Safety air bag frame mold with mesh cloth

Abstract

The utility model provides a safety air bag frame mold with mesh cloth, relates to the technical field of molds, and aims to solve the technical problem that in the prior art, the positions of bolts are easy to shift along the vertical direction in the injection molding process, so that the positions of the bolts are not uniform after the safety air bag frame is subjected to injection molding, and the normal connection between the safety air bag frame and a vehicle is influenced. A safety air bag frame mold with screen cloth comprises an upper mold plate and a lower mold plate, a mold cavity used for forming a safety air bag frame is formed in the top end of the lower mold plate, a plurality of containing holes used for containing bolts are formed in the bottom face of the mold cavity, the upper mold plate is connected with a plurality of limiting assemblies, the limiting assemblies correspond to the containing holes in a one-to-one mode, and each limiting assembly comprises a limiting rod. The upper end of the limiting rod is connected into the upper mold plate, the bottom end of the limiting rod is exposed out of the lower portion of the upper mold plate, during mold closing, the bottom end of the limiting rod abuts against the top end of the bolt placed in the placing hole, position deviation of the bolt in the injection molding process is prevented, the positions of the bolts on the air bag restraint system frame are uniform after injection molding, and the air bag restraint system frame can be normally connected with a vehicle.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to a safety airbag frame mold with mesh cloth. Background Art

[0002] Airbags can pop out to protect the occupants when a vehicle collides, and they play an extremely important role in ensuring the safety of the occupants during driving. Airbags need to be installed in the vehicle through airbag frames. The airbag frame is generally connected to the vehicle through buckles. However, the airbag has a large force when it pops out, and the buckle-type connection between the airbag frame and the vehicle is not stable, which makes it easy for the airbag frame to separate from the vehicle when the airbag pops out. In serious cases, the airbag frame will pop out together, which poses a safety hazard. Therefore, at present, bolts are often used to connect the airbag frame to the vehicle to improve the connection strength and stability. The specific method is to place the bolts as inserts in the corresponding positions in the mold, and the mesh is also placed in the mold as an insert, and then the airbag frame is injection molded to form an integrated structure of the bolts, mesh and airbag frame. The problem with this production method is that the position of the bolts is easily offset vertically during the injection molding process, resulting in the position of the bolts being inconsistent after the injection molding of the airbag frame, which affects the normal connection between the airbag frame and the vehicle. Utility Model Content

[0003] In view of the shortcomings of the prior art, the purpose of the utility model is to provide an airbag frame mold with a mesh cloth to solve the technical problem in the prior art that the position of the bolts is easily offset vertically during the injection molding process, resulting in inconsistent positions of the bolts after the airbag frame is injection molded, thereby affecting the normal connection between the airbag frame and the vehicle.

[0004] In order to solve the above technical problems, the utility model provides an airbag frame mold with a mesh, including an upper template and a lower template. The top of the lower template is provided with a mold cavity for molding the airbag frame, and the bottom of the mold cavity is provided with a plurality of placement holes for placing bolts. The upper template is connected to a plurality of limit assemblies, each limit assembly corresponds to a placement hole one by one, and the limit assembly includes a limit rod, the upper end of the limit rod is connected to the upper template and the bottom end of the limit rod is exposed below the upper template. When the mold is closed, the bottom end of the limit rod is against the top of the bolt placed in the placement hole.

[0005] After adopting the above structure, the utility model has the following advantages: before injection molding, each bolt is placed in each placement hole respectively, and a limit assembly is arranged on the upper mold plate. When the mold is closed, the limit rod is against the top of the bolt to limit the bolt, thereby preventing the bolt from position shifting during the injection molding process, so that the position of the bolts on the airbag frame is unified after injection molding, so that the airbag frame can be normally connected to the vehicle.

[0006] As an improvement, the limiting rod includes a rod portion and a limiting portion, the rod portion is connected inside the upper template, the limiting portion is connected to the bottom end of the rod portion and exposed below the upper template, and the limiting portion is in a truncated cone shape with an outer diameter at the upper end being larger than an outer diameter at the lower end; with this structure, the limiting portion will be covered by the airbag frame after injection molding, and the truncated cone-shaped limiting portion facilitates separation of the limiting portion from the airbag frame when the mold is opened.

[0007] As an improvement, the limiting component also includes a molding part, which is connected to the lower end surface of the upper template. A vertical through hole is provided in the middle of the molding part and the lower end of the limiting rod extends from the through hole. The molding part is also provided with a plurality of through grooves connected to the through hole. When the mold is closed, the molding part enters the mold cavity. With this structure, the molding part can form reinforcing ribs at the corresponding positions of the bolts, thereby further improving the structural strength of the airbag frame.

[0008] As an improvement, the limit assembly also includes a spring, the limit rod is vertically slidably connected in the upper template, and a spring is connected between the upper end of the limit rod and the upper template; with this structure, the spring can make the abutment between the limit rod and the bolt more stable.

[0009] As an improvement, the upper end surface of the lower template is provided with a plurality of positioning rods for limiting the position of the mesh, and the lower end surface of the upper template is provided with a plurality of avoidance holes corresponding one to the positioning rods and for the positioning rods to be inserted; by adopting this structure, the position of the mesh is accurately placed by the positioning rods, so that the relative position of the mesh and the airbag frame after injection molding is uniform and accurate.

[0010] As an improvement, the utility model also includes a base plate, the lower template is connected to the base plate, the upper surface of the base plate is provided with an installation cavity, the first top plate is vertically movably connected in the installation cavity, a plurality of ejector rods are connected to the first top plate, the top of each ejector rod is connected to a ejector block, the ejector block is movably connected in the lower template, and the upper end surfaces of the plurality of ejector blocks constitute part of the bottom surface of the mold cavity; with this structure, after the mold is opened, the first top plate drives the ejector rods and the ejector blocks to eject the airbag frame out of the mold cavity for demolding.

[0011] As an improvement, a second top plate is vertically movably connected in the installation cavity and the second top plate is located above the first top plate, a plurality of ejector rods all pass through the second top plate, a plurality of ejector pins are connected to the second top plate, each ejector pin is movably connected in the lower template, and the upper end surfaces of the plurality of ejector pins constitute a partial bottom surface of the mold cavity; with this structure, although the ejector block can eject the airbag frame out of the mold cavity after the mold is opened, the airbag frame is still connected to the ejector block, and the contact area between the ejector block and the airbag frame is relatively large, making it difficult to remove the airbag frame, and the second top plate and the ejector pins are used to eject the airbag frame again, so that the airbag frame only contacts the ejector pins and the contact area is relatively small, making it easy to remove the airbag frame.

[0012] As an improvement, the first top plate and the second top plate are connected by a draw buckle, the first top plate is connected to the limiting column, and the lower template is located on the moving path of the limiting column moving upward; with this structure, the setting of the draw buckle enables the first top plate and the second top plate to move upward together for the first ejection, and after the limiting column of the first top plate is limited by the lower template, the first top plate stops moving, and the second top plate performs the second ejection. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional structural schematic diagram of the upper template part of the utility model.

[0014] Figure 2 for Figure 1 A partial enlarged view of part A in the middle.

[0015] Figure 3 It is a schematic diagram of the three-dimensional structure of the upper template part of the utility model from another angle.

[0016] Figure 4 It is a three-dimensional structural schematic diagram of the utility model.

[0017] Figure 5 It is a three-dimensional structural schematic diagram of the bottom plate part of the utility model.

[0018] Figure 6 It is a top view of the lower template part in the utility model.

[0019] Figure numerals: 1. upper template; 2. lower template; 3. placement hole; 4. limit assembly; 41. limit rod; 411. rod portion; 412. limit portion; 42. molded part; 43. spring; 5. through hole; 6. positioning rod; 7. avoidance hole; 8. bottom plate; 9. installation cavity; 10. first top plate; 11. ejector rod; 12. ejector block; 13. second top plate; 14. ejector pin; 15. buckle; 16. limit column; 17. through groove. DETAILED DESCRIPTION

[0020] The following is a detailed description of a safety airbag frame mold with mesh cloth according to the utility model in conjunction with the accompanying drawings.

[0021] like Figures 1 to 6 As shown, a safety airbag frame mold with a mesh cloth comprises an upper mold plate 1 and a lower mold plate 2. The top of the lower mold plate 2 is provided with a mold cavity for molding the safety airbag frame, and the bottom of the mold cavity is provided with a plurality of placement holes 3 for placing bolts. The specific positions of the placement holes 3 are determined according to the positions of the bolts after the safety airbag frame is molded.

[0022] like Figure 1 and Figure 2As shown, the upper template 1 is connected to a plurality of limit assemblies 4, each of which corresponds to the placement hole 3 one by one. The limit assemblies 4 include a limit rod 41, a molding part 42 and a spring 43. The upper end of the limit rod 41 is connected to the upper template 1 and the lower end of the limit rod 41 is exposed below the upper template 1. When the mold is closed, the lower end of the limit rod 41 abuts against the top of the bolt placed in the placement hole 3; specifically, the limit rod 41 includes a rod portion 411 and a limit portion 412, the rod portion 411 is connected to the upper template 1, the limit portion 412 is connected to the lower end of the rod portion 411 and exposed below the upper template 1, and the limit portion 412 is in a truncated cone shape with an upper outer diameter greater than a lower outer diameter; not only that, as Figure 3 As shown, the limit rod 41 is vertically slidably connected in the upper template 1, and a spring 43 is connected between the upper end of the limit rod 41 and the upper template 1. Specifically, the rod portion 411 is vertically slidably connected in the upper template 1, and the bottom end of the spring 43 is connected to the upper end of the rod portion 411.

[0023] like Figure 1 and Figure 2 As shown, the molding part 42 is connected to the lower end surface of the upper mold plate 1, a vertically arranged through hole 5 is provided in the middle of the molding part 42, and the lower end of the limiting rod 41 extends out from the through hole 5, and a plurality of through grooves 17 connected to the through hole 5 are also provided on the molding part 42. The through grooves 17 are arranged horizontally and there are four in total, which divide the molding part 42 into four independent parts. When the mold is closed, the molding part 42 enters the mold cavity, and the through holes 5 and the through grooves 17 form reinforcing ribs.

[0024] like Figure 6 As shown, the upper end surface of the lower template 2 is provided with a plurality of positioning rods 6 for limiting the position of the mesh, and the lower end surface of the upper template 1 is provided with a plurality of avoidance holes 7 which correspond one-to-one with the positioning rods 6 and for the positioning rods 6 to be inserted. Holes are arranged on the mesh, and the positioning rods 6 correspond one-to-one with each hole. When placing the mesh, the mesh is put on the positioning rods 6 using each hole.

[0025] like Figure 4 and Figure 5As shown, the utility model also includes a bottom plate 8, the lower mold plate 2 is connected to the bottom plate 8, the upper end surface of the bottom plate 8 is provided with a mounting cavity 9, a first top plate 10 is vertically movably connected in the mounting cavity 9, a plurality of top rods 11 are connected to the first top plate 10, and a top block 12 is connected to the top of each top rod 11, wherein every two top rods 11 are connected to a top block 12, the top block 12 is movably connected in the lower mold plate 2, and the upper end surfaces of the plurality of top blocks 12 constitute part of the bottom surface of the mold cavity; in addition, a second top plate 13 is vertically movably connected in the mounting cavity 9 and the second top plate 13 Located above the first top plate 10, a number of ejector rods 11 all pass through the second top plate 13, and a number of ejector pins 14 are connected to the second top plate 13. Each ejector pin 14 is movably connected to the lower template 2, and the upper end surfaces of the ejector pins 14 constitute a partial bottom surface of the mold cavity; the first top plate 10 and the second top plate 13 are connected by a draw buckle 15. The specific structure of the draw buckle 15 is the prior art and is not repeated here. The first top plate 10 is connected to a limiting column 16, and the limiting column 16 passes through the second top plate 13. The lower template 2 is located on the moving path of the limiting column 16 moving upward.

[0026] Before injection molding, each bolt is placed in each placement hole 3 respectively, and a limit assembly 4 is set on the upper template 1. When the mold is closed, the limit rod 41 is against the top of the bolt to limit the bolt to prevent the bolt from shifting in position during the injection molding process, so that the position of the bolts on the airbag frame is unified after injection molding, so that the airbag frame can be normally connected to the vehicle; when the mold is opened to eject the product, the first top plate 10 and the second top plate 13 move upward together for the first ejection. After the limit column 16 of the first top plate 10 is limited by the lower template 2, the first top plate 10 stops moving, and the second top plate 13 performs the second ejection.

[0027] The implementation modes of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above-mentioned one implementation mode, and all other embodiments obtained by those skilled in the art without making any creative work are within the scope of protection of the present invention.

Claims

1. A safety airbag frame mold with mesh, characterized in that: The invention comprises an upper template (1) and a lower template (2), wherein the top of the lower template (2) is provided with a mold cavity for molding a safety airbag frame, and the bottom surface of the mold cavity is provided with a plurality of placement holes (3) for placing bolts, and the upper template (1) is connected with a plurality of limit assemblies (4), each of the limit assemblies (4) corresponds to the placement holes (3) one by one, and the limit assemblies (4) comprise limit rods (41), the upper ends of the limit rods (41) are connected to the inside of the upper template (1) and the bottom ends of the limit rods (41) are exposed below the upper template (1), and when the molds are closed, the bottom ends of the limit rods (41) abut against the top ends of the bolts placed in the placement holes (3).

2. The airbag frame mold with mesh cloth according to claim 1, characterized in that: The limiting rod (41) comprises a rod portion (411) and a limiting portion (412); the rod portion (411) is connected inside the upper mold plate (1); the limiting portion (412) is connected to the bottom end of the rod portion (411) and exposed below the upper mold plate (1); the limiting portion (412) is in the shape of a truncated cone with an outer diameter at the upper end being greater than an outer diameter at the lower end.

3. The airbag frame mold with mesh cloth according to claim 1, characterized in that: The limiting assembly (4) also includes a molding part (42), the molding part (42) is connected to the lower end surface of the upper mold plate (1), a vertically arranged through hole (5) is provided in the middle of the molding part (42), and the lower end of the limiting rod (41) extends out of the through hole (5), and the molding part (42) is also provided with a plurality of through grooves (17) connected to the through hole (5), and the molding part (42) enters the mold cavity when the mold is closed.

4. The airbag frame mold with mesh cloth according to claim 1, characterized in that: The limiting assembly (4) further comprises a spring (43); the limiting rod (41) is vertically slidably connected inside the upper template (1); and the spring (43) is connected between the upper end of the limiting rod (41) and the upper template (1).

5. The airbag frame mold with mesh cloth according to claim 1, characterized in that: The upper end surface of the lower template (2) is provided with a plurality of positioning rods (6) for limiting the position of the mesh cloth, and the lower end surface of the upper template (1) is provided with a plurality of avoidance holes (7) corresponding one-to-one to the positioning rods (6) and for the positioning rods (6) to be inserted.

6. The airbag frame mold with mesh cloth according to claim 1, characterized in that: The mold assembly further comprises a bottom plate (8), the bottom mold (2) being connected to the bottom plate (8), the upper end surface of the bottom plate (8) being provided with a mounting cavity (9), a first top plate (10) being vertically movably connected in the mounting cavity (9), a plurality of top rods (11) being connected to the first top plate (10), the top end of each of the top rods (11) being connected to a top block (12), the top block (12) being movably connected in the bottom mold (2), and the upper end surfaces of the plurality of top blocks (12) forming part of the bottom surface of the mold cavity.

7. The airbag frame mold with mesh cloth according to claim 6, characterized in that: A second top plate (13) is movably connected vertically in the installation cavity (9) and the second top plate (13) is located above the first top plate (10); a plurality of the ejector rods (11) pass through the second top plate (13); a plurality of ejector pins (14) are connected to the second top plate (13); each of the ejector pins (14) is movably connected in the lower mold plate (2); and the upper end surfaces of the plurality of ejector pins (14) constitute part of the bottom surface of the mold cavity.

8. The airbag frame mold with mesh cloth according to claim 7, characterized in that: The first top plate (10) and the second top plate (13) are connected via a drawstring (15); the first top plate (10) is connected to a limiting column (16); and the lower template (2) is located on a moving path of the limiting column (16) moving upward.

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