CN220129401U

CN220129401U - High-quality injection molding machine with bubble removing mechanism

Info

Publication number: CN220129401U
Application number: CN202321665759.2U
Authority: CN
Inventors: 钟思榕; 赖春新
Original assignee: Shanghang Jianrun Electronic Technology Co ltd
Current assignee: Shanghang Jianrun Electronic Technology Co ltd
Priority date: 2023-06-28
Filing date: 2023-06-28
Publication date: 2023-12-05
Anticipated expiration: 2033-06-28

Abstract

The utility model discloses a high-quality injection molding machine with a bubble removing mechanism, which belongs to the technical field of injection molding machines and comprises: the device comprises a disc, a connecting rod, a round wheel, an arc-shaped plate, a shell, a heating cylinder and a screw rod; when the arc plate is horizontal, the raw materials in the material box are transported to the upper part of the shell through the material conveying pipe and temporarily stay above the shell, and when the arc plate is gradually vertical, the stay raw materials gradually fall into the heating cylinder through the gap, so that the newly added raw materials smoothly fall into the molten raw materials through the gap; compared with the existing injection molding machine, the utility model reduces the falling speed of the raw materials, reduces the occurrence of the condition that the added raw materials impact the liquid level in the heating cylinder to oscillate to generate bubbles, thereby reducing the consequence that the bubbles are pushed into the die plate cavity by the screw rod, reducing the occurrence of flaws of the molded product and further improving the quality of the injection molded product.

Description

High-quality injection molding machine with bubble removing mechanism

Technical Field

The utility model relates to the technical field of injection molding machines, in particular to a high-quality injection molding machine with a bubble removing mechanism.

Background

The injection molding machine is molding equipment for manufacturing plastic products with various shapes from thermoplastic plastics or thermosetting plastics by utilizing a plastic molding die, and is roughly divided into vertical and horizontal injection molding machines, but the injection molding machines face small and precise injection molding products such as connectors, plug connectors or wire plugs, and the like, so that the vertical injection molding machine is more suitable, occupies small space and is convenient to transport;

when the injection molding machine works, firstly, raw materials in a material barrel are conveyed into a heating cylinder, a heating ring at the outer side of the heating cylinder and a screw rod at the inner side of the heating cylinder are stirred, so that the raw materials are molten, the screw rod capable of advancing and retreating conveys the molten raw materials to the nozzle side at the front end of a screw rod, the molten raw materials are injected into a cavity of a mold device through an injection molding nozzle, and after the molten raw materials are cooled and solidified, the mold is opened, so that an injection molding product can be obtained;

in the current injection molding process, raw materials in the material bucket continuously adds in the heating jar, the raw materials will move down to in the heating jar along the conveying pipeline, but under the effect of gravity and conveying pipeline length, the speed that the raw materials fell can be accelerated, until the raw materials collides with the raw materials of melting form, the impact force can break the liquid level balance of melting form raw materials, the condition that the liquid level of melting form raw materials appears the vibration, and raw materials and melting form raw materials handing-over department produces the bubble because of the vibration, the bubble can get into in the die cavity along with the propulsion of hob, thereby the condition that appears the flaw in the fashioned product, and then influence the quality of injection molding product.

Disclosure of Invention

In order to overcome the defects of the prior art, the technical problem to be solved by the utility model is to provide a high-quality injection molding machine with a bubble removing mechanism;

to achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides a high-quality injection molding machine with a bubble removing mechanism, which comprises a frame, a material box, a material conveying pipe, a heating cylinder, a heating ring, a screw rod, a nozzle and a mold plate, wherein a buffer mechanism is arranged at the tail end of the material conveying pipe and in the heating cylinder, and the buffer mechanism comprises:

the shell is provided with a semi-closed space at the vertical central shaft of the shell, the top and the bottom of the semi-closed space are both open ends, the upper surface of the shell is fixedly connected with a support tube, and one end of the support tube, which is far away from the shell, is fixedly connected with the inner wall of the top of the heating cylinder;

the bottom surface of the disc is rotationally connected with the bottom surface of the semi-closed space, the inner side of the disc is fixedly connected with the surface of the screw rod, and the top surface of the disc is provided with threads;

the connecting rod is rotationally connected in the shell, one end of the connecting rod is fixedly connected with a round wheel, the round wheel is positioned on the top surface of the disc, threads are arranged on the outer side surface of the round wheel, and the other end of the connecting rod is fixedly connected with the arc-shaped rod.

The preferable technical scheme of the utility model is that the upper surface of the shell is inclined downwards towards the surrounding direction, and the edge part of the upper surface of the shell is flush with the surface of the arc-shaped plate.

The preferable technical scheme of the utility model is that a sealing ring is fixedly connected to the inner side of the opening end at the bottom of the shell.

The preferable technical scheme of the utility model is that a plurality of flow dividing plates are fixedly connected to the inner wall of the tail end of the conveying pipe, and the outer side surfaces of the flow dividing plates are arc-shaped.

The preferable technical scheme of the utility model is that the ultrasonic ring is positioned below the shell and fixedly connected with the outer side of the heating cylinder.

The preferable technical scheme of the utility model is that the components in the buffer mechanism are made of high-temperature resistant materials.

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

according to the high-quality injection molding machine with the bubble removing mechanism, the arc-shaped plate, the shell, the heating cylinder and the screw rod are arranged, when the arc-shaped plate is in a horizontal state, raw materials in the material box are transported to the upper side of the shell through the material conveying pipe and temporarily stay above the shell, when the arc-shaped plate is gradually in a vertical state, the stay raw materials gradually fall into the heating cylinder through the gap, and at the moment, the bottom surface of the shell is level with the horizontal plane of molten raw materials in the heating cylinder, so that newly added raw materials can smoothly fall into the molten raw materials through the gap; compared with the existing injection molding machine, the utility model controls the state of the arc plate to enable the newly added raw material to intermittently stay above the shell, thereby realizing the reduction of the falling speed of the raw material, reducing the occurrence of the condition that the added raw material impacts the liquid level in the heating cylinder to oscillate to generate bubbles, reducing the consequence that the bubbles are pushed into the cavity of the mold plate by the screw rod, reducing the occurrence of defects of the molded product, and further improving the quality of the injection molded product.

Drawings

FIG. 1 is a schematic view of a bubble removal mechanism according to an embodiment of the present utility model;

FIG. 2 is a cross-sectional view of the relevant structure of the bubble removal mechanism provided in the embodiment of the present utility model;

FIG. 3 is a schematic view of a manifold structure provided in an embodiment of the present utility model;

in the drawings, the list of components represented by the various numbers is as follows:

1. a frame; 11. a material box; 12. a material conveying pipe; 13. a heating cylinder; 14. a heating ring; 15. a screw rod; 16. a nozzle; 17. a mold plate; 2. a housing; 21. a semi-enclosed space; 22. a support tube; 3. a disc; 4. a connecting rod; 41. a round wheel; 42. an arc-shaped rod; 5. a seal ring; 6. a diverter plate; 7. an ultrasonic ring.

Detailed Description

The technical scheme of the utility model is further described below by the specific embodiments with reference to the accompanying drawings.

A high quality injection molding machine with bubble removal mechanism, includes frame 1, material box 11, conveying pipeline 12, heating cylinder 13, heating ring 14, hob 15, nozzle 16 and mould board 17, and conveying pipeline 12 end and be provided with buffer gear in heating cylinder 13, buffer gear includes:

the shell 2 is provided with a semi-closed space 21 at the vertical central shaft of the shell 2, the top and the bottom of the semi-closed space 21 are both open ends, the upper surface of the shell 2 is fixedly connected with a support tube 22, and one end of the support tube 22, which is far away from the shell 2, is fixedly connected with the inner wall of the top of the heating cylinder 13;

the bottom surface of the disc 3 is rotationally connected with the bottom surface of the semi-closed space 21, the inner side of the disc 3 is fixedly connected with the surface of the screw rod 15, and the top surface of the disc 3 is provided with threads;

the connecting rod 4, connecting rod 4 rotates the connection in casing 2 inside, and connecting rod 4 one end has linked firmly round wheel 41, and round wheel 41 is located disc 3 top surface, and is provided with the screw thread at round wheel 41 outside surface, and the other end has linked firmly arc pole 42.

The existing heating cylinder 13 and the material box 11 are fixedly connected in the frame 1, the material box 11 is communicated with the inside of the heating cylinder 13 through a material conveying pipe 12, a nozzle 16 is arranged at the bottom of the heating cylinder 13, the nozzle 16 stretches into a die plate 17 and is communicated with a cavity in the die plate 17, a heating ring 14 is uniformly arranged on the outer side of the heating cylinder 13, the heating ring 14 is close to one side of the nozzle 16 and the die plate 17, a screw rod 15 is positioned in the heating cylinder 13, the top end of the screw rod 15 is fixedly connected with a motor output shaft in the top frame 1, and a motor is connected with a telescopic device in the frame 1, so that the screw rod 15 can realize the functions of rotation and advance and retreat in the heating cylinder 13;

when the screw rod 15 works, when the screw rod 15 advances forwards, the check ring is opened, molten raw materials flow to the nozzle 16 of the screw rod 15 through the check ring, when the screw rod 15 retreats backwards, the check ring is closed, the molten raw materials at the nozzle 16 are blocked from flowing back into the heating cylinder 13, and simultaneously the molten raw materials in the heating cylinder 13 are blocked from flowing to the nozzle 16, at the moment, under the action of the heating ring 14, the screw rod 15 rotates and processes the molten raw materials in the heating cylinder 13, and then the screw rod 15 is repeatedly controlled to advance and retreat.

1-2, wherein the shell 2 is suspended in the heating cylinder 13 through the supporting tube 22, the shell 2 is sleeved on the spiral rod 15 through an opening end, the spiral rod 15 is divided into a spiral part and a non-spiral part, and the shell 2 is positioned between the bottom of the tail end of the conveying pipe 12 and the top of the spiral rod 15 with the spiral part;

the outer sides of the arc rods 42 are contacted with the inner wall of the heating cylinder 13, a plurality of arc rods 42 are circularly distributed around the side surface of the shell 2, and gaps of 1-2cm are arranged between the adjacent arc rods 42 so that the arc plates rotate on the side surface of the shell 2;

the topmost surface of the disc 3 is provided with concave threads, and the outer side of the round wheel 41 is provided with convex threads, so that when the disc 3 rotates, the disc 3 can drive the connecting rod 4 to rotate in the shell 2 through the round wheel 41 by the cooperation of the concave and convex threads;

when the screw rod 15 rotates in the heating cylinder 13, the screw rod 15 drives the disc 3 to rotate, so that the disc 3 drives the connecting rod 4 to rotate through the round wheel 41, and the connecting rod 4 drives the arc rod 42 to rotate on the side surface of the shell 2, when the arc rod 42 is in a horizontal state, the arc rod 42 fills the space between the side surface of the shell 2 and the inner wall of the heating cylinder 13, when the arc rod 42 rotates, the gap between the side surface of the shell 2 and the inner wall of the heating cylinder 13 is gradually opened until the gap is maximum in a vertical state, and the arc rod 42 is intermittently in a horizontal or vertical state along with the rotation of the screw rod 15;

when the arc plate is in a horizontal state, the raw materials in the material box 11 are transported to the upper side of the shell 2 through the material conveying pipe 12 and stay above the shell 2 temporarily, when the arc plate is gradually in a vertical state, the stay raw materials gradually fall into the heating cylinder 13 through the gap, at the moment, the bottom surface of the shell 2 is level with the level of the molten raw materials in the heating cylinder 13, so that the newly added raw materials can smoothly fall into the molten raw materials through the gap, when the screw rod 15 advances and retreats in the heating cylinder 13, the screw rod 15 stops rotating, and the arc plate closes the gap between the shell 2 and the inner wall of the heating cylinder 13;

compared with the existing injection molding machine, the utility model controls the state of the arc plate to enable newly added raw materials to intermittently stay above the shell 2, thereby realizing the reduction of the falling speed of the raw materials, reducing the occurrence of the condition that the added raw materials impact the liquid level in the heating cylinder 13 to oscillate so as to generate bubbles, reducing the consequence that the bubbles are pushed into the cavity of the mold plate 17 by the screw rod 15, reducing the occurrence of defects of molded products, and further improving the quality of the injection molded products.

As a possible implementation manner of the present embodiment, as shown in fig. 2, it is preferable that the upper surface of the housing 2 is inclined downward in the circumferential direction, and the edge portion of the upper surface of the housing 2 is flush with the surface of the arc plate;

when the raw materials fall on the upper surface of the shell 2, under the action of gravity, the raw materials can move to the arc plate along the upper surface of the inclined shell 2, and the edge part of the upper surface of the shell 2 is flush with the surface of the arc plate, so that the raw materials can smoothly move from the shell 2 to the arc plate, the accumulation of the raw materials at the arc plate is facilitated, and when the arc plate rotates, the raw materials can be conveniently directly added into the molten raw materials.

As a possible implementation manner of the present solution, preferably, as shown in fig. 2, a sealing ring 5 is fixedly connected to the inner side of the bottom opening end of the housing 2;

through the setting of sealing washer 5, be favorable to improving the leakproofness between casing 2 bottom open end inboard and the hob 15 surface to this reduces in the gap entering semi-closed space 21 of molten form raw materials through the open end, if the raw materials of molten form gets into and when solidifying, then can influence circle wheel 41 on the pivoted smoothness nature of disc 3 surface, and then influence the normal rotation of arc.

As a possible implementation manner of the present solution, preferably, as shown in fig. 1 and as shown in fig. 3, a plurality of flow dividing plates 6 are fixedly connected to the inner wall of the tail end of the conveying pipe 12, and the outer side surfaces of the flow dividing plates 6 are arc-shaped;

the splitter plate 6 is symmetrically arranged at the inner wall of the tail end of the conveying pipe 12, opposite surfaces of the symmetrical splitter plate 6 are plane surfaces, and the surfaces of the other sides of the splitter plate 6 are arc surfaces, when raw materials move to the upper surface of the shell 2 through the conveying pipe 12, part of raw materials directly move to the upper surface of the shell 2 along the space between the opposite planes, and the other part of raw materials move along the arc surfaces to two sides, and fall to the upper surface of the shell 2 at different positions along the inner wall of the heating cylinder 13, so that the situation that the raw materials accumulate on the upper surface of one side of the shell 2 close to the tail end of the conveying pipe 12 is reduced.

As a possible implementation of the present solution, it is preferable that, as shown in fig. 1, an ultrasonic ring 7 is fixedly connected to the outside of the heating cylinder 13 and below the housing 2;

the ultrasonic wave ring 7 is in the same position with the liquid level in the heating cylinder 13, when the screw rod 15 stirs the molten raw material, the bubbles in the molten raw material move upwards to the liquid level along with the stirring, the raw material on the shell 2 slides into the bubbles lifted by the liquid level, and the ultrasonic wave ring 7 punctures the bubbles in a sound wave mode, so that the condition that the bubbles exist in the molten raw material is reduced, the effect of removing the bubbles is further played, and the influence of the bubbles on the quality of injection molding finished products is reduced.

As a possible implementation manner of the present embodiment, preferably, as shown in fig. 1, a high-temperature resistant material is used as a component in the buffer mechanism; high temperature resistant materials such as: silicon carbide, silicon nitride, nickel-based alloy materials and the like, and the influence of high temperature in the heating cylinder 13 on the inner parts of the buffer mechanism is reduced through the high temperature resistant materials, so that the service life of the inner parts of the buffer mechanism is prolonged.

While the utility model has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the spirit and scope of the utility model. The utility model is not to be limited by the specific embodiments disclosed herein, but rather, embodiments falling within the scope of the appended claims are intended to be embraced by the utility model.

Claims

1. High quality injection molding machine with bubble removal mechanism, including frame (1), material case (11), conveying pipeline (12), heating jar (13), heating ring (14), hob (15), nozzle (16) and mould board (17), its characterized in that, conveying pipeline (12) end just is provided with buffer gear in heating jar (13), buffer gear includes:

the shell (2), a semi-closed space (21) is formed in the vertical central shaft of the shell (2), the top and the bottom of the semi-closed space (21) are both open ends, the upper surface of the shell (2) is fixedly connected with a support tube (22), and one end, far away from the shell (2), of the support tube (22) is fixedly connected with the inner wall of the top of the heating cylinder (13);

the bottom surface of the disc (3) is rotationally connected with the bottom surface of the semi-closed space (21), the inner side of the disc (3) is fixedly connected with the surface of the screw rod (15), and the top surface of the disc (3) is provided with threads;

connecting rod (4), connecting rod (4) are in casing (2) inside rotation connection, connecting rod (4) one end has linked firmly round wheel (41), round wheel (41) are located disc (3) top surface, and be provided with the screw thread on round wheel (41) outside surface, and the other end has linked firmly arc pole (42).

2. The high quality injection molding machine with bubble removal mechanism of claim 1, wherein: the upper surface of the shell (2) is inclined downwards towards the surrounding direction, and the edge part of the upper surface of the shell (2) is flush with the surface of the arc-shaped plate.

3. The high quality injection molding machine with bubble removal mechanism of claim 2, wherein: the inner side of the opening end at the bottom of the shell (2) is fixedly connected with a sealing ring (5).

4. The high quality injection molding machine with bubble removal mechanism of claim 1, wherein: a plurality of flow dividing plates (6) are fixedly connected to the inner wall of the tail end of the conveying pipe (12), and the outer side surfaces of the flow dividing plates (6) are arc-shaped.

5. The high quality injection molding machine with bubble removal mechanism of claim 1, wherein: the ultrasonic ring (7) is fixedly connected to the outer side of the heating cylinder (13) and is positioned below the shell (2).

6. The high quality injection molding machine with bubble removal mechanism of claim 1, wherein: the components in the buffer mechanism are made of high-temperature resistant materials.