Rapid injection molding mechanism for plastic bucket injection molding machine

Abstract

The utility model relates to the technical field of plastic bucket production and injection molding, and provides a quick injection molding mechanism for a plastic bucket injection molding machine, which comprises an outer box and a discharge base, the discharge base is connected to the bottom of the outer box, an extrusion cavity is arranged in the discharge base and is communicated with the outer box, and an extrusion component is arranged in the outer box and the extrusion cavity. The conversion motor is installed on the outer surface of the outer box, a rotating column is rotationally connected into the outer box and connected with the output end of the conversion motor, and a plurality of discharging holes are formed in the surface of the rotating column. By means of the technical scheme, the problems that in the related technology, when a screw is pushed, the injection speed is low, the state of plasticized liquid in a mold cavity is uneven, the screw cannot inject all the plasticized liquid into the mold cavity, the injection efficiency is low, molten liquid plasticized last time is left in the plasticization cavity all the time, the liquid is plasticized multiple times, and the injection efficiency is low are solved. The subsequent melting quality is influenced, and the qualified rate of products is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic barrel production injection molding, in particular to a rapid injection molding mechanism for a plastic barrel injection molding machine. Background Art

[0002] An injection molding machine is a primary molding device used to create various shapes of plastic products from thermoplastics or thermosetting plastics using molds. It heats the plastic and applies high pressure to the molten plastic, forcing it to eject and fill the mold cavity. The injection system is one of the most important components of an injection molding machine, with the most widely used being the screw type. During a single cycle, the machine heats and plasticizes a certain amount of plastic within a specified timeframe. The screw then injects the molten plastic into the mold cavity at a specific pressure and speed. After injection, the molten material in the mold cavity remains in its original shape.

[0003] The current injection molding machine injection mechanism consists of a plasticizing device and a power transmission device. After the plastic particles are plasticized by a screw, the screw is pushed to directly inject the molten liquid into the mold cavity of the mold clamping device. However, when the screw is pushed, the injection speed is slow, resulting in an uneven state of the plasticized liquid in the mold cavity, and the screw cannot inject all the liquid plasticized at the same time into the mold cavity. The injection efficiency is low, and the plasticizing cavity always has residual molten liquid from the last plasticization, causing the liquid to undergo multiple plasticizations, affecting the subsequent melting quality and reducing the product qualification rate.

[0004] Therefore, improvements are made to address the above problems. Utility Model Content

[0005] The utility model proposes a rapid injection molding mechanism for a plastic barrel injection molding machine, which solves the problem in the related art that when the screw is pushed, the injection speed is slow, resulting in an uneven state of the plasticized liquid in the mold cavity, and the screw cannot inject all the liquid plasticized at the same time into the mold cavity, resulting in low injection efficiency. The plasticizing cavity always has molten liquid plasticized last time, causing the liquid to undergo multiple plasticizations, affecting the subsequent melting quality and reducing the qualified rate of the product.

[0006] The technical solution of the utility model is as follows:

[0007] An outer box and a discharge base, wherein the discharge base is connected to the bottom of the outer box;

[0008] A stirring component, the stirring component is arranged inside the outer box;

[0009] An extrusion chamber and an extrusion assembly, wherein the extrusion chamber is provided in the discharge base and is in communication with the outer box, and the extrusion assembly is provided inside the outer box and the extrusion chamber;

[0010] The extrusion assembly includes a conversion motor, which is installed on the outer surface of the outer box. A rotating column is rotatably connected inside the outer box, and the rotating column is connected to the output end of the conversion motor. A plurality of feeding holes are opened on the surface of the rotating column.

[0011] As a further technical solution, a rear groove is provided on the outer surface of the discharge base, which is connected to the extrusion cavity. A pair of round rods are provided in the rear groove, and a movable seat is slidably connected to the round rods. The movable seat is located in the extrusion cavity.

[0012] As a further technical solution, an extrusion piston is provided at one end of the movable seat, and the extrusion piston is sealed against the inner wall of the extrusion cavity. A driving motor is provided on the outer surface of the discharge base, and a rotating frame is provided at the output end of the driving motor.

[0013] As a further technical solution, a groove is provided on the side end face of the movable seat, a transmission rod is rotatably connected to the groove via a pin shaft, a connecting column is provided on the surface of the rotating frame, and one end of the transmission rod is rotatably connected to the connecting column.

[0014] As a further technical solution, the stirring assembly includes a pair of fixing frames fixed on both sides of the outer box, a pair of columns are installed on the fixing frames, and a telescopic cylinder is installed at the bottom of the fixing frames.

[0015] As a further technical solution, the output end of the telescopic cylinder is connected to a movable plate, the movable plate is connected to the column sliding sleeve, a stirring motor is installed on the surface of the movable plate, an agitator is provided at the output end of the stirring motor, and a heating tube is provided inside the outer box.

[0016] As a further technical solution, the front end of the extrusion piston and one end in the extrusion cavity are both conical structures.

[0017] As a further technical solution, an air return groove is provided at the top of the extrusion cavity.

[0018] As a further technical solution, a plurality of heating tubes are provided, and each heating tube has a circular ring structure.

[0019] The working principle and beneficial effects of the utility model are as follows:

[0020] 1. The utility model is provided with an extrusion assembly. Through the interaction of the conversion motor, conversion column, discharge hole, movable seat, extrusion piston, rotating frame and transmission rod and other structures, the switch of the discharge hole can be flexibly switched by the rotation of the conversion column. The extrusion piston can be pushed and pulled repeatedly to continuously discharge the material and maintain the uniform discharge effect.

[0021] 2. The utility model is provided with a stirring assembly, which can continuously stir and heat the material through the interaction of structures such as the telescopic cylinder, movable plate, stirring motor, stirrer and heating tube, so that the material can flow evenly without clogging. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0023] Figure 1 This is a schematic diagram of the structure of the utility model;

[0024] Figure 2 This is the axonometric drawing of the utility model;

[0025] Figure 3 This is an axonometric sectional view of the utility model;

[0026] Figure 4 For this utility model Figure 3 A partial enlarged view of part A;

[0027] In the figure: 1. Outer box; 2. Discharge base; 3. Extrusion chamber; 4. Extrusion assembly; 4-1. Conversion motor; 4-2. Rotating column; 4-3. Feeding hole; 4-4. Rear groove; 4-5. Round rod; 4-6. Moving seat; 4-7. Extrusion piston; 4-8. Driving motor; 4-9. Rotating frame; 4-10. Groove; 4-11. Transmission rod; 4-12. Connecting column; 5. Stirring assembly; 5-1. Fixed frame; 5-2. Column; 5-3. Telescopic cylinder; 5-4. Moving plate; 5-5. Stirring motor; 5-6. Agitator; 5-7. Heating tube; 6. Return air groove. DETAILED DESCRIPTION

[0028] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0029] like Figures 1 to 4 As shown, this embodiment proposes a rapid injection molding mechanism for a plastic barrel injection molding machine, comprising

[0030] The outer box 1 and the discharge base 2 are connected to the bottom of the outer box 1;

[0031] A stirring component 5 is provided inside the outer box 1;

[0032] An extrusion chamber 3 and an extrusion assembly 4, wherein the extrusion chamber 3 is provided in the discharge base 2, the extrusion chamber 3 is communicated with the outer box 1, and the extrusion assembly 4 is provided inside the outer box 1 and the extrusion chamber 3;

[0033] The extrusion assembly 4 includes a conversion motor 4-1, which is mounted on the outer surface of the outer box 1. A rotating column 4-2 is rotatably connected inside the outer box 1. The rotating column 4-2 is connected to the output end of the conversion motor 4-1. A plurality of feed holes 4-3 are provided on the surface of the rotating column 4-2. A rear groove 4-4 is provided on the outer surface of the discharge base 2. The rear groove 4-4 is connected to the extrusion chamber 3. A pair of round rods 4-5 are provided in the rear groove 4-4. A movable seat 4-6 is slidably connected to the round rod 4-5. The movable seat 4-6 is located at the extrusion chamber 3. Cavity 3, an extrusion piston 4-7 is provided at one end of the movable seat 4-6, and the extrusion piston 4-7 is sealed and fitted on the inner wall of the extrusion cavity 3. A driving motor 4-8 is provided on the outer surface of the discharge base 2, and a rotating frame 4-9 is provided on the output end of the driving motor 4-8. A groove 4-10 is provided on the side end face of the movable seat 4-6, and a transmission rod 4-11 is rotatably connected to the groove 4-10 through a pin shaft. A connecting column 4-12 is provided on the surface of the rotating frame 4-9, and one end of the transmission rod 4-11 is rotatably connected to the connecting column 4-12.

[0034] In this embodiment, in order to achieve a stable and rapid extrusion effect, an extrusion assembly 4 is designed. A conversion motor 4-1 is installed on the outside of the outer box 1. A rotating column 4-2 is connected to the inside and is provided with a plurality of discharge holes 4-3 for discharging materials into the extrusion chamber 3. The discharge holes 4-3 can be controlled by the conversion motor 4-1 to rotate and close the discharge holes 4-3, so that the extrusion chamber 3 reaches a closed state. A rear groove 4-4 communicating with the extrusion chamber 3 is provided at the rear end of the discharge base 2. Two round rods 4-5 are installed in the rear groove 4-4 and are slidably connected to a moving seat 4-6 on the surface. One side of the moving seat 4-6 is connected to the extrusion movable member. The plug 4-7 can extrude the material through the extrusion piston 4-7 when the movable seat 4-6 moves. A driving motor 4-8 is installed on the outer surface of the discharging base 2, and a rotating frame 4-9 is provided at the output end of the driving motor 4-8. A groove 4-10 is provided on the movable seat 4-6 and a transmission rod 4-11 is connected to the inside. A connecting column 4-12 is provided on the surface of the rotating frame 4-9 and is fittedly connected to one end of the transmission rod 4-11. When the driving motor 4-8 controls the rotating frame 4-9 to rotate, the extrusion piston 4-7 can be repeatedly pushed and pulled by the transmission rod 4-11 to achieve the effect of repeated feeding and discharging.

[0035] Furthermore, the stirring assembly 5 includes a pair of fixed frames 5-1, which are fixed on both sides of the outer box 1, a pair of columns 5-2 are installed on the fixed frames 5-1, a telescopic cylinder 5-3 is installed at the bottom of the fixed frame 5-1, the output end of the telescopic cylinder 5-3 is connected to a movable plate 5-4, the movable plate 5-4 is connected to the column 5-2 in a sliding sleeve, a stirring motor 5-5 is installed on the surface of the movable plate 5-4, an agitator 5-6 is provided at the output end of the stirring motor 5-5, and a heating tube 5-7 is provided inside the outer box 1.

[0036] In this embodiment, in order to achieve the effect of continuous heating and stirring of the material, a stirring component 5 is designed. A fixed frame 5-1 is provided on both sides of the interior of the outer box 1. The fixed frame 5-1 is installed with two columns 5-2, and a telescopic cylinder 5-3 is installed at the bottom. The output end of the telescopic cylinder 5-3 is connected to a movable plate 5-4 and is connected to the sliding sleeve of the column 5-2. The movable plate 5-4 can be controlled to move up and down by the telescopic cylinder 5-3. A stirring motor 5-5 is provided on the surface of the movable plate 5-4. The output end of the stirring motor 5-5 is connected to a stirrer 5-6. The material is continuously stirred by rotating the stirrer 5-6. A plurality of heating tubes 5-7 are also provided inside to continuously heat the material.

[0037] Furthermore, the front end of the extrusion piston 4-7 and one end inside the extrusion chamber 3 are both tapered structures.

[0038] In this embodiment, the tapered structure allows the material to be extruded more fully, reducing residue.

[0039] Furthermore, an air return groove 6 is provided at the top of the extrusion cavity 3 .

[0040] In this embodiment, by installing the return air groove 6, suction can be carried out when the extrusion piston 4-7 returns, and the material can be quickly replenished in conjunction with the discharge hole 4-3.

[0041] Furthermore, a plurality of heating tubes 5-7 are provided, and the heating tubes 5-7 are in a circular ring structure.

[0042] In this embodiment, the circular ring structure enables the plurality of heating tubes 5 - 7 to sufficiently and evenly heat the material.

[0043] When needed, the material is put into the outer box 1, the telescopic cylinder 5-3 is started, the movable plate 5-4 is repeatedly moved up and down, and the stirring motor 5-5 is started to control the stirrer 5-6 to stir the material. During the stirring process, the heating tube 5-7 is started to heat the material, and the material flows into the extrusion cavity 3 through the discharge hole 4-3. When discharging, the conversion motor 4-1 is started to control the rotating column 4-2 to close the discharge hole 4-3, and then the drive motor 4-8 is started to drive the transmission rod 4-11 through the rotating frame 4-9 to push the extrusion piston 4-7 forward to extrude the material outward. When moving back, the discharge hole 4-3 is switched open again, and the material is re-extruded after back-drawing.

[0044] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A rapid injection molding mechanism for a plastic barrel injection molding machine, characterized in that: include An outer box (1) and a discharge base (2), wherein the discharge base (2) is connected to the bottom of the outer box (1); A stirring assembly (5), the stirring assembly (5) being arranged inside the outer box (1); An extrusion chamber (3) and an extrusion assembly (4), wherein the extrusion chamber (3) is provided in the discharge base (2), the extrusion chamber (3) is communicated with the outer box (1), and the extrusion assembly (4) is arranged inside the outer box (1) and the extrusion chamber (3); The extrusion assembly (4) includes a conversion motor (4-1), which is mounted on the outer surface of the outer box (1). A rotating column (4-2) is rotatably connected inside the outer box (1), and the rotating column (4-2) is connected to the output end of the conversion motor (4-1). A plurality of discharge holes (4-3) are provided on the surface of the rotating column (4-2).

2. A rapid injection molding mechanism for a plastic barrel injection molding machine according to claim 1, characterized in that: A rear groove (4-4) is provided on the outer surface of the discharge base (2), the rear groove (4-4) is connected to the extrusion cavity (3), a pair of round rods (4-5) are provided in the rear groove (4-4), and a movable seat (4-6) is slidably connected to the round rods (4-5), and the movable seat (4-6) is located in the extrusion cavity (3).

3. A rapid injection molding mechanism for a plastic barrel injection molding machine according to claim 2, characterized in that: An extrusion piston (4-7) is provided at one end of the movable seat (4-6), and the extrusion piston (4-7) is sealed and fitted on the inner wall of the extrusion cavity (3). A driving motor (4-8) is provided on the outer surface of the discharge base (2), and a rotating frame (4-9) is provided at the output end of the driving motor (4-8).

4. A rapid injection molding mechanism for a plastic barrel injection molding machine according to claim 3, characterized in that: A groove (4-10) is provided on the side end surface of the movable seat (4-6), a transmission rod (4-11) is rotatably connected to the groove (4-10) via a pin shaft, a connecting column (4-12) is provided on the surface of the rotating frame (4-9), and one end of the transmission rod (4-11) is rotatably sleeved and connected to the connecting column (4-12).

5. The rapid injection molding mechanism for a plastic barrel injection molding machine according to claim 1, characterized in that: The stirring assembly (5) comprises a pair of fixing frames (5-1), the fixing frames (5-1) being fixed on both sides of the outer box (1), a pair of upright posts (5-2) being mounted on the fixing frames (5-1), and a telescopic cylinder (5-3) being mounted on the bottom of the fixing frames (5-1).

6. A rapid injection molding mechanism for a plastic barrel injection molding machine according to claim 5, characterized in that: The output end of the telescopic cylinder (5-3) is connected to a movable plate (5-4), the movable plate (5-4) is slidably connected to the upright column (5-2), a stirring motor (5-5) is mounted on the surface of the movable plate (5-4), a stirrer (5-6) is provided at the output end of the stirring motor (5-5), and a heating tube (5-7) is provided inside the outer box (1).

7. The rapid injection molding mechanism for a plastic barrel injection molding machine according to claim 3, characterized in that: The front end of the extrusion piston (4-7) and one end inside the extrusion cavity (3) are both conical structures.

8. The rapid injection molding mechanism for a plastic barrel injection molding machine according to claim 1, characterized in that: An air return groove (6) is provided at the top of the extrusion cavity (3).

9. The rapid injection molding mechanism for a plastic barrel injection molding machine according to claim 6, characterized in that: A plurality of heating tubes (5-7) are provided, and each heating tube (5-7) is in a circular ring structure.

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