CN205967139U - Gas generator forming device - Google Patents

Abstract

The utility model discloses a gas generator forming device, including getting angry body forming device and finished product forming device, the body forming device and the finished product forming device of getting angry all is used for the mould and the positioning seat of binding off, and the positioning seat is used for unable adjustment base or semi -manufactured goods, and the mould has hollow structure and an one end open -ended tubular structure, can be for the positioning seat up -and -down motion, and the mould opening part is provided with annular concave surface for base or product extrusion close up. The utility model discloses degree of automation is high, and simple structure can carry out gas generator's shaping to high -efficient high quality, has alleviateed the burden of manpower. The utility model discloses the device still further utilizes elastomeric element's elasticity to realize the automation of product and takes out.

Description

A kind of gas generator shaped device

Technical field

This utility model belongs to gas generator technology field and in particular to a kind of gas generator shaped device.

Background technology

Seat belt is known as " life zone " of automobile, and it plays important protective effect to the personal safety of driver and crew, Its major function is to limit the displacement of driver or passenger during experience accident, it is to avoid the collision of occupant and other positions of car body occurs Injury, the extent of injury to occupant for the reduction accident.Belt with pre-load device is current using one of more a wide range of seat belt, pretension The feature of formula seat belt be when collision scenario accident in a flash, when occupant not yet moves forward it can first strain safety Occupant tightly " is tied up " on the seat, then locking seat belt prevents occupant from leaning forward by band immediately, effective protection occupant's Safety.

Gas generator (abbreviation MGG) is mainly used in belt with pre-load device, and when automobile occurs strong collision, gas is sent out Raw device point is fought and is produced a large amount of high temperature and high pressure gas, thus driving seat belt driving wheel to rotate, so that seat belt is rolled up on reel, Last lock in emergency coiler locking seat belt, so that the Distance Shortened of driver and crew's forward movement, reaches the effect of protection.Gas Body generator is the core component of belt with pre-load device, and the qualified MGG product of the quality of production just seems extremely crucial.

Gas generator includes igniter, the part such as shell equipped with gas generant composition in accordance, as shown in figure 1, base has for will Squib and base close up and form the closing in end I of igniter, and the closing in end II for igniter and shell close up.Receive During mouth, closing in end I curves inwardly, and wraps squib, completes igniter and closes up；Then closing in end II curves inwardly, with pipe Faucal portion hooks together, completes finished product and closes up.Existing closing device automaticity is low, often needs human assistance to complete；And After closing in, igniter and product take out more difficult from closing device, reduce shaping efficiency.Accordingly, it would be desirable to work out one kind Can quick, device that high-quality completes MGG formed product.

Utility model content

The purpose of this utility model is to provide a kind of gas generator shaped device, solves existing shaped device automatization Low degree and product take out difficult problem.

This utility model be employed technical scheme comprise that, a kind of gas generator shaped device, including body formed dress of getting angry Put and finished product shaped device；

Ignition body forming device is used for the closing in of squib and base, forms igniter, including upper mould and positioning seat I, Positioning seat I is used for firm banking；Upper mould is located above positioning seat I, for having the tubular construction of hollow structure and lower openings, with Press is connected, and moves up and down under the control of press above positioning seat I；At upper mould lower ending opening, internal diameter is slightly larger than base and closes up Width before the I closing in of end, and at its opening, it is provided with loop concave I, the shape of loop concave I is kissed with squib outer wall shape Close.

Finished product shaped device is used for the closing in of igniter and shell, and including positioning seat II and lower mould, positioning seat II is inverted, and uses In fixing igniter, and it is connected with press, move up and down under the control of press；Lower mould is located at below positioning seat II, for having Hollow structure and the tubular construction of upper opening, its cavity inner wall is matched with shell outer wall, and lower mould upper opening has annular Concave surface II, the shape of loop concave II is coincide with the shape after base closing in end II closing in.

The feature of this device also resides in：

The loop concave I of upper mould is by being arranged at the annular protrusion of bottom and coupled cavity inner wall shape in upper cavity body Become.

Further, from top to bottom it is provided with elastomeric element I and push rod I in upper cavity body, push rod I is located at annular protrusion In top, with upper cavity body, wall coordinates for gap, and its width is more than annular protrusion internal diameter；Elastomeric element I is placed on push rod I Surface.

Further, it is provided with elastomeric element II and push rod II in lower mode cavity body from the bottom to top, elastomeric element II lays In lower mode cavity body, push rod II is placed in above elastomeric element II, and coordinates for gap with wall in lower mode cavity body, and on push rod II The distance of end face to lower mould upper opening is less than shell height.

Further, the shape of loop concave I and 88 °～110 ° angle faces shapes of squib are coincide；Described annular is recessed Face II is shaped as annular circular arc concave surface, and radian is R1～R1.5, and cambered surface half-angle angle is 15 °～25 °.

Further, positioning seat I and positioning seat II is provided centrally with location hole or locating slot, for positioning squib.

The beneficial effects of the utility model are that device of the present utility model promotes loop concave to treat closing in by pressure Part is extruded, and completes the closing in of ideal form, high degree of automation, can carry out the one-tenth of gas generator high-effect high-quality Type, alleviates the burden of manpower；And this apparatus structure is simple, the press apparatus of use are cheap, and processing charges is low, operation side Just, substantially increase shaping speed.This utility model device also utilizes the elastic force of elastomeric element to push up cuff products in mould Go out, realize automatically taking out of product, structure simply it is easy to operation, solves the problems, such as that existing closing device product takes out difficult.

Brief description

Fig. 1 is gas generator design of part schematic diagram；Wherein Fig. 1 a is squib, and Fig. 1 b is base, and Fig. 1 c is pipe Shell；

Fig. 2 is the structural representation of positioning seat I in this utility model ignition body forming device；

Fig. 3 is the structural representation of this utility model ignition body forming device；

Fig. 4 is the enlarged diagram in A portion in Fig. 3；

Fig. 5 is the structural representation of positioning seat II in this utility model finished product shaped device；

Fig. 6 is the structural representation of this utility model finished product shaped device；

Fig. 7 is the enlarged diagram in B portion in Fig. 6.

In figure, 1. squib, 2. base, 3. base closing in end I, 4. base closing in end II, 5. shell；

6. positioning seat I, 61. square protrudings, 62. blind holes；

7. go up mould, 71. annular protrusions, 72. loop concave I, 73. glands, 74. elastomeric element I, 75. push rod I；

8. positioning seat II, 81. rectangular recess；

9. descend mould, 91. loop concave II, 92. cover plates, 93. plugs, 94. elastomeric element II, 95. push rod II；

10. sealing ring.

Specific embodiment

The utility model is described in further detail with reference to the accompanying drawings and detailed description, but this utility model It is not limited to these embodiments.

Gas generator shaped device of the present utility model includes ignition body forming device and finished product shaped device, stream oriented device Support the use.The structure of the gas generator being shaped by this device includes squib 1, base 2, shell 5, respectively as schemed Shown in 1a, 1b, 1c.

Ignition body forming device is used for squib 1 and base 2 are assembled together, and forms igniter, including upper mould 7 He Positioning seat I 6.The structure of positioning seat I 6 as shown in Fig. 2 its upper surface is provided with square protruding 61, its with base 2 on groove Mating shapes, base 2 can be fixed on positioning seat I 6, play the effect of positioning base 2.Meanwhile, in positioning seat I 6 The heart is designed with two blind holes 62, matches with two electrode needle of squib 1, the electrode needle inserted base 2 of squib 1 Afterwards, the electrode needle end part that it exposes just can correspond to downwards in the blind hole 62 of insertion positioning seat I 6, plays positioning squib 1 effect.Upper mould 7 is located at the top of positioning seat I 6, as shown in figure 3, tying for having the cylindrical shape of hollow structure and upper and lower opening Structure, it is connected with press, can move up and down under the control of press above positioning seat I 6.At upper mould 7 cavity lower ending opening Large diameter is slightly larger than the Breadth Maximum before base closing in end I 3 closing in, and base closing in end I 3 can be contained in cavity.Upper mould 7 chamber Internal bottom is provided with annular protrusion 71, the lower surface of annular protrusion 71 and coupled cavity inner wall shape for closing up Circularize concave surface I 72, the shape of loop concave I 72 is matched with squib 1 outer wall shape, as shown in figure 4, upper mould 7 to During lower motion, loop concave I 72 extrudes base closing in end I 3, makes base closing in end I 3 using the shape of loop concave I 72 Tightly wrap squib 1 (88 °～110 °) angle faces (full-shape), complete to close up.Due to the shape at squib 1 closing in How based on angle, it is aided with the circular arc R 1.5～R2.5 (mm) of transition, therefore, upper mould 7 closing in shape matches therewith, with angle is Main, supplemented by arc transition.

Igniter is taken out, as shown in figure 3, being provided with gland 73, elastomeric element I in upper mould 7 cavity after closing up for convenience 74 and push rod I 75.Upper mould 7 is threaded connection and is fixedly connected with gland 73, makes mould 7 top form enclosed construction.Push rod I 75 are located in the middle of gland 73 and annular protrusion 71, coordinate for gap with upper mould 7 cavity inner wall, and its width is more than annular protrusion 71 Internal diameter, elastomeric element I 74 is arranged between gland 73 and push rod I 75, and is connected with push rod I 75 upper surface.Gland 73 with Upper mould 7 moves downward, and transfers force to push rod I 75 by spring, makes push rod produce downward pressure to squib 1, elasticity Part I 74 is squeezed deformation；Upper mould 7 completes to close up when moving upwards, and elastomeric element I 74 restores to the original state and push rod I relatively 75 apply downward elastic force, make push rod I 75 that igniter is ejected downwards upper mould 7, realize Automatic-falling.

Finished product shaped device is used for the igniter assembling is assembled together with shell 5, including positioning seat II 8 with Mould 9.The structure of positioning seat II 8 and shape are essentially the same with positioning seat I 6, and its structure is as shown in figure 5, have for fixing bottom The square protruding 61 of seat 2, difference is, during use, positioning seat II 8 is to be inverted with respect to positioning seat I 6, and its centralized positioning Be shaped as rectangular recess 81, that is, to the igniter assembling inverted can be fixed on positioning seat II 8 under its rectangular recess 81 On.In addition, positioning seat II 8 is connected with press, under the control of press, positioning seat II 8 moves up and down above lower mould 9.Lower mould 9 lower sections being located at positioning seat II 8, as shown in fig. 6, lower mould 9 is have hollow structure and upper and lower opening columnar structured, under Mould 9 upper opening edge indent, forms loop concave II 91, and the shape of this loop concave II 91 is intended with base closing in end II 4 After the closing in being formed, shape is consistent, and after generally closing up, outer wall is shaped as circular arc, and radian is R1～R1.5 (mm), therefore loop concave II 91 is shaped as circular arc R 1～R1.5, tighter in order to close up, and the half-angle angle design of cambered surface is 15 °～25 °, as Fig. 7 institute Show.Lower mould 9 cavity inner wall is mated with shell 5 outer wall, and shell 5 is contained in lower mould 9 cavity just.Positioning seat II 8 drives and gets angry When body moves downward, when base closing in end II 4 runs into lower mould 9 loop concave, bend under the extruding of loop concave II, and with Shell 5 opening is tightened up, and completes to close up.

It is provided with cover plate 92 at lower mould 9 lower ending opening, and uses mode connects for screw, as shown in fig. 6, cover plate 92 is threaded connection There is plug 93, make lower mould 9 bottom form enclosed construction.Plug 93 upper surface is placed or is fixed with elastomeric element II 94, elastic Part II 94 upper ends or be fixed with push rod II 95, push rod II 95 and lower mould 9 cavity inner wall are gap cooperation, and push rod II The distance of 95 upper surfaces to lower mould 9 upper opening is less than shell 5 height, when shell 5 puts into lower mould 9, its bottom and push rod II 95 Contact, open top is higher than lower mould 9 upper opening.When press applies downward active force to positioning seat II 8, positioning seat II 8 downward active forces pass to the igniter being assembled in place and shell 5, drive shell 5 also to move downward, shell 5 contact top Bar II 95 simultaneously applies down force to it, and this active force makes elastomeric element II 94 produce compression, when closing in completes, unloads Remove press pressure, remove positioning seat II 8, elastomeric element II 94 restores to the original state, and produces active force upwards to push rod II 95, should Active force is delivered to shell 5, closes up the finished product completing in the presence of elastomeric element II 94 elastic force, automatically pops up lower mould 9, so far complete closing in and the assembling of whole product.

The elastic parameter of elastomeric element I 74 of the present utility model and elastomeric element II 94 is that impact product removes and product The key factor of quality and safety, this utility model elastomeric element adopts spring, such as igniter, if spring is straight Footpath is oversized and pitch is too small, then gland vertical adjustment amount is little, and the lower surface of closing in after-fire body occurs that deformation, swollen footpath are asked Inscribe, and igniter can drop suddenly from upper cavity body, directly influences safety and the presentation quality of product.If spring is straight Footpath is undersized and pitch is excessive, then gland vertical adjustment amount is big, and the effect Dipeptiven that after closing in, spring transmits to push rod is little, gets angry Body is not enough to overcome itself frictional force and upper cavity body between it is difficult to Automatic-falling, reduces the efficiency closing up.Therefore, select to close Suitable elastomeric element is most important.The pitch of this utility model spring I and spring II is preferably 3mm～4mm, and the diameter of spring is excellent Elect 1mm～1.5mm as, the spring of this size enables igniter automatic spring and ensures product quality.

During using device forming gas generator of the present utility model, specifically follow the steps below：

S1, igniter closes up：Base 2 is fixed on the positioning seat I 6 of finished product shaped device, and squib 1 is led to Cross blind hole 62 to be accurately fixed on base 2, start press, upper mould 7 moves downward, using upper mould inwall annular protrusion 71 and die cavity The shape of the loop concave I of inwall extrudes to base closing in end I 3, and by push rod I 75 downwardly against squib 1 Make spring I produce deformation, pressurize certain time, complete to close up, shed pressure, upper mould 7 moves upwards, spring I restores to the original state, to The igniter that lower ejection assembles.

S2, finished product closes up：Will be equipped with opening up embedded lower mould 9 cavity of shell 5 of gas generant composition in accordance, and by the ignition assembling Body is accurately fixed on the positioning seat II 8 of finished product shaped device by rectangular recess 81, and positioning seat II 8 is inverted in lower mould 9 On, so that shell 5 opening is embedded in the annular groove of closing in end I and closing in end II of base.Start press, positioning seat II 8 drives Igniter, shell 5 move down, and using the loop concave shape at lower mould upper opening, the closing in end II of base 2 are extruded, make Closing in end II and shell 5 complete to close up；Shell 5 contacts push rod II 95 and applies pressure to spring II simultaneously, so that spring II is produced Deformation, pressurize sheds pressure after certain time, removes positioning seat II 8, and spring II restores to the original state, and ejection upwards completes closing in Finished product.

The pressure that this utility model is used when igniter being closed up using upper mould 7 is 350kg～500kg, using lower mould 9 The pressure being used during closing in finished product is 700kg～1000kg.At this pressure, the sealing of guarantee semi-finished product, finished product Property；Ensure the quality of cuff products.

Further, it is provided with sealing ring 10 between squib 1 and base closing in end I 3, igniter can be strengthened and receive Sealing effectiveness after mouthful, makes the better tightness of closing in after-fire body.

The advantage that this utility model device compares conventional apparatus is：Good airproof performance after closing in, end product quality is guaranteed, produces Efficiency high.

This utility model above description is section Example, but this utility model is not limited to above-mentioned concrete reality Apply mode.Above-mentioned specific embodiment is schematic, is not restricted.Every using device of the present utility model, In the case of without departing from this utility model objective and scope of the claimed protection, all concrete expansions all belong to this utility model Protection domain within.

Claims (7)

1. a kind of gas generator shaped device is it is characterised in that include ignition body forming device and finished product shaped device；

Ignition body forming device is used for the closing in of squib and base, forms igniter, including upper mould and positioning seat I, positioning Seat I is used for firm banking；Upper mould is located above positioning seat I, for having the tubular construction of hollow structure and lower openings, with press It is connected, move up and down above positioning seat I under the control of press；At upper mould lower ending opening, internal diameter is slightly larger than base closing in end I It is provided with loop concave I, the shape of loop concave I is coincide with squib outer wall shape at width before closing in, and its opening；

Finished product shaped device is used for the closing in of igniter and shell, and including positioning seat II and lower mould, positioning seat II is inverted, for solid Determine igniter, and be connected with press, move up and down above lower mould under the control of press；Lower mould is located at below positioning seat II, For having the tubular construction of hollow structure and upper opening, its cavity inner wall is matched with shell outer wall, lower mould upper opening tool There is loop concave II, the shape of loop concave II is coincide with the shape after base closing in end II closing in.

2. gas generator shaped device according to claim 1 it is characterised in that described upper mould loop concave I by It is arranged at the annular protrusion of bottom and coupled cavity inner wall in upper cavity body to be formed.

3. gas generator shaped device according to claim 2 it is characterised in that in described upper cavity body from top to bottom It is provided with elastomeric element I and push rod I, push rod I is located above annular protrusion, coordinates for gap with wall in upper cavity body, and it is wide Degree is more than annular protrusion internal diameter；Elastomeric element I is placed in push rod I upper surface.

4. gas generator shaped device according to claim 1 it is characterised in that in described lower mode cavity body from the bottom to top It is provided with elastomeric element II and push rod II, elastomeric element II is placed in lower mode cavity body, and push rod II is placed on elastomeric element II Side, and coordinate for gap with wall in lower mode cavity body, and the distance of push rod II upper surface to lower mould upper opening is less than shell height Degree.

5. the gas generator shaped device according to claim 3 or 4 is it is characterised in that described elastomeric element I and elasticity Part II adopts spring, and the pitch of spring is 3～4mm, a diameter of 1～1.5mm.

6. gas generator shaped device according to claim 1 it is characterised in that the shape of described loop concave I with 88 °～110 ° angle faces shapes of squib are coincide；Described loop concave II is shaped as annular circular arc concave surface, radian be R1～ R1.5, cambered surface half-angle angle is 15 °～25 °.

7. gas generator shaped device according to claim 1 is it is characterised in that described positioning seat I and positioning seat II It is provided centrally with location hole or locating slot, for positioning squib.