Injection molding shaping machine for powder metal processing

Abstract

The utility model relates to the technical field of manufacturing, and discloses an injection molding shaper for powder metal processing, which comprises a worktable I, a worktable II arranged on one side of the worktable I, an injection molding machine arranged at the top end of the worktable I, a mounting frame and a sliding assembly arranged at the top end of the worktable II, a sliding frame arranged on one side of the mounting frame, and two groups of shaping molds slidably arranged at one end of the sliding frame. The water inlet assembly comprises a cold water pump box, two sets of cooling water outlet pipes are arranged on one side of the cold water pump box, the other ends of the cooling water outlet pipes are connected with a water pump, and the water inlet end of the water pump is connected with a cooling water inlet pipe. According to the injection molding shaping machine for powder metal machining, the two sets of molds are used for circularly injecting and cooling, the cooling efficiency is improved, and the injection success probability is improved.

Description

Technical Field

[0001] This application relates to the field of manufacturing technology, and in particular to an injection molding and shaping machine for powder metal processing. Background Art

[0002] Metal Powder Injection Molding Technology (abbreviated as MIM) is a new type of powder metallurgy near-net shaping technology formed by introducing modern plastic injection molding technology into the field of powder metallurgy. Using molds, preforms can be injection molded and sintered to quickly manufacture high-density, high-precision, three-dimensional complex-shaped structural parts. It can quickly and accurately materialize design ideas into products with certain structural and functional characteristics and directly mass-produce parts, which is a new revolution in the manufacturing technology industry.

[0003] When the existing mold is forming a green body, since the mold is a set, during the cooling process, the powder in the screw is still being continuously heated, which easily leads to too high a temperature and causes defects such as short shots and weld lines in the next injection molding, increasing resource consumption. Summary of the Utility Model

[0004] To solve the problems, this application provides an injection molding and shaping machine for powder metal processing.

[0005] The injection molding and shaping machine for powder metal processing provided by this application adopts the following technical solutions:

[0006] An injection molding and shaping machine for powder metal processing includes a first workbench. A second workbench is provided on one side of the first workbench. An injection molding machine is provided at the top of the first workbench. An installation frame and a sliding component are provided at the top of the second workbench. A sliding frame is provided on one side of the installation frame. Two sets of shaping molds are slidably provided at one end of the sliding frame;

[0007] The sliding assembly includes a first fixed frame and a second fixed frame. On one side of the first fixed frame, there are two groups of motors. The output end of the motor is connected with a sliding lead screw. The other end of the sliding lead screw is rotatably connected to the second fixed frame. One end of the sliding lead screw is provided with a sliding block. On one side of the sliding block, there is a cylinder box. Inside the cylinder box, there are a first cylinder and a second cylinder. The output end of the first cylinder penetrates through the sliding block and is connected with a fixed mold. The output end of the second cylinder penetrates through the sliding block and extends into the fixed mold. On both sides of the mounting frame, there are water inlet assemblies. On both sides of the first workbench, there are cooling water tanks. The water inlet assembly includes a cold water pump box. On one side of the cold water pump box, there are two groups of cooling outlet pipes. The other end of the cooling outlet pipe is connected with a water pump. The water inlet end of the water pump is connected with a cooling inlet pipe. The other end of the cooling inlet pipe is connected with the cooling water tank. The bottom end of the cold water pump box is connected with a buffer tank. One end of the buffer tank is provided with two groups of first drain pipes. One end of the buffer tank is provided with a second drain pipe. The other end of the second drain pipe is connected with the cooling water tank.

[0008] Preferably, on one side of the first fixed frame, there is a sliding track, and one end of the sliding track is connected with the second fixed frame.

[0009] Preferably, cold water pipes are arranged inside the shaping mold and the fixed mold, and electric valves are arranged at both ends of the cold water pipes.

[0010] Preferably, positioning pins are arranged on the surface of the shaping mold, injection ports are arranged inside the shaping mold, and limiting grooves are arranged on the surface of the fixed mold.

[0011] Preferably, a heat dissipation port is arranged on one side of the buffer tank.

[0012] Preferably, the inlet and outlet of the cold water pipe are horizontally connected with the cooling outlet pipe and the first drain pipe.

[0013] In summary, the present application includes the following beneficial technical effects:

[0014] There are positioning pins on the shaping mold, and there are also positioning pins on the fixed mold. Cylinder 1 pushes the fixed mold to connect and fit the positioning pins on the fixed mold with those on the shaping mold. After the fitting, the metal powder is heated by the rotation of the screw of the injection molding machine to turn the metal powder into liquid. A syringe is installed at the center of the mounting rack and is pushed through the syringe to the injection port in the shaping mold for injection molding. The molds are divided into two groups. After one group of molds has completed injection, the motor rotates to drive the sliding screw rod, causing the fixed mold on the sliding block to move. The fixed mold drives the shaping mold to move to the water inlet assembly, connecting the water inlet of the cold water pipes in the fixed mold and the shaping mold to the cooling water outlet pipe, and the water outlet to Drain Pipe 1. The electric valve automatically opens, and the water pump pumps the cooling water tank into the cold water pipe for cooling. The circulated cooling water is discharged into the buffer tank through Drain Pipe 1. The hot water in the buffer tank is preliminarily cooled and then discharged into the cooling water tank through Drain Pipe 2, realizing the recycling of water. Since the molds are divided into two groups, while one group of molds is being cooled, the other group of molds can carry out a new round of injection. The two groups of molds are cyclically injected and cooled, improving the cooling efficiency and the probability of successful injection. Description of the Drawings

[0015] Figure 1 is the first - perspective three - dimensional structure schematic diagram of the application embodiment;

[0016] Figure 2 is the second - perspective three - dimensional structure schematic diagram of the application embodiment;

[0017] Figure 3 is the three - dimensional structure schematic diagram of the sliding component of the application embodiment;

[0018] Figure 4 is the three - dimensional structure schematic diagram of the water inlet component of the application embodiment;

[0019] Figure 5 is the three - dimensional structure schematic diagram of the sliding rack of the application embodiment.

[0020] Description of the Reference Numerals: 1, Workbench 1; 2, Workbench 2; 3, Injection Molding Machine; 4, Mounting Rack; 5, Sliding Component; 6, Sliding Rack; 7, Shaping Mold; 8, Fixed Mold; 9, Water Inlet Component; 10, Cooling Water Tank; 11, Cold Water Pipe; 12, Electric Valve; 13, Positioning Pin; 14, Injection Port; 15, Slide Rail; 51, Fixing Bracket 1; 52, Fixing Bracket 2; 53, Motor; 54, Sliding Screw Rod; 55, Sliding Block; 56, Cylinder Box; 57, Cylinder 1; 58, Cylinder 2; 91, Cold Water Pump Box; 92, Buffer Tank; 93, Cooling Water Outlet Pipe; 94, Water Pump; 95, Cooling Water Inlet Pipe; 96, Drain Pipe 1; 97, Drain Pipe 2; 98, Heat Dissipation Port. Detailed Embodiment

[0021] The following is combined with the attached Figures 1-5Further details of this application are provided below.

[0022] An injection molding and shaping machine for powder metal processing is disclosed in an embodiment of this application. Referring to Figures 1-5 , an injection molding and shaping machine for powder metal processing includes a first workbench 1. A second workbench 2 is provided on one side of the first workbench 1. An injection molding machine 3 is provided at the top of the first workbench 1. An installation frame 4 and a sliding assembly 5 are provided at the top of the second workbench 2. A sliding frame 6 is provided on one side of the installation frame 4. Two sets of shaping molds 7 are slidably provided at one end of the sliding frame 6;

[0023] The sliding assembly 5 includes a first fixed frame 51 and a second fixed frame 52. Two sets of motors 53 are provided on one side of the first fixed frame 51. The output end of the motor 53 is connected to a sliding lead screw 54. The other end of the sliding lead screw 54 is rotatably connected to the second fixed frame 52. A sliding block 55 is provided at one end of the sliding lead screw 54. A cylinder box 56 is provided on one side of the sliding block 55. A first cylinder 57 and a second cylinder 58 are provided inside the cylinder box 56. The output end of the first cylinder 57 penetrates through the sliding block 55 and is connected to a fixed mold 8. The output end of the second cylinder 58 penetrates through the sliding block 55 and extends into the fixed mold 8. Water inlet assemblies 9 are provided on both sides of the installation frame 4. Cooling water tanks 10 are provided on both sides of the first workbench 1. The water inlet assembly 9 includes a cold water pump box 91. Two sets of cooling outlet pipes 93 are provided on one side of the cold water pump box 91. The other end of the cooling outlet pipe 93 is connected to a water pump 94. The water inlet end of the water pump 94 is connected to a cooling inlet pipe 95. The other end of the cooling inlet pipe 95 is connected to the cooling water tank 10. The bottom end of the cold water pump box 91 is connected to a buffer tank 92. Two sets of first drain pipes 96 are provided at one end of the buffer tank 92. A second drain pipe 97 is provided at one end of the buffer tank 92. The other end of the second drain pipe 97 is connected to the cooling water tank 10;

[0024] By adopting the above technical solution, after the injection molding machine 3 injects metal into one set of molds, the sliding lead screw 54 drives the fixed mold 8 to move to the water inlet assembly 9 to cool and shape the molds. The other set of molds moves to the syringe position for continuous injection molding. The two sets of molds are alternately injected and cooled, improving the injection molding efficiency and the injection molding success rate.

[0025] Referring to Figure 3 , a sliding track 15 is provided on one side of the first fixed frame 51. One end of the sliding track 15 is connected to the second fixed frame 52;

[0026] By adopting the above technical solution, the sliding block 55 is assisted in moving by the sliding track 15.

[0027] Referring to Figure 3 and 5 , cold water pipes 11 are provided inside the shaping molds 7 and the fixed mold 8. Electric valves 12 are provided at both ends of the cold water pipes 11;

[0028] By adopting the above technical solution, the heated mold is cooled by the cooling water pipe 11, and the electric valve 12 can automatically control the delivery of the cooling water.

[0029] Referring to the figure, the surface of the shaping mold 7 is provided with positioning pins 13, the inside of the shaping mold 7 is provided with injection ports 14, and the surface of the fixed mold 8 is provided with limit grooves;

[0030] By adopting the above technical solution, the positioning pins 13 on the shaping mold 7 and the fixed mold 8 can connect and fasten the two molds. After the molds are connected and fastened, the injection device of the injection molding machine 3 injects and forms through the injection port 14.

[0031] Referring to Figure 4 , one side of the buffer water tank 92 is provided with a heat dissipation port 98;

[0032] By adopting the above technical solution, the heat dissipation port 98 can preliminarily cool the heated cooling water.

[0033] Referring to Figure 1 and 2 , the inlet and outlet of the cold water pipe 11 are horizontally connected to the cooling water outlet pipe 93 and the drain pipe 96;

[0034] By adopting the above technical solution, the inlet and outlet of the cold water pipe 11 can be connected to the cooling water outlet pipe 93 and the drain pipe 96, and water can be transported and drained.

[0035] The implementation principle of an injection molding and shaping machine for powder metal processing in the embodiment of the present application is as follows: there are positioning pins 13 on the shaping mold 7, there are positioning pins 13 on the fixed mold 8, the cylinder 57 pushes the fixed mold 8, so that the positioning pins 13 on the fixed mold 8 are connected and fastened to the positioning pins 13 on the shaping mold 7. After fastening, the metal powder is heated by the spiral rotation of the injection molding machine 3, so that the metal powder turns into a liquid. A syringe is installed in the center of the mounting frame 4 and is pushed through the syringe to the injection port 14 in the shaping mold 7 for injection molding.

[0036] The mold is divided into two groups. After one group of molds finishes injection, the motor 53 rotates to drive the sliding lead screw 54, causing the fixed mold 8 on the sliding block 55 to move. The fixed mold 8 drives the shaping mold 7 to move to the water inlet assembly 9, connecting the water inlets of the cold water pipes 11 in the fixed mold 8 and the shaping mold 7 to the cooling water outlet pipe 93, and the water outlets to the first drain pipe 96. The electric valve 12 automatically opens, and the water pump 94 pumps the cooling water tank 10 into the cold water pipes 11 for cooling. The circulated cooling water is discharged into the buffer tank 92 through the first drain pipe 96. The hot water in the buffer tank 92 is preliminarily cooled and then discharged into the cooling water tank 10 through the second drain pipe 97, realizing the recycling of water. Since the mold is divided into two groups, when one group of molds is being cooled, the other group of molds can perform a new round of injection. The two groups of molds are injected and cooled in a cycle, improving the cooling efficiency and the probability of successful injection.

[0037] Finally, several points should be noted: First, in the description of this application, it should be noted that unless otherwise specified and limited, the terms "installation", "connection", and "coupling" should be understood in a broad sense. It can be a mechanical connection or an electrical connection, or it can be the internal connection of two components. It can be directly connected. The terms "upper", "lower", "left", "right", etc. are only used to represent the relative position relationship. When the absolute position of the described object changes, the relative position relationship may change;

[0038] Second: In the attached drawings of the disclosed embodiments of the present utility model, only the structures related to the disclosed embodiments are involved. For other structures, reference can be made to the general design. Without conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0039] Finally: The above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

[0040] The above are all the preferred embodiments of this application, and do not limit the protection scope of this application accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of this application shall be covered within the protection scope of this application.

Claims

1. An injection molding machine for powder metal processing, comprising a workbench (1), characterized in that: A workbench 2 (2) is provided on one side of the workbench 1 (1); an injection molding machine (3) is provided on the top of the workbench 1 (1); a mounting frame (4) and a sliding assembly (5) are provided on the top of the workbench 2 (2); a sliding frame (6) is provided on one side of the mounting frame (4); and two sets of molding molds (7) are slidably provided on one end of the sliding frame (6); The sliding assembly (5) comprises a fixed frame 1 (51) and a fixed frame 2 (52). Two groups of motors (53) are arranged on one side of the fixed frame 1 (51). The output end of the motor (53) is connected to a sliding screw (54). The other end of the sliding screw (54) is rotatably connected to the fixed frame 2 (52). A sliding block (55) is arranged on one end of the sliding screw (54). A cylinder box (56) is arranged on one side of the sliding block (55). A cylinder 1 (57) and a cylinder 2 (58) are arranged inside the cylinder box (56). The output end of the cylinder 1 (57) passes through the sliding block (55) and is connected to a fixed mold (8). The output end of the cylinder 2 (58) passes through the sliding block (55) and extends to the inside of the fixed mold (8). The mounting frame (4) Water inlet components (9) are provided on both sides. Cooling water tanks (10) are provided on both sides of the workbench (1). The water inlet component (9) comprises a cold water pump box (91). Two groups of cooling water outlet pipes (93) are provided on one side of the cold water pump box (91). The other end of the cooling water outlet pipe (93) is connected to a water pump (94). The water inlet end of the water pump (94) is connected to a cooling water inlet pipe (95). The other end of the cooling water inlet pipe (95) is connected to the cooling water tank (10). The bottom end of the cold water pump box (91) is connected to a buffer water tank (92). Two groups of drain pipes (96) are provided at one end of the buffer water tank (92). Drain pipe (97) is provided at one end of the buffer water tank (92). The other end of the drain pipe (97) is connected to the cooling water tank (10).

2. The powder metal processing injection molding machine according to claim 1, characterized in that: A slide track (15) is provided on one side of the fixing frame 1 (51), and one end of the slide track (15) is connected to the fixing frame 2 (52).

3. The powder metal processing injection molding machine according to claim 1, characterized in that: The shaping mold (7) and the fixed mold (8) are provided with cold water pipes (11) inside, and both ends of the cold water pipes (11) are provided with electric valves (12).

4. The powder metal processing injection molding machine according to claim 3, characterized in that: The surface of the shaping mold (7) is provided with a positioning pin (13), the interior of the shaping mold (7) is provided with an injection port (14), and the surface of the fixed mold (8) is provided with a limiting groove.

5. The powder metal processing injection molding machine according to claim 1, characterized in that: A heat dissipation port (98) is provided on one side of the buffer water tank (92).

6. The powder metal processing injection molding machine according to claim 3, characterized in that: The inlet and outlet of the cold water pipeline (11) are horizontally connected to the cooling water outlet pipe (93) and the drain pipe (96).

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