CN217169575U

CN217169575U - Precision mold convenient to rotate and eject

Info

Publication number: CN217169575U
Application number: CN202221064494.6U
Authority: CN
Inventors: 黄钧浩; 薛明明; 龚银桥
Original assignee: Shenzhen Huidali Mould Technology Co ltd
Current assignee: Shenzhen Huidali Mould Technology Co ltd
Priority date: 2022-05-06
Filing date: 2022-05-06
Publication date: 2022-08-12
Anticipated expiration: 2032-05-06

Abstract

The utility model relates to the technical field of injection molds, and provides a precision mold convenient for rotary ejection, which comprises a fixed mold plate and a movable mold plate, wherein the movable mold plate is provided with a mold core near the middle of the fixed mold plate, the interior of the mold core is provided with a rotary mechanism suitable for demolding a screw hole, the rotary mechanism comprises a bar-shaped column and a fixed block, and the lower part of the bar-shaped column is provided with a rack; a transmission shaft is arranged between the strip-shaped column and the fixed block, penetrates through the fixed block and is rotatably connected with the fixed block, a first gear is sleeved at one end, close to the strip-shaped column, of the transmission shaft, a first conical gear is arranged at one end, close to the fixed block, of the transmission shaft, and a rotating part suitable for screwing out a bolt is rotatably connected to one side, close to the fixed die plate, of the fixed block; the utility model discloses a rotary mechanism is to the screw hole autogiration drawing of patterns, simple structure, and the mould is accurate, and reasonable in design improves drawing of patterns efficiency, and then improves the output of product.

Description

Precision mold convenient to rotate and eject

Technical Field

The utility model relates to an injection mold technical field particularly, relates to a precision mold convenient to it is rotatory ejecting.

Background

The mould is an important technical device for producing industrial products, which shapes raw materials in a certain way by using a special shape of the mould, and is widely applied in modern product production because the mould has high processing efficiency, good interchangeability and raw material saving, the production and the updating of the products are based on the manufacture and the updating of the mould, and because the requirements of product varieties and output are great, higher and higher requirements are provided for the mould, thereby promoting the continuous forward development of the mould.

Although the injection mold in China is greatly developed at present, the difference between the injection mold and developed industrial countries is still large in the aspects of large, precise, complex and long-life high-grade molds, in the mold market, some low-grade plastic molds are over-supplied and have strong market competition, and the large, precise, complex and long-life high-grade molds are not supplied and are still imported from abroad; when the mold of the intelligent toy shell is manufactured, the shell is fixed by screws, and in the rotary ejection mechanism of the mold for forming the intelligent toy shell at the current stage, the mold cavity and the mold core are separated firstly, the mold bolt is screwed out through the rotating mechanism, and finally, the formed product is ejected out, so that the structure is complex, the precision is not enough, the demolding efficiency is influenced, and the yield of the product is reduced.

SUMMERY OF THE UTILITY MODEL

The utility model provides a problem be rotary mechanism to the screw hole autogiration drawing of patterns, simple structure, the mould is accurate, reasonable in design improves drawing of patterns efficiency, and then improves the output of product.

In order to solve the problems, the utility model provides a precision mold convenient for rotary ejection, which comprises a fixed mold plate and a movable mold plate, wherein a mold core is arranged in the movable mold plate close to the middle of the fixed mold plate, a rotary mechanism suitable for demolding a screw hole is arranged inside the mold core, the rotary mechanism comprises a bar-shaped column and a fixed block, and a rack is arranged at the lower part of the bar-shaped column; the bar post with be provided with the transmission shaft between the fixed block, the transmission shaft passes the fixed block, and with the fixed block rotates to be connected, the transmission shaft is close to a pot head of bar post is equipped with first gear, the transmission shaft is close to the one end of fixed block is provided with first conical gear, the fixed block is close to one side of fixed die plate is rotated and is connected with the rotary part that is suitable for twisting out the bolt.

As a further aspect of the present invention: and the inner side surfaces of the fixed template and the movable template are provided with guide fixing mechanisms which are suitable for closing and fixing the fixed template and the movable template.

As a further aspect of the present invention: the guide fixing mechanism comprises a guide post, an upper guide sleeve and a lower guide sleeve, the upper guide sleeve is fixed on the inner side of the fixed die plate, the lower guide sleeve is fixed on the inner side of the movable die plate, and the guide post is rotatably connected with the upper guide sleeve and the lower guide sleeve.

As a further aspect of the present invention: the lower part of the guide pillar is provided with a first thread, and the lower part of the lower guide sleeve is provided with a first thread groove matched with the first thread.

As a further aspect of the present invention: the guide fixing mechanism is obliquely arranged inside the fixed template and the movable template.

As a further aspect of the present invention: the rotating part comprises a long transmission rod, a second screw groove is formed in the inner wall of the upper portion of the long transmission rod, a second stud which is matched with the second screw groove and screwed is arranged inside the long transmission rod, and a second conical gear is fixed at one end, far away from the second stud, of the long transmission rod.

As a further aspect of the present invention: the first conical gear is vertically and rotatably connected with the second conical gear.

As a further aspect of the present invention: the outside cover of long drive rod is equipped with the second gear, the side of long drive rod be provided with a plurality ofly with the short drive rod that the fixed block rotated the connection, short drive rod is close to one side bottom of second conical gear is fixed with the second gear, it is a plurality of the second gear looks mutual rotation is connected.

As a further aspect of the present invention: the core is characterized in that a plurality of water-cooling pipelines with the same surface structure as the upper surface of the core are arranged inside the core, a flow divider suitable for water flow distribution is arranged at a water inlet of each water-cooling pipeline, and a flow collector suitable for water flow confluence is arranged at a water outlet of each water-cooling pipeline.

As a further aspect of the present invention: one side that the movable mould board kept away from the core is provided with the release link, the outside cover of release link is equipped with the spring, be provided with the fixed plate below the release link, be fixed with a plurality of ejector pins that are suitable for the jack-up drawing of patterns above the fixed plate.

Compared with the prior art, the utility model discloses a fixed die plate drives the bar post and shifts up, the core is fixed in fixed die plate upper portion, be provided with the fixed block in the core, rack and first gear contact to drive first gear revolve, first gear drives the transmission shaft at the fixed block internal rotation, the transmission shaft drives first bevel gear and rotates, first bevel gear drives rotary part and rotates, screw bolt in the screw hole autogiration drawing of patterns is twisted out, moreover, the steam generator is simple in structure, the mould is accurate, and reasonable design improves drawing of patterns efficiency, and then improves the output of product.

Drawings

Fig. 1 is a schematic view of the overall structure of a precision mold convenient for rotary ejection according to the present invention;

fig. 2 is a schematic structural view of the guiding and fixing mechanism of the present invention;

fig. 3 is a schematic structural diagram of a rotating mechanism according to the present invention;

fig. 4 is a schematic structural view of a rotating member in the present invention;

fig. 5 is a second schematic structural view of the rotating mechanism of the present invention;

fig. 6 is a schematic diagram of the positions of the middle water cooling pipeline, the flow divider and the flow collector of the present invention.

Description of reference numerals:

1-fixing a template; 2-moving the template; 3-a guiding and fixing mechanism; 31-guide pillar; 32-upper guide sleeve; 33-lower guide sleeve; 34-a first thread; 35-a first screw groove; 36-a coupling; 37-motor 4-core; 5-a rotating mechanism; 51-bar columns; 52-a rack; 53-fixed block; 54-a drive shaft; 55-a first gear; 56-first conical gear; 57-a rotating member; 571-long driving rod; 572-a second spiral groove; 573-a second stud; 574-second conical gear; 58-a second gear; 59-short drive rod; 6, fixing a plate; 7-a mandril; 8-a reset lever; 9-a spring; 10-water cooling pipeline; 11-a flow divider; 12-current collector.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanied with figures are described in detail below.

In the coordinate system XYZ provided herein, the X axis represents the right direction in the forward direction, the X axis represents the left direction in the reverse direction, the Y axis represents the front direction, the Y axis represents the rear direction in the reverse direction, the Z axis represents the upper direction in the forward direction, and the Z axis represents the lower direction in the reverse direction. Also, it is noted that the terms "first," "second," and the like in the description and claims of the present invention and in the above-described drawings are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or otherwise described herein.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; may be a mechanical connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the description herein, references to the description of the terms "an example," "one example," and "one implementation," etc., mean that a particular feature, structure, material, or characteristic described in connection with the example or implementation is included in at least one example or implementation of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or implementation. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or implementations.

At the present stage, when the intelligent toy shell is manufactured, the mold cavity and the mold core are separated firstly, the mold bolt is screwed out through the rotating mechanism, and finally the molded product is ejected out, so that the structure is complex, the precision is not enough, the demolding efficiency is influenced, and the yield of the product is reduced.

In order to solve the above problems, as shown in fig. 1 and 3, the utility model provides a precision mold convenient for rotary ejection, which comprises a fixed mold plate 1 and a movable mold plate 2, wherein the movable mold plate 2 is provided with a mold core 4 near the middle of the fixed mold plate 1, a rotating mechanism 5 suitable for demolding a screw hole is arranged inside the mold core 4, the rotating mechanism 5 comprises a bar-shaped column 51 and a fixed block 53, and the lower part of the bar-shaped column 51 is provided with a rack 52; a transmission shaft 54 is arranged between the strip-shaped column 51 and the fixed block 53, the transmission shaft 54 penetrates through the fixed block 53 and is rotatably connected with the fixed block 53, a first gear 55 is sleeved at one end, close to the strip-shaped column 51, of the transmission shaft 54, a first conical gear 56 is arranged at one end, close to the fixed block 53, of the transmission shaft 54, and a rotating part 57 suitable for screwing out a bolt is rotatably connected to one side, close to the fixed die plate 1, of the fixed block 53.

It should be noted that a cavity is arranged on one side of the fixed die plate 1 close to the movable die plate 2, a core 4 is arranged on one side of the movable die plate 2 close to the fixed die plate 1, the core 4 and the cavity are mutually closed to form a model convenient for pouring, and in order to enable the intelligent toy shell with internal threads to be convenient for automatic rotary demoulding, a rotating mechanism 5 is arranged inside the core 4; the upper part of the strip-shaped column 51 is fixed at the inner side of the fixed template 1, the lower part of the strip-shaped column 51 is inserted into the inner side of the movable template 2, and is movably connected with the movable template 2, a fixed block 53 is fixed at one side of the mold core 4 close to the mold cavity, a transmission shaft 54 is arranged between the fixed block 53 and the strip-shaped column 51 and is rotatably connected with the fixed block 53, in order to enable the transmission shaft 54 to rotate, a first gear 55 is sleeved at one end of the rotating shaft connected with the bar-shaped column 51, a rack 52 is arranged at the lower part of the bar-shaped column 51, the bar-shaped column 51 moves upwards, so that the rack 52 drives the first gear 55 to rotate, a first conical gear 56 is arranged on the other side of the transmission shaft 54, the transmission shaft 54 drives the first conical gear 56 to rotate, in order to enable the first conical gear 56 to perform steering transmission and screw out the bolt, a rotating component 57 is rotatably connected to one side of the fixed block 53 close to the fixed die plate 1, and the lower end of the rotating component 57 is connected with a first bevel gear 56.

In this embodiment, the fixed die plate 1 drives the bar-shaped column 51 to move upwards, the rack 52 contacts with the first gear 55 and drives the first gear 55 to rotate, the first gear 55 drives the transmission shaft 54 to rotate in the fixed block 53, the transmission shaft 54 drives the first conical gear 56 to rotate, and the first conical gear 56 drives the rotating component 57 to rotate, so as to cooperate with the ejector rod 7 to screw out the bolt in the die.

Wherein, in order to improve product output, the mould adopts a mould two chambeies, can be epitheca or inferior valve simultaneously, and at this moment, the inside both sides of core 4 are provided with rotary mechanism 5 respectively, also can be epitheca and the inferior valve that intelligent toy corresponds, only need set up rotary mechanism 5 in casing one side that has the internal thread.

In an embodiment of the present invention, the inner side of the fixed die plate 1 and the movable die plate 2 is provided with a guiding and fixing mechanism 3, which is suitable for the fixed die plate 1 and the movable die plate 2 to be assembled and fixed to each other.

It should be noted that, the fixed die plate 1 is connected with the upper die base, a pouring gate and a pouring channel which are convenient for pouring are arranged at the middle position between the fixed die plate 1 and the upper die base, the fixed die plate 1 is positioned at the upper part of the movable die plate 2, in order to enable the fixed die plate 1 and the movable die plate 2 to be more accurate in positioning and guiding during die assembly and pouring, a cavity keeps a correct shape after the die is closed, position deviation can not occur to cause uneven wall thickness or deformation of a plastic part, the part is prevented from being damaged due to collision when the cavity and a core 4 are closed, meanwhile, automatic die opening is carried out after die locking fixing or injection molding, a guiding and fixing mechanism 3 is arranged on the inner side surfaces of the fixed die plate 1 and the movable die plate 2, the upper end of the guiding and fixing mechanism 3 is arranged at the top of the fixed die plate 1, and the other end of the guiding and fixing mechanism 3 is fixed at the bottom of the inner side of the movable die plate 2.

In this embodiment, the guiding and fixing mechanism 3 is arranged inside the side surfaces of the fixed die plate 1 and the movable die plate 2, and the guiding and fixing mechanism 3 automatically rotates, so that the fixed die plate 1 and the movable die plate 2 are automatically separated, and the rotating mechanism 5 in the core 4 is driven to automatically rotate and demold the screw hole.

In an embodiment of the present invention, as shown in fig. 2, the guiding and fixing mechanism 3 includes a guide pillar 31, an upper guide sleeve 32 and a lower guide sleeve 33, the upper guide sleeve 32 is fixed to the inner side of the fixed die plate 1, the lower guide sleeve 33 is fixed to the inner side of the movable die plate 2, and the guide pillar 31 is rotatably connected to the upper guide sleeve 32 and the lower guide sleeve 33.

It should be noted that, in order to make the positioning and guiding of the fixed die plate 1 and the movable die plate 2 more accurate during mold closing and casting, the upper guide sleeve 32 is fixed inside the fixed die plate 1, the lower guide sleeve 33 is fixed inside the movable die plate 2, the guide post 31 passes through the upper guide sleeve 32 and is rotatably connected with the lower guide sleeve 33, in order to facilitate the automatic rotation of the guide post 31, a coupler 36 is fixed on the upper portion of the guide post 31, and a motor 37 suitable for the rotation of the coupler 36 is connected on the upper surface of the coupler 36.

Wherein, the power supply can be motor 37, motor or revolving cylinder, and the size according to the structure of intelligent toy casing and mould is decided, and the power supply is not convenient for set up when the inside of upper die base, can install angle steering drive mechanism additional between the top of guide pillar 31 and the power supply, sets up the power supply in the outside of mould.

In an embodiment of the present invention, the lower portion of the guide pillar 31 is provided with a first thread 34, and the lower portion of the lower guide sleeve 33 is provided with a first screw groove 35 matching with the first thread 34.

It should be noted that, in order to fix the mold after closing the mold or automatically open the mold after injection molding, the first thread 34 is arranged at the lower part of the guide post 31, the first thread groove 35 matched with the first thread 34 is arranged at the lower part of the lower guide sleeve 33, when the guide post 31 is rotated clockwise, the first thread 34 of the guide post 31 and the first thread groove 35 of the lower guide sleeve 33 are screwed together to fix the cavity and the core 4, so that the wall thickness of the plastic part is not uniform or deformed due to position deviation, and the part is prevented from being damaged due to collision when the cavity and the core 4 are closed; when the guide post 31 is rotated counterclockwise, the first thread 34 of the guide post 31 is separated from the first thread groove 35 of the lower guide sleeve 33, so that the cavity and the core 4 are automatically separated.

In an embodiment of the present invention, in order to fix and guide the mold accurately, the deviation is not easy to occur, the guide fixing mechanism 3 is obliquely disposed inside the fixed mold plate 1 and the movable mold plate 2, and the inclination angle is between 5 degrees and 20 degrees.

In an embodiment of the present invention, as shown in fig. 4, the rotating component 57 includes a long transmission rod 571, the upper inner wall of the long transmission rod 571 is provided with a second spiral groove 572, a second stud 573 screwed in match with the second spiral groove 572 is provided inside the long transmission rod 571, and a second bevel gear 574 is fixed at an end of the long transmission rod 571 far away from the second stud 573.

In order to screw out the bolt first without demolding, and to accelerate demolding efficiency, the upper portion of the long transmission rod 571 is hollow, the inner wall of the upper portion of the long transmission rod 571 is provided with a second screw groove 572, a second screw bolt 573 which is matched with the second screw groove 572 and is reversely screwed is arranged inside the long transmission rod 571, the part of the second screw bolt 573, which is exposed out of the long transmission rod 571, is a plastic inner screw groove die part of the intelligent toy shell, and a second conical gear 574 is fixed at the bottom of the long transmission rod 571.

In this embodiment, when the guide post 31 is rotated counterclockwise, the first thread 34 of the guide post 31 is separated from the first thread groove 35 of the lower guide sleeve 33, so that the movable mold plate 2 is automatically separated from the fixed mold plate 1, the fixed mold plate 1 drives the strip-shaped post 51 to move upward, the rack 52 contacts with the first gear 55 and drives the first gear 55 to rotate, the first gear 55 drives the transmission shaft 54 to rotate in the fixed block 53, the transmission shaft 54 drives the first conical gear 56 to rotate, the first conical gear 56 drives the second conical gear 574 to rotate, the second conical gear 574 drives the long transmission rod 571 to rotate, so that the second stud 573 reversely rotates in the second thread groove 572 and is screwed into the long transmission rod 571, thereby completing the rotary demolding of the screw hole of the intelligent toy housing.

In one embodiment of the present invention, the first conical gear 56 is vertically rotatably connected to the second conical gear 574 in order to change the direction of rotation.

In an embodiment of the present invention, as shown in fig. 4 and 5, the second gear 58 is sleeved outside the long transmission rod 571, the side surface of the long transmission rod 571 is provided with a plurality of short transmission rods 59 rotatably connected with the fixed block 53, the short transmission rod 59 is close to one side bottom of the second conical gear 574 and is fixed with the second gear 58, a plurality of the second gears 58 are rotatably connected with each other.

It should be noted that, different from the above embodiment, when two or more screw holes are formed in the housing of the intelligent toy, the second gear 58 needs to be sleeved and fixed outside the long transmission rod 571, the short transmission rod 59 is arranged at a position corresponding to the screw hole, the short transmission rod 59 is rotatably connected with the fixed block 53, the second gear 58 is arranged at a position of the short transmission rod 59 close to the long transmission rod 571, and the two second gears 58 are rotatably connected with each other.

The inner structure of the short driving rod 59 is the same as that of the long driving rod 571, the inner wall of the upper part of the short driving rod 59 is provided with a second screw groove 572, the inner part of the short driving rod 59 is provided with a second stud 573 which is matched with the second screw groove 572 and is reversely screwed, and the part of the second stud 573, which is exposed out of the short driving rod 59, is a plastic inner screw groove mould part of the intelligent toy shell.

In an embodiment of the present invention, as shown in fig. 6, a plurality of water cooling pipes 10 having the same surface structure as the core 4 are provided inside the core 4, a flow divider 11 adapted to divide the flow of water is provided at a water inlet of the water cooling pipes 10, and a flow collector 12 adapted to merge the flow of water is provided at a water outlet of the water cooling pipes 10.

It should be noted that, in order to shorten the cooling time and to cool the plastic housing of the smart toy evenly, a plurality of water cooling pipes 10 having the same surface structure as the upper surface of the core 4 are provided inside the core 4, a flow divider 11 is provided inside the core 4 to reduce the number of water inlet pipes and supply water to the plurality of water cooling pipes 10, a flow collector 12 is provided at the end of the water cooling pipe 10 located inside the core 4 to reduce the number of water outlet pipes and ensure the water to circulate out of the core 4.

The utility model discloses an embodiment, movable mould board 2 is kept away from one side of core 4 is provided with release link 8, the outside cover of release link 8 is equipped with spring 9, be provided with fixed plate 6 below the release link, the higher authority of fixed plate 6 is fixed with a plurality of ejector pins 7 that are suitable for the jack-up drawing of patterns.

It should be noted that, for the convenience of product drawing of patterns, bottom at movable mould board 2 sets up fixed plate 6, when the die sinking, movable mould board 2 moves down, make the ejecting product of ejector pin 7 on the fixed plate 6 demold, for the convenience of automatic re-setting behind the 7 drawing of patterns of ejector pin, side at ejector pin 7 sets up release link 8, the bottom mounting of release link 8 is on fixed plate 6, the inside of movable mould board 2 is fixed in at the top of release link 8, the cover is equipped with spring 9 on release link 8, rely on spring 9's resilience force to strut fixed plate 6 and movable mould board 2, make ejector pin 7 reset, the product of being convenient for next time is pour.

In order to facilitate ejection of a molded product, a lower die holder is arranged below the fixing plate 6, and the ejection mechanism penetrates through the lower die holder and pulls the fixing plate 6 to move up and down; according to intelligent toy's shell structure, except that evenly being provided with a plurality of ejector pins 7 in the bottom of casing, be provided with oblique ejector pin 7 along the symmetry at the side of casing, when ejecting the drawing of patterns to the casing, prevent that the plastic casing from warping or damaging, the stress surface is even and appropriate increase contact surface, reduces the atress of moulding a casing, strives for good moulding a casing outward appearance and quality, reduction rejection rate.

Although the present disclosure has been described above, the scope of the present disclosure is not limited thereto. Various changes and modifications may be made by those skilled in the art without departing from the spirit and scope of the present disclosure, and these changes and modifications are intended to fall within the scope of the present disclosure.

Claims

1. A precision mold convenient for rotary ejection comprises a fixed mold plate (1) and a movable mold plate (2), and is characterized in that a mold core (4) is arranged in the middle of the movable mold plate (2) close to the fixed mold plate (1), a rotating mechanism (5) suitable for demolding a screw hole is arranged inside the mold core (4), the rotating mechanism (5) comprises a strip-shaped column (51) and a fixed block (53), and a rack (52) is arranged at the lower part of the strip-shaped column (51); bar post (51) with be provided with transmission shaft (54) between fixed block (53), transmission shaft (54) pass fixed block (53), and with fixed block (53) rotate to be connected, transmission shaft (54) are close to a pot head of bar post (51) is equipped with first gear (55), transmission shaft (54) are close to the one end of fixed block (53) is provided with first conical gear (56), fixed block (53) are close to one side rotation of fixed die plate (1) is connected with rotary part (57) that are suitable for twisting out the bolt.

2. The precision mold convenient for rotary ejection as claimed in claim 1, characterized in that the inner side surfaces of the fixed mold plate (1) and the movable mold plate (2) are provided with guiding and fixing mechanisms (3) suitable for the fixed mold plate (1) and the movable mold plate (2) to be clamped and fixed with each other.

3. The precision mold convenient for rotary ejection as claimed in claim 2, characterized in that the guide fixing mechanism (3) comprises a guide post (31), an upper guide sleeve (32) and a lower guide sleeve (33), the upper guide sleeve (32) is fixed on the inner side of the fixed mold plate (1), the lower guide sleeve (33) is fixed on the inner side of the movable mold plate (2), and the guide post (31) is rotationally connected with the upper guide sleeve (32) and the lower guide sleeve (33).

4. A precision mould facilitating rotary ejection according to claim 3, characterized in that the lower part of the guide post (31) is provided with a first thread (34), and the lower part of the lower guide sleeve (33) is provided with a first screw groove (35) matching with the first thread (34).

5. A precision mould facilitating rotary ejection according to claim 4, characterized in that the guiding and fixing mechanism (3) is arranged obliquely inside the fixed mould plate (1) and the movable mould plate (2).

6. The precision mold convenient for rotary ejection according to claim 1, wherein the rotating component (57) comprises a long driving rod (571), a second groove (572) is formed in the upper inner wall of the long driving rod (571), a second stud (573) which is screwed in match with the second groove (572) is formed in the long driving rod (571), and a second conical gear (574) is fixed at one end of the long driving rod (571) far away from the second stud (573).

7. A precision mold for facilitating rotational ejection as claimed in claim 6 wherein the first conical gear (56) is vertically rotatably connected to the second conical gear (574).

8. The precision mold convenient for rotary ejection according to claim 6, wherein a second gear (58) is sleeved outside the long driving rod (571), a plurality of short driving rods (59) rotatably connected with the fixed block (53) are arranged on the side surface of the long driving rod (571), the second gear (58) is fixed at the bottom of one side of the short driving rod (59) close to the second conical gear (574), and the second gears (58) are rotatably connected with each other.

9. The precision mold convenient for rotary ejection according to claim 1, characterized in that a plurality of water-cooling pipelines (10) with the same structure as the upper surface of the mold core (4) are arranged inside the mold core (4), a water inlet of each water-cooling pipeline (10) is provided with a flow divider (11) suitable for water flow division, and a water outlet of each water-cooling pipeline (10) is provided with a flow collector (12) suitable for water flow confluence.

10. The precision mold convenient for rotary ejection as claimed in claim 1, wherein a reset rod (8) is arranged on one side of the movable mold plate (2) far away from the mold core (4), a spring (9) is sleeved outside the reset rod (8), a fixing plate (6) is arranged below the reset rod, and a plurality of ejector rods (7) suitable for jacking and demolding are fixed on the fixing plate (6).