CN210552732U

CN210552732U - Injection mold capable of automatically cutting off pouring gate in mold

Info

Publication number: CN210552732U
Application number: CN201921290033.9U
Authority: CN
Inventors: 竺艳晨
Original assignee: Hengyisheng Mould Injection Huizhou Co ltd
Current assignee: Hengyisheng Mould Injection Huizhou Co ltd
Priority date: 2019-08-10
Filing date: 2019-08-10
Publication date: 2020-05-19
Anticipated expiration: 2029-08-10

Abstract

The utility model provides an automatic injection mold who cuts off runner in mould, including hydraulic telescoping rod, hydraulic telescoping rod establishes at bottom plate chamber middle part, the flat thimble push pedal of hydraulic telescoping rod top fixed connection, just flat thimble push pedal is in the bottom plate intracavity, be equipped with two flat thimbles, two on the flat thimble push pedal flat thimble is established in product both ends runner position, bottom plate chamber top is equipped with the bottom plate, the bottom plate middle part is equipped with ejecting post, ejecting capital end is equipped with first push pedal, be equipped with the second push pedal in the first push pedal, be equipped with two thimbles in the second push pedal, and flat thimble one side, two the thimble runs through the movable mould board to the product bottom, be equipped with the fixed die plate on the movable mould board, be equipped with die cavity and core between fixed die plate and the movable mould board. The utility model has the advantages of simple structure, high production efficiency and low cost.

Description

Injection mold capable of automatically cutting off pouring gate in mold

Technical Field

The utility model relates to a mold machine constructs, especially relates to an injection mold that can cut off runner automatically in the mould.

Background

In injection mold's mold design, the application of mouth or overlap joint runner is glued to the side is comparatively general, because side runner or overlap joint runner simple structure, easily processing, and hot melt adhesive mobility is good, and loss of pressure is little, so most plastic parts advance gluey mode and all adopt side runner or overlap joint runner to advance gluey. However, the side gate or the lap gate has a certain disadvantage, and the gate and the plastic part need to be cut and separated manually after the plastic part is formed, so that the production cost is high and the production efficiency is low. Therefore, there is a need to develop a mechanism capable of automatically cutting off the gate to overcome the drawbacks of the prior art.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome not enough among the prior art, provide a simple structure, ability automated production, production efficiency is high to effective reduce cost's an injection mold that can cut off the runner in the mould automatically.

The utility model provides a technical scheme is: an injection mold capable of automatically cutting off a sprue in a mold comprises a hydraulic telescopic rod, wherein the hydraulic telescopic rod is arranged in the middle of a bottom plate cavity, the top end of the hydraulic telescopic rod is fixedly connected with a flat thimble push plate, the flat thimble push plate is arranged in the bottom plate cavity, the flat thimble push plate is provided with two flat thimbles, the two flat thimbles consist of a base, a first-level flat thimble, a bolt, a clamp spring, a distance limiting block and a second-level flat thimble, one end of the base is fixedly connected with the flat thimble push plate, the other end of the base is connected with the first-level flat thimble, one end of the first-level flat thimble is provided with a first-level round hole, the position of the second-level flat thimble far away from a product sprue is provided with a second-level round hole, the bolt penetrates through the first-level round hole and the second-level round hole, the bolt, make only need remove the jump ring, pull out the bolt and just can part flat thimble of one-level and the flat thimble of second grade for flat thimble easy maintenance, two flat thimble is established in product both ends runner position, bottom plate cavity top is equipped with the bottom plate, the bottom plate middle part is equipped with ejecting post, ejecting capital end is equipped with first push pedal, be equipped with the second push pedal in the first push pedal, be equipped with two thimbles in the second push pedal, and be in flat thimble one side, two the thimble runs through movable mould board to the product bottom, be equipped with the fixed die plate on the movable mould board, be equipped with die cavity and core between fixed die plate and the movable mould board.

Furthermore, the length of the distance limiting block is longer than the diameter of the second-level flat ejector pin, when the distance limiting block touches the movable template, the distance limiting block cannot penetrate through the movable template due to the fact that the length of the distance limiting block is longer than the diameter of the second-level flat ejector pin, and therefore the distance limiting effect is achieved, the distance between the distance limiting block and the movable template is 5-30 mm when the mold is closed, namely the stroke distance of the flat ejector pin push plate is obtained, meanwhile, the stroke of the sprue cutter is achieved, and therefore cutting-off of a sprue is guaranteed.

Furthermore, a sprue knife is arranged at the top end of the second-stage flat thimble and is in a sawtooth shape, so that a sprue can be cut off well.

Furthermore, an oil drainage hole is formed in one side of the bottom end of the bottom plate cavity, so that oil stains leaked by the hydraulic telescopic rod can be drained.

The utility model discloses the beneficial effect who produces is: through the actuation of the hydraulic telescopic rod, the flat thimble push plate rises, and the flat thimble on the flat thimble push plate rises, so that the sprue is cut off, the subsequent procedure of manually cutting off the sprue is omitted, the production cost is reduced, and the production efficiency is effectively improved; the distance limiting block is arranged and movably connected with the plug pin through the clamp spring, and the plug pin is in through connection with the first-level flat thimble and the second-level flat thimble, so that the flat thimble can be well decomposed, and the damaged flat thimble can be maintained conveniently. The novel structure that has of this use, beneficial effect such as practicality is strong.

Drawings

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

FIG. 2 is a partial schematic view of the flat thimble of the present invention;

FIG. 3 is a schematic structural diagram of the distance limiting block of the present invention;

FIG. 4 is a partial schematic view of a first-level and a second-level flat thimble according to the present invention;

fig. 5 is a schematic view of the gate cutter of the present invention.

In the figure: 1. the hydraulic telescopic rod comprises a hydraulic telescopic rod, 2 parts of a bottom plate cavity, 3 parts of flat ejector pin push plates, 4 parts of flat ejector pins, 5 parts of a bottom plate, 6 parts of ejection columns, 7 parts of a first push plate, 8 parts of a second push plate, 9 parts of ejector pins, 10 parts of a movable template, 11 parts of a fixed template, 12 parts of a cavity, 13 parts of a mold core, 14 parts of a base, 15 parts of a first-stage flat ejector pin, 16 parts of a bolt, 17 parts of a clamp spring, 18 parts of a distance limiting block, 19 parts of a second-stage flat ejector pin, 20 parts of a first-stage round hole, 21 parts of a second-stage round hole.

Detailed Description

All of the features disclosed in this specification or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations where mutually exclusive features and/or steps are present. Any feature disclosed in this specification (including any accompanying claims, abstract and drawings), may be replaced by alternative features serving equivalent or similar purposes, unless expressly stated otherwise. That is, unless expressly stated otherwise, each feature is only an example of a generic series of equivalent or similar features.

As shown in fig. 1-5, an injection mold capable of automatically cutting off a gate in a mold comprises a hydraulic telescopic rod 1, wherein the hydraulic telescopic rod 1 is arranged in the middle of a bottom plate cavity 2, the top end of the hydraulic telescopic rod 1 is fixedly connected with a flat thimble push plate 3, the flat thimble push plate 3 is arranged in the bottom plate cavity 2, two flat thimbles 4 are arranged on the flat thimble push plate 3, the two flat thimbles 4 are arranged at gate positions at two ends of a product, each flat thimble 4 comprises a base 14, a first-level flat thimble 15, a plug 16, a clamp spring 17, a distance limiting block 18 and a second-level flat thimble 19, one end of the base 14 is fixedly connected with the flat thimble push plate 3, the other end of the base 14 is connected with the first-level flat thimble 15, one end of the first-level flat thimble 15 is provided with a first-level round hole 20, the second-level flat thimble 19 is provided with a, the sprue cutter 22 is in a sawtooth shape and can effectively cut off a sprue, the bolt 16 penetrates through a first-stage round hole 20 and a second-stage round hole 21, the bolt 16 is movably connected with the distance limiting block 18 through the clamp spring 17, the clamp springs 17 are arranged at two ends of the distance limiting block 18, the length of the distance limiting block 18 is longer than the diameter of the second-stage flat thimble 19, the distance limiting block 18 cannot penetrate through the movable template due to the fact that the length of the distance limiting block 18 is longer than the diameter of the second-stage flat thimble 19, and therefore the distance limiting function is achieved, the distance limiting block 18 is 5-30 mm away from the movable template 10 when the mold is closed, namely the stroke distance of the flat thimble push plate 3, meanwhile, the stroke distance of a cut-off product sprue of the flat thimble 4 is guaranteed, the oil drainage hole 23 is arranged on one side of the bottom end of the bottom plate cavity 2, oil stains leaked from the hydraulic telescopic rod 1 can be drained, and the bottom plate 5 is, the middle of the bottom plate 5 is provided with an ejection column 6, the top end of the ejection column 6 is provided with a first push plate 7, the first push plate 7 is provided with a second push plate 8, the second push plate 8 is provided with two ejector pins 9, one side of the flat ejector pin 4 is provided with two ejector pins 9 penetrating through a movable template 10 to the bottom end of a product, the movable template 10 is provided with a fixed template 11, and a cavity 12 and a mold core 13 are arranged between the fixed template and the movable template.

The utility model discloses a theory of operation is: at the later stage of pressure maintaining, the hydraulic telescopic rod 1 is actuated, the flat needle top plate 3 moves upwards, the flat needle 4 arranged on the flat needle top plate 3 moves upwards, the distance limiting block 18 has a 5-30 mm distance from the movable template 10 when the mold is closed, namely, the distance limiting block is a stroke for the flat thimble 4 to move upwards, when the flat thimble 4 moves upwards to the distance limiting block 18 and touches the movable template 10, the flat thimble 4 just seals the pouring gate, the automatic pouring gate is cast off, the mold opening ejection column 6 is actuated afterwards, the first push plate 7 and the second push plate 8 are driven to move upwards, the thimble 9 on the second push plate 8 is actuated, and therefore the ejection of a product is completed.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that are not thought of through the creative work should be covered within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope defined by the claims.

Claims

1. The utility model provides a can be in injection mold of automatic cutout runner of mould, includes hydraulic telescoping rod (1), its characterized in that: the hydraulic telescopic rod (1) is arranged in the middle of the bottom plate cavity (2), the flat thimble push plate (3) is fixedly connected to the top end of the hydraulic telescopic rod (1), the flat thimble push plate (3) is arranged in the bottom plate cavity (2), two flat thimbles (4) are arranged on the flat thimble push plate (3), each flat thimble (4) consists of a base (14), a first-level flat thimble (15), a bolt (16), a clamp spring (17), a distance limiting block (18) and a second-level flat thimble (19), one end of the base (14) is fixedly connected to the flat thimble push plate (3), the other end of the base (14) is connected with the first-level flat thimble (15), one end of the first-level flat thimble (15) is provided with a first-level round hole (20), the second-level flat thimble (19) is far away from the product gate and provided with a second-level round hole (21), the bolt (16) runs through the, bolt (16) are through jump ring (17) swing joint distance limiting block (18), establish at distance limiting block (18) both ends jump ring (17), two flat thimble (4) are established in product both ends runner position, bottom plate chamber (2) top is equipped with bottom plate (5), bottom plate (5) middle part is equipped with ejection post (6), ejection post (6) top is equipped with first push pedal (7), be equipped with second push pedal (8) on first push pedal (7), be equipped with two thimble (9) on second push pedal (8), and flat thimble (4) one side, two movable mould board (10) to product bottom are run through to thimble (9), be equipped with fixed die plate (11) on movable mould board (10), be equipped with die cavity (12) and core (13) between fixed die plate and the movable mould board.

2. An injection mold for automatically cutting off a gate in a mold according to claim 1, wherein: the length of the distance limiting block (18) is longer than the diameter of the secondary flat thimble (19), and the distance between the distance limiting block (18) and the movable template (10) is 5-30 mm when the template is closed.

3. An injection mold for automatically cutting off a gate in a mold according to claim 1, wherein: and a sprue knife (22) is arranged at the top end of the secondary flat thimble (19), and the sprue knife (22) is in a sawtooth shape.

4. An injection mold for automatically cutting off a gate in a mold according to claim 1, wherein: and an oil drainage hole (23) is formed in one side of the bottom end of the bottom plate cavity (2).