CN106001268A - Forming die in inner-core replaceable form - Google Patents
Forming die in inner-core replaceable form Download PDFInfo
- Publication number
- CN106001268A CN106001268A CN201610440429.1A CN201610440429A CN106001268A CN 106001268 A CN106001268 A CN 106001268A CN 201610440429 A CN201610440429 A CN 201610440429A CN 106001268 A CN106001268 A CN 106001268A
- Authority
- CN
- China
- Prior art keywords
- inner core
- panelling
- groove
- steady brace
- fixing
- 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
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/10—Die sets; Pillar guides
-
- 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
- B29C45/2673—Moulds with exchangeable mould parts, e.g. cassette moulds
- B29C45/2675—Mounting of exchangeable mould inserts
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Moulds, Cores, Or Mandrels (AREA)
- Joining Of Building Structures In Genera (AREA)
Abstract
The invention relates to a forming die in an inner-core replaceable form. The forming die comprises an upper die and a lower die which are mutually matched; the forming die further comprises a lower die backing plate which is fixedly arranged on the lower die and at least two fixed pull rods which can be movably arranged on the lower die backing plate; at least one inner core fielded panel is detachably arranged on each fixed pull rod; and at least one inner core for forming a product is arranged on each inner core fielded panel. According to the forming die disclosed by the invention, a movable inner core structure in a traditional die is modified into a relatively-fixed structure, so that the problem that the inner core is brought up and falls to crush a parting face of the lower die during die parting is solved, the service effect of the die is guaranteed to a maximum extent, and the service life of the die is prolonged. Meanwhile, the invention also adopts a quick-replaceable structure, so that the whole forming surface of the die can be quickly replaced, further the feeding and discharging time of products is saved, and the production efficiency of processing enterprises is greatly improved.
Description
Technical field
The present invention relates to a kind of mould, particularly relate to one and be capable of the quick-replaceable mould of mold core, belong to forming processing technology field.
Background technology
In forming processing technology field, its diel used or injection mold the most all include that upper mold and the lower mold being mutually matched, upper mold and lower intermode exist the die cavity for formed product.In part needs the course of processing of product of precise forming, its mould used will also include several inner cores.These inner cores can be placed directly in lower mold surface mostly, and the two is not fixed.So, will produce a problem, after i.e. mould matched moulds completes formed product, during mould die sinking carries out product blanking, described inner core is likely to follow product and is together taken up, it is easy to drop.The quality adding inner core is relatively large, and the inner core therefore dropped is easy to the die joint of mold damage lower mold, thus causes mould to damage, and shortens the mold use life-span.
Additionally, due to the relatively independent setting of inner core in existing mold, therefore in the installation of inner core and the operating process of product blanking, it is required for workman and operates the most one by one.Certainly, such mode of production is extremely inefficient, largely limits the speed of production of processing enterprise, have impact on the production efficiency of processing enterprise.
In sum, being relatively fixed of inner core in mould how is realized, it is to avoid during mould typing, inner core is taken up, dropping injures the problem of lower mold die joint by a crashing object, the efficiency of improving product loading and unloading simultaneously, just becomes those skilled in the art's problem demanding prompt solution.
Summary of the invention
In view of prior art exists drawbacks described above, the purpose of the present invention is to propose to one and be capable of mold core quick-replaceable inner core changeable type mould.
The purpose of the present invention, will be achieved by the following technical programs:
A kind of inner core changeable type mould, including the upper mold being mutually matched and lower mold, the steady brace also include the lower mold backing plate being fixedly installed in described lower mold and at least two, being movably disposed on described lower mold backing plate, it is detachably provided with at least one piece of inner core panelling on described steady brace, described inner core panelling is provided with at least one inner core for formed product.
Preferably, the upper surface of described lower mold backing plate is fixedly installed at least two, for fixing the fixing bolt of described steady brace, offering the pull bar matched with described fixing bolt on described steady brace and fix groove, described steady brace is fixed the cooperation of groove by described fixing bolt and pull bar and is completed its fixing with described lower mold backing plate.
Preferably, the lower end of described fixing bolt is affixed with described lower mold backing plate screw thread, and it is protruding that the upper end of described fixing bolt is provided with the first hat shape；Groove fixed by described pull bar is ribbon, it is parallel with the activity direction of described steady brace that the cell body bearing of trend of groove fixed by described pull bar, and the two ends that described pull bar is fixed inside groove along cell body bearing of trend are provided with the first clamping end face matched with described first hat shape projection；Described lower mold backing plate completes its fixing with described steady brace by protruding and the first clamping end face the cooperation of described first hat shape.
Preferably, described inner core is uniform to be arranged on described inner core panelling, and the bottom of described inner core is fixing with contour bolt to be connected, and described inner core panelling is provided through wear fixing through hole for described contour bolt, and described contour bolt passes described through hole；Offering the panelling matched with described contour bolt on described steady brace and fix groove, described inner core panelling is fixed the cooperation of groove by described contour bolt and panelling and is completed its fixing with described steady brace.
Preferably, the upper end of described contour bolt is affixed with described contour bolt thread, and it is protruding that the lower end of described contour bolt is provided with the second hat shape；Groove fixed by described panelling is ribbon, it is parallel with the activity direction of described steady brace that the cell body bearing of trend of groove fixed by described panelling, and one end that described panelling is fixed inside groove along cell body bearing of trend is provided with the second clamping end face matched with described second hat shape projection；Described inner core panelling completes its fixing with described steady brace by protruding and the second clamping end face the cooperation of described second hat shape.
Preferably, to fix the bearing of trend of groove consistent with the bearing of trend that groove fixed by described panelling for described pull bar.
Preferably, the height of described contour bolt matches with the thickness of described inner core panelling and steady brace.
Preferably, it is additionally provided with at least two between described lower mold backing plate and described steady brace, holds out against spring for what mould was fixed further.
Preferably, described lower mold backing plate offers spring fixing groove, described in hold out against spring and be arranged in described spring fixing groove, described in hold out against that one end of spring touches with described lower mold backing plate, the other end touches with described steady brace.
The prominent effect of the present invention is: the movable core arrangement in traditional moulds is revised as being relatively fixed formula structure by the present invention, when avoiding mould typing, inner core is taken up, drop the problem injuring lower mold die joint by a crashing object, ensure that mold use effect to greatest extent, extend the mold use life-span.Meanwhile, the present invention additionally uses a kind of quick-change type structure so that the whole forming surface of mould can be quickly replaced, thus has saved the time of product loading and unloading, drastically increases the production efficiency of processing enterprise.Additionally, the processing mold of the present invention can be obtained by the simple reformation to existing processing mold, not only save mould production cost, further improves the practicality of the present invention.
In sum, present configuration is simple, be easily obtained and using effect is excellent, has the highest use and promotional value.
Hereinafter accompanying drawing the most in conjunction with the embodiments, is described in further detail the detailed description of the invention of the present invention, so that technical solution of the present invention is more readily understood, grasps.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the schematic cross-section of the present invention；
Wherein: 1, inner core panelling 2, inner core 3, contour bolt the 31, second hat shape projection 4, steady brace 41, groove the 411, first clamping end face 42 fixed by pull bar, groove the 421, second clamping end face 5 fixed by panelling, lower mold backing plate 6, fixing bolt the 61, first hat shape projection 7, hold out against spring.
Detailed description of the invention
Present invention is disclosed one and be capable of mold core quick-replaceable inner core changeable type mould.
As shown in Figure 1 and 2, a kind of inner core changeable type mould, including the upper mold being mutually matched and lower mold, the steady brace 4 also include the lower mold backing plate 5 being fixedly installed in described lower mold and at least two, being movably disposed on described lower mold backing plate 5, it is detachably provided with at least one piece of inner core panelling 1 on described steady brace 4, described inner core panelling 1 is provided with at least one inner core 2 for formed product.
The upper surface of described lower mold backing plate 5 is fixedly installed at least two, for fixing the fixing bolt 6 of described steady brace 4, offering the pull bar matched with described fixing bolt 6 on described steady brace 4 and fix groove 41, described steady brace 4 is fixed the cooperation of groove 41 by described fixing bolt 6 and pull bar and is completed its fixing with described lower mold backing plate 5.
Herein it should be noted that described steady brace 4 and the quantity of inner core panelling 1 and set-up mode thereof all should need depending on concrete processing and further determine that.And described inner core panelling 1 can be many list structures or a monoblock platy structure, in the present embodiment, described inner core panelling 1 is in many list structures, and described inner core panelling 1 is vertically arranged with described steady brace 4.Such set-up mode is to fix to preferably complete mould.
The lower end of described fixing bolt 6 is affixed with described lower mold backing plate 5 screw thread, and the upper end of described fixing bolt 6 is provided with the first hat shape projection 61；Described pull bar fixes groove 41 in ribbon, it is parallel with the activity direction of described steady brace 4 that the cell body bearing of trend of groove 41 fixed by described pull bar, and described pull bar is fixed the internal two ends along cell body bearing of trend of groove 41 and is provided with the first clamping end face 411 matched with described first hat shape projection 61；Described lower mold backing plate 5 completes its fixing with described steady brace 4 by the cooperation of described first hat shape protruding 61 and the first clamping end face 411.
Described inner core 2 is uniform to be arranged on described inner core panelling 1, and the bottom of described inner core 2 is fixing with contour bolt 3 to be connected, and described inner core panelling 1 is provided through wear fixing through hole for described contour bolt 3, and described contour bolt 3 is through described through hole；Offering the panelling matched with described contour bolt 3 on described steady brace 4 and fix groove 42, described inner core panelling 1 is fixed the cooperation of groove 42 by described contour bolt 3 and panelling and is completed its fixing with described steady brace 4.
Also, it should be noted in the present embodiment, described inner core 2 is in rectangular distribution, and such set-up mode can not only promote the working (machining) efficiency of mould to greatest extent, can also ensure that the fixed effect of described inner core panelling 1 simultaneously.
The upper end of described contour bolt is affixed with described contour bolt 3 screw thread, and the lower end of described contour bolt 3 is provided with the second hat shape projection 31；Described panelling fixes groove 42 in ribbon, it is parallel with the activity direction of described steady brace 4 that the cell body bearing of trend of groove 42 fixed by described panelling, and described panelling is fixed the internal one end along cell body bearing of trend of groove 42 and is provided with the second clamping end face 421 matched with described second hat shape projection 31；Described inner core panelling 1 completes its fixing with described steady brace 4 by the cooperation of described second hat shape protruding 31 and the second clamping end face 421.
The bearing of trend that groove 41 fixed by described pull bar is consistent with the bearing of trend that groove 42 fixed by described panelling.
The height of described contour bolt 3 matches with the thickness of described inner core panelling 1 and steady brace 4.
It is additionally provided with at least two between described lower mold backing plate 5 and described steady brace 4, holds out against spring 7 for what mould was fixed further.In the present embodiment, it is provided with described in three below every described steady brace 4 and holds out against spring 7.Offer spring fixing groove on described lower mold backing plate 5, described in hold out against spring 7 and be arranged in described spring fixing groove, described in hold out against that one end of spring 7 touches with described lower mold backing plate 5, the other end touches with described steady brace 4.
Specifically, the height of described contour bolt 3 it suffices that mould in the assembled state, described inner core 2 just completes to fix.The described such length of contour bolt 3 is arranged also for the fixed effect being further ensured that mould.
The operation principle of the present invention described briefly below, first described inner core panelling 1, steady brace 4 and lower mold backing plate 5 are placed by operator by order from top to bottom, and ensureing that described fixing bolt 6 stretches into described pull bar and fixes in groove 41, described contour bolt 3 stretches into described panelling and fixes in groove 42.Pull described steady brace 4 with backward side, make described first hat shape protruding 61 and the first clamping end face 411 complete clamping, described second hat shape protruding 31 and the second clamping end face 421 and complete clamping, thus complete the fixing of whole mould.When mould use is complete or needs to adjust, then pull described steady brace 4 to opposite side, make described second hat shape protruding 31 and the second clamping end face 421 depart from, thus realize described inner core panelling 1 and the separation of steady brace 4.Now operator can need to be replaced described inner core panelling 1 according to processing.
Movable core arrangement in traditional moulds is revised as being relatively fixed formula structure by the present invention, it is to avoid during mould typing, inner core is taken up, dropping injures the problem of lower mold die joint by a crashing object, ensure that mold use effect to greatest extent, extends the mold use life-span.Meanwhile, the present invention additionally uses a kind of quick-change type structure so that the whole forming surface of mould can be quickly replaced, thus has saved the time of product loading and unloading, drastically increases the production efficiency of processing enterprise.Additionally, the processing mold of the present invention can be obtained by the simple reformation to existing processing mold, not only save mould production cost, further improves the practicality of the present invention.
In sum, present configuration is simple, be easily obtained and using effect is excellent, has the highest use and promotional value.
The present invention still has numerous embodiments, all employing equivalents or equivalent transformation and all technical schemes of being formed, within all falling within protection scope of the present invention.
Claims (9)
1. an inner core changeable type mould, including the upper mold being mutually matched and lower mold, it is characterized in that: the steady brace (4) also include the lower mold backing plate (5) being fixedly installed in described lower mold and at least two, being movably disposed on described lower mold backing plate (5), it is detachably provided with at least one piece of inner core panelling (1) on described steady brace (4), described inner core panelling (1) is provided with at least one inner core (2) for formed product.
Inner core changeable type mould the most according to claim 1, it is characterized in that: the upper surface of described lower mold backing plate (5) is fixedly installed at least two, for fixing the fixing bolt (6) of described steady brace (4), offering the pull bar matched with described fixing bolt (6) on described steady brace (4) and fix groove (41), described steady brace (4) is fixed the cooperation of groove (41) by described fixing bolt (6) and pull bar and is completed its fixing with described lower mold backing plate (5).
Inner core changeable type mould the most according to claim 2, it is characterised in that: the lower end of described fixing bolt (6) is affixed with described lower mold backing plate (5) screw thread, and it is protruding (61) that the upper end of described fixing bolt (6) is provided with the first hat shape；Described pull bar fixes groove (41) in ribbon, it is parallel with the activity direction of described steady brace (4) that the cell body bearing of trend of groove (41) fixed by described pull bar, and described pull bar is fixed the internal two ends along cell body bearing of trend of groove (41) and is provided with the first clamping end face (411) matched with described first hat shape protruding (61)；Described lower mold backing plate (5) completes its fixing with described steady brace (4) by the cooperation of described first hat shape protruding (61) and the first clamping end face (411).
Inner core changeable type mould the most according to claim 3, it is characterized in that: described inner core (2) is uniform to be arranged on described inner core panelling (1), the bottom of described inner core (2) is fixing with contour bolt (3) to be connected, being provided through on described inner core panelling (1) wearing fixing through hole for described contour bolt (3), described contour bolt (3) passes described through hole；Offering the panelling matched with described contour bolt (3) on described steady brace (4) and fix groove (42), described inner core panelling (1) is fixed the cooperation of groove (42) by described contour bolt (3) and panelling and is completed its fixing with described steady brace (4).
Inner core changeable type mould the most according to claim 4, it is characterised in that: the upper end of described contour bolt is affixed with described contour bolt (3) screw thread, and it is protruding (31) that the lower end of described contour bolt (3) is provided with the second hat shape；Described panelling fixes groove (42) in ribbon, it is parallel with the activity direction of described steady brace (4) that the cell body bearing of trend of groove (42) fixed by described panelling, and described panelling is fixed the internal one end along cell body bearing of trend of groove (42) and is provided with the second clamping end face (421) matched with described second hat shape protruding (31)；Described inner core panelling (1) completes its fixing with described steady brace (4) by the cooperation of described second hat shape protruding (31) and the second clamping end face (421).
Inner core changeable type mould the most according to claim 5, it is characterised in that: the bearing of trend of groove (41) fixed by described pull bar, and fix the bearing of trend of groove (42) with described panelling consistent.
Inner core changeable type mould the most according to claim 5, it is characterised in that: the height of described contour bolt (3) matches with the thickness of described inner core panelling (1) and steady brace (4).
Inner core changeable type mould the most according to claim 1, it is characterised in that: it is additionally provided with at least two between described lower mold backing plate (5) and described steady brace (4), holds out against spring (7) for what mould was fixed further.
Inner core changeable type mould the most according to claim 1, it is characterized in that: on described lower mold backing plate (5), offer spring fixing groove, the described spring (7) that holds out against is arranged in described spring fixing groove, described in hold out against that one end of spring (7) touches with described lower mold backing plate (5), the other end touches with described steady brace (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610440429.1A CN106001268B (en) | 2016-06-20 | 2016-06-20 | Inner core changeable type molding die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610440429.1A CN106001268B (en) | 2016-06-20 | 2016-06-20 | Inner core changeable type molding die |
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| Publication Number | Publication Date |
|---|---|
| CN106001268A true CN106001268A (en) | 2016-10-12 |
| CN106001268B CN106001268B (en) | 2018-05-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610440429.1A Active CN106001268B (en) | 2016-06-20 | 2016-06-20 | Inner core changeable type molding die |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107116823A (en) * | 2017-05-26 | 2017-09-01 | 苏州驱指自动化科技有限公司 | Sucker stamping jig |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0839616A (en) * | 1994-07-27 | 1996-02-13 | Seikosha Co Ltd | Cassette type injection mold apparatus |
| US20130164406A1 (en) * | 2011-12-23 | 2013-06-27 | Hon Hai Precision Industry Co., Ltd. | Injection mold |
| CN203919568U (en) * | 2014-06-17 | 2014-11-05 | 舒视豪（福建）光学科技有限公司 | The PC eyeglass mfg. moulding die of simple and easy replacing core rod, die cavity |
| CN203973944U (en) * | 2014-07-17 | 2014-12-03 | 浙江荣新工贸有限公司 | The fixed mechanism that plastic pallet injection mold interchangeable is inserted |
| CN204749128U (en) * | 2015-06-17 | 2015-11-11 | 天津东明电子工业有限公司 | Novel plastic mold |
| ES2567097A1 (en) * | 2015-12-28 | 2016-04-19 | Seat, S.A. | Injection mold and method for manufacturing an optical module for a lighting device of a vehicle, and an optical module manufactured by said mold and/or by said method (Machine-translation by Google Translate, not legally binding) |
| CN205926804U (en) * | 2016-06-20 | 2017-02-08 | 苏州友隆橡塑精密制造有限公司 | Removable formula forming die of inner core |
-
2016
- 2016-06-20 CN CN201610440429.1A patent/CN106001268B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0839616A (en) * | 1994-07-27 | 1996-02-13 | Seikosha Co Ltd | Cassette type injection mold apparatus |
| US20130164406A1 (en) * | 2011-12-23 | 2013-06-27 | Hon Hai Precision Industry Co., Ltd. | Injection mold |
| CN203919568U (en) * | 2014-06-17 | 2014-11-05 | 舒视豪（福建）光学科技有限公司 | The PC eyeglass mfg. moulding die of simple and easy replacing core rod, die cavity |
| CN203973944U (en) * | 2014-07-17 | 2014-12-03 | 浙江荣新工贸有限公司 | The fixed mechanism that plastic pallet injection mold interchangeable is inserted |
| CN204749128U (en) * | 2015-06-17 | 2015-11-11 | 天津东明电子工业有限公司 | Novel plastic mold |
| ES2567097A1 (en) * | 2015-12-28 | 2016-04-19 | Seat, S.A. | Injection mold and method for manufacturing an optical module for a lighting device of a vehicle, and an optical module manufactured by said mold and/or by said method (Machine-translation by Google Translate, not legally binding) |
| CN205926804U (en) * | 2016-06-20 | 2017-02-08 | 苏州友隆橡塑精密制造有限公司 | Removable formula forming die of inner core |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107116823A (en) * | 2017-05-26 | 2017-09-01 | 苏州驱指自动化科技有限公司 | Sucker stamping jig |
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| CN106001268B (en) | 2018-05-22 |
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Denomination of invention: Replaceable inner core forming die Effective date of registration: 20221215 Granted publication date: 20180522 Pledgee: Bank of Jiangsu Co.,Ltd. Suzhou Branch Pledgor: SUZHOU YOULONG RUBBER AND PLASTIC PRECISION MANUFACTURING CO.,LTD. Registration number: Y2022320010808 |
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