CN109080080A - A kind of mold with thimble elder generation resetting-mechanism - Google Patents
A kind of mold with thimble elder generation resetting-mechanism Download PDFInfo
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- CN109080080A CN109080080A CN201810883070.4A CN201810883070A CN109080080A CN 109080080 A CN109080080 A CN 109080080A CN 201810883070 A CN201810883070 A CN 201810883070A CN 109080080 A CN109080080 A CN 109080080A
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- resetting
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- thimble
- elder generation
- mold
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- 230000007246 mechanism Effects 0.000 claims abstract description 20
- 238000000465 moulding Methods 0.000 claims abstract description 9
- 238000003825 pressing Methods 0.000 claims description 50
- 230000033001 locomotion Effects 0.000 claims description 10
- 238000006073 displacement reaction Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 2
- 230000009471 action Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 239000002360 explosive Substances 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004323 axial length Effects 0.000 description 1
- 230000003796 beauty Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/2602—Mould construction elements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/40—Removing or ejecting moulded articles
- B29C45/4005—Ejector constructions; Ejector operating mechanisms
- B29C45/401—Ejector pin constructions or mountings
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The present invention relates to mould applications, and in particular to a kind of mold with thimble elder generation resetting-mechanism.A kind of mold with thimble elder generation resetting-mechanism, including upper die and lower die, first resetting-mechanism is installed in the upper mold, elder generation's resetting-mechanism can be flexible relative to upper mold, release link is installed, elder generation's resetting-mechanism and the release link are oppositely arranged, and the release link is fixedly connected with ejector pin mechanism in the lower die, when molding, elder generation's resetting-mechanism stretches out upper mold and is resisted against drive ejector pin mechanism reset in release link.By the way that first resetting-mechanism and release link cooperation is arranged, first resetting-mechanism pushes release link that ejector pin mechanism is driven to reset, and realizes that thimble first resets, and so avoidable sliding block strikes thimble, avoids the damage to thimble.It solves the problems, such as that resetting structure existing in the prior art is complicated, be not suitable for and designed with small mould.
Description
Technical field
The present invention relates to mould applications, and in particular to a kind of mold with thimble elder generation resetting-mechanism.
Background technique
In the stage of car light industry rapid development, product structure is increasingly complicated, and people have invented many mould structures to protect
Demonstrate,prove mold design it is reasonable with it is reliable, improve the quality requirement of product, wherein elder generation resetting-mechanism be frequency of use in mold design
One of higher structure.
In present mold design, because of the particular/special requirement of product structure, when thimble of arranging is with sliding block, it is often necessary to thimble
It is placed in immediately below sliding block.When mold clamping, since ejector retainner plate Chang Huiwei falls back on position, sliding block is caused to strike thimble, make to push up
Needle deformation, fracture, mold can not be produced normally, increase production cost.In order to guarantee that ejector retainner plate after the completion of demoulding, resets in advance
In place, the phenomenon that avoiding thimble and sliding block from colliding, therefore reach required purpose commonly using first resetting-mechanism.But some small
In pattern tool, after the completion of mold design, the insufficient space retained must be repaired with installing a set of mechanical first resetting-mechanism
Change mould bases size, die cost is caused to increase.
Application No. is the applications of CN201420566674.3 to disclose a kind of preparatory resetting-mechanism of mandril of injection mold, and
Specifically disclose: including top panel and bottom plate, gate bush being installed on top panel, setting type chamber under top panel, type chamber with above
Inclined guide pillar is set between plate, support block is set on bottom plate, upper ejector retainner plate and lower ejector retainner plate are set on the bottom plate between support block, above,
Mandril is set between lower ejector retainner plate, side action sliders are arranged on type core in the setting type core on support block, are provided in side action sliders tiltedly
Guide hole, oblique guide hole are matched with inclined guide pillar, there is the plastic part of injection molding, mandril between type chamber, type core and side action sliders
Pass-through core is in contact with plastic part, and inserted link is installed between the top panel and type chamber, and inserted link lower part is formed with oblique surface, it is upper,
Bar of giving up the throne is installed between lower ejector retainner plate, perforation is provided in bar of giving up the throne, lock tongue is set in perforation, the length of lock tongue is longer than bar of giving up the throne
Width is formed with left tapered end and right tapered end on lock tongue, insert is arranged in type core, the inner wall of insert is formed with locked groove, is formed on locked groove
Slide guide face, locked groove and slide guide face are matched with left tapered end respectively, and right tapered end is in contact with inserted link.Above-mentioned application is using mechanical first
Resetting structure pushes ejector retainner plate up and down by the way that very long inserted link is arranged, drives thimble and mandril to reset in advance, there are structures can
It leans on, the advantages that strong applicability, but long push rod is arranged in such structure type, the problem of being easy to appear fracture, and corresponding push rod needs
Providing holes slot structure, it is all higher to requirements such as precision, and in the insufficient situation in small mould design space, while being control life
Cost is produced, such structure is difficult to meet actual design requirement.
Summary of the invention
In order to solve the problems, such as that resetting structure existing in the prior art is complicated, be not suitable for and designed with small mould, this hair
It is bright to propose a kind of mold with thimble elder generation resetting-mechanism, solve above-mentioned technical problem.Technical scheme is as follows:
A kind of mold with thimble elder generation resetting-mechanism, including upper die and lower die are equipped with first resetting-mechanism in the upper mold,
Elder generation's resetting-mechanism can be flexible relative to upper mold, is equipped with release link in the lower die, elder generation's resetting-mechanism and described multiple
Position bar is oppositely arranged, and the release link is fixedly connected with ejector pin mechanism, and when molding, elder generation's resetting-mechanism stretching upper mold is resisted against
Ejector pin mechanism is driven to reset in release link.
By the way that first resetting-mechanism and release link cooperation is arranged, first resetting-mechanism pushes release link that ejector pin mechanism is driven to reset,
Realize that thimble first resets, so avoidable sliding block strikes thimble, avoids the damage to thimble.
Further, the mounting groove for installing first resetting-mechanism is offered in the upper mold, elder generation's resetting-mechanism includes multiple
Position bar crushing block, pressing plate and first back-moving spring, one end of the first back-moving spring and the inner bottom surface of holding tank connect, described
The other end of first back-moving spring is fixedly connected with release link crushing block, and the briquetting is located at the notch of mounting groove described in limit
Release link crushing block.
Further, the release link crushing block includes the hanging platform and crushing block of axial restraint connection, the hanging platform and institute
State that crushing block is cylindrical, the outer diameter of the hanging platform is greater than the outer diameter of the crushing block, the first back-moving spring with it is described
The separate crushing block of hanging platform is fixedly connected on one side, and the through-hole passed through for release link crushing block is offered on the pressing plate, described
Outer diameter of the aperture of through-hole not less than the crushing block and the outer diameter less than the hanging platform.
Further, the internal diameter of the through-hole and the crushing block clearance fit, the through-hole is outer than the crushing block
The big 1mm of diameter.
Further, the mounting groove successively includes spring groove, guide groove and the pressing plate groove communicated from the inside to the outside, described to lead
Be greater than the internal diameter of the spring groove to the internal diameter of slot, the accommodating first back-moving spring in the spring groove, the spring groove with
The first back-moving spring clearance fit；Release link crushing block, the guide groove and the release link are accommodated in the guide groove
Crushing block clearance fit；Pressing plate is accommodated in the pressing plate groove.
Further, the internal diameter of the spring groove is 1mm bigger than the outer diameter of the first back-moving spring；The guide groove it is interior
Diameter is 2mm bigger than the outer diameter of the hanging platform；The pressing plate is locked in the pressing plate groove.
Further, the upper mold includes cope plate and model frame, and elder generation's resetting-mechanism is located in model frame, under described
Mould includes lower template and dynamic model frame, and support block is provided between the lower template and dynamic model frame, is equipped with thimble between the support block
Mechanism.
Further, the ejector pin mechanism includes upper ejector retainner plate, lower ejector retainner plate and thimble, installs top on the upper ejector retainner plate
Needle, the upper ejector retainner plate are fixedly connected with the lower ejector retainner plate, and the release link is also mounted on ejector retainner plate, the release link
On be also arranged with second back-moving spring, the extended dynamic model frame in the top of the release link.
Further, it is further fixedly arranged on inclined guide pillar in the model frame, is provided with sliding block on dynamic model frame, in the sliding block
Offer the oblique guide hole with inclined guide pillar cooperation.
Further, the safety movement distance S of the release link crushing block are as follows: S=LSlip level/ tan α, wherein LSlip levelFor cunning
The horizontal displacement distance of block, α are the inclination angle of inclined guide pillar in the vertical direction；The depth of the spring groove is HBullet=LBullet is total-
LPlay precompressed-LPlay stroke, wherein LBullet is totalFor first back-moving spring total length, LPlay precompressedWhen being resisted against on pressing plate for hanging platform, first back-moving spring
Precompressed length；LPlay strokeFor spring travel, LPlay stroke=S.
Based on the above-mentioned technical proposal, the technical effect achieved by the present invention are as follows:
1. the mold of the invention with thimble elder generation resetting-mechanism, it can be achieved that molding when thimble first reset, avoid sliding block
The problem of when being arranged above thimble, sliding block strikes thimble, makes thimble deformation, fracture, and mold can not be produced normally；
2. thimble elder generation resetting-mechanism of the invention is using the structure of reset spring, release link crushing block and pressing plate, when die sinking,
Under the action of first back-moving spring, release link crushing block stretches out, and hanging platform is against on pressing plate, and crushing block stretches out pressing plate；When molding,
The working face of crushing block is resisted against in release link, is pushed ejector pin mechanism to reset by release link, is realized the first reset of thimble.Pass through
The purpose for resetting thimble in advance is realized in the interaction of power, mechanical mutual movement.By the effect of spring, will reset
The ejection of bar crushing block during mold clamping, is first squeezed with release link beyond the certain height of model frame, thus
Ejector retainner plate is resetted in advance, sliding block is avoided and thimble collides the phenomenon that interfering with this.Meanwhile this novel first resetting machine
Structure structure is simple, and rationally, interchangeability is strong for design, especially in small mould design, can reduce production cost, guarantees mold
Processing quality can also improve the beauty of mold to a certain extent；
3. first resetting-mechanism of the invention is located in model frame, and with the mounting groove clearance fit in model frame so that its
During assembly is with work, movement is smooth, reaches the job requirement first resetted；
4. the guide groove in first resetting-mechanism model frame of the invention expands, crushing block hanging platform moves to workpiece bottom, adds
The form of pressing plate, to expand limit contact area, making structure, more rationally easy making process is convenient for changing；
5. first resetting-mechanism of the invention closes the safety movement distance of release link crushing block and the depth of spring groove
The setting of reason conveniently accurately controls the motion path of release link crushing block, sliding block is avoided to strike thimble.
Detailed description of the invention
Fig. 1 is the explosive view of mold of the invention；
Fig. 2 is the structural schematic diagram of mold of the invention；
Fig. 3 is the Section A-A figure of Fig. 2；
Fig. 4 is the explosive view of first resetting-mechanism of the invention；
Fig. 5 is the structural schematic diagram of upper mold of the invention；
Fig. 6 is the section B-B figure of Fig. 5；
In figure: 1- elder generation resetting-mechanism；11- first back-moving spring；12- release link crushing block；121- crushing block；122- is hung
Platform；13- pressing plate；2- release link；21- second back-moving spring；3- upper mold；31- cope plate；32- model frame；321- mounting groove；
3211- spring groove；3212- guide groove；3213- pressing plate groove；4- lower die；41- lower template；42- support block；43- dynamic model frame；5- thimble
Mechanism；The upper ejector retainner plate of 51-；Ejector retainner plate under 52-；53- thimble；6- sliding block；7- inclined guide pillar.
Specific embodiment
The contents of the present invention are further described with reference to the accompanying drawings of the specification.
As shown in figures 1 to 6, a kind of mold with thimble elder generation resetting-mechanism, including upper mold 3 and lower die are present embodiments provided
4, first resetting-mechanism 1 is installed in upper mold 3, first resetting-mechanism 1 can be flexible relative to upper mold 3, release link 2 is installed in lower die 4,
First resetting-mechanism 1 and release link 2 are oppositely arranged, and release link 2 is fixedly connected with ejector pin mechanism 5, and when molding, first resetting-mechanism 1 is stretched
Upper mold 3, which is resisted against in release link 2, out drives ejector pin mechanism 5 to reset.
Upper mold 3 includes cope plate 31 and model frame 32, and cope plate 31 is fixedly connected with model frame 32, cope plate 31 and cover half
The separate lower die 4 of frame 32 is fixedly connected on one side.The mounting groove 321 for installing first resetting-mechanism 1, installation are offered in model frame 32
Slot 321 extends internally on one side from the close lower die 4 of model frame 32.Accordingly with the structure of first resetting-mechanism 1, from inside to outside,
Mounting groove 321 successively includes spring groove 3211, guide groove 3212 and pressing plate groove 3213, and mounting groove 321 is similar to as a whole
Blind hole structure, spring groove 3211, guide groove 3212 and 3213 three of pressing plate groove are sequentially communicated, and pressing plate groove 3213 is located at most external,
And it communicates with the outside world.
First resetting-mechanism 1 is mounted in mounting groove 321, and first resetting-mechanism 1 includes first back-moving spring 11, release link extruding
Block 12 and pressing plate 13, accordingly, first back-moving spring 11 are located in spring groove 3211, and release link crushing block 12 is located at guide groove
In 3212, pressing plate 13 is located in pressing plate groove 3213.The fixed company in one end of first back-moving spring 11 and the interior bottom end of mounting groove 321
It connects, the other end is fixedly connected with one end of release link crushing block 12, and release link crushing block 12 is in external force and first back-moving spring 11
Under the action of, it is moved along guide groove 3213, pressing plate 13 limits release link crushing block 12.
Further, release link crushing block 12 includes the crushing block 121 and hanging platform 122 being fixedly connected, crushing block 121 and extension
Platform 122 be it is cylindric, the outer diameter of hanging platform 122 is greater than the outer diameter of crushing block 121, and crushing block 121 and hanging platform 122 are located at same axis
On line, first back-moving spring 11 is fixedly connected with one end of the separate crushing block 121 of hanging platform 122.
In order to limit release link crushing block 12 well, setting spring groove 3211 and guide groove 3212 are cylindrical groove,
The internal diameter of spring groove 3211 is less than the internal diameter of guide groove 3212, and the internal diameter of spring groove 3211 is less than the outer diameter of hanging platform 122, pressing plate 13
In pressing plate groove 3213, through-hole is provided on pressing plate 13, the aperture of through-hole is more than or equal to the outer diameter of crushing block 121 and is less than hanging platform
122 outer diameter, in this way, defining the motion range of release link crushing block 12, hanging platform 122 can only move in guide groove 3212,
Crushing block 121 can move in guide groove 3212, can also partially stretch out pressing plate 13.Preferably, pressing plate 13 is square, it is preferable that
Pressing plate 13 is in the rectangular of chamfering, and pressing plate 13 is embedded in pressing plate groove 3213, and is locked by screw, it is preferable that pressing plate 13 is pacified
After in pressing plate groove 3213, the outer surface of pressing plate 13 is flushed with the surface of adjacent model frame 32.
It is further preferred that the normal work in order to guarantee first resetting-mechanism 1, spring groove 3211 and first back-moving spring 11
Between clearance fit, i.e., the internal diameter of spring groove 3211 be greater than first back-moving spring 11 outer diameter.Preferably, spring groove 3211 is interior
Diameter is 1mm bigger than the outer diameter of first back-moving spring 11.Clearance fit between guide groove 3212 and release link crushing block 12, i.e. guide groove
3212 internal diameter is greater than the outer diameter of hanging platform 122.Preferably, the internal diameter of guide groove 3212 is 2mm bigger than the outer diameter of hanging platform 122.Pressing plate
It is also clearance fit between 13 and release link crushing block 12, i.e., the aperture of through-hole is greater than squeezing for release link crushing block 12 on pressing plate 13
The outer diameter of briquetting 121.Preferably, the big 1mm of outer diameter of the aperture ratio crushing block 121 of the through-hole on pressing plate 13.It is further preferred that
The depth of guide groove 3212 and pressing plate groove 3213 and axial length equal to release link crushing block 12.
Lower die 4 includes lower template 41, support block 42 and dynamic model frame 43, and support block 42 is located in lower template 41 and dynamic model frame 43
Between, and support block 42 is fixedly connected with lower template 42 and moving template 43 respectively.Support block 42 is two, is provided between two support blocks 42
Ejector pin mechanism 5, ejector pin mechanism 5 include ejector retainner plate and thimble 53, and ejector retainner plate includes upper ejector retainner plate 51 and lower ejector retainner plate 52, thimble 53
It is mounted on ejector retainner plate 51, lower ejector retainner plate 52 is fixedly connected with upper ejector retainner plate 51.Specifically, the bottom end of thimble 53 is embedded in upper top
On needle plate 51, the top of thimble 53 passes through upper ejector retainner plate 51, and the top of thimble 53 may further pass through the ejection molding upwards of dynamic model frame 43
Product.Slide block slot is offered in the one side towards model frame 32 of dynamic model frame 43, and sliding block 6, model frame 32 are provided in slide block slot
On be fixedly connected with inclined guide pillar 7, oblique guide hole corresponding with inclined guide pillar 7 is provided in sliding block 6, is passed through for inclined guide pillar 7 and along oblique
Guide hole movement.
Release link 2 is fixedly connected with ejector pin mechanism 5, and the bottom end of release link 2 is on upper ejector retainner plate 51, the bottom of release link 2
End is provided with the extension radially extended, and the mounting hole being adapted with the lower shape of release link 2 is offered on upper ejector retainner plate 51, under
Ejector retainner plate 52 is fixedly connected with upper ejector retainner plate 51 compresses release link 2, and the top of release link 2, which passes through, stretches out upper ejector retainner plate 51, dynamic model
The movable through-hole stretched out for release link 2 is offered on frame 43, and the upper surface of dynamic model frame 43 is stretched out for release link 2.Preferably, multiple
It is also arranged with second back-moving spring 21 on the bar 2 of position, spring mounting groove, one end of second back-moving spring 21 are offered on dynamic model frame 43
It is resisted against in spring mounting groove, one end is resisted against on ejector retainner plate 51.
Further, the safety movement distance S of release link crushing block 12 are as follows:
S=LSlip level/ tan α,
Wherein LSlip levelFor the horizontal displacement distance of sliding block 6, α is the angle of inclined guide pillar and vertical direction.Above-mentioned safety fortune
When dynamic distance S is substantially exactly that the hanging platform 122 of release link crushing block 12 is resisted against on pressing plate 13, crushing block 121 stretches out model frame
32 length.It in order to guarantee the reset response to thimble, protects, is needed to crushing block 121 also for first resetting-mechanism
The maximum length of stretching model frame be reasonably arranged.
Further, the depth of spring groove 3211 are as follows:
HBullet=LBullet is total-LPlay precompressed-LPlay stroke,
Wherein, LBullet is totalFor the total length of first back-moving spring 11, LPlay precompressedWhen being resisted against on pressing plate 13 for hanging platform 122, first is multiple
The precompressed length of position spring 11；LPlay strokeFor stroke of the spring in mounting groove 321, LPlay stroke=S.The depth of spring groove 3211 needs
Rationally it is arranged, is met, when effect of the release link crushing block 12 not by external force, in the effect of first back-moving spring 11
Under, release link crushing block 12 can be pushed to be resisted against on pressing plate 13, and the coupling mechanism force of pressing plate 13 is greater than the pre- of first back-moving spring 11
Pressure pressure, therefore the position of release link crushing block 12 can be limited.
Based on above structure, the working principle of the mold of the invention with thimble elder generation resetting-mechanism are as follows: when molding, due to upper
Mould 3 and lower die 4 are in separated state, and release link crushing block 12 is protruding under the action of first back-moving spring 11, reset
The hanging platform 122 of bar crushing block 12 is resisted against on pressing plate 13, and the crushing block 121 of release link crushing block 12 stretches out pressing plate 13.4 court of lower die
It moves and is molded to the direction of upper mold 3, during the motion, the release link 2 in lower die 4 first offsets with crushing block 121, squeezes
Block 121 pushes release link 2 to move downward, and release link 2 drives ejector retainner plate, and ejector retainner plate drives thimble 53 to reset in advance.Inclined guide pillar 7 is stretched
Enter into the oblique guide hole of sliding block 6 band movable slider 6 to reset.Completely after molding, under injection molding machine pressure, release link 2 can be by release link
Crushing block 12 is fully retracted into model frame 32.In this way, will not occur sliding block 6 even if sliding block 6 is located at the top of thimble 53 and touch
To the top of thimble 53, the problem of damaging thimble 53.
Embodiments of the present invention are explained in detail above in conjunction with attached drawing, but the present invention is not limited to above-mentioned implementations
Mode within the knowledge of a person skilled in the art can also be in the premise for not departing from spirit of the invention
Under make a variety of changes.
Claims (10)
1. a kind of mold with thimble elder generation resetting-mechanism, including upper mold (3) and lower die (4), which is characterized in that the upper mold (3)
On be equipped with first resetting-mechanism (1), elder generation's resetting-mechanism (1) can be flexible relative to upper mold (3), installs on the lower die (4)
Have release link (2), elder generation's resetting-mechanism (1) and the release link (2) are oppositely arranged, the release link (2) and ejector pin mechanism
(5) it is fixedly connected, when molding, elder generation's resetting-mechanism (1), which is stretched out upper mold (3) and is resisted against on release link (2), drives ejector pin mechanism
(5) it resets.
2. a kind of mold with thimble elder generation resetting-mechanism as described in claim 1, which is characterized in that opened in the upper mold (3)
Equipped with the mounting groove (321) for installing first resetting-mechanism (1), elder generation's resetting-mechanism (1) includes first back-moving spring (11), resets
One end of bar crushing block (12) and pressing plate (13), the first back-moving spring (11) is connect with the inner bottom surface of holding tank (321), institute
The other end for stating first back-moving spring (11) is fixedly connected with release link crushing block (12), and the briquetting (13) is located at mounting groove
(321) the release link crushing block (12) is limited at notch.
3. a kind of mold with thimble elder generation resetting-mechanism as claimed in claim 2, which is characterized in that the release link crushing block
(12) include axial restraint connection crushing block (121) and hanging platform (122), the hanging platform (122) and the crushing block (121) are
Cylindrical, the outer diameter of the hanging platform (122) is greater than the outer diameter of the crushing block (121), the first back-moving spring (11) with
Separate crushing block (121) of the hanging platform (122) are fixedly connected on one side, are offered on the pressing plate (13) and are squeezed for release link
The through-hole that block (12) passes through, the aperture of the through-hole are not less than the outer diameter of the crushing block (121) and are less than the hanging platform (122)
Outer diameter.
4. a kind of mold with thimble elder generation resetting-mechanism as claimed in claim 3, which is characterized in that the through-hole is squeezed with described
The internal diameter of briquetting (121) clearance fit, the through-hole is 1mm bigger than the outer diameter of the crushing block (121).
5. such as a kind of described in any item molds with thimble elder generation resetting-mechanism of claim 2-4, which is characterized in that the installation
Slot (321) successively includes spring groove (3211), guide groove (3212) and the pressing plate groove (3213) communicated, the guiding from the inside to the outside
The internal diameter of slot (3212) is greater than the internal diameter of the spring groove (3211), and accommodating described first resets bullet in the spring groove (3211)
Spring (11), the spring groove (3211) and the first back-moving spring (11) clearance fit；Accommodating in the guide groove (3212)
Release link crushing block (12), the guide groove (3212) and release link crushing block (12) clearance fit；The pressing plate groove
(3213) pressing plate (13) are accommodated in.
6. a kind of mold with thimble elder generation resetting-mechanism as claimed in claim 5, which is characterized in that the spring groove (3211)
Internal diameter it is 1mm bigger than the outer diameter of the first back-moving spring (11)；The internal diameter of the guide groove (3212) is than the hanging platform (122)
The big 2mm of outer diameter；The pressing plate (13) is locked in the pressing plate groove (3213).
7. a kind of mold with thimble elder generation resetting-mechanism as claimed in any one of claims 1 to 6, which is characterized in that the upper mold
It (3) include cope plate (31) and model frame (32), elder generation's resetting-mechanism (1) is located in model frame (32), lower die (4) packet
Lower template (41) and dynamic model frame (43) are included, is provided with support block (42), the mould between the lower template (41) and dynamic model frame (43)
Ejector pin mechanism (5) are installed between foot (42).
8. a kind of mold with thimble elder generation resetting-mechanism as claimed in claim 7, which is characterized in that the ejector pin mechanism (5)
Including ejector retainner plate and thimble (53), the thimble (53) is fixedly mounted on ejector retainner plate, and the release link (2) is also mounted at thimble
It on plate, is also arranged with second back-moving spring (21) on the release link (2), the extended dynamic model frame in top of the release link (2)
(43)。
9. a kind of mold with thimble elder generation resetting-mechanism as claimed in claim 7 or 8, which is characterized in that the model frame
(32) be further fixedly arranged on inclined guide pillar (7), be provided on dynamic model frame (43) sliding block (6) on, offer in the sliding block (6) with tiltedly
The oblique guide hole of guide post (7) cooperation.
10. a kind of mold with thimble elder generation resetting-mechanism as claimed in claim 9, which is characterized in that the release link squeezes
The safety movement distance S of block (12) are as follows:
S=LSlip level/tanα
Wherein, LSlip levelFor the horizontal displacement distance of sliding block, α is the angle of inclined guide pillar and vertical direction；
The depth of the spring groove are as follows:
HBullet=LBullet is total-LPlay precompressed-LPlay stroke
Wherein, LBullet is totalFor first back-moving spring total length, LPlay precompressedWhen being resisted against on pressing plate for hanging platform, the precompressed of first back-moving spring
Length；LPlay strokeThe stroke for being spring in mounting groove, LPlay stroke=S.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111904665A (en) * | 2020-07-22 | 2020-11-10 | 四川大学 | Bone increment auxiliary system, design method and bone increment auxiliary device |
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