CN109093955B - Mold with three-time ejection mechanism and ejection method thereof - Google Patents
Mold with three-time ejection mechanism and ejection method thereof Download PDFInfo
- Publication number
- CN109093955B CN109093955B CN201811173221.3A CN201811173221A CN109093955B CN 109093955 B CN109093955 B CN 109093955B CN 201811173221 A CN201811173221 A CN 201811173221A CN 109093955 B CN109093955 B CN 109093955B
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- plate
- driven
- lower die
- ejector pin
- die
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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
- B29C45/40—Removing or ejecting moulded articles
- B29C45/4005—Ejector constructions; Ejector operating mechanisms
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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
- B29C2045/4084—Progressive ejection
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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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 provides a die with a three-time ejection mechanism, which comprises an upper die and a lower die, wherein the upper die comprises an upper die fixing plate and an upper die plate which are sequentially stacked from top to bottom, an upper die core is arranged on the upper die plate, the lower die comprises a lower die plate, a supporting plate, die legs and a lower die fixing plate which are sequentially stacked from top to bottom, a lower die core is arranged on the lower die plate, the upper die core and the lower die core are enclosed to form a forming die cavity, the lower die plate is connected with the three-time ejection mechanism, and the three-time ejection mechanism comprises an ejector plate, an ejector pin bottom plate, an ejector pin, an ox horn glue inlet, an ejection bolt, a return pin, a driven mechanism, a driven ejector plate, a driven ejector pin bottom plate and a circular insert. The invention also provides an ejection method of the die with the three-time ejection mechanism. The beneficial effects of the invention are as follows: the three-time ejection can be performed through the three-time ejection mechanism, so that the product deformation or glue breakage in the die cavity can be possibly caused by the enclasping force during one-time ejection.
Description
Technical Field
The invention relates to a mold, in particular to a mold with a three-time ejection mechanism and an ejection method thereof.
Background
The existing small plastic product with two layers of deep bone positions is easy to deform or break due to ejection of a die during molding.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a die with a three-time ejection mechanism and an ejection method thereof.
The invention provides a die with a three-time ejection mechanism, which comprises an upper die and a lower die, wherein the upper die comprises an upper die fixing plate and an upper die plate which are sequentially stacked from top to bottom, an upper die core is arranged on the upper die plate, the lower die comprises a lower die plate, a supporting plate, die feet and a lower die fixing plate which are sequentially stacked from top to bottom, the lower die plate is provided with a lower die core, the upper die core and the lower die core are enclosed to form a molding die cavity, the lower die plate is connected with the three-time ejection mechanism, the three-time ejection mechanism comprises an ejector plate, an ejector pin base plate, an ejector pin inlet, an ejector bolt, a return pin, a driven mechanism, a driven ejector plate, a driven ejector pin base plate and a round insert, the ejector pin inlet is arranged on the lower die core, the bottom of the ejector pin is arranged on the lower die fixing plate, the top end of the ejector pin penetrates through the ejector plate, the supporting plate, the lower die core reaches the driven ejector pin base plate, the driven ejector pin base plate and the driven ejector pin is sequentially connected with the top end of the driven ejector pin base plate, and the driven ejector pin is arranged on the top end of the round insert.
As a further improvement of the invention, the driven mechanism comprises a sloping plate, a padlock and an inductor, wherein the padlock is fixed on the thimble bottom plate, the sloping plate is fixed on the lower die fixing plate, a locking elastic mechanism is arranged on the driven thimble bottom plate and is connected with a sliding block, the sliding block is contacted with the sloping plate, the sliding block is in sliding connection with the driven thimble bottom plate, a lock hole is arranged on the sliding block, a hook is arranged on the padlock, the hook penetrates through the lock hole, and a sloping bump which drives the sliding block to slide and enables the hook to be separated from the lock hole is arranged on the sloping plate.
As a further improvement of the invention, the locking elastic mechanism comprises a spring, and the spring is clamped between the sliding block and the driven thimble bottom plate.
As a further improvement of the invention, the inductor is arranged on the driven thimble bottom plate, and when the hook is locked into the lock hole of the sliding block, the sliding block triggers the inductor.
As a further improvement of the invention, the top end of the lock hole is provided with a chamfer, and the bottom end of the hook is provided with a chamfer.
As a further improvement of the invention, thermocouples for measuring the mold temperature are arranged on the upper mold plate and the lower mold plate.
As a further improvement of the invention, the ejector plate, the ejector pin base plate, the driven ejector pin plate and the driven ejector pin base plate are sequentially stacked from top to bottom.
As a further improvement of the invention, a support column for preventing the large injection pressure template from deforming is arranged between the lower die fixing plate and the support plate.
As a further improvement of the invention, the upper die fixing plate is provided with an upper die heat insulation plate, and the lower die fixing plate is provided with a lower die heat insulation plate.
The invention also provides an ejection method of the die with the three-time ejection mechanism, which comprises the following steps based on the die with the three-time ejection mechanism:
s1, ejecting for the first time, pushing an ejector rod of an injection molding machine to push an ejector plate and an ejector pin bottom plate, so that an ejector pin ejects ox horn rubber material at a ox horn rubber inlet, and a product is separated from the ox horn rubber material;
s2, ejection is carried out for the second time, an ejection bolt and a return pin push the upper template, and a driven ejector pin plate and a driven ejector pin bottom plate are driven by a driven mechanism to enable the circular insert to move synchronously;
s3, third ejection, wherein the driven mechanism is separated, and the ejector plate and the ejector pin bottom plate drive the ejector pins to eject the product.
The beneficial effects of the invention are as follows: through the scheme, the three-time ejection can be performed through the three-time ejection mechanism, so that the product deformation or glue breakage in the die cavity can be possibly caused by the holding force during one-time ejection.
Drawings
FIG. 1 is a schematic view of a mold with a three-shot ejection mechanism according to the present invention.
FIG. 2 is a schematic side view of a mold with a three-shot ejection mechanism according to the present invention.
Fig. 3 is a schematic drawing of an open mold of a mold with a three-shot ejector mechanism according to the present invention.
Fig. 4 is a schematic view of a first ejection of a mold with a three-shot ejection mechanism according to the present invention.
Fig. 5 is a schematic view of a second ejection of a mold with a third ejection mechanism according to the present invention.
Fig. 6 is a third ejection schematic of a mold with a third ejection mechanism according to the present invention.
Fig. 7 is a schematic view of a driven mechanism of a mold with a triple ejector mechanism according to the present invention.
Description of the embodiments
The invention is further described with reference to the following description of the drawings and detailed description.
As shown in fig. 1 to 7, a mold with a three-time ejection mechanism comprises an upper mold and a lower mold, wherein the upper mold comprises an upper mold fixing plate 2 and an upper mold plate 4 which are sequentially stacked from top to bottom, an upper mold core 31 is arranged on the upper mold plate 4, the lower mold comprises a lower mold plate 5, a supporting plate 6, mold legs 9 and a lower mold fixing plate 11 which are sequentially stacked from top to bottom, the lower mold plate 5 has the function of a push plate, the lower mold plate 5 is provided with a lower mold core 32, the upper mold core 31 and the lower mold core 32 are surrounded to form a molding cavity for molding a product 33, the lower mold plate 5 is connected with the three-time ejection mechanism, the three-time ejection mechanism comprises an ejector plate 7, an ejector pin bottom plate 8, an ejector pin 12, a ox horn glue inlet 28, an ejector bolt 25, a return pin 24, a driven mechanism, a driven ejector pin 34, a driven ejector pin bottom plate 35 and a circular insert 15, a partition 14 is arranged outside the circular insert 15, the ox horn glue inlet 28 is arranged on the lower die core 32, the driven thimble bottom plate 35 is arranged on the lower die fixing plate 11, the thimble plate 7 is arranged on the thimble bottom plate 8, the bottom end of the thimble 12 is fixed on the thimble plate 7, the top end of the thimble 12 sequentially penetrates through the thimble plate 7, the supporting plate 6, the lower die plate 5 and the lower die core 32 to reach the ox horn glue inlet 28, the bottom end of the return needle 24 is fixed on the thimble plate 7, the top end of the return needle 24 is connected with the ejection bolt 25, the ejection bolt 25 is arranged on the lower die plate 5, the driven thimble plate 34 is arranged on the driven thimble bottom plate 35, the bottom end of the circular insert 15 is fixed on the driven thimble plate 34, the top end of the circular insert 15 sequentially penetrates through the driven thimble plate 34, the supporting plate 6, the lower die plate 5 and the lower die core 32 to reach the molding cavity, the driven ejector plate 34 is connected with the ejector plate 7 through the driven mechanism.
As shown in fig. 1 to 7, the driven mechanism includes a sloping plate 21, a padlock 22 and an inductor 20, the padlock 22 is fixed on the thimble bottom plate 8, the sloping plate 21 is fixed on the lower die fixing plate 11, a locking elastic mechanism is arranged on the driven thimble bottom plate 35, the locking elastic mechanism is connected with a sliding block 36, the sliding block 36 contacts with the sloping plate 21, the sliding block 36 is slidably connected with the driven thimble bottom plate 35, a lock hole is arranged on the sliding block 36, a hook is arranged on the padlock 22, the hook penetrates through the lock hole, and a sloping bump 210 for driving the sliding block 36 to slide and enabling the hook to be separated from the lock hole is arranged on the sloping plate 21.
As shown in fig. 1 to 7, the locking elastic mechanism includes a spring 37, and the spring 37 is sandwiched between the slider 36 and the driven thimble base plate 35.
As shown in fig. 1 to 7, the sensor 20 is disposed on the driven thimble base plate 35, and when the hook is locked into the lock hole of the slider 36, the slider 36 triggers the sensor 20.
As shown in fig. 1 to 7, the top end of the lock hole is provided with a chamfer, and the bottom end of the hook is provided with a chamfer, so that the hook is convenient to insert into the lock hole.
As shown in fig. 1 to 7, thermocouples 23 for measuring the mold temperature are respectively arranged on the upper mold plate 4 and the lower mold plate 5 and are used for monitoring the mold temperature, and the mold temperature is measured by the thermocouples 23, so that the benefit and the stable quality are effectively improved.
As shown in fig. 1 to 7, the ejector plate 8, the driven ejector plate 34, and the driven ejector plate 35 are stacked in this order from top to bottom.
As shown in fig. 1 to 7, a support column 16 for preventing the large injection pressure die plate from deforming is provided between the lower die fixing plate 11 and the support plate 6.
As shown in fig. 1 to 7, the upper mold fixing plate 2 is provided with an upper mold heat insulation plate 18, the lower mold fixing plate 11 is provided with a lower mold heat insulation plate 19, and the upper mold heat insulation plate 18 and the lower mold heat insulation plate 19 are used for heat insulation, so that the temperature stability is maintained.
As shown in fig. 1 to 7, an ejection method of a mold having a triple ejection mechanism performs the following steps based on the mold having a triple ejection mechanism as described in any one of the above:
s1, ejecting for the first time, an ejector rod of an injection molding machine pushes an ejector plate 7 and an ejector pin bottom plate 8, so that an ejector pin 12 ejects ox horn rubber material at an ox horn rubber inlet 28, and a product 33 is separated from the ox horn rubber material;
s2, ejection is carried out for the second time, the ejection bolt 25 and the return needle 24 push the upper template 4, and the driven ejector plate 34 and the driven ejector bottom plate 35 are driven by the driven mechanism to enable the circular insert 15 to move synchronously;
s3, third ejection, wherein the driven mechanism is separated, and the ejector pin plate 7 and the ejector pin bottom plate 8 drive the ejector pins 12 to eject the product 33.
As shown in figures 1 to 7, the mold with a three-time ejection mechanism and the ejection method thereof provided by the invention are characterized in that the mold is arranged on an injection molding machine, a positioning ring 1 is convenient for mold loading, an upper mold core 31 is filled with water, a lower mold core 32 is filled with water and heated, heat insulation is carried out through an upper mold heat insulation plate 18 and a lower mold heat insulation plate 19, the temperature stability is kept, a lower mold fixing plate 11 is connected with a water pipe joint 10, the mold temperature is measured through a thermocouple 23, the benefit and the stable quality are effectively improved, the mold temperature is reached after the mold is baked according to the requirements of a material table, injection molding is started, plastic enters a mold cavity between the upper mold core 31 and the lower mold core 32 through an injection molding pressure and passes through a sprue 3 to start molding a product 33, the mold is opened after waiting for cooling, the upper mold fixing plate 2 and the lower mold fixing plate 11 are completed before the mold is separated, the upper die and the lower die are separated through the core pulling mechanism 17 and the core pulling insert 13, the ejector rod of the injection molding machine pushes the ejector plate 7 and the ejector bottom plate 8 to push the ejector pin 12 to eject ox horn glue at the ox horn glue inlet 28, the ox horn glue is automatically separated from the ox horn glue inlet 15mm, the ejector bolt 25 and the return pin 24 push the lower die plate 5 to push the periphery of the product 33 by a distance of 25mm, the driven ejector plate 34 and the driven ejector bottom plate 35 are driven by the inclined plate 21 and the padlock 22 to move together, the padlock 22 is separated from the inclined plate 21, the ejector plate 7 and the ejector bottom plate 8 are directly ejected to drive the lower die plate 5 to eject 30mm, the driven ejector plate 34 and the driven ejector bottom plate 35 are not moved, the step of the die foot 9 is limited, the circular insert 15 is also kept motionless, the product 33 is relatively ejected, and finally the product can be taken out by a mechanical arm; the three-time ejection is used for relieving the holding force of one-time ejection so as to avoid the possibility of deformation and breaking of the product 33 in the die cavity; the die legs 9 have ejection space height, and the lower die returns to the original position; the support column 16 prevents the injection pressure large mold plate from deforming; the middle supporting guide post 26 and the middle supporting support 27 ensure that the ejector plate 7, the ejector pin base plate 8, the driven ejector pin plate 34 and the driven ejector pin base plate 35 are ejected smoothly, and the service life is ensured to be difficult to wear; finally, the inductor 20 confirms the position, and full-automatic production is realized.
The foregoing is a further detailed description of the invention in connection with the preferred embodiments, and it is not intended that the invention be limited to the specific embodiments described. It will be apparent to those skilled in the art that several simple deductions or substitutions may be made without departing from the spirit of the invention, and these should be considered to be within the scope of the invention.
Claims (7)
1. A die with a three-time ejection mechanism, characterized in that: comprises an upper die and a lower die, wherein the upper die comprises an upper die fixing plate and an upper die plate which are sequentially stacked from top to bottom, an upper die core is arranged on the upper die plate, the lower die comprises a lower die plate, a supporting plate, a die foot and a lower die fixing plate which are sequentially stacked from top to bottom, a lower die core is arranged on the lower die plate, the upper die core and the lower die core enclose a forming die cavity, the lower die plate is connected with a three-time ejection mechanism, the three-time ejection mechanism comprises an ejector plate, an ejector pin bottom plate, an ejector pin, an ox-horn glue inlet, an ejector bolt, a return pin, a driven mechanism, a driven ejector pin plate, a driven ejector pin bottom plate and a circular insert, the ox-horn glue inlet is arranged on the lower die core, the driven ejector pin bottom plate is arranged on the lower die fixing plate, the ejector pin bottom plate is fixed on the ejector pin bottom plate, the top of the thimble penetrates through the thimble plate, the supporting plate, the lower template and the lower die core in sequence to reach the ox horn glue inlet, the bottom end of the return needle is fixed on the thimble plate, the top end of the return needle is connected with the ejection bolt, the ejection bolt is arranged on the lower template, the driven thimble plate is arranged on the driven thimble bottom plate, the bottom end of the circular insert is fixed on the driven thimble plate, the top end of the circular insert penetrates through the driven thimble plate, the supporting plate, the lower template and the lower die core in sequence to reach the forming die cavity, the driven thimble plate is connected with the thimble plate through the driven mechanism, the driven mechanism comprises a sloping plate, a padlock and an inductor, the padlock is fixed on the thimble bottom plate, the sloping plate is fixed on the lower die fixing plate, a locking elastic mechanism is arranged on the driven thimble plate, the locking elastic mechanism is connected with a sliding block, the sliding block is in contact with the inclined plate, the sliding block is in sliding connection with the driven ejector pin bottom plate, a lock hole is formed in the sliding block, a hook is arranged on the padlock, the hook penetrates through the lock hole, the inclined plate is provided with a slant protrusion for driving the sliding block to slide and enabling the hook to deviate from the lock hole, the ejector pin plate, the ejector pin bottom plate, the driven ejector pin plate and the driven ejector pin bottom plate are sequentially stacked from top to bottom, and thermocouples for measuring the die temperature are arranged on the upper die plate and the lower die plate.
2. The mold with a three-shot ejection mechanism of claim 1, wherein: the locking elastic mechanism comprises a spring, and the spring is clamped between the sliding block and the driven thimble bottom plate.
3. The mold with a three-shot ejection mechanism according to claim 2, wherein: the inductor is arranged on the driven thimble bottom plate, and when the hook is locked into a lock hole of the sliding block, the sliding block triggers the inductor.
4. A mold with a three-shot ejection mechanism as in claim 3, wherein: the top of lockhole is equipped with the chamfer, the bottom of couple is equipped with the chamfer.
5. The mold with a three-shot ejection mechanism of claim 1, wherein: and a support column for preventing the large injection pressure template from deforming is arranged between the lower die fixing plate and the support plate.
6. The mold with a three-shot ejection mechanism of claim 1, wherein: an upper die heat insulation plate is arranged on the upper die fixing plate, and a lower die heat insulation plate is arranged on the lower die fixing plate.
7. The ejection method of the die with the three-time ejection mechanism is characterized by comprising the following steps of: the following steps are performed based on the mold with three ejection mechanisms according to any one of claims 1 to 6:
s1, ejecting for the first time, pushing an ejector rod of an injection molding machine to push an ejector plate and an ejector pin bottom plate, so that an ejector pin ejects ox horn rubber material at a ox horn rubber inlet, and a product is separated from the ox horn rubber material;
s2, ejection is carried out for the second time, an ejection bolt and a return pin push the upper template, and a driven ejector pin plate and a driven ejector pin bottom plate are driven by a driven mechanism to enable the circular insert to move synchronously;
s3, third ejection, wherein the driven mechanism is separated, and the ejector plate and the ejector pin bottom plate drive the ejector pins to eject the product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811173221.3A CN109093955B (en) | 2018-10-09 | 2018-10-09 | Mold with three-time ejection mechanism and ejection method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811173221.3A CN109093955B (en) | 2018-10-09 | 2018-10-09 | Mold with three-time ejection mechanism and ejection method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109093955A CN109093955A (en) | 2018-12-28 |
| CN109093955B true CN109093955B (en) | 2023-07-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811173221.3A Active CN109093955B (en) | 2018-10-09 | 2018-10-09 | Mold with three-time ejection mechanism and ejection method thereof |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109849279B (en) * | 2019-04-19 | 2023-08-08 | 重庆佳鑫精密模具有限公司 | Key cap mould of three ejecting drawing of patterns |
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| EP1287965A1 (en) * | 2001-08-24 | 2003-03-05 | Hans Müller | Arrangement for a two-stage ejector for an injection moulding tool |
| KR200280829Y1 (en) * | 2002-04-09 | 2002-07-06 | 덕성엠앤피 주식회사 | A metallic mold having removal inferiority preventive structure of molding goods |
| WO2010061026A2 (en) * | 2008-11-26 | 2010-06-03 | Comercial De Utiles Y Moldes, S.A. | Slide mechanism for the moulding and ejection of parts moulded with negatives for an injection mould |
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| CN109093955A (en) | 2018-12-28 |
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