Injection structure of injection molding machine

Abstract

The utility model discloses an injection structure of an injection molding machine, and belongs to the technical field of injection molding machines, the injection structure of the injection molding machine comprises a mounting plate, a mounting seat and a fixed seat are respectively mounted above the mounting plate from left to right, a feed hopper is in bolted connection with the upper part of the fixed seat, a hydraulic cylinder is in bolted connection with the upper part of the mounting seat, and the hydraulic cylinder is in bolted connection with the lower part of the mounting plate. A charging barrel is mounted at the output end of the hydraulic cylinder, a power supply box is mounted above the charging barrel, and a heating ring is mounted below the power supply box; a hydraulic cylinder is arranged to drive a charging barrel to move to a position to be injected, at the moment, four sets of heating rings are distributed on the outer side of the charging barrel at equal intervals to heat and melt plastic particles in the charging barrel, then a motor drives a screw rod to rotate, the melted plastic particles are conveyed to an injection nozzle, and finally, the injection nozzle is opened. And the injection nozzle is matched with the injection port to inject molten plastic particles into the mold, so that the melting speed of the plastic particles is effectively increased, and the injection efficiency of the injection machine is improved.

Description

Technical Field

[0001] This utility model relates to the field of injection molding machine technology, and more specifically, to an injection structure for an injection molding machine. Background Technology

[0002] The injection structure of an injection molding machine is the core of the entire equipment. It is responsible for heating and melting plastic materials (usually granular thermoplastics or prepolymers) and injecting them into the mold under high pressure to form the desired plastic product.

[0003] Based on the above, the inventors have discovered that currently, most existing injection molding machines use a single heating ring to heat the plastic material inside the barrel. This heating method takes a long time. In addition, the existing injection head cannot be disassembled, and when impurities appear inside, they cannot be removed and cleaned in time. Therefore, in view of this, the inventors have researched and improved the existing structure to provide an injection structure for an injection molding machine, in order to achieve a more practical purpose. Utility Model Content

[0004] 1. Technical problems to be solved

[0005] To address the problems existing in the prior art, the purpose of this utility model is to provide an injection structure for an injection molding machine that can prevent the use of a single heating ring to heat the plastic material in the barrel, which takes a long time. In addition, existing injection heads cannot be disassembled, making it impossible to remove and clean impurities in a timely manner.

[0006] 2. Technical Solution

[0007] To solve the above problems, the present invention adopts the following technical solution.

[0008] An injection structure for an injection molding machine includes a mounting plate. From left to right, a mounting base and a fixed base are mounted on the upper part of the mounting plate. A feed hopper is bolted to the upper part of the fixed base, and a hydraulic cylinder is bolted to the upper part of the mounting base. A material cylinder is mounted at the output end of the hydraulic cylinder. A power supply box is mounted above the material cylinder, and a heating ring is mounted below the power supply box. A screw is installed inside the material cylinder, and an injection nozzle is mounted at the end of the material cylinder. A connector is threaded to one side of the injection nozzle, and a template is mounted on the outer side of the injection nozzle. A threaded groove is formed on the inner wall of the injection nozzle, and a sealing ring is provided at the connection between the injection nozzle and the connector.

[0009] Furthermore, the mounting plate has mounting grooves at its four corners, and the mounting plate is made of stainless steel.

[0010] Furthermore, a motor is installed on the left side of the barrel, and the output end of the motor is connected to the screw.

[0011] Furthermore, the heating rings are provided in four groups, which are equally distributed on the outside of the material cylinder, and each group of heating rings is connected to the power supply box.

[0012] Furthermore, the four corners of the template are fixedly provided with arc-shaped edges, and the size of the template is matched with the size of the external mold.

[0013] Furthermore, the connection between the connector and the injection nozzle is provided with an external thread, which is threadedly connected to the threaded groove, and the outer wall of the connector is provided with an injection port.

[0014] Furthermore, the bottom of the feed hopper is connected to the material cylinder.

[0015] 3. Beneficial effects

[0016] Compared with existing technologies, the advantages of this utility model are:

[0017] (1) In this solution, by installing the power supply box on the side of the fixed base, the plastic granules are first introduced into the feed hopper. The hydraulic cylinder drives the barrel to the injection position. At this time, four sets of heating rings are evenly distributed on the outside of the barrel to heat and melt the plastic granules inside. Then, the motor drives the screw to rotate, so that the melted plastic granules are transported to the injection nozzle. Finally, the injection nozzle, together with the injection port, injects the melted plastic granules into the mold, which effectively speeds up the melting speed of the plastic granules and improves the injection efficiency of the injection molding machine.

[0018] (2) In this solution, the mounting base is bolted to the top of the mounting plate, and the external thread on the connector head is threaded to the threaded groove on the injection seat. When there are many impurities at the injection nozzle position, the connector head can be quickly removed to clean the injection nozzle. Attached Figure Description

[0019] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0020] Figure 2 This is a schematic diagram of the planar aspect of this utility model;

[0021] Figure 3 This is a schematic diagram of the injection structure of this utility model;

[0022] Figure 4 This is a schematic diagram of the template for this utility model.

[0023] Explanation of the labels in the diagram:

[0024] 1. Mounting plate; 2. Fixing base; 3. Mounting base; 4. Hydraulic cylinder; 5. Power supply box; 6. Heating ring; 7. Template; 8. Material cylinder; 9. Injection nozzle; 10. Connector; 11. Screw; 12. Threaded groove; 13. Sealing ring; 14. Feed hopper. Detailed Implementation

[0025] 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. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0026] Example:

[0027] Please see Figure 1-4 An injection structure for an injection molding machine includes a mounting plate 1 for mounting the injection structure onto the injection molding machine. A mounting base 3 and a fixing base 2 are mounted on the upper part of the mounting plate 1 from left to right. The mounting base 3 is used to mount a hydraulic cylinder 4. A feed hopper 14 is bolted to the upper part of the fixing base 2 for feeding plastic granules. The hydraulic cylinder 4 is bolted to the upper part of the mounting base 3 for moving a barrel 8 left and right. The barrel 8 is mounted at the output end of the hydraulic cylinder 4 for storing plastic granules. A power supply box 5 is mounted above the barrel 8, and a heating ring 6 is mounted below the power supply box 5. The power supply box 5 and the heating ring 6 are used to heat the plastic granules inside the barrel 8. A screw 11 is installed inside the barrel 8 for conveying the plastic granules to the injection nozzle 9. The injection nozzle 9 is mounted at the end of the barrel 8, and a connector 10 is threaded to one side of the injection nozzle 9. The injection nozzle 9 and the connector 10 are used to inject the molten plastic granules into the mold. A template 7 is mounted on the outer side of the injection nozzle 9 for mounting on the mold. A threaded groove 12 is formed on the inner wall of the injection nozzle 9 for quick assembly and disassembly of the connector 10. A sealing ring 13 is provided at the connection between the injection nozzle 9 and the connector 10 to prevent molten plastic particles from overflowing.

[0028] See Figure 1 and Figure 4 Mounting plate 1 has mounting slots at its four corners and is made of stainless steel. By setting mounting plate 1, the injection structure can be installed on the injection machine.

[0029] See Figure 1 and Figure 2 A motor is installed on the left side of the barrel 8. The output end of the motor is connected to the screw 11. By setting the motor and screw 11, the molten plastic particles can be transported to the injection nozzle 9.

[0030] See Figure 1 and Figure 4 There are four sets of heating rings 6, which are evenly distributed on the outside of the barrel 8. Each set of heating rings 6 is connected to the power box 5. By setting the power box 5 and the heating rings 6, the plastic particles in the barrel 8 can be heated.

[0031] See Figure 1 and Figure 4 The four corners of the template 7 are fixed with curved edges, and the size of the template 7 is matched with the size of the external mold. The template 7 can be connected to the external mold.

[0032] See Figure 1 and Figure 4 The connector 10 and the injection nozzle 9 are provided with external threads, which are threaded to the threaded groove 12. The outer wall of the connector 10 is provided with an injection port. By providing the injection nozzle 9 and the injection port, molten plastic particles can be injected into the mold.

[0033] See Figure 1 and Figure 2 The bottom of the feed hopper 14 is connected to the material cylinder 8. The feed hopper 14 facilitates the feeding of plastic granules.

[0034] In operation: First, plastic granules are fed into the feed hopper 14. The hydraulic cylinder 4 moves the barrel 8 to the injection position. At this time, four sets of heating rings 6 are evenly distributed on the outside of the barrel 8 to heat and melt the plastic granules inside. Then, the motor drives the screw 11 to rotate, so that the melted plastic granules are transported to the injection nozzle 9. Finally, the injection nozzle 9, in conjunction with the injection port, injects the melted plastic granules into the mold. The mounting base 3 is bolted to the top of the mounting plate 1, and the external thread on the connector 10 is threaded into the threaded groove 12 on the injection nozzle 9. When there are many impurities at the injection nozzle 9, the connector 10 can be quickly removed to clean the injection nozzle 9. This effectively speeds up the melting of the plastic granules and improves the injection efficiency of the injection molding machine.

[0035] Finally, it should be noted that in the description of this utility model, the terms "vertical," "upper," "lower," "horizontal," 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.

[0036] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0037] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. An injection structure for an injection molding machine, comprising a mounting plate (1), wherein a mounting base (3) and a fixing base (2) are respectively mounted on the upper part of the mounting plate (1) from left to right, and a feed hopper (14) is bolted to the upper part of the fixing base (2), characterized in that: A hydraulic cylinder (4) is bolted to the top of the mounting base (3). A material cylinder (8) is installed at the output end of the hydraulic cylinder (4). A power supply box (5) is installed above the material cylinder (8). A heating ring (6) is installed below the power supply box (5). A screw (11) is installed inside the material cylinder (8). An injection nozzle (9) is installed at the end of the material cylinder (8). A connector (10) is threaded to one side of the injection nozzle (9). A template (7) is installed on the outside of the injection nozzle (9). A threaded groove (12) is opened on the inner side wall of the injection nozzle (9). A sealing ring (13) is provided at the connection between the injection nozzle (9) and the connector (10).

2. An injection structure of an injection molding machine according to claim 1, characterized in that: The mounting plate (1) has mounting grooves at its four corners, and the mounting plate (1) is made of stainless steel.

3. An injection structure of an injection molding machine according to claim 1, characterized in that: A motor is installed on the left side of the barrel (8), and the output end of the motor is connected to the screw (11).

4. An injection structure of an injection molding machine according to claim 1, characterized in that: The heating rings (6) are provided in four groups, which are equally distributed on the outside of the material cylinder (8), and each group of heating rings (6) is connected to the power supply box (5).

5. An injection structure of an injection molding machine according to claim 1, characterized in that: The four corners of the template (7) are fixed with arc-shaped edges, and the size of the template (7) is set to match the size of the external mold.

6. An injection structure of an injection molding machine according to claim 1, characterized in that: The connector (10) and the injection nozzle (9) are provided with an external thread, which is threaded to the threaded groove (12). The outer wall of the connector (10) is provided with an injection port.

7. An injection structure of an injection molding machine according to claim 1, characterized in that: The bottom of the feed hopper (14) is connected to the material cylinder (8).

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