Mold cleaning device

Abstract

The utility model discloses a mold cleaning device which comprises a machine frame and a cleaning tank arranged on the machine frame, ultrasonic transducers are arranged on the bottom face of the cleaning tank, and ultrasonic transducers are arranged on the front side face and the rear side face of the cleaning tank. And the distance between the adjacent ultrasonic transducers on each surface of the cleaning tank is 2-3 times of the diameter of the ultrasonic transducers. According to the mold cleaning device disclosed by the utility model, the power density on a single surface of the cleaning tank is reduced by properly increasing the distance between the adjacent ultrasonic transducers, and the cavitation bubble density can be effectively reduced, so that the cavitation corrosion to the cleaning tank is reduced, and the service life of the cleaning tank is prolonged; and meanwhile, the density of the cavitation bubbles is reduced, so that ultrasonic energy can be prevented from being transmitted to a farther distance, and the cleaning effect on a distant mold can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cleaning devices, in particular to a cleaning device for a mold. Background Art

[0002] In order to allow the profile to pass through the extrusion die smoothly, a layer of release agent is usually applied to the cavity surface of the mold. After the mold has been used for a period of time, the release agent will age and become ineffective, and some plastic dirt will remain in the mold, and the mold needs to be cleaned at this time. In the ultrasonic cleaning device for cleaning molds used in the prior art, ultrasonic transducers are densely arranged at the bottom of the cleaning tank, and the spacing between adjacent ultrasonic transducers is less than 1 times the diameter of the ultrasonic transducer. The functional density is large, which can easily lead to cavitation corrosion at the bottom of the cleaning tank, and the dense bubbles generated will also hinder the propagation of ultrasonic waves to a distance, which will reduce the cleaning effect of the mold parts at a distance. In addition, the sewage generated by ultrasonic cleaning is directly discharged without being filtered, which will have an impact on the environment. Utility Model Content

[0003] In view of this, the purpose of the utility model is to provide a mold cleaning device to solve the technical problems that the ultrasonic circulators of the existing ultrasonic cleaning device are densely arranged at the bottom of the cleaning tank, which easily causes cavitation corrosion at the bottom of the cleaning tank and has poor cleaning effect on the mold far away from the ultrasonic circulators.

[0004] The utility model mold cleaning device comprises a frame and a cleaning tank arranged on the frame, wherein an ultrasonic transducer is arranged on the bottom surface of the cleaning tank, and ultrasonic transducers are also arranged on the front side and the rear side of the cleaning tank, and the spacing between adjacent ultrasonic transducers on each surface of the cleaning tank is 2-3 times the diameter of the ultrasonic transducer.

[0005] Furthermore, the mold cleaning device also includes a water circulation mechanism, which includes a water inlet main pipe, a water inlet branch pipe, a water pump, a filter and a return pipe, the inlet of the water inlet branch pipe is connected to the water inlet main pipe, the outlet of the water inlet branch pipe is connected to the cleaning tank, the inlet of the water pump is connected to the drain outlet of the cleaning tank, the outlet of the water pump is connected to the water inlet end of the filter, the inlet of the return pipe is connected to the drain end of the filter, the outlet of the return pipe is connected to the water inlet main pipe, a first control valve is provided at the front end of the water inlet main pipe, a second control valve is provided at the rear end of the water inlet main pipe, a switch valve is provided on the water inlet branch pipe, and a drain control valve is provided on the return pipe.

[0006] Furthermore, the cleaning tank is provided with a heater for heating the cleaning water and a temperature sensor for detecting the temperature of the cleaning water.

[0007] Beneficial effects of the utility model:

[0008] 1. The mold cleaning device of the utility model reduces the power density on a single surface of the cleaning tank by appropriately increasing the distance between adjacent ultrasonic transducers, which can effectively reduce the density of cavitation bubbles, thereby reducing cavitation corrosion to the cleaning tank and helping to extend the service life of the cleaning tank; at the same time, the reduction in cavitation bubble density can also prevent ultrasonic energy from being transmitted to a farther distance, thereby improving the cleaning effect of distant molds.

[0009] Although the power density of the ultrasonic transducer on a single surface is reduced, by arranging ultrasonic transducers on the front and rear sides of the cleaning tank, a three-dimensional ultrasonic transducer is formed on the cleaning tank, which can vibrate the dirt on the mold from multiple directions. The ultrasonic power density of the cleaning tank as a whole is enhanced, which can significantly improve the cleaning effect of the mold and better avoid the problem of cleaning dead corners.

[0010] 2. The water circulation mechanism provided in the mold cleaning device of the utility model can filter the sewage after cleaning, thereby avoiding the pollution problem caused by direct discharge of sewage to the environment.

[0011] After the sewage is discharged, some of the dirt removed after ultrasonic cleaning may remain in the mold. The mold after ultrasonic cleaning can also be rinsed through the water circulation mechanism to completely remove the dirt remaining in the mold.

[0012] 3. The mold release agent in the mold contains oil. The heater provided in the mold cleaning device of the utility model can heat the cleaning water to increase the water temperature, thereby improving the cleaning effect of the oil stains in the mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the three-dimensional structure of the mold cleaning device;

[0014] Figure 2 A schematic diagram of the three-dimensional structure of the mold cleaning device from another perspective;

[0015] Figure 3 It is a three-dimensional schematic diagram of the mold cleaning device after removing the outer cover plate of the frame. DETAILED DESCRIPTION

[0016] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0017] As shown in the figure, the mold cleaning device of this embodiment includes a frame 1 and a cleaning tank 2 arranged on the frame, an ultrasonic transducer 3 is arranged on the bottom surface of the cleaning tank, and ultrasonic transducers are also arranged on the front side and rear side of the cleaning tank, and the spacing between adjacent ultrasonic transducers on each surface of the cleaning tank is 2-3 times the diameter of the ultrasonic transducer.

[0018] The mold cleaning device in this embodiment reduces the power density on a single surface of the cleaning tank by appropriately increasing the distance between adjacent ultrasonic transducers, which can effectively reduce the density of cavitation bubbles, thereby reducing cavitation corrosion on the cleaning tank and helping to extend the service life of the cleaning tank; at the same time, the reduction in cavitation bubble density can also prevent ultrasonic energy from being transmitted to a farther distance, thereby improving the cleaning effect on distant molds.

[0019] Although the power density of the ultrasonic transducer on a single surface is reduced, by arranging ultrasonic transducers on the front and rear sides of the cleaning tank, a three-dimensional ultrasonic transducer is formed on the cleaning tank, which can vibrate the dirt on the mold from multiple directions. The ultrasonic power density of the cleaning tank as a whole is enhanced, which can significantly improve the cleaning effect of the mold and better avoid the problem of cleaning dead corners.

[0020] As an improvement to the above embodiment, the mold cleaning device further includes a water circulation mechanism, which includes a water inlet main pipe 4, a water inlet branch pipe 5, a water pump 6, a filter 7 and a water return pipe 8. The inlet of the water inlet branch pipe is connected to the water inlet main pipe, the outlet of the water inlet branch pipe is connected to the cleaning tank, the inlet of the water pump is connected to the drain outlet of the cleaning tank, the outlet of the water pump is connected to the water inlet end of the filter, the inlet of the water return pipe is connected to the drain end of the filter, the outlet of the water return pipe is connected to the water inlet main pipe, a first control valve 9 is provided at the front end of the water inlet main pipe, a second control valve 10 is provided at the rear end of the water inlet main pipe, a switch valve 11 is provided on the water inlet branch pipe, and a drain control valve 12 is provided on the water return pipe. The water inlet main pipe 4 is connected to a water source. When cleaning is required, the first control valve 9 and the switch valve 11 are opened, the second control valve 10 and the drain control valve 12 are closed, and water is added to the cleaning tank. After the water is added, the first control valve 9 is closed, and then the mold can be ultrasonically cleaned. After the ultrasonic cleaning is finished, the drainage control valve 12 is opened to drain the waste water. Since the filter 7 is set, the harmful substances in the waste water are filtered out when the waste water is discharged, which can ensure the safety of the discharge. After the waste water is discharged, the first control valve 9 is opened to put a certain amount of clean water, and then the second control valve 10 is opened. The clean water is driven by the water pump to circulate in the cleaning tank, the return pipe, the water inlet main pipe, and the water inlet branch pipe. The circulating water is used to take away the dirt remaining in the mold, so that the mold can be thoroughly cleaned.

[0021] As an improvement to the above embodiment, the cleaning tank is provided with a heater 13 for heating the cleaning water and a temperature sensor 14 for detecting the temperature of the cleaning water. The mold release agent in the mold contains oil, and the improved heater can heat the cleaning water to raise the water temperature to the required temperature, thereby improving the cleaning effect of the oil stains in the mold.

[0022] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A mold cleaning device, comprising a frame and a cleaning tank arranged on the frame, wherein an ultrasonic transducer is arranged on the bottom surface of the cleaning tank, and characterized in that: Ultrasonic transducers are also arranged on the front side and the rear side of the cleaning tank, and the spacing between adjacent ultrasonic transducers on each side of the cleaning tank is 2-3 times the diameter of the ultrasonic transducer.

2. The mold cleaning device according to claim 1, characterized in that: It also includes a water circulation mechanism, which includes a water inlet main pipe, a water inlet branch pipe, a water pump, a filter and a return pipe. The inlet of the water inlet branch pipe is connected to the water inlet main pipe, the outlet of the water inlet branch pipe is connected to the cleaning tank, the inlet of the water pump is connected to the drain outlet of the cleaning tank, the outlet of the water pump is connected to the water inlet end of the filter, the inlet of the return pipe is connected to the drain end of the filter, the outlet of the return pipe is connected to the water inlet main pipe, a first control valve is arranged at the front end of the water inlet main pipe, a second control valve is arranged at the rear end of the water inlet main pipe, a switch valve is arranged on the water inlet branch pipe, and a drain control valve is arranged on the return pipe.

3. The mold cleaning device according to claim 1, characterized in that: The cleaning tank is provided with a heater for heating the cleaning water and a temperature sensor for detecting the temperature of the cleaning water.

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