CN212736912U

CN212736912U - Efficient plastic injection mold

Info

Publication number: CN212736912U
Application number: CN202020337478.4U
Authority: CN
Inventors: 陈清培
Original assignee: Dongguan Zealwin Electronic Co ltd
Current assignee: Dongguan Zealwin Electronic Co ltd
Priority date: 2020-03-17
Filing date: 2020-03-17
Publication date: 2021-03-19
Anticipated expiration: 2030-03-17

Abstract

The utility model discloses an efficient plastic injection mold, which comprises a bottom case, a fixed mold base, a protective box and a movable mold base, and has simple and reasonable structural design, when in work, a motor rotates positively to drive a driving belt pulley, a driven belt pulley and a lead screw to rotate, so that the movable mold base drives a movable mold to move downwards, a guide rod contacts with a buffer block before the buffer block, the acting force during mold closing is reduced, and the accuracy of the mold closing position is ensured; the first spring drives the first ejector rod of the connecting plate to move upwards, the external raw material supply device performs injection molding through the sprue, the liquid pump cools an injection molding piece through a water inlet pipeline, and the injection molding piece flows back into the water storage tank after being radiated by the radiating fins, so that water resources are saved; the number of the mold cores and the number of the mold cavities are three, so that the working efficiency of the device is improved conveniently; after injection moulding, the motor reverses to make the movable mould move upwards, carries out the die sinking, and the second ejector pin makes connecting plate, first ejector pin remove downwards, is convenient for realize automatic discharging.

Description

Efficient plastic injection mold

Technical Field

The utility model relates to a plastic technical field specifically is an efficient plastic injection mold.

Background

The plastic is mainly composed of carbon, oxygen, hydrogen, nitrogen and other organic or inorganic elements, the finished product is solid and is a molten liquid in the manufacturing process, so that the plastic can be mechanically heated to melt, pressurized to flow and cooled to solidify, and various shapes are formed; an injection molding machine (an injection machine or an injection molding machine for short) is a main molding device for making thermoplastic plastics or thermosetting materials into plastic products with various shapes by using a plastic molding die.

The existing high-efficiency plastic injection mold has poor heat dissipation effect when in use, and influences the demolding efficiency and precision; the processing efficiency is low; after injection molding, automatic discharging is inconvenient. Therefore, those skilled in the art have provided an efficient plastic injection mold to solve the above problems in the background art.

Disclosure of Invention

The utility model aims at providing an efficient plastic injection mold to solve the problem of proposing among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

a high-efficiency plastic injection mold comprises a bottom box, a fixed mold seat, a protective box and a movable mold seat, wherein the fixed mold seat is arranged at the center of the upper end of the bottom box, and three mold cores are linearly distributed at the upper end of the fixed mold seat; four corners of the upper end of the bottom box are provided with support rods, and the upper ends of the support rods are provided with top plates; a protective box is arranged at the center of the upper end of the top plate, a cavity is formed in the protective box, a motor is arranged at the center of the upper end in the cavity, and a driving belt wheel is arranged on an output shaft of the motor; the driving belt wheel is provided with a conveying belt, the left end and the right end of the conveying belt are provided with driven belt wheels, and the lower ends of the driven belt wheels are provided with screw rods; the screw rod is provided with a movable die holder, a movable die is arranged at the center of the lower end of the movable die holder, and three cavities are linearly distributed at the lower end of the movable die; a mounting groove is formed in the movable die, a plurality of first springs are linearly distributed at the upper end in the mounting groove, a connecting plate is arranged at the lower end of each first spring, and a plurality of first ejector rods are linearly distributed at the lower end of each connecting plate; circular grooves are formed in the left side and the right side of the upper end in the bottom box, a second spring is arranged in the center of the lower end in each circular groove, and a buffer block is arranged at the upper end of each second spring; a fixed groove is formed in the center of the inner part of the fixed die base, a water storage tank is arranged in the center of the lower end of the fixed groove, an infusion pump is arranged at the upper end of the water storage tank, a water inlet pipeline is arranged at the upper end of the infusion pump, and the other end of the water inlet pipeline is fixedly connected with a water inlet of the movable die; the fan is arranged on the right side of the lower end in the fixing groove, and filter screens are arranged on the left side and the right side of the lower end in the fixing groove.

As a further aspect of the present invention: a water outlet pipeline is arranged on the right side of the rear end of the movable die and is fixedly connected with the water storage tank; and the lower end of the water outlet pipeline is provided with a radiating fin.

As a further aspect of the present invention: the left side and the right side of the lower end of the top plate are both provided with second ejector rods; and through grooves are formed in the movable die holder and the movable die and matched with the second ejector rod.

As a further aspect of the present invention: the cavity and the core are on the same axis; cushion blocks are arranged at four corners of the lower end of the bottom box; and a pouring gate is arranged at the front end of the fixed die holder and is connected with an external raw material supply device through a pipeline.

As a further aspect of the present invention: the left side and the right side of the lower end of the movable mold base are both provided with guide rods, the lower ends of the guide rods are provided with fixed blocks, and the fixed blocks are matched with the circular grooves in the bottom box.

As a further aspect of the present invention: the motor and the liquid pump are electrically connected with an external power supply through leads.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses the during operation, motor corotation drives driving pulley, driven pulleys, lead screw and rotates, makes the movable mould base drive the movable mould and moves down, and the guide arm contacts prior to the buffer block, effort when reducing the compound die, and the accuracy of assurance compound die position.

2. The utility model discloses the during operation, the first ejector pin rebound of first spring drive connecting plate, outside raw materials feeding device moulds plastics through the runner, and the drawing liquid pump cools off the injection molding through the inlet channel, flows back in the storage water tank, the water economy resource of being convenient for after the radiating fin heat dissipation.

3. When the utility model works, three cores and three cavities are arranged, which is convenient for improving the working efficiency of the device; after injection moulding, the motor reversal makes the movable mould rebound, carries out the die sinking, and the second ejector pin makes connecting plate, first ejector pin rebound, is convenient for realize automatic discharging, convenient to use.

Drawings

Fig. 1 is a schematic structural diagram of an efficient plastic injection mold.

FIG. 2 is a schematic structural diagram of a bottom case of an efficient plastic injection mold.

In the figure: the device comprises a bottom box 1, a fixed die base 2, a mold core 3, a top plate 4, a protective box 5, a motor 6, a driving belt wheel 7, a driven belt wheel 8, a screw rod 9, a movable die base 10, a guide rod 11, a movable die 12, a first spring 13, a first ejector rod 14, a water inlet pipeline 15, a water outlet pipeline 16, a second ejector rod 17, a second spring 18, a water storage tank 19, a liquid pump 20, a radiating fin 21 and a fan 22.

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 in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-2, in an embodiment of the present invention, an efficient plastic injection mold includes a bottom case 1, a stationary mold base 2, a protective case 5, and a movable mold base 10, wherein the stationary mold base 2 is disposed at a center of an upper end of the bottom case 1, and three cores 3 are linearly distributed at an upper end of the stationary mold base 2; four corners of the upper end of the bottom box 1 are provided with support rods, and the upper ends of the support rods are provided with top plates 4; a protective box 5 is arranged at the center of the upper end of the top plate 4, a cavity is formed in the protective box 5, a motor 6 is arranged at the center of the upper end in the cavity, and a driving belt wheel 7 is arranged on an output shaft of the motor 6; a transmission belt is arranged on the driving belt wheel 7, driven belt wheels 8 are arranged at the left end and the right end of the transmission belt, and a screw rod 9 is arranged at the lower end of each driven belt wheel 8; a movable die holder 10 is arranged on the screw rod 9, a movable die 12 is arranged at the center of the lower end of the movable die holder 10, and three cavities are linearly distributed at the lower end of the movable die 12; a mounting groove is formed in the movable die 12, a plurality of first springs 13 are linearly distributed at the upper end in the mounting groove, a connecting plate is arranged at the lower end of each first spring 13, and a plurality of first ejector rods 14 are linearly distributed at the lower end of each connecting plate; circular grooves are formed in the left side and the right side of the upper end in the bottom box 1, a second spring 18 is arranged in the center of the lower end in each circular groove, and a buffer block is arranged at the upper end of each second spring 18; a fixed groove is formed in the center of the inner part of the fixed die holder 2, a water storage tank 19 is arranged in the center of the lower end of the fixed groove, an infusion pump 20 is arranged at the upper end of the water storage tank 19, a water inlet pipeline 15 is arranged at the upper end of the infusion pump 20, and the other end of the water inlet pipeline 15 is fixedly connected with a water inlet of the movable die 12; the fan 22 is arranged on the right side of the lower end in the fixing groove, and filter screens are arranged on the left side and the right side of the lower end in the fixing groove.

A water outlet pipeline 16 is arranged on the right side of the rear end of the movable mold 12, and the water outlet pipeline 16 is fixedly connected with the water storage tank 19; the lower end of the water outlet pipe 16 is provided with a radiating fin 21.

The left side and the right side of the lower end of the top plate 4 are both provided with a second ejector rod 17; and through grooves are formed in the movable die holder 10 and the movable die 12, and the through grooves are matched with the second ejector rods 17.

The cavity and the core 3 are on the same axis; cushion blocks are arranged at four corners of the lower end of the bottom box 1; and a pouring gate is arranged at the front end of the fixed die holder 2 and is connected with an external raw material supply device through a pipeline.

Guide rods 11 are arranged on the left side and the right side of the lower end of the movable die holder 10, fixed blocks are arranged at the lower ends of the guide rods 11, and the fixed blocks are matched with the circular grooves in the bottom box 1.

The motor 6 and the liquid pump 20 are electrically connected with an external power supply through leads.

The utility model discloses a theory of operation is:

the utility model relates to an efficient plastic injection mold, during operation, a motor 6 rotates positively to drive a driving belt wheel 7, a driven belt wheel 8 and a lead screw 9 to rotate, a movable mold base 10 drives a movable mold 12 to move downwards, a guide rod 11 contacts with a buffer block in advance, the acting force during mold closing is reduced, and the accuracy of the mold closing position is ensured; the first spring 13 drives the first ejector rod 14 of the connecting plate to move upwards, the external raw material supply device performs injection molding through a pouring gate, the liquid pump 20 cools an injection molded part through the water inlet pipeline 15, and the injection molded part flows back into the water storage tank 19 after being radiated by the radiating fins 21, so that water resources are saved; the three mold cores 3 and the three mold cavities are arranged, so that the working efficiency of the device is improved conveniently; after injection molding, the motor 6 rotates reversely to enable the movable mold 12 to move upwards to open the mold, and the second ejector rod 17 enables the connecting plate and the first ejector rod 14 to move downwards, so that automatic discharging and use are facilitated.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A high-efficiency plastic injection mold comprises a bottom case (1), a fixed mold base (2), a protective case (5) and a movable mold base (10), and is characterized in that the fixed mold base (2) is arranged at the center of the upper end of the bottom case (1), and three mold cores (3) are linearly distributed at the upper end of the fixed mold base (2); four corners of the upper end of the bottom box (1) are provided with support rods, and the upper ends of the support rods are provided with top plates (4); a protective box (5) is arranged at the center of the upper end of the top plate (4), a cavity is formed in the protective box (5), a motor (6) is arranged at the center of the upper end in the cavity, and a driving belt wheel (7) is arranged on an output shaft of the motor (6); a transmission belt is arranged on the driving belt wheel (7), driven belt wheels (8) are arranged at the left end and the right end of the transmission belt, and a screw rod (9) is arranged at the lower end of each driven belt wheel (8); a movable die holder (10) is arranged on the screw rod (9), a movable die (12) is arranged at the center of the lower end of the movable die holder (10), and three cavities are linearly distributed at the lower end of the movable die (12); a mounting groove is formed in the movable die (12), a plurality of first springs (13) are linearly distributed at the upper end in the mounting groove, a connecting plate is arranged at the lower end of each first spring (13), and a plurality of first ejector rods (14) are linearly distributed at the lower end of each connecting plate; circular grooves are formed in the left side and the right side of the upper end in the bottom box (1), a second spring (18) is arranged in the center of the lower end in each circular groove, and a buffer block is arranged at the upper end of each second spring (18); a fixed groove is formed in the center of the inner part of the fixed die holder (2), a water storage tank (19) is arranged in the center of the lower end of the fixed groove, an infusion pump (20) is arranged at the upper end of the water storage tank (19), a water inlet pipeline (15) is arranged at the upper end of the infusion pump (20), and the other end of the water inlet pipeline (15) is fixedly connected with a water inlet of the movable die (12); the fan (22) is arranged on the right side of the lower end in the fixing groove, and filter screens are arranged on the left side and the right side of the lower end in the fixing groove.

2. The efficient plastic injection mold according to claim 1, wherein a water outlet pipe (16) is arranged on the right side of the rear end of the movable mold (12), and the water outlet pipe (16) is fixedly connected with the water storage tank (19); and the lower end of the water outlet pipeline (16) is provided with radiating fins (21).

3. The efficient plastic injection mold according to claim 1, wherein the top plate (4) is provided with second ejector rods (17) on the left and right sides of the lower end; and through grooves are formed in the movable die holder (10) and the movable die (12), and the through grooves are matched with the second ejector rods (17).

4. A highly efficient plastic injection mould according to claim 1, characterized in that the cavity is on the same axis as the core (3); cushion blocks are arranged at four corners of the lower end of the bottom box (1); and a pouring gate is arranged at the front end of the fixed die holder (2) and is connected with an external raw material supply device through a pipeline.

5. The plastic injection mold with high efficiency as claimed in claim 1, wherein the lower end of the movable mold base (10) is provided with guide rods (11) on the left and right sides, the lower end of the guide rod (11) is provided with a fixed block, and the fixed block is matched with the circular groove in the bottom case (1).

6. The plastic injection mold with high efficiency as claimed in claim 1, wherein the motor (6) and the liquid pump (20) are electrically connected with an external power source through wires.