Die temperature adjusting machine capable of accurately controlling temperature

Abstract

The utility model discloses a mould temperature regulator with accurate temperature control, which comprises a machine body, a support is fixed in the machine body, a tank body is fixed on the support, an end cover is arranged at the upper end of the tank body, an electric heating pipe is circumferentially arranged on the inner side of the tank body, the end cover is outwards connected with a water return pipeline, and the water return pipeline is communicated with the tank body. The lower end of the tank body is outwards connected with a water outlet pipeline, and the water return pipeline, the water outlet pipeline and the tank body are all provided with temperature sensors; the device further comprises an outer circulation cooling structure, a replacement structure and a homogenization structure, and a water outlet pump body is installed on the water outlet pipeline. The mold temperature adjusting machine capable of accurately controlling the temperature has the advantages of being capable of improving the temperature adjusting efficiency, convenient to use and easy to manufacture.

Description

Technical Field

[0001] The utility model relates to the technical field of mold temperature regulators, and particularly relates to a mold temperature regulator with precise temperature control. Background Art

[0002] A mold temperature regulator is used to adjust the temperature of the mold of an injection molding machine. If the mold temperature is unstable or the controlled temperature is incorrect, the molded products produced will have phenomena such as water trapping marks, shrinkage, distortion, deformation, and poor surface gloss. Therefore, it is necessary to precisely control the mold temperature during the product molding process.

[0003] However, the existing regulators for adjusting the mold temperature achieve temperature adjustment by switching heating media and cooling media, but the adjustment takes a long time and has low efficiency, and cannot meet the usage requirements. Summary of the Invention

[0004] Aiming at the deficiencies of the above-mentioned prior art, the technical problem to be solved by this patent application is how to provide a mold temperature regulator with precise temperature control that can improve the temperature adjustment efficiency, is easy to use, and is easy to manufacture.

[0005] To solve the above technical problems, the utility model adopts the following technical scheme:

[0006] A mold temperature regulator with precise temperature control, including a machine body, a support is fixed inside the machine body, a tank body is fixed on the support, the upper end of the tank body has an end cover, and electric heating tubes are installed circumferentially on the inner side of the tank body.

[0007] The end cover is externally connected with a return water pipe, the lower end of the tank body is externally connected with a water outlet pipe, and temperature sensors are installed on the return water pipe, the water outlet pipe and the tank body; it also includes an external circulation cooling structure, a replacement structure and a homogenization structure, and a water outlet pump body is installed on the water outlet pipe.

[0008] In this way, when adjusting the temperature of the mold, a medium is placed in the tank body, and the medium can be water or oil. The electric heating tube heats the medium, and the water outlet pump body drives the liquid in the tank body to reach the mold and returns to the tank body through the return water pipe, realizing the temperature adjustment of the mold. Due to the setting of the temperature sensor, the temperature of this path can be monitored in real time. When the temperature is low, the electric heater heats the medium, and when the temperature is high, through the external circulation cooling structure and the replacement structure, the medium can be quickly cooled down, with accurate adjustment and high efficiency.

[0009] Among them, the external circulation cooling structure includes an external circulation cooler and an external circulation pipeline. The external circulation pipeline is located inside the tank. The inlet and outlet of the external circulation pipeline pass through the tank body and are respectively connected to the outlet and inlet of the external circulation cooler. The external circulation cooler is installed inside the machine body. An external circulation pump is installed on the external circulation pipeline, and the external circulation pump is located outside the tank body.

[0010] Among them, the external circulation pipeline is spiral and is arranged outside the homogenization structure.

[0011] Among them, the replacement structure includes a replacement tank and a replacement cooler fixedly installed inside the machine body. The lower end of the tank body is connected to the replacement tank through a replacement pipeline. A replacement valve is installed on the replacement pipeline. The replacement tank is connected to the inlet of the replacement cooler through a replacement channel. A replacement circulation pump is installed on the replacement channel. The outlet of the replacement cooler is connected to the cover body through a return pipeline. A return circulation pump and a return valve are installed on the return pipeline.

[0012] Among them, the homogenization structure includes a rotating shaft. Blades are circumferentially distributed on the outer side of the rotating shaft. The upper end of the rotating shaft passes through the cover body and is fixedly connected to the output shaft of the servo motor. The servo motor is fixedly installed on the cover body.

[0013] In summary, the mold temperature regulator with precise temperature control of the present invention has the advantages of improving the temperature regulation efficiency, being convenient to use, and being easy to manufacture. Brief Description of the Drawings

[0014] Figure 1 It is a partial cross-sectional view of a mold temperature regulator with precise temperature control according to the present invention.

[0015] Figure 2 is Figure 1 a schematic diagram of removing the machine body. Detailed Description of the Preferred Embodiment

[0016] The present invention will be further described in detail below with reference to the drawings. In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the orientation words such as "upper, lower" and "top, bottom" is usually based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description. Without contrary description, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the protection scope of the present invention; the orientation words "inner, outer" refer to the inside and outside relative to the contour of each component itself.

[0017] Such as Figure 1-2As shown in the figure, a mold temperature regulator with precise temperature control includes a machine body 1. A support 2 is fixed inside the machine body. A tank 3 is fixed on the support. The upper end of the tank has an end cover 4. Electric heating tubes 5 are installed circumferentially on the inner side of the tank.

[0018] The end cover is externally connected to a return water pipe 6. The lower end of the tank is externally connected to a water outlet pipe 7. Temperature sensors 8 are installed on the return water pipe, the water outlet pipe and the tank. It also includes an external circulation cooling structure, a replacement structure and a homogenization structure. A water outlet pump body 9 is installed on the water outlet pipe.

[0019] In this way, when adjusting the temperature of the mold, a medium is placed in the tank. The medium can be water or oil. The electric heating tube heats the medium. The water outlet pump body drives the liquid in the tank to reach the mold and returns to the tank through the return water pipe, realizing the temperature adjustment of the mold. Due to the setting of the temperature sensor, the temperature of this path can be monitored in real time. When the temperature is low, the electric heater heats the medium. When the temperature is high, through the external circulation cooling structure and the replacement structure, the medium can be quickly cooled down, with accurate adjustment and high efficiency.

[0020] The replacement structure can replace the medium in the tank to achieve the effect of rapid cooling. During replacement, the medium can be quickly mixed through the homogenization structure to improve the temperature uniformity of the medium.

[0021] During implementation, the external circulation cooling structure includes an external circulation cooler 11 and an external circulation pipe 12. The external circulation pipe is located inside the tank. The inlet and outlet of the external circulation pipe pass through the tank and are respectively connected to the outlet and inlet of the external circulation cooler. The external circulation cooler is installed inside the machine body. An external circulation pump 13 is installed on the external circulation pipe. The external circulation pump is located outside the tank.

[0022] In this way, the external circulation pump drives the coolant to flow and cools the medium in the tank. The coolant is isolated from the medium to avoid mixing.

[0023] During implementation, the external circulation pipe is spiral and is arranged outside the homogenization structure. The length of the external circulation pipe in the tank is increased to better cool down.

[0024] During implementation, the replacement structure includes a replacement tank 14 and a replacement cooler 15 fixedly installed inside the machine body. The lower end of the tank is connected to the replacement tank through a replacement pipe 16. A replacement valve 17 is installed on the replacement pipe. The replacement tank is connected to the inlet of the replacement cooler through a replacement channel. A replacement circulation pump 18 is installed on the replacement channel. The outlet of the replacement cooler is connected to the cover body through a return pipe 9. A return circulation pump 21 and a return valve 22 are installed on the return pipe.

[0025] In this way, when rapid cooling is required, the replacement valve, replacement circulation pump, return valve, and return circulation pump are opened. The medium in the tank reaches the replacement tank through the replacement pipeline. At the same time, the medium in the replacement tank is cooled by the replacement cooler and then returns to the tank, achieving the effect of rapidly replacing the medium in the tank. Of course, the upper end of the replacement tank can be provided with an opening.

[0026] Specifically, the replacement tank contains a medium and the upper end of the replacement tank is provided with an opening. A cooling fan is arranged in the machine body to cool the medium in the replacement tank.

[0027] During implementation, the homogenization structure includes a rotating shaft 23. Blades 24 are circumferentially distributed on the outer side of the rotating shaft. The upper end of the rotating shaft passes through the cover and is fixedly connected to the output shaft of a servo motor 25. The servo motor is fixedly installed on the cover. The servo motor drives the rotating shaft to rotate, and the medium is agitated by the blades to achieve rapid mixing of the medium and make the temperature quickly uniform.

[0028] Of course, it also includes a PLC controller. Its input end is electrically connected to an external power supply. The temperature sensor, servo motor, electric heating tube, pump, valve, and cooler are respectively connected to the input end of the PLC controller.

[0029] Finally, it should be noted that those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention also intends to include these modifications and variations.

Claims

1. A mold temperature regulator with precise temperature control, comprising a machine body, a support fixed in the machine body, a tank body fixed on the support, an end cover at the upper end of the tank body, and an electric heating pipe circumferentially installed inside the tank body, characterized in that: The end cover is externally connected to a return water pipe, the lower end of the tank body is externally connected to a water outlet pipe, the return water pipe, the water outlet pipe and the tank body are all equipped with temperature sensors; it also includes an external circulation cooling structure, a displacement structure and a homogenization structure, and a water outlet pump body is installed on the water outlet pipe.

2. A mold temperature regulator with precise temperature control according to claim 1, characterized in that: The external circulation cooling structure includes an external circulation cooler and an external circulation pipeline. The external circulation pipeline is located in the tank body. The inlet and outlet of the external circulation pipeline pass through the tank body and are respectively connected to the outlet and inlet of the external circulation cooler. The external circulation cooler is installed in the machine body. An external circulation pump is installed on the external circulation pipeline, and the external circulation pump is located outside the tank body.

3. A mold temperature regulator with precise temperature control according to claim 2, characterized in that: The outer circulation pipeline is spiral and arranged on the outside of the homogenizing structure.

4. The mold temperature regulator with precise temperature control according to claim 1, characterized in that: The replacement structure includes a replacement box and a replacement cooler fixedly installed in the machine body, the lower end of the tank body is connected to the replacement box through a replacement pipe, a replacement valve is installed on the replacement pipe, the replacement box and the inlet of the replacement cooler are connected through a replacement channel, a replacement circulation pump is installed on the replacement channel, the outlet of the replacement cooler is connected to the cover body through a reflux pipe, and a reflux circulation pump and a reflux valve are installed on the reflux pipe.

5. The mold temperature regulator with precise temperature control according to claim 1, characterized in that: The homogenizing structure comprises a rotating shaft, blades are circumferentially distributed on the outer side of the rotating shaft, the upper end of the rotating shaft passes through the cover body and is fixedly connected to the output shaft of the servo motor, and the servo motor is fixedly mounted on the cover body.

Images