Forming die for closed-up annular air inlet duct

Abstract

The utility model discloses a closing-in annular type air inlet channel forming die which comprises a bottom plate, a die body and a connecting plate, the die body is divided into a lower layer structure, a middle layer structure and an upper layer structure, and the lower layer structure, the middle layer structure and the upper layer structure are fixedly connected; the lower layer structure is formed by splicing six lower die bodies, and the lower die bodies are fixed on the bottom plate; the middle-layer structure comprises a middle body and a plurality of middle mold bodies, and the middle mold bodies are wound into a circle and fixed to the periphery of the middle body; the upper layer structure is composed of three upper die bodies, inserts are arranged on the two sides of the upper layer structure, and the inserts and the upper die bodies are fixedly connected with the connecting plate. According to the utility model, the mold main body is arranged into a structure of splicing a plurality of mold bodies, so that the normal use of the mold during material paving can be ensured, each mold body can be detached and independently taken out for demolding in the demolding stage, and the mold bodies are small in size and can be easily taken out from the small-caliber ends of the air passages, thereby completing rapid demolding and ensuring the demolding quality.

Description

Technical Field

[0001] The utility model relates to the technical field of airway forming, in particular to a closed-end annular air inlet forming die. Background Art

[0002] Composite materials are widely used in various industries, including aerospace, construction, automotive, energy, infrastructure, marine, military, sports and entertainment industries.

[0003] Many components are made by laying and curing composite materials. For example, when molding airway products, the composite material is first laid on the male mold, and then the molded airway is demolded. However, some airway structures are irregular, such as closed-end annular air intakes. The openings at both ends of these airway are of different sizes and do not align in the same straight line. Therefore, demolding after molding is very difficult and can easily damage the part, significantly reducing the molding quality. Utility Model Content

[0004] In order to solve the above problems, the utility model provides a closed-end annular air inlet forming mold, which can be quickly demoulded, reduce the risk of part damage caused by demoulding, improve production efficiency and reduce production costs.

[0005] To this end, the technical solution of the utility model is: a closed-end annular air inlet forming mold, including a base plate, a mold body and a connecting plate, the mold body is divided into a lower structure, a middle structure and an upper structure, and the lower structure, the middle structure and the upper structure are fixedly connected; the lower structure is composed of six lower mold bodies, and the lower mold body is fixed on the base plate; the middle structure includes an intermediate body and multiple middle mold bodies, and the middle mold bodies are arranged in a circle and fixed on the periphery of the intermediate body; the upper structure is composed of three upper mold bodies, and inserts are provided on both sides of the upper structure, and the inserts, the upper mold body and the connecting plate are fixedly connected.

[0006] On the basis of the above scheme and as a preferred scheme of the above scheme: the lower mold body is divided into two parallel groups, each group includes a first lower mold body, a second lower mold body and a third lower mold body, the second lower mold body has a trapezoidal structure, located between the first lower mold body and the third lower mold body, and the third lower mold body has an inverted trapezoidal structure.

[0007] On the basis of the above scheme and as a preferred scheme of the above scheme: the bottoms of the first lower mold body, the second lower mold body and the third lower mold body are provided with flanges, and the flanges are provided with bolt holes, positioning holes and top screw holes.

[0008] On the basis of the above scheme and as a preferred scheme of the above scheme: the left side of the intermediate body is provided with a first middle mold body, a second middle mold body and a third middle mold body arranged in parallel, the front and rear sides of the intermediate body are respectively provided with a fourth middle mold body and a fifth middle mold body, and the right side of the intermediate body is provided with a sixth middle mold body, and the sixth middle mold body is located between the fourth middle mold body and the fifth middle mold body.

[0009] On the basis of the above scheme and as a preferred scheme of the above scheme: the upper mold body is divided into a first upper mold body, a second upper mold body and a third upper mold body arranged in parallel, and the outer sides of the first upper mold body and the third upper mold body are provided with flanges, and the inserts are fixed on the outer sides of the flanges.

[0010] On the basis of the above solution and as a preferred solution of the above solution: the relatively positioned lower mold body and middle mold body, and the middle mold body and upper mold body are positioned by positioning pins and fixedly connected by bolts.

[0011] When using the present invention, the individual mold bodies are assembled into a mold body in sequence, the composite material is laid on the mold body, and then solidified and formed. The steps for demoulding the airway after forming are as follows:

[0012] 1. First, demould and remove the connecting plate and the inserts on both sides;

[0013] 2. Demolding the upper structure: first remove the second upper mold body in the middle, then remove the first upper mold body and the third upper mold body in sequence;

[0014] 3. Demolding the middle structure: first remove the middle body, then remove the second middle body, the sixth middle body, the fourth middle body, the fifth middle body, the first middle body and the third middle body in sequence, and take them out from the vacant position of the middle body in order;

[0015] 4. Demolding of the lower structure: first remove the bolts of the first lower mold body, the third lower mold body and the bottom plate, then lift the first lower mold body, the third lower mold body and the airway finished product on both sides at the same time through the top screw holes on the bottom flanges of the first lower mold body and the third lower mold body to complete the demolding of the airway finished product.

[0016] Compared with the prior art, the beneficial effects of the present invention are: the mold body is set as a multiple mold assembly structure, which can not only ensure the normal use of the mold when the material is laid, but also in the demolding stage, each mold body can be disassembled and taken out separately for demolding. The mold body is small in size and can be easily taken out from the small-diameter end of the airway, thereby completing rapid demolding, and also reducing the risk of damage and scrapping of parts caused by demolding of closed-end annular parts, significantly improving production efficiency and reducing production costs, and also providing a certain reference and reference for the manufacture of such tooling. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural diagram of the utility model;

[0018] Figure 2 This is a schematic diagram of the layered structure of the utility model;

[0019] Figure 3 This is an exploded view of the parts of the utility model;

[0020] Figure 4 This is a diagram of the use state of the utility model;

[0021] Figure 5 This is a schematic diagram of the demoulding of the present utility model;

[0022] Figure 6 This is a structural diagram of a closed annular air inlet.

[0023] Marked in the figure are: base plate 1, lower structure 2, first lower mold body 21, second lower mold body 22, third lower mold body 23, middle structure 3, intermediate body 31, first middle mold body 32, second middle mold body 33, third middle mold body 34, fourth middle mold body 35, fifth middle mold body 36, sixth middle mold body 37, upper structure 4, first upper mold body 41, second upper mold body 42, third upper mold body 43, flange 44, connecting plate 5, insert 6, air duct finished product 7. DETAILED DESCRIPTION

[0024] In the description of the present invention, it should be noted that, for directional words, such as the terms "center", "horizontal (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and so on, indicating directions and positional relationships are based on the directions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and cannot be understood as limiting the specific protection scope of the present invention.

[0025] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features. Therefore, the terms "first" and "second" may explicitly or implicitly refer to one or more of these features. In the description of this utility model, "several" and "a number" mean two or more, unless otherwise specifically defined.

[0026] See the accompanying drawings. The closed-end annular air inlet forming mold described in this embodiment includes a base plate 1, a mold body, and a connecting plate 5. The mold body is divided into a lower structure 2, a middle structure 3, and an upper structure 4. The lower structure 2, the middle structure 3, and the upper structure 4 are positioned by locating pins and fixedly connected by bolts.

[0027] The lower structure 2 is composed of six lower mold bodies, and the lower mold bodies are fixed to the bottom plate; the lower mold bodies are divided into two parallel groups, each group including a first lower mold body 21, a second lower mold body 22 and a third lower mold body 23. The second lower mold body 22 has a trapezoidal structure and is located between the first lower mold body 21 and the third lower mold body 23, and the third lower mold body 23 has an inverted trapezoidal structure. The bottom of each lower mold body has a flange, which is provided with bolt holes, locating pin holes and top screw holes. The mold body and the bottom plate can be connected together by tightening bolts and locating pins to form the lower structure of the mold; the contact surface between the first lower mold body 21, the second lower mold body 22 and the third lower mold body 23 is designed to be a wedge-shaped contact, which facilitates the demolding of the first lower mold body 21 and the third lower mold body 23.

[0028] The middle layer structure 3 includes an intermediate body 31 and multiple intermediate mold bodies. A first intermediate mold body 32, a second intermediate mold body 33, and a third intermediate mold body 34 are arranged in parallel on the left side of the intermediate body 31. A fourth intermediate mold body 35 and a fifth intermediate mold body 36 are respectively arranged on the front and rear sides of the intermediate body 31. A sixth intermediate mold body 37 is arranged on the right side of the intermediate body 31, and the sixth intermediate mold body 37 is located between the fourth intermediate mold body 35 and the fifth intermediate mold body 36. The first intermediate mold body 32, the second intermediate mold body 33, the third intermediate mold body 34, the fourth intermediate mold body 35, the fifth intermediate mold body 36, and the sixth intermediate mold body 37 are distributed around the intermediate body 31 and connected together through connecting holes and positioning pins between the intermediate body 31 to form the mold middle layer structure.

[0029] The upper structure 4 is composed of three upper mold bodies, with inserts 6 provided on both sides of the upper structure 4. The inserts 6 and the upper mold bodies are fixedly connected to the connecting plate 5 by fastening bolts and positioning pins. The upper mold body is divided into a first upper mold body 41, a second upper mold body 42, and a third upper mold body 43 arranged in parallel. The outer sides of the first upper mold body 41 and the third upper mold body 43 are provided with flanges 44, and the inserts 6 are fixed on the outer sides of the flanges 44.

[0030] Adjacent lower mold bodies, adjacent middle mold bodies, and adjacent lower mold bodies are all positioned by positioning pins and fixedly connected by bolts.

[0031] When in use, the individual molds are assembled into the mold body in sequence, the composite material is laid on the mold body, and then solidified and formed. The steps for demoulding the airway after forming are as follows:

[0032] 1. First, remove the connecting plate 5 and the inserts 6 on both sides from the mold as a whole;

[0033] 2. Demolding of upper structure 4:

[0034] 2.1. Remove all the bolts connecting the upper structure 4 and the middle structure 3;

[0035] 2.2. Vertically remove the second upper mold body 42 located in the middle of the upper structure 4;

[0036] 2.3. Move the first upper mold body 41 and the third upper mold body 43 toward the second upper mold body 42 , and then remove the first upper mold body 41 and the third upper mold body 43 to complete the demoulding of the mold upper structure 4 ;

[0037] 3. Demolding of middle structure 3:

[0038] 3.1. Remove all the bolts connecting the middle structure 3 and the lower structure 2, and take out the intermediate body 31 vertically;

[0039] 3.2. Move the second middle mold body 33 located in the middle of the left side and the sixth middle mold body 37 on the right side toward the direction where the middle body 31 is vacant, and take out the second middle mold body 33 and the sixth middle mold body 37.

[0040] 3.3. Move the fourth middle mold body 35 and the fifth middle mold body 36 on the front and rear sides toward the intermediate body 31 and remove the fourth middle mold body 35 and the fifth middle mold body 36;

[0041] 3.4. Move the first middle mold body 32 and the third middle mold body 34 toward the intermediate body 31 and remove them to complete the demoulding of the middle layer structure 3 of the mold;

[0042] 4. Demolding of lower structure 2:

[0043] 4.1. Remove the connecting bolts and positioning pins between the first lower mold body 21 and the third lower mold body 23 and the bottom plate 1 on both sides, and retain the connecting bolts between the second lower mold body 22 and the bottom plate 1;

[0044] 4.2. Lift the first lower mold body 21 and the third lower mold body 23 on both sides and the airway finished product 7 at the same time through the top screw holes on the bottom flanges of the first lower mold body 21 and the third lower mold body 23 on both sides to complete the demolding of the airway finished product 7.

[0045] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiment. All technical solutions based on the concept of the present invention are within the scope of protection of the present invention. It should be noted that for those skilled in the art, certain improvements and modifications that do not depart from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A closed-end annular air inlet forming die, characterized by: It includes a base plate, a mold body and a connecting plate. The mold body is divided into a lower structure, a middle structure and an upper structure. The lower structure, the middle structure and the upper structure are fixedly connected. The lower structure is composed of six lower mold bodies, and the lower mold body is fixed on the base plate. The middle structure includes an intermediate body and multiple middle mold bodies. The middle mold bodies are arranged in a circle and fixed on the periphery of the intermediate body. The upper structure is composed of three upper mold bodies. Inserts are provided on both sides of the upper structure. The inserts, the upper mold body and the connecting plate are fixedly connected.

2. A closed-end annular air inlet forming die according to claim 1, characterized in that: The lower mold body is divided into two parallel groups, each group includes a first lower mold body, a second lower mold body and a third lower mold body, the second lower mold body is a trapezoidal structure, located between the first lower mold body and the third lower mold body, and the third lower mold body is an inverted trapezoidal structure.

3. The mold for forming a closed-end annular air inlet according to claim 2, characterized in that: The bottoms of the first lower mold body, the second lower mold body and the third lower mold body are provided with flanges, and the flanges are provided with bolt holes, positioning holes and top screw holes.

4. The mold for forming a closed-end annular air inlet according to claim 1, characterized in that: The left side of the intermediate body is provided with a first middle mold body, a second middle mold body and a third middle mold body arranged in parallel, the front and rear sides of the intermediate body are respectively provided with a fourth middle mold body and a fifth middle mold body, and the right side of the intermediate body is provided with a sixth middle mold body, and the sixth middle mold body is located between the fourth middle mold body and the fifth middle mold body.

5. The mold for forming a closed-end annular air inlet according to claim 1, characterized in that: The upper mold body is divided into a first upper mold body, a second upper mold body and a third upper mold body which are arranged in parallel. The outer sides of the first upper mold body and the third upper mold body are provided with flanges, and the inserts are fixed on the outer sides of the flanges.

6. The closed-end annular air inlet forming die according to claim 1, characterized in that: The lower mold body and the middle mold body, and the middle mold body and the upper mold body, which are relatively located, are positioned by positioning pins and fixedly connected by bolts.

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