CN210754992U

CN210754992U - Flange casting mould

Info

Publication number: CN210754992U
Application number: CN201921202232.XU
Authority: CN
Inventors: 李宏超; 陈彩焕
Original assignee: Yuzhou Hongli Casting Material Co ltd
Current assignee: Yuzhou Hongli Casting Material Co ltd
Priority date: 2019-07-29
Filing date: 2019-07-29
Publication date: 2020-06-16
Anticipated expiration: 2029-07-29

Abstract

The utility model provides a flange casting mould, is equipped with the recess on the external mold, is fixed with inner core assembly on the concave bottom, inner core assembly includes main core, and drawing of patterns subassembly includes two the same semicircle moulds, and fixed mounting has the rotating base in the one side of keeping away from inner core assembly on the semicircle mould, is equipped with the threaded hole that runs through on the lateral wall of external mold, runs through threaded hole and passes threaded rod, and threaded rod one end is rotated with the rotating base and is connected, and fixed mounting has the bull stick on the other end, install a plurality of compression cylinders on the lateral wall of external mold, the compression cylinder can make centre form and semicircle mould in close contact with, centre form, semicircle mould and end module cavity that forms together are the shape of flange. The casting demoulding device has the advantages that the labor intensity of a worker during demoulding of a casting can be greatly reduced, the production efficiency is improved, meanwhile, the potential safety hazard to workers can be reduced, and the casting demoulding device is simple in structure and convenient to use.

Description

Flange casting mould

Technical Field

The utility model relates to the technical field of mold, especially, relate to a flange casting mould.

Background

A flange, also known as a flange collar or flange. Flanges are parts for interconnecting pipes and are used for connecting pipe ends, and flanges are used for connecting equipment inlets and outlets, such as speed reducer flanges. The flange connection or flange joint is a detachable connection which is formed by connecting a flange, a gasket and a bolt with each other to form a group of combined sealing structures. The pipeline flange is a flange for piping in a pipeline device, and is used on equipment to be an inlet and outlet flange of the equipment. The flanges are provided with holes, and the two flanges are tightly connected through bolts. The flanges are sealed with gaskets. The flange is divided into a threaded connection (screw thread connection) flange, a welding flange and a clamping flange. The flanges are used in pairs, the low-pressure pipeline can be screwed with the flanges, and the flanges are welded under the pressure of more than four kilograms. And a sealing gasket is arranged between the two flanges and then is fastened by bolts. The flanges of different pressures have different thicknesses and they use different bolts. When the water pump and the valve are connected with a pipeline, the parts of the equipment and equipment are also made into corresponding flange shapes, which are also called flange connection. The connecting parts which are connected by using bolts at the peripheries of two planes and are closed at the same time are generally called flanges, and for example, the connecting parts of the ventilating duct can be called flange parts. The production process of the flange is generally divided into four types, the first type is forging and forging the flange, the flange is relatively the flange with the best quality and the highest price, the production process is different, the second type is casting the flange, and the cutting flange and the rolling flange are all the flanges with large caliber. The casting of the flange generally adopts a low-pressure casting process, the casting has the advantages that parts with complex shapes can be produced, particularly blanks with complex inner cavities and wide adaptability can be produced, metal materials commonly used in industry can be cast, the shapes and the sizes of the castings are very close to those of the parts, the cutting amount is reduced, and the method belongs to non-cutting machining. However, demolding is laborious after casting, a large amount of manual hard striking is needed for demolding, time and labor are wasted, the production efficiency is greatly reduced, and workers are easily injured in the striking process.

SUMMERY OF THE UTILITY MODEL

To the above situation, for overcoming the defect of prior art, the utility model aims at providing a flange casting mould, can put reduction workman's intensity of labour in the drawing of patterns, improve production efficiency, reduce the potential safety hazard to the staff to simple structure, convenient to use.

The solution is that, a flange casting mould, including external mold and centre form, be equipped with the recess on the external mold, be fixed with the inner core subassembly on the concave bottom, the inner core subassembly includes main core, and main core axis is perpendicular with the recess bottom, and the equipartition has a plurality of deputys around the main core, and the cover has the die block on the inner core subassembly, and the die block contacts with the bottom of recess, is equipped with two sets of the same drawing of patterns subassemblies above the die block, the drawing of patterns subassembly includes two the same semicircle moulds, and the semicircle mould opening is relative and with the coaxial line of main core, and fixed mounting has a rotating base on the one side of keeping away from the inner core subassembly on the semicircle mould, be equipped with the through thread hole that two the same and the relative level in position set up on the lateral wall of external mold, it has the threaded rod to pass in the through thread hole, and threaded rod one end is rotated with the, the base of the compression cylinder is fixed on the side wall of the outer die, the piston rod of the compression cylinder is fixedly connected with the inner die, the compression cylinder can enable the inner die to be in close contact with the semicircular die, the cross section of the inner die is a boss in a convex shape, a cavity formed by the inner die, the semicircular die and the bottom die together is in a flange shape, and the inner die is provided with a material injection hole and an air outlet hole.

Preferably, the handles are rotatably mounted at two ends of the rotating rod, the torsional spring is mounted at the rotating connection position of the rotating rod and the handles, and the driving direction of the torsional spring is the direction in which the handles are rotated back to the outer die.

Preferably, the thickness of the inner mold is equal to the thickness of the bottom of the outer mold plus the thickness of the bottom mold.

Preferably, the bottom of the groove is provided with a plurality of knocking holes, and the knocking holes are formed in the projection of the bottom die on the bottom of the groove.

The utility model has the advantages that: the casting demoulding device has the advantages that the labor intensity of a cast worker can be reduced when the casting is demoulded, the production efficiency is effectively improved, the potential safety hazard to workers is reduced, the structure is simple, the use is convenient, and the later maintenance cost is low.

Drawings

Fig. 1 is a schematic front structural view of the present invention.

Fig. 2 is a schematic top view of the present invention.

Detailed Description

The following describes the embodiments of the present invention in further detail with reference to the accompanying drawings.

By figure 1 and figure 2, a flange casting mould, includes external mold 1 and centre form 2, its characterized in that, be equipped with recess 3 on external mold 1, be fixed with the inner core subassembly on the bottom of recess 3, the inner core subassembly includes main core 4, and main core 4 axis is perpendicular with recess 3 bottom, and the equipartition has a plurality of vice cores 13 around main core 4, and the cover has die block 5 on the inner core subassembly, and die block 5 contacts with the bottom of recess 3, is equipped with two sets of the same drawing of patterns subassemblies above die block 5, the drawing of patterns subassembly includes two the same semicircle moulds 6, and two semicircle moulds 6 openings are relative and with the coaxial line of main core, and fixed mounting has rotating base 7 on the one side of keeping away from the inner core subassembly on semicircle mould 6, be equipped with two the same and the relative level in position set up on the lateral wall of external mold 1 and run through threaded hole 8, it has threaded rod 9 to pass in the run through threaded rod 8, fixed mounting has bull stick 10 on the other end, install a plurality of compression cylinders 11 on the lateral wall of external mold 1, the base of compression cylinder 11 is fixed on the lateral wall of external mold 1, and the piston rod and the interior mould 2 fixed connection of compression cylinder 11, compression cylinder 11 can make interior mould 2 and semicircle mould 6 in close contact with, the cross section of interior mould 2 is the boss of "protruding" shape, the cavity that interior mould 2, semicircle mould 6 and die block 5 combination formed together is the shape of flange, be equipped with notes material hole 14 and venthole 12 on the interior mould 2.

When the device is used, firstly, the bottom die 5 is sleeved on the inner core assembly, the inner core comprises the main core 4 and the auxiliary core 13, the diameter of the through hole and the pipeline hole of the cast flange can be changed according to the production requirement, so that the device can adapt to the production requirement, meanwhile, the problem that the subsequent punching needs to be carried out is solved, the production efficiency is improved through one-step forming, the inner core assembly is fixed at the bottom of the groove 3 of the outer die 1, the error is avoided, the waste of raw materials is avoided, the two semicircular dies 6 are close to each other and clamped through the screw rod 9 after the bottom die 5 is sleeved on the inner core assembly, the semicircular dies 6 are arranged above the bottom die 5, a disc cavity is formed between the two semicircular dies 6, the screw thread has the locking function, the situation that the two semicircular dies 6 move in the casting process, the defective goods are caused is avoided, and the production efficiency is improved, after the two semicircular dies 6 are tightly closed, the inner die is placed on the outer die 1, the compression cylinder 11 is tightened, the inner die 2 moves downwards, a cavity is formed among the inner die 2, the bottom die 5 and the two semicircular dies 6, the shape of the cavity is the shape of a required flange, then the material is injected through the injection port 14, air in the cavity is exhausted through the air outlet hole 12 during the material injection, the phenomenon of bubbles caused in the casting process is avoided, the quality of the flange is reduced, the service life is shortened, the flange in the cavity is formed through cooling after the material injection, the compression cylinder 11 is lifted at the moment, the inner die 2 is separated from the outer die 1, then the two semicircular dies 6 are separated through the rotating rod 10, the periphery of the flange plate is not limited, the demolding difficulty is reduced, the demolding difficulty of workers is greatly reduced, and the flange cylindrical surface cannot be exposed when the traditional die is used, the device has the advantages that the demoulding difficulty is greatly increased, the structure is adopted, the structure is simple, the use is convenient, the demoulding difficulty can be greatly reduced, and the production efficiency is improved.

The handle 16 is installed all to the both ends of bull stick 10 rotation, and the torsional spring is installed to the rotation junction of bull stick 10 and handle 16, the drive direction of torsional spring is for making handle 16 to the direction of keeping away from the external mold 1 pivoted.

When the semi-circular die needs to be moved, the handle is rotated out, the force application distance can be increased, the labor intensity of workers is saved according to the lever principle, and when the semi-circular die does not need to be moved, the handle can be rotated in the direction back to the outer die by the torsion spring and is tightly attached to the rotating rod, so that the space is saved, and the flexibility of the device is improved.

The thickness of the inner die 2 is equal to the thickness of the bottom of the outer die 1 plus the thickness of the bottom die 5.

Thus, when cooling, the external mold 1 can uniformly radiate heat, local heat accumulation can not be generated, and all parts of the flange can uniformly radiate heat. Ensure even cooling and avoid injury to workers when the flange is taken out.

The bottom of the groove 3 is provided with a plurality of knocking holes 15, and the knocking holes 15 are formed in the projection of the bottom die 5 on the bottom of the groove 3.

The bottom of the groove 3 is provided with the knocking hole 15, the bottom die 5 can be knocked through the knocking hole 15 in the demolding process, the bottom die 5 is effectively separated from the bottom of the groove 3, the casting is prevented from being difficult to demold due to the inner core assembly, and the production efficiency is improved.

The above-mentioned embodiments are not intended to limit the scope of the present invention, and various modifications and improvements made by those skilled in the art without departing from the design concept of the present invention should be included in the protection scope defined by the claims of the present invention.

Claims

1. The utility model provides a flange casting mould, includes external mold (1) and centre form (2), its characterized in that, be equipped with recess (3) on external mold (1), be fixed with the inner core subassembly on the bottom of recess (3), the inner core subassembly includes main core (4), and main core (4) axis is perpendicular with recess (3) bottom, and the equipartition has a plurality of vice cores (13) around main core (4), and the cover has die block (5) on the inner core subassembly, and die block (5) and the bottom contact of recess (3), die block (5) top are equipped with two sets of the same drawing of patterns subassemblies, the drawing of patterns subassembly includes two the same semicircle moulds (6), and two semicircle moulds (6) openings are relative and with the coaxial line of main core, and fixed mounting has rotating base (7) in the one side of keeping away from the inner core subassembly on semicircle mould (6), be equipped with two the same and the relative level in position on the lateral wall of external mold (1) and set, run through threaded hole (8) interior threaded rod (9) of passing, threaded rod (9) one end is rotated with rotating base (7) and is connected, and fixed mounting has bull stick (10) on the other end, install a plurality of compression jar (11) on the lateral wall of external mold (1), the base of compression jar (11) is fixed on the lateral wall of external mold (1), the piston rod and interior mould (2) fixed connection of compression jar (11), compression jar (11) can make centre form (2) and semicircle mould (6) in close contact with, the cross section of centre form (2) is the boss of "protruding" shape, the cavity that centre form (2), semicircle mould (6) and die block (5) combination formed together is the shape of flange, be equipped with on centre form (2) and annotate material hole (14) and venthole (12).

2. A flange casting mould according to claim 1, characterized in that handles (16) are rotatably mounted at both ends of the rotating rod (10), a torsion spring is mounted at the rotating connection position of the rotating rod (10) and the handles (16), and the driving direction of the torsion spring is the direction that the handles (16) rotate away from the outer mould (1).

3. A flange casting mould according to claim 1, characterized in that the thickness of the inner mould (2) is equal to the thickness of the bottom of the outer mould (1) plus the thickness of the bottom mould (5).

4. A flange casting mold according to claim 1, characterized in that a plurality of striking holes (15) are provided on the bottom of the groove (3), and the striking holes (15) are provided on the projection of the bottom mold (5) on the bottom of the groove (3).