CN105500623A - Front mold thread core pulling mold and machining method thereof - Google Patents
Front mold thread core pulling mold and machining method thereof Download PDFInfo
- Publication number
- CN105500623A CN105500623A CN201511010940.XA CN201511010940A CN105500623A CN 105500623 A CN105500623 A CN 105500623A CN 201511010940 A CN201511010940 A CN 201511010940A CN 105500623 A CN105500623 A CN 105500623A
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- Prior art keywords
- screw thread
- core pulling
- thread core
- injection moulding
- front mould
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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
- B29C45/26—Moulds
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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
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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
- B29C45/4005—Ejector constructions; Ejector operating mechanisms
-
- 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
- B29C2045/4063—Removing or ejecting moulded articles preventing damage to articles caused by the ejector
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses a front mold thread core pulling mold and a machining method thereof. The front mold thread core pulling mold comprises a front mold and a back mold, and further comprises a thread pulling core for forming a thread surface in an injection molding thread machining part, and an oil cylinder for driving the thread pulling core to rotationally move; the thread pulling core and the oil cylinder are both arranged in the front mold; the thread pulling core is in transmission connection with an output shaft of the oil cylinder by dint of a transmission piece; a thimble for ejecting out the injection molding thread machining part is arranged in the back mold; and the top end of the thimble is movably inserted in the back mold insert. The front mold thread core pulling mold guarantees no damage of an inclined guide surface in a thread port of the machining part in the product jacking process to the greatest extent by using a mode of separating the thread pulling core from the thimble. The front mold thread core pulling mold is stable in structure, excellent in mechanical logic relation, excellent in use effect and higher in machining precision, largely reduces the production costs of machining enterprises, and improves the productivity of the machining enterprises.
Description
Technical field
The present invention relates to a kind of injection mold core-pulling die and processing method thereof, be particularly useful for automatic forming and the demoulding of injection moulding screw thread process part, belong to injection molding field.
Background technology
Along with the fast development of die industry, technology is constantly reformed, and when processing different injecting products, its process adopted also is not quite similar.In the process of injection molding, if be provided with screw thread in injection-moulded plastic part, just directly thread core can not be extracted out and carry out forced demoulding, otherwise easily destroy the female thread structure of working of plastics.
Stripping means conventional is at present on thread core, configure an oil cylinder, oil cylinder drives thread core to deviate from from injection mold, deviating from of screw thread is realized by two actions, the rotation of core is driven by oil cylinder, the action of part spline push pedal is by Spring driving, but this mechanism, because spring force changes with stroke when push pedal released by spring, causes push pedal action and screw thread to deviate from axial displacement inconsistent.The reliability of this automatic threads demoulding mechanism is not enough, especially when reach is longer, the difficulty of this mechanism is larger, ejecting push plate initial stage spring force is crossed conference and is caused screw thread to drag flower, eject later stage ejecting force deficiency and cause push pedal and being separated of part and can not spline, so be difficult to make qualified products, also because it is unstable, impact is produced aborning.In addition; in existing screw thread injection moulding apparatus, screw thread core pulling and push rod are all arranged at the homonymy of mould, and namely the two is arranged in patrix or counterdie simultaneously; such set-up mode not only easily causes above-mentioned screw thread to drag colored situation, also limit the range of work of device simultaneously.Specifically, a kind of for the internal thread machining part in medicine equipment, its upper end is with inclined guide surface, and its structure with the screw thread mouth place of spigot surface one end is very weak, if therefore adopt existing processing unit (plant) to carry out the shaping and demoulding, be easy to cause the inclined guide surface of injection moulding screw thread process part to be damaged.
Chinese patent CN103144256A discloses a kind of screw thread core pulling mould, a screw thread fuse is also provided with in core rod, the lower end of described screw thread fuse connects a turning cylinder, the lower end of described turning cylinder is fed through counterdie and lower mold holder rotational positioning in base, the side of described base is provided with driving mechanism, and described driving machine to be in transmission connection turning cylinder by driving-belt.Although the technical scheme of this patent can realize the technique effect of the injection moulding screw thread process part demoulding, be in use just very easy to find the program and there is above-mentioned two problems, namely eject operation and be difficult to control, easily cause workpiece screw thread to drag flower; And be easy to cause the inclined guide surface of injection moulding screw thread process part to be damaged.
Summary of the invention
In view of prior art exists above-mentioned defect, the object of the invention is to propose a kind of the front mould screw thread core pulling mould and the processing method thereof that are applicable to the shaping and demoulding of injection moulding screw thread process part.
Object of the present invention, will be achieved by the following technical programs:
A kind of front mould screw thread core pulling mould, comprise front mould and rear mold, described front mould internal fixtion is provided with front mould insert, and described rear mold internal fixtion is provided with rear mold insert, and described front mould insert has coordinated injection moulding screw thread process part external profile surface shaping with rear mold insert;
Also comprise for the shaping screw thread core pulling of injection moulding screw thread process part inner threaded surface and for driving the oil cylinder of described screw thread core pulling rotary motion, described screw thread core pulling and oil cylinder are all arranged in described front mould, and described screw thread core pulling is in transmission connection by the output shaft of driving member and described oil cylinder;
Be provided with the thimble ejected for injection moulding screw thread process part in described rear mold, the top of described thimble is arranged in described rear mold insert movably.
Preferably, described front mould comprises from top to bottom superimposed front die holder, front backing plate and the front template be fixedly installed successively, and described front mould insert is fixedly installed in described front template.
Preferably, described front die holder internal fixtion is provided with the copper guide pin bushing for leading, and the top of described screw thread core pulling is arranged in described copper guide pin bushing movably.
Preferably, described front backing plate internal fixtion is provided with the screw thread facing for guiding described screw thread core pulling to move, the circumferential side wall of described screw thread core pulling is provided with the guide thread matched with described screw thread facing, the flank of described guide thread and described screw thread facing inwall screws, and described guide thread coordinates with screw thread facing the axially-movable realizing described screw thread core pulling.
Preferably, described driving member comprises the driving rack be fixedly connected on described oil cylinder output shaft and the travelling gear be fixedly installed in described screw thread core pulling circumferential side wall, and described travelling gear engages with the driving cog on described driving rack.
Preferably, described front template internal fixtion is provided with the bearing block for assisting described screw thread core pulling axially-movable, ball bearing is provided with in described bearing block, described screw thread core pulling is arranged in described bearing block, the circumferential side wall of described ball bearing and described screw thread core pulling touches, and the top of described bearing block has coordinated the restriction to described screw thread core pulling movement travel with the bottom of described travelling gear.
Preferably, the bottom of described screw thread core pulling is provided with for injection moulding screw thread process part inner threaded surface injection molding screw thread and for the shaping circular cone of injection moulding screw thread process part inclined guide surface.
Preferably, the circumferential side wall of described screw thread core pulling bottom being provided with the transition conical surface for connecting described injection moulding screw thread and circular cone, offering the gathering sill for leading in described front mould insert, described gathering sill madial wall and the described transition conical surface match.
Preferably, described rear mold comprises the rear pattern plate of superimposed setting successively from top to bottom, rear backing plate and rear die holder, described rear pattern plate is connected with described rear backing plate by spring lever, described rear backing plate is fixedly connected with rear die holder, is provided with the liftout attachment for driving described thimble to move below described rear backing plate;
Described rear mold insert is fixedly installed in described rear pattern plate, and the bottom of described thimble is fixedly installed in described rear backing plate, and the top of described thimble is arranged in described rear mold insert movably, and the top of described thimble and the bottom of injection moulding screw thread process part match.
Present invention further teaches a kind of processing method of front mould screw thread core pulling mould, comprise the steps:
S1, mold-closing injection step: according to treating that the specification of injection moulding screw thread process part selects corresponding front mould insert, rear mold insert and screw thread core pulling, after the installation of each parts, front mould and rear mold close immediately and complete the injection moulding of screw thread process part;
S2, screw thread demoulding step: after injection moulding screw thread process part suitably cools, oil cylinder operates immediately and drives described screw thread core pulling to be rotated, under the cooperation of guide thread and screw thread facing, the die holder direction motion forward of described screw thread core pulling, the injection moulding screw thread of described screw thread core pulling bottom and the inner threaded surface rotating separation of injection moulding screw thread process part, described front mould is opened immediately, completes the demoulding of injection moulding screw thread process part;
S3, eject blanking step: after the screw thread demoulding completes, rear backing plate under the effect of liftout attachment to the motion of front mould direction, drive thimble to move immediately and complete injection moulding screw thread process part eject blanking, after blanking completes, liftout attachment quits work, under the effect of spring lever, described rear backing plate resets, and drives described thimble together to reset, described front mould and rear mold close again, described oil cylinder again operates and drives described screw thread core pulling to reset, and after all member reset, carries out mold-closing injection next time.
Outstanding effect of the present invention is: the present invention completes automatic forming and the demoulding of injection moulding screw thread process part by gear-driven mode, effectively prevent because screw thread core pulling rotates smooth that injection moulding screw thread process part screw thread in knockout course that is that cause is dragged colored phenomenon.Meanwhile, the present invention adopts mode screw thread core pulling and thimble are provided separately to ensure that to greatest extent in the process that the inclined guide surface at workpiece screw thread mouth place ejects at product not to be damaged.In addition, Stability Analysis of Structures of the present invention, machine logic relation are excellent, not only have good result of use and higher machining accuracy, and considerably reduce the production cost of processing enterprise, improve the production efficiency of processing enterprise.
Below just accompanying drawing in conjunction with the embodiments, is described in further detail the specific embodiment of the present invention, is easier to understand, grasp to make technical solution of the present invention.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is partial structurtes enlarged diagram of the present invention;
Wherein: 1, front die holder 2, front backing plate 3, front template 4, rear pattern plate 5, rear backing plate 6, rear die holder 7, copper guide pin bushing 8, screw thread facing 9, bearing block 10, front mould insert 11, rear mold insert 12, spring lever 13, screw thread core pulling 14, thimble 15, oil cylinder 16, driving rack 17, guide thread 18, travelling gear 19, injection moulding screw thread 20, circular cone 21, the transition conical surface 22, gathering sill.
Detailed description of the invention
Present invention is disclosed a kind of the front mould screw thread core pulling mould and the processing method thereof that are applicable to the shaping and demoulding of injection moulding screw thread process part.
As shown in Fig. 1 ~ Fig. 2, a kind of front mould screw thread core pulling mould, comprise front mould and rear mold, described front mould internal fixtion is provided with front mould insert 10, described rear mold internal fixtion is provided with rear mold insert 11, and described front mould insert 10 has coordinated injection moulding screw thread process part external profile surface shaping with rear mold insert 11.
Also comprise for the shaping screw thread core pulling 13 of injection moulding screw thread process part inner threaded surface and for driving the oil cylinder 15 of described screw thread core pulling 13 rotary motion, described screw thread core pulling 13 and oil cylinder 15 are all arranged in described front mould, and described screw thread core pulling 13 is in transmission connection by the output shaft of driving member and described oil cylinder 15.
Be provided with the thimble 14 ejected for injection moulding screw thread process part in described rear mold, the top of described thimble 14 is arranged in described rear mold insert 11 movably.
Described front mould comprises from top to bottom superimposed front die holder 1, front backing plate 2 and the front template 3 be fixedly installed successively, and described front mould insert 10 is fixedly installed in described front template 3.
Described front die holder 1 internal fixtion is provided with the copper guide pin bushing 7 for leading, and the top of described screw thread core pulling 13 is arranged in described copper guide pin bushing 7 movably.The effect of described copper guide pin bushing 7 is the direction of motion ensureing described screw thread core pulling 13, and makes it remain vertical.
Described front backing plate 2 internal fixtion is provided with the screw thread facing 8 for guiding described screw thread core pulling 13 to move, the circumferential side wall of described screw thread core pulling 13 is provided with the guide thread 17 matched with described screw thread facing 8, described guide thread 17 screws with the flank of described screw thread facing 8 inwall, and described guide thread 17 coordinates with screw thread facing 8 axially-movable realizing described screw thread core pulling 13.
Described driving member comprises the driving rack 16 be fixedly connected on described oil cylinder 15 output shaft and the travelling gear 18 be fixedly installed in described screw thread core pulling 13 circumferential side wall, and described travelling gear 18 engages with the driving cog on described driving rack 16.In the actual use procedure of mould, operator can be realized by the delivery stroke controlling described oil cylinder 15 moving up and down to described screw thread core pulling 13 control of stroke, and functional relation depends on the actual size of each parts accurately therebetween, in this no limit.
Described front template 3 internal fixtion is provided with the bearing block 9 for assisting the axially-movable of described screw thread core pulling 13, ball bearing is provided with in described bearing block 9, described screw thread core pulling 13 is arranged in described bearing block 9, the circumferential side wall of described ball bearing and described screw thread core pulling 13 touches, and the top of described bearing block 9 has coordinated the restriction to the movement travel of described screw thread core pulling 13 with the bottom of described travelling gear 18.Refer to the restriction of described screw thread core pulling 13 movement travel is provided with down to point to the axially-movable stroke of described screw thread core pulling 13 herein, such setting ensure that the stroke of described screw thread core pulling 13 axially-movable downwards, the damage that the inner threaded surface that it also avoid injection moulding screw thread process part causes because described screw thread core pulling 13 excessively moves downward.
The bottom of described screw thread core pulling 13 is provided with for the inner threaded surface injection molding screw thread 19 of injection moulding screw thread process part and for the shaping circular cone 20 of injection moulding screw thread process part inclined guide surface.In the present embodiment, described circular cone 20 completes the injection mo(u)lding to injection moulding screw thread process part inclined guide surface from top, described thimble 14 then completes the demoulding of injection moulding screw thread process part from below, and such setting fundamentally ensure that the inclined guide surface of injection moulding screw thread process part in knockout course is not damaged.
The circumferential side wall of described screw thread core pulling 13 bottom is provided with the transition conical surface 21 for connecting described injection moulding screw thread 19 and circular cone 20, offer the gathering sill 22 for leading in described front mould insert 10, described gathering sill 22 madial wall and the described transition conical surface 21 match.Specifically, the gradient of described gathering sill 22 madial wall is identical with the gradient of the described transition conical surface 21.The object of such setting is when described screw thread core pulling 13 moves downward, setting by described gathering sill 22 can realize guiding to described screw thread core pulling 13 and location fast, thus ensure that described screw thread core pulling 13 accurately can be positioned the center of described front mould insert 10 and rear mold insert 11 die cavity therebetween, guarantee injection moulding effect.
Described rear mold comprises the rear pattern plate 4 of superimposed setting successively from top to bottom, rear backing plate 5 and rear die holder 6, described rear pattern plate 4 is connected with described rear backing plate 5 by spring lever 12, described rear backing plate 5 is fixedly connected with rear die holder 6, is provided with the liftout attachment for driving described thimble 14 to move below described rear backing plate 5.Do not limit for described liftout attachment in the present embodiment, described liftout attachment can be oil cylinder, cylinder or motor.
Described rear mold insert 11 is fixedly installed in described rear pattern plate 4, the bottom of described thimble 14 is fixedly installed in described rear backing plate 5, the top of described thimble 14 is arranged in described rear mold insert 11 movably, and the top of described thimble 14 and the bottom of injection moulding screw thread process part match.
In addition, it should be noted that, the above-mentioned mode that is fixedly connected with includes but not limited to that bolt connects, tenon connection and bonding, is preferably bolt in the present embodiment and connects.
The processing method of above-mentioned front mould screw thread core pulling mould, comprises the steps:
S1, mold-closing injection step: according to treating that the specification of injection moulding screw thread process part selects corresponding front mould insert 10, rear mold insert 11 and screw thread core pulling 13, after the installation of each parts, front mould and rear mold close immediately and complete the injection moulding of screw thread process part;
S2, screw thread demoulding step: after injection moulding screw thread process part suitably cools, oil cylinder 15 operates immediately and drives described screw thread core pulling 13 to be rotated, under the cooperation of guide thread 17 and screw thread facing 8, the die holder 1 direction motion forward of described screw thread core pulling 13, the injection moulding screw thread 19 of described screw thread core pulling 13 bottom and the inner threaded surface rotating separation of injection moulding screw thread process part, described front mould is opened immediately, completes the demoulding of injection moulding screw thread process part;
S3, eject blanking step: after the screw thread demoulding completes, rear backing plate 5 moves to front mould direction under the effect of liftout attachment, drive thimble 14 to move immediately and complete injection moulding screw thread process part eject blanking, after blanking completes, liftout attachment quits work, under the effect of spring lever 12, described rear backing plate 5 resets, and drive described thimble 14 together to reset, described front mould and rear mold close again, described oil cylinder 15 again operates and drives described screw thread core pulling 13 to reset, and after all member reset, carries out mold-closing injection next time.
The present invention completes automatic forming and the demoulding of injection moulding screw thread process part by gear-driven mode, effectively prevent because screw thread core pulling rotates smooth that injection moulding screw thread process part screw thread in knockout course that is that cause is dragged colored phenomenon.Meanwhile, the present invention adopts mode screw thread core pulling and thimble are provided separately to ensure that to greatest extent in the process that the inclined guide surface at workpiece screw thread mouth place ejects at product not to be damaged.In addition, Stability Analysis of Structures of the present invention, machine logic relation are excellent, not only have good result of use and higher machining accuracy, and considerably reduce the production cost of processing enterprise, improve the production efficiency of processing enterprise.
The present invention still has numerous embodiments, all employing equivalents or equivalent transformation and all technical schemes formed, and all drops within protection scope of the present invention.
Claims (10)
1. a front mould screw thread core pulling mould, comprise front mould and rear mold, it is characterized in that: described front mould internal fixtion is provided with front mould insert (10), described rear mold internal fixtion is provided with rear mold insert (11), and described front mould insert (10) has coordinated injection moulding screw thread process part external profile surface shaping with rear mold insert (11);
Also comprise for the shaping screw thread core pulling (13) of injection moulding screw thread process part inner threaded surface and for driving the oil cylinder (15) of described screw thread core pulling (13) rotary motion, described screw thread core pulling (13) and oil cylinder (15) are all arranged in described front mould, and described screw thread core pulling (13) is in transmission connection by the output shaft of driving member and described oil cylinder (15);
Be provided with the thimble (14) ejected for injection moulding screw thread process part in described rear mold, the top of described thimble (14) is arranged in described rear mold insert (11) movably.
2. front mould screw thread core pulling mould according to claim 1, it is characterized in that: described front mould comprises from top to bottom superimposed front die holder (1), front backing plate (2) and the front template (3) be fixedly installed successively, and described front mould insert (10) is fixedly installed in described front template (3).
3. front mould screw thread core pulling mould according to claim 2, is characterized in that: described front die holder (1) internal fixtion is provided with the copper guide pin bushing (7) for leading, and the top of described screw thread core pulling (13) is arranged in described copper guide pin bushing (7) movably.
4. front mould screw thread core pulling mould according to claim 2, it is characterized in that: described front backing plate (2) internal fixtion is provided with the screw thread facing (8) for guiding described screw thread core pulling (13) to move, the circumferential side wall of described screw thread core pulling (13) is provided with the guide thread (17) matched with described screw thread facing (8), described guide thread (17) screws with the flank of described screw thread facing (8) inwall, and described guide thread (17) coordinates with screw thread facing (8) axially-movable realizing described screw thread core pulling (13).
5. front mould screw thread core pulling mould according to claim 2, it is characterized in that: described driving member comprises the driving rack (16) be fixedly connected on described oil cylinder (15) output shaft and the travelling gear (18) be fixedly installed in described screw thread core pulling (13) circumferential side wall, and described travelling gear (18) engages with the driving cog on described driving rack (16).
6. front mould screw thread core pulling mould according to claim 5, it is characterized in that: described front template (3) internal fixtion is provided with the bearing block (9) for assisting described screw thread core pulling (13) axially-movable, described bearing block is provided with ball bearing in (9), described screw thread core pulling (13) is arranged in described bearing block (9), the circumferential side wall of described ball bearing and described screw thread core pulling (13) touches, and the top of described bearing block (9) has coordinated the restriction to described screw thread core pulling (13) movement travel with the bottom of described travelling gear (18).
7. front mould screw thread core pulling mould according to claim 1, is characterized in that: the bottom of described screw thread core pulling (13) is provided with for injection moulding screw thread process part inner threaded surface injection molding screw thread (19) and for the shaping circular cone (20) of injection moulding screw thread process part inclined guide surface.
8. front mould screw thread core pulling mould according to claim 7, it is characterized in that: the circumferential side wall of described screw thread core pulling (13) bottom is provided with the transition conical surface (21) for connecting described injection moulding screw thread (19) and circular cone (20), offer the gathering sill (22) for leading in described front mould insert (10), described gathering sill (22) madial wall and the described transition conical surface (21) match.
9. front mould screw thread core pulling mould according to claim 1, it is characterized in that: described rear mold comprises the rear pattern plate (4) of superimposed setting successively from top to bottom, rear backing plate (5) and rear die holder (6), described rear pattern plate (4) is connected with described rear backing plate (5) by spring lever (12), described rear backing plate (5) is fixedly connected with rear die holder (6), and described rear backing plate (5) below is provided with the liftout attachment for driving described thimble (14) to move;
Described rear mold insert (11) is fixedly installed in described rear pattern plate (4), the bottom of described thimble (14) is fixedly installed in described rear backing plate (5), the top of described thimble (14) is arranged in described rear mold insert (11) movably, and the top of described thimble (14) and the bottom of injection moulding screw thread process part match.
10. the processing method of front mould screw thread core pulling mould, is characterized in that, comprises the steps:
S1, mold-closing injection step: according to treating that the specification of injection moulding screw thread process part selects corresponding front mould insert (10), rear mold insert (11) and screw thread core pulling (13), after the installation of each parts, front mould and rear mold close immediately and complete the injection moulding of screw thread process part;
S2, screw thread demoulding step: after injection moulding screw thread process part suitably cools, oil cylinder (15) operates immediately and drives described screw thread core pulling (13) to be rotated, under the cooperation of guide thread (17) and screw thread facing (8), described screw thread core pulling (13) die holder (1) direction motion forward, the injection moulding screw thread (19) of described screw thread core pulling (13) bottom and the inner threaded surface rotating separation of injection moulding screw thread process part, described front mould is opened immediately, completes the demoulding of injection moulding screw thread process part;
S3, eject blanking step: after the screw thread demoulding completes, rear backing plate (5) moves to front mould direction under the effect of liftout attachment, drive thimble (14) to move immediately and complete injection moulding screw thread process part eject blanking, after blanking completes, liftout attachment quits work, under the effect of spring lever (12), described rear backing plate (5) resets, and drive described thimble (14) together to reset, described front mould and rear mold close again, described oil cylinder (15) again operates and drives described screw thread core pulling (13) to reset, after all member reset, carry out mold-closing injection next time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511010940.XA CN105500623A (en) | 2015-12-30 | 2015-12-30 | Front mold thread core pulling mold and machining method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511010940.XA CN105500623A (en) | 2015-12-30 | 2015-12-30 | Front mold thread core pulling mold and machining method thereof |
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| CN105500623A true CN105500623A (en) | 2016-04-20 |
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| CN201511010940.XA Pending CN105500623A (en) | 2015-12-30 | 2015-12-30 | Front mold thread core pulling mold and machining method thereof |
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| CN107413961A (en) * | 2017-09-04 | 2017-12-01 | 安徽新悦精密机械有限公司 | A kind of mold mechanism of quick core pulling |
| CN110405993A (en) * | 2019-08-22 | 2019-11-05 | 宁波汇模汽车部件有限公司 | A kind of preceding mould screw thread core pulling mechanism |
| CN112721054A (en) * | 2020-12-29 | 2021-04-30 | 广州市柏森塑料制品有限公司 | Internal thread working of plastics mold processing |
| CN114083756A (en) * | 2021-10-29 | 2022-02-25 | 常州仕唯普精密模具有限公司 | Mould with complicated screw thread suspension demoulding mechanism |
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| CN107413961A (en) * | 2017-09-04 | 2017-12-01 | 安徽新悦精密机械有限公司 | A kind of mold mechanism of quick core pulling |
| CN107413961B (en) * | 2017-09-04 | 2023-03-31 | 安徽新悦精密机械有限公司 | Mold machine of loosing core fast constructs |
| CN110405993A (en) * | 2019-08-22 | 2019-11-05 | 宁波汇模汽车部件有限公司 | A kind of preceding mould screw thread core pulling mechanism |
| CN112721054A (en) * | 2020-12-29 | 2021-04-30 | 广州市柏森塑料制品有限公司 | Internal thread working of plastics mold processing |
| CN114083756A (en) * | 2021-10-29 | 2022-02-25 | 常州仕唯普精密模具有限公司 | Mould with complicated screw thread suspension demoulding mechanism |
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Application publication date: 20160420 |