A magnesium alloy semi-solid injection molding leak-proof barrel

Abstract

The utility model discloses a magnesium alloy semi -solid injection molding is with preventing leakage material cylinder relates to work technical field. A magnesium alloy semi -solid injection molding is with preventing leakage material cylinder, including mounting seat, injection molding machine main part and material cylinder, be provided with the clamp assembly on injection molding machine main part, and the clamp assembly includes connecting pipe, first clamp, second clamp and second feed pipe, through first clamp and second clamp are separated to first clamp and second clamp in the clamp assembly are twisted off fixed bolt, then rotate and open first clamp and second clamp, take out from the clamp and place the groove of clamp assembly, then, reverse rotation connecting pipe, make the slide of the elbow section of card block sliding groove back straight section, pull again connecting pipe, make card block slide out along card block sliding groove straight section, simultaneously, connecting pipe slides out along connecting pipe sliding groove, realize the separation of material cylinder and injection molding machine main part, convenient subsequent maintenance, overhaul etc. operation, and the dismounting material cylinder is simple and quick like this.

Description

Technical Field

[0001] This utility model relates to the field of working technology, and in particular to a leak-proof cylinder for semi-solid injection molding of magnesium alloy. Background Technology

[0002] Magnesium alloys, with their outstanding characteristics such as low density, high specific strength, and excellent electromagnetic shielding performance, have become a key alternative to traditional metal materials in the global manufacturing industry's trend towards lightweighting and low carbonization. They have shown broad application prospects in industries such as automobiles and 3C products. Semi-solid injection molding, as an important technology for magnesium alloy forming, precisely controls the rheological forming process of magnesium alloys in the solid-liquid two-phase region, allowing the material to achieve uniform filling in an ideal state of low viscosity and high solids content. This process significantly reduces porosity, greatly improves density, and breaks the limitation of single-piece weight, laying a solid technological foundation for the large-scale application of magnesium alloys.

[0003] In the semi-solid injection molding process, the barrel plays a crucial role in storing, heating, and conveying magnesium alloy materials. It is one of the core components that ensures the smooth implementation of the molding process. A stable, reliable, and easy-to-operate connection between the barrel and the injection molding machine plays a decisive role in ensuring the efficient operation of the entire molding system.

[0004] Early magnesium alloy semi-solid injection molding equipment attempted to connect the barrel to the injection molding machine by welding. Welding can ensure the connection's strength to a certain extent and reduce the risk of material leakage due to loose connection. However, the disadvantages of this connection method are also very obvious. The welding process is a permanent connection. Once the welding is completed, the barrel is tightly fixed to the injection molding machine, almost completely losing its separability. This means that throughout the entire service life of the equipment, if any problem occurs with the barrel, even some minor wear or local damage, the barrel cannot be disassembled and replaced separately. Instead, the entire part welded to the barrel must be cut off from the injection molding machine and then a new barrel must be welded and installed. This process is extremely difficult to operate, requiring professional welding technicians and large welding equipment, and it will cause a certain degree of damage to the original structure of the injection molding machine, seriously affecting the normal use and maintenance efficiency of the equipment. Utility Model Content

[0005] The purpose of this utility model is to at least solve one of the technical problems existing in the prior art, and to provide a leak-proof barrel for magnesium alloy semi-solid injection molding. This solves the problem that the barrel is tightly fixed to the injection molding machine, almost completely losing its separability. This means that throughout the entire service life of the equipment, if any problem occurs with the barrel, even just some minor wear or local damage, the barrel cannot be disassembled and replaced separately. Instead, the entire part welded to the barrel must be cut off from the injection molding machine and then a new barrel must be welded and installed. This process is extremely difficult to operate, requires professional welding technicians and large welding equipment, and will cause a certain degree of damage to the original structure of the injection molding machine, seriously affecting the normal use and maintenance efficiency of the equipment.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a leak-proof cylinder for semi-solid injection molding of magnesium alloy, comprising a mounting base, an injection molding machine body and a cylinder, wherein a clamping assembly is provided on the injection molding machine body;

[0007] The clamp assembly includes a connecting pipe, a first clamp, a second clamp, and a second feed pipe. The second feed pipe is fixedly installed on the upper outer wall of the injection molding machine body. A connecting pipe groove is opened on the upper surface of the second feed pipe. The lower outer wall of the connecting pipe is slidably connected to the inside of the connecting pipe groove. Two locking block grooves are opened inside the connecting pipe groove. A sealing ring is fixedly installed on the lower outer wall of the connecting pipe. Two locking blocks are fixedly connected to the lower outer wall of the connecting pipe.

[0008] The lower end of the connecting pipe has a clamp mounting groove, the upper end of the second feed pipe has the same clamp mounting groove, one end of the outer wall of the first clamp is fixedly connected to a fixing block, one end of the outer wall of the first clamp is fixedly connected to a protrusion, one end of the outer wall of the second clamp is fixedly connected to the same protrusion, and the outer wall of the protrusion on the second clamp is threaded with two fixing bolts.

[0009] The main body of the injection molding machine is fixedly mounted on the upper surface of the mounting base.

[0010] Preferably, the interior of the second feed pipe is connected to the interior of the injection molding machine body, and the connecting pipe is fixedly installed on the outer wall of the lower end of the barrel;

[0011] The interior of the material cylinder is connected to the interior of the connecting pipe.

[0012] Preferably, both of the card block grooves are L-shaped, and the outer wall of the sealing ring is in contact with the inner wall of the second feed pipe;

[0013] The outer walls of the two card blocks are slidably connected to the interior of the corresponding card block grooves.

[0014] Preferably, the two clamp mounting slots cooperate to form a clamp placement slot, and the inner wall of the groove at one end of the second clamp is rotatably connected to the outer wall of the fixing block;

[0015] The first clamp and the second clamp are fitted together and placed inside the clamp placement groove formed by the clamp mounting groove on the connecting pipe and the clamp mounting groove on the second feed pipe.

[0016] Preferably, the two fixing bolts and the two grooves on the outer wall of the protrusion on the first clamp cooperate with each other to connect the first clamp and the second clamp.

[0017] Preferably, the main body of the injection molding machine is fixedly mounted on the upper surface of the mounting base, and a first feed pipe is fixedly mounted on the upper surface of the barrel, the interior of the first feed pipe being in communication with the interior of the barrel.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] 1. This anti-leakage cylinder for magnesium alloy semi-solid injection molding separates the first and second clamps by first unscrewing the fixing bolts in the clamp assembly, then rotating to open the first and second clamps and removing the clamp assembly from the clamp placement groove. Next, the connecting pipe is rotated in the opposite direction to make the clamp block slide back to the straight section along the bend of the clamp block slide groove. Then, the connecting pipe is pulled to make the clamp block slide out along the straight section of the clamp block slide groove, and at the same time, the connecting pipe slides out along the connecting pipe slide groove, thus separating the cylinder from the main body of the injection molding machine. This facilitates subsequent maintenance and repair operations. This method of disassembling the cylinder is simple and quick, avoiding the need for workers to disassemble the cylinder and cause some damage to the original structure of the injection molding machine. Attached Figure Description

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0021] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0022] Figure 2 This is a schematic diagram of the external structure of the material cylinder of this utility model;

[0023] Figure 3 This utility model Figure 2 Enlarged view of the external structure of the first clamp at point A;

[0024] Figure 4 This is a schematic diagram of the external structure of the first clamp of this utility model.

[0025] Reference numerals in the attached drawings: 1. Mounting base; 2. Injection molding machine body; 3. Barrel; 4. First feed pipe; 5. Connecting pipe; 6. First clamp; 7. Protrusion; 8. Second clamp; 9. Second feed pipe; 10. Fixing block; 11. Fixing bolt; 12. Sealing ring; 13. Clamping block; 14. Connecting pipe groove; 15. Clamping block groove; 16. Clamping block mounting groove. Detailed Implementation

[0026] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0027] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional 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.

[0028] In the description of this utility model, terms such as greater than, less than, and exceeding are understood to exclude the stated number, while terms such as above, below, and within are understood to include the stated number. The use of terms like "first" and "second" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the quantity or sequence of the indicated technical features.

[0029] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0030] Please see Figure 1-4 This utility model provides a technical solution: a leak-proof cylinder for semi-solid injection molding of magnesium alloy, including a mounting base 1, an injection molding machine body 2 and a cylinder 3;

[0031] A clamping assembly is provided on the main body 2 of the injection molding machine;

[0032] The clamp assembly includes a connecting pipe 5, a first clamp 6, a second clamp 8, and a second feed pipe 9. The second feed pipe 9 is fixedly installed on the upper outer wall of the injection molding machine body 2, and its interior communicates with the interior of the injection molding machine body 2. The connecting pipe 5 is fixedly installed on the lower outer wall of the barrel 3, and its interior communicates with the interior of the connecting pipe 5. A connecting pipe groove 14 is provided on the upper surface of the second feed pipe 9, and the lower outer wall of the connecting pipe 5 is slidably connected to the interior of the connecting pipe groove 14. Two locking block grooves 15 are provided inside the connecting pipe groove 14, and both locking block grooves 15 are "L"-shaped. A sealing ring 12 is fixedly installed on the lower outer wall of the connecting pipe 5, and the outer wall of the sealing ring 12 contacts the inner wall of the second feed pipe 9. Two locking blocks 13 are fixedly connected to the lower outer wall of the connecting pipe 5, and the outer walls of the two locking blocks 13 are slidably connected to the interior of the corresponding locking block groove 15. The lower outer wall of the connecting pipe 5 is provided with a clamp mounting groove 16, and the upper outer wall of the second feed pipe 9 is provided with the same clamp mounting groove 16. The two clamp mounting grooves 16 cooperate with each other to form a clamp placement groove. One end of the outer wall of the first clamp 6 is fixedly connected to a fixing block 10. The inner wall of the groove at one end of the second clamp 8 is rotatably connected to the outer wall of the fixing block 10. The first clamp 6 and the second clamp 8 are fitted into the clamp placement groove formed by the clamp mounting groove 16 on the connecting pipe 5 and the clamp mounting groove 16 on the second feed pipe 9. One end of the outer wall of the first clamp 6 is fixedly connected to a protrusion 7, and one end of the outer wall of the second clamp 8 is fixedly connected to the same protrusion 7. Two fixing bolts 11 are threadedly connected to the outer wall of the protrusion 7 on the second clamp 8. The two fixing bolts 11 cooperate with the two grooves on the outer wall of the protrusion 7 on the first clamp 6 to connect the first clamp 6 and the second clamp 8.

[0033] The injection molding machine body 2 is fixedly installed on the upper surface of the mounting base 1, and the upper surface of the barrel 3 is fixedly installed with the first feed pipe 4, the interior of the first feed pipe 4 is connected to the interior of the barrel 3.

[0034] Furthermore, when using this device, first align the connecting pipe 5 at the lower end of the barrel 3 with the second feed pipe 9 on the injection molding machine body 2, so that the outer wall of the lower end of the connecting pipe 5 is aligned with the connecting pipe groove 14 on the upper surface of the second feed pipe 9. Then push the connecting pipe 5 so that it slides into the connecting pipe groove 14. During this process, the locking block 13 on the outer wall of the lower end of the connecting pipe 5 slides into the locking block groove 15 on the second feed pipe 9. The locking block 13 first slides along the straight section of the locking block groove 15. After reaching the appropriate position, rotate the connecting pipe 5 or the barrel 3 so that the locking block 13 slides along the curved section of the locking block groove 15, thereby realizing the locking block 13. To prevent detachment and ensure proper positioning, the sealing ring 12 at the lower end of the connecting pipe 5 is in close contact with the inner wall of the second feed pipe 9, initially enhancing the seal. Next, the first clamp 6 and the second clamp 8 are rotated open via the fixing block 10. Then, they are fitted onto the connecting pipe 5 and the second feed pipe 9, with the clamp mounting groove 16 placed in the groove. The first clamp 6 and the second clamp 8 are then rotated to align their protrusions 7. The fixing bolt 11 is passed through the protrusion 7 of the second clamp 8 and screwed into the groove on the outer wall of the protrusion 7 of the first clamp 6. The fixing bolt 11 is then tightened, ensuring a tight connection between the first clamp 6 and the second clamp 8, thus connecting the connecting pipe 5 and the second feed pipe. 9. Securely fasten the connection to further enhance its sealing and stability, completing the connection and installation of the entire barrel and injection molding machine body. During magnesium alloy semi-solid injection molding, the magnesium alloy semi-solid raw material in barrel 3 is transported through connecting pipe 5 to the second feed pipe 9, and then enters the injection molding machine body 2. Because the connecting pipe 5 and the second feed pipe 9 are initially sealed by sealing ring 12, and further secured by anti-detachment positioning of clamping block 13 and the tightening of first clamp 6, second clamp 8, and fixing bolt 11, material leakage from the connection during transport is effectively prevented, ensuring stable and accurate entry of the material into the injection molding machine. The main body 2 performs the molding operation. When maintenance or replacement of the barrel 3, injection molding machine main body 2, etc., is required, first unscrew the fixing bolts 11 to separate the first clamp 6 and the second clamp 8. Then, rotate to open the first clamp 6 and the second clamp 8, and remove the clamp assembly from the clamp placement slot. Next, rotate the connecting pipe 5 in the opposite direction to allow the clamp block 13 to slide back along the bend of the clamp block slide groove 15 to the straight section. Then, pull the connecting pipe 5 to allow the clamp block 13 to slide out along the straight section of the clamp block slide groove 15. Simultaneously, the connecting pipe 5 slides out along the connecting pipe slide groove 14, thus separating the barrel 3 from the injection molding machine main body 2, facilitating subsequent maintenance and repair operations.

[0035] First, unscrew the fixing bolt 11 in the clamp assembly to separate the first clamp 6 and the second clamp 8. Then, rotate to open the first clamp 6 and the second clamp 8, and remove the clamp assembly from the clamp placement slot. Next, rotate the connecting pipe 5 in the opposite direction to make the clamp block 13 slide back to the straight section along the bend section of the clamp block slide groove 15. Then, pull the connecting pipe 5 to make the clamp block 13 slide out along the straight section of the clamp block slide groove 15. At the same time, the connecting pipe 5 slides out along the connecting pipe slide groove 14, thus separating the barrel 3 from the injection molding machine body 2. This facilitates subsequent maintenance, repair and other operations. This method of disassembling the barrel 3 is simple and quick, avoiding the need for workers to disassemble the barrel 3, which would cause some damage to the original structure of the injection molding machine body 2.

[0036] Structural Description: Mounting base 1: As the basic support component of the entire device, it provides an installation platform for the injection molding machine body 2, barrel 3, etc., and plays a role in bearing and positioning, ensuring the stability of each component after installation, so that subsequent clamping components can work properly.

[0037] Injection molding machine body 2: It is the core execution component for semi-solid injection molding of magnesium alloy, used to complete the injection molding operation of magnesium alloy. The upper outer wall is equipped with a second feed pipe 9, which is connected to the material cylinder 3 through the second feed pipe 9 to receive the material conveyed by the material cylinder 3. It has a corresponding molding chamber inside, which can process the input magnesium alloy raw material into the required product.

[0038] Cylinder 3: Used to store semi-solid magnesium alloy raw materials, providing a material source for the main body 2 of the injection molding machine. A connecting pipe 5 is fixedly installed on the lower outer wall, and the connecting pipe 5 is connected to the second feed pipe 9 to realize the conveying of materials from the cylinder 3 to the main body 2 of the injection molding machine. Its interior is hollow to accommodate the raw materials.

[0039] Connecting pipe 5: It is the connecting bridge between the material cylinder 3 and the second feed pipe 9. It is fixedly installed on the lower outer wall of the material cylinder 3 and communicates with the inside of the material cylinder 3. It is used to transport materials. The lower outer wall is slidably connected to the connecting pipe groove 14 on the second feed pipe 9 to achieve initial connection and positioning. The lower outer wall is fixedly installed with a sealing ring 12 to enhance the sealing of the connection and prevent material leakage. Two clamps 13 are fixedly connected to the lower outer wall and cooperate with the clamp groove 15 on the second feed pipe 9 to further position and prevent detachment. The lower outer wall is provided with a clamp installation groove 16, which cooperates with the clamp installation groove 16 on the second feed pipe 9 to provide installation space for the first clamp 6 and the second clamp 8.

[0040] First clamp 6: Used to cooperate with second clamp 8 to fasten connecting pipe 5 and second feed pipe 9. One end of the outer wall is fixedly connected to fixing block 10, which is rotatably connected to the inner wall of the groove at one end of second clamp 8, so that first clamp 6 and second clamp 8 can rotate relative to each other, which is convenient for installation and disassembly. One end of the outer wall is fixedly connected to protrusion 7, which cooperates with protrusion 7 on second clamp 8. The connection and fastening of the two are achieved by fixing bolt 11, thereby firmly clamping connecting pipe 5 and second feed pipe 9, enhancing the sealing and stability of the connection.

[0041] The second clamp 8 works in conjunction with the first clamp 6, fitting into the clamp placement groove of the connecting pipe 5 and the second feed pipe 9. One end of the groove is rotatably connected to the fixing block 10 of the first clamp 6, and the other end is fixedly connected to the protrusion 7. The outer wall of the protrusion 7 is threadedly connected to two fixing bolts 11. Through the cooperation of the fixing bolts 11 and the protrusion 7 on the first clamp 6, the connection and fastening of the first clamp 6 and the second clamp 8 are realized, thereby tightly fixing the connecting pipe 5 and the second feed pipe 9.

[0042] The second feed pipe 9 is fixedly installed on the upper outer wall of the injection molding machine body 2 and communicates with the interior of the injection molding machine body 2. It is used to receive the material conveyed by the material cylinder 3 through the connecting pipe 5. The upper surface is provided with a connecting pipe groove 14, which slides and connects with the lower outer wall of the connecting pipe 5 to achieve a preliminary connection. The interior is provided with two "L"-shaped locking block grooves 15, which cooperate with the locking blocks 13 on the connecting pipe 5 for connection positioning and anti-detachment. The upper outer wall is provided with a clamp installation groove 16, which cooperates with the clamp installation groove 16 on the connecting pipe 5 to form a clamp placement groove for installing the first clamp 6 and the second clamp 8.

[0043] Sealing ring 12: It is fixedly installed on the outer wall of the lower end of the connecting pipe 5. The outer wall is in contact with the inner wall of the second feed pipe 9. It uses its own elasticity and sealing to fill the gap between the connecting pipe 5 and the second feed pipe 9, preventing the magnesium alloy semi-solid material from leaking from the connection during the conveying process and improving the overall sealing and leak-proof effect.

[0044] Locking Block 13: There are two locking blocks 13, which are fixedly connected to the outer wall of the lower end of the connecting pipe 5. The outer wall is slidably connected to the inside of the corresponding locking block groove 15. When the connecting pipe 5 and the second feed pipe 9 are installed, the locking blocks 13 slide along the locking block groove 15. Since the locking block groove 15 is "L" shaped, when the locking blocks 13 slide to the appropriate position, it can achieve anti-disengagement positioning, enhance the stability of the connection between the connecting pipe 5 and the second feed pipe 9, and prevent the two from easily separating.

[0045] Fixed block 10: It is fixedly connected to the outer wall of one end of the first clamp 6 and rotatably connected to the inner wall of the groove of one end of the second clamp 8, providing a rotatable connection point for the first clamp 6 and the second clamp 8, so that the two can rotate and open and close relative to each other, which facilitates the installation and disassembly of the clamp assembly on the connecting pipe 5 and the second feed pipe 9.

[0046] Protrusion 7: It is fixedly connected to one end of the outer wall of the first clamp 6 and the second clamp 8 respectively. The outer wall of the protrusion 7 on the second clamp 8 is threaded with the fixing bolt 11. Through the cooperation of the fixing bolt 11 and the protrusion 7 on the first clamp 6, the connection between the first clamp 6 and the second clamp 8 is realized, thereby clamping and fixing the connecting pipe 5 and the second feed pipe 9.

[0047] Fixed bolt 11: Threaded connection to the outer wall of the protrusion 7 on the second clamp 8, which mates with the groove on the outer wall of the protrusion 7 on the first clamp 6. When the fixed bolt 11 is tightened, the first clamp 6 and the second clamp 8 can be tightly connected, thereby enhancing the clamp assembly's fastening effect on the connecting pipe 5 and the second feed pipe 9, and ensuring the sealing and stability of the connection.

[0048] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A leak-proof barrel for semi-solid injection molding of magnesium alloy, installed on the main body (2) of an injection molding machine, comprising a mounting base (1) and a barrel (3), characterized in that: The injection molding machine body (2) is provided with a clamping assembly; The clamp assembly includes a connecting pipe (5), a first clamp (6), a second clamp (8), and a second feed pipe (9); the second feed pipe (9) is fixedly installed on the upper outer wall of the injection molding machine body (2), and a connecting pipe groove (14) is provided on the upper surface of the second feed pipe (9). The lower outer wall of the connecting pipe (5) is slidably connected to the inside of the connecting pipe groove (14). Two locking block grooves (15) are provided inside the connecting pipe groove (14). A sealing ring (12) is fixedly installed on the lower outer wall of the connecting pipe (5), and two locking blocks (13) are fixedly connected to the lower outer wall of the connecting pipe (5). Among them, the lower end of the connecting pipe (5) is provided with a clamp mounting groove (16), the upper end of the second feed pipe (9) is provided with the same clamp mounting groove (16), one end of the outer wall of the first clamp (6) is fixedly connected with a fixing block (10), one end of the outer wall of the first clamp (6) is fixedly connected with a protrusion (7), one end of the outer wall of the second clamp (8) is fixedly connected with the same protrusion (7), and the outer wall of the protrusion (7) on the second clamp (8) is threaded with two fixing bolts (11). The main body (2) of the injection molding machine is fixedly installed on the upper surface of the mounting base (1).

2. The anti-leakage cylinder for semi-solid injection molding of magnesium alloy according to claim 1, characterized in that: The interior of the second feed pipe (9) is connected to the interior of the injection molding machine body (2), and the connecting pipe (5) is fixedly installed on the outer wall of the lower end of the barrel (3); The interior of the material cylinder (3) is connected to the interior of the connecting pipe (5).

3. The anti-leakage cylinder for semi-solid injection molding of magnesium alloy according to claim 1, characterized in that: Both of the aforementioned card block grooves (15) are L-shaped, and the outer wall of the sealing ring (12) is in contact with the inner wall of the second feed pipe (9); The outer walls of the two card blocks (13) are slidably connected to the interior of the corresponding card block groove (15).

4. The anti-leakage cylinder for semi-solid injection molding of magnesium alloy according to claim 1, characterized in that: The two clamp mounting slots (16) cooperate with each other to form a clamp placement slot, and the inner wall of the groove at one end of the second clamp (8) is rotatably connected to the outer wall of the fixing block (10); The first clamp (6) and the second clamp (8) are fitted together and sleeved inside the clamp mounting groove (16) on the connecting pipe (5) and the clamp mounting groove (16) on the second feed pipe (9) to form the clamp placement groove.

5. The anti-leakage cylinder for semi-solid injection molding of magnesium alloy according to claim 1, characterized in that: The two fixing bolts (11) and the two grooves on the outer wall of the protrusion (7) on the first clamp (6) cooperate with each other to connect the first clamp (6) and the second clamp (8).

6. The anti-leakage cylinder for semi-solid injection molding of magnesium alloy according to claim 1, characterized in that: The main body (2) of the injection molding machine is fixedly installed on the upper surface of the mounting base (1), and the upper surface of the barrel (3) is fixedly installed with the first feed pipe (4), the interior of the first feed pipe (4) is connected to the interior of the barrel (3).

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