CN114734587A - Injection mold with secondary ejection and adopting inclined ejection demolding structure and control method thereof - Google Patents

Injection mold with secondary ejection and adopting inclined ejection demolding structure and control method thereof Download PDF

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Publication number
CN114734587A
CN114734587A CN202210373981.9A CN202210373981A CN114734587A CN 114734587 A CN114734587 A CN 114734587A CN 202210373981 A CN202210373981 A CN 202210373981A CN 114734587 A CN114734587 A CN 114734587A
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Prior art keywords
mold
template
ejection
ejector
product
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CN202210373981.9A
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CN114734587B (en
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周期峰
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Hangzhou Youcheng Mechinery Industrial Co ltd
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Hangzhou Youcheng Mechinery Industrial Co ltd
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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
    • B29C45/33—Moulds having transversely, e.g. radially, movable mould parts
    • 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
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/30—Mounting, exchanging or centering
    • B29C33/305—Mounting of moulds or mould support plates
    • 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
    • B29C45/1742—Mounting of moulds; Mould supports
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/26—Moulds
    • B29C45/33—Moulds having transversely, e.g. radially, movable mould parts
    • B29C45/332—Mountings or guides therefor; Drives therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/40—Removing or ejecting moulded articles
    • B29C45/44—Removing or ejecting moulded articles for undercut articles
    • B29C45/4435—Removing or ejecting moulded articles for undercut articles using inclined, tiltable or flexible undercut forming elements driven by the ejector means
    • 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)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

The invention relates to an injection mold with secondary ejection and an inclined ejection demolding structure and a control method thereof, and belongs to the technical field of injection molds. Has the characteristics of simple structure, good forming effect and high quality stability. The problem of scrapping caused by incomplete demolding after injection molding is solved. The molding period is shortened, and the process requirement of using a mechanical arm to take a workpiece is met.

Description

Injection mold with secondary ejection and adopting inclined ejection demolding structure and control method thereof
Technical Field
The invention relates to the technical field of injection molds, in particular to an injection mold with secondary ejection and an inclined ejection demolding structure and a control method thereof.
Background
The mould for producing the car air bag, the car air bag locates at the centre of the steering wheel, the plastic material is TPO, its performance becomes rubber elasticity under the normal atmospheric temperature, have density little, crooked big, low temperature shock resistance high, characteristics such as easy processing, repeatedly usable, TPO material has synthesized EPDM and PVC's performance characteristic, have former weatherability, low temperature flexibility and the weldable performance of the latter. And (3) making inserts from the front mold core and the rear mold core of the product, wherein one mold is a needle valve hot runner system, and the injection molding machine adopts a JSW injection molding machine of 350 tons.
The traditional injection mold structure in the existing market is a common sliding block and inclined top structure, and the inner part is drawn out. If the product adopts a common mould structure, the product cannot be molded, or a product designer is required to change the structure, so that the development time is wasted, the cost is increased, and the reject ratio of an assembly part is increased.
Disclosure of Invention
The invention mainly solves the defects of complex structure, poor forming effect, long forming period and low quality stability in the prior art, provides the injection mold with secondary ejection and adopting the inclined ejection demolding structure and the control method thereof, and has the characteristics of simple structure, good forming effect and high quality stability. The problem of scrapping caused by incomplete demolding after injection molding is solved. The molding cycle is shortened, and the back-off of product moves up along the surface of mold insert and then leaves the mold insert simultaneously, satisfies the process demand that uses the manipulator to get the piece.
The technical problem of the invention is mainly solved by the following technical scheme:
an injection mold with secondary ejection and an inclined ejection demolding structure comprises a B template, wherein the upper end of the B template is provided with a rear mold core which is fixedly connected with the B template in an embedded manner, the upper end of the B template is provided with an A template which is movably pressed with the B template, the lower end of the A template is provided with a front mold core which is fixedly connected with the A template in an embedded manner, a forced-release product is arranged between the front mold core and the rear mold core, a product injection mold insert is arranged between the forced-release product and the rear mold core, a hot runner communicated with the product injection mold insert is arranged in the A template, the lower end of the B template is provided with an injection mold base, an ejection mold frame is arranged between the injection mold base and the B template, the lower part of the ejection mold frame is provided with a movable top plate, a thimble guide plate which is movably sleeved with the ejection mold frame is arranged between the movable top plate and the B template, and a main ejector rod is arranged between the thimble guide plate and the product injection mold insert, the main ejector rod is provided with an inclined ejection demoulding component I which is sleeved with the main ejector rod, and the rear end of the main ejector rod is provided with an inclined ejection demoulding component II which is inserted with the product injection moulding insert in a clamping and embedding manner.
Preferably, the lifter demoulding component I comprises a wear-resistant block which is in sleeve joint with the main ejector rod for limiting and is in sleeve joint with the ejector guide plate, wherein the wear-resistant block is fixed with the ejector guide plate through a screw, a main guide block is arranged between the wear-resistant block and the product injection moulding insert, and a plurality of lifter rods II which are in sleeve joint with the main guide block and are in sliding type clamping and embedding connection with the wear-resistant block are arranged between the wear-resistant block and the product injection moulding insert.
Preferably, the two sides of the rear end of the main guide block are respectively provided with an auxiliary guide block, the auxiliary guide blocks are respectively provided with an inclined ejector rod I which is connected with the wear-resistant block in a sliding type clamping and embedding manner, and an inclined ejector block I which is sleeved with the product injection molding insert in a clamping and embedding manner and is fixedly connected with the inclined ejector rod I in a bolt-and-bolt manner is arranged between the inclined ejector rod I and the product injection molding insert.
Preferably, an inclined ejector block II which is in clamping and embedded type sleeve joint with the product injection molding insert and is fixedly connected with the inclined ejector rod I through a bolt is arranged between the inclined ejector rod II and the product injection molding insert.
Preferably, the pitched roof demolding assembly II comprises a pitched roof column, a pitched roof plate integrated with the pitched roof column is arranged between the pitched roof column and the product injection molding insert, a pitched roof seat connected with the pitched roof column in a sliding limiting type inserting and embedding mode is arranged at the lower end of the pitched roof column, and pitched roof positioning inserts fixed with the pitched roof plate in an integrated welding mode are arranged at two ends of the upper portion of the pitched roof column.
Preferably, the lower part of the main ejector rod is provided with a main ejector rod connecting seat which is sleeved with the main ejector rod and is fixedly connected with the ejector pin guide plate through sleeved screws. The thimble baffle lower extreme be equipped with the stroke limiting plate, stroke limiting plate both ends and activity roof between be equipped with ejecting stopper, stroke limiting plate upper end and thimble baffle between be equipped with and contact the rubber retainer ring that connects and cup joint mutually with ejecting stopper spacing mutually, rubber retainer ring and stroke limiting plate between be equipped with a plurality of springs that are equidistant annular distribution.
Preferably, the injection mold base and the mold plate B are provided with guide rods penetrating through the movable top plate, the ejector pin guide plate and the stroke limiting plate, the left side and the right side of the main ejector rod are provided with a plurality of side ejector rods which are fixedly connected with the movable top plate through screws and extend to the lower end of the product to be forcibly taken off, and the front side and the rear side of the main ejector rod are provided with a plurality of ejector pins which are fixedly connected with the movable top plate through screws and extend to the lower end of the product to be forcibly taken off.
Preferably, oil cylinders connected and fixed with the movable top plate and the injection mold base are arranged on two sides of the ejection mold base, an oil collecting block communicated with the oil cylinders through pipelines is arranged at the front end of the ejection mold base, and a plurality of oil connectors are arranged on the oil collecting block. And the upper end of the template A is provided with a hoisting panel which is fixedly connected with the template A through bolts.
An injection mold with secondary ejection and an inclined ejection demolding structure and a control method thereof comprise the following operation steps:
the first step is as follows: assembling a front mold of the mold;
1) the template A is placed on the workbench, the frame opening faces upwards, the bottom of the template A is assembled with the sealing ring, then the front mold core is hoisted by the crane and placed in the template A frame and fixed by the screws, and then the oblique building block is assembled and installed on the template A and fixed by the screws.
2) Hoisting and turning over the template A and the parts fixed in the template A by using a travelling crane, then assembling a hot nozzle and a flow distribution plate of a hot runner, and fixing by using screws;
3) and hoisting the panel by using a crane, placing the panel on the template A, assembling the pin, and fixing by using a screw.
4) And finally, assembling the valve needle and the cylinder of the hot runner, and then fixing by using screws.
5) The water connectors on the template A are all installed, and the sockets of the hot runner are also fixed on the template A by screws.
The second step is that: a die rear die assembly process;
1) and placing the template B on a workbench, enabling the frame opening to be upward, assembling a sealing ring at the bottom, then hoisting the rear mold core by using a travelling crane, loading the mold core into the template B, assembling the inclined building block on the template B, and fixing the inclined building block by using screws.
2) The assembly runner insert is fixed in the rear mold core, and the B template is hoisted by a crane to be erected on the workbench; and (3) installing the pitched roof positioning insert into the rear mold core, fixing the pitched roof positioning insert by using screws, and then fixedly installing the product injection molding insert at the upper end of the rear mold core.
3) And (3) fixedly mounting a guide block at the bottom of the template B and the inclined ejection guide block, and assembling an inclined ejection demoulding component II consisting of an inclined ejection plate, an inclined ejection positioning insert, an inclined ejection column and an inclined ejection seat between the template B and the thimble guide plate.
4) And assembling the main ejector rod and the main ejector rod connecting seat between the template B and the ejector pin guide plate, then completing the assembling process of the inclined ejector demolding component I consisting of the inclined ejector block I, the inclined ejector block II, the inclined ejector rod II, the main guide block, the auxiliary guide block, the wear-resistant block and the inclined ejector rod I, and connecting and fixing the wear-resistant block and the rear mold core through screws.
5) Assembling the side ejector rod and the ejector pin, fixing the spring and the rubber check ring on the stroke limiting plate, fixing the stroke limiting plate at the lower end of the ejector pin guide plate by using screws, and fixing the inclined ejector seat and the stroke limiting plate by using sleeved screws so that the side ejector rod and the ejector pin penetrate through the ejector pin guide plate and the stroke limiting plate.
6) And then installing a movable top plate with an ejection limiting block and a guide rod, sleeving an ejection die set and an injection mold base, and fixedly connecting a long screw rod-to-long screw rod B template, the ejection die set and the injection mold base.
7) The rear mold core part is hoisted by a traveling crane to be placed on a workbench, the oil cylinder is integrally arranged on the movable top plate and the injection mold base and fixed on the movable top plate by screws, and the oil joint is fixed on an oil collecting block communicated with an oil cylinder phase pipeline.
The third step: and in the injection molding process of the mold, the front mold and the rear mold are closed, the mold is injected in the mold, the pressure of the mold is maintained, the mold is cooled, the front mold and the rear mold are opened after cooling, and the mold is ejected secondarily and the workpiece taking operation of forcibly taking off the product is completed through the inclined ejection demolding assembly I and the inclined ejection demolding assembly II after the mold is opened.
Preferably, the mold is closed, needle valve plastic is opened by a hot runner to enter a mold cavity closed area, the mold cavity closed area consists of a front mold core, a rear mold core, a product injection mold insert and an inclined ejection demolding assembly II, the mold is kept in pressure, the hot runner needle valve is closed, the product is cooled, then the mold is opened, a movable top plate is driven by an oil cylinder to drive a side ejector rod and an ejector pin to move for a distance H1 to a stroke limiting plate, and the forced-demoulding product is ejected for the first time; and then the movable top plate drives the thimble guide plate and the stroke limiting plate to move upwards by a distance H, so that the main ejector rod, the pitched roof demoulding component I and the pitched roof demoulding component II perform secondary ejection on the products with strong stripping.
The invention can achieve the following effects:
compared with the prior art, the injection mold with the secondary ejection and the inclined ejection demolding structure and the control method thereof have the characteristics of simple structure, good molding effect and high quality stability. The problem of scrapping caused by incomplete demolding after injection molding is solved. The molding cycle is shortened, and the back-off of the product moves upwards along the surface of the insert and then leaves the insert, so that the process requirement of using a mechanical arm to take a workpiece is met.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a front structural sectional view of the present invention.
Fig. 3 is a side view of the present invention.
Fig. 4 is a schematic view of the construction of the pitched roof stripper unit i of the present invention.
Fig. 5 is a schematic view of the connection structure of the lifter stripper assembly ii and the product injection mold insert of the present invention.
FIG. 6 is a schematic structural view of the pitched roof stripper assembly II of the present invention.
In the figure: the device comprises a hoisting panel 1, an A template 2, a B template 3, an oil cylinder 4, an ejection die carrier 5, a movable top plate 6, an injection die base 7, an oil collecting block 8, an oil joint 9, a strong demoulding product 10, a product injection moulding insert 11, a front die core 12, a rear die core 13, a main ejector rod 14, an ejector pin guide plate 15, a stroke limiting plate 16, an ejection limiting block 17, a guide rod 18, a side ejector rod 19, a hot runner 20, an inclined ejector demoulding component I21, an ejector pin 22, an inclined ejector demoulding component II 23, an inclined ejector block I24, an inclined ejector block II 25, an inclined ejector rod II 26, a main guide block 27, an auxiliary guide block 28, a wear-resisting block 29, an inclined ejector rod I30, a main ejector rod connecting seat 31, an inclined top plate 32, an inclined ejector positioning insert 33, an inclined ejector column 34, an inclined ejector seat 35, a spring 36 and a rubber retainer ring 37.
Detailed Description
The technical scheme of the invention is further specifically described by the following embodiments and the accompanying drawings.
Example (b): as shown in fig. 1-6, an injection mold with secondary ejection and adopting an inclined ejection demolding structure comprises a B mold plate 3, a rear mold core 13 which is fixedly connected with the B mold plate 3 in an embedded manner is arranged at the upper end of the B mold plate 3, an a mold plate 2 which is movably pressed with the B mold plate 3 is arranged at the upper end of the B mold plate 3, and a hoisting panel 1 which is fixedly connected with the a mold plate 2 through bolts is arranged at the upper end of the a mold plate 2. The lower end of the template A2 is provided with a front mold core 12 which is embedded and connected with the template A2 fixedly, a forced demoulding product 10 is arranged between the front mold core 12 and a rear mold core 13, a product injection mold insert 11 is arranged between the forced demoulding product 10 and the rear mold core 13, a hot runner 20 communicated with the product injection mold insert 11 is arranged in the template A2, the lower end of the template B3 is provided with an injection mold base 7, an ejection mold base 5 is arranged between the injection mold base 7 and the template B3, the lower part of the ejection mold base 5 is provided with a movable top plate 6, two sides of the ejection mold base 5 are respectively provided with an oil cylinder 4 which is connected and fixed with the movable top plate 6 and the injection mold base 7, the front end of the ejection mold base 5 is provided with an oil collecting block 8 communicated with a pipeline of the oil cylinder 4, and the oil collecting block 8 is provided with 2 oil connectors 9. An ejector pin guide plate 15 movably sleeved with the ejector die carrier 5 is arranged between the movable top plate 6 and the B die plate 3, a main ejector rod 14 is arranged between the ejector pin guide plate 15 and the product injection molding insert 11, and a main ejector rod connecting seat 31 which is sleeved with the main ejector rod 14 and fixedly connected with the ejector pin guide plate 15 through sleeved screws is arranged at the lower part of the main ejector rod 14. The lower end of the thimble guide plate 15 is provided with a stroke limiting plate 16, an ejection limiting block 17 is arranged between the two ends of the stroke limiting plate 16 and the movable top plate 6, a rubber check ring 37 which is in limited contact with the ejection limiting block 17 and is sleeved with the stroke limiting plate 16 is arranged between the upper end of the stroke limiting plate 16 and the thimble guide plate 15, and 12 springs 36 which are distributed in an equally-spaced annular shape are arranged between the rubber check ring 37 and the stroke limiting plate 16. A guide rod 18 penetrating through the movable top plate 6, the ejector pin guide plate 15 and the stroke limiting plate 16 is arranged between the injection mold base 7 and the B mold plate 3, the left side and the right side of the main ejector rod 14 are provided with 6 side ejector rods 19 which are fixedly connected with the movable top plate 6 through screws and extend to the lower end of the forced demoulding product 10, and the front side and the rear side of the main ejector rod 14 are provided with 4 ejector pins 22 which are fixedly connected with the movable top plate 6 through screws and extend to the lower end of the forced demoulding product 10.
The main ejector rod 14 is provided with an inclined ejection demoulding component I21 which is sleeved with the main ejector rod 14, the inclined ejection demoulding component I21 comprises a wear-resistant block 29 which is sleeved with the main ejector rod 14 for limiting and is fixed with a thimble guide plate 15 through a sleeved screw, a main guide block 27 is arranged between the wear-resistant block 29 and the product injection moulding insert 11, auxiliary guide blocks 28 are arranged on two sides of the rear end of the main guide block 27, inclined ejector rods I30 which are connected with the wear-resistant block 29 in a sliding embedded manner are arranged on the auxiliary guide blocks 28, and inclined ejector blocks I24 which are sleeved with the product injection moulding insert 11 in an embedded manner and are fixedly connected with the inclined ejector rods I30 in a bolt manner are arranged between the inclined ejector rods I30 and the product injection moulding insert 11. 3 oblique ejector rods II 26 which are sleeved with the main guide block 27 and connected with the wear-resistant block 29 in a sliding type clamping and embedding manner are arranged between the wear-resistant block 29 and the product injection mold insert 11. And an inclined ejector block II 25 which is in clamping and embedded type sleeve joint with the product injection molding insert 11 and is fixedly connected with the inclined ejector rod I30 in a bolt manner is arranged between the inclined ejector rod II 26 and the product injection molding insert 11. The rear end of the main ejector rod 14 is provided with an inclined ejector demoulding component II 23 which is inserted with the product injection moulding insert 11 in a clamping manner. The pitched roof demolding component II 23 comprises a pitched roof column 34, a pitched roof plate 32 integrated with the pitched roof column 34 is arranged between the pitched roof column 34 and the product injection molding insert 11, a pitched roof seat 35 connected with the pitched roof column 34 in a sliding limiting type inserting and embedding mode is arranged at the lower end of the pitched roof column 34, and pitched roof positioning inserts 33 integrated with the pitched roof plate 32 and fixed in a welding mode are arranged at two ends of the upper portion of the pitched roof column 34.
A control method of an injection mold with secondary ejection and an inclined ejection demolding structure comprises the following operation steps:
the first step is as follows: assembling a front mold of the mold;
1) the A template 2 is placed on a workbench, the frame opening faces upwards, a sealing ring is assembled at the bottom, then the front mold core 12 is hoisted by a crane and placed in the frame of the A template 2 and fixed by screws, and then the oblique building block is assembled and installed on the A template 2 and fixed by screws.
2) The template A2 and the parts fixed in the template A2 are hoisted and turned over by a crane, and then a hot nozzle and a flow distribution plate of a hot runner 20 are assembled and fixed by screws.
3) And hoisting the panel 1 by using a crane, placing the panel on the template A2, assembling the pin, and fixing by using a screw.
4) And finally, assembling the valve needle and the air cylinder of the hot runner 20, and then fixing by using screws.
5) The water connectors on the A template 2 are all arranged, and the sockets of the hot runner 20 are also fixed on the A template 2 by screws.
The second step is that: a mold rear mold assembling process;
1) placing a B template 3 on a workbench, wherein the frame opening is upward, assembling a sealing ring at the bottom, hoisting a rear die core 13 by a traveling crane, then loading the die core into the B template 3, assembling an inclined building block on the B template 3, and fixing the inclined building block by screws;
2) the assembly runner insert is fixed in the rear mold core 13, and the B template 3 is hoisted by a crane to be erected on the workbench; the pitched roof positioning insert 33 is arranged in the rear mold core 13 and fixed by screws, and then the product injection molding insert 11 is fixedly arranged at the upper end of the rear mold core 13.
3) And (3) fixedly mounting a guide block at the bottom of the B template 3 and the inclined top guide block, and assembling an inclined top demoulding component II 23 consisting of an inclined top plate 32, an inclined top positioning insert 33, an inclined top column 34 and an inclined top seat 35 between the B template 3 and the ejector pin guide plate 15.
4) And assembling the main ejector rod 14 and the main ejector rod connecting seat 31 between the B template 3 and the ejector pin guide plate 15, then completing the assembling process of an inclined ejector demolding assembly I21 consisting of an inclined ejector block I24, an inclined ejector block II 25, an inclined ejector rod II 26, a main guide block 27, an auxiliary guide block 28, a wear-resistant block 29 and an inclined ejector rod I30, and connecting and fixing the wear-resistant block 29 and the rear mold core 13 through screws.
5) Assembling the side ejector rod 19 and the ejector pin 22, fixing the spring 36 and the rubber retainer ring 37 on the stroke limiting plate 16, fixing the stroke limiting plate 16 at the lower end of the ejector pin guide plate 15 by using screws, and fixing the inclined ejector seat 35 and the stroke limiting plate 16 by sleeving screws, so that the side ejector rod 19 and the ejector pin 22 both penetrate through the ejector pin guide plate 15 and the stroke limiting plate 16.
6) And then installing a movable top plate 6 with an ejection limiting block 17 and a guide rod 18, sleeving an ejection die set 5 and an injection mold base 7, and fixedly connecting the long screw rod-to-long screw rod B template 3, the ejection die set 5 and the injection mold base 7.
7) Part 13 is hoisted by a traveling crane and the front side is placed on a workbench, the oil cylinder 4 is integrally arranged on the movable top plate 6 and the injection mould base 7 and fixed on the movable top plate 6 by screws, and the oil joint 9 is fixed on an oil collecting block 8 communicated with a pipeline of the oil cylinder 4.
The third step: and in the injection molding process of the mold, the front mold and the rear mold are closed, the mold is injected in the mold, the pressure of the mold is maintained, the mold is cooled, the front mold and the rear mold are opened after cooling, the mold is opened after opening, and the secondary ejection of the mold is carried out through the inclined ejection demolding component I21 and the inclined ejection demolding component II 23 after opening the mold, so that the workpiece taking operation of forcibly removing the product 10 is completed. Closing the mold, opening needle valve plastic by a hot runner 20, entering a mold cavity closed area, wherein the mold cavity closed area consists of a front mold core 12, a rear mold core 13, a product injection mold insert 11 and an inclined top demolding assembly II 23, maintaining the pressure of the mold, closing the hot runner needle valve, completing the cooling of the product, opening the mold, driving a movable top plate 6 by an oil cylinder 4 to drive a side ejector rod 19 and an ejector pin 22 to move for a distance H1 to a stroke limiting plate 16, and completing the first ejection of a forced demoulding product 10; and then the movable top plate 6 drives the thimble guide plate 15 and the stroke limit plate 16 to move upwards for a distance H, so that the main ejector rod 14, the inclined ejection demoulding component I21 and the inclined ejection demoulding component II 23 perform secondary ejection on the forced demoulding product 10.
In summary, the injection mold with the secondary ejection and the inclined ejection demolding structure and the control method thereof have the characteristics of simple structure, good molding effect and high quality stability. The problem of scrapping caused by incomplete demolding after injection molding is solved. The molding cycle is shortened, and the back-off of the product moves upwards along the surface of the insert and then leaves the insert, so that the process requirement of using a mechanical arm to take a workpiece is met.
The above description is only an embodiment of the present invention, but the structural features of the present invention are not limited thereto, and any changes or modifications within the scope of the present invention by those skilled in the art are covered by the present invention.

Claims (10)

1. The utility model provides a take two secondary ejecting and adopt oblique top demoulding structure's injection mold which characterized in that: the mold comprises a B template (3), a rear mold core (13) which is fixedly connected with the B template (3) in an embedded and sleeved mode is arranged at the upper end of the B template (3), an A template (2) which is movably pressed with the B template (3) is arranged at the upper end of the B template (3), a front mold core (12) which is fixedly connected with the A template (2) in an embedded and sleeved mode is arranged at the lower end of the A template (2), a forced demoulding product (10) is arranged between the front mold core (12) and the rear mold core (13), a product injection molding insert (11) is arranged between the forced demoulding product (10) and the rear mold core (13), a hot runner (20) which is communicated with the product injection molding insert (11) is arranged in the A template (2), an injection mold base (7) is arranged at the lower end of the B template (3), an ejection mold base (5) is arranged between the injection mold base (7) and the B template (3), and a movable top plate (6) is arranged at the lower part of the injection mold base (5), an ejector pin guide plate (15) movably sleeved with the ejector die set (5) is arranged between the movable top plate (6) and the B die plate (3), a main ejector rod (14) is arranged between the ejector pin guide plate (15) and the product injection molding insert (11), an inclined ejection demoulding component I (21) sleeved with the main ejector rod (14) is arranged on the main ejector rod (14), and an inclined ejection demoulding component II (23) inserted into the product injection molding insert (11) in a clamping and embedding manner is arranged at the rear end of the main ejector rod (14).
2. The injection mold with secondary ejection and adopting the pitched-roof demolding structure according to claim 1, wherein: the lifter demoulding component I (21) comprises a wear-resistant block (29) which is in sleeve joint with a main ejector rod (14) for limiting and is in sleeve joint with an ejector pin guide plate (15) for fixing a screw, a main guide block (27) is arranged between the wear-resistant block (29) and a product injection molding insert (11), and a plurality of lifter rods II (26) which are in sleeve joint with the main guide block (27) and are in sliding type clamping and embedding connection with the wear-resistant block (29) are arranged between the wear-resistant block (29) and the product injection molding insert (11).
3. The injection mold with secondary ejection and adopting the pitched-roof demolding structure according to claim 2, wherein: the rear end of the main guide block (27) is provided with auxiliary guide blocks (28) on both sides, the auxiliary guide blocks (28) are provided with oblique ejector rods I (30) connected with the wear-resistant blocks (29) in a sliding and clamping manner, and oblique ejector blocks I (24) which are sleeved with the product injection inserts (11) in a clamping and embedding manner and fixedly connected with the oblique ejector rods I (30) in a bolt manner are arranged between the oblique ejector rods I (30) and the product injection inserts (11).
4. The injection mold with secondary ejection and adopting the pitched-roof demolding structure according to claim 3, wherein: and an oblique ejector block II (25) which is in clamping embedded sleeve connection with the product injection molding insert (11) and is fixedly connected with the oblique ejector rod I (30) in a stud manner is arranged between the oblique ejector rod II (26) and the product injection molding insert (11).
5. The injection mold with secondary ejection and adopting the pitched-roof demolding structure according to claim 1, wherein: pentroof drawing of patterns subassembly II (23) including pentroof post (34), pentroof post (34) and product mould plastics mold insert (11) between be equipped with pentroof post (34) be the oblique roof board (32) of integration, pentroof post (34) lower extreme be equipped with pentroof post (34) slide spacing formula mutually and insert sloping footstock (35) of inlaying the connection, pentroof post (34) upper portion both ends be equipped with and be integration welded fastening's pentroof positioning insert (33) with pentroof board (32).
6. The injection mold with secondary ejection and adopting the pitched-roof demolding structure according to claim 1, wherein: the lower part of the main ejector rod (14) is provided with a main ejector rod connecting seat (31) which is sleeved with the main ejector rod (14) and is fixedly connected with the thimble guide plate (15) through sleeved screws; thimble baffle (15) lower extreme be equipped with stroke limiting plate (16), stroke limiting plate (16) both ends and activity roof (6) between be equipped with ejecting stopper (17), stroke limiting plate (16) upper end and thimble baffle (15) between be equipped with ejecting stopper (17) limit mutually the position touch and with stroke limiting plate (16) muff-coupling rubber retainer ring (37), rubber retainer ring (37) and stroke limiting plate (16) between be equipped with a plurality of spring (36) that are equidistant annular and distribute.
7. The injection mold with secondary ejection and adopting the pitched-roof demolding structure according to claim 6, wherein: injection mould base (7) and B template (3) between be equipped with guide bar (18) that run through activity roof (6), thimble guide plate (15), stroke limiting plate (16), main ejector pin (14) left and right sides be equipped with a plurality ofly with activity roof (6) looks screwed connection fixed and extend to and take off side ejector pin (19) of product (10) lower extreme by force, main ejector pin (14) around both sides be equipped with a plurality ofly with activity roof (6) looks screwed connection fixed and extend to and take off thimble (22) of product (10) lower extreme by force.
8. The injection mold with secondary ejection and adopting the pitched-roof demolding structure according to claim 1, wherein: the two sides of the ejection die carrier (5) are respectively provided with an oil cylinder (4) which is fixedly connected with the movable top plate (6) and the injection die base (7), the front end of the ejection die carrier (5) is provided with an oil collection block (8) communicated with a pipeline of the oil cylinder (4), and the oil collection block (8) is provided with a plurality of oil connectors (9); the upper end of the template A (2) is provided with a hoisting panel (1) which is fixedly connected with the template A (2) through bolts.
9. The control method of the injection mold with the secondary ejection and the inclined ejection demolding structure is characterized by comprising the following operation steps of:
the first step is as follows: assembling a front mold of the mold;
1) placing the template A (2) on a workbench, enabling the opening of the frame to be upward, assembling a sealing ring at the bottom, then hoisting a front mold core (12) by a traveling crane, placing the front mold core in the frame of the template A (2), fixing the front mold core by screws, and then assembling inclined building blocks, installing the inclined building blocks on the template A (2), and fixing the inclined building blocks by screws;
2) hoisting and turning over the template A (2) and the parts fixed in the template A (2) by using a travelling crane, then assembling a hot nozzle and a flow distribution plate of a hot runner (20), and fixing by using screws;
3) hoisting the panel (1) by using a crane, placing the panel on the template A (2), assembling pins, and fixing by using screws;
4) finally, assembling a valve needle and an air cylinder of the hot runner (20), and then fixing by using screws;
5) the water connectors on the template A (2) are all arranged, and the sockets of the hot runner (20) are also fixed on the template A (2) by screws;
the second step is that: a die rear die assembly process;
1) placing the B template (3) on a workbench, enabling a frame opening to face upwards, assembling a sealing ring at the bottom, hoisting by using a travelling crane, then loading a die core (13) into the B template (3), assembling a rear assembly inclined building block on the B template (3) and fixing by using screws;
2) the assembly runner insert is fixed in the rear mold core (13), and the B template (3) is hoisted to be erected on the workbench by a crane; the pitched roof positioning insert (33) is arranged in the rear mold core (13) and fixed by screws, and then the product injection molding insert (11) is fixedly arranged at the upper end of the rear mold core (13);
3) fixedly mounting a guide block at the bottom of the template B (3) and an inclined top guide block, and then assembling an inclined top demoulding component II (23) consisting of an inclined top plate (32), an inclined top positioning insert (33), an inclined top column (34) and an inclined top seat (35) between the template B (3) and the thimble guide plate (15);
4) assembling a main ejector rod (14) and a main ejector rod connecting seat (31) between a B template (3) and an ejector pin guide plate (15), then completing the assembling process of an inclined ejector assembly I (21) consisting of an inclined ejector block I (24), an inclined ejector block II (25), an inclined ejector rod II (26), a main guide block (27), an auxiliary guide block (28), a wear-resistant block (29) and an inclined ejector rod I (30), and connecting and fixing the wear-resistant block (29) and a rear mold core (13) through screws;
5) assembling a side ejector rod (19) and an ejector pin (22), fixing a spring (36) and a rubber check ring (37) on a stroke limiting plate (16), fixing the stroke limiting plate (16) at the lower end of an ejector pin guide plate (15) by using screws, and fixing an inclined ejector seat (35) and the stroke limiting plate (16) by using sleeved screws so that the side ejector rod (19) and the ejector pin (22) penetrate through the ejector pin guide plate (15) and the stroke limiting plate (16);
6) then a movable top plate (6) with an ejection limiting block (17) and a guide rod (18) are installed, then an ejection die set (5) and an injection mold base (7) are sleeved, and a long screw rod template B (3), the ejection die set (5) and the injection mold base (7) are fixedly connected;
7) hoisting the rear mold core (13) part by a traveling crane to the front side and placing the rear mold core on a workbench, integrally installing the oil cylinder (4) on the movable top plate (6) and the injection mold base (7), fixing the oil cylinder on the movable top plate (6) by screws, and fixing the oil joint (9) on an oil collecting block (8) communicated with a pipeline of the oil cylinder (4);
the third step: and in the injection molding process of the mold, the front mold and the rear mold are closed, the mold is injected in the mold, the pressure of the mold is maintained, the mold is cooled, the front mold and the rear mold are opened after cooling, and the mold is secondarily ejected through the inclined ejection demolding component I (21) and the inclined ejection demolding component II (23) after opening the mold and the workpiece taking operation of forcibly stripping the product (10) is completed.
10. The control method of the injection mold with secondary ejection and adopting the pitched-roof demolding structure according to claim 9, characterized in that: the mold is closed, needle valve plastic is opened by a hot runner (20) and enters a mold cavity closed area, the mold cavity closed area consists of a front mold core (12), a rear mold core (13), a product injection mold insert (11) and an inclined ejection mold component II (23), the mold is kept in pressure, the hot runner needle valve is closed, the product is cooled, then the mold is opened, a movable top plate (6) is driven by an oil cylinder (4) to drive a side ejector rod (19) and an ejector pin (22) to move for a distance H1 to a stroke limiting plate (16), and the forced demoulding product (10) is ejected for the first time; and then the movable top plate (6) drives the thimble guide plate (15) and the stroke limiting plate (16) to move upwards for a distance H, so that the main ejector rod (14), the inclined ejection demoulding component I (21) and the inclined ejection demoulding component II (23) perform secondary ejection on the forcibly stripped product (10).
CN202210373981.9A 2022-04-11 2022-04-11 Injection mold with secondary ejection and inclined ejection demoulding structure and control method thereof Active CN114734587B (en)

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Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06226796A (en) * 1993-02-01 1994-08-16 Mitsubishi Materials Corp Mold with knock-out mechanism
JPH09131733A (en) * 1995-11-09 1997-05-20 Olympus Optical Co Ltd Mold for molding prism
CN204196171U (en) * 2014-11-10 2015-03-11 厦门唯科健康科技有限公司 The strong release mechanism of a kind of back-off
KR20150143126A (en) * 2014-06-13 2015-12-23 주식회사 씨지엠 Injection moding apparatus for cutting side gate automaticaaly and ejecting molding goods
CN204955323U (en) * 2015-09-16 2016-01-13 浙江中财管道科技股份有限公司 It goes out mould to glue camera bellows product quadratic term
CN105415597A (en) * 2015-08-24 2016-03-23 思柏精密模具注塑（无锡）有限公司 Precise mold for battery shell of camera
CN206855937U (en) * 2017-05-27 2018-01-09 东莞市快科精密模具有限公司 A kind of injection mold and its mould emptier
CN109397637A (en) * 2018-09-30 2019-03-01 寇长花 A kind of automobile armrest lid injection mold
CN109648793A (en) * 2018-09-29 2019-04-19 高建鑫 A kind of manufacturing method of automobile interior decoration back shroud
CN213972306U (en) * 2020-11-16 2021-08-17 广东精时精模科技股份有限公司 Injection mold with double ejection of back-off
CN214820453U (en) * 2021-05-25 2021-11-23 浙江万超电器有限公司 Button injection mold
CN215283109U (en) * 2021-04-27 2021-12-24 新立科技股份有限公司 Injection mold for new energy automobile

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06226796A (en) * 1993-02-01 1994-08-16 Mitsubishi Materials Corp Mold with knock-out mechanism
JPH09131733A (en) * 1995-11-09 1997-05-20 Olympus Optical Co Ltd Mold for molding prism
KR20150143126A (en) * 2014-06-13 2015-12-23 주식회사 씨지엠 Injection moding apparatus for cutting side gate automaticaaly and ejecting molding goods
CN204196171U (en) * 2014-11-10 2015-03-11 厦门唯科健康科技有限公司 The strong release mechanism of a kind of back-off
CN105415597A (en) * 2015-08-24 2016-03-23 思柏精密模具注塑（无锡）有限公司 Precise mold for battery shell of camera
CN204955323U (en) * 2015-09-16 2016-01-13 浙江中财管道科技股份有限公司 It goes out mould to glue camera bellows product quadratic term
CN206855937U (en) * 2017-05-27 2018-01-09 东莞市快科精密模具有限公司 A kind of injection mold and its mould emptier
CN109648793A (en) * 2018-09-29 2019-04-19 高建鑫 A kind of manufacturing method of automobile interior decoration back shroud
CN109397637A (en) * 2018-09-30 2019-03-01 寇长花 A kind of automobile armrest lid injection mold
CN213972306U (en) * 2020-11-16 2021-08-17 广东精时精模科技股份有限公司 Injection mold with double ejection of back-off
CN215283109U (en) * 2021-04-27 2021-12-24 新立科技股份有限公司 Injection mold for new energy automobile
CN214820453U (en) * 2021-05-25 2021-11-23 浙江万超电器有限公司 Button injection mold

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