CN221048916U - Novel injection mold of gasbag shroud - Google Patents
Novel injection mold of gasbag shroud Download PDFInfo
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- CN221048916U CN221048916U CN202322427693.XU CN202322427693U CN221048916U CN 221048916 U CN221048916 U CN 221048916U CN 202322427693 U CN202322427693 U CN 202322427693U CN 221048916 U CN221048916 U CN 221048916U
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- right inclined
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- 238000002347 injection Methods 0.000 title claims abstract description 23
- 239000007924 injection Substances 0.000 title claims abstract description 23
- 238000001746 injection moulding Methods 0.000 claims abstract description 20
- 238000001816 cooling Methods 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 4
- 239000003292 glue Substances 0.000 abstract description 9
- 230000007547 defect Effects 0.000 abstract description 6
- 230000001603 reducing effect Effects 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
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Abstract
The utility model discloses an injection mold of a novel air bag cover cap, which comprises: a lower die core fixedly arranged; the upper die core is arranged right above the lower die core and can move up and down along the vertical direction; an insert embedded in the lower die core; left and right inclined ejector blocks arranged in the lower die core and positioned at the left and right sides of the inner insert; the upper ends of the left and right inclined ejector rods penetrate through the lower die core and then are connected with the left and right inclined ejector rods; left and right inclined bosses are formed on the outer side surfaces of the left and right inclined top blocks, which are close to the root of the wall body of the air bag cover, on the side surface of the inner insert. According to the utility model, the left inclined boss and the right inclined boss are arranged on the side surfaces of the left inclined jacking block and the right inclined jacking block, so that the inner tearing groove does not need to be increased in demolding inclination while the glue reducing effect is achieved, the demolding is easier, the glue position is more uniform, and the defects of shrinkage in appearance, surface stress marks and the like of injection molding of products are effectively overcome.
Description
Technical Field
The utility model relates to the technical field of automobile safety airbag manufacturing equipment, in particular to an injection mold of a novel airbag cover.
Background
With the increase of the popularization rate of passenger vehicles in the market, people are also raising the safety awareness of automobiles. At present, most vehicles are provided with automobile safety airbags, so that protection is effectively provided for passengers, and the passive safety restraint protection capability of the vehicles is greatly improved.
An airbag cover is one of important components in an automobile airbag, the airbag cover is usually formed by integral injection molding, and a mold design of the airbag cover is usually designed according to a product structure of the airbag cover so as to meet development requirements. Because be formed with a T shape structure between the wall body of gasbag shroud and the panel junction, in addition its inside has tearing groove, in order to solve the shrinkage scheduling defect of injection moulding's gasbag shroud, through doing the design of subtracting glued structure in the root inboard of the wall body of gasbag shroud, but because the inside tearing groove that is provided with of gasbag shroud, tearing groove must increase the drawing of patterns inclination, leads to the drawing of patterns inclination to increase, and the position of glue is thinned, and surface appearance stress mark can become more obvious, leads to product structure complicacy and with high costs.
In order to solve the above problems, the present inventors have found a method for solving the above problems through beneficial studies and studies. Referring to fig. 1, a novel airbag cover is shown, which comprises a cover panel 10 and a cover wall 20 arranged on the lower plate surface of the cover panel 10, wherein the cover wall 20 is formed by enclosing a front wall 21, a rear wall 22, a left wall 23 and a right wall 24. The outer side surfaces of the roots of the front wall body 21 and the rear wall body 22 are subjected to glue reducing treatment, so that the demoulding inclination of the internal tearing groove is not required to be increased, glue positions are more uniform, defects of shrinkage of the appearance, surface stress marks and the like of injection molding of products are effectively overcome, the structure is simpler, and the manufacturing cost of the products is reduced.
In order to accommodate the production of the novel airbag cover, the present inventors have improved on existing airbag cover molds, and the technical solutions described below are created in this context.
Disclosure of utility model
The technical problems to be solved by the utility model are as follows: aiming at the defects of the prior art, the injection mold of the novel air bag cover cap has the advantages of no increase of demoulding inclination, simple structure and low preparation cost.
The technical problems to be solved by the utility model can be realized by adopting the following technical scheme:
an injection mold for a novel airbag cover, comprising:
A lower die core fixedly arranged;
The upper die core is arranged right above the lower die core and can move up and down along the vertical direction;
An insert embedded in the lower die core;
left and right inclined ejector blocks arranged in the lower die core and positioned at the left and right sides of the inner insert; and
The upper ends of the left and right inclined ejector blocks penetrate through the lower die core and then are connected with the left and right inclined ejector blocks, and the lower ends of the left and right inclined ejector blocks are connected with an inclined ejector rod driving mechanism and used for driving the left and right inclined ejector blocks to reciprocate along the axial direction of the left and right inclined ejector rods;
an air bag cover injection molding cavity is formed between the lower die core, the upper die core, the inner insert and the left and right inclined top blocks in a surrounding manner; it is characterized in that the method comprises the steps of,
Left and right inclined bosses are formed on the outer side surfaces of the left and right inclined top blocks, which are close to the root of the wall body of the air bag cover, on the side surface of the inner insert.
In a preferred embodiment of the present utility model, cooling water paths for cooling are respectively provided in the lower mold core, the upper mold core, the insert and the left and right inclined top blocks.
In a preferred embodiment of the present utility model, an air vent groove communicating with the air bag cover injection mold cavity is formed on an end face of the upper mold core facing the lower mold core.
Due to the adoption of the technical scheme, the utility model has the beneficial effects that: according to the utility model, the left inclined boss and the right inclined boss are arranged on the side surfaces of the left inclined jacking block and the right inclined jacking block, so that the glue reducing effect is achieved, the demoulding inclination of the internal tearing groove is not required to be increased, the demoulding is easier, the glue position is more uniform, the defects of shrinkage of the appearance, surface stress marks and the like of the product injection molding are effectively overcome, meanwhile, the structure of the utility model is simpler, and the manufacturing cost of the product is reduced.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of an injection molded airbag cover of the present utility model.
Fig. 2 is a longitudinal cross-sectional view of an injection molded airbag cover of the present utility model.
Fig. 3 is a schematic structural view of the present utility model.
Fig. 4 is an assembly schematic diagram of the lower mold insert and the left and right inclined ejector blocks of the present utility model.
Fig. 5 is a schematic structural view of an upper mold insert according to the present utility model.
Fig. 6 is a schematic diagram of the assembly of the left oblique ejector block and the left oblique ejector rod of the present utility model.
Fig. 7 is an assembly schematic diagram of the right oblique ejector block and the right oblique ejector rod of the present utility model.
Fig. 8 is a schematic view of the structure of the insert of the present utility model.
Detailed Description
The utility model is further described with reference to the following detailed drawings in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the implementation of the utility model easy to understand.
Referring to fig. 3 in combination with fig. 4 to 8, there is shown an injection mold of a novel airbag cover, comprising a lower mold core 100, an upper mold core 200, an insert 300, left and right inclined ejector blocks 400a, 400b, and left and right inclined ejector rods 500a, 500b.
The lower die core 100 is fixedly arranged on a die mounting plate of an injection molding machine tool through a fastener. The upper core 200 is disposed on a lifting mechanism of an injection molding machine by a fastening member, is located right above the lower core 100, and is movable up and down in a vertical direction. The insert 300 is inserted into the lower mold core 100. Left and right angled roof blocks 400a, 400b are disposed in the lower core 100 and located on the left and right sides of the insert 300. The upper ends of the left and right inclined ejector rods 500a, 500b penetrate through the lower die core 100 and then are connected with the left and right inclined ejector blocks 400a, 400b, and the lower ends thereof are used for being connected with an inclined ejector rod driving mechanism of an injection molding machine tool and driving the left and right inclined ejector blocks 400a, 400b to reciprocate along the axial direction of the left and right inclined ejector rods 500a, 500 b. An airbag cover injection mold cavity 600 is formed between the lower mold core 100, the upper mold core 200, the insert 300, and the left and right diagonal top blocks 400a, 400 b.
Referring to fig. 6 and 7 in combination with fig. 1, left and right inclined protrusions 410a and 410b are formed on the outer sides of the root portions of the walls of the airbag cover near the left and right inclined top blocks 400a and 400b facing the insert 300, so that the inner inclined thin inclined surfaces 21a and 22a are formed on the outer sides of the root portions of the front and rear walls 21 and 22 of the airbag cover after injection molding, as shown in fig. 2, the inner tearing grooves do not need to increase the demoulding inclination while the glue reducing effect is achieved, the demoulding is easier, the glue level is more uniform, and the defects of shrinkage of the appearance, surface stress marks and the like of the injection molded products are effectively solved.
In order to better perform cooling treatment on the mold, cooling waterways 700 for cooling are respectively arranged in the lower mold core 100, the upper mold core 200, the inner insert 300 and the left and right inclined top blocks 400a and 400b, so that the cooling effect of the injection mold is better, and the demolding quality of the injection mold is improved.
An air vent groove (not shown) communicating with the air bag cover injection mold cavity 600 is formed on the end surface of the upper mold core 200 facing the lower mold core 100, so as to facilitate the air in the air bag cover injection mold cavity 600 to be exhausted, and improve the injection molding effect.
The working process of the injection mold of the novel air bag cover cap is as follows:
Mounting each component in the injection mold to an injection molding machine; during injection molding, injection molding is performed to the air bag cover injection molding cavity 600 through an injection molding channel formed in the lower die core 100, redundant air in the air bag cover injection molding cavity 600 is emptied through an exhaust groove in the injection molding process, and after injection molding is completed, cooling treatment is performed through a cooling waterway 700, and then demoulding is performed; during demolding, the upper mold core 200 is moved upwards to be opened, the left and right inclined ejector blocks 400a and 400b are ejected by the left and right inclined ejector rods 500a and 500b, and then the injection molded air bag cover is ejected and demolded by the demolding ejector rod in the inner insert 300.
The foregoing has shown and described the basic principles and main features of the present utility model and the advantages of the present utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (3)
1. An injection mold for a novel airbag cover, comprising:
A lower die core fixedly arranged;
The upper die core is arranged right above the lower die core and can move up and down along the vertical direction;
An insert embedded in the lower die core;
left and right inclined ejector blocks arranged in the lower die core and positioned at the left and right sides of the inner insert; and
The upper ends of the left and right inclined ejector blocks penetrate through the lower die core and then are connected with the left and right inclined ejector blocks, and the lower ends of the left and right inclined ejector blocks are connected with an inclined ejector rod driving mechanism and used for driving the left and right inclined ejector blocks to reciprocate along the axial direction of the left and right inclined ejector rods;
an air bag cover injection molding cavity is formed between the lower die core, the upper die core, the inner insert and the left and right inclined top blocks in a surrounding manner; it is characterized in that the method comprises the steps of,
Left and right inclined bosses are formed on the outer side surfaces of the left and right inclined top blocks, which are close to the root of the wall body of the air bag cover, on the side surface of the inner insert.
2. The injection mold of a novel airbag cover according to claim 1, wherein cooling waterways for cooling are respectively arranged in the lower mold core, the upper mold core, the inner insert and the left and right oblique top blocks.
3. The injection mold of a novel airbag cover as claimed in claim 1, wherein an exhaust groove communicating with the airbag cover injection mold cavity is formed on an end surface of the upper mold core facing the lower mold core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322427693.XU CN221048916U (en) | 2023-09-07 | 2023-09-07 | Novel injection mold of gasbag shroud |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322427693.XU CN221048916U (en) | 2023-09-07 | 2023-09-07 | Novel injection mold of gasbag shroud |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221048916U true CN221048916U (en) | 2024-05-31 |
Family
ID=91225374
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322427693.XU Active CN221048916U (en) | 2023-09-07 | 2023-09-07 | Novel injection mold of gasbag shroud |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221048916U (en) |
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2023
- 2023-09-07 CN CN202322427693.XU patent/CN221048916U/en active Active
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