CN212264458U

CN212264458U - Precision engine cylinder body mold core structural part

Info

Publication number: CN212264458U
Application number: CN202020580006.1U
Authority: CN
Inventors: 蒋金标; 孙涛涛
Original assignee: Shenzhen Hanba Electromechanical Co ltd
Current assignee: Shenzhen Hanba Electromechanical Co ltd
Priority date: 2020-04-17
Filing date: 2020-04-17
Publication date: 2021-01-01
Anticipated expiration: 2030-04-17

Abstract

The utility model discloses an accurate engine cylinder body mold core structure, including roof, mold core component and lower mould, the roof bottom is seted up flutedly, and the inside convex top mould that is provided with of recess, the convex top mould is threaded holes all around, and threaded hole inside runs through there is the bolt, the mold core component is fixed in convex top mould bottom, and convex top mould top surface one side seted up the inlet tube, inlet tube one side parallel distribution has the drain pipe, the lower mould sets up in the roof below. This precision engine cylinder body mold core structure makes the water pocket prop up to the inside injected liquid of water pocket thereby makes flexible subshell stretch out to the outside, flexible subshell forms a complete mold core spare with the mold core owner shell this moment, the later stage is taken the inside water of water pocket out through the drain pump and is made the water pocket shrink, the water pocket shrink is carried inside flexible subshell withdrawal mold core owner shell, be favorable to reducing the whole volume of this mold core spare, make things convenient for the later stage to take out this mold core spare, avoid the line of scratch wearing and tearing cylinder body inner wall simultaneously.

Description

Precision engine cylinder body mold core structural part

Technical Field

The utility model relates to a mold core technical field specifically is an accurate engine cylinder body mold core structure.

Background

The mold core is a precision part used for key operation of the central part of a mold, the general structure of the mold core is extremely complex, the processing difficulty is very high, the manufacturing cost is very high, the labor cost for manufacturing the mold core is greatly higher than that of the material, the selection of the material of the mold core is directly related to the manufacturing cost of the mold and the service life of the mold, and the mold core is also a part which cannot be lost in the casting of a precision engine cylinder body.

The existing precision engine cylinder body is formed by injecting liquid materials into a combined mold, corresponding grains on the inner wall of the cylinder body are formed through a mold core, however, the mold core is not easy to take out in the later period due to the fact that the grains on the inner wall of the precision engine cylinder body are irregular, the grains are easy to wear away in the taking-out process, and accordingly the quality of the cylinder body is reduced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an accurate engine cylinder body mold core structure to provide generally in solving above-mentioned background art because accurate engine cylinder body inner wall line irregularity leads to the later stage mold core to be difficult for taking out, wearing and tearing fall the line at the in-process of taking out easily, thereby lead to the problem that the cylinder body quality reduces.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an accurate engine cylinder block mold core structure, includes roof, mold core component and lower mould, the roof bottom is seted up flutedly, and the inside convex top mould that is provided with of recess, threaded hole is seted up all around to convex top mould, and threaded hole inside runs through there is the bolt, the mold core component is fixed in convex top mould bottom, and convex top mould top surface one side seted up the inlet tube, inlet tube one side parallel distribution has the drain pipe, and the drain pipe top is connected with the drain pump, the lower mould sets up in the roof below.

Preferably, the structural dimension of the inner opening of the groove is matched with the structural dimension of the outer opening at the top of the convex top die, and the upper surface of the convex top die is attached to the lower surface of the top plate.

Preferably, the threaded hole on the surface of the convex top die and the threaded hole on the surface of the top plate are overlapped, and the convex top die forms a detachable structure through the bolt, the threaded hole and the top plate.

Preferably, the mold core component includes mold core owner shell, flexible subshell, soft iron sheet, draw-in groove, card strip and water pocket, and the inside flexible subshell that is provided with of mold core owner shell, flexible subshell end edge is connected with the soft iron sheet, the draw-in groove has been seted up to mold core owner shell inner wall, the soft iron sheet surface is provided with the card strip, and soft iron sheet internal surface bonds and has the water pocket.

Preferably, the soft iron sheet forms a clamping structure through the clamping strip, the clamping groove and the mold core main shell, and the soft iron sheet is of an elastic structure.

Preferably, the telescopic auxiliary shell and the water bag form a telescopic structure through the soft iron sheet, and the telescopic auxiliary shell and the soft iron sheet are in a welding integrated structure.

Preferably, the drain pipe runs through the convex top die and the inside of the top plate, and the drain pipe is of a flexible structure.

Compared with the prior art, the beneficial effects of the utility model are that:

this precision engine cylinder body mold core structure makes the water pocket prop up thereby it stretches out to the outside to make the soft iron sheet carry flexible subshell to carry through the inlet tube to the inside injection liquid of water pocket, flexible subshell forms a complete mold core spare with the mold core owner shell this moment, the later stage is taken the inside water of water pocket out through the drain pump and is made the water pocket shrink, the water pocket shrink is carried inside flexible subshell withdrawal mold core owner shell, thereby be favorable to reducing the whole volume of this mold core spare, make things convenient for the later stage to take out this mold core spare, avoid the line of scratch wearing and tearing cylinder body inner wall simultaneously.

This precision engine cylinder body mold core structure is because the inside water that pours into of water pocket, and the water can be laminated water pocket outer wall and mold core owner shell inner wall mutually when propping up the water pocket, because the water can absorb the heat, and the water passes through water pocket and mold core owner shell inner wall and laminates mutually to be favorable to accelerating the liquid material and solidify speed, improve the cooling effect, be favorable to improving production efficiency.

This precision engine cylinder block mold core structure convex top mould top is protruding form and identical with the recess inner structure of roof bottom to splice between convenient convex top mould and the roof, avoid taking place the position dislocation between convex top mould and the roof, and roof and convex top mould carry out fixed connection through the bolt, the later stage only need unscrew the bolt and can pull down convex top mould, make things convenient for later maintenance clearance and change.

Drawings

FIG. 1 is a schematic view of the internal structure of the present invention;

FIG. 2 is a schematic view of the three-dimensional structure of the convex top mold of the present invention;

fig. 3 is a schematic top view of the top plate of the present invention;

FIG. 4 is an enlarged schematic view of the structure at A of FIG. 1 according to the present invention;

fig. 5 is an enlarged schematic view of the structure at B in fig. 1 according to the present invention.

In the figure: 1. a top plate; 2. a groove; 3. a convex top die; 4. a threaded hole; 5. a bolt; 6. a mold core member; 601. a mold core main shell; 602. a telescopic auxiliary shell; 603. a soft iron sheet; 604. a card slot; 605. clamping the strip; 606. a water bladder; 7. a water inlet pipe; 8. a drain pipe; 9. draining pump; 10. and (5) a lower die.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides a technical solution: a precision engine cylinder body mold core structure comprises a top plate 1, a mold core component 6 and a lower mold 10, wherein a groove 2 is formed in the bottom of the top plate 1, a convex top mold 3 is arranged in the groove 2, the structural size of an inner opening of the groove 2 is identical to that of an outer opening of the top of the convex top mold 3, the upper surface of the convex top mold 3 is attached to the lower surface of the top plate 1, the top of the convex top mold 3 is convex and is identical to that of an inner structure of the groove 2 in the bottom of the top plate 1, so that the convex top mold 3 and the top plate 1 can be conveniently spliced, position dislocation between the convex top mold 3 and the top plate 1 is avoided, the attachment of the upper surface of the convex top mold 3 and the lower surface of the top plate 1 is favorable for improving the connection tightness between the convex top mold 3 and the top;

threaded holes 4 are formed in the periphery of the convex top die 3, bolts 5 penetrate through the threaded holes 4, the threaded holes 4 in the surface of the convex top die 3 are overlapped with the threaded holes 4 in the surface of the top plate 1, the convex top die 3 forms a detachable structure through the bolts 5 and the threaded holes 4 and the top plate 1, the threaded holes 4 in the surface of the convex top die 3 are overlapped with the threaded holes 4 in the surface of the top plate 1 when the convex top die 3 is clamped into the groove 2 in a protruding mode, at the moment, the convex top die 3 and the top plate 1 can be fixedly connected through tightening the bolts 5, the convex top die 3 can be detached only by screwing down the bolts 5 in the later stage, and later-stage maintenance, cleaning and replacement are facilitated;

the mold core component 6 is fixed at the bottom of the convex top mold 3, a water inlet pipe 7 is arranged on one side of the top surface of the convex top mold 3, the mold core component 6 comprises a mold core main shell 601, a telescopic auxiliary shell 602, a soft iron sheet 603, a clamping groove 604, a clamping strip 605 and a water sac 606, the telescopic auxiliary shell 602 is arranged in the mold core main shell 601, the soft iron sheet 603 is connected with the edge of the tail end of the telescopic auxiliary shell 602, the clamping groove 604 is arranged on the inner wall of the mold core main shell 601, the clamping strip 605 is arranged on the surface of the soft iron sheet 603, the water sac 606 is adhered on the inner surface of the soft iron sheet 603, the soft iron sheet 603 forms a clamping structure with the mold core main shell 601 through the clamping strip 605, the clamping structure is formed between the soft iron sheet 603 and the water sac 606, the soft iron sheet 603 is an elastic structure, the telescopic auxiliary shell 602 forms a telescopic structure with the water sac 606 through the soft iron sheet 603, the telescopic auxiliary shell 602 and the soft iron sheet 603 are in an integrated structure, until the clamping strip 605 on the surface of the soft iron sheet 603 is clamped into the clamping groove 604, the arrangement is favorable for positioning and fixing the telescopic auxiliary shell 602, thereby improving the fit between the telescopic auxiliary shell 602 and the mold core main shell 601, forming a complete mold core piece by the telescopic auxiliary shell 602 and the mold core main shell 601, pumping out the water in the water bag 606 by the drainage pump 9 at the later stage to shrink the water bag 606, shrinking the water bag 606 to withdraw the clamping strip 605 on the surface of the soft iron sheet 603 from the clamping groove 604 and carrying the telescopic auxiliary shell 602 to retract into the mold core main shell 601, thereby being beneficial to reducing the whole volume of the mold core piece, being convenient for taking out the mold core piece at the later stage, simultaneously avoiding scratching and wearing the lines on the inner wall of the cylinder body, the soft iron sheet 603 is of an elastic structure, so that the soft iron sheet can be conveniently clamped into or withdrawn from the clamping groove 604, and the telescopic auxiliary shell 602 and the soft iron sheet 603 are of a welding integrated structure, so that the firmness of connection between the telescopic auxiliary shell 602 and the soft iron sheet 603 is improved;

inlet tube 7 one side parallel distribution has

drain pipe

8, and 8 top connections of drain pipe have drain pump 9, lower mould 10 sets up in roof 1 below, drain pipe 8 runs through in convex top mould 3, roof 1 is inside, and drain pipe 8 is flexible structure, 8 tops of drain pipe run through in convex top mould 3, roof 1 is connected with drain pump 9, and the 8 other ends of drain pipe stretch into inside the water pocket 606, through drain pump 9, drain pipe 8 can be with the inside water discharge of water pocket 606, and drain pipe 8 is the plastic hose, it is flexible structure itself, avoid scraping broken water pocket 606 when being favorable to stretching into water pocket 606 inner wall bottom with drain pipe 8.

The working principle is as follows: when the precision engine cylinder body mold core structure is used, firstly, the convex top die 3 is clamped into the groove 2 in a convex manner, simultaneously, the threaded hole 4 on the surface of the convex top die 3 is coincided with the threaded hole 4 on the surface of the top plate 1, at the moment, the convex top die 3 is fixedly connected with the top plate 1 by screwing the bolt 5, then, the convex top die 3 is arranged at the bottom of the lower die 10, at the moment, the edge of the lower surface of the convex top die 3 is attached to the upper surface of the top of the lower die 10, then, liquid is injected into the water sac 606 through the water inlet pipe 7 to prop up the water sac 606 so that the soft iron sheet 603 carries the telescopic auxiliary shell 602 to extend outwards until the clamping strip 605 on the surface of the soft iron sheet 603 is clamped into the clamping groove 604, the arrangement is favorable for positioning and fixing the telescopic auxiliary shell 602, thereby improving the fit between the telescopic auxiliary shell 602 and the mold core main shell 601, and at the telescopic auxiliary shell 602 and the mold, at the moment, the mold core piece is positioned in the lower mold 10, a gap is reserved between the mold core piece and the inner wall of the lower mold 10, and then liquid materials are injected into the lower mold 10 and the bottom of the lower mold is waited to be cooled; because the water is injected into the water bag 606, the outer wall of the water bag 606 is attached to the inner wall of the mold core main shell 601 when the water bag 606 is supported by the water, and the water can absorb heat and is attached to the inner wall of the mold core main shell 601 through the water bag 606, so that the solidification speed of a liquid material is increased, the cooling effect is improved, and the production efficiency is improved; finally, the water in the water bag 606 can be discharged through the drainage pump 9 and the drainage pipe 8 to enable the water bag 606 to shrink, the water bag 606 shrinks to enable the clamping strips 605 on the surface of the soft iron sheet 603 to exit from the clamping grooves 604, and the telescopic auxiliary shell 602 is carried to retract into the main shell 601 of the mold core, so that the whole volume of the mold core piece is favorably reduced, the mold core piece is convenient to take out in the later period, meanwhile, the grains of the inner wall of the cylinder body are prevented from being scratched, and the model of the drainage pump 9 is CSSF-250.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a precision engine cylinder block mold core structure spare, includes roof (1), mold core component (6) and lower mould (10), its characterized in that: a groove (2) is formed in the bottom of the top plate (1), a convex top die (3) is arranged in the groove (2), threaded holes (4) are formed in the periphery of the convex top die (3), and bolts (5) penetrate through the threaded holes (4);

the mold core component (6) is fixed at the bottom of the convex top mold (3), a water inlet pipe (7) is arranged on one side of the top surface of the convex top mold (3), drain pipes (8) are distributed on one side of the water inlet pipe (7) in parallel, a drainage pump (9) is connected to the top of each drain pipe (8), and the lower mold (10) is arranged below the top plate (1).

2. The precision engine block core structure of claim 1, wherein: the structure size of the inner opening of the groove (2) is matched with that of the outer opening of the top of the convex top die (3), and the upper surface of the convex top die (3) is attached to the lower surface of the top plate (1).

3. The precision engine block core structure of claim 1, wherein: the threaded holes (4) in the surfaces of the convex top dies (3) and the threaded holes (4) in the surfaces of the top plates (1) are overlapped, and the convex top dies (3) and the top plates (1) form a detachable structure through bolts (5) and the threaded holes (4).

4. The precision engine block core structure of claim 1, wherein: the mold core component (6) comprises a mold core main shell (601), a telescopic auxiliary shell (602), a soft iron sheet (603), a clamping groove (604), clamping strips (605) and a water sac (606), wherein the telescopic auxiliary shell (602) is arranged inside the mold core main shell (601), the soft iron sheet (603) is connected to the edge of the tail end of the telescopic auxiliary shell (602), the clamping groove (604) is formed in the inner wall of the mold core main shell (601), the clamping strips (605) are arranged on the surface of the soft iron sheet (603), and the water sac (606) is bonded to the inner surface of the soft iron sheet (603).

5. The precision engine block core structure of claim 4, wherein: the soft iron sheet (603) forms a clamping structure with the mold core main shell (601) through the clamping strip (605), the clamping groove (604), and the soft iron sheet (603) is of an elastic structure.

6. The precision engine block core structure of claim 4, wherein: the telescopic auxiliary shell (602) and the water bag (606) form a telescopic structure through the soft iron sheet (603), and the telescopic auxiliary shell (602) and the soft iron sheet (603) form a welding integrated structure.

7. The precision engine block core structure of claim 1, wherein: the drain pipe (8) penetrates through the convex top die (3) and the top plate (1), and the drain pipe (8) is of a flexible structure.