CN205309265U - Cylinder cap casting mold opening mechanism - Google Patents

Abstract

The utility model relates to a metal die casting form -ing technology field discloses a cylinder cap casting mold opening mechanism, cover half and the movable mould inside shape moulding chamber of laminating mutually, open on the cover half have with the communicating perforation of die cavity, the movable mould includes first movable mould and second movable mould, is equipped with the core bar of connection on the second movable mould in the die cavity, articulated on the first movable mould have limiting hook, is equipped with on the second movable mould to hold the corresponding circular bead of end with this limiting hook's hook, is equipped with the gag lever post on the cover half, and this gag lever post passes the through -hole of locating on the limiting hook, leaves the clearance between gag lever post and the through -hole, and the spacing end of gag lever post is equipped with the shaft shoulder, and the overcoat is flexible on the gag lever post, and this elastic component clamp is adorned between limiting hook and cover half, threaded connection has the screw rod on the second movable mould, and the drive end other end of this screw rod rotates to be connected on the cover half, and the drive end of screw rod is connected with the hand wheel. Adopt above -mentioned scheme, the secondary drawing of patterns is more reliable and more stable, and the structure is also very simple simultaneously, is convenient for make, installs and overhauls.

Description

Cylinder cap casting die opening mechanism

Technical field

This utility model relates to die cast metal field shaping technique.

Background technology

At present, the mold mechanism of die cast metal molding twice parting has several as follows: (1) spring typing pull bar spacing twice parting, and when it is die sinking, die casting machine opening and closing modular system moves after driving dynamic model part. Due to spring effect, mould is first at the auxiliary die joint typing of cover half part, and intermediate plate moves with dynamic model, and main condensed material in runner pulls out therewith. When dynamic model part nut with between plate contact, make in mould plate stop mobile. Dynamic model moves after continuing, and main parting line is opened; Because foundry goods packs tightly on core, at this moment the solidifying material of running gate system is broken voluntarily at solidifying mouth place, then drops out voluntarily outside mould at the auxiliary die joint place of cover half part. This mold mechanism mould structure is simple, and cost is low, but mold actions non insurance, and in mould, set spring one ruptures, and die joint is not just opened, simultaneously mold damage groundwork part. (2) twice parting of swing hook typing screw spacing, when it is die sinking, dynamic model part is moved rearwards by, and owing to the swing hook being fixed on intermediate plate holds the block in gripper shoe, mould is opened from the auxiliary die joint of cover half part; Die sinking is after certain distance; swing hook produces to swing and break off relations under the effect of briquetting; intermediate plate stops mobile under the restriction of stop screw simultaneously; its main parting line is made to open; this mold mechanism action is solid and reliable; pressure transmission is good, but mould structure is complicated, and Making mold, installation, debugging, maintenance are inconvenient for.

Utility model content

This utility model is intended to provide a kind of die sinking reliable, simultaneously the cylinder cap casting die opening mechanism of simple in construction.

Cylinder cap casting die opening mechanism in this programme, including dynamic model and cover half, described fixed half and moving half fits and is internally formed die cavity, and cover half has the perforation with mould cavity, described dynamic model includes the first dynamic model and the second dynamic model, is provided with the core bar being connected on the second dynamic model in die cavity; Described first dynamic model is hinged with positive stop hook, second dynamic model is provided with the hook with this positive stop hook and holds the shoulder that end is corresponding, described cover half is provided with gag lever post, gag lever post coordinates with the via clearance arranged on positive stop hook, the positive stop end of gag lever post is provided with the shaft shoulder, the flexible part of overcoat on gag lever post, this elastic component is clipped between positive stop hook and cover half; Threaded on described second dynamic model have screw rod, and the other end of this screw rod is rotatably connected on cover half, and the drive end of screw rod is connected to handwheel.

Beneficial effect: molten metal bath enters die cavity by the perforation on cover half, under pressure, point molten metal solidifies, after Workpiece shaping, shake handwheel drives screw rod to rotate, owing to screw shaft is upwards limited by cover half, cause that the second dynamic model does the motion that screw rod is axial, the second dynamic model is promoted to move, positive stop hook is held end hook at the hook of the thrust lower limit hook of elastic component and is leaned against on the shoulder of the second dynamic model, and the second dynamic model moves and the first dynamic model can be driven to move so that the first dynamic model and cover half are separately, die cavity is opened, and carries out the demoulding;When positive stop hook is driven the shaft shoulder place of gag lever post, shaft shoulder conflict positive stop hook rotates, and positive stop hook departs from the shoulder on the second dynamic model, second dynamic model and the first dynamic model are departed from, and the second dynamic model continues to move to, and the first dynamic model is static, thus core bar is extracted out from workpiece, it is achieved the secondary demoulding. Adopting such scheme, the secondary demoulding is more reliable and more stable, and structure is also very simple simultaneously, it is simple to manufactures, install and maintenance.

Further, described cover half being connected to guide post, this guide post inserts in the blind hole being correspondingly provided with on dynamic model, and the positive stop end of guide post is provided with convex shoulder, and the opening part of blind hole is provided with the corresponding step limiting convex shoulder. Guide post can play leading further to of the movement between cover half and the first dynamic model, it is prevented that skew, die sinking process is more stable.

Further, described core bar passes the first dynamic model and the second dynamic model and is threaded on the second dynamic model, and the external part of core bar extends in die cavity. Core bar is threaded carries self-locking action, and scalable core bar puts in the position of die cavity, changes core-drawing hole length.

Further, the drive end of described core bar is provided with handle, it is simple to rotate core bar.

Further, described elastic component is stage clip, manufactures simple, and cost is low.

Accompanying drawing explanation

Fig. 1 is the structural representation of this utility model cylinder cap casting die opening mechanism embodiment.

Detailed description of the invention

Below by detailed description of the invention, this utility model is described in further detail:

Accompanying drawing labelling in Figure of description includes: cover half 1, perforation 11, guide post 12, gag lever post 13, stage clip the 131, first dynamic model the 2, second dynamic model 21, positive stop hook 3, core bar 4, handle 41, screw rod 5, handwheel 51.

Embodiment is substantially as shown in Figure 1:

Cylinder cap casting die opening mechanism in this programme, including dynamic model and cover half 1, cover half 1 and dynamic model fit and are internally formed die cavity, and cover half 1 has the perforation 11 with mould cavity, and dynamic model includes the first dynamic model 2 and the second dynamic model 21, is provided with core bar 4 in die cavity.

First dynamic model 2 is hinged with positive stop hook 3, second dynamic model 21 is processed have and hold the shoulder that end is corresponding with the hook of this positive stop hook 3, cover half 1 is connected to gag lever post 13, the traverse of this gag lever post 13 is opened in the through hole on positive stop hook 3, gap is left between gag lever post 13 and through hole, the positive stop end of gag lever post 13 is provided with the shaft shoulder, is cased with stage clip 131 outside on gag lever post 13, and this stage clip 131 is clipped between positive stop hook 3 and cover half 1; Threaded on described second dynamic model 21 have screw rod 5, and the other end of this screw rod 5 is rotatably connected on cover half 1, and the drive end of screw rod 5 is connected to handwheel 51.

Being connected to guide post 12 on cover half 1, this guide post 12 inserts in blind hole corresponding on dynamic model, and the positive stop end processing of guide post 12 has convex shoulder, and the opening part of blind hole limits the step of convex shoulder accordingly. Guide post 12 can play leading further to of the movement between cover half 1 and the first dynamic model 2, it is prevented that skew, die sinking process is more stable. Core bar 4 passes the first dynamic model 2 and the second dynamic model 21 and is threaded on the second dynamic model 21, and the external part of core bar 4 extends in die cavity. Core bar 4 is threaded carries self-locking action, and scalable core bar 4 puts in the position of die cavity, changes core-drawing hole length. The left end of core bar 4 is welded with handle 41, it is simple to rotate core bar 4.

Operation principle: molten metal bath enters die cavity by the perforation 11 on cover half 1, under pressure, point molten metal solidifies, after Workpiece shaping, shake handwheel 51 drives screw rod 5 to rotate, owing to screw rod 5 is axially limited by cover half 1, cause that the second dynamic model 21 does the motion that screw rod 5 is axial, the second dynamic model 21 is promoted to move, positive stop hook 3 is held end hook at the hook of the thrust lower limit hook 3 of stage clip 131 and is leaned against on the shoulder of the second dynamic model 21, and the second dynamic model 21 moves and the first dynamic model 2 can be driven to move so that the first dynamic model 2 and cover half 1 are separately, die cavity is opened, and carries out the demoulding;When positive stop hook 3 is driven the shaft shoulder place of gag lever post 13, shaft shoulder conflict positive stop hook 3 rotates, positive stop hook 3 departs from the shoulder on the second dynamic model 21, second dynamic model 21 and the first dynamic model 2 are departed from, second dynamic model 21 continues to move to, first dynamic model 2 is static, thus being extracted out from workpiece by core bar 4, it is achieved the secondary demoulding.

Above-described is only embodiment of the present utility model, and in scheme, the general knowledge such as known concrete structure and characteristic does not do too much description at this. Should be understood that; for a person skilled in the art, under the premise without departing from this utility model structure, it is also possible to make some deformation and improvement; these also should be considered as protection domain of the present utility model, and these are all without affecting effect and the practical applicability that this utility model is implemented. The protection domain that this application claims should be as the criterion with the content of its claim, and the detailed description of the invention in description etc. records the content that may be used for explaining claim.

Claims (5)

1. a cylinder cap casting die opening mechanism, including dynamic model and cover half, described fixed half and moving half fits and is internally formed die cavity, and cover half has the perforation with mould cavity, it is characterized in that: described dynamic model includes the first dynamic model and the second dynamic model, is provided with the core bar being connected on the second dynamic model in die cavity; Described first dynamic model is hinged with positive stop hook, second dynamic model is provided with the hook with this positive stop hook and holds the shoulder that end is corresponding, described cover half is provided with gag lever post, gag lever post coordinates with the via clearance arranged on positive stop hook, the positive stop end of gag lever post is provided with the shaft shoulder, the flexible part of overcoat on gag lever post, this elastic component is clipped between positive stop hook and cover half; Threaded on described second dynamic model have screw rod, and the other end of this screw rod is rotatably connected on cover half, and the drive end of screw rod is connected to handwheel.

2. cylinder cap according to claim 1 casting die opening mechanism; it is characterized in that: described cover half is connected to guide post; this guide post inserts in the blind hole being correspondingly provided with on dynamic model, and the positive stop end of guide post is provided with convex shoulder, and the opening part of blind hole is provided with the corresponding step limiting convex shoulder.

3. cylinder cap according to claim 2 casting die opening mechanism, it is characterised in that: described core bar passes the first dynamic model and the second dynamic model and is threaded on the second dynamic model, and the external part of core bar extends in die cavity.

4. cylinder cap according to claim 3 casting die opening mechanism, it is characterised in that: the drive end of described core bar is provided with handle.

5. cylinder cap according to claim 4 casting die opening mechanism, it is characterised in that: described elastic component is stage clip.