CN223604898U - A vacuum mold system for manufacturing motor insulation boxes - Google Patents

Abstract

The utility model relates to the technical field of motor part manufacturing, 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, wherein the top of the vacuum box is provided with a mounting opening, the mounting opening is provided with a detachable pouring mechanism, the pouring mechanism is communicated with the pouring opening of the forming die, and the edge of the pouring mechanism can be buckled with the edge of the mounting opening in a sealing way. Compared with the traditional way of vacuumizing after pouring, the vacuum die system can perform pouring while vacuumizing, so that the trouble that the forming die needs to be transferred into a vacuum box after pouring is omitted. In addition, the split design of forming die and pouring mechanism utilizes pouring mechanism shutoff vacuum box top's installing port simultaneously, can realize two purposes like this, is convenient for open the mould in later stage, evacuation and take out the shaping product.

Description

Vacuum die system for manufacturing motor insulation box

Technical Field

The utility model relates to the technical field of motor part manufacturing, in particular to a vacuum die system for manufacturing a motor insulation box.

Background

In the long-term use process of the large motor, the environment is severe, the whole heat productivity is large, and therefore, the protective shell of the electrical element on the large motor is easy to damage, such as an insulating box for protecting components. Generally, aiming at the situation, the existing insulation boxes circulated in the market are purchased for replacement, but the large motor is different from the existing conventional motor in size, so that the types and the sizes of components installed in the insulation boxes are different from those of components installed in the conventional motor to a certain extent, the large motor is generally a customized product, the number of the replaced components circulated in the market is relatively small, if the large motor is customized by an injection manufacturer, the number of the required large motors is very small, the maintained large motor is more, and the mold opening and injection molding cost is very high. The situation causes that maintenance workers can only purchase large-scale insulation boxes or other plastic boxes on the market for transformation when maintaining and replacing the insulation boxes, and then the large-scale insulation boxes are matched with the installation of electrical elements on the large-scale motor. Therefore, large-scale motor maintenance manufacturers generally self-open the mould and perform injection molding to obtain the required product by self-designing some injection molding equipment, and the injection molding equipment is relatively simple in general structure, so that the quality of injection molding is poor, and bubbles and shrinkage cavities are easy to form in the injection molding process. Therefore, there is an urgent need to design a simple molding apparatus capable of improving injection molding quality to solve the above-mentioned problems.

Disclosure of utility model

In order to overcome one of the defects in the prior art, the utility model aims to provide a vacuum die system for manufacturing a motor insulation box, which is simple in structure and good in quality of formed products.

In order to solve the problems, the technical scheme adopted by the utility model is as follows:

The utility model provides a vacuum die system for making of motor insulation box, includes the vacuum box, sets up forming die in the vacuum box and with the evacuating device of vacuum box intercommunication, be provided with the installing port on the top of vacuum box, be provided with the pouring mechanism that can dismantle on the installing port, pouring mechanism with forming die's pouring port intercommunication, pouring mechanism's border can with the sealed lock in border of installing port.

Further, the pouring mechanism comprises a buckle cover, a pouring hopper arranged on the buckle cover and a hot runner pipe communicated with the pouring hopper, wherein the buckle cover is buckled on the mounting port, and the hot runner pipe is communicated with the pouring port of the forming die.

Further, an annular groove is formed in the edge of the mounting opening at the top of the vacuum box, a convex edge matched with the annular groove is formed in the edge of the buckle cover, and a sealing element is arranged in the annular groove and can be matched with the convex edge.

Further, the forming die comprises a core seat and a pair of side dies respectively hinged to two sides of the core seat, a die core is arranged between the two side dies, the two side dies can be mutually buckled and cover the die core in a period, injection gaps are formed in the upper ends of the two side dies, the two injection gaps are formed in the two side dies by buckling to form an injection nozzle, the injection nozzle is communicated with a hot runner pipe, a plurality of suction holes are formed in the periphery of the die core, and all the suction holes are communicated with a suction cavity at the bottom of the core seat, and the suction cavity is communicated with an inner space of a vacuum box.

Further, two opposite sides of the side mold are respectively provided with a positioning column and a positioning hole, and the positioning columns and the positioning holes can be mutually matched.

Further, two the side forms are located the outer edge of pouring into the breach and are provided with the edge, two after the side forms lock each other along two edge and form the spacing ring, the one end cartridge of hot runner pipe is in the spacing ring.

Further, the vacuum device comprises a suction pump and a suction pipe, wherein the suction pump is communicated with the vacuum box through the suction pipe.

Further, a pressure release valve is communicated with the vacuum box.

Compared with the prior art, the utility model has the beneficial effects that:

According to the vacuum mold system for manufacturing the motor insulation box, the vacuum box is improved, the existing forming mold and the pouring mechanism are separated, compared with a traditional mode of vacuumizing after pouring, pouring can be performed while vacuumizing is performed, and therefore the trouble that the forming mold needs to be transferred into the vacuum box after pouring is omitted. In addition, the split design of the forming die and the pouring mechanism is adopted, and the pouring mechanism is used for plugging the mounting opening at the top of the vacuum box, so that two purposes can be realized, the split design can be realized, the die opening, the vacuumizing and the taking out of the formed product can be conveniently carried out in the later stage, and the sealing of the vacuum box can be realized.

The utility model is described in further detail below with reference to the drawings and the detailed description.

Drawings

FIG. 1 is a schematic diagram of an embodiment of the present utility model;

FIG. 2 is a partial cross-sectional view of an embodiment of the present utility model;

FIG. 3 is a schematic view of a molding die according to an embodiment of the present utility model;

fig. 4 is a cross-sectional view of a molding die in an embodiment of the utility model.

Reference numerals illustrate:

The vacuum box 10, the mounting opening 11, the annular groove 12, the sealing element 13, the pressure release valve 14, the forming die 20, the core seat 21, the side die 22, the die core 23, the injection notch 24, the suction hole 25, the suction cavity 26, the surrounding edge 27, the vacuum pumping device 30, the suction pump 31, the suction pipe 32, the pouring mechanism 40, the buckle closure 41, the pouring hopper 42, the hot runner pipe 43 and the convex edge 44.

Detailed Description

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

Referring to fig. 1 to 4, a vacuum mold system for manufacturing a motor insulation box comprises a vacuum box 10, a forming mold 20 arranged in the vacuum box 10, and a vacuumizing device 30 communicated with the vacuum box 10, wherein a mounting opening 11 is formed in the top of the vacuum box 10, a detachable pouring mechanism 40 is arranged on the mounting opening 11, the pouring mechanism 40 is communicated with the pouring opening of the forming mold 20, and the edge of the pouring mechanism 40 can be buckled with the edge of the mounting opening 11 in a sealing manner.

The forming mold 20 may be an existing forming mold, and the vacuumizing device 30 may be a conventional vacuum device, and the vacuum box 10 is slightly larger than the forming mold 20 in the present application, so that the forming mold 20 is easy to be taken out. And the pouring mechanism 40 and the pouring opening of the forming die 20 can realize sealing after the materials are injected, so that the vacuum degree in the vacuum box 10 is not enough due to leakage of the vacuum pumping device 30 when the vacuum pumping device works.

In one embodiment of the application, the evacuation device 30 comprises a suction pump 31 and a suction tube 32, the suction pump 31 being in communication with the vacuum box 10 via the suction tube 32. In order to facilitate the operator to check the pressure value in the vacuum box 10, the vacuum box 10 is communicated with a pressure relief valve 14.

The vacuum mold system for manufacturing the motor insulation box improves the vacuum box 10, separates the existing forming mold 20 from the pouring mechanism 40, and compared with the traditional way of vacuumizing after pouring, the application can perform pouring while vacuumizing, thus eliminating the trouble of transferring the forming die 20 into the vacuum box 10 after pouring. In addition, the split design of the forming die 20 and the pouring mechanism 40 is utilized to block the mounting opening 11 at the top of the vacuum box 10, so that two purposes can be realized, split design is realized, die opening, vacuumizing and taking out of a formed product are facilitated in the later stage, and sealing of the vacuum box 10 is realized.

Referring to fig. 1 to 2, in one embodiment of the present application, in order to facilitate the blocking of the mounting port 11 and the enabling of the external molten plastic to flow into the pouring port of the molding die 20, the pouring mechanism 40 includes a buckle cover 41, a pouring hopper 42 provided on the buckle cover 41, and a hot runner pipe 43 communicating with the pouring hopper 42, the buckle cover 41 being buckled on the mounting port 11, the hot runner pipe 43 communicating with the pouring port of the molding die 20. The buckling cover 41 and the pouring hopper 42 are in a split design, and can be split, so that the hot runner pipe 43 and the water gap in the pouring hopper 42 can be cleaned conveniently at a later stage.

In order to enable the edge of the buckle cover 41 to be tightly buckled with the edge of the mounting opening 11, leakage is avoided, in a modified embodiment of the application, an annular groove 12 is arranged on the edge of the top of the vacuum box 10, which is positioned on the mounting opening 11, the edge of the buckle cover 41 is provided with a convex edge 44 matched with the annular groove 12, a sealing element 13 is arranged in the annular groove 12, and the sealing element 13 can be matched with the convex edge 44. Wherein, the side of the sealing element 13 near the mounting opening 11 extends to the edge of the mounting opening 11, thus being convenient for abutting with the buckle cover 41 and improving the tightness.

Referring to fig. 3 and 4, in one embodiment of the present application, for simplicity of design, the forming mold 20 includes a core holder 21 and a pair of side molds 22 hinged on both sides of the core holder 21, a mold core 23 is disposed between the two side molds 22, the two side molds 22 can be fastened to each other and cover the mold core 23 in the period, injection notches 24 are disposed at the upper ends of the two side molds 22, the two injection notches 24 are fastened to the two side molds 22 to form an injection nozzle, the injection nozzle is communicated with a hot runner pipe 43, a plurality of suction holes 25 are disposed on the outer circumference of the mold core 23, and all the suction holes 25 are communicated with a suction cavity 26 at the bottom of the core holder 21, and the suction cavity 26 is communicated with the inner space of the vacuum box 10. Wherein, two side forms 22 and core print 21 are detachable structural design, and the cooperation mode between bolt and the pinhole between every side form 22 and the core print 21 improves the flexibility of using. In fact, in order to stabilize the entire forming mold 20, a fixing seat is provided in the vacuum box 10, on which the core print 21 is placed. The bottom of the core seat 21 is provided with a notch communicated with the suction cavity 26, and meanwhile, the fixing seat is also provided with an avoidance notch, so that the vacuumizing device 30 is facilitated to vacuumize. In addition, the core holder 21 and the mold core 23 are also detachable, and the mold core 23 is movably inserted on the core holder 21. In order to avoid that the two side molds 22 are spread by the melted glue during injection, in practice, the two side molds 22 are also provided with a limiting collar.

Further, in order to facilitate the assembly and positioning in the later stage, positioning posts and positioning holes are respectively provided on opposite sides of the side dies 22, and the positioning posts and the positioning holes can be mutually adapted.

In an improved embodiment, in order to facilitate the hot runner pipe 43 to be firmly connected with the two buckled side dies 22 in a contact manner, the outer edges of the two side dies 22 located at the injection notch 24 are provided with surrounding edges 27, after the two side dies 22 are buckled, the two surrounding edges 27 are buckled with each other to form a limiting ring, and one end of the hot runner pipe 43 is inserted into the limiting ring. Wherein the outer wall of the corresponding end of the hot runner tube 43 is abutted with the outer wall of the limiting ring. Of course, in some embodiments, a sealing ring is disposed on an outer wall of a corresponding end of the hot runner tube 43, and the sealing ring is made of a high temperature resistant material.

The above embodiments are only preferred embodiments of the present utility model, and the scope of the present utility model is not limited thereto, but any insubstantial changes and substitutions made by those skilled in the art on the basis of the present utility model are intended to be within the scope of the present utility model as claimed.

Claims (8)

1. A vacuum die system for manufacturing a motor insulation box is characterized by comprising a vacuum box, a forming die arranged in the vacuum box and a vacuumizing device communicated with the vacuum box, wherein an installation opening is formed in the top of the vacuum box, a detachable pouring mechanism is arranged on the installation opening and communicated with the pouring opening of the forming die, and the edge of the pouring mechanism can be buckled with the edge of the installation opening in a sealing manner.

2. A vacuum mold system for manufacturing an insulation box of a motor according to claim 1, wherein the pouring mechanism comprises a buckle cover, a pouring hopper arranged on the buckle cover, and a hot runner pipe communicated with the pouring hopper, wherein the buckle cover is buckled on the mounting port, and the hot runner pipe is communicated with the pouring port of the molding mold.

3. A vacuum mould system for manufacturing a motor insulation box according to claim 2, wherein an annular groove is formed in the edge of the top of the vacuum box, which is located at the mounting opening, a convex edge matched with the annular groove is formed in the edge of the buckle cover, and a sealing element is arranged in the annular groove and can be matched with the convex edge.

4. A vacuum mould system for manufacturing a motor insulation box according to claim 2, wherein the forming mould comprises a core seat and a pair of side moulds hinged to two sides of the core seat respectively, a mould core is arranged between the two side moulds, the two side moulds can be mutually buckled and cover the mould core in the period, injection gaps are arranged at the upper ends of the two side moulds, the two injection gaps are buckled at the two side moulds to form an injection nozzle, the injection nozzle is communicated with a hot runner pipe, a plurality of suction holes are arranged on the periphery of the mould 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 inner space of a vacuum box.

5. A vacuum mould system for manufacturing an insulation box for a motor according to claim 4, wherein the two side moulds are provided with a positioning column and a positioning hole respectively on opposite sides, and the positioning column and the positioning hole can be mutually matched.

6. A vacuum mold system for manufacturing an insulation box of a motor according to claim 4, wherein the outer edges of the two side molds, which are positioned at the injection notch, are provided with surrounding edges, after the two side molds are buckled, the two surrounding edges are buckled with each other to form a limiting ring, and one end of the hot runner pipe is inserted into the limiting ring.

7. A vacuum mold system for motor insulation box manufacturing according to any of the claims 1-6, wherein the vacuum means comprises a suction pump and a suction pipe, the suction pump being in communication with the vacuum box through the suction pipe.

8. A vacuum mold system for manufacturing an insulation box for a motor according to any one of claims 1 to 6, wherein a pressure release valve is communicated with the vacuum box.