Heat treatment device for injection mold processing

Abstract

The utility model discloses a heat treatment device for injection mold processing, which comprises a support frame, a heat treatment box body, an electric heater and a loading tray, the heat treatment box body is arranged on one side above the support frame, a wind scooper is arranged on the side wall of the heat treatment box body, the electric heater is arranged on the other side above the support frame, and the loading tray is arranged on the electric heater. A sealing door is arranged on the front side of the heat treatment box body, two air cylinders are arranged on the front side of the sealing door, the output ends of the two air cylinders are connected with the wall face of the sealing door, a mounting frame and a carrying tray are arranged in the heat treatment box body, and the mounting frame is fixedly connected with the side wall of the sealing door. According to the utility model, the four carrying trays can simultaneously and slowly rotate by 360 degrees, so that not only is the heating uniformity of the mold in the heating process improved, but also a plurality of molds can be simultaneously processed when the four carrying trays simultaneously rotate, and thus the production efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of heat treatment technology for injection molds, and specifically to a heat treatment device for injection mold processing. Background Technology

[0002] Injection molds are typically made from a variety of different materials, such as mold steel and alloy steel. Heat treatment can alter the internal structure of the mold material, eliminate residual stress, and improve its toughness, thereby increasing the mold's hardness and wear resistance. This is especially important for injection molds, as they must withstand the pressure and friction of the molten plastic during use and possess sufficient hardness and wear resistance to maintain a long service life.

[0003] The existing injection molds are fixed inside the heat treatment furnace, which may cause uneven heating of different parts of the mold, thus affecting the heat treatment effect.

[0004] For example, the high-efficiency mold heat treatment furnace disclosed in patent CN216585108U can achieve uniform heating by having the second gear at the output end of the motor mesh with the first gear at the bottom end of the transmission shaft, and the rotation of the motor driving the rotation of the internal placement plate. After the mold is heat-treated inside the heating chamber, workers need to enter the heating chamber to remove the material. However, the heating chamber is still at a high temperature, and there is a risk of burns if workers directly enter the heating chamber to remove the material. If manual removal is required, the temperature inside the heating chamber must be lowered to a safe range before it can be done, which will increase the production cycle and waiting time, thus reducing the utilization rate and production efficiency of the device.

[0005] Therefore, it is necessary to invent a heat treatment device for injection mold processing to solve the above problems. Utility Model Content

[0006] The purpose of this invention is to provide a heat treatment device for injection mold processing to solve the problem of low material handling safety in the technology.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a heat treatment device for injection mold processing, comprising a support frame, a heat treatment chamber, an electric heater, and a loading tray. The heat treatment chamber is provided on one side above the support frame, and an air guide hood is provided on the side wall of the heat treatment chamber. An electric heater is provided on the other side above the support frame. A sealing door is provided on the front side of the heat treatment chamber, and two cylinders are provided on the front side of the sealing door. The output ends of the two cylinders are connected to the wall of the sealing door. An mounting frame and a loading tray are provided inside the heat treatment chamber, and the mounting frame is fixedly connected to the side wall of the sealing door.

[0008] Preferably, a conveying pipe is connected between the electric heater and the air guide shroud. The air inlet end of the conveying pipe is connected to the air outlet end of the electric heater, and the air outlet end of the conveying pipe is connected to the air inlet end of the air guide shroud. The conveying pipe ensures that hot air flows smoothly from the air outlet end of the electric heater to the air inlet end of the air guide shroud, thereby realizing the directional transmission and effective utilization of hot air.

[0009] Preferably, the air guide shroud is equipped with an air guide fan inside, and the side wall of the air guide shroud is provided with air guide ports. Multiple air guide ports are provided, and the air guide fan, together with the air guide ports, can ensure that hot air enters the heat treatment area quickly.

[0010] Preferably, the sealing door and the heat treatment chamber are connected by a snap-fit ​​mechanism, and a sealing ring is provided at the connection between the sealing door and the heat treatment chamber. The sealing ring further enhances the sealing effect, ensuring that heat and gas will not leak out during the heat treatment process.

[0011] Preferably, the lower side wall of the mounting frame is provided with rollers, and four rollers are provided. The four rollers are in contact with the top surface of the support frame, and the rollers enable the mounting frame to be easily moved or its position adjusted on the support frame.

[0012] Preferably, a rotary motor is installed inside the lower end of the mounting frame, and a cargo tray is installed inside the upper end of the mounting frame. There are four cargo trays, which are designed in a disc shape and are distributed at equal distances and parallel to each other. The arrangement of four cargo trays also improves the processing efficiency of the device.

[0013] Preferably, a bevel gear set is provided on one side of the rotary motor. The bevel gear set consists of two matching bevel gears that mesh with each other. One bevel gear is connected to the output end of the rotary motor, and the other bevel gear is connected to the bottom end of the rotating shaft. The rotating shaft is fixedly connected to the center of the four carrying trays. The rotational power of the rotary motor is transmitted to the rotating shaft through the bevel gear set, thereby driving the four carrying trays to rotate.

[0014] Preferably, the bottom of the carrying tray is provided with ventilation holes, and a plurality of ventilation holes are provided. The ventilation holes enhance the air circulation at the bottom of the carrying tray, allowing hot air to penetrate the mold more effectively.

[0015] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0016] 1. This utility model is designed with four loading trays that can rotate slowly 360 degrees simultaneously, which not only improves the uniformity of heating of the mold during the heating process, but also means that multiple molds can be processed at the same time, thereby improving production efficiency.

[0017] 2. The internal loading tray of this utility model can be driven by two cylinders, so that the loading tray can be completely moved out of the heat treatment chamber when loading and unloading materials, eliminating the need for manual entry into the heating chamber to retrieve materials. This not only avoids safety risks such as high temperature burns and further improves the safety of the device, but also reduces the time wasted waiting for the temperature to drop, further improving the overall production efficiency. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a three-dimensional cross-sectional structural diagram of the heat treatment chamber and air guide shroud of this utility model;

[0020] Figure 3 A three-dimensional structural diagram of the opening of the sealing door of this utility model;

[0021] Figure 4 This is a three-dimensional structural diagram of the sealing ring of this utility model;

[0022] Figure 5 This is a three-dimensional structural diagram of the cargo tray and ventilation holes of this utility model.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Support frame; 2. Heat treatment chamber; 3. Air guide hood; 4. Electric heater; 5. Conveying pipe; 6. Air guide fan; 7. Air guide outlet; 8. Sealing door; 9. Sealing ring; 10. Cylinder; 11. Mounting bracket; 12. Roller; 13. Loading tray; 14. Rotary motor; 15. Bevel gear set; 16. Rotating shaft; 17. Ventilation hole. Detailed Implementation

[0025] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0026] This utility model provides, for example Figure 1-5 The heat treatment device for injection mold processing shown includes a support frame 1, a heat treatment chamber 2, an electric heater 4, and a loading tray 13. The heat treatment chamber 2 is provided on one side above the support frame 1, and an air guide hood 3 is provided on the side wall of the heat treatment chamber 2. The electric heater 4 is provided on the other side above the support frame 1. A sealing door 8 is provided on the front side of the heat treatment chamber 2. Two cylinders 10 are provided on the front side of the sealing door 8, and the output ends of the two cylinders 10 are connected to the wall of the sealing door 8. An installation frame 11 and a loading tray 13 are provided inside the heat treatment chamber 2. The installation frame 11 is fixedly connected to the side wall of the sealing door 8.

[0027] A conveying pipe 5 is connected between the electric heater 4 and the air guide shroud 3. The air inlet of the conveying pipe 5 is connected to the air outlet of the electric heater 4, and the air outlet of the conveying pipe 5 is connected to the air inlet of the air guide shroud 3. A guide fan 6 is installed inside the air guide shroud 3, and multiple air guide ports 7 are provided on the side wall of the air guide shroud 3.

[0028] The electric heater 4 is installed on one side of the heat treatment chamber 2. Its air outlet is connected to the air inlet of the air guide shroud 3 through the conveying pipe 5. The conveying pipe 5 ensures that the hot air is efficiently transferred from the electric heater 4 to the air guide shroud 3. The air guide shroud 3 is equipped with a guide fan 6 to enhance the circulation and distribution of the hot air. Multiple air guide ports 7 are opened, which allow the hot air to flow out evenly from the inside of the air guide shroud 3 and enter the heat treatment chamber 2.

[0029] The sealing door 8 is connected to the heat treatment chamber 2 by a snap-fit ​​connection. A sealing ring 9 is provided at the connection between the sealing door 8 and the heat treatment chamber 2. Rollers 12 are provided on the lower side wall of the mounting frame 11. There are four rollers 12, and the four rollers 12 are in contact with the top surface of the support frame 1.

[0030] The sealing door 8 is connected to the heat treatment chamber 2 by a snap-fit ​​connection to ensure the airtightness during the heat treatment process. A sealing ring 9 is also provided at the connection to further enhance the sealing effect and prevent hot air leakage. The mounting frame 11 is designed to support the cargo tray 13 and the rotary motor 14. Four rollers 12 are installed on its lower side wall. These rollers 12 can be easily moved or adjusted on the support frame 1 to move the mounting frame 11 and cargo tray 13 out of the heat treatment chamber 2 or into the heat treatment chamber 2.

[0031] A rotary motor 14 is installed inside the lower end of the mounting frame 11, and a cargo tray 13 is installed inside the upper end of the mounting frame 11. There are four cargo trays 13, which are designed in a disc shape and are distributed in a parallel and equidistant manner. A bevel gear set 15 is provided on one side of the rotary motor 14. The bevel gear set 15 consists of two matching bevel gears that are meshed together. One bevel gear is connected to the output end of the rotary motor 14, and the other bevel gear is connected to the bottom end of the rotating shaft 16. The rotating shaft 16 is fixedly connected to the center of the four cargo trays 13. Several ventilation holes 17 are provided at the bottom of the cargo trays 13.

[0032] The rotary motor 14, bevel gear set 15 and rotating shaft 16 can drive the four carrying trays 13 to rotate. The synchronous rotation of the four carrying trays 13 also means that multiple injection molds can be handled at the same time, thereby improving production efficiency. Each carrying tray 13 has several ventilation holes 17 at the bottom. These ventilation holes 17 allow hot air to penetrate the injection mold from the bottom of the carrying tray 13, improving the uniformity and efficiency of heat treatment, and further ensuring that all parts of the mold are heated evenly.

[0033] Working principle of this utility model:

[0034] Refer to the instruction manual appendix Figure 1-5 When using this utility model, firstly, activate the two cylinders 10. The cylinders 10 push the sealing door 8 away from the heat treatment chamber 2, allowing the mounting bracket 11 and four carrying trays 13 to be located outside the heat treatment chamber 2. Then, place the injection mold to be heat-treated on the carrying trays 13 inside the heat treatment device. Next, push the cylinders 10 to tightly engage the sealing door 8 with the heat treatment chamber 2. Then, connect the power supply to the electric heater 4 to start it working. The hot air generated by the electric heater 4 is transported through the conveying pipe 5 to the air guide hood 3. The guide fan 6 inside the air guide hood 3 starts working, evenly blowing the hot air out from the air guide port 7 into the heat treatment chamber 2. The heat is circulated within the heat treatment chamber 2 to ensure that all parts of the mold are heated evenly. At the same time, the rotary motor 14 is started, which drives the rotating shaft 16 to rotate through the bevel gear set 15. The rotation of the rotating shaft 16 causes the carrying tray 13 and the injection mold on it to rotate accordingly. This rotary heating method helps the injection mold to be heated evenly and rapidly. The injection mold undergoes heat treatment in the heat treatment chamber 2. Hot air penetrates the injection mold through the ventilation holes 17 at the bottom of the carrying tray 13. When the heat treatment reaches the set time and temperature, the electric heater 4 and the rotary motor 14 are turned off. The sealing door 8 is opened by the cylinder 10, and the heat-treated injection mold can be taken out.

Claims

1. A heat treatment apparatus for injection mold processing, comprising a support frame (1), a heat treatment chamber (2), an electric heater (4), and a loading tray (13), characterized in that: A heat treatment chamber (2) is provided on one side above the support frame (1). A wind guide hood (3) is provided on the side wall of the heat treatment chamber (2). An electric heater (4) is provided on the other side above the support frame (1). A sealing door (8) is provided on the front side of the heat treatment chamber (2). Two cylinders (10) are provided on the front side of the sealing door (8). The output ends of the two cylinders (10) are connected to the wall of the sealing door (8). An installation frame (11) and a carrying tray (13) are provided inside the heat treatment chamber (2). The installation frame (11) is fixedly connected to the side wall of the sealing door (8).

2. The heat treatment apparatus for injection mold processing according to claim 1, characterized in that: A conveying pipe (5) is connected between the electric heater (4) and the air guide shroud (3). The air inlet of the conveying pipe (5) is connected to the air outlet of the electric heater (4), and the air outlet of the conveying pipe (5) is connected to the air inlet of the air guide shroud (3).

3. The heat treatment apparatus for injection mold processing according to claim 2, characterized in that: The air guide shroud (3) is equipped with an air guide fan (6) inside, and the side wall of the air guide shroud (3) is provided with an air guide port (7), and there are multiple air guide ports (7).

4. The heat treatment apparatus for injection mold processing according to claim 1, characterized in that: The sealing door (8) and the heat treatment chamber (2) are connected by a snap-fit ​​connection, and a sealing ring (9) is provided at the connection between the sealing door (8) and the heat treatment chamber (2).

5. The heat treatment apparatus for injection mold processing according to claim 1, characterized in that: The mounting bracket (11) has four rollers (12) on its lower side wall, and the four rollers (12) are in contact with the top surface of the support frame (1).

6. The heat treatment apparatus for injection mold processing according to claim 5, characterized in that: A rotary motor (14) is provided inside the lower end of the mounting frame (11), and a cargo tray (13) is provided inside the upper end of the mounting frame (11). There are four cargo trays (13), which are designed in a disc shape and are distributed at equal distances and parallel to each other.

7. The heat treatment apparatus for injection mold processing according to claim 6, characterized in that: A bevel gear set (15) is provided on one side of the rotary motor (14). The bevel gear set (15) consists of two matching bevel gears that mesh with each other. One bevel gear is connected to the output end of the rotary motor (14), and the other bevel gear is connected to the bottom end of the rotating shaft (16). The rotating shaft (16) is fixedly connected to the center of the four carrying trays (13).

8. The heat treatment apparatus for injection mold processing according to claim 7, characterized in that: The bottom of the cargo tray (13) is provided with ventilation holes (17), and there are several ventilation holes (17).

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