Vacuum mold system for manufacturing motor insulation box

Abstract

The utility model relates to the technical field of manufacturing of motor parts, in particular to a vacuum die system for manufacturing a motor insulation box, which comprises a vacuum box, a forming die arranged in the vacuum box and a vacuumizing device communicated with the vacuum box. A detachable pouring mechanism is arranged on the mounting opening, the pouring mechanism is communicated with the pouring opening of the forming mold, and the edge of the pouring mechanism can be buckled with the edge of the mounting opening in a sealed mode. According to the vacuum mold system, an existing forming mold and a pouring mechanism are separated, and compared with a traditional mode that vacuumizing is conducted after pouring is completed, pouring can be conducted while vacuumizing is conducted, so that the trouble that the forming mold needs to be transferred into a vacuum box after pouring is omitted. In addition, the forming mold and the pouring mechanism are designed in a split mode, meanwhile, the pouring mechanism is used for blocking a mounting opening in the top of the vacuum box, and therefore two purposes can be achieved, and mold opening, vacuumizing and formed product taking-out in the later period are facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to motor parts manufacturing technical field, concretely relates to a vacuum mould system for motor insulation box manufacturing. BACKGROUND

[0002] During long time use, the large motor is in the environment which is relatively bad, the whole heat output is big, for this, the protection shell of the electric component on it is easy to appear damage, for example the insulation box of protection component. Generally for such situation, the existing insulation box circulating in the market is replaced, but the large motor is different from the existing conventional motor, the body difference is big, therefore the component type and size specification installed in the insulation box exist certain difference with the component installed in the conventional motor, and the large motor is generally the custom product, the replaceable spare part circulating in the market is relatively less, if customizing through the injection manufacturer, because the required quantity is extremely small, the large motor style of maintenance is more, leading to the mold opening and injection cost to be very high. Such situation leads to the maintenance worker when replacing the insulation box, only can buy the large insulation box or other plastic box in the market to reform, then again adapt the installation of the electric component on the large motor. For this, the large motor maintenance factory generally designs some injection equipment to open the mold and inject the required product, the injection equipment is generally relatively simple in structure, leading to the injection quality to be poor, easy to form the bubble and shrinkage cavity in the injection process. Therefore, it is urgent to design a simple forming equipment capable of improving the injection quality to solve the above problems. SUMMARY

[0003] In order to overcome one of the deficiencies of the prior art, the purpose of the present utility model is to provide a vacuum mold system for manufacturing motor insulation box, which has simple structure and good quality of molded products.

[0004] To solve the above problems, the technical scheme adopted by the utility model is as follows:

[0005] A vacuum mold system for manufacturing motor insulation box, comprising a vacuum box, a forming mold arranged in the vacuum box, and a vacuum pumping device communicating with the vacuum box, an installation port is arranged on the top of the vacuum box, a detachable pouring mechanism is arranged on the installation port, the pouring mechanism communicates with the pouring port of the forming mold, and the edge of the pouring mechanism can be sealed and buckled with the edge of the installation port.

[0006] Further, the pouring mechanism comprises a cover, a pouring bucket arranged on the cover, and a hot runner pipe communicating with the pouring bucket, the cover is buckled on the installation port, and the hot runner pipe communicates with the pouring port of the forming mold.

[0007] Further, the top of the vacuum box is provided with an annular groove on the edge of the mounting port, the edge of the cover is provided with a convex edge matched with the annular groove, and a sealing element is arranged in the annular groove and matched with the convex edge.

[0008] Further, the forming mold comprises a core seat and a pair of side molds hingedly arranged on two sides of the core seat, a mold core is arranged between the core seat and the two side molds, the two side molds can be buckled to each other and the mold core is covered in the two side molds, the upper ends of the two side molds are provided with injection notches, the two injection notches form an injection nozzle when the two side molds are buckled, the injection nozzle is communicated with a hot runner pipe, a plurality of suction holes are arranged on the outer periphery of the mold core, all the suction holes are communicated with a suction cavity at the bottom of the core seat, and the suction cavity is communicated with the internal space of the vacuum box.

[0009] Further, the opposite sides of the two side molds are respectively provided with positioning columns and positioning holes matched with each other.

[0010] Further, the two side molds are provided with surrounding edges on the outer edges of the injection notches, the two surrounding edges are buckled to form a limiting ring after the two side molds are buckled, and one end of the hot runner pipe is inserted into the limiting ring.

[0011] Further, the vacuum pumping device comprises a suction pump and a suction pipe, and the suction pump is communicated with the vacuum box through the suction pipe.

[0012] Further, the vacuum box is communicated with a pressure relief valve.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] The vacuum mold system for manufacturing the motor insulation box improves the vacuum box, separates the existing forming mold and the pouring mechanism, compared with the traditional vacuum pumping mode after pouring, the application can pour while pumping vacuum, so that the trouble of transferring the forming mold into the vacuum box after pouring is avoided. In addition, the split design of the forming mold and the pouring mechanism, and the sealing of the mounting port at the top of the vacuum box by the pouring mechanism, can realize one-step two-steps, that is, the split design is convenient for later mold opening, vacuum pumping and taking out the formed product, and the sealing of the vacuum box.

[0015] The utility model will be further described in detail in combination with the drawings and specific embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is the structure schematic diagram of the utility model embodiment;

[0017] Figure 2is a partial sectional view of the embodiment of the utility model;

[0018] Figure 3 is a structure schematic view of the forming die of the embodiment of the utility model;

[0019] Figure 4 is a sectional view of the forming die of the embodiment of the utility model.

[0020] Explanation of figure mark:

[0021] Vacuum box 10, installation mouth 11, annular groove 12, sealing element 13, pressure relief valve 14, forming die 20, core seat 21, side mould 22, mould core 23, injection notch 24, suction hole 25, suction cavity 26, surrounding edge 27, vacuumizing device 30, suction pump 31, suction pipe 32, pouring mechanism 40, buckle cover 41, pouring hopper 42, hot runner pipe 43, convex edge 44. Specific implementation

[0022] In order to make the utility model's purpose, technical scheme and advantage more clearly clear, following combining with the drawing and embodiment, the utility model is further detailedly explained.It should be understood that the specific embodiment described here is only used to explain the utility model, and is not used to limit the utility model.

[0023] Refer to Figures 1 to 4 The vacuum mould system for motor insulation box manufacturing shown in the figure, including vacuum box 10, the forming die 20 of setting in vacuum box 10 and with vacuum box 10 intercommunication's vacuumizing device 30, the top of vacuum box 10 is provided with installation mouth 11, the installation mouth 11 is provided with the pouring mechanism 40 of being able to detach, the pouring mechanism 40 with the pouring mouth of forming die 20 intercommunication, the edge of pouring mechanism 40 can be sealed with the edge of installation mouth 11 and buckle.

[0024] Wherein, forming die 20 is the existing forming die, and vacuumizing device 30 can be conventional vacuum equipment;In the present application, vacuum box 10 is slightly larger than forming die 20, which is beneficial to the removal of forming die 20.And between pouring mechanism 40 and the pouring mouth of forming die 20, after the material is injected, the two can realize sealing, avoid the leakage of vacuumizing device 30 when working, which leads to the insufficient vacuum degree in vacuum box 10.

[0025] In an embodiment of the present application, the vacuumizing device 30 includes a suction pump 31 and a suction pipe 32, and the suction pump 31 is connected to the vacuum box 10 through the suction pipe 32. In order to facilitate the staff to check the pressure value in the vacuum box 10, the vacuum box 10 is connected with a pressure relief valve 14.

[0026] The vacuum mold system for manufacturing motor insulation box improves the vacuum box 10, separates the existing forming mold 20 and pouring mechanism 40, compared with the traditional pouring and vacuumizing mode, the application can pour while vacuumizing, which saves the trouble of transferring the forming mold 20 into the vacuum box 10 after pouring. In addition, the split design of the forming mold 20 and the pouring mechanism 40, and the use of the pouring mechanism 40 to block the mounting port 11 at the top of the vacuum box 10, can achieve two purposes at once, that is, to realize split design, facilitate mold opening, vacuumizing and product removal in later period; and to realize the sealing of the vacuum box 10.

[0027] Referring to Figures 1 to 2 In an embodiment of the application, in order to facilitate the blocking of the mounting port 11 and enable the molten plastic outside to flow into the pouring port of the forming mold 20, the pouring mechanism 40 includes a cover 41, a pouring bucket 42 arranged on the cover 41, and a hot runner pipe 43 communicating with the pouring bucket 42, the cover 41 is buckled on the mounting port 11, and the hot runner pipe 43 communicates with the pouring port of the forming mold 20. Among them, the cover 41 and the pouring bucket 42 are split design, which can be disassembled, so as to facilitate the later cleaning of the hot runner pipe 43 and the water gap in the pouring bucket 42.

[0028] In order to make the edge of the cover 41 tightly buckle with the edge of the mounting port 11 and avoid leakage, in the improved embodiment of the application, an annular groove 12 is arranged on the edge of the mounting port 11 at the top of the vacuum box 10, the edge of the cover 41 is provided with a convex edge 44 matched with the annular groove 12, and a sealing element 13 is arranged in the annular groove 12, which can be matched with the convex edge 44. Among them, the side of the sealing element 13 close to the mounting port 11 extends to the edge of the mounting port 11, so as to facilitate abutting with the cover 41 and improve the sealing performance.

[0029] Referring to Figure 3 and Figure 4In an embodiment of the present application, in order to facilitate the design of the mold 20, the mold 20 comprises a core seat 21 and a pair of side molds 22 hingedly connected on both sides of the core seat 21, the core seat 21 is provided with a mold core 23 between the two side molds 22, the two side molds 22 can be buckled to each other and the mold core 23 is covered in the core seat 21, the upper end of each of the two side molds 22 is provided with an injection notch 24, the two injection notches 24 form an injection nozzle when the two side molds 22 are buckled, the injection nozzle is in communication with a hot runner pipe 43, a plurality of suction holes 25 are arranged on the outer periphery of the mold core 23, all the suction holes 25 are in communication with a suction cavity 26 at the bottom of the core seat 21, and the suction cavity 26 is in communication with the internal space of a vacuum box 10. The two side molds 22 and the core seat 21 are designed in a detachable structure, and the cooperation between the pin and the pin hole between each side mold 22 and the core seat 21 improves the flexibility of use. In fact, in order to stabilize the entire mold 20, a fixing seat is arranged in the vacuum box 10, and the core seat 21 is placed on the fixing seat. The core seat 21 is designed with a notch in communication with the suction cavity 26, and the fixing seat is also provided with a relief notch, which is beneficial to the vacuumizing device 30 for vacuumizing. In addition, the core seat 21 and the mold core 23 are also designed in a detachable structure, and the mold core 23 is movably inserted into the core seat 21. In addition, in order to prevent the two side molds 22 from being expanded by the molten glue during injection molding, a limiting hoop is further sleeved outside the two side molds 22.

[0030] Further, in order to facilitate assembly and positioning in the later stage, a positioning column and a positioning hole are arranged on the opposite sides of the two side molds 22 respectively, and the positioning column and the positioning hole can be adapted to each other.

[0031] In an improved embodiment, in order to facilitate the stable contact connection between the hot runner pipe 43 and the buckled two side molds 22, a surrounding edge 27 is arranged on the outer edge of the injection notch 24 of each of the two side molds 22, and the two surrounding edges 27 are buckled to form a limiting ring after the two side molds 22 are buckled, and one end of the hot runner pipe 43 is inserted into the limiting ring. The outer wall of the corresponding end of the hot runner pipe 43 abuts against the outer wall of the limiting ring. Of course, in some embodiments, a sealing ring is arranged on the outer wall of the corresponding end of the hot runner pipe 43, and the sealing ring is made of a high-temperature-resistant material.

[0032] The above-mentioned embodiments are only preferred embodiments of the present application, and cannot be used to limit the scope of protection of the present application. Any non-essential changes and replacements made by those skilled in the art on the basis of the present application all belong to the scope of protection required by the present application.

Claims

1. A vacuum mold system for electrical machine insulation box manufacturing, characterized by, The vacuum box is provided with a mounting port on the top thereof, and a detachable pouring mechanism is arranged on the mounting port, the pouring mechanism being communicated with a pouring port of the forming mold, and the edge of the pouring mechanism being capable of being sealed and buckled with the edge of the mounting port.

2. The vacuum mold system for manufacturing an electrical machine insulation box according to claim 1, characterized in that: The pouring mechanism comprises a buckle cover, a pouring bucket arranged on the buckle cover, and a hot runner pipe communicated with the pouring bucket, the buckle cover being buckled on the mounting port, and the hot runner pipe being communicated with the pouring port of the forming mold.

3. The vacuum mold system for manufacturing an electrical machine insulation box according to claim 2, characterized in that: An annular groove is arranged on the edge of the mounting port of the top of the vacuum box, the edge of the buckle cover is provided with a convex edge matched with the annular groove, and a sealing element is arranged in the annular groove and matched with the convex edge.

4. The vacuum mold system for manufacturing an electrical machine insulation box according to claim 2, wherein: The forming mold comprises a core seat and a pair of side molds respectively hinged on two sides of the core seat, a mold core is arranged between the core seat and the two side molds, the two side molds are capable of being buckled with each other and covering the mold core, the upper ends of the two side molds are provided with injection notches, the two injection notches form an injection nozzle when the two side molds are buckled, the injection nozzle is communicated with the hot runner pipe, a plurality of suction holes are arranged on the outer periphery of the mold core, all the suction holes are communicated with a suction cavity at the bottom of the core seat, and the suction cavity is communicated with the internal space of the vacuum box.

5. The vacuum mold system for manufacturing an electrical machine insulation box according to claim 4, characterized in that: A positioning column and a positioning hole are respectively arranged on the opposite sides of the two side molds, and the positioning column and the positioning hole are capable of being matched with each other.

6. The vacuum mold system for manufacturing an electrical machine insulation box according to claim 4, characterized in that: Surrounding edges are arranged on the outer edges of the two side molds, and the two surrounding edges are buckled with each other to form a limiting ring when the two side molds are buckled, and one end of the hot runner pipe is inserted into the limiting ring.

7. A vacuum mold system for manufacturing an electrical machine insulation box according to any one of claims 1-6, characterized in that: The vacuum device comprises a suction pump and a suction pipe, and the suction pump is communicated with the vacuum box through the suction pipe.

8. A vacuum mold system for manufacturing an electrical machine insulation box according to any one of claims 1-6, characterized in that: A pressure relief valve is communicated with the vacuum box.

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