Forming die for step structure of airstairs

Abstract

The utility model provides a boarding ladder step structure forming die which comprises a lower die body, the lower die body is matched with an upper die body, die assembly positioning mechanisms used for positioning are arranged at the four corners of the lower die body and the four corners of the upper die body, and locking mechanisms used for locking after die assembly are arranged on the two sides of the lower die body and the two sides of the upper die body. A plurality of step forming die cavities are machined in the matching surface of the upper die and the lower die, end flanges are symmetrically arranged on the top of the upper die and located on the two sides of the step forming die cavities, the end flanges are in contact fit with the outer end face of a pedal end sealing plate, a plug is arranged on the inner side wall of the pedal end sealing plate, and a pre-embedded bush is arranged on the inner side of the plug. The forming die can be used for carrying out integral hot press forming on the airstair step structure made of the composite material, and can synchronously realize simultaneous forming of a plurality of steps, so that the forming efficiency of the steps is improved.

Description

Technical Field

[0001] This utility model belongs to the field of composite material boarding ladder component molding technology, specifically relating to boarding ladder step structure molding mold. Background Technology

[0002] Existing boarding stairs are mainly made of aluminum alloy plates, which are relatively heavy and time-consuming and labor-intensive to handle and transport. Therefore, in order to ensure the structural strength of the boarding stairs, it is necessary to improve the materials used. Currently, the main structure of the boarding stairs is designed as a carbon-glass fiber hybrid composite foam sandwich structure. The core material is PMI foam, and the surface of the core material is covered with carbon fiber prepreg, and the surface of the carbon fiber is covered with glass fiber fabric prepreg. The overall goal is to achieve lightweighting, while the addition of foam core and glass fiber can improve overall rigidity, impact resistance, and wear resistance.

[0003] If a carbon-glass fiber hybrid composite foam sandwich structure is used, its molding process requires hot pressing, which necessitates the design of corresponding molding dies to form the boarding stairs steps. Utility Model Content

[0004] The purpose of this invention is to provide a molding die for boarding stairs step structures. This molding die can be used to perform overall hot pressing molding of boarding stairs step structures made of composite materials, and can simultaneously mold multiple steps at the same time, thereby improving the molding efficiency of the steps.

[0005] To achieve the above-mentioned technical features, the purpose of this utility model is as follows: a boarding ladder step structure forming mold includes a lower mold that cooperates with an upper mold. The lower mold and the upper mold are provided with mold closing and positioning mechanisms at their four corners, and with locking mechanisms on both sides of the lower mold and the upper mold for locking after mold closing. The mating surfaces of the upper mold and the lower mold are machined with multiple step forming cavities. The top of the upper mold and the sides of the step forming cavities are symmetrically provided with end guards. These end guards contact and cooperate with the outer end face of the pedal end plate. The inner wall of the pedal end plate is provided with a plug, and the inner side of the plug is provided with a pre-embedded bushing.

[0006] The mold closing and positioning mechanism includes positioning holes machined at the four corners of the lower mold and the upper mold respectively; a positioning cone sleeve is fixed at the location of the positioning hole of the upper mold, the positioning cone sleeve cooperates with the positioning cone, and the positioning cone is fixed inside the positioning hole of the lower mold.

[0007] The locking mechanism includes a locking bolt hole machined on the upper mold, a locking bolt is provided at the location of the locking bolt hole, and the locking bolt and the threaded hole machined on the lower mold form a threaded engagement.

[0008] The part of the step forming mold cavity is used to position and place the step, and the top surface of the step is provided with anti-slip texture.

[0009] The step forming cavity comes in various sizes.

[0010] A notch is provided between adjacent end guards.

[0011] The tread plate has a through hole inside, which matches the position of the pre-embedded bushing.

[0012] The present invention has the following beneficial effects:

[0013] 1. This molding die can be used to perform overall hot pressing molding of boarding stairs treads made of composite materials, and can simultaneously mold multiple treads at the same time, thereby improving the molding efficiency of the treads.

[0014] 2. The mold closing and positioning mechanism facilitates positioning during the mold closing process, thereby improving the mold closing positioning accuracy of the lower and upper molds and increasing mold closing efficiency.

[0015] 3. The locking mechanism described above facilitates locking and fixing after mold closing.

[0016] 4. The step forming cavity described above can be used for hot pressing of steps made of composite materials.

[0017] 5. Different dimensions ensure the ability to manufacture boarding ladder tread structures of different models and sizes. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0019] Figure 1 This is a first-person perspective 3D view of the present invention.

[0020] Figure 2 This is a two-dimensional view of the present invention from a second perspective.

[0021] Figure 3 This is a first-person 3D view of the upper mold of this utility model.

[0022] Figure 4 This is a two-dimensional view of the upper mold of this utility model from a second perspective.

[0023] Figure 5 This is a first-person 3D view of the product after the upper mold of this utility model has been placed on it.

[0024] Figure 6 This is a second-view 3D view of the product after the upper mold of this utility model has been placed.

[0025] Figure 7This is a structural diagram of the present invention after the upper and lower molds are hidden.

[0026] In the diagram: 1. Upper mold, 2. Positioning hole, 3. Locking bolt hole, 4. Locking bolt, 5. Positioning cone, 6. Step forming mold cavity, 7. End guard, 8. Pedal end plate, 9. Plug, 10. Embedded bushing, 11. Notch, 12. Step, 13. Anti-slip texture, 14. Through hole, 15. Lower mold, 16. Positioning cone sleeve. Detailed Implementation

[0027] The embodiments of this utility model will be further described below with reference to the accompanying drawings.

[0028] See Figure 1-7 A mold for forming boarding stairs steps includes a lower mold 15, which mates with an upper mold 1. The lower mold 15 and the upper mold 1 have positioning mechanisms at their four corners, and locking mechanisms on both sides for locking after mold closing. Multiple step forming cavities 6 are machined on the mating surfaces of the upper mold 1 and the lower mold 15. End flanges 7 are symmetrically arranged on the top of the upper mold 1 and on both sides of the step forming cavities 6. The end flanges 7 contact and mate with the outer end face of the pedal end plate 8. A plug 9 is provided on the inner wall of the pedal end plate 8, and a pre-embedded bushing 10 is provided inside the plug 9. This mold can be used for integral hot-press forming of composite material boarding stairs steps, and can simultaneously form multiple steps, thereby improving the forming efficiency of the steps.

[0029] Furthermore, the mold closing and positioning mechanism includes positioning holes 2 machined at the four corners of the lower mold 15 and the upper mold 1; a positioning cone sleeve 16 is fixed at the location of the positioning hole 2 on the upper mold 1, the positioning cone sleeve 16 cooperates with the positioning cone 5, and the positioning cone 5 is fixed inside the positioning hole 2 of the lower mold 15. The mold closing and positioning mechanism facilitates positioning during the mold closing process, thereby achieving high positioning accuracy for the lower mold 15 and the upper mold 1, and improving mold closing efficiency.

[0030] Furthermore, the locking mechanism includes a locking bolt hole 3 machined on the upper mold 1, and a locking bolt 4 is provided at the location of the locking bolt hole 3. The locking bolt 4 and the threaded hole machined on the lower mold 15 form a threaded engagement. The above-mentioned locking mechanism facilitates locking and fixing after mold closing.

[0031] Furthermore, the step forming cavity 6 is used to position and place the step 12, and the top surface of the step 12 is provided with anti-slip texture 13. The step forming cavity 6 described above can be used for hot pressing of the step 12 made from composite materials. The anti-slip texture 13 provides a good anti-slip effect.

[0032] Furthermore, the step forming cavity 6 is available in various sizes. These different sizes ensure that boarding ladder step structures of different models and sizes can be manufactured.

[0033] Furthermore, a notch 11 is provided between adjacent end guards 7. The notch 11 facilitates subsequent positioning.

[0034] Furthermore, the interior of the pedal end plate 8 is provided with a through hole 14, which matches the position of the pre-embedded bushing 10.

[0035] The specific working process and principle of this utility model are as follows:

[0036] The boarding ladder step molding mold of this utility model includes a lower molding mold, an upper molding mold, and a cavity between the two molding molds as a molding cavity. The molding cavity can be set to different sizes, and steps of different sizes are cured and molded simultaneously. The precast body that has been laid is molded and cured in the molding cavity of the mold. Positioning holes are provided on both the upper and lower molding molds for installing positioning pins to maintain the molding gap between the upper and lower mold cavities. Each mold cavity has a locating pin on its side for positioning and installing the embedded bushing. The molding method first involves installing the anti-slip bosses, then laying fiberglass prepreg in the pre-reserved grooves within the mold cavity. Next, the preform is fabricated: carbon fiber prepreg is laid around the core, and the embedded bushing is reinforced. Carbon fiber prepreg is then laid on the surface of the embedded bushing, with a flanged edge. The reinforced bushing is placed into the boarding step, securing the joints, and then carbon fiber prepreg is laid on top. The outermost layer is fiberglass prepreg. Finally, the preform is placed into the mold cavity and joined with the anti-slip bosses. The entire structure is cured using molding technology. This mold can produce boarding step structures of different models and sizes. The main boarding step structure and threaded bushing are integrally molded, with anti-slip bosses on the surface. The product dimensions are precise, reducing secondary processing, resulting in more stable performance and suitability for mass production.

Claims

1. A mold for forming the structure of boarding stairs steps, characterized in that, The system includes a lower mold (15) that cooperates with an upper mold (1). The lower mold (15) and the upper mold (1) are provided with mold closing and positioning mechanisms at their four corners. The lower mold (15) and the upper mold (1) are provided with locking mechanisms on both sides for locking after mold closing. The mating surfaces of the upper mold (1) and the lower mold (15) are machined with multiple step forming cavities (6). The top of the upper mold (1) and the two sides of the step forming cavity (6) are symmetrically provided with end guards (7). The end guards (7) are in contact with the outer end face of the pedal end plate (8). The inner side wall of the pedal end plate (8) is provided with a plug (9). The inner side of the plug (9) is provided with a pre-embedded bushing (10).

2. The mold for forming the boarding ladder step structure according to claim 1, characterized in that: The mold closing and positioning mechanism includes positioning holes (2) corresponding to the four corners of the lower mold (15) and the upper mold (1); a positioning cone sleeve (16) is fixed at the location of the positioning hole (2) of the upper mold (1), the positioning cone sleeve (16) cooperates with the positioning cone (5), and the positioning cone (5) is fixed inside the positioning hole (2) of the lower mold (15).

3. The mold for forming the boarding ladder step structure according to claim 1, characterized in that: The locking mechanism includes a locking bolt hole (3) machined on the upper mold (1), and a locking bolt (4) is provided at the location of the locking bolt hole (3). The locking bolt (4) and the threaded hole machined on the lower mold (15) form a threaded engagement.

4. The mold for forming the boarding ladder step structure according to claim 1, characterized in that: The step forming cavity (6) is used to position and place the step (12), and the top surface of the step (12) is provided with anti-slip texture (13).

5. The mold for forming the boarding ladder step structure according to claim 1, characterized in that: The step forming cavity (6) has various sizes.

6. The mold for forming the boarding ladder step structure according to claim 1, characterized in that: A notch (11) is provided between adjacent end guards (7).

7. The mold for forming the boarding ladder step structure according to claim 1, characterized in that: The pedal end plate (8) has a through hole (14) inside, and the position of the through hole (14) matches that of the pre-embedded bushing (10).

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