CN112371955A

CN112371955A - High-pressure heating sand casting device

Info

Publication number: CN112371955A
Application number: CN202011244811.8A
Authority: CN
Inventors: 戈应龙
Original assignee: Hanshan Longyu Casting Factory
Current assignee: Hanshan Longyu Casting Factory
Priority date: 2020-11-10
Filing date: 2020-11-10
Publication date: 2021-02-19

Abstract

The invention discloses a high-pressure heating sand casting device, which belongs to the technical field of sand casting and comprises a fixed plate, four vertical rods, four high-pressure heating assemblies and four clamping and fixing assemblies, wherein the bottom of the fixed plate is fixedly provided with the four supporting rods, the vertical rods are fixedly arranged at the upper end of the fixed plate, the vertical rods are symmetrically arranged around the middle part of the fixed plate, the lifting assemblies are connected inside the vertical rods in a sliding manner, the high-pressure heating assemblies are fixedly arranged between the two lifting assemblies, the four clamping and fixing assemblies are fixedly arranged at the upper end of the fixed plate, and the four clamping and fixing assemblies are respectively positioned at; the device drives the screw rod to rotate through the motor, can control the fixed frame to adjust up and down, and is convenient for unloading and installing the sand mold when the sand mold needs to be replaced and heated; meanwhile, the internal air pressure can be controlled through the pressure valve, the internal air pressure can be controlled to be an optimal value, the optimal pressure value for sand mold heating is ensured, and the mold manufacturing quality is improved.

Description

High-pressure heating sand casting device

Technical Field

The invention belongs to the technical field of sand casting, and particularly relates to a high-pressure heating sand casting device.

Background

Sand casting refers to a casting method for producing castings in sand, steel, iron and most nonferrous alloy castings can be obtained by the sand casting method, and because the molding materials used for sand casting are cheap and easy to obtain, the casting mold is simple and convenient to manufacture, and can adapt to single-piece production, batch production and mass production of the castings, the sand casting is a basic process in casting production for a long time.

However, in the existing sand casting device, the temperature and pressure cannot be increased in the casting process, so that the casting requirements cannot be met when some special metal materials are cast, the performance of the cast product is not perfect, the cast mould cannot be replaced, and when people need to replace the cast product, the whole casting device needs to be replaced, and the casting device is wasted.

Therefore, how to design a high-pressure heating sand casting device becomes a problem to be solved currently.

Disclosure of Invention

The invention aims to provide a high-pressure heating sand casting device which is used for controllably heating a sand mold at high pressure.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a high pressure intensification sand casting device, this high pressure intensification sand casting device include fixed plate, montant, high pressure components of heating, the fixed subassembly of centre gripping, the fixed plate bottom is fixed with the bracing piece, and the bracing piece is equipped with four altogether, and the fixed plate upper end is fixed with the montant, and the montant sets up about fixed plate middle part symmetry, and montant inside sliding is connected with lifting unit, fixes between two lifting unit high pressure components of heating, centre gripping fixed subassembly are fixed in the fixed plate upper end, are equipped with four altogether, are located four corners of fixed plate respectively.

Preferably, the lifting unit includes the sliding block of connection in the inside of montant that slides, and the inside threaded connection of sliding block has first adjusting screw, and the first adjusting screw top is rotated and is connected at the montant top, and the fixed plate is worn out to establish in the bottom, and the end that stretches out is fixed with the motor.

Adopt above-mentioned scheme: the motor drives the screw rod to rotate, the fixing frame can be controlled to be adjusted up and down, and the sand mold can be conveniently unloaded and installed when the sand mold needs to be replaced and heated.

Preferably, high pressure rising temperature subassembly is fixed with the heating tube including fixing the fixed frame between two sliding blocks, fixed frame inside, and the outside cladding of heating tube has the insulating tube, and the insulating tube is fixed on fixed frame inner wall, is equipped with a plurality ofly along fixed frame direction of height, and fixed frame upper end still is fixed with the ooze valve, and the ooze valve is equipped with a plurality ofly along fixed frame length direction.

Adopt above-mentioned scheme: carry out electrical heating through the intensification pipe, the inside atmospheric pressure of fixed frame risees when heating, and through the steerable inside atmospheric pressure size of loading valve, steerable inside atmospheric pressure is the optimal value simultaneously, ensures the best pressure value of sand mould heating, improves mould preparation quality.

Preferably, one end of the heat preservation pipe is fixedly connected with the liquid inlet, the other end of the heat preservation pipe is connected with the liquid outlet, and the liquid inlet and the liquid outlet are both fixed at the upper end of the fixing frame.

Preferably, an air pressure detector is further fixed at the upper end of the fixing frame.

Adopt above-mentioned scheme: can the inside atmospheric pressure of fixed frame of audio-visual detection, prevent that atmospheric pressure is too high, cause the damage to the sand mould.

Preferably, the fixed subassembly of centre gripping is including fixing fixed block on the fixed plate, and fixed block internal thread connects has second adjusting screw, and second adjusting screw one end is fixed with the regulating block, and the other end is fixed with the connecting rod, is fixed with the grip block on the connecting rod inner wall.

Adopt above-mentioned scheme: the grip blocks rotate through the adjusting blocks, the drive screw rotates to be adjusted, the distances among the four grip blocks can be conveniently adjusted, and the grip blocks are convenient for gripping sand molds of different sizes.

Preferably, a backing plate is fixed on the inner side of the clamping plate.

Adopt above-mentioned scheme: the backing plate is in contact with the outside of the sand mold, so that the outside of the sand mold is damaged in the clamping process.

Preferably, the fixing frame is provided with a groove near the fixing block, and a rubber clamping plate is fixed in the groove.

Adopt above-mentioned scheme: when fixed frame decline is contradicted with the fixed plate upper end, place the fixed block through the rubber cardboard, make fixed frame can normally descend, and the rubber cardboard has sealed effect, prevents that the inside heat of fixed frame from losing.

The invention has the beneficial effects that:

1. the high-pressure heating sand casting device is characterized in that the lifting assembly comprises a sliding block connected inside a vertical rod in a sliding mode, a first adjusting screw is connected inside the sliding block in a threaded mode, the top of the first adjusting screw is rotatably connected to the top of the vertical rod, a fixing plate penetrates through the bottom of the first adjusting screw, and a motor is fixed at the extending end of the first adjusting screw; the motor drives the screw rod to rotate, the fixing frame can be controlled to be adjusted up and down, and the sand mold can be conveniently unloaded and installed when the sand mold needs to be replaced and heated.

2. The high-pressure heating sand casting device is characterized in that a high-pressure heating assembly is arranged and comprises a fixing frame fixed between two sliding blocks, a heating pipe is fixed inside the fixing frame, a heat preservation pipe is wrapped outside the heating pipe, the heat preservation pipe is fixed on the inner wall of the fixing frame and is provided with a plurality of heating pipes along the height direction of the fixing frame, a pressure valve is further fixed at the upper end of the fixing frame, and the pressure valve is provided with a plurality of pressure valves along the length direction of; carry out electrical heating through the intensification pipe, the inside atmospheric pressure of fixed frame risees when heating, and through the steerable inside atmospheric pressure size of loading valve, steerable inside atmospheric pressure is the optimal value simultaneously, ensures the best pressure value of sand mould heating, improves mould preparation quality.

3. The high-pressure heating sand casting device is provided with a clamping and fixing assembly which comprises a fixing block fixed on a fixing plate, wherein a second adjusting screw rod is in threaded connection with the inside of the fixing block, one end of the second adjusting screw rod is fixedly provided with an adjusting block, the other end of the second adjusting screw rod is fixedly provided with a connecting rod, and a clamping plate is fixedly arranged on the inner wall of the connecting rod; the grip blocks rotate through the adjusting blocks, the drive screw rotates to be adjusted, the distances among the four grip blocks can be conveniently adjusted, and the grip blocks are convenient for gripping sand molds of different sizes.

Drawings

FIG. 1 is a schematic perspective view of a high-pressure heating sand casting apparatus according to the present invention;

FIG. 2 is a schematic plan view of a high pressure elevated temperature sand casting apparatus according to the present invention, as shown in FIG. 1;

FIG. 3 is a schematic sectional view taken along line A-A in FIG. 2 of a high pressure elevated temperature sand casting apparatus according to the present invention;

fig. 4 is a schematic structural diagram of a clamping and fixing assembly of the high-pressure heating sand casting device provided by the invention.

In the figure: 1. a fixing plate; 2. a vertical rod; 3. a high-pressure heating assembly; 4. clamping and fixing the assembly; 5. a support bar; 6. a lifting assembly; 7. a slider; 8. a first adjusting screw; 9. a motor; 10. a fixing frame; 11. a heating pipe; 12. a heat preservation pipe; 13. a liquid inlet; 14. a liquid outlet; 15. an air pressure detector; 16. a fixed block; 17. a second adjusting screw; 18. an adjusting block; 19. a connecting rod; 20. a clamping plate; 21. a base plate; 22. a groove; 23. a rubber clamping plate; 24. and (4) releasing the valve.

Detailed Description

In order to further understand the contents, features and effects of the present invention, the following embodiments are illustrated and described in detail with reference to the accompanying drawings.

Referring to fig. 1 to 4 together, a high-pressure heating sand casting apparatus according to an embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

This high pressure intensification sand casting device includes fixed plate 1, montant 2, high pressure components of heating 3, the fixed subassembly 4 of centre gripping, 1 bottom of fixed plate is fixed with bracing piece 5, and bracing piece 5 is equipped with four altogether, and 1 upper end of fixed plate is fixed with montant 2, and montant 2 sets up about 1 middle part symmetry of fixed plate, and 2 inside sliding of montant are connected with lifting unit 6, fix between two lifting unit 6 high pressure components of heating 3, centre gripping fixed subassembly 4 are fixed in 1 upper end of fixed plate, are equipped with four altogether, are located four corners of fixed plate 1 respectively.

Concretely, lifting unit 6 is including sliding the sliding block 7 of connection in 2 insides of montant, and the threaded connection has first adjusting screw 8 in 7 inside of sliding block, and 8 tops of first adjusting screw rotate to be connected at 2 tops of montant, and fixed plate 1 is worn out to the bottom, and the end that stretches out is fixed with motor 9.

Specifically, high pressure rising temperature subassembly 3 is including fixing fixed frame 10 between two sliding blocks 7, and fixed frame 10 is inside to be fixed with heating tube 11, and the outside cladding of heating tube 11 has insulating tube 12, and 11 external connections of heating tube are to the heating structure, and insulating tube 12 is fixed on fixed frame 10 inner wall, is equipped with a plurality ofly along fixed frame 10 direction of height, and fixed frame 10 upper end still is fixed with ooze valve 12, and ooze valve 12 is equipped with a plurality ofly along fixed frame 10 length direction.

Specifically, one end of the heat preservation pipe 12 is fixedly connected with a liquid inlet 13, the other end of the heat preservation pipe is connected with a liquid outlet 14, and the liquid inlet 13 and the liquid outlet 14 are both fixed at the upper end of the fixing frame 10.

Specifically, an air pressure detector 15 is fixed to the upper end of the fixed frame 10.

Specifically, the fixed subassembly 4 of centre gripping is including fixing fixed block 16 on the fixed plate 1, and the inside threaded connection of fixed block 16 has second adjusting screw 17, and second adjusting screw 17 one end is fixed with regulating block 18, and the other end is fixed with connecting rod 19, is fixed with grip block 20 on the connecting rod 19 inner wall.

Specifically, a backing plate 21 is fixed on the inner side of the clamping plate 20, and the backing plate 21 is in direct contact with the outer part of the sand mold to prevent the sand mold from being damaged.

Concretely, fixed frame 10 is close to fixed block 16 department has seted up recess 22, and recess 22 is inside to be fixed with rubber cardboard 23, moves down to the bottom and when 1 upper end contact of fixed plate at fixed frame 10, and fixed block 16 parts slide in along rubber cardboard 23 middle part, and rubber cardboard 23 guarantees the normal removal of fixed frame 10, keeps warm to fixed frame 10 inside simultaneously.

The working principle of the invention is as follows: when using, place the sand mould in 1 upper end of fixed plate, it is fixed to carry out the sand mould through adjusting the fixed subassembly 4 of centre gripping, through rotating regulating block 18, drive second adjusting screw 17 and rotate inside fixed block 16, when second adjusting screw 17 rotates, grip block 20 moves towards 1 inside fixed plate, when four grip blocks 20 all contradict with the sand mould outside, stop second adjusting screw 17's rotation, open motor 9 simultaneously, drive first adjusting screw 8 and rotate, control sliding block 7 moves inside montant 2, when moving to 1 upper end of fixed plate at whole fixed frame 10 lower extreme, open the heating structure, make intensification pipe 11 heat up, heat inside sand mould, simultaneously carry out inside atmospheric pressure through atmospheric pressure detector 15 of fixed frame 10 upper end and detect, if inside atmospheric pressure is great, can punch card relief valve 24 and relieve the pressure.

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 high pressure intensification sand casting device, its characterized in that, this high pressure intensification sand casting device includes fixed plate (1), montant (2), high pressure intensification subassembly (3), the fixed subassembly (4) of centre gripping, fixed plate (1) bottom is fixed with bracing piece (5), and bracing piece (5) are equipped with four altogether, and fixed plate (1) upper end is fixed with montant (2), and montant (2) set up about fixed plate (1) middle part symmetry, and montant (2) inside is slided and is connected with lifting unit (6), fixes between two lifting unit (6) high pressure intensification subassembly (3), fixed subassembly (4) of centre gripping are fixed in fixed plate (1) upper end, are equipped with four altogether, are located four corners of fixed plate (1) respectively.

2. The high-pressure heating sand casting device according to claim 1, wherein the lifting assembly (6) comprises a sliding block (7) connected inside the vertical rod (2) in a sliding manner, the sliding block (7) is connected with a first adjusting screw (8) in a threaded manner, the top of the first adjusting screw (8) is rotatably connected to the top of the vertical rod (2), the bottom of the first adjusting screw penetrates through the fixing plate (1), and the extending end of the first adjusting screw is fixed with a motor (9).

3. The high-pressure heating sand casting device according to claim 1, wherein the high-pressure heating assembly (3) comprises a fixing frame (10) fixed between two sliding blocks (7), a heating pipe (11) is fixed inside the fixing frame (10), a heat preservation pipe (12) is coated outside the heating pipe (11), the heat preservation pipe (12) is fixed on the inner wall of the fixing frame (10), a plurality of pressure valves (12) are fixed at the upper end of the fixing frame (10) along the height direction of the fixing frame (10), and a plurality of pressure valves (12) are arranged along the length direction of the fixing frame (10) on the pressure valves (12).

4. The high-pressure heating sand casting device according to claim 3, wherein one end of the heat preservation pipe (12) is fixedly connected with a liquid inlet (13), the other end of the heat preservation pipe is connected with a liquid outlet (14), and the liquid inlet (13) and the liquid outlet (14) are both fixed at the upper end of the fixing frame (10).

5. A high-pressure rising temperature sand casting apparatus according to claim 3, wherein an air pressure detector (15) is further fixed to the upper end of the fixing frame (10).

6. The high-pressure heating sand casting device according to claim 1, wherein the clamping and fixing assembly (4) comprises a fixing block (16) fixed on the fixing plate (1), a second adjusting screw (17) is connected to the inside of the fixing block (16) in a threaded manner, one end of the second adjusting screw (17) is fixed with an adjusting block (18), the other end of the second adjusting screw is fixed with a connecting rod (19), and a clamping plate (20) is fixed on the inner wall of the connecting rod (19).

7. A high pressure rising sand casting apparatus according to claim 6, wherein a backing plate (21) is fixed to the inside of said holding plate (20).

8. The high-pressure heating sand casting device according to claim 6, wherein a groove (22) is formed in the fixing frame (10) close to the fixing block (16), and a rubber clamping plate (23) is fixed inside the groove (22).