Injection molding device for plastic composite material production

Abstract

The utility model discloses an injection molding device for producing a plastic composite material, and belongs to the field of injection molding machines. An injection molding device for plastic composite material production comprises a hot melting tank and a sealing cover detachably connected to the hot melting tank, the discharging end of the hot melting tank is fixedly communicated with an injection molding cylinder, the injection molding device further comprises a ball body rotationally connected in the sealing cover, a stirring rod is rotationally connected in the ball body, one end of the stirring rod extends into the hot melting tank, and the other end of the stirring rod extends into the hot melting tank. The end, away from the hot melting tank, of the stirring rod is rotationally connected with a positioning frame. The stirring rod is driven by the adjusting piece to swing in the hot melting tank in a circle drawing mode, plastic particles can be evenly heated, molten melt plastic can be scattered, gas wrapped in the melt plastic is exposed outside, the gas is processed from a material source, the plastic product quality is improved, and the material compactness is enhanced.

Description

TECHNICAL FIELD

[0001] The utility model relates to injection molding machine technical field especially relates to a kind of injection molding device for plastic composite production. BACKGROUND

[0002] Injection molding machine as the core equipment of plastic processing industry, it is through injection molding technology that thermoplastic or thermosetting plastic is efficiently converted into various precision plastic parts, the equipment is mainly composed of mold clamping system, injection system and control system, according to structural difference can be divided into vertical, horizontal and full electric three major types, its working principle is that plastic particles are melted by heating device, then high pressure is applied by screw or plunger, viscous state plastic is injected into closed mold cavity at high speed, target product is obtained after cooling and solidification, this processing mode integrating heating, plasticizing and injection can realize high-precision molding of complex geometry.

[0003] During the molding process of plastic products, the vacuum auxiliary system plays a key role. By integrating a vacuum pump group in the critical areas of the mold, a negative pressure environment can be created, effectively reducing surface bubbles, shrink marks, and other defects caused by gas retention.

[0004] However, the traditional vacuum system only acts on the surface of the mold cavity, and it is difficult to reach the trace amount of gas dissolved in the melt. These gases, which are trapped in the plastic molecular chain, expand when heated during the pressure holding stage, ultimately forming silver wire patterns or crater-like dimples on the surface of the product, severely damaging the appearance quality of the product. INVENTION CONTENTS

[0005] The utility model aims at solving the problem of the prior art that the injection molding device cannot remove the gas trapped in the plastic molecular chain, thereby affecting the appearance quality of the product, and proposes an injection molding device for plastic composite production.

[0006] To achieve the above purpose, the utility model adopts the following technical scheme:

[0007] An injection molding device for plastic composite production, comprising a hot melt tank and a sealing cover detachably connected to the hot melt tank, the discharge end of the hot melt tank is fixedly connected with an injection molding cylinder, further comprising: a spherical body rotatably connected in the sealing cover, wherein a stirring rod is rotatably connected in the spherical body, one end of the stirring rod extends into the hot melt tank, and the other end of the stirring rod away from the hot melt tank is rotatably connected with a positioning frame; a mounting bracket is fixedly installed on the injection molding cylinder and located on one side of the hot melt tank, wherein the mounting bracket is provided with an adjusting member for driving the stirring rod to make conical oscillation along the axis of the hot melt tank; a vacuum pipe is fixedly connected to the hot melt tank.

[0008] For adjusting the angle of the stirring rod, preferably, the adjusting component includes: a first motor, fixedly mounted on the mounting frame, with an eccentric wheel fixedly connected to the output end of the first motor; and a connecting rod, rotatably connected to the positioning frame, the connecting rod cooperating with the eccentric wheel.

[0009] To facilitate the opening and closing of the sealing cap, preferably, the hot melt tank is fixedly connected with a buckle for fixing the sealing cap.

[0010] To control the discharge of molten plastic, preferably, a solenoid valve is fixedly fitted at the discharge end of the hot melt tank, and the solenoid valve is located at the upper end of the injection cylinder.

[0011] In order to supply material to the inside of the hot melt tank, preferably, a feed pipe is fixedly connected to the hot melt tank, and a flange is fixedly connected to the end of the feed pipe away from the hot melt tank.

[0012] In order to drive the stirring rod to rotate, preferably, a stirring motor is fixedly installed on the positioning frame, and the stirring rod is fixedly connected to the output end of the stirring motor.

[0013] Compared with the prior art, this utility model provides an injection molding device for the production of plastic composite materials, which has the following beneficial effects:

[0014] 1. The injection molding device for producing plastic composite materials, through the setting of a vacuum tube, facilitates the connection between the hot melt tank and an external vacuum pump, thereby improving the degassing quality of the molten plastic.

[0015] 2. This injection molding device for producing plastic composite materials can supply materials to the inside of the hot melt tank by setting up a feed pipe, thereby improving the processing efficiency of the injection molding device.

[0016] The parts of this device not mentioned are the same as or can be implemented using existing technologies. This utility model drives the stirring rod to swing in a circle inside the hot melt tank through the adjusting component. This not only enables the plastic particles to be heated evenly, but also breaks up the molten plastic, exposing the gas trapped inside. This treats the gas at the source of the material, improves the quality of plastic products, and enhances the density of the material. Attached Figure Description

[0017] Figure 1 This is an isometric view of the structure of an injection molding device for producing plastic composite materials according to this utility model;

[0018] Figure 2 This is a cross-sectional schematic diagram of the hot melt tank structure of an injection molding device for producing plastic composite materials according to this utility model;

[0019] Figure 3 This is a cross-sectional schematic diagram of the sealing cover structure of an injection molding device for producing plastic composite materials according to this utility model;

[0020] Figure 4 This is a cross-sectional schematic diagram of the adjusting component structure of an injection molding device for producing plastic composite materials according to this utility model.

[0021] In the diagram: 1. Hot melt tank; 2. Sealing cap; 3. Sphere; 4. Positioning frame; 5. Stirring motor; 6. Stirring rod; 7. Mounting frame; 8. Adjusting component; 801. First motor; 802. Eccentric wheel; 803. Connecting rod; 9. Injection cylinder; 10. Solenoid valve; 11. Feed pipe; 12. Vacuum tube. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0024] Example:

[0025] Reference Figures 1-4 An injection molding device for producing plastic composite materials includes a hot melt tank 1 and a sealing cap 2 connected to the hot melt tank 1 by a snap-fit. The discharge end of the hot melt tank 1 is fixedly connected to an injection cylinder 9. The device also includes a ball 3 rotatably connected inside the sealing cap 2. A stirring rod 6 is rotatably connected inside the ball 3, allowing the stirring rod 6 to rotate easily on the sealing cap 2. One end of the stirring rod 6 extends into the hot melt tank 1, and the end of the stirring rod 6 away from the hot melt tank 1 is rotatably connected to a positioning frame 4. A stirring motor 5 is fixedly mounted on the positioning frame 4, and the stirring rod 6 is fixedly connected to the stirring motor 5. The output end of the stirring motor 5 is used to drive the stirring rod 6 to rotate and stir the plastic particles inside the hot melt tank 1; the mounting bracket 7 is fixedly installed on the injection cylinder 9 and is located on one side of the hot melt tank 1. The mounting bracket 7 is provided with an adjusting component 8 for driving the stirring rod 6 to make conical swing along the axis of the hot melt tank 1; the vacuum tube 12 is fixedly connected to the hot melt tank 1. The end of the vacuum tube 12 away from the hot melt tank 1 is connected to an external vacuum pump for evacuating air from the inside of the hot melt tank 1. The discharge end of the hot melt tank 1 is fixedly fitted with a solenoid valve 10, which is located at the upper end of the injection cylinder 9.

[0026] Specifically, by driving the stirring rod 6 to swing in a circular motion inside the hot melt tank 1 through the adjusting component 8, not only can the plastic particles be heated evenly, but the molten plastic can also be broken up, exposing the gas trapped inside. This treats the gas at the source of the material, improves the quality of plastic products, and enhances the density of the material.

[0027] The adjusting component 8 includes a first motor 801 fixedly mounted on the mounting frame 7, the output end of the first motor 801 passing through the mounting frame 7 and fixedly connected to an eccentric wheel 802; and a connecting rod 803 rotatably connected to the positioning frame 4, the connecting rod 803 cooperating with the eccentric wheel 802.

[0028] Specifically, by setting the adjusting component 8, one end of the connecting rod 803 is sleeved on the eccentric wheel 802, and the first motor 801 is started. The first motor 801 drives the eccentric wheel 802 to rotate, which can adjust the angle of the stirring rod 6 so that it can draw a circle inside the hot melt tank 1, thereby improving the stirring quality and degassing effect of the plastic particles.

[0029] A feed pipe 11 is fixedly connected to the hot melt tank 1, and a flange connected to an external pipeline is fixedly connected to the end of the feed pipe 11 away from the hot melt tank 1.

[0030] Specifically, by setting up the feed pipe 11, material can be supplied to the inside of the hot melt tank 1, thereby improving the processing efficiency of the injection molding device.

[0031] Working principle: When hot-melting plastic granules, the operator places one end of the connecting rod 803 onto the eccentric wheel 802 and starts the first motor 801 using an external control switch. When the first motor 801 drives the eccentric wheel 802 to rotate, the connecting rod 803 pulls the positioning frame 4 to move. When the positioning frame 4 moves, it drives the stirring rod 6 and the stirring motor 5 to move. Since the stirring rod 6 is rotatably connected to the inside of the sealing cover 2 through the ball 3, when the eccentric wheel 802 rotates, the stirring rod 6 rotates in a circle inside the hot melt tank 1, which can evenly stir the plastic granules.

[0032] During the mixing process, the staff uses an external control switch to start the mixing motor 5. The output end of the mixing motor 5 drives the mixing rod 6 to rotate, which can break up the molten plastic inside the hot melt tank 1 and release the internal gas. At the same time, with the help of an external vacuum pump, the molten plastic can be degassed at the source, thereby improving the injection molding quality of plastic products.

[0033] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An injection molding apparatus for producing plastic composite materials, comprising a hot melt tank (1) and a sealing cap (2) detachably connected to the hot melt tank (1), wherein the discharge end of the hot melt tank (1) is fixedly connected to an injection molding cylinder (9), characterized in that, Also includes: The sphere (3) is rotatably connected inside the sealing cover (2). The ball (3) is rotatably connected to a stirring rod (6), one end of the stirring rod (6) extends into the hot melt tank (1), and the end of the stirring rod (6) away from the hot melt tank (1) is rotatably connected to a positioning frame (4). The mounting bracket (7) is fixedly installed on the injection molding cylinder (9) and located on one side of the hot melt tank (1). The mounting frame (7) is provided with an adjusting component (8) for driving the stirring rod (6) to make conical swing along the axis of the hot melt tank (1); A vacuum tube (12) is fixedly connected to the hot melt tank (1).

2. The injection molding device for producing plastic composite materials according to claim 1, characterized in that, The adjusting member (8) includes: The first motor (801) is fixedly mounted on the mounting bracket (7), and the output end of the first motor (801) is fixedly connected to an eccentric wheel (802); The connecting rod (803) is rotatably connected to the positioning frame (4), and the connecting rod (803) cooperates with the eccentric wheel (802).

3. The injection molding device for producing plastic composite materials according to claim 1, characterized in that, The hot melt tank (1) is fixedly connected to a buckle that is fixedly connected to the sealing cap (2).

4. The injection molding apparatus for producing plastic composite materials according to claim 1, characterized in that, The discharge end of the hot melt tank (1) is fixedly fitted with a solenoid valve (10), which is located at the upper end of the injection molding cylinder (9).

5. The injection molding apparatus for producing plastic composite materials according to claim 1, characterized in that, The hot melt tank (1) is fixedly connected to a feed pipe (11), and a flange is fixedly connected to one end of the feed pipe (11) away from the hot melt tank (1).

6. The injection molding apparatus for producing plastic composite materials according to claim 1, characterized in that, The positioning frame (4) is fixedly installed with a stirring motor (5), and the stirring rod (6) is fixedly connected to the output end of the stirring motor (5).

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