Demolding device for household appliance mold

Abstract

The utility model discloses a demoulding device for a household appliance mould, which relates to the technical field of household appliance moulds and comprises an upper fixing plate, a lower fixing plate and four guide rods, the four guide rods are respectively mounted on the inner wall surface of the upper fixing plate, the lower fixing plate is movably mounted outside the four guide rods, an air blowing structure is mounted on the upper wall surface of the lower fixing plate, and the air blowing structure is mounted on the lower wall surface of the lower fixing plate. An air guide structure is installed at the tail of the air blowing structure, a first demolding spraying structure is installed on the upper wall face of the upper fixing plate, and a second demolding spraying structure is installed on the lower wall face of the upper fixing plate. According to the utility model, through the external air blowing structure, a household appliance part after mold opening can be effectively cooled through external cold air, and then the household appliance part is blown off from the mold core through high-speed airflow, so that demolding is completed, and meanwhile, through the demolding spraying structure, uniform spraying of a demolding agent can be automatically completed, and the demolding efficiency is improved. And the demolding difficulty caused by the fact that the demolding agent is not uniformly sprayed in the mold core is avoided.

Description

Technical Field

[0001] This utility model relates to the field of household appliance mold technology, and in particular to a demolding device for household appliance molds. Background Technology

[0002] Appliance injection molds are molds used to produce plastic parts such as the outer casing and internal structural components of home appliances. Through the injection molding process, molten plastic is injected into the mold cavity, and after cooling and solidification, the desired plastic product is formed. Appliance injection molds are widely used in the home appliance industry and are key process equipment for achieving large-scale production of plastic products.

[0003] When the injection molding of home appliance parts is completed, the operator controls the injection molding machine to open the mold. At this time, the processed home appliance parts need to be demolded from the mold core. During this demolding process, there may be cases where the home appliance parts are stuck to the mold core and are difficult to remove. This is because the mold has been working for a long time and the internal cooling system temperature is too high, which causes the molded home appliance parts to not cool down completely, so they stick to the mold core. Another reason is that the operator did not spray the release agent evenly inside the mold core in the early stage, which also leads to demolding difficulties. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a demolding device for household appliance molds.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A demolding device for household appliance molds includes: an upper fixed plate, a lower fixed plate, and four guide rods. The four guide rods are respectively installed on the inner wall of the upper fixed plate, and the lower fixed plate is movably installed on the outside of the four guide rods. An air blowing structure is installed on the upper wall of the lower fixed plate, and an air guiding structure is installed at the tail of the air blowing structure. A first demolding spraying structure is installed on the upper wall of the upper fixed plate, and a second demolding spraying structure is installed on the lower wall of the upper fixed plate. The air blowing structure includes: an air blowing support frame, a plurality of air blowing bends, and a plurality of electrically controlled air valves. The air blowing support frame is installed on the upper wall of the lower fixed plate, the plurality of air blowing bends are respectively installed inside the air blowing support frame, and the plurality of electrically controlled air valves are respectively installed outside the air blowing bends.

[0007] The present invention is further configured such that the air guiding structure includes: an air distribution pipe and an air delivery hose; the air distribution pipe is installed at the tail end of a plurality of air blowing bends, and one end of the air delivery hose is installed at the tail end of the air distribution pipe.

[0008] The present invention is further configured such that the first demolding spraying structure includes: a first demolding spraying pipe, a first liquid pump, and a first atomizing nozzle; the first demolding spraying pipe is mounted on the upper wall of the upper fixed plate by a bracket, the first liquid pump is mounted on the outside of the first demolding spraying pipe, and the first atomizing nozzle is mounted on the head of the first demolding spraying pipe.

[0009] The present invention is further configured such that the second demolding spraying structure includes: a second demolding spraying pipe, a second liquid pump, and a second atomizing nozzle; the second demolding spraying pipe is mounted on the upper wall of the lower fixed plate by a bracket, the second liquid pump is mounted on the outside of the second demolding spraying pipe, and the second atomizing nozzle is mounted on the head of the second demolding spraying pipe.

[0010] The present invention is further configured such that the first atomizing nozzle is aligned with the center portion of the inner wall surface of the lower fixed plate.

[0011] The present invention is further configured such that the second atomizing nozzle is aligned with the center portion of the inner wall surface of the upper fixed plate.

[0012] The beneficial effects of this utility model are as follows: This utility model can effectively cool down the appliance parts after the mold is opened by using external air blowing structure and then blow the appliance parts off the mold core by high-speed airflow, thereby completing the demolding. At the same time, this utility model can automatically complete the uniform spraying of the demolding agent through the demolding spraying structure, avoiding demolding difficulties caused by the failure to uniformly spray the demolding agent inside the mold core. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of a demolding device for household appliance molds proposed in this utility model;

[0014] Figure 2 This is a schematic diagram of the air blowing and air guiding structure of a demolding device for household appliance molds proposed in this utility model;

[0015] Figure 3 This is a schematic diagram of the first demolding spraying structure of a demolding device for household appliance molds proposed in this utility model;

[0016] Figure 4 This is a schematic diagram of the second demolding spraying structure of a demolding device for household appliance molds proposed in this utility model.

[0017] In the diagram: 1. Upper fixing plate; 2. Lower fixing plate; 3. Guide rod; 4. Air blow support frame; 5. Air blow bend; 6. Electrically controlled air valve; 7. Air distribution pipe; 8. Air delivery hose; 9. First demolding spray pipe; 10. First liquid pump; 11. First atomizing nozzle; 12. Second demolding spray pipe; 13. Second liquid pump; 14. Second atomizing nozzle. Detailed Implementation

[0018] The technical solution of this patent will be further described in detail below with reference to specific embodiments.

[0019] The embodiments of this patent 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 are only used to explain this patent, and should not be construed as limiting this patent.

[0020] In the description of this patent, it should be understood that the terms “center,” “upper,” “lower,” “front,” “back,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this patent and simplifying the description, and do not indicate or imply that the device or element 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 patent.

[0021] In the description of this patent, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection or setting, a detachable connection or setting, or an integral connection or setting. Those skilled in the art can understand the specific meaning of the above terms in this patent according to the specific circumstances.

[0022] Reference Figure 1-4 A demolding device for household appliance molds includes: an upper fixed plate 1, a lower fixed plate 2, and four guide rods 3. The four guide rods 3 are respectively installed on the inner wall of the upper fixed plate 1, and the lower fixed plate 2 is movably installed on the outside of the four guide rods 3. An air blowing structure is installed on the upper wall of the lower fixed plate 2, and an air guiding structure is installed at the tail of the air blowing structure. A first demolding spraying structure is installed on the upper wall of the upper fixed plate 1, and a second demolding spraying structure is installed on the lower wall of the upper fixed plate 1. The air blowing structure includes: an air blowing support frame 4, a plurality of air blowing bends 5, and a plurality of electrically controlled air valves 6. The air blowing support frame 4 is installed on the upper wall of the lower fixed plate 2, the plurality of air blowing bends 5 are respectively installed inside the air blowing support frame 4, and the plurality of electrically controlled air valves 6 are respectively installed outside the air blowing bends 5. The air guiding structure includes: an air distribution pipe 7 and an air delivery hose 8. The air distribution pipe 7 is installed at the tail of the plurality of air blowing bends 5, and one end of the air delivery hose 8 is installed at the tail of the air distribution pipe 7.

[0023] Specifically, the first demolding spraying structure includes: a first demolding spraying pipe 9, a first liquid pump 10, and a first atomizing nozzle 11; the first demolding spraying pipe 9 is mounted on the upper wall of the upper fixed plate 1 by a bracket, the first liquid pump 10 is mounted on the outside of the first demolding spraying pipe 9, and the first atomizing nozzle 11 is mounted on the head of the first demolding spraying pipe 9, with the first atomizing nozzle 11 aligned with the center part of the inner wall of the lower fixed plate 2.

[0024] Specifically, the second demolding spraying structure includes: a second demolding spraying pipe 12, a second liquid pump 13, and a second atomizing nozzle 14; the second demolding spraying pipe 12 is mounted on the upper wall of the lower fixed plate 2 by a bracket, the second liquid pump 13 is mounted on the outside of the second demolding spraying pipe 12, and the second atomizing nozzle 14 is mounted on the head of the second demolding spraying pipe 12, with the second atomizing nozzle 14 aligned with the center portion of the inner wall of the upper fixed plate 1.

[0025] Working Principle: This utility model cannot be used alone. It requires the installation of other parts of the appliance mold inside, and then the utility model itself within an injection molding machine for normal operation. Before using this utility model, an external AC power supply and controller must be connected to the appliance in this utility model to provide energy and control logic. The operator connects the container containing the release agent to the first release spray pipe 9 and the second release spray pipe 12 via hoses, and connects the external air source and air delivery hose 8. During injection molding, after injection is completed, the lower fixed plate 2 moves away from the upper fixed plate 1 outside the four guide rods 3. At this time, all the electrically controlled air valves 6 open, and external high-pressure gas flows through the air delivery hose 8. Furthermore, the high-pressure cold air enters through the air distribution pipe 7 into several air blowing bends 5, blowing onto the injection-molded appliance parts, which can quickly cool down the appliance parts. Then, all the electronically controlled air valves 6 are closed, except for the electronically controlled air valve 6 of the middle air blowing bend 5, which is opened. When the external gas passes through only one air blowing bend 5, it will generate a relatively fast airflow, which can blow the appliance parts off from the inside of this utility model, thereby completing the demolding of the appliance parts. At this time, the additional injection molding process of the appliance is completed. Then, the first liquid pump 10 and the second liquid pump 13 start working respectively, and spray the release agent through the first release spray pipe 9 and the first atomizing nozzle 11, the second release spray pipe 12 and the second atomizing nozzle 14 respectively, so that the release agent can be sprayed into the mold core inside the upper fixed plate 1 and the lower fixed plate 2, so that the appliance parts undergoing the second injection molding process can be demolded better.

[0026] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A demolding device for a household appliance mold, comprising: The utility model provides a kind of moulding machine, including upper fixed plate (1), lower fixed plate (2) and four guide rods (3), four described guide rods (3) are respectively installed in the inner wall surface of upper fixed plate (1), and the lower fixed plate (2) is movably installed in the outside of four guide rods (3), it is characterized in that, the upper wall surface of the lower fixed plate (2) is equipped with air blowing structure, the tail of the air blowing structure is equipped with air guide structure, the upper wall surface of the upper fixed plate (1) is equipped with first demoulding spraying structure, and the lower wall surface of the upper fixed plate (1) is equipped with second demoulding spraying structure;The air blowing structure includes: air blowing support frame (4), several air blowing elbow pipes (5) and several electric control gas valves (6);The air blowing support frame (4) is installed in the upper wall surface of lower fixed plate (2), and several described air blowing elbow pipes (5) are respectively installed in the inside of air blowing support frame (4), and several described electric control gas valves (6) are respectively installed in the outside of air blowing elbow pipe (5).

2. The demolding device for a household appliance mold according to claim 1, characterized in that, The air guide structure includes: gas distribution pipe (7) and air hose (8);The tail of the gas distribution pipe (7) is installed in several air blowing elbow pipes (5), and one end of the air hose (8) is installed in the tail of gas distribution pipe (7).

3. The demolding device for a household appliance mold according to claim 1, characterized in that, The first demoulding spraying structure includes: first demoulding spraying pipe (9), first liquid pump (10) and first atomizing nozzle (11);The first demoulding spraying pipe (9) is installed in the upper wall surface of upper fixed plate (1) by support, the first liquid pump (10) is installed in the outside of first demoulding spraying pipe (9), and the first atomizing nozzle (11) is installed in the head of first demoulding spraying pipe (9).

4. The demolding device for a household appliance mold according to claim 1, characterized in that, The second demoulding spraying structure includes: second demoulding spraying pipe (12), second liquid pump (13) and second atomizing nozzle (14);The second demoulding spraying pipe (12) is installed in the upper wall surface of lower fixed plate (2) by support, the second liquid pump (13) is installed in the outside of second demoulding spraying pipe (12), and the second atomizing nozzle (14) is installed in the head of second demoulding spraying pipe (12).

5. The demolding device for a household appliance mold according to claim 3, characterized in that, The first atomizing nozzle (11) is aligned with the center part of the inner wall surface of lower fixed plate (2).

6. The demolding device for a household appliance mold according to claim 4, characterized in that, The second atomizing nozzle (14) is aligned with the center part of the inner wall surface of upper fixed plate (1).

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