A drug vibrating device for a safety airbag gas generator
By designing the funnel fixing frame, vibration funnel and propulsion mechanism in the airbag gas generator, the precise filling and fixed positioning of the ignition powder are achieved, and the problems of low efficiency and poor accuracy of the ignition powder filling in the existing technology are solved, and the improvement of the ignition powder filling efficiency and improvement of the Assembly efficiency and product performance.
Patent Information
- Application Number
- CN202011584031.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2020-12-28
- Publication Date
- 2025-01-03
- Estimated Expiration
- 2040-12-28
AI Technical Summary
The existing airbag gas generator vibrator device has low efficiency and poor accuracy in ignition powder filling, resulting in inaccurate assembly, splashing drugs and insufficient dose, affecting product performance and production efficiency.
A vibrating device including a funnel fixture, a vibration funnel, a propulsion mechanism and a vibrator is designed. The precise docking and quantitative filling of the ignition housing and the vibration funnel are achieved through the propulsion cylinder and the guide assembly, and combined with a pneumatic vibrator to reduce the influence of dust. and noise.
It realizes accurate filling and fixed positioning of ignition powder, improves assembly efficiency and tight chamber, solves the problems of insufficient dose and arching, and improves product performance.
Smart Images
Figure CN112622807B_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of a safety air bag gas generator oscillating device, in particular to a safety air bag gas generator oscillating device. Background Art
[0002] With the rapid development of the automobile industry, automobile safety technology has received more and more attention. The airbag system is a passive safety (see automobile safety performance) protection system. It is used in conjunction with seat belts to provide effective anti-collision protection for passengers. When a car collides, the car airbag can reduce the head injury rate by 25% and the facial injury rate by about 80%.
[0003] The airbag gas generator is mainly divided into the upper and lower shell structures of the generator, the filter, the ignition system and the gas generating agent. The ignition system is mainly used as the ignition device of the generator. After receiving the stimulation of the external system, the ignition system explodes and ignites. It is mainly composed of three parts: the ignition shell, the ignition agent and the electric squib. The ignition agent is the most important component of the ignition system. Different amounts of ignition agent have a great influence on the ignition time and ignition pressure, which is directly related to the life safety of passengers.
[0004] At present, the airbag generator vibration device directly places the ignition shell filled with ignition powder on the tooling plate for vibration. On the one hand, there are still many shortcomings in the assembly accuracy, lack of precise positioning and measures to prevent medicine splashing. On the other hand, the lack of flexibility of the mechanism can easily lead to the arch of the ignition powder injection process and the amount of medicine injected into the ignition shell is too little, which reduces the performance of the product. At the same time, it wastes a lot of manpower and costs and cannot meet the needs of modern manufacturing industry. Summary of the invention
[0005] The present invention aims at the technical problems existing in the prior art and provides a charge vibrating device for an airbag gas generator to solve the problems of low filling efficiency and poor filling accuracy of the ignition charge.
[0006] The technical solution of the present invention for solving the above-mentioned technical problems is as follows: a safety airbag gas generator vibration medicine device, comprising a funnel fixing frame assembled from top to bottom by a funnel fixing plate, a vertical plate and a horizontal plate; a vibration funnel is arranged on the funnel fixing plate; a circular hole facing the discharge port of the vibration funnel is provided on the horizontal plate; the safety airbag gas generator vibration medicine device also includes a propulsion mechanism arranged in the circular hole of the horizontal plate and a generator ignition shell support seat connected to the propulsion mechanism, a generator ignition shell fixing groove is provided in the generator ignition shell support seat, the propulsion mechanism is used to drive the generator ignition shell in the generator ignition shell support seat to dock with the vibration funnel in the vertical direction, so as to accurately load the ignition medicine into the generator ignition shell; a vibrator is also provided on the vertical plate, and the vibrator is used to drive the ignition medicine to vibrate so as to be tightly filled in the generator ignition shell.
[0007] The beneficial effects of the present invention are as follows: the powder vibrating device for an airbag gas generator is suitable for the ignition powder filling operation of the generator ignition shell, can quantitatively fill the ignition powder into the generator ignition shell and fix the generator ignition shell and press the vibrating powder, which can ensure the accuracy of the ignition powder filling amount and solve the problem of arching in the ignition powder filling process, effectively improving the assembly efficiency of the airbag gas generator and the airtightness of the ignition powder, and improving the performance of the generator product.
[0008] Based on the above technical solution, the present invention can also be improved as follows.
[0009] Furthermore, the propulsion mechanism includes a propulsion cylinder, and the output shafts of the propulsion cylinder are connected via a floating joint.
[0010] The beneficial effect of adopting the above further solution is that the generator ignition housing support seat is pushed by the propulsion cylinder to achieve precise docking between the generator ignition housing and the vibration funnel.
[0011] Furthermore, it also includes a guide component connected to the generator ignition housing support seat to achieve opposite movement between the ignition housing support seat and the funnel fixing frame.
[0012] The beneficial effect of adopting the above further solution is that the moving direction of the fire shell support seat is limited by the guide component, thereby preventing the position of the fire shell support seat from being offset when it is connected to the vibration funnel.
[0013] Furthermore, the guide assembly includes a support plate connected to the generator ignition housing support seat; a plurality of guide shafts arranged along the vertical direction are arranged on the support plate; and the guide shafts are slidably matched with linear bearings arranged on the transverse plate.
[0014] The beneficial effect of adopting the above further solution is that the position of the generator ignition housing support seat can be moved more accurately through the sliding cooperation between the guide shaft and the linear bearing.
[0015] Furthermore, the guide shaft is also provided with a fixing ring located below the transverse plate, and the position of the fixing ring is adjustable.
[0016] The beneficial effect of adopting the above further solution is that the additional fixing ring limits the guide shaft to prevent the thrust of the propulsion cylinder from being too large and squeezing and deforming the funnel fixing plate.
[0017] Furthermore, the vibration funnel is detachably connected to the funnel fixing plate, and a rotating plunger for fixing the vibration funnel is provided on the funnel fixing plate.
[0018] The beneficial effect of adopting the above further solution is that the vibration funnel adopts a detachable design, so that vibration funnels of different specifications can be replaced according to the specifications of the corresponding generator ignition shell, so as to increase the applicability of the entire device.
[0019] Furthermore, it also includes a supporting frame installed under the horizontal plate; the supporting frame includes a plurality of evenly arranged supporting shafts and a base connected to the supporting shafts.
[0020] Furthermore, a plurality of evenly distributed shockproof rubber seats are arranged at the bottom of the base.
[0021] The beneficial effect of adopting the above further solution is that the cross plate is suspended by the support shaft, which reserves sufficient installation space for the propulsion mechanism. At the same time, the added shock-proof rubber seat can reduce the vibration of the device operation, ensuring the vibration effect while reducing noise.
[0022] Furthermore, a buffer pad is also provided on the bottom end surface of the vibration funnel to reduce the impact force during the docking between the generator ignition housing support seat and the vibration funnel.
[0023] Furthermore, the vibrator is a pneumatic vibrator or an electric vibrator. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention;
[0025] Figure 2 It is a cross-sectional schematic diagram of the present invention;
[0026] Figure 3 This is a structural schematic diagram of the present invention from another perspective.
[0027] In the accompanying drawings, the components represented by the reference numerals are listed as follows:
[0028] 1. Funnel fixing frame, 1a. Funnel fixing plate, 1b. Vertical plate, 1c. Horizontal plate, 2. Vibrating funnel, 2a. Rotating plunger, 2b. Buffer pad, 3. Generator ignition shell support seat, 3a. Propulsion cylinder, 3b. Floating joint, 4. Vibrator, 51. Support plate, 52. Guide shaft, 53. Linear bearing, 54. Fixed ring, 61. Support shaft, 62. Base, 63. Shockproof rubber seat, 7. Platform, 8. Generator ignition shell. DETAILED DESCRIPTION
[0029] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.
[0030] The present invention provides the following preferred embodiments
[0031] like Figure 1 , Figure 2 and Figure 3 As shown, the airbag gas generator vibration device comprises a funnel fixing frame 1 which is assembled from top to bottom by a funnel fixing plate 1a, a vertical plate 1b and a horizontal plate 1c; a vibration funnel 2 is arranged on the funnel fixing plate 1a; a circular hole facing the discharge port of the vibration funnel 2 is opened on the horizontal plate 1c; the airbag gas generator vibration device also comprises a propulsion mechanism arranged in the circular hole of the horizontal plate 1c and a generator ignition shell support seat 3 connected to the propulsion mechanism, a generator ignition shell fixing groove is opened in the generator ignition shell support seat 3, and the propulsion mechanism is used to drive the generator ignition shell in the generator ignition shell support seat 3 to dock with the vibration funnel 2 in the vertical direction, so as to accurately load the ignition charge into the generator ignition shell; in this embodiment, the vibration funnel 2, the generator ignition shell, the generator ignition shell support seat 3 and the propulsion mechanism are coaxially distributed in the vertical direction in sequence. The vertical plate 1b is also provided with a vibrator 4, which is used to drive the ignition powder to vibrate so as to be tightly packed in the generator ignition shell. The airbag gas generator vibrator is suitable for the generator ignition shell to perform ignition powder filling operations, can quantitatively fill the ignition powder into the generator ignition shell and fix the generator ignition shell and press the vibrator, which can ensure the accuracy of the ignition powder filling amount and solve the problem of arching in the ignition powder filling process, effectively improve the assembly efficiency of the airbag gas generator and the airtightness of the ignition powder, and improve the performance of the generator product.
[0032] It should be noted that the vibrator 4 is a pneumatic vibrator or an electric vibrator, and a pneumatic vibrator is preferred in this embodiment. Since dust is easily present in the charging environment, the pneumatic vibrator is less affected and has better load-bearing capacity.
[0033] In this embodiment, the propulsion mechanism includes a propulsion cylinder 3a, and the output shaft of the propulsion cylinder 3a is connected via a floating joint 3b. The propulsion cylinder 3a pushes the generator ignition housing support seat 3 to achieve accurate docking of the generator ignition housing and the vibration funnel 2.
[0034] In this embodiment, the airbag gas generator vibration device further includes a guide assembly connected to the generator ignition housing support seat 3 to achieve the opposite movement of the ignition housing support seat 3 and the funnel fixing frame 1. The guide assembly limits the movement direction of the generator ignition housing support seat 3 to prevent the position of the ignition housing support seat 3 from being offset when docking with the vibration funnel 2.
[0035] In order to accurately position the generator ignition housing, the guide assembly includes a support plate 51 connected to the generator ignition housing support seat 3; the support plate 51 is provided with a plurality of guide shafts 52 arranged in the vertical direction; the guide shafts 52 are slidably matched with the linear bearings 53 provided on the horizontal plate 1c. In this embodiment, two guide shafts 52 are provided, and the two guide shafts 52 are symmetrically distributed along the two sides of the generator ignition housing. The guide shafts 52 are slidably matched with the linear bearings 53 to make the position of the generator ignition housing support seat 3 move more accurately.
[0036] In addition, the guide shaft 52 is also provided with a fixing ring 54 located below the horizontal plate 1c, and the position of the fixing ring 54 is adjustable. The fixing ring 54 is open-type and fixed by bolts. By fixing the fixing ring 54 at a corresponding position on the guide shaft 52, the guide shaft 52 is limited to prevent the thrust of the propulsion cylinder 3a from being too large and squeezing and deforming the funnel fixing plate 1a.
[0037] In this embodiment, the vibration funnel 2 is detachably connected to the funnel fixing plate 1a, and the funnel fixing plate 1a is provided with a rotating plunger 2a for fixing the vibration funnel 2. The vibration funnel 2 is detachably designed, so that vibration funnels 2 of different specifications can be replaced according to the specifications of the corresponding generator ignition shell to increase the applicability of the entire device.
[0038] In this embodiment, the device further includes a support frame mounted below the horizontal plate 1c; the support frame includes a plurality of evenly arranged support shafts 61 and a base 62 connected to the support shafts 61. A plurality of evenly distributed anti-vibration rubber seats 63 are provided at the bottom of the base 62. The horizontal plate 1c is suspended by the support shafts 61, and sufficient installation space is reserved for the propulsion mechanism. At the same time, the added anti-vibration rubber seats 63 can reduce the vibration of the device during operation, ensuring the drug vibration effect while reducing noise.
[0039] In this embodiment, a buffer pad 2b is also provided on the bottom end surface of the vibration funnel 2. The buffer pad 2b is made of nylon material and has a circular hole in the center to cooperate with the flow port at the lower end of the vibration funnel 2 to reduce the impact force during the docking between the generator ignition shell support seat 3 and the vibration funnel 2.
[0040] The working principle of the present invention is as follows:
[0041] To load the generator ignition shell, first install the entire airbag gas generator vibration device on the corresponding platform, control the propulsion cylinder 3a to be in a retracted state, so that the generator ignition shell support seat 3 is away from the vibration funnel 2, thereby reserving sufficient loading space, and then place the generator ignition shell 8 into the generator ignition shell fixing groove in the generator ignition shell support seat 3, thereby completing the preliminary loading of the generator ignition shell.
[0042] Generator ignition shell charging process After the generator ignition shell 8 is loaded, the propulsion cylinder 3a is controlled to push the generator ignition shell support seat 3 close to the vibration funnel 2, so that the generator ignition shell 8 and the vibration funnel 2 are accurately docked, and then a standard amount of ignition powder is injected through the filling port of the vibration funnel 2. After the ignition powder enters the generator ignition shell 8, the vibrator 4 is started to solve the arch problem in the ignition powder charging process, effectively improve the assembly efficiency of the airbag gas generator and the airtightness of the ignition powder, and improve the performance of the generator product.
[0043] Finally, the propulsion cylinder 3a is controlled to be in a retracted state, so that the generator ignition shell support seat 3 is away from the vibration funnel 2, and the loaded generator ignition shell is taken out to complete a working cycle.
[0044] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims
1. A drug vibrating device for an airbag gas generator, characterized in that: The invention comprises a funnel fixing frame (1) which is assembled from top to bottom by a funnel fixing plate (1a), a vertical plate (1b) and a horizontal plate (1c); a vibration funnel (2) is arranged on the funnel fixing plate (1a); a circular hole is provided on the horizontal plate (1c) and is directly opposite to the discharge port of the vibration funnel (2); the airbag gas generator vibrating medicine device also comprises a propulsion mechanism arranged in the circular hole of the horizontal plate (1c) and a generator ignition shell support seat (3) connected to the propulsion mechanism, the generator ignition shell support seat (3) is provided with a generator ignition shell fixing groove, and the propulsion mechanism is used to drive the generator ignition shell to move. The generator ignition shell in the body support seat (3) is connected to the vibration funnel (2) in the vertical direction, so that the ignition powder can be accurately loaded into the generator ignition shell; the vertical plate (1b) is also provided with a vibrator (4), and the vibrator (4) is used to drive the ignition powder to vibrate so as to be tightly filled in the generator ignition shell; the propulsion mechanism includes a propulsion cylinder (3a), and the output shaft of the propulsion cylinder (3a) is connected via a floating joint (3b); and also includes a guide component connected to the generator ignition shell support seat (3) to realize the ignition shell support seat (3) and the funnel fixing frame (1) to move in opposite directions.
2. The airbag gas generator drug vibrating device according to claim 1, characterized in that: The guide assembly comprises a support plate (51) connected to a generator ignition housing support seat (3); a plurality of guide shafts (52) arranged in a vertical direction are arranged on the support plate (51); and the guide shafts (52) are slidably matched with linear bearings (53) arranged on the horizontal plate (1c).
3. The airbag gas generator drug vibrating device according to claim 2, characterized in that: The guide shaft (52) is also provided with a fixing ring (54) located below the transverse plate (1c), and the position of the fixing ring (54) is adjustable.
4. The airbag gas generator vibrating device according to claim 1, characterized in that: The vibrating funnel (2) is detachably connected to the funnel fixing plate (1a), and a rotating plunger (2a) for fixing the vibrating funnel (2) is provided on the funnel fixing plate (1a).
5. The airbag gas generator drug vibrating device according to claim 1, characterized in that: It also includes a support frame mounted below the horizontal plate (1c); the support frame includes a plurality of evenly arranged support shafts (61) and a base (62) connected to the support shafts (61).
6. The airbag gas generator drug vibrating device according to claim 5, characterized in that: The bottom of the base (62) is provided with a plurality of evenly distributed anti-vibration rubber seats (63).
7. The airbag gas generator drug vibrating device according to claim 1, characterized in that: A buffer pad (2b) is also provided on the bottom end surface of the vibration funnel (2) for reducing the impact force during the docking between the generator ignition housing support seat (3) and the vibration funnel (2).
8. The airbag gas generator drug vibrating device according to claim 1, characterized in that: The vibrator (4) is a pneumatic vibrator or an electric vibrator.