Device capable of removing residual water in cooling water channel of injection mold

Abstract

The utility model discloses a device capable of removing residual water in a cooling waterway of an injection mold in the technical field of injection molding. The device comprises an injection molding machine body, the injection molding machine body comprises a water inlet end and a water return end, the water inlet end is connected with a water inlet pipe, the water inlet pipe is communicated with an air inlet pipe, the air inlet pipe is provided with a first ball valve, and the water inlet pipe is further provided with a first stop valve; the water return end is connected with a water return pipe, and a second stop valve and a second ball valve are arranged on the water return pipe. According to the scheme, residual water in the cooling water path in the injection mold can be quickly and efficiently discharged.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molding, in particular to a device capable of removing residual water in a cooling water channel of an injection mold. Background Art

[0002] After completing a production run, injection molds need to be removed from the injection molding machine and moved to a designated mold storage area. If a large amount of cooling water remains in the mold's cooling circuit, if it's not cleaned promptly, the waterways can rust and shorten the mold's lifespan. Worse still, residual cooling water can seep into the mold's forming surface, causing rust in the cavity and ultimately rendering the mold useless.

[0003] Currently, the commonly used method is to use high-pressure gas to purge the mold's cooling water channels, thereby forcing the residual cooling water out. This process requires connecting each group of water channels to the air pipe one by one according to the specific grouping of the mold cooling water channels, and then turning on the air source to start the purge. Generally speaking, each purge takes about five minutes to complete. During this process, the air pressure needs to be manually adjusted. If the air pressure is too high, dirty water will splash, contaminating the floor and equipment, and dripping will be difficult to control. If the air pressure is too low, the residual water in the water channel cannot be completely removed, increasing the risk of mold rust. After each purge, the site must be cleaned, which undoubtedly adds additional time and cost.

[0004] In order to improve efficiency and reduce pollution risks, it is necessary to improve the existing purging method to ensure that the residual cooling water can be effectively removed while avoiding unnecessary environmental pollution and time waste. Utility Model Content

[0005] The utility model aims to provide a device for removing residual water from a cooling water channel of an injection mold, so as to solve the problem that it takes a long time to remove the residual water from the cooling water channel of the existing injection mold.

[0006] A device in this scheme can remove residual water in the cooling water path of an injection mold, including an injection molding machine body, the injection molding machine body including a water inlet end and a water return end, the water inlet end is connected to a water inlet pipe, the water inlet pipe is connected to an air inlet pipe, a first ball valve is provided on the air inlet pipe, and a first stop valve is also provided on the water inlet pipe; the return water end is connected to a return water pipe, and a second stop valve and a second ball valve are provided on the return water pipe.

[0007] Furthermore, the outer end of the first ball valve is connected to an air compressor, and the water is connected to the cooling water system of the injection molding machine body after diversion.

[0008] Furthermore, the outer end of the first stop valve is connected to a water chiller. The first stop valve is connected to the water inlet of the water chiller, and the water is connected to the cooling water system of the injection molding machine body after the water is diverted.

[0009] Furthermore, the outer end of the second ball valve is connected to a sewage collection bucket, and the water is connected to the cooling water system of the injection molding machine body after diversion.

[0010] Furthermore, the outer end of the second stop valve is connected to the return water end of the chiller. After the water is diverted, it is connected to the cooling water system of the injection molding machine body.

[0011] Furthermore, the air inlet pipe adopts a PE hose with a diameter of 12 mm, and the water inlet pipe adopts a PE hose with a diameter of 10 mm.

[0012] The working principle and beneficial effects of this solution are as follows: When preparing to blow water into the mold after removing it from the injection molding machine, close the first and second stop valves, open the second ball valve, then connect 0.7MPa high-pressure gas. Slowly open the first ball valve. After a period of ventilation, close the first ball valve. This will then clear any remaining water from the mold's waterway. To supply water to the mold, close the first and second ball valves, open the second stop valve, and then slowly open the first stop valve. The use of fixed airway connectors reduces air leakage, maintains stable air pressure, increases water blowing efficiency by 60%, and keeps the waterway clean and rust-resistant, saving three minutes of air connection time per mold change.

[0013] This solution utilizes the powerful kinetic energy of high-pressure gas to quickly blow out residual moisture in the mold's water channels, thereby achieving the desired removal. Precise gas control is achieved through the combined use of the first and second ball valves, as well as the first and second stop valves. First, close the first and second stop valves and open the second ball valve to ensure that high-pressure gas enters the mold only through the intended path. By controlling the opening and closing times of the first ball valve, the gas is guaranteed to have sufficient action time to clear any residual moisture from the mold. High-pressure gas not only removes moisture but also reduces the humidity inside the mold to a certain extent, thereby reducing the possibility of rust.

[0014] This solution has five effects: 1. Improve efficiency: The water blowing efficiency has been increased by 60%, which significantly shortens the time for cleaning the mold water channel and makes the production process more efficient. 2. Reduce air leakage: The fixed air channel joint design effectively reduces air leakage caused by loose connections and ensures the safety and stability of operation. 3. Extend the life of the mold: By regularly cleaning the mold water channel, corrosion problems caused by residual moisture are avoided, thereby extending the service life of the mold. 4. Save time: Each time the mold is changed, the optimized valve control system can save about 3 minutes of air connection time, which is especially beneficial for production scenarios where molds are frequently changed. 5. Easy to operate: The whole process is simple and easy, without the need for complicated equipment adjustments. Just follow the prescribed steps to complete it. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1The utility model is a structural schematic diagram of a device capable of removing residual water from the cooling water channel of an injection mold. DETAILED DESCRIPTION

[0016] The following is a further detailed description through specific implementation methods:

[0017] The reference numerals in the drawings of the specification include: first ball valve 1, first stop valve 2, second ball valve 3, second stop valve 4, cooling water system 5, water inlet end 6, return water end 7, water inlet pipe 8, air inlet pipe 9, first branch pipe 10, return water pipe 11, second branch pipe 12, and drain pipe 13.

[0018] The embodiment is basically as shown in the attached Figure 1 As shown: A device for removing residual water in the cooling water path of an injection mold, comprising an injection molding machine body, the injection molding machine body comprising a cooling water path system 5, the cooling water path system 5 being provided with a water inlet end 6 and a water return end 7, the water inlet end 6 being connected to a water inlet pipe 8, the water inlet pipe 8 being a PE hose with a diameter of 10 mm, the water inlet pipe 8 being connected to an air inlet pipe 9 and a first branch pipe 10, the air inlet pipe 9 being a PE hose with a diameter of 12 mm, the air inlet pipe 9 being provided with a first ball valve 1, the outer end of the first ball valve 1 being connected to an air compressor, the first branch pipe 10 being further provided with a first stop valve 2, the outer end of the first stop valve 2 being connected to a chiller (the chiller is prior art and not shown in the figure), the first stop valve 2 being connected to the water inlet end 6 of the cooling water;

[0019] The return water end 7 is connected to the return water pipe 11, which adopts a PE hose with a diameter of 10 mm. The return water pipe 11 is connected to the drain pipe 13 and the second branch pipe 12. The drain pipe 13 is provided with a second ball valve 3. The outer end of the second ball valve 3 is connected to the sewage collection bucket (the sewage collection bucket is the existing technology, so it is not drawn in the figure). The second branch pipe 12 is provided with a second stop valve 4, and the outer end of the second stop valve 4 is connected to the return water end 7 of the chiller.

[0020] The powerful kinetic energy of high-pressure gas is used to quickly blow out any residual moisture in the mold's waterways, thereby achieving the desired removal. The combination of first and second ball valves 1, 3, and first and second stop valves 2, 4 allows for precise control of the gas flow. First, close first and second stop valves 2, 4, and open second ball valve 3 to ensure that high-pressure gas enters the mold only through the intended path. By controlling the opening and closing times of first ball valve 1, the gas is guaranteed to have sufficient action time to clear any residual moisture from the mold. High-pressure gas not only removes moisture but also reduces the humidity inside the mold, thereby reducing the likelihood of rust.

[0021] The above is only an embodiment of the present invention, and the commonly known specific structures and characteristics of the scheme are not described in detail here. It should be pointed out that for those skilled in the art, several modifications and improvements can be made without departing from the structure of the present invention, and these should also be regarded as the scope of protection of the present invention. These will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection claimed by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A device for removing residual water from the cooling water channel of an injection mold, characterized in that: The injection molding machine comprises an injection molding machine body, which comprises a water inlet end and a water return end. The water inlet end is connected to a water inlet pipe, which is connected to an air inlet pipe, which is provided with a first ball valve, and the water inlet pipe is also provided with a first stop valve; the return water end is connected to a return water pipe, which is provided with a second stop valve and a second ball valve.

2. The device for removing residual water from a cooling water channel of an injection mold according to claim 1, characterized in that: The outer end of the first ball valve is connected to an air compressor.

3. The device for removing residual water from a cooling water channel of an injection mold according to claim 2, wherein: The outer end of the first stop valve is connected to a chiller.

4. The device for removing residual water from a cooling water channel of an injection mold according to claim 3, wherein: The outer end of the second ball valve is connected to a sewage collection bucket.

5. The device for removing residual water from the cooling water channel of an injection mold according to claim 4, characterized in that: The outer end of the second stop valve is connected to the return water end of the chiller.

6. The device for removing residual water from a cooling water channel of an injection mold according to claim 5, characterized in that: The air inlet pipe uses a PE hose with a diameter of 12mm, and the water inlet pipe uses a PE hose with a diameter of 10mm.

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