Injection mold with water blowing device

Abstract

The utility model relates to an injection mold with a water blowing device, the injection mold comprises a main body, a cooling water path, a blowing pipe, a pneumatic pump, a pneumatic tank, a fan, a first filter, a first valve and a second valve, the main body is provided with a mold cavity, and the mold cavity is used for containing molten plastic; the cooling waterway is arranged on the main body and comprises a first water pipe and a second water pipe, the first water pipe penetrates through the main body, one end of the first water pipe is provided with a water outlet, and the other end of the first water pipe is communicated with the second water pipe; the blowpipe is communicated with the second water pipe; the pneumatic pump communicates with the end, away from the second water pipe, of the blowpipe. The air pressure tank is communicated with the air blowing pipe, and the air pressure pump conveys external air into the air pressure tank so as to increase the air pressure in the air pressure tank; the fan is communicated with the blowpipe and is positioned at one end, far away from the first filter, of the air pressure tank; the first filter is arranged on the fan and is communicated with the blowpipe; the first valve is arranged on the second water pipe; the second valve is arranged on the air blowing pipe and located between the first water pipe and the draught fan.

Description

Technical Field

[0001] This application relates to the field of injection mold technology, and more particularly to an injection mold with a water blowing device. Background Technology

[0002] Injection molds are essential tools for molding plastic products. They work by injecting molten plastic into the mold cavity, where it cools and solidifies to form the desired product. To accelerate the cooling process, molds typically have cooling water channels that circulate water to lower the mold temperature. However, cooling water can easily remain in these channels after use, affecting mold maintenance and operation. Therefore, existing technologies have proposed injection molds with a water blowing device. This device uses a fan to introduce air into the cooling water channels to remove residual moisture. During the process of drawing in outside air, the air is briefly filtered through a filter before being delivered to the cooling water channels via a water blowing pipe, thus achieving the water blowing operation and removing residual moisture from inside the mold.

[0003] However, when the blower draws air directly through the filter, the filter creates significant resistance to the airflow, resulting in a marked reduction in air volume and preventing the airflow from reaching the desired intensity. In this situation, the water blowing effect is severely compromised, failing to effectively and quickly remove residual moisture from the mold's cooling water channels. Furthermore, insufficient airflow also reduces the overall efficiency of the water blowing device, making it difficult to meet the needs of actual production.

[0004] Therefore, it is necessary to propose an injection mold with a water blowing device to solve the problem of low water blowing efficiency caused by limited air volume and ensure that residual water in the mold cooling water channel can be quickly removed. Utility Model Content

[0005] The purpose of this application is to overcome the shortcomings of the prior art and propose an injection mold with a water blowing device. The aim is to solve the problem of low water blowing efficiency caused by limited air volume by improving the strength and stability of airflow, and to ensure that residual water in the mold cooling water channel can be quickly removed.

[0006] This application is achieved through the following technical solution:

[0007] This application discloses an injection mold with a water blowing device, comprising a main body and a cooling water channel. The main body has a mold cavity for containing molten plastic. The cooling water channel is disposed on the main body and includes a first water pipe and a second water pipe. The first water pipe passes through the main body, has an outlet at one end, and is connected to the second water pipe at the other end. The second water pipe has an inlet at the end away from the connection point with the first water pipe. The injection mold with the water blowing device further includes:

[0008] The blower pipe is connected to the second water pipe;

[0009] A pneumatic pump is connected to the end of the blower pipe that is furthest from the second water pipe;

[0010] An air pressure tank is connected to the air blower pipe, and the air pressure pump delivers outside air into the air pressure tank to increase the air pressure in the air pressure tank.

[0011] A blower is connected to the air duct and is located at the end of the pressure tank furthest from the first filter;

[0012] The first filter is installed on the fan and connected to the air duct;

[0013] The first valve is located on the second water pipe;

[0014] The second valve is provided on the air blowing pipe and is located between the first water pipe and the blower;

[0015] When the first valve is open and the second valve is closed, the coolant can flow from the inlet to the second water pipe and the first water pipe in sequence and then out from the outlet to cool the plastic in the mold cavity.

[0016] When both the first valve and the second valve are open, the fan starts, and at the same time, the air pressure in the pressure tank is released so that the high-pressure airflow in the pressure tank and the airflow output by the fan are blown into the first water pipe and the second water pipe through the first filter, thereby increasing the airflow into the cooling water circuit.

[0017] In one embodiment of this application, when the first valve is closed and the second valve is open, the fan starts, and at the same time the air pressure in the pressure tank is released, so that the high-pressure airflow in the pressure tank and the airflow output by the fan are blown into the first water pipe through the first filter, thereby increasing the wind force blown into the first water pipe.

[0018] In one embodiment of this application, the injection mold with a water blowing device further includes a second filter, which is connected to the air blowing pipe and is located between the air pump and the air pressure tank.

[0019] In one embodiment of this application, the first water pipe is distributed within the main body in a multi-segment U-shaped zigzag return flow structure.

[0020] In one embodiment of this application, the air pump and the fan are both fixedly connected to the main body.

[0021] In one embodiment of this application, the injection mold with a water blowing device is provided with a fixing member, the fixing member is provided on the main body, and the second water pipe is provided on the fixing member.

[0022] In one embodiment of this application, a flow guiding device is provided between the fan and the air blowing pipe. The flow guiding device is used to guide the airflow output by the fan to improve the stability of the airflow entering the first water pipe and the blowing effect.

[0023] In one embodiment of this application, the pressure tank is provided with a pressure monitoring device for real-time monitoring of the pressure state inside the pressure tank.

[0024] Compared with the prior art, the beneficial effects of this application are:

[0025] The cooling water circuit is located on the main body and includes a first water pipe and a second water pipe. The first water pipe passes through the main body, with an outlet at one end and connected to the second water pipe at the other end. The second water pipe has an inlet at the end furthest from the connection point with the first water pipe. A blower pipe is connected to the second water pipe. An air pressure pump is connected to the end of the blower pipe furthest from the second water pipe. An air pressure tank is connected to the blower pipe, and the air pressure pump delivers external air into the air pressure tank to increase the air pressure inside. A fan is connected to the blower pipe and is located at the end of the air pressure tank furthest from the first filter. The first filter is located on the fan and connected to the blower pipe. A first valve is located on the second water pipe. A second valve is located on the blower pipe. When both the first and second valves are open, the fan starts, and the air pressure in the air pressure tank is released, so that the high-pressure airflow in the air pressure tank and the airflow output by the fan are blown together through the first filter into the first and second water pipes, thereby increasing the airflow into the cooling water circuit. By utilizing the combined effect of the high-pressure airflow pre-stored in the pressure tank and the airflow output by the fan, not only is the strength and stability of the airflow significantly enhanced, but the removal efficiency of residual moisture in the cooling water circuit is also effectively improved, ensuring a fast and thorough water blowing operation. Simultaneously, it prevents external dust from entering the cooling water circuit, avoiding internal mold contamination and extending the mold's service life.

[0026] Other features and advantages of this application will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the application. The objectives and other advantages of this application may be realized and obtained by means of the structures pointed out in the description, claims and drawings. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1A perspective view of an injection mold with a water blowing device provided in an embodiment of this application;

[0029] Figure 2 A perspective view of an injection mold with a water blowing device provided in an embodiment of this application;

[0030] Figure 3 A side view of an injection mold with a water blowing device provided in an embodiment of this application;

[0031] Figure 4 for Figure 3 A cross-sectional view of the PP section.

[0032] Explanation of reference numerals in the attached figures:

[0033] 10. Injection mold with water blowing device; 100. Main body; 110. Mold cavity; 120. Fixing component; 210. First water pipe; 211. Water outlet; 220. Second water pipe; 221. Water inlet; 300. Air blowing pipe; 400. Air pressure pump; 500. Air pressure tank; 600. Fan; 710. First filter; 720. Second filter; 810. First valve; 820. Second valve; 900. Flow guiding device. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0035] To enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0036] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly set on the other component; when a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to the other component.

[0037] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0038] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" or "several" means two or more, unless otherwise explicitly specified.

[0039] It should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which this application can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size should still fall within the scope of the technical content disclosed in this application, provided that they do not affect the effects and purposes that this application can produce.

[0040] Please refer to Figures 1 to 4This application discloses an injection mold 10 with a water blowing device, including a main body 100, a cooling water channel (not shown in the figure), a blower pipe 300, an air pressure pump 400, an air pressure tank 500, a fan 600, a first filter 710, a first valve 810, and a second valve 820. The main body 100 has a mold cavity 110 for containing molten plastic. The cooling water channel is provided on the main body 100 and includes a first water pipe 210 and a second water pipe 220. The first water pipe 210 passes through the main body 100, has an outlet 211 at one end, and is connected to the second water pipe 220 at the other end. The second water pipe 220 is located away from the connection point of the first water pipe 210. The device has an inlet 221; a blower 300 is connected to a second water pipe 220; a pressure pump 400 is connected to the end of the blower 300 away from the second water pipe 220; a pressure tank 500 is connected to the blower 300, and the pressure pump 400 delivers external air into the pressure tank 500 to increase the air pressure in the pressure tank 500; a blower 600 is connected to the blower 300 and is located at the end of the pressure tank 500 away from the first filter 710; the first filter 710 is installed on the blower 600 and is connected to the blower 300; a first valve 810 is installed on the second water pipe 220; a second valve 820 is installed on the blower 300 and is located between the first water pipe 210 and the blower 600.

[0041] When the first valve 810 is opened and the second valve 820 is closed, the coolant can flow from the inlet 221 to the second water pipe 220 and the first water pipe 210 in sequence and flow out from the outlet 211 to cool the plastic in the mold cavity 110.

[0042] When both the first valve 810 and the second valve 820 are opened, the fan 600 starts, and at the same time the air pressure in the pressure tank 500 is released so that the high-pressure airflow in the pressure tank 500 and the airflow output by the fan 600 are blown into the first water pipe 210 and the second water pipe 220 through the first filter 710, thereby increasing the airflow into the cooling water circuit.

[0043] Specifically, the main body 100 has a mold cavity 110, which is used to contain molten plastic. The plastic in the mold cavity 110 is rapidly cooled through a cooling water circuit. The cooling water circuit includes a first water pipe 210 and a second water pipe 220. The first water pipe 210 passes through the interior of the main body 100 to achieve cooling. One end of the first water pipe 210 has an outlet 211, and the other end is connected to the second water pipe 220. The distal end of the second water pipe 220 has an inlet 221. Coolant flows into the second water pipe 220 through the inlet 221 and is finally discharged from the outlet 211. When the first valve 810 is open and the second valve 820 is closed, the cooling water circuit completes its cooling function. This addresses the problems of insufficient airflow and poor water blowing effect in the prior art.

[0044] The air pump 400 delivers external air to the pressure tank 500 for storage, forming high-pressure gas. When both the first valve 810 and the second valve 820 are open, the high-pressure gas in the pressure tank 500 is released and, together with the airflow output from the blower 600, is blown into the first water pipe 210 and the second water pipe 220 through the first filter 710, forming a strong and stable airflow to achieve efficient water blowing and effectively remove residual moisture from the first water pipe 210 and the second water pipe 220. Furthermore, the first filter 710 performs multi-stage filtration of the incoming air to prevent dust from entering the cooling water circuit, ensuring the cleanliness of the water blowing operation and maintaining the cleanliness of the mold interior.

[0045] The pressure tank 500 is equipped with a pressure monitoring device to monitor the pressure status inside the pressure tank 500 in real time.

[0046] In summary, the combined action of the pressure tank 500 and the fan 600 solves the problem of insufficient airflow and poor water blowing effect caused by the filter device in existing technologies. By utilizing the high-pressure airflow pre-stored in the pressure tank 500 and the airflow output by the fan 600, not only is the intensity and stability of the airflow significantly enhanced, but the removal efficiency of residual moisture in the cooling water circuit is also effectively improved, ensuring a fast and thorough water blowing operation. Simultaneously, it prevents external dust from entering the cooling water circuit, avoiding internal mold contamination and extending the mold's service life.

[0047] Please refer to Figure 4 In one embodiment, when the first valve 810 is closed and the second valve 820 is open, the blower 600 is started, and at the same time the air pressure in the pressure tank 500 is released so that the high-pressure airflow in the pressure tank 500 and the airflow output by the blower 600 are blown into the first water pipe 210 through the first filter 710, thereby increasing the wind force blown into the first water pipe 210.

[0048] Specifically, when the first valve 810 is closed and the second valve 820 is open, the coolant stops flowing, the fan 600 starts, and the air pump 400 delivers outside air to the pressure tank 500 for storage, creating a high-pressure airflow inside the pressure tank 500. At this time, the high-pressure airflow in the pressure tank 500 and the airflow output by the fan 600 are filtered together by the first filter 710 before entering the first water pipe 210 through the blower pipe 300, thus achieving the water blowing operation on the first water pipe 210. This solution, by combining the pre-stored high-pressure airflow in the pressure tank 500 with the stable airflow output by the fan 600, not only solves the problem of insufficient airflow when only the fan 600 supplies air, but also enhances the intensity and stability of the airflow blown into the cooling water circuit, thereby efficiently removing residual moisture inside the first water pipe 210 and ensuring smooth water blowing operation.

[0049] Please refer to Figure 1In one embodiment, the injection mold 10 with the water blowing device further includes a second filter 720, which is connected to the air blowing pipe 300 and is located between the air pressure pump 400 and the air pressure tank 500.

[0050] Specifically, the function of the second filter 720 is to perform primary filtration of the external air supplied by the air pressure pump 400, removing dust and impurities from the air and ensuring that the air entering the air pressure tank 500 is cleaner. Through the cooperation of the second filter 720 and the first filter 710, multi-stage filtration of the air entering the water blowing system is achieved, effectively improving the cleanliness of the airflow and preventing dust from entering the cooling water circuit during the water blowing process and contaminating the inside of the mold.

[0051] Please refer to Figure 1 In one embodiment, the first water pipe 210 is distributed within the main body 100 in a multi-segment U-shaped zigzag return flow structure.

[0052] Specifically, the first water pipe 210 is distributed within the main body 100 using a multi-segment U-shaped zigzag flow structure. This arrangement creates multiple continuous zigzag cooling channels within the mold body 100, allowing cooling water to flow evenly through multiple key areas of the mold cavity 110, effectively improving cooling performance. Simultaneously, this zigzag structure extends the cooling water flow path, increasing the contact area between the water and the mold body 100, prolonging heat exchange time, and helping to rapidly reduce mold temperature, ensuring the quality and uniform cooling of the molded plastic product.

[0053] Please refer to Figure 2 In one embodiment, the air pump 400 and the blower 600 are both fixedly connected to the main body 100. The injection mold 10 with the water blowing device is provided with a fixing member 120, and the second water pipe 220 is provided on the fixing member 120.

[0054] Specifically, the air pump 400 and the blower 600 are both fixedly connected to the main body 100 to ensure that the air pump 400 and the blower 600 are stable and do not shift during operation, avoiding damage to the device or affecting the water blowing effect due to vibration or external force. The fixing component 120 is fixedly set on the main body 100, and the second water pipe 220 is installed on the main body 100 through the fixing component 120, making the installation of the second water pipe 220 within the mold body 100 more stable and preventing the second water pipe 220 from shifting or loosening due to coolant flow or external force.

[0055] Please refer to Figure 1 In one embodiment, a flow guiding device 900 is provided between the blower 600 and the air blowing pipe 300. The flow guiding device 900 is used to guide the airflow output by the blower 600 to improve the stability of the airflow entering the first water pipe 210 and the water blowing effect.

[0056] Specifically, a flow guiding device 900 is provided between the blower 600 and the air blowing pipe 300. The flow guiding device 900 is used to guide the airflow output by the blower 600, so that the airflow flows more stably and orderly when it enters the air blowing pipe 300, thereby reducing airflow turbulence and pressure loss.

[0057] The above description of the disclosed embodiments enables those skilled in the art to make or use this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An injection mold with water blowing device, comprising a main body and a cooling water path, the main body is provided with a mold cavity for containing molten plastic, the cooling water path is arranged on the main body, the cooling water path comprises a first water pipe and a second water pipe, the first water pipe is arranged in the main body, one end of the first water pipe is provided with a water outlet, the other end of the first water pipe is communicated with the second water pipe, one end of the second water pipe away from the connecting position of the first water pipe is provided with a water inlet, characterized in that, The injection mold with the water blowing device further comprises: a blowing pipe in communication with the second water pipe; an air pressure pump in communication with one end of the blowing pipe away from the second water pipe; an air pressure tank in communication with the blowing pipe, the air pressure pump delivering external air into the air pressure tank to increase the air pressure in the air pressure tank; a fan in communication with the blowing pipe and located at one end of the air pressure tank away from the first filter; a first filter provided on the fan and in communication with the blowing pipe; a first valve provided on the second water pipe; a second valve provided on the blowing pipe and located between the first water pipe and the fan; when the first valve is opened and the second valve is closed, the cooling liquid can flow from the water inlet to the second water pipe and the first water pipe in sequence and flow out from the water outlet to cool the plastic in the mold cavity; when the first valve and the second valve are both opened, the fan is started, and at the same time, the air pressure in the air pressure tank is released to blow the high-pressure airflow in the air pressure tank and the airflow output by the fan together through the first filter into the first water pipe and the second water pipe, thereby increasing the wind power blown into the cooling water path.

2. The injection mold with a water removal device according to claim 1, wherein when the first valve is closed and the second valve is opened, the fan is started, and at the same time, the air pressure in the air pressure tank is released to blow the high-pressure airflow in the air pressure tank and the airflow output by the fan together through the first filter into the first water pipe, thereby increasing the wind power blown into the first water pipe.

3. The injection mold with a water removal device of claim 1, wherein, The injection mold with the water blowing device further comprises a second filter in communication with the blowing pipe, the second filter being located between the air pressure pump and the air pressure tank.

4. The injection mold with a water removal device of claim 1, wherein, The first water pipe is distributed in the main body in a plurality of U-shaped backflow structures.

5. The injection mold with a water removal device of claim 2, wherein, The air pressure pump and the fan are fixedly connected with the main body.

6. The injection mold with a water removal device of claim 5, wherein, The injection mold with the water blowing device is provided with a fixing member provided on the main body, and the second water pipe is provided on the fixing member.

7. The injection mold with a water removal device of claim 2, wherein, A flow guide device is provided between the fan and the blowing pipe, the flow guide device being used to guide the airflow output by the fan to improve the stability of the airflow entering the first water pipe and the water blowing effect.

8. The injection mold with a water removal device of claim 1, wherein, An air pressure monitoring device is provided on the air pressure tank to monitor the air pressure state in the air pressure tank in real time.

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