CN114801075A - Micro-supercharged turbine injection mold - Google Patents
Micro-supercharged turbine injection mold Download PDFInfo
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- CN114801075A CN114801075A CN202210500810.8A CN202210500810A CN114801075A CN 114801075 A CN114801075 A CN 114801075A CN 202210500810 A CN202210500810 A CN 202210500810A CN 114801075 A CN114801075 A CN 114801075A
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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
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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
- B29C45/401—Ejector pin constructions or mountings
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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
- B29C2045/338—Mould parts with combined axial and transversal movements
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- Manufacturing & Machinery (AREA)
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- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention discloses a micro-supercharged turbine injection mold which comprises a fixed mold base plate, a top plate, a movable mold plate, a fixed mold plate, a movable mold base plate and a bottom plate which are sequentially arranged from top to bottom, wherein an injection port is formed in the fixed mold base plate, and a composite insert for turbine molding is arranged between the fixed mold plate and the movable mold plate; the core pulling mechanism is provided with a fixed die base plate and a movable die plate; the ejection mechanism is arranged below the movable mould base plate, the core-pulling slide block mechanism and the fixed assembly are arranged in the circumferential direction of the composite insert, and the locking mechanism is abutted against the inner walls of the fixed mould base plate and the movable mould plate and used for locking the core-pulling slide block mechanism. The invention reduces the difficulty of demoulding and can smoothly demould the large-curvature twisted blade turbine injection molding piece.
Description
Technical Field
The invention belongs to the technical field of three-plate molds, and particularly relates to a micro supercharged turbine injection mold.
Background
The three-plate mould is mainly formed by injection in a small water gap mode, and has wide industrial application. The overall structure of the three-plate mold has large free space, and can realize multiple parting. However, when the traditional mould structure is applied to a miniature large-curvature twisted blade turbine injection molding part, the problems of difficult molding and demolding can occur. The curved surface portion has a maximum curvature (relative to a given normal curvature) of 94.6E-3(0.0946), a minimum of-0.5E-3 (-0.0005), an outer airfoil surface comprising a continuous convex shape, an inner airfoil surface comprising a continuous concave shape, and a more complex spatial shape. The traditional mould often focuses on the times of mould splitting, and is difficult to form twisted blade grooves among blades and to loose core and demould.
Disclosure of Invention
In view of the above, the main objective of the present invention is to provide a micro turbo injection mold.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
the embodiment of the invention provides a micro supercharged turbine injection mold, which is used for a micro large-curvature turbine blade injection molding part and comprises a fixed mold base plate, a top plate, a movable mold plate, a fixed mold plate, a movable mold base plate and a bottom plate which are sequentially arranged from top to bottom, wherein an injection molding opening is formed in the fixed mold base plate, and a composite insert for turbine molding is arranged between the fixed mold plate and the movable mold plate;
the core pulling mechanism is provided with a fixed die base plate and a movable die plate; the ejection mechanism is arranged below the movable mould base plate, the core-pulling slide block mechanism and the fixed assembly are arranged in the circumferential direction of the composite insert, and the locking mechanism is abutted against the inner walls of the fixed mould base plate and the movable mould plate and used for locking the core-pulling slide block mechanism.
In the scheme, the fixed die base plate is provided with a plurality of shutter pull rods, and the shutter pull rods penetrate through the top plate and the movable die plate to reach the fixed die plate; the fixed die base plate, the top plate, the movable die plate, the fixed die plate and the movable die base plate are connected through a plurality of penetrating first guide pillars, and the fixed die plate and the movable die base plate are connected through a plurality of penetrating second guide pillars.
In the above scheme, the composite insert comprises an upper mold core, a lower mold core and a fixed molding insert, wherein the fixed molding insert is arranged at the center and used for molding the pressurizing turbine blade, the upper mold core is fixed on the movable mold plate through a hexagon screw, and the lower mold core is fixed on the fixed mold plate through a hexagon screw.
In the above scheme, the slider mechanism of loosing core includes upper slider, lower floor's slider, oblique slider pedestal, the upper and lower sides of fixed shaping mold insert sets up upper slider, lower floor's slider respectively, the upper slider is used for turning round the upper portion shaping of blade, the lower floor's slider is used for turning round the lower part shaping of blade, oblique slider pedestal is fixed on the movable mould backing plate, there is inclined plane T type groove at the top of oblique slider pedestal, the bottom surface in T type groove is provided with the slip ball and is used for leading the cunning, the oblique slider cooperation of lower floor sets up in T type inslot for reciprocating motion.
In the scheme, the lower-layer sliding block and the upper-layer sliding block form 10-degree dislocation and form a complex space structure together with the fixed molding insert.
In the scheme, the fixing mechanism comprises a shovel machine, upper press plates and lower press plates, the shovel machine is provided with nine groups, the shovel machine is circumferentially surrounded on the outer portion of the upper-layer sliding block at intervals of 40 degrees and is connected with the upper-layer sliding block, the upper press plates are provided with nine groups and circumferentially arranged at intervals of 40 degrees, a sliding groove is formed between any two upper press plates and is used for being matched with the upper-layer sliding block, the fixed molding insert is fixed on the lower press plates and is connected through a mortise-tenon structure, and a sliding groove is formed between any two lower press plates and is used for being matched with the lower-layer sliding block.
In the scheme, the lower-layer sliding block and the upper-layer sliding block are staggered by 10 degrees.
In the scheme, the locking mechanism comprises an inclined guide post and a limiting screw, the end face of the upper sliding block is provided with two limiting screws parallel to the T-shaped groove, the upper sliding block is provided with the inclined guide post and is connected with the shovel machine through the inclined guide post, and the end face of the upper sliding block, close to the shovel machine, is provided with a first wear-resistant block.
In the scheme, the ejection mechanism comprises an ejector pin push plate, a pressing push plate, an ejector pin plate, a coiling Cumsa acceleration ejector, a first reset spring group and a second reset spring group, an ejection ejector pin of the injection molding machine is abutted against the ejector pin push plate through a ko hole, the fixed mold plate and the ejector pin push plate are ejected out in a relatively static mode, the coiling Cumsa acceleration ejector is arranged on one side of the ejector pin push plate, when a roller of the coiling Cumsa acceleration ejector contacts a second wear-resistant block in the square iron, the roller on the other side of the coiling Cumsa acceleration ejector tilts to push the ejector pin plate to eject, the pressing push plate is arranged on the other side of the ejector pin push plate, the first reset spring group is arranged between the pressing push plate and the movable mold base plate, and the second reset spring group is arranged between the ejector pin plate and the movable mold base plate.
Compared with the prior art, the invention divides the insert of the turbine forming part into three layers, two moving layers and one fixed layer in the mould cavity. The moving layers are arranged in a staggered mode according to a certain angle, the moving direction of the sliding block assembly is controlled through the inclined guide pillar sliding blocks and the guide pillar inclined planes respectively, the demolding difficulty is reduced, and the large-curvature twisted blade turbine injection molding piece can be smoothly released.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:
FIG. 1 is a schematic view of a main structure of a micro turbo injection mold according to the present invention;
FIG. 2 is a schematic view of the insert-removing structure of the core back slide assembly of the present invention;
FIG. 3 is a schematic structural view of the main body of the upper core-pulling slider assembly according to the present invention;
FIG. 4 is a cross-sectional view of the upper core back slide assembly of the present invention;
FIG. 5 is a schematic view of the whole structure of the core-pulling slider in the present invention;
FIG. 6 is a top view A of the micro-turbo injection mold of the present invention;
fig. 7 is a schematic cross-sectional view of a-a in fig. 3.
FIG. 8 is a top view B of the micro-booster turbine injection mold of the present invention;
FIG. 9 is a schematic cross-sectional view taken along line B-B in FIG. 5;
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The same or similar reference numerals in the drawings of the present embodiment correspond to the same or similar components; in the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, the terms describing the positional relationships in the drawings are only for illustrative purposes and are not to be construed as limitations of the present patent, and specific meanings of the terms may be understood by those skilled in the art according to specific situations.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, article, or apparatus that comprises the element.
The embodiment of the invention provides a micro-supercharged turbine injection mold, which is used for a micro-turbine blade injection molding piece with large curvature, and comprises a fixed mold base plate 3, a top plate 4, a movable mold plate 5, a fixed mold plate 6, a movable mold base plate 7, a movable mold base plate 8 and a bottom plate 9 which are sequentially arranged from top to bottom, wherein an injection molding opening 1 is formed in the fixed mold base plate 3, and a composite insert for turbine molding is arranged between the fixed mold plate 6 and the movable mold plate 5;
the casting mechanism is provided with a fixed die base plate 3 and a movable die plate 5; the ejection mechanism is arranged below the movable mold base plate 7, the core-pulling slide block mechanism and the fixed assembly are arranged in the circumferential direction of the composite mold insert, and the locking mechanism is abutted against the inner walls of the fixed mold base plate 3 and the movable mold plate 5 and used for locking the core-pulling slide block mechanism.
When loosing core, upper and lower floor's slider is taken out respectively, and upper slide pulls out with oblique guide pillar 21, and lower floor's slider is by oblique slider pedestal roll-off, and the big curvature of having moulded plastics the completion is turned round blade turbine injection molding and is ejecting by ejection mechanism, and the mould structure is more reasonable, and reliable operation is stable, can make the turbine injection molding take out fast, avoids the complex structure of loosing core many times, and shaping efficiency is higher, and can not produce the problem of drawing of patterns difficulties such as sheltering from the interference.
The fixed die base plate 3 is provided with a plurality of shutter pull rods 17, and the shutter pull rods 17 penetrate through the top plate 4, the movable die plate 5 and the fixed die plate 6; the fixed die base plate 3, the top plate 4, the movable die plate 5, the fixed die plate 6 and the movable die base plate 7 are connected through a plurality of penetrating first guide pillars 2, and the fixed die plate 6 and the movable die base plate 7 are connected through a plurality of penetrating second guide pillars 25.
Specifically, when the mold is opened, in order to ensure the parting sequence, the movable mold plate 5 is provided with an opening and closing through hole, the fixed mold base plate 3 is fixedly provided with a shutter pull rod 17, and the other end of the shutter pull rod 17 is connected with a resin shutter which extends into the opening and closing through hole to be attached to the hole wall. When the fixed die plate 6 and the movable die plate 5 are opened by the shutter, the first stage is in a closed state, the waste material 35 is firstly pulled out by the pulling pin, and after the waste material is removed, the second stage is in a state that the fixed die plate 6 and the movable die plate 5 are opened to expose the product.
The composite insert comprises an upper mold core 27, a lower mold core 28 and a fixed forming insert 20, wherein the fixed forming insert 20 is arranged at the center and used for forming the booster turbine, the upper mold core 27 is fixed on the movable mold plate 5 through a hexagon screw, and the lower mold core 28 is fixed on the fixed mold plate 6 through a hexagon screw.
The core-pulling slide block mechanism comprises an upper slide block 19, a lower slide block 29 and an inclined slide block seat body 30. The upper and lower sides of the fixed forming insert 20 are respectively provided with an upper layer slide block 19 and a lower layer slide block 29, the upper layer slide block 19 is used for upper forming of twisted blades, the lower layer slide block 29 is used for lower forming of twisted blades, the inclined slide block base body 30 is fixed on the movable die base plate 7, an inclined plane T-shaped groove is formed in the top of the inclined slide block base body 30, sliding balls are arranged on the bottom surface of the T-shaped groove and used for guiding sliding, and the lower layer inclined slide block 29 is arranged in the T-shaped groove in a matched mode and used for reciprocating motion.
The lower layer slide block 29 and the upper layer slide block 19 form a 10-degree dislocation, and form a complex space structure together with the fixed molding insert 20.
The fixing mechanism comprises shovel machines 34, upper pressing plates 18 and lower pressing plates 23, the shovel machines 34 are arranged in nine groups, the shovel machines are circumferentially surrounded outside the upper-layer sliding blocks 19 at intervals of 40 degrees and are connected with the upper-layer sliding blocks 19, the upper pressing plates 18 are arranged in nine groups and circumferentially arranged at intervals of 40 degrees, sliding grooves are formed between any two upper pressing plates 18 and used for being matched with the upper-layer sliding blocks 19, the fixed molding inserts 20 are fixed on the lower pressing plates 23 and connected through tenon-and-mortise structures, and sliding grooves are formed between any two lower pressing plates 23 and used for being matched with the lower-layer sliding blocks 29.
And sliding grooves are respectively formed on the upper pressing plate 18 and the lower pressing plate 23, a back shovel formed by the shovel machine 34 is inserted into the inclined surface of the fixed die plate 6 during injection molding to form locking, and the upper sliding block 19 is locked and cannot slide.
The upper pressing plate 18 is pressed against the side surface of the upper layer slide block 19, and the lower pressing plate 23 is pressed against the side surface of the lower layer slide block 29, so that the two layers of slide blocks cannot fall off or tilt.
The lower slide 29 and the upper slide 19 are offset by 10 °.
The locking mechanism comprises an inclined guide post 21 and a limiting screw, the end face of the upper-layer sliding block 19 is provided with two limiting screws parallel to the T-shaped groove, the upper-layer sliding block 19 is provided with the inclined guide post 21, the upper-layer sliding block 19 is connected with the shovel machine 34 through the inclined guide post 21, and the end face, close to the shovel machine 34, of the upper-layer sliding block 19 is provided with a first wear-resistant block 22.
Specifically, two limit screws parallel to the T-shaped groove are arranged on the end face of the upper-layer sliding block 19, the limit distance is 13mm, the upper-layer sliding block 19 is locked by an inclined guide pillar 21 and a shovel machine 34 during die assembly, the lower-layer sliding block 29 is locked by an inclined sliding block base body 30, and the upper-layer sliding block 19 is separated from the position limited by the limit screws and is positioned by glass bead screws during die opening, so that the upper-layer sliding block 19 cannot slip; the lower layer slide block 29 is abutted against the front surface of the inner groove for limiting; the relative position of the fixed insert is fixed in the processes of die opening and die closing.
The ejection mechanism comprises an ejector pin push plate 11, a pressing push plate 12, an ejector pin plate 15, a coiling Cumsa acceleration ejector 31, a first return spring group a10 and a second return spring group b33, an ejection ejector rod of the injection molding machine abuts against the ejector pin push plate 11 through a ko hole, the fixed mold plate 6 and the ejector pin push plate 11 are ejected in a relatively static mode, the coiling Cumsa acceleration ejector 31 is arranged on one side of the ejector pin push plate 11, when a roller of the coiling Cumsa acceleration ejector 31 touches a second wear-resistant block 24, a roller on the other side of the coiling Cumsa acceleration ejector 31 tilts to push the ejector pin plate 15 to eject, the pressing push plate 12 is arranged on the upper side of the ejector pin push plate 11, the first return spring group a10 is arranged between the pressing push plate 12 and the movable die base plate 7, and the second return spring group b33 is arranged between the ejector pin push plate 15 and the movable die base plate 7.
Specifically, the ejection process is divided into two parts by the movement of an ejector rod of the injection molding machine, the first part ejects the B plate, and in the process, the lower layer slide block 29 opens the mold under the action of a T-shaped groove of the inclined slide block seat body 30.
And in the second part, after the lower-layer slide block 29 is opened, the ejector rod continues to eject out the drive disc to play the action of the Cumsa accelerated ejector 31 to eject out the ejector plate 15, and the ejector plate 15 is clamped with a central ejector rod extending into the core insert and used for ejecting out the turbine injection molding piece, so that the complete demolding of the injection molding turbine is realized.
An ejection ejector rod of the injection molding machine is abutted against an ejector pin push plate 11 through a ko hole, in the pushing-out process, a first part of a fixed mold plate 6 and the ejector pin push plate 11 are ejected in a relatively static mode, a lower layer of a slide block 29 is pulled out under the action of a base body of an inclined slide block, when a roller of a disk-lifting Cumsa acceleration ejector 31 contacts a wear-resistant block 22 in square iron, the roller on the other side of the disk-lifting Cumsa acceleration ejector 31 tilts to push an ejector pin plate 15 to eject, during resetting, the ejector rod of the injection molding machine is pulled out, a first reset spring group a10 and a second reset spring group b33 work simultaneously to respectively reset the ejector pin plate 15, the ejector pin push plate 11 and the disk-lifting Cumsa acceleration ejector 31, after the ejector pin plate 15 and an accelerator are reset, a first reset spring group a10 work is finished, a second reset spring group b33 continues to work until the ejector pin 11 is reset, the work is finished and the bottom surface of the ejector pin push plate 11 is provided with 8 garbage push plates 32, and is used for preventing impact deformation, wherein the action of the second wear-resistant block 24 prevents the ejection mechanism from being broken down and damaged due to the abrasion of the ejector plate 15 and the roller pair irons at two sides of the disk-type Cumsa accelerated ejector 31.
When the die works, the motion guide is carried out through a first guide post 2 mechanism arranged in a three-plate die, wherein the first guide post 2 mechanism comprises a first guide post 2 of which one end is clamped in a movable die base plate 7, and the other end extends into a fixed die base plate 3 and is used for the motion guide of a movable die plate 5 and a fixed die plate 6; the first guide pillar 2 mechanism is provided with three plate mold corners.
When the core is pulled, the P3 surface is opened, the movable mould plate 5 and the fixed mould plate 6 are separated, the inclined guide post 21 fixed on the movable mould plate 5 does not move, the fixed mould plate 6 drives the upper layer slide block 19 to move downwards, at the moment, the upper layer slide block 19 is pulled open by the inclined guide post 21 due to relative movement, is limited by the limiting screw and is positioned by the glass bead screw, and the first core pulling is completed.
The ejector rod of the injection molding machine starts to work, the ejector pin push plate 11 is pushed out, meanwhile, the ejector pin push plate 11 is fixed with the fixed die plate 6, so that the fixed die plate 6 is pushed out by the ejector pin plate 15, the lower-layer slide block 29 is pulled open by the inclined slide block seat body 30 under the action of the inclined slide block seat body 30, and secondary core pulling is completed. The turbine product has enough ejection space, and when the two layers of sliding blocks are pulled out, the two layers of sliding blocks still stay in respective sliding ways, so that the die assembly is convenient to reset.
The working principle of the three-plate die is as follows:
1. during injection molding, the fixed mold base plate 3 is injected with the plastic, the mold needs to be opened after the injection molding is finished, and the injection molding machine drives the fixed mold plate 6 to move towards the fixed mold plate 6. The mold is first opened at P2, and when opened, the mold gate and the plastic part are broken at the gate, and the pulling pin pulls the scrap 35 out.
2. The fixed die plate 6 continuously retreats, the die is opened on the surface P1, the pulling pin is pulled out, the waste material 35 falls out of the die, the fixed die plate 6 continuously retreats, the die is opened on the surface P3, and in the opening process, the upper sliding block 19 firstly completes core pulling under the action of the inclined guide post 21;
3. after the P3 surface is opened, the ejector pin push plate 11 is pushed by the ejector rod of the injection molding machine to open the P4 surface, so that the lower-layer slide block 29 is pulled out under the action of the inclined slide block seat body 30, and the lower-layer slide block 29 is pulled open by the inclined slide block seat body 30 to finish core pulling;
4. the ejector rod of the injection molding machine continuously pushes a roller at one side of the coiled Cumsa accelerated ejector 31 to contact the wear-resistant block 22 in the square iron, so that the other side of the coiled Cumsa accelerated ejector 31 is lifted to push out the ejector pin plate 15, and an ejector pin on the ejector pin plate 15 ejects a turbine product from the mold core insert, thereby achieving the complete demolding of the injection molding machine;
5. when the injection mold is reset, two groups of reset springs, namely a first reset spring group a10 and a second reset spring group b33 work simultaneously to reset the ejector plate 15 and the push plate 11 downwards, after the reset of the coiling Cumsa acceleration ejector 31 is completed, the first group of springs are reset, the second group of springs continue to work, after the reset of the ejector plate 15 and the push plate 11, the reset of the second reset spring group b33 is completed, the mold is reset according to the sequence of P4 → P3 → P1 → P2, and after the mold is completely closed, the injection mold waits for the next injection molding cycle.
The casting mechanism is improved, the injection molding port 1 is eccentric by 30mm so as to achieve the purpose of inserting the pulling pin, and in order to insert the pulling pin, the pulling pin cannot be arranged at two ends of the injection molding port 1 due to the fact that the turbine product is too small in size, so that the injection molding port 1 is eccentric, the pulling pin is arranged at one end of the injection molding port 1, and the purpose of inserting the pulling pin is achieved.
The cooling system comprises a water channel and an upper mold core insert, the water channel is used for cooling, and the lower mold core 28 is naturally cooled due to the fact that the size of the turbine product is too small.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention.
Claims (9)
1. A micro-supercharged turbine injection mold is used for a micro-large-curvature turbine blade injection molding piece and is characterized by comprising a fixed mold base plate, a top plate, a movable mold plate, a fixed mold plate, a movable mold base plate and a bottom plate which are sequentially arranged from top to bottom, wherein an injection opening is formed in the fixed mold base plate, and a composite insert for turbine molding is arranged between the fixed mold plate and the movable mold plate;
the core pulling mechanism is provided with a fixed die base plate and a movable die plate; the ejection mechanism is arranged below the movable mould base plate, the core-pulling slide block mechanism and the fixed assembly are arranged in the circumferential direction of the composite insert, and the locking mechanism is abutted against the inner walls of the fixed mould base plate and the movable mould plate and used for locking the core-pulling slide block mechanism.
2. The micro supercharged turbo injection mold according to claim 1, wherein a plurality of shutter tie rods are arranged on the fixed mold base plate, and the shutter tie rods penetrate through the top plate, the movable mold plate and the fixed mold plate; the fixed die base plate, the top plate, the movable die plate, the fixed die plate and the movable die base plate are connected through a plurality of penetrating first guide pillars, and the fixed die plate and the movable die base plate are connected through a plurality of penetrating second guide pillars.
3. The micro pressurized turbine injection mold according to claim 1 or 2, wherein the composite insert comprises an upper mold core, a lower mold core and a fixed molding insert, the fixed molding insert is arranged in the center and used for molding the pressurized turbine blades, the upper mold core is fixed on the movable mold plate through a hexagon screw, and the lower mold core is fixed on the fixed mold plate through a hexagon screw.
4. The micro supercharged turbine injection mold according to claim 3, wherein the core-pulling slider mechanism comprises an upper slider, a lower slider and a slanted slider seat, the upper slider and the lower slider are respectively arranged on the upper side and the lower side of the fixed molding insert, the upper slider is used for upper molding of twisted blades, the lower slider is used for lower molding of twisted blades, the slanted slider seat is fixed on the movable mold base plate, an inclined T-shaped groove is formed in the top of the slanted slider seat, a sliding ball is arranged on the bottom surface of the T-shaped groove and used for guiding sliding, and the lower slanted slider is arranged in the T-shaped groove in a matched manner and used for reciprocating motion.
5. The micro supercharged turbine injection mold of claim 4, wherein the lower slider and the upper slider are staggered by 10 degrees and form a complex spatial structure together with the fixed molding insert.
6. The micro-turbo injection mold according to claim 5, wherein the fixing mechanism comprises shoveling machines, an upper pressing plate and a lower pressing plate, the shoveling machines are arranged in nine groups, the shoveling machines are circumferentially arranged outside the upper sliding block at intervals of 40 degrees and are connected with the upper sliding block, the upper pressing plate is arranged in nine groups and is circumferentially arranged at intervals of 40 degrees, a sliding groove is formed between any two upper pressing plates and is used for being matched with the upper sliding block, the fixed molding insert is fixed on the lower pressing plate and is connected with the lower sliding block through a mortise and tenon structure, and a sliding groove is formed between any two lower pressing plates and is used for being matched with the lower sliding block.
7. The micro-turbo injection mold of claim 6, wherein the lower layer slide block and the upper layer slide block are staggered by 10 ° from each other.
8. The micro supercharged turbine injection mold of claim 7, wherein the locking mechanism comprises an inclined guide post and a limit screw, two limit screws parallel to the T-shaped groove are arranged on the end surface of the upper layer slide block, the inclined guide post is arranged on the upper layer slide block, the upper layer slide block is connected with the shovel machine through the inclined guide post, and a first wear-resistant block is arranged on the end surface of the upper layer slide block close to the shovel machine.
9. The injection mold according to claim 8, wherein the ejection mechanism comprises an ejector pin push plate, a pressing push plate, an ejector pin plate, a coiling Cumsa acceleration ejector, a first return spring set and a second return spring set, an ejection ejector rod of the injection molding machine abuts against the ejector pin push plate through a ko hole, the fixed mold plate and the ejector pin push plate are relatively statically ejected, the coiling Cumsa acceleration ejector is arranged on one side of the ejector pin push plate, when a roller of the coiling Cumsa acceleration ejector contacts a second wear-resistant block in the square iron, a roller on the other side of the coiling Cumsa acceleration ejector tilts to push the ejector pin plate to eject, the pressing push plate is arranged on the other side of the ejector pin push plate, the first return spring set is arranged between the pressing push plate and the movable mold base plate, and the second return spring set is arranged between the ejector pin plate and the movable mold base plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210500810.8A CN114801075B (en) | 2022-05-09 | 2022-05-09 | Miniature booster turbine injection mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210500810.8A CN114801075B (en) | 2022-05-09 | 2022-05-09 | Miniature booster turbine injection mould |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114801075A true CN114801075A (en) | 2022-07-29 |
| CN114801075B CN114801075B (en) | 2023-07-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210500810.8A Active CN114801075B (en) | 2022-05-09 | 2022-05-09 | Miniature booster turbine injection mould |
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| CN114801075B (en) | 2023-07-14 |
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