CN219746254U - Investment mold bundling core of core-pulling structure - Google Patents

Abstract

The utility model relates to the technical field of investment molds and discloses an investment mold bundling core with a core-pulling structure, which comprises a core-pulling block, straight-flap blocks and inclined-flap blocks, wherein plugging rails are fixedly arranged at the axle centers of four sides of the core-pulling block, plugging grooves are formed in the positions, corresponding to the plugging rails, of the straight-flap blocks, the straight-flap blocks are arranged on the four sides of the core-pulling block, and the inclined-flap blocks are clamped between the two straight-flap blocks.

Description

Investment mold bundling core of core-pulling structure

Technical Field

The utility model relates to the technical field of investment molds, in particular to an investment mold bundling core with a core-pulling structure.

Background

Investment casting is also known as "lost wax casting". Investment casting generally refers to a casting scheme in which a pattern is made of fusible materials, a plurality of layers of refractory materials are coated on the surface of the pattern to make a molded shell, and then the pattern is melted and discharged out of the molded shell, so that a casting mold without parting surfaces is obtained, and sand filling and casting can be performed after high-temperature roasting. Because patterns are widely manufactured from waxy materials, investment casting is often referred to as "lost wax casting," and because the resulting cast article has a high dimensional accuracy and surface finish, it is also referred to as "investment precision casting.

In the process of manufacturing the investment, the method of pressing and molding the pasty mold material by pressure is mostly adopted in the production process of manufacturing the investment. Prior to pressing the pattern, a thin layer of parting agent is applied to the surface of the pattern to remove the pattern from the pattern. When the wax matrix is pressed, the parting agent can be engine oil, pine oil and the like; when the resin matrix is pressed, mixed liquid of sesame oil and alcohol or silicone oil is commonly used as parting agent. The thinner the parting agent layer is, the better the parting agent layer is, so that the investment pattern can better replicate the profiling surface, and the surface smoothness of the investment pattern is improved. There are three methods of pressing the investment, plunger pressurization, air pressure and piston pressurization.

The assembly process of the investment pattern is finished after manufacturing, but the prior art is mostly solved by adopting a welding method, namely, sheet-shaped lattice iron is used, the connecting parts of the investment patterns which cannot be manufactured separately through core pulling and demolding are welded together, but the difference between the welding dies cannot be avoided when the welding dies are produced in batches, the precision of the dies is influenced, the uniformity among the dies in batches is influenced, sand is easy to clamp when the welding lines are detached, and the use is influenced.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides an investment mold bundling core with a core-pulling structure, which solves the problems.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides an investment mold core tied in a bundle of structure of loosing core, includes loose core piece, straight lamella piece and oblique lamella piece, the equal fixed mounting in four sides axle center department of loose core piece has the joint rail, and a plurality of straight lamella piece corresponds the position of joint rail and has all seted up the spliced groove, and a plurality of groups straight lamella piece all sets up on the four sides of loose core piece, oblique lamella piece is installed to joint between two sets of straight lamella pieces.

Preferably, the axis of the core pulling block is provided with a stabilizing groove, the stabilizing groove is internally provided with a plurality of groups of fixing structures, a plurality of inserting rails are provided with extending grooves corresponding to the fixing structures, and the inserting grooves are provided with clamping grooves corresponding to the extending grooves.

Preferably, the fixed knot constructs including hinged plate, spring and fixture block, hinged plate articulates the lower extreme of installing at the extension groove, fixed mounting has the spring on the loose core piece, the other end fixed mounting of spring has the fixture block, the fixture block extends extension groove and joint groove looks joint.

Preferably, the rear ends of the core pulling block, the straight valve block and the inclined valve block are provided with annular grooves, the annular grooves are sleeved with rubber rings, the diameters of the rubber rings are smaller than the diameters of the core pulling block, the straight valve block and the inclined valve block, and the rubber rings are made of deformable rubber.

Preferably, the inner clamping of the stabilizing groove is provided with an ejector rod, and the fixed structures are fixed to be clamped with the clamping groove through the ejector rod.

Compared with the prior art, the utility model provides the investment mold bundling core with the core-pulling structure, which has the following beneficial effects:

1. the investment mold bundling core of the core-pulling structure enables the bundling core to be minimum in installation time gap through the mutual matching between the plugging rail and the plugging groove, so that the influence on the quality of a later-stage finished product is avoided, and the assembly and the disassembly are rapid and convenient.

2. The investment mold bundling core of the core-pulling structure is connected with the clamping groove through the fixing structure, so that the mold is prevented from loosening and falling off due to vibration and other problems during installation, the use during processing is affected, and the fixing structure is extruded and ejected through the ejector rod, so that the investment mold bundling core is more convenient to use.

3. The investment mold bundling core of the core-pulling structure is fixed through the rubber ring after the mold clamping is completed through the cooperation between the annular groove and the rubber ring, so that the stability of the mold before the disassembly is ensured, and the investment mold bundling core is more practical.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic diagram of the split structure of the utility model;

fig. 3 is a schematic view of the fixing structure of the utility model.

In the figure: 1. a core pulling block; 2. straight segment blocks; 3. oblique valve blocks; 4. a plug-in rail; 5. a plug-in groove; 6. a stabilizing groove; 7. a fixed structure; 8. an extension groove; 9. a clamping groove; 10. a hinged plate; 11. a spring; 12. a clamping block; 13. a ring groove; 14. a rubber ring; 15. and an ejector rod.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-3, an investment mold bundling core of a core-pulling structure comprises a core-pulling block 1, straight-flap blocks 2 and inclined-flap blocks 3, wherein plug-in rails 4 are fixedly installed at the axle centers of four sides of the core-pulling block 1, plug-in grooves 5 are formed in positions, corresponding to the plug-in rails 4, of the straight-flap blocks 2, the straight-flap blocks 2 are arranged on four sides of the core-pulling block 1, and the inclined-flap blocks 3 are installed between the two straight-flap blocks 2 in a clamping manner.

Further, the axle center department of piece 1 of loosing core has offered stable groove 6, and stable groove 6's inside is provided with a plurality of groups fixed knot constructs 7, and extending groove 8 has all been offered to the position that a plurality of spliced tracks 4 correspond fixed knot constructs 7, and clamping groove 9 has been offered to the position that spliced groove 5 corresponds extending groove 8, when using, through the connection between fixed knot constructs 7 and clamping groove 9, ensures when the installation that the mould can not lead to loose droing because of vibrations scheduling problem, influences the use during processing.

Further, the fixed knot constructs 7 include the articulated slab 10, spring 11 and fixture block 12, articulated installation of articulated slab 10 is at the lower extreme of extending groove 8, fixed mounting has spring 11 on the loose core piece 1, the other end fixed mounting of spring 11 has fixture block 12, fixture block 12 extends extending groove 8 and joint groove 9 looks joint, when using, ejector rod 15 extrudees articulated slab 10 to the inside ejection of extending groove 8, the ejecting fixture block 12 and the joint groove 9 looks joint that drive spring 11 connects of articulated slab 10, ensure the holistic stability of mould, and when dismantling, only need take out ejector rod 15, the spring can backward extrude articulated slab 10, drive fixture block 12 and drop from joint groove 9 inside, thereby accomplish the dismantlement, it is simple and convenient to use.

Further, the annular groove 13 is formed in the rear ends of the core pulling block 1, the straight valve block 2 and the inclined valve block 3, the annular groove 13 is sleeved with the rubber ring 14, the diameter of the rubber ring 14 is smaller than that of the core pulling block 1, the straight valve block 2 and the inclined valve block 3, the rubber ring 14 is made of deformable rubber, the rubber ring 14 can be fixed through the rubber ring 14 after the die clamping is completed through the cooperation between the annular groove 13 and the rubber ring 14, and the stability of the die before the disassembly is ensured, so that the die is more practical.

Further, the inner clamping of the stabilizing groove 6 is provided with an ejector rod 15, and the plurality of groups of fixing structures 7 are fixedly clamped with the clamping groove 9 through the ejector rod 15.

Working principle: when the die is used, the die is firstly installed according to the sequence of the core pulling block 1, the straight valve block 2 and the inclined valve block 3, then the rubber ring 14 is placed in the annular groove 13, then the die is installed at a designated position, then the ejector rod 15 is inserted along the stabilizing groove 6, the ejector rod 15 extrudes the hinged plate 10 to eject towards the inside of the extension groove 8, the hinged plate 10 ejects the clamping block 12 connected with the driving spring 11 to be clamped with the clamping groove 9, the integral stability of the die is ensured, and when the die is disassembled, only the ejector rod 15 needs to be pulled out, the spring can backwards extrude the hinged plate 10 to drive the clamping block 12 to drop from the inside of the clamping groove 9, so that the disassembly is completed, then the core pulling block 1 is pulled out, then any valve block 2 on four sides is pulled out, the integral disassembly of the bundling core can be completed in sequence, the integral removal is realized under the condition that the die is not influenced, and the die is more convenient to use.

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

Claims (5)

1. The utility model provides an investment mold core tied in a bundle of structure of loosing core, includes core block (1), straight lamella piece (2) and oblique lamella piece (3), its characterized in that, the equal fixed mounting in four sides axle center department of core block (1) has plug rail (4), a plurality of plug groove (5) have all been seted up to the position that straight lamella piece (2) corresponds plug rail (4), a plurality of groups straight lamella piece (2) all set up on the four sides of core block (1), oblique lamella piece (3) are installed to the joint between two sets of straight lamella pieces (2).

2. The investment mold bundling core with a core-pulling structure according to claim 1, wherein: the core pulling block is characterized in that a stabilizing groove (6) is formed in the axis of the core pulling block (1), a plurality of groups of fixing structures (7) are arranged in the stabilizing groove (6), extension grooves (8) are formed in positions, corresponding to the fixing structures (7), of the plug-in rails (4), and clamping grooves (9) are formed in positions, corresponding to the extension grooves (8), of the plug-in grooves (5).

3. The investment mold bundling core of a core-pulling structure according to claim 2, wherein: the fixing structure (7) comprises a hinged plate (10), a spring (11) and a clamping block (12), wherein the hinged plate (10) is hinged to the lower end of the extension groove (8), the spring (11) is fixedly installed on the core pulling block (1), the clamping block (12) is fixedly installed at the other end of the spring (11), and the clamping block (12) extends out of the extension groove (8) to be clamped with the clamping groove (9).

4. The investment mold bundling core with a core-pulling structure according to claim 1, wherein: the novel core pulling device is characterized in that ring grooves (13) are formed in the rear ends of the core pulling block (1), the straight valve block (2) and the inclined valve block (3), rubber rings (14) are sleeved on the ring grooves (13), the diameter of each rubber ring (14) is smaller than the diameter of the combination of the core pulling block (1), the straight valve block (2) and the inclined valve block (3), and each rubber ring (14) is made of deformable rubber.

5. The investment mold bundling core of a core-pulling structure according to claim 2, wherein: an ejector rod (15) is arranged in the stabilizing groove (6) in a clamping mode, and a plurality of groups of fixing structures (7) are clamped with the clamping groove (9) through the ejector rod (15).