CN206242376U - Automotive bumper mold - Google Patents

Abstract

The utility model discloses a kind of automotive bumper mold, its drip irrigation device is：Including moving platen and solid plate, the side of moving platen and solid plate is equipped with hole for hoist, the hole for hoist of moving platen is provided with dynamic model lifting portion, the hole for hoist of solid plate is provided with cover half lifting portion, cover half lifting portion includes the cover half being fixed on hole for hoist lifting plate, the rope anchor being rotationally connected with cover half lifting plate, and cover half lifting plate is provided with and drives rope anchor one-directional rotation to carry out the ratchet mechanism around fake.It allows mould to keep the abrasion that reduces between mould parts of vertical state when moving moulds；During mould goes to horizontality, ratchet mechanism makes rope anchor one-directional rotation, solid plate gently rises, reduce the impulse force that mould is produced in upset, burn failure is reduced, meanwhile, ratchet mechanism can be prevented effectively in the case where rotatory force is lost during rope anchor is rotated, rope anchor is rotated backward, and reduces potential safety hazard.

Description

Automotive bumper mold

Technical field

The utility model is related to mould applications, more particularly to a kind of automotive bumper mold.

Background technology

Bumper not only has decoration functions, and can absorb and relax foreign impacts power, protects vehicle body；For many years In the past, bumper was based on metal material, but with the development of auto industry and engineering plastics, and present bumper is most Adopt made of plastic.

It is well known that traditional mould is installed in injection machine for convenience, can hoisting ring be set on mould, such as Notification number disclosed in the Chinese patent of CN204566586U shown in a kind of entitled patent of mould, its dynamic model installing plate and cover half Installing plate is provided with numerous hoisting rings, and driving catches on hoisting ring by rope during installation, then driven mold movement, when mould is moved To injection machine mould installion chamber when, manually adjust the position of mould, then mould is slowly placed in correct position；Herein, note Mould was typically dynamic model and cover half before installing in injection machine and is located at cover half upside in vertical display, i.e. dynamic model, this Sample can reduce the friction between mould inside core and die cavity, advantageously ensure that the precision of mould, and in mould loaded on injection When in machine, mould can integrally rotate 90 degree, by the horizontal installation requirement to meet horizontal injection press of dynamic model and cover half；Above-mentioned mould In installation process, the suspension ring of side relevant position will be selected to be fixed when originally lifting by crane, due to rope after mould is sling Be fixed on the side of mould, then mould rise when, can overturn automatically, here, due to automotive bumper mold body compared with Greatly, larger impulse force can be produced in die flip, burn failure is not only easily caused, and there is potential safety hazard.

Utility model content

In view of the shortcomings of the prior art, the purpose of this utility model is that mould is hardly damaged when providing a kind of lifting Automotive bumper mold.

Above-mentioned technical purpose of the present utility model technical scheme is that：A kind of bumper mould The two relative side of tool, including moving platen and solid plate, moving platen and solid plate is equipped with hole for hoist, on the hole for hoist of moving platen Dynamic model lifting portion is provided with, the hole for hoist of solid plate is provided with cover half lifting portion, and cover half lifting portion includes being fixed on hole for hoist Cover half lifting plate, the rope anchor being rotationally connected with cover half lifting plate, cover half lifting plate are provided with driving rope anchor One-directional rotation carrys out the ratchet mechanism around fake.

By above-mentioned technical proposal, dynamic model lifting portion is located at the relative two sides of moving platen, and cover half lifting portion is in solid plate On position it is corresponding with dynamic model lifting portion；During lifting, hung the ambilateral dynamic model of mould is separately fixed at for the rope for lifting In the rope anchor in dress portion and cover half lifting portion；When initial, automotive bumper mold is in vertical laying state, Ye Jidong Template is located at the top of solid plate；Upwards during lifting, the rope in dynamic model lifting portion and cover half lifting portion is in exceptionally straight state, But because the rope in cover half lifting portion is longer than the rope in dynamic model lifting portion, therefore during mould rising, main stress is position Rope in the dynamic model lifting portion of mould top both sides, so as to ensure that mould is lifted by crane vertically；In order to reduce mould in moving process Produced between tool part and damaged, it is necessary to keep mould vertical state to move to always by injection machine to be installed；Now, in injection machine Side needs to make 90 degree of mold rotation that it is the level of state namely moving platen and solid plate are in same level, and position is in left and right Relation；Here, the process of 90 degree of mold rotation is as follows：

Rope anchor in cover half lifting portion can be rotated relative to cover half lifting plate, herein, rotating ratchet mechanism, ratchet machine Structure orders about rope anchor rotation, and rope anchor per revolution just makes rope thereon around a circle, now, cover half lifting portion On rope be equivalent to shorten a bit, it is unidirectional slow rotate rope anchor during, the rope in rope anchor Thereon, rope constantly shortens continuous coiling, so that the rope for shortening makes mould around dynamic model lifting portion for center of rotation is slow Slow-speed is moved, and solid plate is slowly lifted to upper body, makes mould gentle movement, and final 90 degree of rotation is the level of state；It is last again Mould installion is on injection machine；

In said process, when moving moulds, the abrasion for alloing mould to keep vertical state to reduce between mould parts； During mould goes to horizontality, ratchet mechanism makes rope anchor one-directional rotation, and solid plate gently rises, and reduces mould The impulse force produced in upset, reduces burn failure, meanwhile, ratchet mechanism can be effective during rope anchor is rotated Prevent in the case where rotatory force is lost, rope anchor is rotated backward, reduce potential safety hazard.

Preferably, ratchet mechanism includes the ratchet cover plate, the drive division of driving pawl disk rotation, hinge in rope anchor It is connected to and is used to limit the spacing ratchet of ratchet cover plate reversion on cover half lifting plate, is additionally provided with to compress spacing spine on cover half lifting plate Pawl is in the first elastic component on the ratchet cover plate.

By above-mentioned technical proposal, the ratchet cover plate is fixed in rope anchor and rope anchor can be driven to rotate, and is needing When rotating rope anchor, ratchet cover plate one-directional rotation is made by drive division, herein, spacing ratchet is against on the ratchet cover plate all the time, When the ratchet cover plate is rotated forward, spacing ratchet is outwards stirred and is against again on next ratchet with the ratchet on the ratchet cover plate, no It is disconnected to repeat；When the ratchet cover plate has counter-rotational trend, the spacing ratchet and ratchet being against on ratchet cover plate ratchet are mutually stuck, prevent Only ratchet cover plate reversion, so as to effectively realize the one-directional rotation of ratchet mechanism.

Preferably, drive division includes the drive gear being located on the ratchet cover plate, is used to drive driving on cover half lifting plate The driving gear of pinion rotation.

By above-mentioned technical proposal, drive gear and ratchet are fixed as one, and driving gear and drive gear are intermeshed, Rotating driving gear can drive drive gear to rotate, and so as to realize that the ratchet cover plate is rotated, power transmission be can be using gear drive Process is more steady.

Preferably, drive division includes the rotating bar being sheathed in rope anchor, is articulated with rotating bar and is used to drive The first active ratchet that the ratchet cover plate is rotated, is additionally provided with to compress the first active ratchet in the second bullet on the ratchet cover plate in rotating bar Property part.

By above-mentioned technical proposal, rotating bar can relative rope fixture swing back and forth, the oscillation center of rotating bar is rope The axle center of rope fixture, the first active ratchet in rotating bar is against on the ratchet cover plate all the time, when rotating bar is rotated forward, is rotated The ratchet on the first active pawl-and-gearing disk on bar is mutually clamped, and stuck, can be driven during rotating bar so as to be rotated forward The ratchet cover plate is rotated towards the positive direction, and when rotating bar is rotated to opposite direction, the first active ratchet is outwards stirred by the ratchet on the ratchet cover plate, So as to the ratchet cover plate will not concomitant rotation, rotating bar recover origin-location, so, swing back and forth rotating bar repeatedly, can drive spine Wheel disc one-directional rotation, equivalent to lever, need to only carry out small range swing can just drive the ratchet cover plate to rotate to this process rotating bar, more Laborsaving convenience.

Preferably, ratchet mechanism includes the ratchet cover plate being located in rope anchor, is articulated with cover half lifting plate and is located at The swing arm of ratchet cover plate side, be respectively arranged on swing arm two ends and to the driven ratchet cover plate rotate two second active spine Pawl, is additionally provided with to compress respectively the second active ratchet in the 3rd elastic component on the ratchet cover plate on swing arm.

By above-mentioned technical proposal, the ratchet cover plate is fixed in rope anchor and rope anchor can be driven to rotate, and swings The jointed shaft of bar and cover half lifting plate is located between two second active ratchets, when needing to rotate rope anchor, is swung Swing arm, when swing arm is swung to the left, the ratchet intermeshing on the second active pawl-and-gearing disk of swing arm left end is simultaneously The ratchet cover plate is promoted to rotate, the second active ratchet of right-hand member is then drawn back with respect to the ratchet cover plate and nibbled with the next ratchet on the ratchet cover plate Close；Then swing arm is swung to the right, and the second active ratchet of swing arm right-hand member promotes the ratchet cover plate to be rotated further to same direction, Now the second active ratchet of left end then equally draw back and and the ratchet cover plate on next ratchet engagement, so repeatedly swing put Lever, the second active ratchet at swing arm two ends just can alternately promote the ratchet cover plate to be rotated to a direction, improve rope coiling Efficiency, operate it is simpler；Herein, when the ratchet cover plate has the trend of reversion, two the second common stress of active ratchet and and Ratchet on the ratchet cover plate is mutually stuck, and swing arm no longer rotates in stuck state, effectively prevents the ratchet cover plate from inverting.

Preferably, the middle part of swing arm is located at jointed shaft the handlebar for being provided with to drive swing arm to swing.

By above-mentioned technical proposal, handlebar pulls handlebar to the left equivalent to an arm of force, is easy to order about a swing arm left side End acts on the ratchet cover plate, and handlebar is pulled to the right, is easy to trend swing arm right-hand member to act on the ratchet cover plate；Here, handlebar is located at The middle part of swing arm, makes the dynamics and amplitude of fluctuation of left and right force uniform, more saves strength, improves efficiency.

Preferably, fixed seat is threaded with cover half lifting plate, rope anchor is rotationally connected with fixed seat.

By above-mentioned technical proposal, rope anchor is easily worn and torn or is damaged in use, therefore needs are changed, when Rope anchor is directly rotationally connected with when on cover half lifting plate, and changing rope anchor needs to pull down whole lifting plate, restricts Rope fixture is difficult to change, and now increased fixed seat, and rope anchor is connected to cover half and lifts plate by fixed seat, when rope is solid When determining part damage, directly fixed seat can be screwed off from cover half lifting plate, be changed, it is easy to operate, efficient.

Preferably, dynamic model lifting portion includes that the dynamic model being fixed on moving platen by hole for hoist is lifted plate, is rotationally connected with Rope anchor on dynamic model lifting plate.

By above-mentioned technical proposal, rope anchor is connected on dynamic model lifting plate, if then passing through dynamic model lifting plate Dry hole for hoist is fixed on moving platen, when rope anchor and dynamic model lifting plate stress, numerous common stress of hole for hoist, to hanging The damage for filling hole is smaller, and rope anchor directly is threadedly connected into single hole for hoist, single to hang during rope anchor stress Whole power are born in dress hole, and stress is more concentrated, and are easily caused hole for hoist damage.

Preferably, dynamic model lifting plate and cover half lifting plate are provided with and are used to for both to carry out sealed locking part.

By above-mentioned technical proposal, dynamic model lifting plate and cover half lifting plate are mutually fixed with moving platen and solid plate respectively, are led to Cross that dynamic model is lifted plate by locking part and cover half lifting plate locks together and can realize the locked mode of mould, can be with so in carrying mould Ensure mold locking stabilization, after installing a mold on injection machine, cover half lifting plate and dynamic model lifting plate can be torn open Unload, reduce mould and integrally take up room, interference is caused when can prevent clamping mechanism to mold work.

Preferably, locking part includes the buckling groove being located on dynamic model lifting plate, is articulated with cover half lifting plate and can fasten Clamping block in buckling groove, buckling groove includes interconnected vertical slot and T-shaped translot, and clamping block includes matching with T-shaped translot Close T-shaped end, be articulated with cover half lifting plate on hinged end, hinged end can along its jointed shaft slide axially so that T-shaped end from Slipped into vertical slot and engaged in T-shaped translot.

By above-mentioned technical proposal, rotating clamping block can be fastened in buckling groove clamping block, then laterally urge card In connecing block and being snapped in T-shaped translot, easy to operate, lock sealed between dynamic model lifting plate and cover half lifting plate so as to realize Close reliable.

Brief description of the drawings

Fig. 1 is the structural representation of embodiment one；

Fig. 2 is A portions enlarged drawing in Fig. 1；

Fig. 3 is the partial sectional view at dynamic model lifting plate in embodiment one and cover half lifting plate；

Fig. 4 is B portions enlarged drawing in Fig. 1；

Fig. 5 is the structural representation of embodiment two；

Fig. 6 is C portions enlarged drawing in Fig. 5；

Fig. 7 is the structural representation of embodiment three；

Fig. 8 is D portions enlarged drawing in Fig. 7.

Reference：1st, moving platen；2nd, solid plate；3rd, hole for hoist；4th, dynamic model lifting portion；41st, dynamic model lifting plate；5th, cover half Lifting portion；51st, cover half lifting plate；52nd, rope anchor；53rd, fixed seat；6th, ratchet mechanism；61st, the ratchet cover plate；62nd, drive division； 621st, drive gear；622nd, driving gear；623rd, rotating bar；624th, the first active ratchet；63rd, spacing ratchet；64th, swing arm； 641st, handlebar；65th, the second active ratchet；7th, locking part；71st, buckling groove；711st, vertical slot；712nd, T-shaped translot；72nd, clamping block； 721st, T-shaped end；722nd, hinged end；8th, hand handle；91st, the first elastic component；92nd, the second elastic component；93rd, the 3rd elastic component.

Specific embodiment

The utility model is described in further detail below in conjunction with accompanying drawing.

Embodiment one, a kind of automotive bumper mold：

Automotive bumper mold as shown in accompanying drawing 1 and 3, including moving platen 1 and solid plate 2, moving platen 1 and solid plate 2 Two relative side be equipped with hole for hoist 3, the hole for hoist 3 of moving platen 1 is provided with dynamic model lifting portion 4, the hole for hoist 3 of solid plate 2 It is provided with cover half lifting portion 5.Wherein, dynamic model lifting portion 4 includes that the dynamic model being fixed on moving platen 1 by hole for hoist 3 lifts plate 41st, it is rotationally connected with the rope anchor 52 on dynamic model lifting plate 41；Cover half lifting portion 5 includes being fixed on determining on hole for hoist 3 Mould lifting plate 51, the rope anchor 52 being rotationally connected with cover half lifting plate 51；Herein, dynamic model lifting plate 41 and cover half lifting Plate 51 is fixed on hole for hoist 3 by the screw being distributed on its corner, and dynamic model lifting plate 41 and cover half lifting plate 51 On be threaded with fixed seat 53, rope anchor 52 is rotationally connected with fixed seat 53, facilitates rope anchor 52 hanging Dismounting on dress plate.

Referring to accompanying drawing 1 and 4, cover half lifting plate 51 is provided with and drives the one-directional rotation of rope anchor 52 to carry out the spine around fake Wheel mechanism 6.Wherein, ratchet mechanism 6 includes the ratchet cover plate 61, drive division 62, spacing ratchet 63, the ratchet cover plate 61 and cover half lifting plate 51 On rope anchor 52 be integrated；Drive division 62 lifts plate by the drive gear 621 on the ratchet cover plate 61 and located at cover half Driving gear 622 on 51 is constituted；Driving gear 622 is articulated with cover half lifting plate 51, and driving gear 622 is provided with is easy to it The hand of own rotation is 8；Spacing ratchet 63 is articulated with cover half lifting plate 51, is additionally provided with cover half lifting plate 51 and is compressed limit all the time In the first elastic component 91 on the ratchet cover plate 61, the first elastic component 91 here is spring leaf to position ratchet 63.

Referring to attached Fig. 1 and 2, dynamic model lifting plate 41 and cover half lifting plate 51 be provided be used to carry out both it is sealed sealed Portion 7, wherein, locking part 7 includes the buckling groove 71 being located on dynamic model lifting plate 41, is articulated with cover half lifting plate 51 and can fasten Clamping block 72 in buckling groove 71, buckling groove 71 includes interconnected vertical slot 711 and T-shaped translot 712, and clamping block 72 includes The T-shaped end 721 being engaged with T-shaped translot 712, the hinged end 722 being articulated with cover half lifting plate 51, hinged end 722 can be along it Sliding axially so that T-shaped end 721 is slipped into from vertical slot 711 is engaged in T-shaped translot 712 for jointed shaft, rotates clamping block 72 Clamping block 72 can be fastened in buckling groove 71, then laterally urged again during clamping block 72 can be snapped in T-shaped translot 712, it is real It is sealed between existing dynamic model lifting plate 41 and cover half lifting plate 51.

The use process of embodiment one is as follows：

When being ready for lifting, clamping block 72 is rotated first towards dynamic model lifting plate 41, make the T-shaped end 721 of clamping block 72 It is transferred in vertical slot 711, clamping block 72 is promoted then towards T-shaped translot 712, clamping block 72 is embedded in T-shaped translot 712, makes Template 1 and solid plate 2 are sealed；

Then, the ambilateral dynamic model lifting portion 4 of mould and cover half lifting portion 5 will be separately fixed at for the rope for lifting In rope anchor 52, now, automotive bumper mold is in vertical laying state, namely moving platen 1 is located at the upper of solid plate 2 Side, during lifting, mould is lifted by crane vertically, and driving will be waited to install by mould vertical shift to injection machine；

Then, the hand on driving gear 622 is caught to rotate driving gear 622, driving gear 622 and drive gear 621 8 So as to drive rope anchor 52 to rotate, rope anchor 52 constantly rotates and around fake, herein, spacing ratchet 63 is supported for engagement On the ratchet of the ratchet cover plate 61, when the ratchet cover plate 61 has counter-rotational trend and ratchet is mutually stuck, prevent the ratchet cover plate 61 from inverting, So as to prevent rope direction from deviating from, so the rope in cover half lifting portion 5 constantly shortens so that the one end of solid plate 2 slowly to On lift, mould is rotated around dynamic model lifting portion 4, slowly smoothly goes to 90 degree, namely mould is in horizontal state；

Finally, mould is put into the installation cavity of injection machine using driving and is installed.

Embodiment two, a kind of automotive bumper mold：

Embodiment two and the difference that the difference of embodiment one is drive division 62.

As depicted in figures 5 and 6, the drive division 62 of embodiment two include being sheathed on rotating bar 623 in rope anchor 52, The the first active ratchet 624 for being articulated with rotating bar 623 and being rotated to driving pawl disk 61, rotating bar 623 and the ratchet cover plate 61 Be coaxially disposed, and rotating bar 623 can relative rope fixture 52 rotate, be additionally provided with to compress first in rotating bar 623 actively In the second elastic component 92 on the ratchet cover plate 61, the second elastic component 92 here is also spring leaf to ratchet 624.

Process in embodiment two around fake is as follows：

Rotating bar 623 is caught, the rotating bar that swings back and forth 623, when rotating bar 623 is rotated counterclockwise, the first active ratchet Ratchet on 624 mesh ratchet gear disks 61, promotes the ratchet cover plate 61 to rotate counterclockwise, so that rope anchor 52 is around fake；Then Rotating bar 623 is rotated clockwise, and now the relative ratchet cover plate 61 of the first active ratchet 624 constantly retracts, and rotating bar 623 recovers former Position, spacing ratchet 63 and the ratchet cover plate 61 are mutually stuck here, prevent rope anchor 52 from inverting；Swing rotating bar repeatedly like this 623, rope anchor 52 constantly rotates and the rope on fake, cover half lifting portion 5 constantly shortens, so that solid plate 2 One end is slowly lifted up, and mould is rotated around dynamic model lifting portion 4, slowly smoothly goes to 90 degree, namely mould is in tap-like State.

Embodiment three, a kind of automotive bumper mold：

Embodiment three and the difference that the difference of embodiment one is ratchet mechanism 6.

As depicted in figures 7 and 8, the ratchet mechanism 6 of embodiment three includes the ratchet cover plate 61, hinge in rope anchor 52 It is connected on cover half lifting plate 51 and the swing arm 64 positioned at the side of the ratchet cover plate 61, is respectively arranged on the two ends of swing arm 64 and is used to replace The two second active ratchets 65 that driving pawl disk 61 is rotated, the ratchet cover plate 61 is fixed in rope anchor 52 and rope can be driven to consolidate Determine part 52 to rotate, the jointed shaft of swing arm 64 and cover half lifting plate 51 is located between two second active ratchets 65；Herein, swing arm It is additionally provided with to compress respectively two second active ratchets 65 on 64 in the 3rd elastic component 93 on the ratchet cover plate 61, the 3rd elastic component 93 Also it is spring leaf.Wherein, the middle part of swing arm 64 is located at jointed shaft the handlebar for being provided with to drive swing arm 64 to swing 641, handlebar 641 and swing arm 64 are mutually perpendicular to, and handlebar 641 pulls handlebar 641, just to the left equivalent to an arm of force The ratchet cover plate 61 is acted in the left end of swing arm 64 is ordered about, handlebar 641 is pulled to the right, be easy to the right-hand member of trend swing arm 64 to act on The ratchet cover plate 61.

Process in embodiment three around fake is as follows：

Handlebar 641 is caught, swing back and forth handlebar 641, when handlebar 641 is counterclockwise rotated, swing arm Ratchet on the mesh ratchet gear disk 61 of second active ratchet 65 of 64 right-hand members, promotes the ratchet cover plate 61 to rotate counterclockwise, now, swing arm The ratchet of the relative ratchet cover plate 61 of the second active ratchet 65 of 64 left ends retracts；When handlebar 641 is rotated toward the clockwise direction When, the ratchet on the mesh ratchet gear disk 61 of the second active ratchet 65 of the left end of swing arm 64 promotes same counterclockwise turn of the ratchet cover plate 61 Dynamic, now, the ratchet of the relative ratchet cover plate 61 of the second active ratchet 65 of the right-hand member of swing arm 64 retracts, no matter it is clockwise or Handlebar 641 is rotated counterclockwise, the ratchet cover plate 61 can be rotated counterclockwise, so that rope anchor 52 constantly rotates and around serving Rope, the rope in cover half lifting portion 5 constantly shortens, so that the one end of solid plate 2 is slowly lifted up, mould is around dynamic model lifting portion 4 rotate, and slowly smoothly go to 90 degree, namely mould is in horizontal state.

The above is only exemplary embodiment of the present utility model, not for limitation protection model of the present utility model Enclose, protection domain of the present utility model is determined by appended claim.

Claims (10)

1. the two-phase of a kind of automotive bumper mold, including moving platen (1) and solid plate (2), moving platen (1) and solid plate (2) Hole for hoist (3) is equipped with to side, the hole for hoist (3) of moving platen (1) is provided with dynamic model lifting portion (4), the lifting of solid plate (2) Hole (3) is provided with cover half lifting portion (5), it is characterized in that：Hung including the cover half being fixed on hole for hoist (3) in cover half lifting portion (5) Dress plate (51), the rope anchor (52) being rotationally connected with cover half lifting plate (51), cover half lift plate (51) and are provided with driving Rope anchor (52) one-directional rotation carrys out the ratchet mechanism (6) around fake.

2. automotive bumper mold according to claim 1, it is characterized in that：Ratchet mechanism (6) located at rope including fixing Drive division (62) that the ratchet cover plate (61) on part (52), driving pawl disk (61) are rotated, it is articulated with cover half and lifts and used on plate (51) To limit the spacing ratchet (63) of the ratchet cover plate (61) reversion, cover half lifts and is additionally provided with to compress spacing ratchet (63) on plate (51) In the first elastic component (91) on the ratchet cover plate (61).

3. automotive bumper mold according to claim 2, it is characterized in that：Drive division (62) is including located at the ratchet cover plate (61) On drive gear (621), the driving gear for being used to drive drive gear (621) to rotate on plate (51) is lifted located at cover half (622)。

4. automotive bumper mold according to claim 2, it is characterized in that：Drive division (62) is fixed including being sheathed on rope Rotating bar (623) on part (52), the first active spine for being articulated with rotating bar (623) and being rotated to driving pawl disk (61) Pawl (624), is additionally provided with to compress the first active ratchet (624) in the second elasticity on the ratchet cover plate (61) in rotating bar (623) Part (92).

5. automotive bumper mold according to claim 1, it is characterized in that：Ratchet mechanism (6) located at rope including fixing The ratchet cover plate (61) on part (52), be articulated with cover half lift on plate (51) and the swing arm (64) positioned at the ratchet cover plate (61) side, It is respectively arranged on swing arm (64) two ends and the two second active ratchets (65) rotated to the driven ratchet cover plate (61), swing arm (64) it is additionally provided with to compress respectively the second active ratchet (65) in the 3rd elastic component (93) on the ratchet cover plate (61).

6. automotive bumper mold according to claim 5, it is characterized in that：The middle part of swing arm (64) is located at jointed shaft It is provided with the handlebar (641) for driving swing arm (64) to swing.

7. automotive bumper mold according to claim 1, it is characterized in that：Cover half is lifted and is threaded with plate (51) admittedly Reservation (53), rope anchor (52) is rotationally connected with fixed seat (53).

8. automotive bumper mold according to claim 1, it is characterized in that：Dynamic model lifting portion (4) is including by hole for hoist (3) dynamic model being fixed on moving platen (1) lifts plate (41), is rotationally connected with the rope anchor that dynamic model is lifted on plate (41) (52)。

9. automotive bumper mold according to claim 8, it is characterized in that：Dynamic model lifts plate (41) and cover half lifting plate (51) it is provided with and is used to for both to carry out sealed locking part (7).

10. automotive bumper mold according to claim 9, it is characterized in that：Locking part (7) located at dynamic model including lifting plate (41) buckling groove (71) on, the clamping block (72) that cover half is lifted on plate (51) and can be fastened in buckling groove (71) is articulated with, Buckling groove (71) includes interconnected vertical slot (711) and T-shaped translot (712), clamping block (72) including with T-shaped translot (712) The T-shaped end (721) being engaged, the hinged end (722) being articulated with cover half lifting plate (51), hinged end (722) can be hinged along it Axle slides axially so that T-shaped end (721) are slipped into from vertical slot (711) is engaged in T-shaped translot (712).