Mould water blowing device

Abstract

The utility model relates to the technical field of injection molding machine molds, in particular to a mold water blowing device which comprises a mold, a water row, a cooling water mechanism, an air source water blowing mechanism, a water outlet and an air inlet, a plurality of pipelines are arranged in the water row and communicated with water pulling openings of the mold one by one, and the cooling water mechanism is connected outside the water row and used for conveying cooling water to the mold through the water row. The water drain is communicated with the air source water blowing mechanism through a transmission pipe, the transmission pipe is provided with a third valve, the water drain is communicated with the water drainage port through a water drainage pipe, the water drainage pipe is provided with a fourth valve, the air source water blowing mechanism is communicated with the air inlet through an air inlet pipe, and the air inlet pipe is provided with a compressed air valve for closing the first valve and the second valve; and a third valve and a fourth valve are opened, then a start button is pressed down, whether a green indicator light is turned on or not is observed, and after the green indicator light is turned on, stored water in the mold and the pipeline can be collected, so that the influence of the stored water on the service life of the mold is avoided.

Description

Technical Field

[0001] This utility model relates to the field of injection molding machine mold technology, and in particular to a mold blowing device. Background Technology

[0002] To accelerate cooling, injection molds typically have internal cooling water channels. After production, water remains in these channels, causing the mold to rust when idle and resulting in high maintenance costs. Therefore, a water blowing device is needed to quickly remove the residual water. However, existing water blowing devices have fixed and non-adjustable air outlets, which cannot seal the cooling water channel ports with different diameters. This causes some air to leak from the cooling water channel connections when the device blows water, affecting the blowing effect.

[0003] The prior art CN214562515U discloses a water blowing device for injection molds. First, the front end of the air outlet pipe is inserted into the port of the cooling water circuit. Then, a servo motor drives the threaded rod to rotate, causing the movable block to move forward on the threaded rod. At the same time, a straight rod pushes the piston in the cylinder, forcing the air in the cylinder from the duct into the rubber air bag. At this time, the rubber air bag expands and abuts against the inner wall of the cooling water circuit port, thereby achieving a sealed connection to prevent air leakage at the joint and ensure the water blowing effect of the equipment. This device is worth promoting.

[0004] However, when the water blowing device mentioned above is used to replace the mold water pipe, water flows out of the mold and pipe. This location cannot be collected with a bucket or other container, and all of it flows onto the non-operating side steel strip and the frame of the mold closing part of the injection molding machine. Over time, this causes the grease on the steel strip to deteriorate, the steel strip and scraper copper plate to be damaged, and the frame to corrode. Repair and debugging are difficult, time-consuming, and costly, thus reducing the service life of the equipment. Utility Model Content

[0005] The purpose of this utility model is to provide a mold water blowing device, which aims to solve the technical problem that when the existing water blowing device is used to replace the mold water pipe, the water in the mold and the pipe flows out, which causes the grease on the steel strip to deteriorate, the steel strip and scraper copper plate to be damaged, the frame to be corroded, and the maintenance and debugging to be difficult, time-consuming and costly, thus reducing the service life of the equipment.

[0006] To achieve the above objectives, this utility model provides a mold water blowing device, including a mold, a water drain, a cooling water mechanism, an air source water blowing mechanism, a drain outlet, and an air inlet. The water drain has multiple pipes connected to the water outlets of the mold. The cooling water mechanism is connected to the outside of the water drain for transmitting cooling water to the mold and for the return of cooling water within the mold. The water drain is connected to the air source water blowing mechanism via a transmission pipe, which has a third valve. The water drain is connected to the drain outlet via a drain pipe, which has a fourth valve. The air source water blowing mechanism is connected to the air inlet via an air inlet pipe, which has a compressed air valve.

[0007] The cooling water mechanism includes a cooling water inlet pipe and a cooling water return pipe, which are respectively connected to the inlet and outlet of the water drain. The cooling water inlet pipe and the cooling water return pipe are respectively equipped with a first valve and a second valve.

[0008] The air source blowing mechanism includes a solenoid valve Y and a pressure regulating filter, and the transmission pipe, the solenoid valve Y, the pressure regulating filter and the air inlet pipe are connected in sequence.

[0009] The air source water blowing mechanism further includes a one-way valve, which is connected to the transmission pipe and the solenoid valve Y, and is located between the transmission pipe and the solenoid valve Y.

[0010] The solenoid valve Y is equipped with an intermediate relay and a time relay. The time relay is used to time the drainage, and the intermediate relay is used to control the energization or de-energization state of the coil of the solenoid valve Y.

[0011] This utility model discloses a mold water blowing device. The water drain, cooling water mechanism, and air source water blowing mechanism are installed at the mold and connected to the wiring. Then, the first and second valves are closed, and the third and fourth valves are opened. The start button is pressed, and the green indicator light is observed. After the green indicator light illuminates, a wastewater collection bucket is placed at the drain outlet to collect water from the mold and pipes. This prevents water from affecting the mold's lifespan. It solves the technical problem of existing water blowing devices where water flows out of the mold and pipes during mold replacement, leading to deterioration of grease on the steel strip, damage to the steel strip and scraper copper plate, frame corrosion, and making maintenance and debugging difficult, time-consuming, and costly, thus reducing the equipment's lifespan. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0013] Figure 1 This is a diagram of the air circuit of the mold blowing device according to the first embodiment of this utility model.

[0014] Figure 2 This is an electrical circuit diagram of the pressure regulating filter of the mold blowing device according to the first embodiment of this utility model.

[0015] Figure 3 This is the electrical circuit diagram of the solenoid valve Y of the mold blowing device according to the first embodiment of this utility model.

[0016] In the diagram: 101-Mold, 102-Water drain, 103-Drain outlet, 104-Air inlet, 105-Cooling water inlet pipe, 106-Cooling water return pipe, 108-Pressure regulator filter, 109-Check valve, 110-Transmission pipe, 111-Third valve, 112-Drain pipe, 113-Fourth valve, 114-Air inlet pipe, 115-Compressed air valve, 116-Water inlet, 117-Water outlet, 118-First valve, 119-Second valve, QF-Air switch, PW-Pressure regulator filter adjustment gauge, KA-Intermediate relay, KT-Time relay, HL-Green indicator light, Y-Solenoid valve Y, SB1-Stop button, SB2-Start button. Detailed Implementation

[0017] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0018] First Embodiment

[0019] See also Figures 1 to 3 , Figure 1 This is a diagram of the air circuit of the mold blowing device according to the first embodiment of this utility model. Figure 2 This is an electrical wiring diagram of the pressure regulating filter 108 of the mold blowing device according to the first embodiment of this utility model. Figure 3 This is the electrical circuit diagram of the solenoid valve Y of the mold blowing device according to the first embodiment of this utility model.

[0020] This utility model provides a mold water blowing device, including a mold 101, a water drain 102, a cooling water mechanism, an air-source water blowing mechanism, a drain outlet 103, and an air inlet 104. The cooling water mechanism includes a cooling water inlet pipe 105 and a cooling water return pipe 106. The air-source water blowing mechanism includes a solenoid valve Y, a pressure regulating filter 108, and a one-way valve 109. This solution solves the problem of existing water blowing devices where, when changing the mold 101 and removing the water pipe, water flows out of the mold 101 and the pipes, causing grease on the steel strip to deteriorate, damaging the steel strip and scraper copper plate, corroding the frame, and resulting in difficult, time-consuming, and costly maintenance and debugging, thus reducing the service life of the equipment. It is understood that the aforementioned solution can be used in scenarios where residual moisture in the cooling water circuit is quickly removed after the injection mold 101 has finished production.

[0021] In this embodiment, the water drain 102, the cooling water mechanism, and the air source blowing mechanism are installed at the mold 101 and the wiring is completed. Then, the first valve 118 and the second valve 119 are closed, the third valve 111 and the fourth valve 113 are opened, and the start button is pressed. Observe whether the green indicator light is on. After the green indicator light is on, place the wastewater collection bucket at the drain outlet 103 to collect the water in the mold 101 and the pipes. This avoids the water in the mold 101 and the pipes affecting the service life of the mold 101. This solves the technical problem of existing blowing devices where water flows out of the mold 101 and the pipes when the water pipe is removed from the mold 101, causing the grease on the steel strip to deteriorate, the steel strip and scraper copper plate to be damaged, the frame to corrode, and the maintenance and debugging to be difficult, time-consuming, and costly, thus reducing the service life of the equipment.

[0022] The water drain 102 contains multiple pipes that connect to the water outlets of the mold 101. A cooling water mechanism is connected to the outside of the water drain 102 to transfer cooling water to the mold 101 and to facilitate the return of cooling water within the mold 101. The water drain 102 is connected to the air-source water blowing mechanism via a transmission pipe 110, which has a third valve 111. The water drain 102 is connected to the drain outlet 103 via a drain pipe 112, which has... There is a fourth valve 113. The air source blowing mechanism is connected to the air inlet 104 through an air inlet pipe 114. The air inlet pipe 114 has a compressed air valve 115. The third valve 111 is a blowing valve. The third valve 111 can control the opening or closing of the channel of the transmission pipe 110. The fourth valve 113 is a drain valve. The fourth valve 113 can control the opening or closing of the channel of the drain pipe 112. The compressed air valve 115 can control the opening or closing of the channel of the air inlet pipe 114.

[0023] Secondly, the cooling water inlet pipe 105 and the cooling water return pipe 106 are respectively connected to the inlet 116 and outlet 117 of the water drain 102. The cooling water inlet pipe 105 and the cooling water return pipe 106 are respectively equipped with a first valve 118 and a second valve 119. The first valve 118 is an inlet valve, which can control the opening or closing of the channel of the cooling water inlet pipe 105. The second valve 119 is a return valve, which can control the opening or closing of the channel of the cooling water return pipe 106.

[0024] Furthermore, the transmission pipe 110, the solenoid valve Y, the pressure regulating filter 108, and the air inlet pipe 114 are connected in sequence. The one-way valve 109 is connected to the transmission pipe 110 and the solenoid valve Y respectively, and is located between the transmission pipe 110 and the solenoid valve Y. The one-way valve 109 is used to realize the one-way flow of airflow to prevent the airflow from flowing back to the air inlet 104.

[0025] Finally, the solenoid valve Y is equipped with an intermediate relay and a time relay. The time relay is used to time the drainage, and the intermediate relay is used to control the energization or de-energization state of the coil of the solenoid valve Y.

[0026] When using this utility model, the cooling water mechanism and the air source blowing mechanism are respectively connected to the water drain 102, and the water drain 102 is connected to the mold 101. Thus, the water drain 102, the cooling water mechanism, and the air source blowing mechanism can be installed near the mold 101. After installation, the air source at the air inlet 104 is turned on, the pressure regulating filter 108 is adjusted to 0.4MPa, and the air switch QF is closed to supply power, so that the air source can enter the air inlet pipe 114 from the air inlet 104 and be filtered at the pressure regulating filter 108.

[0027] When mold changing is required, close the first valve 118 and the second valve 119, open the third valve 111 and the fourth valve 113, and place the wastewater collection bucket at the drain outlet 103 to collect the blown mold 101 and the water stored in the pipe. Then, press the start button SB2 to energize the coils of the intermediate relay KA and the time relay KT. At this time, the normally open contacts of the intermediate relay KA close, energizing the coil of the solenoid valve YY. Simultaneously, the green indicator light HL lights up, opening the air path of the solenoid valve YY. This allows the air source filtered at the pressure regulating filter 108 to pass through the solenoid valve YY, enter the transmission pipe 110, and then enter through the third valve 111 of the transmission pipe 110. After passing through the mold 101 and the fourth valve 113, the mold 101 and the water stored in the pipe 102 are drained into the wastewater collection bucket.

[0028] After the time relay has been running for 2 minutes, the water in the mold 101 and the pipes is drained. At this time, the delay switch of the time relay KT will open, causing the coils of the intermediate relay KA and the time relay KT to be de-energized. At this time, all normally open contacts of the intermediate relay KA will open, thereby de-energizing the coil of the solenoid valve YY. Simultaneously, the green indicator light HL will go out, thus shutting off the air supply and preventing it from being transmitted to the transmission pipe 110. Afterward, close the third valve 111 and the fourth valve 113 (in case of air leakage or emergency, the stop button SB1 can be pressed directly to disconnect the control circuit and cut off the air supply). Disconnect all water pipes from the mold 101 and the water drain 102 to start mold changing. After the mold changing is completed and all connecting water pipes are reconnected, open the first valve 118 and the second valve 119 to enter the production state. This method should be followed every time a mold is changed.

[0029] The above-disclosed embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Those skilled in the art can understand that implementing all or part of the above-described embodiments and making equivalent changes in accordance with the claims of the present utility model are still within the scope of the utility model.

Claims

1. A mold blowing device, comprising a mold, characterized in that, It also includes a water drain, a cooling water mechanism, an air source blowing mechanism, a drain outlet, and an air inlet. The water drain has multiple pipes connected to the water outlet of the mold. The cooling water mechanism is connected to the outside of the water drain for transmitting cooling water to the mold and for the return of cooling water in the mold. The water drain is connected to the air source blowing mechanism through a transmission pipe with a third valve. The water drain is connected to the drain outlet through a drain pipe with a fourth valve. The air source blowing mechanism is connected to the air inlet through an air inlet with a compressed air valve.

2. The mold blowing device as described in claim 1, characterized in that, The cooling water mechanism includes a cooling water inlet pipe and a cooling water return pipe, which are respectively connected to the inlet and outlet of the water drain. The cooling water inlet pipe and the cooling water return pipe are respectively equipped with a first valve and a second valve.

3. The mold blowing device as described in claim 1, characterized in that, The air source water blowing mechanism includes a solenoid valve Y and a pressure regulating filter, and the transmission pipe, the solenoid valve Y, the pressure regulating filter and the air inlet pipe are connected in sequence.

4. The mold blowing device as described in claim 3, characterized in that, The air source blowing mechanism also includes a one-way valve, which is connected to the transmission pipe and the solenoid valve Y respectively, and is located between the transmission pipe and the solenoid valve Y.

5. The mold blowing device as described in claim 3, characterized in that, The solenoid valve Y is equipped with an intermediate relay and a time relay. The time relay is used to time the drainage, and the intermediate relay is used to control the energization or de-energization state of the coil of the solenoid valve Y.

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