Feeding barrel of semi-solid die-casting machine

Abstract

The utility model provides a feeding cylinder of a semi-solid die-casting machine, which belongs to the field of semi-solid die-casting machines and comprises a cylinder body, a feeding port is arranged on the outer wall of the cylinder body, a discharging port is arranged at one end of the cylinder body, and a heating channel and a cooling channel are respectively arranged in the wall of the cylinder body. A plurality of thermocouple sensors are fixedly connected to the side wall, close to the axis of the barrel, of the cooling channel and are in electric signal connection with external display equipment. By means of the feed port, the discharge port, the heating channel, the cooling channel and the thermocouple sensor, materials are added into the barrel through the feed port during use, the thermocouple sensor monitors the temperature in the barrel in real time at the moment, heat conduction oil is injected into the heating channel when the temperature of the materials is low, and heat conduction oil is injected into the cooling channel when the temperature is high. And heat conduction oil in the heating channel is pumped out, and cooling water is introduced into the cooling channel, so that the risk of deformation or cracking of the wall of the barrel is reduced.

Description

Technical Field

[0001] This utility model relates to the field of semi-solid die casting machines, and more specifically, to a feed cylinder for a semi-solid die casting machine. Background Technology

[0002] Semi-solid die casting machines are metal forming equipment that lies between liquid and solid states. Their core technology is to use semi-solid slurry of metal alloys for high-pressure injection molding. By precisely controlling the metal temperature to the solid-liquid two-phase region, the metal slurry has both a solid fixed shape and can flow under slight external force, thereby pressing out high-precision, high-performance complex parts.

[0003] A search revealed that Chinese Patent Publication No. CN221312444U discloses "a rapidly cooling semi-solid die-casting feed cylinder, belonging to the field of feed cylinder technology, including a feed cylinder body, in which heating pipes and cooling pipes are fixedly connected, the heating pipes and cooling pipes are staggered within the feed cylinder body, and both the heating pipes and cooling pipes are spiral in shape. A slurry inlet is provided on the surface of the feed cylinder body, and a discharge outlet is provided on one side of the feed cylinder body. The spiral shape of the heating pipes and cooling pipes fixed to the inner wall of the feed cylinder body increases the length of the heating and cooling pipes inside the feed cylinder body, replacing the straight-tube heating and cooling method, thereby reducing the blind zone of heating and cooling, ensuring uniform heating of the slurry, and ensuring uniform cooling of the cylinder. The entire device has a reasonable structure, is easy to use, and is highly practical." However, it still has the following drawbacks:

[0004] The feed cylinder is cooled by introducing cooling water into the cooling pipe during use. However, the feed cylinder lacks a device for real-time temperature monitoring, which makes it difficult for workers to know when to introduce cooling water, thus affecting the cooling effect. Therefore, a semi-solid die-casting machine feed cylinder is proposed. Utility Model Content

[0005] The purpose of this utility model is to address the problem that in a current semi-solid die-casting machine, the feed cylinder is cooled by introducing cooling water into the cooling pipe, but the feed cylinder lacks a device for real-time temperature monitoring, which leads to workers not knowing when to introduce cooling water, thus affecting the cooling effect.

[0006] To achieve the above-mentioned objectives, this utility model provides the following technical solution:

[0007] The feed cylinder of the semi-solid die-casting machine is used to improve the above problems.

[0008] The present invention is as follows: it includes a cylinder, an inlet is provided on the outer wall of the cylinder, a discharge port is provided at one end of the cylinder, a heating channel and a cooling channel are respectively provided inside the cylinder, and a plurality of thermocouple sensors are fixedly connected to the side wall of the cooling channel near the axis of the cylinder, and the thermocouple sensors are electrically connected to an external display device.

[0009] As a preferred technical solution of this utility model, a piston is provided at the end of the cylinder away from the discharge port. The piston is slidably connected to the cylinder and is controlled by an external hydraulic system.

[0010] As a preferred technical solution of this utility model, the material of the cylinder is a high thermal stability material, the material composition of the cylinder contains tungsten and the red hardness is ≥HRC45, and the surface of the cylinder is treated with glow discharge ion nitriding.

[0011] As a preferred technical solution of this utility model, a heat-resistant layer is provided on the inner wall of the cylinder, the material of the heat-resistant layer is heat-resistant steel, and the outer wall of the piston is tightly fitted with the inner wall of the heat-resistant layer.

[0012] As a preferred technical solution of this utility model, an oil outlet pipe and an oil inlet pipe are respectively provided at the top and bottom of the cylinder, and the oil outlet pipe and the oil inlet pipe are respectively connected to both ends of the heating channel.

[0013] As a preferred technical solution of this utility model, a water outlet pipe and a water inlet pipe are respectively provided at the top and bottom of the cylinder, and the water outlet pipe and the water inlet pipe are respectively connected to both ends of the cooling channel.

[0014] As a preferred technical solution of this utility model, the heating channel and the cooling channel are both spring-shaped and arranged in a double-helix staggered pattern.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] 1. With the addition of a feed inlet, discharge outlet, heating channel, cooling channel, and thermocouple sensors, materials are added to the cylinder through the feed inlet during use. The thermocouple sensors monitor the internal temperature of the cylinder in real time. When the material temperature is low, heat transfer oil is injected into the heating channel to prevent the material from clumping due to excessively low internal temperature. When the temperature is high, the heat transfer oil in the heating channel is extracted, and cooling water is introduced into the cooling channel to reduce the risk of cylinder wall deformation or cracking, thus significantly improving the service life of the cylinder. The thermocouple sensors also allow workers to easily monitor the internal temperature of the cylinder in real time.

[0017] 2. By using the piston, the piston is connected to the external hydraulic system during use, which facilitates the pushing of materials inside the cylinder into the mold, avoiding manual labor and preventing worker injuries. Attached Figure Description

[0018] Figure 1 A schematic diagram of the structure of the feed cylinder of the semi-solid die-casting machine provided by this utility model;

[0019] Figure 2 Left view of the feed cylinder of the semi-solid die-casting machine provided by this utility model;

[0020] Figure 3 The semi-solid die-casting machine feed cylinder provided by this utility model Figure 2 A three-dimensional cross-sectional view at point AA;

[0021] Figure 4 This utility model provides a schematic diagram of the structure of the oil inlet pipe and water inlet pipe of the semi-solid die casting machine feed cylinder.

[0022] Figure 5 The semi-solid die-casting machine feed cylinder provided by this utility model Figure 3 Enlarged view of point A in the middle.

[0023] The image shows:

[0024] 1. Cylinder; 2. Feed inlet; 3. Discharge outlet; 4. Heating channel; 5. Cooling channel; 6. Thermocouple sensor; 7. Piston; 8. Heat-resistant layer; 9. Oil outlet pipe; 10. Oil inlet pipe; 11. Water outlet pipe; 12. Water inlet pipe. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model.

[0026] Therefore, the following detailed description of the embodiments of this utility model is not intended to limit the scope of the claimed utility model, but merely to illustrate some embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0027] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0028] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0029] like Figure 1-5As shown, this embodiment proposes a semi-solid die-casting machine feed cylinder, including a cylinder body 1. A feed inlet 2 is provided on the outer wall of the cylinder body 1, and a discharge outlet 3 is provided at one end of the cylinder body 1. Heating channels 4 and cooling channels 5 are respectively provided inside the cylinder body 1. Several thermocouple sensors 6 are fixedly connected to the side wall of the cooling channel 5 near the axis of the cylinder body 1, and the thermocouple sensors 6 are electrically connected to an external display device. In use, the thermocouple sensors 6 are connected to the external display device. A flange boss is fixedly connected to the outer wall of the cylinder body 1 near the discharge outlet 3. When using the cylinder body 1, material is injected into the cylinder body 1 through the feed inlet 2. At this time, the thermocouple sensors 6 monitor the temperature inside the cylinder body 1 in real time, and the temperature data is displayed on the external display device. The worker decides whether to heat or cool the cylinder body 1 based on the displayed temperature data, thereby improving the accuracy of mold production.

[0030] like Figure 3 As shown, a piston 7 is installed at the end of the cylinder 1 away from the discharge port 3. The piston 7 is slidably connected to the cylinder 1 and is controlled by an external hydraulic system. In use, the external hydraulic system controls the piston 7 to move to the discharge port 3, thereby automatically pushing the material into the mold cavity.

[0031] like Figure 1 As shown, the material of cylinder 1 is a high thermal stability material. The material composition of cylinder 1 includes tungsten and has a red hardness ≥ HRC45. The surface of cylinder 1 is treated with glow discharge ion nitriding. The tungsten steel matrix has a hardness of 89-95 HRA, which can resist long-term erosion of semi-solid slurry (containing solid particles). The red hardness ≥ HRC45 (maintains hardness at 600℃) avoids slurry adhesion or deformation of cylinder 1 wall at high temperatures. Nitriding treatment can reduce the coefficient of friction by 30% and reduce resistance fluctuations during slurry injection.

[0032] like Figure 3 As shown, a heat-resistant layer 8 is provided on the inner wall of the cylinder 1. The heat-resistant layer 8 is made of heat-resistant steel, and the outer wall of the piston 7 is tightly fitted to the inner wall of the heat-resistant layer 8. Heat-resistant steel has good high-temperature resistance and good mechanical strength, and can maintain stable performance at high temperatures. In addition, heat-resistant steel also has certain corrosion resistance and wear resistance, making it suitable for contact with molten metal.

[0033] like Figure 3 As shown, an oil outlet pipe 9 and an oil inlet pipe 10 are respectively provided at the top and bottom of the cylinder 1, and the oil outlet pipe 9 and the oil inlet pipe 10 are respectively connected to both ends of the heating channel 4. The oil inlet pipe 10 and the oil outlet pipe 9 facilitate the entry and exit of heat transfer oil into and out of the heating channel 4.

[0034] like Figure 3As shown, a water outlet pipe 11 and a water inlet pipe 12 are respectively provided at the top and bottom of the cylinder 1, and the water outlet pipe 11 and the water inlet pipe 12 are connected to both ends of the cooling channel 5. The water inlet pipe 12 and the water outlet pipe 11 facilitate the entry of cooling water into the cooling channel 5.

[0035] like Figure 3 As shown, both the heating channel 4 and the cooling channel 5 are spring-shaped and arranged in a double-helix staggered pattern. By setting the heating channel 4 and cooling channel 5 in a spring-like shape, the contact area between the heat transfer oil and cooling water and the cylinder 1 can be increased, thereby improving the heating and cooling efficiency.

[0036] Specifically, when using the feed cylinder of this semi-solid die-casting machine: the cylinder 1 is connected to the external mold cavity through the flange boss, and the material is injected into the cylinder 1 through the feed port 2. At this time, the thermocouple sensor 6 monitors the temperature inside the cylinder 1 in real time, and the temperature data is displayed on the external display device. The operator decides whether to heat or cool the cylinder 1 based on the displayed temperature data. If heating is required, external heat transfer oil is injected into the heating channel 4 through the oil inlet pipe 10, which heats the inside of the cylinder 1. If cooling is required, the heat transfer oil inside the heating channel 4 is extracted, and then external cooling water is introduced into the cooling pipe through the water inlet pipe 12, which cools the inside of the cylinder 1 and improves the accuracy of mold production. Then, the piston 7 is controlled by the external hydraulic system to move to the lower feed port 3, thereby automatically pushing the material into the mold cavity.

[0037] All technical features in this embodiment can be freely combined according to actual needs.

[0038] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.

Claims

1. A feed cylinder for a semi-solid die-casting machine, comprising a cylinder body (1), characterized in that, The outer wall of the cylinder (1) is provided with a feed inlet (2), and one end of the cylinder (1) is provided with a discharge port (3). The inner wall of the cylinder (1) is provided with a heating channel (4) and a cooling channel (5). Several thermocouple sensors (6) are fixedly connected to the side wall of the cooling channel (5) near the axis of the cylinder (1). The thermocouple sensors (6) are electrically connected to an external display device.

2. The semi-solid die-casting machine feed cylinder according to claim 1, characterized in that, A piston (7) is provided at one end of the cylinder (1) away from the discharge port (3). The piston (7) is slidably connected to the cylinder (1) and is controlled by an external hydraulic system.

3. The feed cylinder of a semi-solid die-casting machine according to claim 1, characterized in that, The cylinder (1) is made of a high thermal stability material. The material composition of the cylinder (1) includes tungsten and has a red hardness ≥ HRC45. The surface of the cylinder (1) is treated with glow discharge ion nitriding.

4. The feed cylinder of a semi-solid die-casting machine according to claim 2, characterized in that, The inner wall of the cylinder (1) is provided with a heat-resistant layer (8), the material of the heat-resistant layer (8) is heat-resistant steel, and the outer wall of the piston (7) is tightly attached to the inner wall of the heat-resistant layer (8).

5. The feed cylinder of a semi-solid die-casting machine according to claim 1, characterized in that, An oil outlet pipe (9) and an oil inlet pipe (10) are respectively provided above and below the cylinder (1), and the oil outlet pipe (9) and the oil inlet pipe (10) are respectively connected to both ends of the heating channel (4).

6. The feed cylinder of a semi-solid die-casting machine according to claim 1, characterized in that, The cylinder (1) is provided with an outlet pipe (11) and an inlet pipe (12) at the top and bottom respectively, and the outlet pipe (11) and the inlet pipe (12) are respectively connected to the two ends of the cooling channel (5).

7. The feed cylinder of a semi-solid die-casting machine according to claim 1, characterized in that, The heating channel (4) and cooling channel (5) are both spring-shaped and arranged in a double-helix staggered pattern.

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