CN213533631U

CN213533631U - Automatic ejection device of injection mould

Info

Publication number: CN213533631U
Application number: CN202021720836.6U
Authority: CN
Inventors: 石小华
Original assignee: Wuhan Aitemake Precision Molding Co ltd
Current assignee: Wuhan Aitemake Precision Molding Co ltd
Priority date: 2020-08-17
Filing date: 2020-08-17
Publication date: 2021-06-25
Anticipated expiration: 2030-08-17

Abstract

The utility model relates to an injection mold technical field discloses an automatic ejecting device of injection mold, including the cover half, be equipped with ejecting device in the cover half, the last secondary ejecting device that is equipped with of ejecting device, the cover half top is equipped with mould benevolence, ejecting device is equipped with a set of cylinder, the even distribution of cylinder is in the roof below, the atress is even when making the product ejecting, avoid because of the atress is inhomogeneous, the defect appears in the product, secondary ejecting device, after once ejecting, the finished product is still in the die cavity, when unable automatic droing, secondary ejecting device utilizes the motor to drive the worm and rotates, the worm drives the turbine and rotates, the turbine drives the lead screw and rotates, the slider bottom rotates along with the lead screw, and follow the lead screw lapse, it continues to rise to drive the second thimble, it is ejecting completely to need not artifical. The utility model is simple in operation, the suitability is strong, suitable popularization.

Description

Automatic ejection device of injection mould

Technical Field

The utility model relates to an injection mold technical field, specific is an automatic ejecting device of injection mould.

Background

Injection molding is a method for producing and molding industrial products. The products are generally produced by rubber injection molding and plastic injection molding. The injection molding can also be divided into an injection molding die pressing method and a die casting method, the injection molding is main molding equipment for molding thermoplastic plastics or thermosetting materials into plastic products with various shapes by utilizing plastics, and the injection molded products need to be ejected out of a mold by an ejection device and then automatically fall off. The existing ejection device adopts a straight ejection mode, when a finished product is special in shape and still in a mold cavity after being ejected once and cannot fall off automatically, the product is usually manually demolded, and thus, the product defect is easily caused.

SUMMERY OF THE UTILITY MODEL

For solving the not enough of mentioning among the above-mentioned background art, the utility model aims to provide an automatic ejecting device of injection mould, including the cover half, be equipped with ejecting device in the cover half, the last secondary ejecting device that is equipped with of ejecting device, the cover half top is equipped with mould benevolence, ejecting device is equipped with a set of cylinder, the even distribution of cylinder is in the roof below, the atress is even when making the product ejecting, avoid because of the atress is inhomogeneous, the product defect appears, secondary ejecting device, once ejecting back, the finished product is still in the mould cavity, when unable automatic droing, secondary ejecting device utilizes the motor to drive the worm and rotates, the worm drives the turbine and rotates, the turbine drives the lead screw and rotates, the slider bottom rotates along with the lead screw, and upwards slide along the lead screw, it continues to rise to drive the second thimble, it is ejecting completely.

The purpose of the utility model can be realized by the following technical scheme:

an automatic ejection device of an injection mold comprises a fixed mold, wherein an ejection device is arranged in the fixed mold, a secondary ejection device is arranged on the ejection device, and a mold core is arranged at the top of the fixed mold;

the fixed die comprises a bottom plate, side plates are arranged on two sides of the bottom plate, counter bores are formed in one side of the die core, a group of through holes distributed in an array mode are formed in the lateral sides of the counter bores, and the counter bores and the through holes penetrate through the top of the die core and the top of the fixed die simultaneously;

the ejection device comprises a top plate, the top plate is connected with a side plate in a sliding mode, a group of cylinders are fixed below the top plate and are respectively distributed below the symmetrical four corners and the center of the top plate, a group of first ejector pins distributed in an array mode are fixed above the top plate, two shaft seats distributed in an array mode are arranged on the side of each first ejector pin, fixing plates are arranged on the side of the shaft seats, and the shaft seats and the fixing plates are fixed on the top plate.

Furthermore, the secondary ejection device comprises a motor, the motor is fixed on the fixing plate, a worm is fixed at the output end of the motor, the worm is arranged between the shaft seats and is rotatably connected with the shaft seats, the worm is meshed with a worm wheel, the worm wheel is rotatably connected with the bottom plate, a lead screw is fixed at the center above the worm wheel, a sliding block is arranged on the lead screw, and a second ejector pin is arranged at the top of the sliding block.

Furthermore, a large hole and a small hole are arranged below the counter bore, the diameter of the large hole is equal to that of the sliding block, the diameter of the small hole is equal to that of the second thimble, and the diameter of the first thimble is equal to that of the through hole.

Furthermore, the bottom of the sliding block is arranged on the screw rod in a sliding mode, and one end of the screw rod penetrates through the bottom of the sliding block.

The utility model has the advantages that:

1. the utility model discloses an ejecting device is equipped with a set of cylinder, and the even distribution of cylinder makes the product atress even when ejecting in the roof below, avoids because of the atress is inhomogeneous, and the defect appears in the product.

2. The utility model discloses be equipped with secondary ejecting device, once ejecting back, the finished product is still in the die cavity, and when unable automatic droing, secondary ejecting device utilizes the motor to drive the worm and rotates, and the worm drives the turbine and rotates, and the turbine drives the lead screw and rotates, and the slider bottom rotates along with the lead screw, and follows the lead screw and upwards slide, drives the second thimble and continues to rise, ejecting completely with the product, need not artifical drawing of patterns, causes the product defect.

Drawings

The present invention will be further described with reference to the accompanying drawings.

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the fixed mold structure of the present invention;

fig. 3 is a schematic structural view of the ejection device of the present invention;

fig. 4 is a schematic structural view of the secondary ejection device of the present invention;

fig. 5 is a front view of the present invention;

fig. 6 is a cross-sectional view taken along line a-a of fig. 5 in accordance with the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "open hole", "upper", "lower", "thickness", "top", "middle", "length", "inner", "around", and the like, indicate positional or positional relationships, are merely for convenience in describing the present invention and to simplify the description, and do not indicate or imply that the components or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

As shown in fig. 1, the automatic ejection device for the injection mold comprises a fixed mold 1, wherein an ejection device 2 is arranged in the fixed mold 1, a secondary ejection device 3 is arranged on the ejection device 2, and a mold core 4 is arranged at the top of the fixed mold 1.

As shown in fig. 2, the fixed mold 1 is provided with a bottom plate 11, two sides of the bottom plate 11 are provided with side plates 12, one side of the mold core 4 is provided with a counter bore 41, the side of the counter bore 41 is provided with a group of through holes 42 distributed in an array, and the counter bore 41 and the through holes 42 penetrate through the top of the mold core 4 and the top of the fixed mold 1 simultaneously.

As shown in fig. 3, the ejection device 2 includes a top plate 21, the top plate 21 is slidably connected to the side plate 12, a set of cylinders 22 is fixed below the top plate 21, the cylinders 22 are respectively distributed below the symmetrical four corners and the center of the top plate 21, so that the top plate 21 is uniformly stressed, the product is uniformly stressed when being ejected, the integrity of the product is ensured, a set of first ejector pins 23 distributed in an array is fixed above the top plate 21, the diameter of the first ejector pins 23 is equal to the diameter of the through holes 42, two shaft seats 24 distributed in an array are arranged on the side of the first ejector pins 23, a fixing plate 25 is arranged on the side of the shaft seats 24, and the shaft seats 24 and the fixing.

As shown in fig. 4, the secondary ejection device 3 includes a motor 31, the motor 31 is fixed on the fixing plate 25, a worm 32 is fixed at an output end of the motor 31, the worm 32 is disposed between the shaft seats 24, the worm 32 is rotatably connected with the shaft seats 24, the worm 32 is meshed with a worm wheel 33, the worm wheel is rotatably connected with the bottom plate 11, a screw rod 35 is fixed at a center above the worm wheel 33, a sliding block 36 is disposed on the screw rod 35, a second thimble 37 is disposed at a top of the sliding block 36, the motor 31 rotates to drive the worm 32 to rotate, the worm 32 drives the worm wheel 33 to rotate, and the worm wheel.

As shown in fig. 5 and 6, a large hole 411 and a small hole 412 are arranged below the counter bore 41, the diameter of the large hole 411 is equal to that of the sliding block 36, the diameter of the small hole 412 is equal to that of the second thimble 37, the bottom of the sliding block 36 is slidably arranged on the screw rod 35, one end of the screw rod 35 penetrates through the bottom of the sliding block 36, and the bottom of the sliding block 36 slides upwards along the screw rod 35 along with the rotation of the screw rod 35.

The working principle is as follows: after a product on the mold core 4 is cooled and molded, the cylinder 22 drives the top plate to ascend, and drives the first ejector pin 23 and the second ejector pin 37 above the cylinder 22 to ascend to eject the product, if the product ejection stroke is large, or the product cannot automatically fall off after being ejected once, the motor 31 is controlled to rotate, the motor 31 rotates to drive the worm 32 to rotate, the worm 32 drives the worm wheel 33 to rotate, the worm wheel drives the screw rod 35 to rotate, the bottom of the sliding block 36 rotates along with the screw rod 35 and slides upwards along the screw rod 35 to drive the second ejector pin 37 to continuously ascend, and the product is completely ejected.

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

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention.

Claims

1. An automatic ejection device of an injection mold comprises a fixed mold (1), and is characterized in that an ejection device (2) is arranged in the fixed mold (1), a secondary ejection device (3) is arranged on the ejection device (2), and a mold core (4) is arranged at the top of the fixed mold (1);

the fixed die (1) comprises a bottom plate (11), side plates (12) are arranged on two sides of the bottom plate (11), a counter bore (41) is formed in one side of the die core (4), a group of through holes (42) distributed in an array mode are formed in the side of the counter bore (41), and the counter bore (41) and the through holes (42) penetrate through the top of the die core (4) and the top of the fixed die (1) simultaneously;

ejecting device (2) include roof (21), roof (21) and curb plate (12) sliding connection, roof (21) below is fixed with a set of cylinder (22), cylinder (22) distribute respectively in roof (21) symmetry four corners position and central below, roof (21) top is fixed with a set of first thimble (23) of array distribution, first thimble (23) side is equipped with two axle beds (24) of array distribution, axle bed (24) side is equipped with fixed plate (25), axle bed (24) and fixed plate (25) are all fixed on roof (21).

2. The automatic ejection device of the injection mold according to claim 1, wherein the secondary ejection device (3) comprises a motor (31), the motor (31) is fixed on the fixing plate (25), a worm (32) is fixed at an output end of the motor (31), the worm (32) is arranged between the shaft seats (24), the worm (32) is rotatably connected with the shaft seats (24), the worm (32) is meshed with a worm wheel (33), the worm wheel is rotatably connected with the bottom plate (11), a screw rod (35) is fixed at the center above the worm wheel (33), a sliding block (36) is arranged on the screw rod (35), and a second ejector pin (37) is arranged at the top of the sliding block (36).

3. The automatic ejection device of the injection mold according to claim 1, characterized in that a large hole (411) and a small hole (412) are arranged below the counter bore (41), the diameter of the large hole (411) is equal to that of the sliding block (36), the diameter of the small hole (412) is equal to that of the second ejector pin (37), and the diameter of the first ejector pin (23) is equal to that of the through hole (42).

4. The automatic ejection device for the injection mold according to claim 2, wherein the bottom of the slide block (36) is slidably disposed on the screw (35), and one end of the screw (35) penetrates through the bottom of the slide block (36).