CN217073026U - Small hollow rapid heating propeller die - Google Patents

Abstract

The utility model relates to a combined material screw solidification technology field, the utility model discloses a small-size cavity rapid heating screw mould, its including the last mould, the lower mould that match to and die surface, be located a plurality of electric heating element in last mould and the lower mould, be located the glue guiding recess of die surface, be located the liquid outlet of mould, go up and form a wing section cavity behind the lower mould compound die, the glue guiding recess comprises the glue guiding recess that is located the mould and the glue guiding recess that is located the lower mould jointly, the glue guiding recess passes through V-arrangement passageway and external intercommunication, and V-arrangement passageway cross-sectional area reduces from inside to outside gradually, the part of going up the mould in the V-arrangement passageway is provided with the liquid outlet that stretches out, V-arrangement passageway lower mould part be provided with the lower mould sealing plug and with the lower mould sealing plug cooperation structure of lower mould sealing plug looks adaptation. The utility model has the advantages that: make the screw mould possess the self-heating function, reduced the appearance of the great volume cavity when leading gluey recess and using.

Description

Small-size cavity rapid heating screw mould

Technical Field

The utility model belongs to the technical field of combined material screw solidification technique and specifically relates to a small-size cavity rapid heating screw mould is related to.

Background

Unmanned vehicles rely on rotor blades to rotate the air flow, thereby powering the vehicle. The propeller is the most important power supply device of the aircraft, so the propeller capable of stably providing lift is the key for ensuring the reliable operation of the aircraft. Compared with the traditional metal propeller, the composite propeller has the advantages of light weight, high rigidity, low vibration, strong weather resistance, flexible design and the like. When the existing composite material propeller is cured, a curing mode that a mold is placed into a heating curing furnace for heating is mostly adopted, and two groups of glue guide grooves are arranged in the mold along the length direction of a blade-shaped cavity and used for solving the problem that redundant glue liquid cannot be discharged during curing. Meanwhile, the use of the glue guide groove also brings new problems, on one hand, the heat conducting performance of the air after the formed cavity is filled with air is greatly weakened compared with that of glue solution, the temperature of the inner wall of the glue guide groove at the air filling position is different from that of the inner wall of the glue guide groove at the glue solution filling position, on the other hand, when the mold is used, the air in the glue guide groove is in convection with the outside, so that part of heat in the glue guide groove is taken away by the convection air, the temperature in the glue guide groove is unevenly changed, and the uneven temperature change affects the forming temperature of the blade and the final blade forming quality because the glue guide groove is close to the wing-shaped cavity.

The existing propeller mould has the problem that the existing propeller mould does not have a self-heating function.

The existing propeller mould also has the problem that the glue guide groove forms a large-volume cavity after glue liquid flows out, and the large-volume cavity can influence the forming quality of the blade.

SUMMERY OF THE UTILITY MODEL

The problem of current combined material screw mould do not possess self-heating function to and lead gluey recess and form great volume cavity after flowing the glue solution, great volume cavity can influence the paddle shaping quality is solved in order to solve.

The utility model provides a small-size cavity rapid heating screw mould.

In order to achieve the above object, the embodiment of the present invention adopts the following technical solutions: the glue guiding device comprises an upper die and a lower die which are matched, wherein the surfaces of the upper die and the lower die, which are mutually attached, are matched die surfaces, glue guiding grooves are formed in the matched die surfaces, each glue guiding groove is provided with at least one liquid outlet, a plurality of electric heating elements are respectively arranged in the upper die and the lower die, and the bottoms of the liquid outlets of the glue guiding grooves are arranged to be higher than the bottoms of the glue guiding grooves.

This scheme adopts a plurality of electric heating element to the mould heating, and electric heating mode rate of heating is fast, can realize the rapid heating of mould, owing to abandoned traditional mode that uses heating furnace heating mould, has still realized the miniaturization of mould, the space that equipment occupy when having reduced the mould heating. The bottom of the liquid outlet of the glue guiding groove is higher than the bottom of the glue guiding groove, so that a part of unnecessary glue solution flowing out of the glue guiding groove can be reduced, the cavity volume of the glue guiding groove during the working of the mould is reduced, the temperature of the mould during the working is more uniform, and the forming quality of the paddle is improved.

Preferably, the glue guiding groove is arranged to surround the airfoil cavity. Compared with two groups of glue guide grooves arranged along the length direction of a blade cavity, the glue guide grooves surround the wing-shaped cavity, redundant glue solution in more directions of the joint surfaces can be contained when the mould is used, the surface of the wing-shaped cavity overflows, the upper mould and the lower mould cannot be attached smoothly due to excessive glue on the joint surfaces, the gap of the upper mould and the lower mould is too large and uneven, and the forming quality of the blade is affected.

Preferably, the liquid outlet of the glue guiding groove is arranged on the upper die part. The liquid outlet bottom that can make lead gluey recess is higher than the bottom of leading gluey recess like this, increases the degree of difficulty that the glue solution flows, solves in leading gluey recess because the glue solution outflows in a large number and leads to the great problem of cavity volume, makes the temperature in leading gluey recess more even.

Preferably, the glue guiding groove is communicated with the outside through a V-shaped channel, and the cross section area of the channel is gradually reduced from inside to outside. The difficulty that can increase like this and lead in the gluey recess glue solution and flow out reduces and leads in the gluey recess because the cavity volume that the glue solution outflows in a large number leads to, makes the temperature of leading in the gluey recess more even.

Preferably, the upper die part of the V-shaped channel is provided with a protruding liquid outlet communicated with the outside, and the liquid outlet is provided with a liquid outlet sealing plug matched with the liquid outlet. The liquid outlet that stretches out can make the glue solution of outflow on the mould body, makes the mould conveniently clear up after the use, and the liquid outlet sealing plug can seal the passageway when need not flowing the glue solution after the compound die is accomplished, solves the local heat loss problem that produces because of the air convection in external air and the glue guide groove during the use, makes the temperature of mould more even.

Preferably, the lower die part of the V-shaped channel is provided with a lower die sealing plug and a lower die sealing plug matching structure matched with the lower die sealing plug. The lower die sealing plug matching structure is used for connecting a lower die sealing plug, the lower die sealing plug can prevent glue solution from flowing out when the die works, and the sealing plug can be taken down to facilitate the washing of the die when the die is used up and cleaned.

Preferably, a plurality of positioning grooves are formed in the mating surface of the upper die, and a plurality of positioning projections corresponding to the positioning grooves of the upper die are formed in the mating surface of the lower die. The matched use of the positioning groove and the positioning lug can quickly and conveniently position the upper die and the lower die when the die is closed.

Preferably, the upper die and the lower die are respectively provided with an upper die threaded through hole and a lower die threaded hole, and the upper die threaded through hole and the lower die threaded hole are connected through a fastening screw. The fastening screw is convenient to connect, easy to manufacture and low in production cost.

Preferably, the bottom of the lower die is provided with a plurality of high-temperature-resistant heat-insulating supports. The high-temperature-resistant heat-insulation support piece can reduce heat loss caused by large-area contact of the bottom surface of the lower die and the placing surface, and influence of the high-temperature die on the placing surface.

Preferably, the two ends of the upper die are provided with annular handles, and the annular handles can facilitate moving the die when the die is operated.

The utility model discloses following beneficial effect has at least:

1. the utility model discloses a plurality of electric heating element have made the screw mould possess the self-heating function.

2. The utility model discloses a lead liquid outlet bottom of gluing the recess and be set up to being higher than and lead gluey recess bottom, can reduce to lead gluey recess because of leading that the glue solution flows in a large number and leads to leads gluey recess cavity, reduce to lead gluey recess cavity to the influence of temperature.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic view of the overall structure of embodiment 1 of the present invention;

fig. 2 is a front view of the embodiment of the present invention 1;

FIG. 3 is a cross-sectional view A-A of FIG. 2;

fig. 4 is a right side view of the embodiment of the present invention 1;

FIG. 5 is a schematic view of a top mold portion according to embodiment 1 of the present invention;

FIG. 6 is a partial top view of the upper mold according to embodiment 1 of the present invention;

FIG. 7 is a schematic view of a lower mold part according to embodiment 1 of the present invention;

FIG. 8 is a top view of a lower mold part of embodiment 1 of the present invention;

FIG. 9 is a right side view of a lower mold part of embodiment 1 of the present invention;

fig. 10 is a bottom view of a lower mold part of embodiment 1 of the present invention;

fig. 11 is a schematic view of a liquid outlet sealing plug according to embodiment 1 of the present invention;

fig. 12 is a structural view of a lower mold sealing plug according to a first embodiment of the present invention;

icon: 1-upper mould; 2-lower mould; 3-fastening screws; 4-an electrical heating element; 5-a ring-shaped handle; 6-high temperature resistant heat insulation support; 7-a liquid outlet; 8-liquid outlet sealing plug; 9-lower die sealing plug; 10-airfoil cavity; 11-reserving a through hole; 12-guiding the glue groove; 13-a V-shaped channel; 14-positioning grooves; 15-upper die thread through hole; 16-a die face; 17-positioning the bump; 18-lower die threaded holes; 19-lower mould sealing plug matching structure.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Example 1

Please refer to fig. 1-12, this embodiment provides a small-size cavity rapid heating screw mould, including last mould 1, the lower mould 2 that matches, the face of going up mould 1 and the lower mould 2 laminating each other is the joint face 16, joint face 16 is provided with leads gluey recess 12, it has two liquid outlets 7 to lead gluey recess 12, go up mould 1 with form airfoil cavity 10 after the lower mould 2 compound die, respectively be provided with a plurality of electric heating element 4 in going up mould 1 and the lower mould 2, electric heating element 4 evenly arranges along the pitch arc of airfoil cavity 7 terminal surface, the liquid outlet 7 bottom of leading gluey recess 12 is set up to be higher than and leads gluey recess 12 bottom. The heating value of each uniformly arranged electric heating element 4 is controlled respectively, so that the propeller mould has a self-heating function, and the temperature of the mould can be more uniform by controlling the heating value of each electric heating element 4 respectively. The bottom of the liquid outlet 7 of the glue guiding groove 12 is set to be higher than the bottom of the glue guiding groove 12, so that the difficulty of the outflow of the glue solution in the glue guiding groove 12 can be increased, and a part of unnecessary outflow glue solution is reduced to flow out of the glue guiding groove 12, thereby reducing the cavity volume of the glue guiding groove 12 during the working of the mold, ensuring the temperature of the mold during the working to be more uniform and improving the molding quality of the blade.

Further, the glue guiding groove is arranged to surround the airfoil cavity 10. When the mould is used, redundant glue solution overflowing from the inner surface of the wing-shaped cavity 10 to the joint surface can flow into the glue guide groove 12 at any time, so that the problems that the upper mould 1 and the lower mould 2 cannot be attached smoothly, the mould closing gap is too large and the mould closing is not uniform due to the excessive glue of the joint surface 16 of the mould are solved, and the forming quality of the blade is improved.

Further, the liquid outlet of the glue guiding groove 12 is arranged on the upper die 2. Therefore, the bottom of the liquid outlet 7 of the glue guiding groove 12 is higher than the bottom of the glue guiding groove 12, the problem that the glue guiding groove 12 has large cavity volume due to the fact that a large amount of glue flows out is solved, and the temperature of the glue guiding groove 12 is more uniform.

Further, the glue guiding groove 12 is communicated with the outside through a V-shaped channel 13, and the cross-sectional area of the channel is gradually reduced from inside to outside. Therefore, the difficulty of the glue solution flowing out of the glue guide groove 12 can be increased, the cavity volume of the glue guide groove 12 caused by the large outflow of the glue solution is reduced, and the temperature of the glue guide groove 12 is more uniform.

Furthermore, the V-shaped channel 13 is positioned on the upper die 2 and is provided with a protruding liquid outlet 7 communicated with the outside, and the liquid outlet 7 is provided with a liquid outlet sealing plug 8 matched with the liquid outlet 7. The liquid outlet 7 that stretches out can make the glue solution of outflow on the mould body, makes the mould conveniently clear up after the use, and liquid outlet sealing plug 8 can seal leading gluey recess 12 when need not flowing out the glue solution after the compound die is accomplished, solves the local heat loss problem that produces because of the air convection in external air and the leading gluey recess 12 during the use, makes the temperature of mould more even.

Further, the lower mold 2 part of the V-shaped channel 13 is provided with a lower mold sealing plug 9 and a lower mold sealing plug fitting structure 19 adapted to the lower mold sealing plug 9. The lower die sealing plug matching structure 19 is used for connecting the lower die 2 and the lower die sealing plug 9, the lower die sealing plug 9 can prevent glue solution from flowing out when the die works, and the lower die sealing plug 9 can be taken down to facilitate the die washing when the die is used up and cleaned.

Furthermore, two positioning grooves 14 are arranged on the die clamping surface 16 of the upper die, and two positioning lugs 17 corresponding to the positioning grooves 14 of the upper die 1 are arranged on the die clamping surface 16 of the lower die. The matching use of the positioning groove 14 and the positioning lug 17 can quickly and conveniently position the upper die 1 and the lower die 2 when the die is closed.

Further, the upper die 1 and the lower die 2 are respectively provided with an upper die thread through hole 15 and a lower die thread hole 18, and the upper die thread through hole 15 and the lower die thread hole 18 are connected through a fastening screw 3. The fastening screw is convenient to connect, easy to manufacture and low in production cost.

Further, the bottom of the lower mold 2 is provided with a plurality of wooden high temperature resistant heat insulation supports 6. The high-temperature-resistant heat-insulation support piece 6 can reduce heat loss caused by large-area contact of the bottom surface of the lower die 2 and the placing surface, and influence of a high-temperature die on the placing surface is reduced.

Further, go up the both ends of mould 1 and be provided with annular handle 5, annular handle 5 can conveniently remove the mould when the operation mould.

Further, in order to better control the temperature of the mold, the upper mold 1 and the lower mold 2 in this embodiment have a reserved through hole, a temperature sensor can be added through the reserved through hole 11, the temperature sensor is set to adhere to the surface of the airfoil cavity 10, the heating value of the electric heating element can be controlled according to the real-time temperature data obtained by the temperature sensor, and finally the dynamic control of the temperature of the mold is realized.

It should be noted that the high temperature resistant heat insulation support may also be a high temperature resistant rubber pad support, a high temperature resistant plastic support, an asbestos support, or the like. The bottom of the glue outlet of the glue guide groove is higher than the bottom of the glue guide groove, and the glue guide groove can be formed in a mode that a V-shaped channel and a lengthened channel are obliquely and upwards arranged, or a mode that the lengthened channel is obliquely and upwards arranged; the electric heating element can be a resistance wire, an electric heating rod, a ceramic heating sheet and the like; the positioning groove and the positioning lug can also be in other shapes such as rectangle, triangle and the like; the upper die and the lower die can be connected by bolts in addition to the fastening screws in the embodiment.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

Claims (10)

1. The utility model provides a small-size cavity rapid heating screw mould, is including last mould (1), lower mould (2) that match, go up mould (1) with the face that lower mould (2) laminated each other is matched die surface (16), matched die surface (16) are provided with lead gluey recess (12), lead gluey recess (12) have at least one liquid outlet (7), its characterized in that: go up mould (1) and respectively be provided with a plurality of electric heating element (4) in lower mould (2), liquid outlet (7) bottom of glue guiding groove (12) is set up to be higher than glue guiding groove (12) bottom.

2. A compact hollow rapid heating propeller mold as defined in claim 1, wherein: the upper die (1) and the lower die (2) are matched to form an airfoil cavity (10), and the glue guide groove (12) is arranged to surround the airfoil cavity (10).

3. A compact hollow rapid heating propeller mold as defined in claim 1, wherein: the liquid outlet (7) of the glue guiding groove (12) is arranged on the upper die (1).

4. A compact hollow rapid heating propeller mold as defined in claim 1, wherein: the glue guide groove (12) is communicated with the outside through a V-shaped channel (13), and the cross section area of the V-shaped channel (13) is gradually reduced from inside to outside.

5. A miniature hollow rapid heating propeller mold as defined in claim 4, wherein: the V-shaped channel (13) positioned on the upper die (1) part is provided with a stretched liquid outlet (7), and the liquid outlet (7) is provided with a liquid outlet sealing plug (8) matched with the liquid outlet (7).

6. A miniature hollow rapid heating propeller mold as defined in claim 4, wherein: the V-shaped channel (13) and the lower die (2) are partially provided with a lower die sealing plug (9) and a lower die sealing plug matching structure (19) matched with the lower die sealing plug (9).

7. A compact hollow rapid heating propeller mold as defined in claim 1, wherein: the die assembly structure is characterized in that a plurality of positioning grooves (14) are formed in the die assembly surface (16) of the upper die (1), and a plurality of positioning convex blocks (17) corresponding to the positioning grooves (14) of the upper die (1) are arranged on the die assembly surface (16) of the lower die (2).

8. A compact hollow rapid heating propeller mold as defined in claim 1, wherein: the upper die (1) is connected with the lower die (2) through a fastening screw (3).

9. A compact hollow rapid heating propeller mold as defined in claim 1, wherein: the bottom of the lower die (2) is provided with a plurality of high-temperature-resistant heat-insulation supporting pieces (6).

10. A compact hollow rapid heating propeller mold as defined in claim 1, wherein: and two ends of the upper die (1) are provided with annular handles (5).

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