Mold temperature controller with heat exchange medium filtering mechanism for injection molding machine

Abstract

The utility model discloses an injection molding machine mold temperature controller with a heat exchange medium filtering mechanism, which comprises a mold temperature controller case, a temperature control bin and a control bin are sequentially arranged in the mold temperature controller case from left to right, a cabinet door is hinged to one side of the temperature control bin, a plurality of first heat dissipation grid holes are formed in the cabinet door, and a plurality of second heat dissipation grid holes are formed in the other side of the temperature control bin. The mold temperature controller comprises a temperature control bin, a heating oil tank is fixedly arranged on the inner side wall of the temperature control bin, the bottom end of the heating oil tank is fixedly communicated with a filtering ball cover, an external thread cylinder is fixedly arranged at the bottom end of the filtering ball cover, and the filtering mechanism used for purifying heating oil is arranged at the bottom end of the external thread cylinder. According to the mold temperature controller for the injection molding machine, the filtering ball cover and the filtering mechanism are additionally arranged at the bottom of the storage box, sticky substances, particle impurities and the like in grease can be filtered and intercepted in the process that circulation of heat exchange grease is not affected, the heat exchange grease can better transfer heat, temperature control over an injection mold is more accurate, and the service life of the injection mold is prolonged. And the qualification rate of injection molding products can be increased, and the filtering structure and the heat exchange grease are convenient to replace and clean.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molding of injection molding machines, in particular to a mold temperature controller for an injection molding machine with a heat exchange medium filtering mechanism. Background Art

[0002] The mold temperature controller of the injection molding machine is also called the mold temperature controller, which is used to control the temperature of the mold during injection molding. At present, the common mold temperature controller of the injection molding machine is mainly composed of a cabinet, a liquid storage tank, a heating mechanism, a cooling mechanism and a power circulation mechanism. When in use, the catalyst circulates inside the mold through the power circulation mechanism, thereby completing heat exchange to achieve the effect of temperature control of the injection mold.

[0003] Since the heat exchange medium in the storage tank is mostly heat exchange grease, these heat exchange greases are easily oxidized and deteriorated after repeated heating and cooling, and become viscous. In addition, there may be small particles of impurities in the heat exchange grease. In the process of circulating heat exchange and temperature control of the injection molding machine mold, it is easy to block the pipeline. The grease is viscous and cannot flow smoothly, so the overall heat exchange effect becomes worse. Overheating or overcooling of the mold will cause problems such as sticking, sinking, shrinkage and heat bubbles in the injection mold, thereby affecting the qualified rate of injection molded products. Utility Model Content

[0004] The utility model aims to provide a mold temperature controller for an injection molding machine with a heat exchange medium filtering mechanism, so as to solve the problem that the existing injection molding mold temperature controller mentioned in the above background technology affects the qualified rate of injection molding products.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a mold temperature controller for an injection molding machine with a heat exchange medium filtering mechanism, comprising a mold temperature machine box, wherein a temperature control chamber and a control chamber are arranged in sequence from left to right inside the mold temperature machine box, a cabinet door is hinged on one side of the temperature control chamber, a plurality of first heat dissipation grille holes are arranged on the cabinet door, and a plurality of second heat dissipation grille holes are arranged on the other side of the temperature control chamber, a heating oil tank is fixedly arranged on the inner side wall of the temperature control chamber, a filter ball cover is fixedly connected to the bottom end of the heating oil tank, an external threaded barrel is fixedly arranged on the bottom end of the filter ball cover, a filtering mechanism for purifying the heating oil is arranged on the bottom end of the external threaded barrel, a suction pipe is fixedly connected to one side of the filter ball cover, a flow supply pump is fixedly installed on the bottom end of the suction pipe, an electric heater, a cooler and a temperature sensor are fixedly installed on the inner side wall of the heating oil tank, a return pipe is fixedly connected to the top end of the heating oil tank, a control module is fixedly installed inside the control chamber, and a cooling fan is fixedly installed on the back of the temperature control chamber.

[0006] Preferably, one end of the reflux pipe passes through the mold temperature cabinet and is fixedly provided with a liquid inlet pipe head, the water outlet of the flow supply pump is fixedly connected to a liquid supply pipeline, the flow supply pump is electrically connected to the control module, and the circulation is stable and efficient.

[0007] Preferably, the filtering mechanism includes a threaded cap and a filter mesh cylinder fixedly arranged in the middle of the threaded cap, a sealing gasket is fixedly arranged on the periphery of the inner side of the threaded cap, the filter mesh cylinder extends to the interior of the filter ball cover, and the threaded cap is threaded on the external threaded cylinder, which can filter and intercept viscous substances and particulate impurities in the grease, so that the heat exchange grease can better transfer heat.

[0008] Preferably, an electronic flow meter is fixedly installed in the middle of the extraction tube, and the electronic flow meter is electrically connected to the control module, and can measure the flow of the heat exchange grease, thereby improving the accuracy of heat exchange detection.

[0009] Preferably, a cooling fan is fixedly arranged on the back of the mold temperature chassis, and the cooling fan faces the cooler.

[0010] Preferably, a control panel is fixedly installed on the top of the mold temperature chassis, a display and a power switch are fixedly installed on the surface of the control panel, the electric heater, cooler and temperature sensor are all electrically connected to the control module, and the control module is electrically connected to the external power supply through the power switch, which is simple to operate.

[0011] Preferably, the four corners at the bottom of the mold temperature cabinet are fixedly provided with universal wheels, which is convenient for movement and use.

[0012] Compared with the prior art, the beneficial effect of the utility model is that the mold temperature controller for the injection molding machine is additionally provided with a filter ball cover at the bottom of the storage box, and a filter mechanism is additionally installed. In the process of not affecting the circulation of the heat exchange grease, the viscous substances and particulate impurities in the grease can be filtered and intercepted, so that the heat exchange grease can better transfer heat, and the temperature control of the injection mold is more accurate, which is beneficial to improving the qualified rate of the injection molded products. In addition, the filter structure and the heat exchange grease are easy to replace and clean, simple to maintain, and have a long service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the structure of the mold temperature controller of the utility model;

[0014] Figure 2 This is a front cross-sectional view of the mold temperature controller of the utility model;

[0015] Figure 3 This is a front cross-sectional view of the heating oil tank of the utility model;

[0016] Figure 4 It is a top cross-sectional view of the threaded cap of the utility model.

[0017] In the figure: 1. Mold temperature chassis; 2. Control panel; 3. Cabinet door; 4. Liquid supply pipeline; 5. Universal wheel; 6. Temperature control chamber; 7. Control chamber; 8. Heating oil tank; 9. Threaded cap; 10. Control module; 11. Filter ball cover; 12. Electric heater; 13. Liquid inlet pipe head; 14. Return pipe; 15. Cooling fan; 16. Supply pump; 17. Electronic flow meter; 18. Flow extraction pipe; 19. Filter mesh cylinder; 20. External thread cylinder; 21. Sealing gasket; 22. Temperature sensor; 23. Cooler; 24. First heat dissipation grille hole; 25. Second heat dissipation grille hole. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0019] See also Figure 1-4 The utility model provides a mold temperature controller for an injection molding machine with a heat exchange medium filtering mechanism, including a mold temperature machine box 1, the interior of the mold temperature machine box 1 is provided with a temperature control chamber 6 and a control chamber 7 from left to right, a cabinet door 3 is hinged on one side of the temperature control chamber 6, a plurality of first heat dissipation grid holes 24 are provided on the cabinet door 3, a plurality of second heat dissipation grid holes 25 are provided on the other side of the temperature control chamber 6, a heating oil tank 8 is fixedly provided on the inner side wall of the temperature control chamber 6, a filter ball cover 11 is fixedly connected to the bottom end of the heating oil tank 8, an external threaded cylinder 20 is fixedly provided at the bottom end of the filter ball cover 11, a filtering mechanism for purifying the heating oil is provided at the bottom end of the external threaded cylinder 20, a suction pipe 18 is fixedly connected to one side of the filter ball cover 11, and a suction pipe 18 is fixedly installed at the bottom end of the suction pipe 18 A flow supply pump 16, an electric heater 12, a cooler 23 and a temperature sensor 22 are fixedly installed on the inner wall of the heating oil tank 8, a return pipe 14 is fixedly connected to the top of the heating oil tank 8, a control module 10 is fixedly installed inside the control chamber 7, a cooling fan 15 is fixedly installed on the back of the temperature control chamber 6, a control panel 2 is fixedly installed on the top of the mold temperature chassis 1, a display and a power switch are fixedly installed on the surface of the control panel 2, the electric heater 12, the cooler 23 and the temperature sensor 22 are all electrically connected to the control module 10, and the control module 10 is electrically connected to the external power supply through the power switch; an electronic flow meter 17 is fixedly installed in the middle of the flow extraction pipe 18, and the electronic flow meter 17 is electrically connected to the control module 10;

[0020] When in use, the injection temperature is set, the electric heater 12 will heat the heat exchange grease in the heating oil tank 8, and the temperature sensor 22 will monitor the temperature of the heat exchange grease. When the temperature reaches the set value, the supply pump 16 is turned on, and the heat exchange grease is filtered by the filtering mechanism and enters the supply pump 16 through the suction pipe 18. The heat exchange grease is injected into the injection mold through the liquid supply pipeline 4 for heat exchange, and then flows back to the heating oil tank 8 through the return pipe 14. The temperature control is precise, which is beneficial to improving the qualified rate of injection molded products. The cooling fan 15 is designed to be opposite to the cooler 23. By suction, the outside air enters the mold temperature chassis 1 through the first heat dissipation grid hole 24 and the second heat dissipation grid hole 25 to achieve cooling of the cooler 23. The heating oil tank 8 is an insulation oil tank, which can increase the insulation performance of the heat exchange grease during heating. The insulation performance is significant, stable and reliable, and the energy consumption is low. The internal temperature of the mold temperature chassis 1 is stable, which can ensure the normal operation of electronic equipment.

[0021] See also Figure 1 and Figure 2 Further, one end of the reflux pipe 14 passes through the mold temperature chassis 1 and is fixedly provided with a liquid inlet pipe head 13, the water outlet of the flow pump 16 is fixedly connected with a liquid supply pipeline 4, the flow pump 16 is electrically connected to the control module 10, a cooling fan 15 is fixedly provided on the back of the mold temperature chassis 1, the cooling fan 15 is directly facing the cooler 23, and universal wheels 5 are fixedly provided at the four corners of the bottom end of the mold temperature chassis 1;

[0022] During use, when the mold temperature controller needs to be maintained, first open the cabinet door 3, place the oil collecting box directly under the filter ball cover 11, and remove the filter assembly as a whole by screwing. At this time, the heating grease in the heating oil tank 8 can be discharged as a whole, and the heating grease can be cleaned, which is convenient for maintenance.

[0023] See also Figure 2 and Figure 3 , further, the filtering mechanism includes a threaded cap 9 and a filter screen cylinder 19 fixedly arranged in the middle of the threaded cap 9, a sealing gasket 21 is fixedly arranged on the periphery of the inner side of the threaded cap 9, the filter screen cylinder 19 extends to the inside of the filter ball cover 11, and the threaded cap 9 is threadedly arranged on the external threaded cylinder 20;

[0024] When in use, during the temperature control process, the heat exchange grease in the heating oil tank 8 will be filtered through the filter mesh cylinder 19 and enter the filter ball cover 11. The filter mesh cylinder 19 will intercept the particulate impurities and viscous grease in the heat exchange grease, thereby allowing relatively clean grease to flow between the injection mold and the mold temperature controller, avoiding the problem of blockage of the heat exchange pipe and the mold, while improving the heat exchange effect, making the temperature control of the injection mold more accurate, and helping to improve the qualified rate of injection molded products.

[0025] When the embodiment of the present application is in use: the liquid supply pipeline 4 is connected to the liquid inlet of the injection molding machine mold, and the liquid outlet of the mold is connected to the liquid inlet pipe head 13 through a pipeline. The staff sets the injection temperature according to the injection molding temperature control requirements. The electric heater 12 will heat the heat exchange grease in the heating oil tank 8, and the temperature of the heat exchange grease is monitored by the temperature sensor 22. After the temperature reaches the set value, the flow pump 16 is turned on. At this time, the heat exchange grease in the heating oil tank 8 will be filtered by the filter mesh cylinder 19 and enter the filter ball cover 11, and enter the flow pump 16 through the suction pipe 18. After the heat exchange grease is injected into the injection mold through the liquid supply pipeline 4 for heat exchange, it will flow back to the heating oil tank 8 through the reflux pipe 14 to achieve temperature control of the injection mold.

[0026] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A mold temperature controller for an injection molding machine having a heat exchange medium filtering mechanism, comprising a mold temperature controller box (1), characterized in that: The mold temperature cabinet (1) is provided with a temperature control chamber (6) and a control chamber (7) from left to right in sequence. A cabinet door (3) is hingedly connected to one side of the temperature control chamber (6). The cabinet door (3) is provided with a plurality of first heat dissipation grille holes (24). A plurality of second heat dissipation grille holes (25) are provided on the other side of the temperature control chamber (6). A heating oil tank (8) is fixedly provided on the inner side wall of the temperature control chamber (6). The bottom end of the heating oil tank (8) is fixedly connected to a filter ball cover (11). The bottom end of the filter ball cover (11) is fixedly provided with an externally threaded barrel (20). The externally threaded barrel (20) ) is provided with a filtering mechanism for purifying the heating oil at the bottom end thereof, a suction pipe (18) is fixedly connected to one side of the filtering ball cover (11), a flow supply pump (16) is fixedly installed at the bottom end of the suction pipe (18), an electric heater (12), a cooler (23) and a temperature sensor (22) are fixedly installed on the inner side wall of the heating oil tank (8), a return pipe (14) is fixedly connected to the top end of the heating oil tank (8), a control module (10) is fixedly installed inside the control chamber (7), and a cooling fan (15) is fixedly installed on the back of the temperature control chamber (6).

2. A mold temperature controller for an injection molding machine having a heat exchange medium filtering mechanism according to claim 1, characterized in that: One end of the return pipe (14) passes through the mold temperature cabinet (1) and is fixedly provided with a liquid inlet pipe head (13); the water outlet of the flow supply pump (16) is fixedly connected to a liquid supply pipeline (4); and the flow supply pump (16) is electrically connected to the control module (10).

3. The mold temperature controller for an injection molding machine having a heat exchange medium filtering mechanism according to claim 1, characterized in that: The filtering mechanism comprises a threaded cap (9) and a filter screen cylinder (19) fixedly arranged in the middle of the threaded cap (9); a sealing gasket (21) is fixedly arranged on the periphery of the inner side of the threaded cap (9); the filter screen cylinder (19) extends to the interior of the filter ball cover (11); and the threaded cap (9) is threadedly arranged on the external threaded cylinder (20).

4. The mold temperature controller for an injection molding machine having a heat exchange medium filtering mechanism according to claim 1, characterized in that: An electronic flow meter (17) is fixedly mounted in the middle of the flow extraction tube (18), and the electronic flow meter (17) is electrically connected to the control module (10).

5. The mold temperature controller for an injection molding machine having a heat exchange medium filtering mechanism according to claim 1, characterized in that: A cooling fan (15) is fixedly arranged on the back of the mold temperature chassis (1), and the cooling fan (15) faces the cooler (23).

6. The mold temperature controller for an injection molding machine with a heat exchange medium filtering mechanism according to claim 1, characterized in that: A control panel (2) is fixedly mounted on the top of the mold temperature cabinet (1); a display and a power switch are fixedly mounted on the surface of the control panel (2); the electric heater (12), the cooler (23) and the temperature sensor (22) are all electrically connected to the control module (10); and the control module (10) is electrically connected to an external power supply via the power switch.

7. The mold temperature controller for an injection molding machine having a heat exchange medium filtering mechanism according to claim 1, characterized in that: Universal wheels (5) are fixedly arranged at the four corners of the bottom end of the mold temperature cabinet (1).

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