)
1. one kind bending cylindrical mandrel withdrawing device, including upper die body, it is characterised in that also include：
Lower mold body (1), the lower mold body (1) surrounds with the upper die body to be added on the internal forming cavity for sky, the lower mold body (1)
Work has curved guide recess (7)；
Sliding block (5), the sliding block (5) is bulk, and the sliding block (5) is located at the upper left of the lower mold body (1), the sliding block
(5) there is circular arc bottom (6), the circular arc bottom (6) matches with the guide recess (7), is machined with the lower-left of the sliding block (5)
Link slot (8), the link slot (8) is divided into left inside wall (81), upper wall (82), right inwall (83)；
Core (4), the core (4) is arc pipeline section shape, and the core (4) is fixedly connected on the right-hand member of the sliding block (5), institute
State the shape of core (4) and the internal structure of the product (3) with arc pipeline section coincide, the arc pipeline section of the core (4) with
The arc of the guide recess (7) is the partial arc of concentric circles；
Guide pad (10), the guide pad (10) is fixedly connected on the left side of the lower mold body (1), and the guide pad (10) is internal
Guide channel (11) is machined with, the guide channel (11) is straight channel, and the straight channel is in certain inclination angle with horizontal direction；
L-type pull bar (9), the L-type pull bar (9) is divided into orthogonal bar segment one (91), bar segment two (92), the bar segment one
(91) it is installed in the guide channel (11), the bar segment two (92) is embedded in the link slot (6), the bar segment two
(92) low order end is divided into left raised (921), upper plane (922), right raised (923).
2. a kind of bending cylindrical mandrel withdrawing device according to claim 1, it is characterised in that：The guide recess (7)
Both sides are also machined with guide groove (71), and the both sides of the circular arc bottom (6) are extended with convex edge (61).
3. a kind of bending cylindrical mandrel withdrawing device according to claim 2, it is characterised in that：The guide groove (71) with
Convex edge (61) matching.
4. a kind of bending cylindrical mandrel withdrawing device according to claim 1, it is characterised in that：It is described that there is arc pipeline section
Product (3) lower section be equipped with ejecting mechanism (2).
5. a kind of bending cylindrical mandrel withdrawing device according to claim 1, it is characterised in that：The guide channel (11)
Extended line and the arc of the guide recess (7) it is tangent.
6. a kind of bending cylindrical mandrel withdrawing device according to claim 1, it is characterised in that：The bar segment one (91) is left
End is further connected with actuator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710308799.4A CN107030997B (en) | 2017-05-04 | 2017-05-04 | A kind of bending cylindrical mandrel withdrawing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710308799.4A CN107030997B (en) | 2017-05-04 | 2017-05-04 | A kind of bending cylindrical mandrel withdrawing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107030997A true CN107030997A (en) | 2017-08-11 |
| CN107030997B CN107030997B (en) | 2019-01-29 |
Family
ID=59537336
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710308799.4A Active CN107030997B (en) | 2017-05-04 | 2017-05-04 | A kind of bending cylindrical mandrel withdrawing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107030997B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61248716A (en) * | 1985-04-26 | 1986-11-06 | Kyowa Kogyo Kk | Method and device for molding u-shape hollow body |
| CN201998362U (en) * | 2010-12-31 | 2011-10-05 | 深圳市立品塑胶模具制品有限公司 | Circular arc core-pulling device |
| CN202293216U (en) * | 2011-10-14 | 2012-07-04 | 台州市黄岩西诺模具有限公司 | Arc-shaped core pulling mechanism of injection mold |
| CN102672908A (en) * | 2012-04-25 | 2012-09-19 | 扬州盛世模塑科技有限公司 | Core pulling structure for injection-molded arc product |
| CN203077560U (en) * | 2012-11-08 | 2013-07-24 | 浙江工商职业技术学院 | Core-pulling mechanism for elbow pipe mold core |
| CN203110268U (en) * | 2013-03-29 | 2013-08-07 | 荣昌盛塑胶模具（深圳）有限公司 | Mechanical cambered core pulling mechanism |
| CN104552684A (en) * | 2014-12-26 | 2015-04-29 | 东莞汇美模具制造有限公司 | Side core-pulling mechanism for arc-shaped structures |
-
2017
- 2017-05-04 CN CN201710308799.4A patent/CN107030997B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61248716A (en) * | 1985-04-26 | 1986-11-06 | Kyowa Kogyo Kk | Method and device for molding u-shape hollow body |
| CN201998362U (en) * | 2010-12-31 | 2011-10-05 | 深圳市立品塑胶模具制品有限公司 | Circular arc core-pulling device |
| CN202293216U (en) * | 2011-10-14 | 2012-07-04 | 台州市黄岩西诺模具有限公司 | Arc-shaped core pulling mechanism of injection mold |
| CN102672908A (en) * | 2012-04-25 | 2012-09-19 | 扬州盛世模塑科技有限公司 | Core pulling structure for injection-molded arc product |
| CN203077560U (en) * | 2012-11-08 | 2013-07-24 | 浙江工商职业技术学院 | Core-pulling mechanism for elbow pipe mold core |
| CN203110268U (en) * | 2013-03-29 | 2013-08-07 | 荣昌盛塑胶模具（深圳）有限公司 | Mechanical cambered core pulling mechanism |
| CN104552684A (en) * | 2014-12-26 | 2015-04-29 | 东莞汇美模具制造有限公司 | Side core-pulling mechanism for arc-shaped structures |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107030997B (en) | 2019-01-29 |
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| CB02 | Change of applicant information |
Address after: 314001 2 building, Photovoltaic Science Park, 1288 Kang He road, Xiuzhou District, Jiaxing, Zhejiang. Applicant after: Jiaxing University Address before: 314001 Yuexiu South Road, Nanhu District, Jiaxing, Zhejiang Province, No. 56 Applicant before: Jiaxing University |
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