CN111923342A

CN111923342A - High-quality injection mold and injection molding method

Info

Publication number: CN111923342A
Application number: CN202010733016.9A
Authority: CN
Inventors: 冯文义
Original assignee: Shanghai Dingrui Mould Technology Co ltd
Current assignee: Shanghai Dingrui Mould Technology Co ltd
Priority date: 2020-07-27
Filing date: 2020-07-27
Publication date: 2020-11-13

Abstract

The application relates to a high-quality injection mold and injection molding method, it includes cover half and movable mould, is equipped with the core between cover half and the movable mould and lies in the side core of core both sides, be equipped with core and lower core between cover half and the movable mould, go up the core, lower core, form airtight cavity between core and two side cores, be connected for sliding between side core and the movable mould, the protruding edge that slides on the confession casing of both sides side core breaks away from the side core, is equipped with spacing subassembly between side core and the movable mould, spacing subassembly will incline the core fixed, this application has the effect of guaranteeing that the injection moulding quality of fan shell is good, improves the qualification rate of fan shell.

Description

High-quality injection mold and injection molding method

Technical Field

The application relates to the technical field of fan shell machining, in particular to a high-quality injection mold and an injection molding method.

Background

The air-conditioning fan is a novel, energy-saving, high-efficiency, variable-rotating-speed and low-noise centrifugal fan, the fan has compact structure, convenient installation, small volume, large air quantity, high pressure and small vibration, and can be matched with a three-phase voltage regulator or a frequency converter to realize stepless speed regulation, thereby being particularly suitable for ventilation places with strict noise requirement and large air quantity change range, being an ideal matched product in industries such as air conditioning, purification and the like, and the shell material of the air-conditioning fan is mostly made of plastic materials and is formed by injection molding of an injection molding machine.

The injection mold is a molding mold widely applied to plastic product production, and comprises a movable mold and a fixed mold, wherein the movable mold is arranged on a movable template of an injection molding machine, the fixed mold is arranged on a fixed template of the injection molding machine, the movable mold and the fixed mold are closed to form a pouring system and a cavity during injection molding, a required product is formed through cooling molding, the movable mold and the fixed mold are separated during demolding, and the product is ejected out of the cavity by using an ejection mechanism.

Referring to fig. 1, the conventional fan casing includes a casing 9, the casing 9 is open, opposite semicircular notches 91 are formed in two opposite sides of the casing 9, and an arc-shaped protruding edge 92 is fixedly disposed at a position of a side wall of the casing 9, where the position is located at the semicircular notch 91.

In view of the above-mentioned related technologies, the inventor believes that there is a defect that after the fan casing is injection molded, if the fan casing is directly ejected, the convex edge is obstructed by the side core of the mold, and the convex edge is easily broken and damaged.

Disclosure of Invention

In order to solve the problem that after the fan shell is subjected to injection molding, if the fan shell is directly ejected out, the convex edge is blocked by the side core of the mold, and the convex edge is easily broken and damaged, the application provides a high-quality injection mold and an injection molding method.

In a first aspect, the present application provides a high quality injection mold, which adopts the following technical scheme:

the utility model provides a high quality injection mold, includes cover half and movable mould, is equipped with the core between cover half and the movable mould and lies in the side core of core both sides, be equipped with core and time core between cover half and the movable mould, go up the core, form airtight cavity between core, core and two side cores, for sliding between side core and the movable mould and be connected, the protruding edge that slides on the confession casing of both sides side core breaks away from the side core, is equipped with spacing subassembly between side core and the movable mould, and spacing subassembly will incline the core fixed.

Through adopting above-mentioned technical scheme, after the mould is moulded plastics and is accomplished, make cover half and movable mould break away from through the injection molding machine, the casing after accomplishing of moulding plastics this moment is located the movable mould, open spacing subassembly and make the side core can slide on the movable mould, make two side cores deviate from each other through the injection molding machine and slide, and then make protruding edge expose no longer receive the hindrance of side core, again with the casing release the movable mould can, when effectively having prevented the casing deciduate, protruding edge easily receives the hindrance and causes the damage, and then guaranteed that the injection moulding quality of fan shell is good, the qualification rate of fan shell has been improved.

Preferably, the movable mould is close to the lateral wall of cover half and has been seted up a plurality of spacing grooves, the spacing inslot interpolation is equipped with the gag lever post, the side core includes nearly core and far board, go up the core, lower core, form airtight cavity between core and two nearly cores, far board fixed connection is at the lateral wall that nearly core deviates from each other, far board is close to the lateral wall of movable mould and offers the spacing hole that supplies the gag lever post to pass, spacing hole sets up for the slope on the horizontal plane, spacing downthehole wall and gag lever post outer wall laminating, the gag lever post is located and leaves the distance between lateral wall and the spacing inslot wall of spacing inslot, this distance is not less than the width on protruding edge.

Through adopting above-mentioned technical scheme, when the side core removed, the distance board moved the gag lever post and removed, and the gag lever post removes in the spacing inslot simultaneously, and when gag lever post and spacing inslot wall butt, the side core can not continue to remove, under the circumstances that the core can stably slide guaranteeing to incline, has effectively prevented the sliding distance overlength of side core, causes unnecessary wasting of resources.

Preferably, the limiting assembly comprises a plurality of magnetic plates, the magnetic plates are fixedly connected with the side wall of the movable die close to the fixed die, and the side wall of the magnetic plate, which deviates from the movable die, is tightly attracted with the side core.

Through adopting above-mentioned technical scheme, setting up of magnetic sheet makes the slip between side core and the movable mould more stable, and when the side core was fixed through spacing subassembly, the magnetic sheet can make the fixed of side core more firm.

Preferably, the side wall that nearly core deviates from each other is fixed to inlay and is equipped with the connecting plate, and the connecting plate deviates from the lateral wall fixedly connected with cardboard of nearly core, and the draw-in groove has all been seted up to the lateral wall that the cardboard is close to the gag lever post, draw-in groove inner wall and gag lever post lateral wall laminating.

Through adopting above-mentioned technical scheme, the setting of connecting plate and cardboard has effectively prevented that the gag lever post from taking place for the rotation of far away the board, and then has guaranteed that the laminating between spacing hole and the gag lever post is respond well to and gag lever post and spacing groove carry out good stable spacing to the side core.

Preferably, the opposite side walls of the movable mold are fixedly connected with fixing blocks, the side walls of the fixing blocks are fixedly connected with positioning blocks, the positioning blocks are used for blocking the far plates from sliding, and the distance between the positioning blocks and the far plates is not less than the width of the convex edges.

Through adopting above-mentioned technical scheme, the setting of fixed block and locating piece can prevent effectively that the displacement on the movable mould of side core from being long, causes unnecessary wasting of resources, and then has improved the security that the side core slided.

Preferably, the side wall of the movable mould close to the fixed mould is fixedly connected with a guide plate, the length direction of the guide plate is parallel to the sliding direction of the side core, the side wall of the far plate close to the movable mould is provided with a guide groove, and the side core drives the guide groove to slide on the guide plate.

Through adopting above-mentioned technical scheme, the setting up of deflector and guide way can play the effect of direction to sliding of side core, has prevented effectively that the side core from taking place the ascending displacement in non-slip direction, causes the damage on protruding edge, and further assurance the quality of moulding plastics of fan shell is good.

Preferably, the end surface of the limiting rod, which is positioned in the limiting groove, is arc-shaped.

Through adopting above-mentioned technical scheme, circular-arc setting has effectively reduced the frictional force between gag lever post and the spacing groove, has reduced the wearing and tearing between gag lever post and the spacing groove, and then has improved the life of gag lever post and spacing groove.

Preferably, the movable mould comprises a base plate, a connecting mould and an injection mould in sequence from the direction away from the fixed mould to the direction close to the fixed mould, the base plate is fixedly connected with the connecting mould and the injection mould, a driving assembly is arranged on the movable mould and comprises a driving plate and a driving column, the driving plate is connected with the base plate in a sliding mode inside the connecting mould, the driving column is fixedly connected with the driving plate and penetrates through the base plate, the driving column is connected with the base plate in a sliding mode, a plurality of ejector rods are fixedly connected with the side wall of the driving plate, and one end, far away from the driving plate.

Through adopting above-mentioned technical scheme, the injection molding machine promotes the drive post and slides on the bedplate, and the drive post drives drive plate and ejector pin and slides towards the cover half, and the ejector pin is ejecting with the cover half and breaks away from the movable mould for injection mold's demoulding convenient and fast more.

Preferably, the side wall of the seat plate close to the connecting die is fixedly connected with a horizontally arranged guide post, and the drive plate is penetrated through and connected with the guide post in a sliding manner.

Through adopting above-mentioned technical scheme, the setting up of guide post makes the moving direction of drive assembly and ejector pin remain stable, prevents effectively that the removal of cover half from producing the skew and colliding the protruding edge of fan shell and causing the damage, and further assurance the quality of fan shell is good.

In a second aspect, the present application provides an injection molding method for a high-quality injection mold, which adopts the following technical scheme:

an injection molding method of a high-quality injection mold comprises the following steps:

s1, attaching the movable mold and the fixed mold by using an injection molding machine to form a sealed cavity;

s2, injecting PS plastic into the sealed chamber, and adding 8% -13% of diniconazole sebacate;

s3, adding 1% -2% of dibutyl tin and 0.5% -1% of barium stearate into the sealed chamber;

s4, adding 0.5-1.5% of stearic acid into the sealed chamber;

s5, cooling after the injection molding is finished;

s6, enabling the two side cores to deviate from each other to move through an injection molding machine, and starting a driving assembly to enable an ejector rod to separate the fixed die from the movable die for demolding;

and S7, horizontally sliding the two side cores towards the direction away from each other through an injection molding machine, and exposing the convex edges.

By adopting the technical scheme, when the PS plastic is injected, the di-fortunes sebacate is injected into the sealed cavity, the shaping of the PS plastic can be improved, the secondary valence bonds among resin molecules are weakened, the mobility of resin molecular bonds is increased, the crystallinity of the resin molecules is reduced, the plasticity of the resin molecules is increased, the flexibility of the resin molecules is enhanced, the processing is easier, the di-butyl tartar and barium stearate are added, the vertical stability of PVC is kept, the decomposition and aging of the PVC are effectively prevented, the lubricity of the PS plastic can be increased by adding the stearate, the energy consumption during operation is reduced, the PS plastic is cooled after the injection molding is finished, after the cooling molding is finished, the fixed mold is ejected out through the driving component to be away from the movable mold, the side core is driven by the injection molding machine to slide to expose the convex edge, the fan shell can be safely taken down, and the quality of the molded fan shell is.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the fixed die and the movable die are separated through the injection molding machine, the limiting assembly is opened to enable the side cores to slide on the movable die, the two side cores are enabled to deviate from each other and slide through the injection molding machine, so that the protruding edge is exposed and is not blocked by the side cores, the damage caused by the fact that the protruding edge is easily blocked when the shell is subjected to demolding is effectively prevented, the good injection molding quality of the fan shell is ensured, and the qualification rate of the fan shell is improved;

2. when the side core moves, the far plate drives the limiting rod to move, meanwhile, the limiting rod moves in the limiting groove, when the limiting rod is abutted against the inner wall of the limiting groove, the side core cannot move continuously, and under the condition that the side core can stably slide, the unnecessary resource waste caused by overlong sliding distance of the side core is effectively prevented;

3. the connecting plate has effectively prevented with setting up of cardboard that the gag lever post from taking place for the rotation of far away the board, and then has guaranteed that the laminating between spacing hole and the gag lever post is respond well to and the gag lever post carries out good stable spacing with spacing groove to the side core.

Drawings

FIG. 1 is a schematic view showing the structure of a fan case;

FIG. 2 is a schematic structural diagram of an embodiment of the present application;

fig. 3 is an exploded sectional view for showing a side core;

FIG. 4 is an exploded view of the spacing groove;

FIG. 5 is a schematic diagram showing the structure of the driving assembly.

In the figure, 1, a fixed die; 2. moving the mold; 21. a seat plate; 211. a guide post; 22. connecting the dies; 23. injection molding; 3. feeding a core; 4. core setting; 5. a core; 6. a side core; 61. a proximal core; 62. a distal plate; 621. a guide groove; 622. a guide plate; 7. a limiting groove; 71. a limiting rod; 72. a limiting hole; 73. a magnetic plate; 74. a connecting plate; 75. clamping a plate; 76. a card slot; 77. a fixed block; 78. positioning blocks; 8. a drive assembly; 81. a drive plate; 811. a carrier plate; 812. a top rod; 82. a drive column; 9. a housing; 91. a semi-annular notch; 92. and (4) a convex edge.

Detailed Description

The present application is described in further detail below with reference to figures 1-5.

The embodiment of the application discloses a high-quality injection mold.

Referring to fig. 1, the fan casing includes a casing 9, the casing 9 is open, opposite semicircular notches 91 are provided on opposite sides of the casing 9, and an arc-shaped convex edge 92 is fixedly provided at a position of the side wall of the casing 9, which is located on the semicircular notches 91.

As shown in fig. 2 and 3, the injection mold comprises a fixed mold 1 and a movable mold 2 which are vertically arranged, the arrangement directions of the fixed mold 1 and the movable mold 2 are horizontally arranged, the movable mold 2 sequentially comprises a seat plate 21, a connecting mold 22 and an injection mold 23 from a direction far away from the fixed mold 1 to a direction close to the fixed mold 1, the seat plate 21, the connecting mold 22 and the injection mold 23 are fixedly connected, the side wall of the fixed mold 1 close to the injection mold 23 is fixed with an upper core 3, the side wall of the injection mold 23 close to the fixed mold 1 is fixed with a lower core 4, two cores 5 and two side cores 6 symmetrically arranged at two sides, each side core 6 comprises a near core 61 and a far plate 62, each upper core 3, each lower core 4, a closed cavity is formed between the two cores 5 and the two near cores 61, and the far plates 62.

As shown in fig. 3 and 4, the side core 6 is connected with the injection mold 23 in a horizontal sliding manner, two limiting grooves 7 are horizontally formed in the side wall of the injection mold 23 close to the fixed mold 1, the cross section area of each limiting groove 7 is gradually increased from the injection mold 23 to the fixed mold 1, the side wall of each limiting groove 7 far away from the shell 9 is vertically arranged, the side wall of each limiting groove 7 adjacent to the vertical side wall is in a circular arc shape with a horizontal inclination, a limiting rod 71 is inserted in each limiting groove 7 in the horizontal inclination manner, the end face of each limiting rod 71 located in each limiting groove 7 is in a circular arc shape, a limiting hole 72 with a horizontal inclination is formed in the side wall of the far plate 62 far away from the fixed mold 1, each limiting hole 72 is penetrated by the corresponding limiting rod 71 and is attached to the inner wall of the corresponding limiting groove, a distance is reserved between the side wall of the limiting rod.

After finishing moulding plastics, make cover half 1 and injection mould 23 break away from through the injection molding machine to drive two side cores 6 through the injection molding machine and slide towards the direction of deviating from, make the protruding edge 92 of fan shell expose, protruding edge 92 receives the damage when effectively having prevented the fan shell to take out, side core 6 is when sliding, distal plate 62 drives gag lever post 71 and removes in spacing groove 7, spacing groove 7 inner wall carries on spacingly to gag lever post 71, in order to prevent that side core 6 displacement from overlength, cause the waste of resource.

As shown in fig. 4, the opposite side walls of the injection mold 23 are fixedly connected with fixing blocks 77, the fixing blocks 77 are located at the top of the side walls of the injection mold 23, the side walls of the fixing blocks 77 are fixedly connected with positioning blocks 78, the positioning blocks 78 are used for blocking the displacement of the far plate 62, and the distance between the positioning blocks 78 and the far plate 62 is greater than the width of the convex edge 92; the side core 6 is blocked by the positioning block 78 when moving, so that unnecessary resource waste caused by too long moving distance of the side core 6 on the moving die 2 is further effectively prevented, and the sliding safety of the side core 6 is further improved.

As shown in fig. 4, a limiting component is arranged between the far plate 62 and the injection mold 23, the limiting component comprises a plurality of magnetic plates 73, the magnetic plates 73 are vertically and fixedly connected to the side wall of the injection mold 23 close to the fixed mold 1, and the bottom wall is attached to the far plate 62 and mutually attracted; the far plate 62 is more stable during movement due to the attractive force between the far plate 62 and the magnetic plate 73, while the magnetic plate 73 also makes the fixation of the side core 6 more secure.

As shown in fig. 4, obliquely arranged connecting plates 74 are fixedly embedded in the side walls of the proximal cores 61 which are away from each other, the oblique direction of the connecting plates 74 is consistent with the oblique direction of the stop rod 71, two horizontally arranged clamping plates 75 are fixedly connected to the side walls of the connecting plates 74 which are away from each other, clamping grooves 76 are respectively formed in the side walls of the adjacent clamping plates 75 which are away from each other, the inner walls of the clamping grooves 76 are arc-shaped and are attached to the outer wall of the stop rod 71; when the side core 6 slides, the limiting rod 71 can be effectively prevented from rotating relative to the far plate 62 and generating displacement in the horizontal direction, the pressure on the inner wall of the limiting hole 72 is reduced, the laminating effect between the limiting hole 72 and the limiting rod 71 is good, and the limiting rod 71 and the limiting groove 7 can perform good stable limiting on the side core 6.

As shown in fig. 4, a horizontally arranged guide plate 622 is fixedly connected to the side wall of the injection mold 23 close to the fixed mold 1, a guide groove 621 is formed in the side wall of the far plate 62 close to the injection mold 23, the guide plate 622 is located in the guide groove 621, and the far plate 62 drives the guide groove 621 to slide on the guide plate 622 when sliding; when the side core 6 slides, the guide plate 622 and the guide groove 621 can play a guiding role for the side core 6, so that the side core 6 is effectively prevented from generating deviation in the vertical direction, the damage of the convex edge 92 is further caused, and the injection molding quality of the fan shell is further ensured to be good.

As shown in fig. 5, a driving assembly 8 is arranged on the moving mold 2, the driving assembly 8 comprises a vertically arranged driving plate 81 and a plurality of horizontally arranged driving columns 82, a vertically arranged bearing plate 811 is fixedly connected to the side wall of the driving plate 81, which is far away from the seat plate 21, the driving columns 82 penetrate through the seat plate 21 and the driving plate 81 and then are fixedly connected to the side wall of the bearing plate 811, the driving columns 82 are horizontally connected to the seat plate 21 and the bearing plate 811 in a sliding manner, a horizontally arranged ejector rod 812 is fixedly connected to the side wall of the bearing plate 811, which is far away from the driving plate 81, and the ejector rod 812 penetrates through the; the driving column 82 is pushed by the injection molding machine, so that the bearing plate 811 moves towards the fixed mold 1, and then the ejector rod 812 pushes the fixed mold 1 outwards and gradually keeps away from the movable mold 2, and the injection mold is more convenient and faster to demould.

As shown in fig. 3, a horizontally arranged guide post 211 is fixedly connected between the seat plate 21 and the injection mold 23, and the drive plate 81 and the bearing plate 811 are penetrated and slidably connected by the guide post 211; guide post 211 can play the effect of direction to the removal of loading board 811, has prevented effectively that loading board 811 from causing the ascending removal of non-slip side, leads to the removal of cover half 1 to appear the deviation, and then makes the fan shell receive the damage to this injection moulding quality of having guaranteed the fan shell is good, has improved the qualification rate.

The implementation principle of the high-quality injection mold provided by the embodiment of the application is as follows: after finishing the cooling of moulding plastics, promote the actuating lever level through the injection molding machine and remove towards cover half 1, and then make loading board 811 drive ejector pin 812 with the direction promotion that cover half 1 orientation deviates from movable mould 2, rethread injection molding machine drives two side cores 6 and slides towards the direction of deviating from, simultaneously far plate 62 drives guide way 621 and slides on guide way 622, far plate 62 slides on magnetic sheet 73, gag lever post 71 slides in spacing groove 7, gag lever post 71 and spacing groove 7, the setting of fixed block 77 and locating piece 78 all can prevent effectively that side core 6 displacement from overlength, can take off the fan shell after protruding edge 92 exposes, the injection moulding quality of having guaranteed the fan shell is good, the qualification rate of fan shell has been improved.

The embodiment of the application also discloses an injection molding method of the high-quality injection mold.

The method comprises the following steps:

s1, attaching the movable mold 2 and the fixed mold 1 by using an injection molding machine to form a sealed cavity;

s4, adding 0.5-1.5% of stearic acid into the sealed chamber;

s5, cooling after the injection molding is finished;

s6, enabling the two side cores 6 to move away from each other through the injection molding machine, and starting the driving assembly 8 to enable the ejector rods 812 to separate the fixed die 1 from the movable die 2;

s7, the two side cores 6 are horizontally slid by the injection molding machine in a direction away from each other, and the flange 92 is exposed.

The implementation principle of the injection molding method of the high-quality injection mold in the embodiment of the application is as follows: when the fixed die 1 and the movable die 2 are closed, PS plastic is injected into the sealed cavity, and then dinaphthyl sebacate, dibutyl tin, barium stearate and stearic acid are sequentially added into the sealed cavity, the dinaphthyl sebacate can improve the shaping of the PS plastic, so that the flexibility of the PS plastic is enhanced, the PS plastic is easier to process, the dibutyl tin and the barium stearate can keep the vertical stability of PVC, the decomposition and aging of the PVC are effectively prevented, meanwhile, the stearic acid ester can increase the lubricity of PS plastics, reduce the energy consumption during operation, judge the added content according to the requirement of the actual fan shell, after the injection molding is finished, cooling and molding are carried out, the fixed mold 1 is ejected out through the driving component 8 and exposed out of the fan shell, the side cores 6 are driven by the injection molding machine to slide away from each other and expose the convex edges 92, can take off the fan shell safely, guarantee that the injection molding quality of fan shell is good, improve the qualification rate of fan shell.

The embodiments of the present invention are preferred embodiments of the present application, and the scope of protection of the present application is not limited by the embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a high quality injection mold, includes cover half (1) and movable mould (2), is equipped with core (5) and is located side core (6) of core (5) both sides between cover half (1) and movable mould (2), its characterized in that: be equipped with between cover half (1) and movable mould (2) core (3) and lower core (4), go up core (3), lower core (4), core (5) and two and incline and form airtight cavity between core (6), incline for sliding between core (6) and the movable mould (2) and be connected, the protruding edge (92) on the confession casing (9) that slides of both sides side core (6) break away from side core (6), be equipped with spacing subassembly between side core (6) and movable mould (2), spacing subassembly will incline core (6) and fix.

2. A high quality injection mold in accordance with claim 1 wherein: a plurality of spacing grooves (7) have been seted up to the lateral wall that movable mould (2) are close to cover half (1), spacing groove (7) interpolation is equipped with gag lever post (71), side core (6) are including nearly core (61) and far away board (62), go up core (3), lower core (4), form airtight cavity between core (5) and two nearly cores (61), far away board (62) fixed connection is at the lateral wall that nearly core (61) deviate from each other, spacing hole (72) that supply gag lever post (71) to pass are seted up to the lateral wall that far away board (62) are close to movable mould (2), spacing hole (72) are the slope setting on the horizontal plane, spacing hole (72) inner wall and gag lever post (71) outer wall laminating, leave the distance between lateral wall that gag lever post (71) are located spacing groove (7) and spacing groove (7) inner wall, this distance is not less than the protruding width along (92).

3. A high quality injection mold in accordance with claim 2 wherein: the limiting assembly comprises a plurality of magnetic plates (73), the magnetic plates (73) are fixedly connected with the side wall of the movable mold (2) close to the fixed mold (1), and the side wall of the magnetic plate (73) departing from the movable mold (2) is tightly attracted with the side core (6).

4. A high quality injection mold in accordance with claim 2 wherein: nearly core (61) the fixed connecting plate (74) of inlaying of lateral wall that deviates from each other, lateral wall fixedly connected with cardboard (75) that connecting plate (74) deviates from nearly core (61), draw-in groove (76) have all been seted up to the lateral wall that cardboard (75) are close to gag lever post (71), draw-in groove (76) inner wall and gag lever post (71) lateral wall laminating.

5. A high quality injection mold in accordance with claim 2 wherein: the relative lateral wall fixedly connected with fixed block (77) of movable mould (2), fixed block (77) lateral wall fixedly connected with locating piece (78), locating piece (78) are used for blockking far away board (62) and slide, and the distance between locating piece (78) and far away board (62) is not less than the width of protruding edge (92).

6. A high quality injection mold in accordance with claim 2 wherein: the lateral wall fixedly connected with deflector (622) that movable mould (2) are close to cover half (1), the length direction of deflector (622) is on a parallel with the slip direction of side core (6), and guide way (621) have been seted up to the lateral wall that board (62) are close to movable mould (2) far away, and side core (6) drive guide way (621) slide on deflector (622).

7. A high quality injection mold in accordance with claim 2 wherein: the end face of the limiting rod (71) positioned in the limiting groove (7) is arc-shaped.

8. A high quality injection mold in accordance with claim 1 wherein: moving mould (2) is by keeping away from cover half (1) to being close to cover half (1) direction and including bedplate (21) in proper order, connecting die (22) and injection mould (23), bedplate (21) are fixed connection with connecting die (22) and injection mould (23), be equipped with drive assembly (8) on moving mould (2), drive assembly (8) are including drive plate (81) and drive post (82), drive plate (81) slide and be connected with bedplate (21) inside connecting die (22), drive post (82) run through bedplate (21) with drive plate (81) fixed connection, drive post (82) are connected for sliding with bedplate (21), a plurality of ejector pins (812) of drive plate (81) lateral wall fixedly connected with, the one end that drive plate (81) were kept away from in ejector pin (812) runs through behind injection mould (23) with cover half (1) butt.

9. A high quality injection mold in accordance with claim 8 wherein: the side wall of the seat plate (21) close to the connecting die (22) is fixedly connected with a horizontally arranged guide post (211), and the drive plate (81) is penetrated through and connected with the guide post (211) in a sliding manner.

10. An injection molding method of a high-quality injection mold is characterized in that: the method comprises the following steps:

s1, attaching the movable mold (2) and the fixed mold (1) by using an injection molding machine to form a sealed cavity;

s4, adding 0.5-1.5% of stearic acid into the sealed chamber;

s5, cooling after the injection molding is finished;

s6, enabling the two side cores (6) to move away from each other through an injection molding machine, and starting a driving assembly (8) to enable the ejector rods (812) to separate the fixed die (1) from the movable die (2) for demolding;

s7, horizontally sliding the two side cores (6) towards the direction of separating from each other through an injection molding machine, and exposing the convex edge (92).