CN205816749U - Sandbox latch hook mechanism - Google Patents
Sandbox latch hook mechanism Download PDFInfo
- Publication number
- CN205816749U CN205816749U CN201620330094.3U CN201620330094U CN205816749U CN 205816749 U CN205816749 U CN 205816749U CN 201620330094 U CN201620330094 U CN 201620330094U CN 205816749 U CN205816749 U CN 205816749U
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- Prior art keywords
- latch hook
- sandbox
- latch
- cope
- guide pillar
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Abstract
The utility model discloses a kind of sandbox latch hook mechanism, including cope, drag box, cope, drag box are all square frame-shaped, the removable sandbox that is assembled between cope and drag box, it is provided with latch hook block mechanism between cope and drag box, locks by latch hook block mechanism or unlock between the two.This utility model latch hook mechanism simple in construction, shockproof, coupling mechanism force is big, installation and repairing is convenient, and cooperative mechanical hands realizes quickly unpacking mould assembling.
Description
Technical field
This utility model belongs to casting technology field, is specifically related to a kind of sandbox latch hook mechanism.
Background technology
In foundry production, sandbox, after mould assembling, needs cope, lower sand in handling and casting cycle
Case is locked, to avoid the changing of the relative positions to cause sand mold to produce misalignment.The existing mode of being locked has the most several: bolt fixed mode,
Suspension hook fixed form, clip attachment.Bolt fixed mode and these two kinds of good positioning effect of clip attachment, however it is necessary that
Artificial dismounting, loses time and operates inconvenience.The locking of suspension hook fixed form easily loosens, and lift case power the biggest time, easily cause lift case,
The phenomenon such as metal run out, cause die joint dislocation to cause foundry goods to be scrapped.
Utility model content
In order to exist in solution prior art, sandbox coupling mechanism force is limited, lock problem unreliable, unhandy, to improve casting
Make the level of production of industry automation equipment, the utility model discloses a kind of full-automatic sandbox latch hook mechanism.
This utility model adopts the following technical scheme that: a kind of sandbox latch hook mechanism, including cope, drag box, cope,
Drag box is all square frame-shaped, and between cope and drag box, the removable sandbox that is assembled, is provided with lock between cope and drag box
Hooked scarf mechanism, is locked by latch hook block mechanism or is unlocked between the two.
Described sandbox latch hook mechanism, latch hook block mechanism includes latch hook guide pad, guide pillar, locking pin, latch segment, elasticity
Part, guide pillar is fixed on drag box, and guide pillar is arranged upward；Latch hook guide pad is fixed on cope, and latch hook guide pad forms two sides
The vertical pilot hole of connection, guide pillar can stretch into one of them pilot hole the most movably, and another pilot hole is inserted up and down
Movable latch segment, latch segment touches with elastic component；Formed laterally in the two side of two pilot hole connectivity parts of latch hook guide pad
Guide hole, inserts the cylindrical locking pin of horizontal anomalous movement formula between this two horizontal guide hole；The top of guide pillar is inclined-plane towards latch segment side
Shape, under this inclined-plane place formed a recess, this recess towards latch segment side, the profile that this recess is laterally disposed with locking pin
Suitable；One recess is also formed at the top of latch segment, and this recess is towards guide pillar side, outside this recess is laterally disposed with locking pin
Shape is suitable and it down forms an inclined plane towards guide pillar side.
Described sandbox latch hook mechanism, elastic component is spring, and spring is placed in the bottom of latch segment and corresponding pilot hole
Between bottom surface.
Described sandbox latch hook mechanism, the affixed stop screw in bottom of latch segment, stop screw lower end is worn movably
Go out the bottom surface of corresponding pilot hole and be in outside latch hook guide pad.
Described sandbox latch hook mechanism, offers outer cover one shrouding at vertical guide hole in latch hook guide pad.
Described sandbox latch hook mechanism, cope, the another two opposite flank of drag box respectively form lower edges boss, from
And make to be formed between lower edges boss recess.
This utility model sandbox locking guide device includes latch hook block and guide pillar two parts, makes guiding and locking two be combined into
One, i.e. simplify structure and make again reliable lock, latch hook block be fixed on cope both sides, guide pillar is fixed on drag box both sides.Its feature
It is:
(1) latch hook mechanism simple in construction, shockproof, coupling mechanism force is big, installation and repairing is convenient, cooperative mechanical hands realize quickly open
Case mould assembling.
(2) the latch hook block that the guide pillar being fixed on drag box in modeling process inserts cope through template plays guiding work
With, make moulding entirety more stable.When mould assembling, latch hook block and guide pillar coordinate guiding to make the die cavity edge of drag box coincide.
(3) this mode is sealed reduces the damage to sandbox, extends sandbox service life.It addition, cancel pressure case ferrum, convenient
The cast of foundry goods and the input of covering flux, improve casting quality.
Accompanying drawing explanation
Fig. 1 is the structure chart of sandbox.
Fig. 2 is the opposite side structure chart of sandbox.
Fig. 3 is the top view of sandbox.
Fig. 4 is the axonometric chart of sandbox.
Fig. 5 is the structure chart that shrouding is lifted in the A portion of Fig. 2.
Fig. 6 is the Local map of sandbox lock-out state.
Fig. 7 is the Local map of sandbox released state.
Fig. 8 is stress figure during sandbox mould assembling.
Fig. 9 is the force diagram of a state during sandbox mould assembling.
Figure 10 is the stress figure of lock-out state after sandbox mould assembling.
Figure 11 is sandbox stress figure when unpacking.
In diagram, 1 cope, 2 drag boxs, 3 shroudings, 4 latch hook guide pads, 5 guide pillars, 6 locking pins, 7 lockings
Block, 8 springs, 9 stop screws, 10 push rods.
Detailed description of the invention
Below in conjunction with the accompanying drawings this utility model preferred embodiment is elaborated.
Seeing Fig. 1-7, the present embodiment sandbox is made up of cope 1, drag box 2, is provided with latch hook block mechanism between upper drag box,
Matched by locking and the unblock of latch hook block mechanism between the two.Latch hook block mechanism has two, is symmetrical arranged, is respectively arranged on
Two opposite flanks of drag box.The another two opposite flank of upper drag box respectively forms lower edges boss, so that both
Form recess 1-1, the 2-1 captured.
Each latch hook block mechanism includes that latch hook guide pad 4, guide pillar 5, locking pin 6, latch segment 7, spring 8 etc., guide pillar 5 are fixed
In drag box, it is arranged upward.Latch hook guide pad 4 is fixed on cope, and it forms the vertical pilot hole of two sides connection, wherein
One pilot hole i.e. guide pillar 5 corresponding with guide pillar 5 can stretch into this pilot hole the most movably.Another pilot hole is inserted up and down
Movable latch segment 7, loads spring 8, and the bottom of latch segment is affixed spacing between the bottom of latch segment 7 and the bottom surface of this pilot hole
Screw 9, stop screw lower end passes the bottom surface of pilot hole movably and is in outside latch hook guide pad.In latch hook guide pad
The two side of two pilot hole connectivity parts forms horizontal guide hole, inserts locking pin 6 between this two horizontal guide hole, locking pin 6 can along this two
Guide hole moves horizontally.The top of guide pillar 5 takes the form of inclined plane towards latch segment side, and under this inclined-plane, place forms a recess, and this is recessed
Mouth is also towards latch segment side, and its profile laterally disposed with locking pin is suitable.One recess is also formed at the top of latch segment 7,
This recess is towards guide pillar side, and its profile laterally disposed with locking pin is suitable and it down forms an inclined plane.In latch hook
The outer cover shrouding 3 at vertical guide hole offered by guide pad.
During locking, push rod 10 ejects promotion latch segment 7 dead spring 8, when guide pillar 5 inserts latch hook guide pad 4, guide pillar 5
In conical surface extruding in top makes the arcuate groove of locking pin 6 traversing entrance latch segment 7, when guide pillar 5 continues into until groove and locking
When cotter way is tangent, push rod 10 resets and above moves, and now spring release promotes latch segment 7 up, and it is recessed that locking pin 6 resilience snaps in guide pillar 5
In groove, guide pillar 5 is carried out spacing.
When unpacking, push rod 10 vertical depression latch segment 7, latch segment 7 compression spring 8, latch segment 7 side arcuate groove declines volume
Fixed height, now, when mechanical hand lifts cope, locking pin 6 is extruded by guide pillar 5 groove, owing to horizontal side loses latch segment 7
Constraint, in the horizontal component on guide pillar 5 groove inclined-plane makes locking pin 6 traversing entrance latch segment 7 arcuate groove, is fixed on leading of drag box
Post 5 separates with the latch hook block 4 being fixed on cope, and upper drag box separates, and now spring 8 drives latch segment 7 to reset.
Upper drag box becomes a casting entirety after locking, and mechanical hand side captures cylinder and resets grabbing in guide pillar
Hands promotes to both sides, and cope boss is left in perpendicular type grapple horizontal movement, and then mechanical hand hoist cylinder resets mechanical hand
Rising and separate with sandbox, the dolly Shift cylinder being fixed on portal frame drives trolley mechanical arm to return to pre-mould assembling station.Now,
Sandbox after mould assembling proceeds on transfer station on mould assembling conveyer chain.
Fixing device also can be set at unpacking place and open box locking mechanism (cylinder from bottom to top, now box locking mechanism is counter fills).
Below the stress of latch hook block mechanism is analyzed.
W is sandbox gross weight
W1For sandbox weight
W2For moulding sand weight
W3For every case molten iron weight
Sandbox gross weight W=W after casting1+W2+W3
Latch segment gravity G
Cylinder piston radius is r
Compressed air pressure is p
Cylinder rod pressure Fn=π r2P
Latch segment frictional force is f
The elastic coefficient is N
Pretightning force is Ft
Compression travel is L
Locking pin shear strength is σCut
During mould assembling, stress (see Fig. 8): cylinder rod produces thrust Fn=π r2P, FBullet=Ft+ NL, works as Fn > FBulletDuring+f G,
Latch segment is depressed.Now, guide pillar inserts in latch hook block, and guide pillar and locking pin interaction force are Fx, and locking pin is divided by level
α Fx is traversing for power Fa=cos.When guide pillar continues into until groove is tangent with locking cotter way, cylinder rod is replied, now, and FBullet>f+
G, spring release latch segment is up.See Fig. 9.
Locking pin is by extruding force F of latch segmentk, FkProduce horizontal component Fd=sin γ FkLocking pin resilience is snapped in and leads
In post groove.
Stress (see Figure 10) when slinging: now, guide pillar and locking pin interaction force are FClose, also produce horizontal component
FWaterWith straight component FHang down, wherein, FHang down=W/2, FWaterWith FCloseAngle is to produce stiction, F in θ acts on lock hook slotWaterTan θ=FHang down,
And locking pin and guide pillar shearing force F in vertical directionCut=FHang down=W/2, the size of this shearing force and locking pin diameter and material
Expect relevant, the diameter (d/2) of locking pin can be derived2πσCut=W/2
Now, locking pin vertical stress component acts on latch hook block cannelure, locking pin level
Component acts on latch segment, and power is not enough to produce relative displacement, keeps stable.
Stress (see Figure 11) when unpacking: cylinder rod produces thrust Fn=π r2P, FBullet=Ft+ NL, works as Fn > FBulletDuring+f G,
Latch segment pressure releases the constraint of locking pin.Now, cope is lifted by suspension hook, and guide pillar and the instantaneous interaction force of locking pin are
F, locking pin is traversing by horizontal component F1=cos β F.Upper drag box separation exhaust casing bar is replied, now, and FBullet> f+G, spring is released
Putting latch segment up, locking pin is returned to original state by latch segment extruding.
Claims (6)
1. a sandbox latch hook mechanism, including cope, drag box, cope, drag box are all square frame-shaped, cope with under
The removable sandbox that is assembled between sandbox, it is characterised in that be provided with latch hook block mechanism between described cope and drag box, between the two
Lock by latch hook block mechanism or unlock.
2. sandbox latch hook mechanism as claimed in claim 1, is characterized in that: described latch hook block mechanism include latch hook guide pad,
Guide pillar, locking pin, latch segment, elastic component, guide pillar is fixed on drag box, and guide pillar is arranged upward；Latch hook guide pad is fixed on sand
Case, latch hook guide pad forms the vertical pilot hole of two sides connection, and guide pillar can stretch into one of them the most movably and lead
Xiang Kong, another pilot hole inserts up and down formula latch segment, and latch segment touches with elastic component；Two pilot holes in latch hook guide pad
The two side of connectivity part forms horizontal guide hole, inserts the cylindrical locking pin of horizontal anomalous movement formula between this two horizontal guide hole；Guide pillar
Top takes the form of inclined plane towards latch segment side, under this inclined-plane place formed a recess, this recess towards latch segment side, this recess
The profile laterally disposed with locking pin is suitable；One recess is also formed at the top of latch segment, and this recess is towards guide pillar side, and this is recessed
Mouthful laterally disposed with locking pin profile is suitable and it down forms an inclined plane towards guide pillar side.
3. sandbox latch hook mechanism as claimed in claim 2, is characterized in that: described elastic component is spring, and spring is placed in locking
Between the bottom of block with the bottom surface of corresponding pilot hole.
4. sandbox latch hook mechanism as claimed in claim 2 or claim 3, is characterized in that: the affixed spacing spiral shell in bottom of described latch segment
Nail, stop screw lower end passes the bottom surface of corresponding pilot hole movably and is in outside latch hook guide pad.
5. sandbox latch hook mechanism as claimed in claim 2 or claim 3, is characterized in that: offer at vertical guide hole in latch hook guide pad
Outer cover one shrouding.
6. sandbox latch hook mechanism as claimed in claim 1, is characterized in that: described cope, the another two opposite side of drag box
Face respectively forms lower edges boss, so that forming recess between lower edges boss.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620330094.3U CN205816749U (en) | 2016-04-18 | 2016-04-18 | Sandbox latch hook mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620330094.3U CN205816749U (en) | 2016-04-18 | 2016-04-18 | Sandbox latch hook mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205816749U true CN205816749U (en) | 2016-12-21 |
Family
ID=58149132
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620330094.3U Active CN205816749U (en) | 2016-04-18 | 2016-04-18 | Sandbox latch hook mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205816749U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110722115A (en) * | 2019-12-05 | 2020-01-24 | 霍修沛 | Sand casting can dismantle sand box |
-
2016
- 2016-04-18 CN CN201620330094.3U patent/CN205816749U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110722115A (en) * | 2019-12-05 | 2020-01-24 | 霍修沛 | Sand casting can dismantle sand box |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |