CN107755571A - A kind of lower ejecting mechanism - Google Patents
A kind of lower ejecting mechanism Download PDFInfo
- Publication number
- CN107755571A CN107755571A CN201610694805.XA CN201610694805A CN107755571A CN 107755571 A CN107755571 A CN 107755571A CN 201610694805 A CN201610694805 A CN 201610694805A CN 107755571 A CN107755571 A CN 107755571A
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- China
- Prior art keywords
- pull bar
- rod
- ejecting mechanism
- cam
- swing rod
- Prior art date
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- 230000007246 mechanism Effects 0.000 title claims abstract description 35
- 230000000694 effects Effects 0.000 claims abstract description 10
- 230000009471 action Effects 0.000 claims description 19
- 230000001360 synchronised effect Effects 0.000 claims description 8
- 238000005096 rolling process Methods 0.000 claims description 4
- 238000011084 recovery Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 11
- 239000003921 oil Substances 0.000 description 9
- 230000008569 process Effects 0.000 description 7
- 230000008859 change Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000010720 hydraulic oil Substances 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000005191 phase separation Methods 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D45/00—Ejecting or stripping-off devices arranged in machines or tools dealt with in this subclass
- B21D45/02—Ejecting devices
Abstract
The present invention provides a kind of lower ejecting mechanism, including the buffer unit on the pull bar, and the buffer unit applies the cushion effect opposite with the pull bar direction of motion to the pull bar.In the prior art, resetting means is frequently with reset cylinder, after workpiece is ejected, resetting means starts, resetting means often drives drive link to give cam one huge impulsive force, causes cam to damage only with a single reset cylinder, the meeting of reset cylinder in the prior art.In lower ejecting mechanism provided by the invention, include a buffer unit, in pull bar Recovery Process, buffer unit can give pull bar one power opposite with the pull bar direction of motion, so as to effectively alleviate impulsive force of the drive link to cam, increase the service life of cam.
Description
Technical field
The present invention relates to part processing technique field, and in particular to a kind of lower ejecting mechanism.
Background technology
Ejecting mechanism is called mould emptier, and during material is processed, the mold cavity for holding workpiece is often recessed and set
Put below processing platform, after process finishing, ejected from mold cavity workpiece by ejecting mechanism, facilitate manipulator or
Worker takes.
Ejecting mechanism of the prior art is broadly divided into two classes.The first kind is hydraulic pressure ejecting mechanism, documents
CN101758645B discloses a kind of jack-up rotating device for jacking cylinder of hydraulic press, including：Workbench, bench top into
Type is fluted, and inside grooves are provided with the supporting plate for placing workpiece.Table core forms passage, in passage from top to bottom
Bearing block, bearing and piston rod are placed with, when needing to eject the workpiece on supporting plate from groove, piston rod starts, and drives
Bearing block and bearing are moved upwards, and supporting plate is ejected and leaves bench top by bearing block from groove, dynamic so as to complete ejection
Make.
But, it is necessary to fill hydraulic oil in piston before during using hydraulic pressure ejecting mechanism, meanwhile, hydraulic top comes from
Body belongs to flexible process, and the most important problem of flexible process is that reaction is slow and speed is slow, can influence the effect of whole ejection process
Rate.
Meanwhile another kind of ejecting structure is disclosed in the prior art：The independent resetting structure of cylinder.In the structure shown here, cam
Periodic circular-rotation is carried out, while " one " font lever is provided with the structure, lever one end is fixed to form fixed part, another
End is connected to form movable part with pull bar, and cam often rotates one week, can all impact the centre of " one " font lever once, thick stick
The movable part of bar can drive pull bar to move downward, and the swing rod trailing arm being connected with pull bar occurs and the reverse fortune of the pull bar direction of motion
It is dynamic, drive push rod to eject workpiece.In the reseting procedure after workpiece is ejected, reset cylinder will be sent out with driven fork trailing arm
It is raw with motion in opposite direction during ejection, so as to by swing rod trailing arm return.
The reaction of the independent resetting structure of cylinder is rapider, and production efficiency is also higher.But in reseting procedure, reset gas
Cylinder has larger impulse inertia, and driving " one " font lever, fiercely cam is hit in extruding, and the axle center of cam is axial with gear
It is fixed, cause " one " font lever to produce larger shearing force to gear shaft, cause gear shaft to deform, shorten gear shaft
Service life.
The content of the invention
Therefore, the technical problem to be solved in the present invention be to overcome in the prior art the independent resetting structure of cylinder resetting
Cheng Rongyi is impacted on cam and gear shaft, is influenceed the defects of the two service life.
A kind of lower ejecting mechanism, including：Fuselage；Cam, rotated around gear shaft；Drive link, by the actuated by cams, tool
There are fixed part and movable part, the movable part is under the drive of the cam around the fixed part reciprocally swinging；Pull bar, one end
It is rotatablely connected with the movable part；Ejection assembly, one end and the other end of the pull bar are rotatablely connected, under pull bar drive
Ejection action is performed so that workpiece to be ejected, the other end is connected with resetting means, execution and institute under resetting means drive
State ejection and act opposite homing action to drive the pull bar and drive link to reset；Also include the buffering on the pull bar
Device, the buffer unit apply the cushion effect opposite with the pull bar direction of motion to the pull bar.
The buffer unit is spring assembly, and the spring assembly applies and the pull bar direction of motion phase to the pull bar
Anti- elastic buffer power.
The spring assembly is sheathed on the spring assembly outside the pull bar, and the machine is fixed in described spring assembly one end
Body, the other end are fixed on the pull bar.
The spring assembly is arranged between the body of rod of the pull bar so that the body of rod to be separated into separate upper boom
Body and the lower body of rod, the spring assembly are connected with the upper body of rod and the lower body of rod respectively.
The buffer unit be arranged between the body of rod of the pull bar it is separate upper so that the body of rod to be separated into
The block rubber of the body of rod and the lower body of rod, the block rubber are fixedly connected with the upper body of rod and the lower body of rod respectively.
The drive link is " L " type swing rod, including the vertical arm and transverse arm being connected, the free end of the vertical arm with it is described convex
Wheel contradicts all the time, and the free end of the transverse arm is the fixed part being rotatably mounted to by bearing pin on the fuselage, institute
Vertical arm is stated to be flexibly connected with the connecting portion of the transverse arm with described one end of the pull bar.
The vertical arm is provided with roller, the roller and the cam with the free end that the cam contradicts all the time
Outer rim be in rolling contact.
The ejection assembly includes：Lower ejection axle；Rotation section, can be around the lower ejection axle reciprocating rotation, one end and institute
The other end for stating pull bar is connected；Push rod, it is capable of the top of the reciprocating other end located at the rotation section, is used for
Eject workpiece.
The rotation section includes：Draft link, one end are connected with the other end of the pull bar, and can be in the pull bar
Under drive, the lower ejection axle is driven to rotate；Swing rod trailing arm, it is arranged side by side with the draft link, and it is same with the lower ejection axle
Step rotates；Hydraulic pressure swing rod, it is set on the lower ejection axle, the top of the hydraulic pressure swing rod is in contact with the push rod, described
Hydraulic pressure swing rod can rotate forward under the drive of the swing rod trailing arm, drive the push rod to transport upwards around the lower ejection axle
It is dynamic.
The resetting means includes：Reset cylinder, it is fixedly installed on the fuselage, there is reciprocating piston；It is multiple
Position swing rod, is driven by the piston, is arranged side by side with the hydraulic pressure swing rod, and the reset swing rod can be in the drive of the piston
Under the lower ejection axle rotated with rotating forward negative sense in opposite direction.
The rotation section also includes high guarantor's oil cylinder, and described high oil cylinder one end of protecting is fixed, and the other end is connected to the hydraulic pressure pendulum
The other end that bar is in contact with the push rod, when the lower ejection axle carries out negative sense rotation, high guarantor's oil cylinder can make described
Hydraulic pressure swing rod stops a special time in original opening position.
Key connection is used between the swing rod trailing arm and the lower ejection axle.
Technical solution of the present invention, have the following advantages that：
1. the present invention provides a kind of lower ejecting mechanism, including：Fuselage；Cam, rotated around gear shaft；Drive link, by institute
Actuated by cams is stated, there is fixed part and movable part, the movable part is reciprocal around the fixed part under the drive of the cam
Swing；Pull bar, one end are rotatablely connected with the movable part；Ejection assembly, one end and the other end of the pull bar are rotatablely connected,
The pull bar drives lower execution ejection action, and so that workpiece to be ejected, the other end is connected with resetting means, in the resetting means
The lower execution homing action opposite with ejection action is driven to drive the pull bar and drive link to reset；Also include being located at institute
The buffer unit on pull bar is stated, the buffer unit applies the cushion effect opposite with the pull bar direction of motion to the pull bar.
In the prior art, resetting means is frequently with reset cylinder, and after workpiece is ejected, resetting means starts, existing skill
Resetting means often drives drive link huge to one, cam only with a single reset cylinder, the meeting of reset cylinder in art
Impulsive force, cause cam to damage.
In lower ejecting mechanism provided by the invention, it is connected to each other between each component, rather than in conventional hydraulic ejection system
Need filling hydraulic oil more efficient as transition, the technical scheme course of work.Meanwhile lower top provided by the invention
Go out in mechanism, include a buffer unit, in pull bar Recovery Process, buffer unit can give pull bar one and pull bar direction of motion phase
Anti- power, so as to effectively alleviate impulsive force of the drive link to cam, increase the service life of cam.
2. the present invention provides a kind of lower ejecting mechanism, the buffer unit is spring assembly, and the spring assembly is to described
Pull bar applies the elastic buffer power opposite with the pull bar direction of motion.
Spring assembly and it can stretch and can shrink, when pull bar carries out ejection action or reply acts, groups of springs
Part can work.
3. the present invention provides a kind of lower ejecting mechanism, the spring assembly is arranged between the body of rod of the pull bar with by institute
State the body of rod and be separated into the separate upper body of rod and the lower body of rod, the spring assembly connects with the upper body of rod and the lower body of rod respectively
Connect.
In Recovery Process, the lower body of rod moves upwards under the drive of resetting means, because spring assembly is folded in lower beam
Between body and the upper body of rod, after the position between the body of rod and the upper body of rod reduces instantly, now spring assembly will compress and be subtracted to absorb
Small distance.
4. the present invention provides a kind of lower ejecting mechanism, the buffer unit is to be arranged between the body of rod of the pull bar to incite somebody to action
The body of rod is separated into the block rubber of the separate upper body of rod and the lower body of rod, the block rubber respectively with the upper body of rod and under
The body of rod is fixedly connected.
Block rubber itself has good deformability, and when pull bar carries out homing action, block rubber can pass through itself
Cushioning effect is played in deformation.
5. the present invention provides a kind of lower ejecting mechanism, the drive link is " L " type swing rod, including the vertical arm and horizontal stroke being connected
Arm, the free end of the vertical arm contradict all the time with the cam, and the free end of the transverse arm is to be rotatably fixed by bearing pin
The fixed part on the fuselage, the vertical arm and the connecting portion of the transverse arm and described one end activity of the pull bar
Connection.
By the cooperation between vertical arm and transverse arm, the rotation of the cam can be effectively transferred to pull bar, really
Protect being synchronized with the movement between cam and pull bar.
6. the present invention provides a kind of lower ejecting mechanism, the free end contradicted all the time with the cam the peace of the vertical arm
Equipped with roller, the outer rim of the roller and the cam is in rolling contact.
By roller, roller can drive roller to rotate in rotation process, effectively reduce cam and contacted with drive link
During frictional force, be advantageous to the stability being driven between cam and drive link.
Brief description of the drawings
, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical scheme of the prior art
The required accompanying drawing used is briefly described in embodiment or description of the prior art, it should be apparent that, in describing below
Accompanying drawing is some embodiments of the present invention, for those of ordinary skill in the art, before creative work is not paid
Put, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of the lower ejecting mechanism provided by the invention；
Fig. 2 is that rotation section described in the lower ejecting mechanism provided by the invention and the assembling of the reset swing rod are illustrated
Figure；
Description of reference numerals：
1- fuselages；2- cams；3- gear shafts；4- drive links；41- vertical arm；42- transverse arms；43- bearing pins；5- pull bars；6- springs
Component；7- rollers；Axle is ejected under 8-；9- push rods；10- draft links；11- swing rod trailing arms；12- hydraulic pressure swing rods；13- reset cylinders；
14- resets swing rod；15- is high to protect oil cylinder.
Embodiment
Technical scheme is clearly and completely described below in conjunction with accompanying drawing, it is clear that described implementation
Example is part of the embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, ordinary skill
The every other embodiment that personnel are obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
In the description of the invention, it is necessary to explanation, term " " center ", " on ", " under ", "left", "right", " vertical ",
The orientation or position relationship of the instruction such as " level ", " interior ", " outer " be based on orientation shown in the drawings or position relationship, merely to
Be easy to the description present invention and simplify description, rather than instruction or imply signified device or element must have specific orientation,
With specific azimuth configuration and operation, therefore it is not considered as limiting the invention.In addition, term " first ", " second ",
" the 3rd " is only used for describing purpose, and it is not intended that instruction or hint relative importance.
In the description of the invention, it is necessary to illustrate, unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；Can
To be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected by intermediary, Ke Yishi
The connection of two element internals.For the ordinary skill in the art, with concrete condition above-mentioned term can be understood at this
Concrete meaning in invention.
As long as in addition, technical characteristic involved in invention described below different embodiments non-structure each other
It is be combined with each other into conflict can.
Embodiment 1
The present embodiment provides a kind of lower ejecting mechanism, including：Fuselage 1；Cam 2, rotated around gear shaft 3；Drive link 4,
Driven by the cam 2, there is fixed part and movable part, the movable part is under the drive of the cam 2 around the fixation
Portion's reciprocally swinging；Pull bar 5, one end are rotatablely connected with the movable part；Ejection assembly, one end and the other end of the pull bar 5 turn
Dynamic connection, ejection action is performed under the pull bar 5 drive so that workpiece to be ejected, the other end is connected with resetting means, in institute
Stating resetting means drives the lower execution homing action opposite with ejection action to drive the pull bar 5 and drive link 4 to reset；
Also include the buffer unit on the pull bar 5, the buffer unit applies and the side of moving of pull bar 5 to the pull bar 5
To opposite cushion effect.
In the prior art, resetting means is frequently with reset cylinder 13, and after workpiece is ejected, resetting means starts, existing
Resetting means often drives drive link 4 to give cam 2 only with a single reset cylinder 13, the meeting of reset cylinder 13 in technology
One huge impulsive force, causes cam 2 to damage.
In lower ejecting mechanism provided by the invention, include a buffer unit, in the Recovery Process of pull bar 5, buffer unit
The meeting power opposite with the direction of motion of pull bar 5 to pull bar 5 one, so as to effectively alleviate impulsive force of the drive link 4 to cam 2, increase
The service life of cam 2.
In the present embodiment, the buffer unit is spring assembly 6, the spring assembly 6 to the pull bar 5 apply with it is described
The opposite elastic buffer power of the direction of motion of pull bar 5.The spring assembly 6 is sheathed on the spring assembly 6 outside the pull bar 5, institute
State the one end of spring assembly 6 and be fixed on the fuselage 1, the other end is fixed on the pull bar 5.
Specifically, the spring assembly 6 can be both set on the pull bar 5, can be arranged on the outside of pull bar 5 again,
The spring assembly 6 is equally that one end is fixed on the fuselage 1, and the other end is fixed on the body of rod of pull bar 5.
Specifically, as shown in figure 1, when performing homing action, the pull bar 5 moves upwards, and now spring assembly 6 is upper
End keeps fixing, and lower end and the pull bar 5 of spring assembly 6 are synchronized with the movement, and the relative motion between the upper and lower ends of spring assembly 6 causes
Spring assembly 6 compresses, and so as to produce the pressure for hindering pull bar 5 to continue up, and then effectively alleviates due to pull bar 5
Fierce motion upwards drives drive link 4, makes drive link 4 to being impacted caused by cam 2.
As modification, the spring assembly 6 that the present embodiment provides is arranged between the body of rod of the pull bar 5 with by described in
The body of rod is separated into the separate upper body of rod and the lower body of rod, and the spring assembly 6 is connected with the upper body of rod and the lower body of rod respectively.
When performing homing action, the lower body of rod moves upwards under the drive of resetting means, because spring assembly 6 is folded in
Between the lower body of rod and the upper body of rod, after the position between the body of rod and the upper body of rod reduces instantly, now spring assembly 6 absorbs compressing
The distance reduced.
Specifically, the spring assembly 6 can use stage clip.
As deformation, the buffer unit is to be arranged between the body of rod of the pull bar 5 so that the body of rod is separated into phase
Mutually the block rubber of the independent upper body of rod and the lower body of rod, the block rubber are fixedly connected with the upper body of rod and the lower body of rod respectively.
In the present embodiment, the drive link 4 is " L " type swing rod, including the vertical arm 41 and transverse arm 42 being connected, the vertical arm
41 free end contradicts all the time with the cam 2, and the free end of the transverse arm 42 is is rotatably mounted to institute by bearing pin 43
The fixed part on fuselage 1 is stated, the vertical arm 41 is lived with the connecting portion of the transverse arm 42 and described one end of the pull bar 5
Dynamic connection.
By the cooperation between vertical arm 41 and transverse arm 42, the rotation of the cam 2 can be effectively transferred to draw
Bar 5, it is ensured that being synchronized with the movement between cam 2 and pull bar 5.
Meanwhile the free end contradicted all the time with the cam 2 of the vertical arm 41 is provided with roller 7, the roller 7
It is in rolling contact with the outer rim of the cam 2.
By roller 7, roller 7 can drive roller 7 to rotate in rotation process, effectively reduce cam 2 and drive link 4
Frictional force in contact process, be advantageous to the stability being driven between cam 2 and drive link 4.
In the present embodiment, the ejection assembly includes：Lower ejection axle 8；Rotation section, can be reciprocal around the lower ejection axle 8
Rotate, one end is connected with the other end of the pull bar 5；Push rod 9, can be reciprocating located at the another of the rotation section
The top of one end, for ejecting workpiece.
The rotation section includes：Draft link 10, one end are connected with the other end of the pull bar 5, and can be in the drawing
Under the drive of bar 5, the lower ejection axle 8 is driven to rotate；Swing rod trailing arm 11, be arranged side by side with the draft link 10, and with it is described
The lower ejection synchronous axial system of axle 8；Hydraulic pressure swing rod 12, be set in it is described it is lower ejection axle 8 on, the top of the hydraulic pressure swing rod 12 with it is described
Push rod 9 is in contact, and the hydraulic pressure swing rod 12 can be under the drive of the swing rod trailing arm 11, around lower positive turn of the ejection axle 8
It is dynamic, drive the push rod 9 to move upwards.
Meanwhile use key connection between the swing rod trailing arm 11 and the lower ejection axle 8.
Specific ejection action is as described below：The cam 2 is rotated, and drive link 4, the band of drive link 4 are extruded when cam 2 rotates
Dynamic pull bar 5 moves down, and pull bar 5 drives draft link 10 to rotate clockwise, and is connected between draft link 10 and lower ejection axle 8 by key
Connect, it is ensured that being synchronized with the movement therebetween, same to eject key connection between axle 8 and swing rod trailing arm 11 at present, swing rod trailing arm 11 can exist
Rotated under the drive of lower ejection axle 8, and hydraulic pressure swing rod 12 is jacked up, then hydraulic pressure swing rod 12 jacks up push rod 9, hydraulic pressure swing rod 12
With workpiece phase separation, so as to which workpiece be ejected, ejection action is completed.
In the present embodiment, the resetting means includes：Reset cylinder 13, it is fixedly installed on the fuselage 1, has reciprocal
The piston of motion；Swing rod 14 is resetted, is driven by the piston, is arranged side by side with the hydraulic pressure swing rod 12, the reset swing rod 14
The lower ejection axle 8 can be made rotated with rotating forward negative sense in opposite direction under the drive of the piston.
Rotate forward and refer to that, when performing ejection action, the rotation direction of rotation section or lower ejection axle 8, negative sense, which rotates, to be referred to
When performing homing action, the rotation direction of rotation section or lower ejection axle 8, and rotate forward the rotation direction phase rotated with negative sense
Instead.
In the present embodiment, rotate forward to rotate clockwise, negative sense is rotated to rotate counterclockwise.
In the present embodiment, the rotation section also includes high guarantor's oil cylinder 15, and described high one end of oil cylinder 15 of protecting is fixed, and the other end connects
The other end that the hydraulic pressure swing rod 12 is in contact with the push rod 9 is connected on, when the lower ejection axle 8 carries out negative sense rotation, institute
Stating high oil cylinder 15 of protecting can make the hydraulic pressure swing rod 12 stop a special time in original opening position.
The implementation procedure of homing action is as follows：The driving of reset cylinder 13 first resets swing rod 14, resets swing rod 14 and lower top
By key connection between shaft 8, effect of the swing rod 14 by reset cylinder 13 is now resetted, drives lower ejection axle 8 to carry out the inverse time
Pin rotates, and then lower ejection axle 8 drives draft link 10 to rotate counterclockwise, and draft link 10 drives pull bar 5 to move upwards, due to described
The effect of elastic parts, elastic parts itself can alleviate the upward fierce motion of pull bar 5.
Meanwhile hydraulic pressure swing rod 12 is enclosed on lower ejection axle 8, and it is not synchronized with the movement with lower ejection axle 8, height protects oil cylinder 15 first
Hydraulic pressure swing rod 12 is kept for a period of time, the supporting post-rod 9 of hydraulic pressure swing rod 12, facilitate worker or manipulator to there is the regular hour
Workpiece is taken out.Then high guarantor's oil cylinder 15 is rotated counterclockwise with hydrodynamic pressure swing rod 12, and push rod 9 falls, and is completed to reset and is moved
Make.
Obviously, above-described embodiment is only intended to clearly illustrate example, and is not the restriction to embodiment.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of change or
Change.There is no necessity and possibility to exhaust all the enbodiments.And the obvious change thus extended out or
Among changing still in the protection domain of the invention.
Claims (12)
1. a kind of lower ejecting mechanism, including：
Fuselage (1)；
Cam (2), with gear shaft (3) synchronous axial system；
Drive link (4), driven by the cam (2), there is fixed part and movable part, the movable part is in the cam (2)
Drive under around the fixed part reciprocally swinging；
Pull bar (5), one end are rotatablely connected with the movable part；
Ejection assembly, one end and the other end of the pull bar (5) are rotatablely connected, and it is dynamic to perform ejection under the pull bar (5) drive
Make so that workpiece to be ejected, the other end is connected with resetting means, is performed under resetting means drive and is acted with the ejection
Opposite homing action is to drive the pull bar (5) and drive link (4) to reset；
Characterized in that, also including the buffer unit on the pull bar (5), the buffer unit is applied to the pull bar (5)
Add the cushion effect opposite with the pull bar (5) direction of motion.
2. lower ejecting mechanism according to claim 1, it is characterised in that the buffer unit is spring assembly (6), described
Spring assembly (6) applies the elastic buffer power opposite with the pull bar (5) direction of motion to the pull bar (5).
3. lower ejecting mechanism according to claim 2, it is characterised in that the spring assembly (6) is sheathed on the pull bar
(5) fuselage (1) is fixed in outside spring assembly (6), described spring assembly (6) one end, and the other end is fixed on the drawing
Bar (5).
4. lower ejecting mechanism according to claim 2, it is characterised in that the spring assembly (6) is arranged at the pull bar
(5) so that the body of rod is separated into the separate upper body of rod and the lower body of rod between the body of rod, the spring assembly (6) respectively with
The upper body of rod connects with the lower body of rod.
5. lower ejecting mechanism according to claim 1, it is characterised in that the buffer unit is to be arranged at the pull bar
(5) so that the body of rod to be separated into the block rubber of the separate upper body of rod and the lower body of rod between the body of rod, the block rubber divides
It is not fixedly connected with the upper body of rod and the lower body of rod.
6. the lower ejecting mechanism according to any one of claim 1-5, it is characterised in that the drive link (4) is " L " type
Swing rod, including the vertical arm (41) and transverse arm (42) being connected, free end and the cam (2) of the vertical arm (41) support all the time
To touch, the free end of the transverse arm (42) is the fixed part being rotatably mounted to by bearing pin (43) on the fuselage (1),
The vertical arm (41) is flexibly connected with the connecting portion of the transverse arm (42) with described one end of the pull bar (5).
7. lower ejecting mechanism according to claim 6, it is characterised in that the vertical arm (41) is begun with the cam (2)
The free end contradicted eventually is provided with roller (7), and the roller (7) and the outer rim of the cam (2) are in rolling contact.
8. the lower ejecting mechanism according to any one of claim 1-7, it is characterised in that the ejection assembly includes：
Lower ejection axle (8)；
Rotation section, can be around described lower ejection axle (8) reciprocating rotation, and one end is connected with the other end of the pull bar (5)；
Push rod (9), it is capable of the top of the reciprocating other end located at the rotation section, for ejecting workpiece.
9. lower ejecting mechanism according to claim 8, it is characterised in that the rotation section includes：
Draft link (10), one end are connected with the other end of the pull bar (5), and can be under the drive of the pull bar (5), band
The dynamic lower ejection axle (8) rotates；
Swing rod trailing arm (11), be arranged side by side with the draft link (10), and with it is described it is lower ejection axle (8) synchronous axial system；
Hydraulic pressure swing rod (12), it is set on the lower ejection axle (8), top and the push rod (9) of the hydraulic pressure swing rod (12)
It is in contact, the hydraulic pressure swing rod (12) can be under the drive of the swing rod trailing arm (11), around lower positive turn of the ejection axle (8)
It is dynamic, drive the push rod (9) to move upwards.
10. lower ejecting mechanism according to claim 9, it is characterised in that the resetting means includes：
Reset cylinder (13), it is fixedly installed on the fuselage (1), there is reciprocating piston；
Swing rod (14) is resetted, is driven by the piston, is arranged side by side with the hydraulic pressure swing rod (12), described reset swing rod (14) energy
It is enough the lower ejection axle (8) rotated with rotating forward negative sense in opposite direction under the drive of the piston.
11. lower ejecting mechanism according to claim 9, it is characterised in that the rotation section also includes high guarantor's oil cylinder (15),
Described high oil cylinder (15) one end of protecting is fixed, the other end be connected to the hydraulic pressure swing rod (12) be in contact with the push rod (9) it is another
One end, when the lower ejection axle (8) carries out negative sense rotation, the high oil cylinder (15) of protecting can make the hydraulic pressure swing rod (12) in original
There is opening position to stop a special time.
12. lower ejecting mechanism according to claim 9, it is characterised in that the swing rod trailing arm (11) and the lower ejection
Key connection is used between axle (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610694805.XA CN107755571A (en) | 2016-08-19 | 2016-08-19 | A kind of lower ejecting mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610694805.XA CN107755571A (en) | 2016-08-19 | 2016-08-19 | A kind of lower ejecting mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107755571A true CN107755571A (en) | 2018-03-06 |
Family
ID=61262133
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610694805.XA Pending CN107755571A (en) | 2016-08-19 | 2016-08-19 | A kind of lower ejecting mechanism |
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| Country | Link |
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| CN (1) | CN107755571A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107756840A (en) * | 2017-07-08 | 2018-03-06 | 嘉兴大道锻造技术咨询有限公司 | A kind of forcing press for using hydraulic motor as driving force |
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| CN107756840A (en) * | 2017-07-08 | 2018-03-06 | 嘉兴大道锻造技术咨询有限公司 | A kind of forcing press for using hydraulic motor as driving force |
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