CN219188550U

CN219188550U - Sand core structure with high dimensional accuracy

Info

Publication number: CN219188550U
Application number: CN202123031009.3U
Authority: CN
Inventors: 张柏云; 张柏芳; 李岚鑫
Original assignee: Fuqing Xiangsheng Casting Material Co ltd
Current assignee: Fuqing Xiangsheng Casting Material Co ltd
Priority date: 2021-12-06
Filing date: 2021-12-06
Publication date: 2023-06-16
Anticipated expiration: 2031-12-06

Abstract

The utility model discloses a sand core structure with high dimensional accuracy, which comprises a base, wherein a driving mechanism is arranged in an inner cavity of the base, the top of the driving mechanism is fixedly connected with a sand core main body through a sliding rod, the sand core main body consists of a left sand core and a right sand core, semicircular feeding holes are formed in the tops of the left sand core and the right sand core, casting cavities and cooling cavities are formed in the inner cavities of the left sand core and the right sand core, the driving mechanism can drive the left sand core and the right sand core to relatively move or deviate from each other through the driving mechanism, the left sand core and the right sand core are convenient to disassemble and assemble, casting operation is convenient, casting liquid can be timely cooled through filling cold water into the inner cavity of the cooling cavity through a water inlet and a water outlet, product quality can be improved, heat transfer can be accelerated through the heat dissipation fins, water cooling efficiency can be improved, heat dissipation cooling performance is good, and product quality can be effectively improved.

Description

Sand core structure with high dimensional accuracy

Technical Field

The utility model relates to a sand core structure with high dimensional accuracy, and belongs to the technical field of casting.

Background

The sand casting is a casting method for producing castings in a sand mold, steel, iron and most nonferrous alloy castings can be obtained by the sand casting method, and because the molding materials used in the sand casting are cheap and easy to obtain, the casting mold is simple and convenient to manufacture, single-piece production, batch production and mass production of the castings can be adapted to the basic process in casting production for a long time, the sand core structure is mainly used for forming the structure of the castings in the casting process, the integral structure of the sand core structure can have great influence on the performance of the castings, the casting difficulty of the products is also increased along with the increasing complexity of the casting structure, particularly for the castings with larger wall thickness, when the heat dissipation of a casting cavity is poor, casting liquid cannot be cooled in time, shrinkage porosity and air hole defects are easy to appear on the cavity wall, and once the defects appear, the product quality can only be scrapped when the defects are seriously affected.

Disclosure of Invention

The utility model aims to overcome the existing defects, and provides the sand core structure with high dimensional accuracy, which has good heat dissipation and cooling performance, can effectively improve the product quality, can drive the left sand core and the right sand core to relatively move or deviate from each other by arranging the driving mechanism, is convenient for disassembling and assembling the left sand core and the right sand core, is convenient for casting operation, can timely cool casting liquid by filling cold water into the inner cavity of the cooling cavity through the water inlet and the water outlet, can improve the product quality, can accelerate heat transfer by arranging the heat dissipation fins, can improve the water cooling efficiency, and can effectively solve the problems in the background art.

In order to solve the technical problems, the utility model provides the following technical scheme:

the utility model provides a high dimensional accuracy's psammitolite structure, includes the base, the base inner chamber is equipped with actuating mechanism, slide bar fixedly connected with psammitolite main part is passed through at the actuating mechanism top, the psammitolite main part comprises left psammitolite and right psammitolite, semicircular feed inlet has all been seted up at left psammitolite and right psammitolite top, left psammitolite and right psammitolite inner chamber all are equipped with foundry goods die cavity and cooling chamber, the fixed radiating fin that is equipped with of cooling chamber inner chamber equidistance, left psammitolite and right psammitolite bottom one side and top all are fixed and are equipped with water inlet and delivery port.

As a further description of the technical scheme, the water inlet and the water outlet are respectively provided with a connecting flange.

As further description of the technical scheme, the top of the base is provided with a guide chute, and the sliding rod penetrates through the inner cavity of the guide chute.

As further description of the technical scheme, the damping foot pads are symmetrically and fixedly arranged at the bottom of the base.

As further description of the technical scheme, the driving mechanism comprises a driving motor, the driving motor is connected with a driving rod through a transmission shaft, the driving rod is rotatably arranged in the inner cavity of the base through a rotating shaft, and a driving screw sleeve is sleeved on the outer side of the driving rod.

As a further description of the above technical solution, the driving rod includes a connecting rod, two ends of the connecting rod are respectively and fixedly provided with a first threaded rod and a second threaded rod, and the directions of threads on the first threaded rod and the second threaded rod are opposite.

The utility model has the beneficial effects that: 1. by arranging the driving mechanism, the driving mechanism can drive the left sand core and the right sand core to relatively move or deviate from each other, so that the left sand core and the right sand core can be conveniently disassembled and assembled, and casting operation is facilitated;

2. the casting liquid can be cooled in time by filling cold water into the inner cavity of the cooling cavity through the water inlet and the water outlet, the product quality can be improved, and the heat transfer can be accelerated by arranging the heat radiating fins, so that the water cooling efficiency can be improved.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model.

FIG. 1 is a block diagram of a high dimensional accuracy sand core structure of the present utility model.

Fig. 2 is a cross-sectional view of a high dimensional accuracy sand core structure of the present utility model.

Fig. 3 is a cross-sectional view of a core body of a high dimensional accuracy core structure of the present utility model.

Fig. 4 is a structural diagram of a driving mechanism of a sand core structure with high dimensional accuracy according to the present utility model.

Reference numerals in the drawings: 1. a base; 2. a driving mechanism; 3. a slide bar; 4. a sand core body; 5. a left sand core; 6. a right sand core; 7. a semicircular feed inlet; 8. casting cavity; 9. a cooling chamber; 10. a heat radiation fin; 11. a water inlet; 12. a water outlet; 13. a guide chute; 14. damping foot pads; 15. a driving motor; 16. a driving rod; 17. driving the screw sleeve; 18. a connecting rod; 19. a first threaded rod; 20. and a second threaded rod.

Detailed Description

The preferred embodiments of the present utility model will be described below with reference to the accompanying drawings, it being understood that the preferred embodiments described herein are for illustration and explanation of the present utility model only, and are not intended to limit the present utility model.

Referring to fig. 1-4, the present utility model provides a technical solution: the utility model provides a high dimensional accuracy's psammitolite structure, includes base 1, base 1 inner chamber is equipped with actuating mechanism 2, actuating mechanism 2 top is through slide bar 3 fixedly connected with psammitolite main part 4, psammitolite main part 4 comprises left psammitolite 5 and right psammitolite 6, semicircular feed inlet 7 has all been seted up at left psammitolite 5 and right psammitolite 6 top, left psammitolite 5 and right psammitolite 6 inner chamber all are equipped with foundry goods die cavity 8 and cooling chamber 9, the fixed radiating fin 10 that is equipped with of cooling chamber 9 inner chamber equidistance, radiating fin 10 can accelerate heat transfer, can improve the efficiency of water-cooling, and left psammitolite 5 and right psammitolite 6 bottom one side and top are all fixed to be equipped with water inlet 11 and delivery port 12, charge into cold water through water inlet 11 and delivery port 12 to cooling chamber 9 inner chamber and can in time cool down the casting liquid, can improve product quality.

Specifically, as shown in fig. 1-3, the end parts of the water inlet 11 and the water outlet 12 are respectively provided with a connecting flange, the water inlet 11 and the water outlet 12 can be connected with a water pipe through the connecting flanges, the top of the base 1 is provided with a guide chute 13, the sliding rod 3 penetrates through the inner cavity of the guide chute 13, the guide chute 13 can guide and limit the sliding rod 3, shaking of the sliding rod 3 during moving can be avoided, and the bottom of the base 1 is symmetrically and fixedly provided with damping foot pads 14.

Specifically, as shown in fig. 4, the driving mechanism 2 includes a driving motor 15, the driving motor 15 is connected with a driving rod 16 through a transmission shaft, the driving rod 16 is rotatably disposed in an inner cavity of the base 1 through a rotation shaft, a driving screw sleeve 17 is sleeved outside the driving rod 16, the driving rod 16 includes a connecting rod 18, two ends of the connecting rod 18 are respectively fixedly provided with a first threaded rod 19 and a second threaded rod 20, the directions of threads on the first threaded rod 19 and the second threaded rod 20 are opposite, the driving motor 15 can drive the driving rod 16 to rotate, the driving rod 16 can control two groups of driving screw sleeves 17 sleeved outside the driving rod 16 to relatively move or deviate from moving, and then the left sand core 5 and the right sand core 6 can be driven to relatively move or deviate from moving, and the left sand core 5 and the right sand core 6 can be disassembled and assembled.

The working principle of the utility model is as follows: the driving motor 15 can drive the driving rod 16 to rotate, the driving rod 16 can control the two groups of driving screw sleeves 17 sleeved outside the driving rod to move relatively or deviate from the driving screw sleeves, and then the left sand core 5 and the right sand core 6 can be driven to move relatively or deviate from the driving screw sleeves, the left sand core 5 and the right sand core 6 can be assembled and disassembled, the water inlet 11 and the water outlet 12 are connected with a water pipe through a connecting flange, cold water can be filled into the inner cavity of the cooling cavity 9 through the water inlet 11 and the water outlet 12 to cool casting liquid in time, the heat dissipation fins 10 can accelerate heat transfer, and the water cooling efficiency can be improved.

The above is a preferred embodiment of the present utility model, and a person skilled in the art can also make alterations and modifications to the above embodiment, therefore, the present utility model is not limited to the above specific embodiment, and any obvious improvements, substitutions or modifications made by the person skilled in the art on the basis of the present utility model are all within the scope of the present utility model.

Claims

1. The utility model provides a high dimensional accuracy's psammitolite structure, includes base (1), its characterized in that: the utility model discloses a novel sand core structure, including base (1), slide bar (3), base (1), cooling chamber (9), left sand core (5), right sand core (6), left sand core (5) and right sand core (6) top all have seted up semicircular feed inlet (7), left sand core (5) and right sand core (6) inner chamber all are equipped with foundry goods die cavity (8) and cooling chamber (9), cooling chamber (9) inner chamber equidistance is fixed to be equipped with radiating fin (10), and left sand core (5) and right sand core (6) bottom one side and top all are fixed and are equipped with water inlet (11) and delivery port (12).

2. A high dimensional accuracy sand core structure according to claim 1, wherein: the end parts of the water inlet (11) and the water outlet (12) are respectively provided with a connecting flange.

3. A high dimensional accuracy sand core structure according to claim 2, wherein: the top of the base (1) is provided with a guide chute (13), and the sliding rod (3) is arranged in the inner cavity of the guide chute (13) in a penetrating way.

4. A high dimensional accuracy sand core structure according to claim 3, wherein: damping foot pads (14) are symmetrically and fixedly arranged at the bottom of the base (1).

5. The high dimensional accuracy sand core structure of claim 4 wherein: the driving mechanism (2) comprises a driving motor (15), the driving motor (15) is connected with a driving rod (16) through a transmission shaft, the driving rod (16) is rotatably arranged in an inner cavity of the base (1) through a rotation shaft, and a driving screw sleeve (17) is sleeved on the outer side of the driving rod (16).

6. The high dimensional accuracy sand core structure of claim 5, wherein: the driving rod (16) comprises a connecting rod (18), a first threaded rod (19) and a second threaded rod (20) are fixedly arranged at two ends of the connecting rod (18) respectively, and the directions of threads on the first threaded rod (19) and the second threaded rod (20) are opposite.