CN214133879U

CN214133879U - Trial hoisting leveling structure used during wind power casting sand mold stripping

Info

Publication number: CN214133879U
Application number: CN202023049505.7U
Authority: CN
Inventors: 李冠昕
Original assignee: Shanghai No1 Machine Tool Foundry Suzhou Co ltd
Current assignee: Shanghai No1 Machine Tool Foundry Suzhou Co ltd
Priority date: 2020-12-17
Filing date: 2020-12-17
Publication date: 2021-09-07
Anticipated expiration: 2030-12-17

Abstract

A trial-hanging leveling structure used during stripping of wind-power casting sand molds comprises a mold and a sand box, wherein the mold is arranged in the sand box, an opening of the sand box faces downwards, and a frame of the mold is arranged below the opening end of the sand box. Also comprises a plurality of auxiliary devices; any auxiliary device comprises a cushion block, clamping falcon and a clamping clip; the cushion block is placed on a flange at the opening end of the sand box; the first ends of the bayonets of the clips are clamped on the cushion blocks; the clamping falcon is connected to the frame of the mold; inside the card falcon is hollow, and the lateral surface of card falcon is opened has the perpendicular groove that runs through, and inside the bayonet socket second end of clamping stretched into the card falcon from perpendicular groove, and the card was at the inside top surface of card falcon. When the device is used, the gravity center of the sand mold and the wood mold is self-balanced and kept consistent during stripping. After matched hoisting equipment is used for trial hoisting and leveling, the device is removed, and then the stripping operation is carried out, so that the safety of personnel can be guaranteed, and the problem of sand wiping caused by gravity center deviation of the sand mould can be avoided.

Description

Trial hoisting leveling structure used during wind power casting sand mold stripping

Technical Field

The utility model relates to a foundry goods production technical field specifically is a try to hang leveling structure when being used for wind-powered electricity generation class foundry goods sand mo (u) ld drawing.

Background

The security department continuously strengthens the supervision of enterprise safety production, the enterprise is a main responsible person of the safety production and needs to take charge of relevant parties such as self staff, stockholders and social masses, meanwhile, the safety production is also the guarantee of the smooth operation of the enterprise, and the production safety of the enterprise can be guaranteed only by designed safety production appliances.

The development of large volume and light weight is the development trend of castings such as wind power and the like. After the molding is finished, when the large sand mold is stripped, if the gravity centers of the sand mold and the wood mold cannot be kept on the same vertical line, the stripping is not smooth, the sand mold is easy to scrape sand, the sand mold strength of a local area is more likely to be damaged in serious conditions, sand collapse is caused to enter molten iron to form a sand inclusion defect, the casting quality is affected, and even the casting is scrapped.

Disclosure of Invention

When large products such as wind power products and the like are subjected to sand mold stripping, sand is wiped by the sand mold due to the fact that the gravity centers of the sand box and the mold are not on the same vertical line, the appearance of the casting is poor if the sand is light, the polishing amount is increased, and the casting is likely to be scraped due to sand inclusion in the casting if the sand is serious. By using the device, the gravity centers of the mold and the sand box can be ensured to be on the same vertical line during stripping, so that the appearance and the quality of a casting are ensured, the working time and the rejection rate in the rear are reduced, and the production cost and the waste are reduced. The device specifically comprises:

a trial-hanging leveling structure used during stripping of wind-power casting sand molds comprises a mold and a sand box, wherein the mold is arranged in the sand box, an opening of the sand box faces downwards, and a frame of the mold is arranged below the opening end of the sand box. Also comprises a plurality of auxiliary devices; any auxiliary device comprises a cushion block, clamping falcon and a clamping clip;

the cushion block is placed on a flange at the opening end of the sand box; the first ends of the bayonets of the clips are clamped on the cushion blocks;

the clamping falcon is connected to the frame of the mold; inside the card falcon is hollow, and the lateral surface of card falcon is opened has the perpendicular groove that runs through, and inside the bayonet socket second end of clamping stretched into the card falcon from perpendicular groove, and the card was at the inside top surface of card falcon.

Under this structure, the draw falcon can be prefabricated on the mould when the mould is made, also can adopt detachable construction to connect draw falcon and mould.

The mould is the wood pattern, and draw falcon detachably to be connected in the frame of wood pattern, the structure includes: a counter bore is formed in the side frame of the wood pattern, and an expansion bolt is arranged in the counter bore; the inner side surface of the clamping falcon is provided with a through hole corresponding to the expansion bolt, and the axis of the through hole passes through the vertical slot (convenient for hanging a nut); the expansion bolt is detachably screwed with a nut.

This structure can reform transform existing wooden model, adopts expansion bolts structure to help protecting the wooden model.

Furthermore, an inclined pin is detachably inserted between the first end of the opening of the clamp and the cushion block. The clamping degree of the clamp can be adjusted through the inclined pin.

Further, the cushion block has a plurality of blocks with different thicknesses. The cushion blocks with different thicknesses are adopted to be suitable for sand boxes and molds with different structural sizes.

Preferably, the clip is a C-shaped connection fixing clip;

in the clamping falcon, the vertical groove extends from the ground inside the clamping falcon to the top surface inside the clamping falcon; the interval between the inside and outside face of draw falcon corresponds with the lateral wall thickness of sand box. The opening length of erecting the groove is long, the installation of C type connection fixation clamp of being convenient for, simultaneously, can also conveniently increase supplementary cushion etc. between the bayonet socket second end of C type connection fixation clamp and the inside top surface of card falcon to increase thickness, thereby be applicable to the sand box and the mould of multiple size.

The use and principle description of the present device:

1. firstly, a die fixed type clamping tenon is pre-arranged on the frame of a die (the dies of large products such as wind power products and the like are mostly wood dies);

2. placing a sand box on a mould;

3. buckling the lower end of the C-shaped connecting fixing clamp into a fixed clamping tenon of the mold, and hooking the upper end of the C-shaped connecting fixing clamp on a sand box flange;

4. the angle pin is driven into a gap between the upper end of the C-shaped connecting fixing clamp and the sand box flange until the fixing clamp is stable and does not shake;

5. after the modeling is finished, trial hoisting and leveling are firstly carried out, namely, the sand box is hoisted a little by hoisting equipment (the lifting lug is arranged outside the sand box), the mold is hoisted together at the moment, and after the center of gravity is adjusted, the C-shaped connecting fixing clamp of the device is unfastened;

6. the gravity center of the adjusted sand box and the lifting direction are on the same vertical line, so that the sand mould and the wood mould are smoothly separated, and sand wiping is avoided.

When the device is used, the gravity center of the sand mold and the wood mold is self-balanced and kept consistent during stripping. After matched hoisting equipment is used for trial hoisting and leveling, the device is removed, and then the stripping operation is carried out, so that the safety of personnel can be guaranteed, and the problem of sand wiping caused by gravity center deviation of the sand mould can be avoided.

The device has the advantages and beneficial effects that:

1. the gravity center between the automatic balance hoisting equipment and the sand box can be realized by the device.

2. The device can be suitable for products with different sizes.

3. The device has simple structure and convenient operation.

Drawings

FIG. 1 is a schematic view of the state of use of this example;

FIG. 2 is a schematic side view of the present example;

FIG. 3 is a schematic structural view of the present example;

in the figure: the mould comprises a mould 1, a sand box 2, a flange 3, a cushion block 4, a clamping falcon 5, a clamping clip 6, an inclined pin 7, a vertical groove 8, an expansion bolt 9 and a screw cap 10.

Detailed Description

The present disclosure is further described with reference to the following drawings and detailed description:

referring to fig. 1, a trial-hanging leveling structure for stripping a wind-power casting sand mold comprises a mold 1 and a sand box. In the molding operation, the mold 1 is placed on the molding plate, the mold 1 is in the sand box, the opening of the sand box faces downwards, and the frame of the mold 1 is below the opening end of the sand box. On the frame of the mold 1, there is a step for supporting the flask.

The improvement of the trial crane leveling structure is that the trial crane leveling structure further comprises a plurality of auxiliary devices. Meanwhile, the trial hoisting leveling structure can be widely applied to connection of the existing moulds 1 and sand boxes of most large castings and stripping of the sand boxes.

In FIG. 1, there is shown an illustration of an auxiliary device and its connection structure with the mold 1 and the flask 2. In actual use, a plurality of assist devices may be employed depending on the size of the mold 1 and the flask 2. Auxiliary devices are respectively arranged on four sides of the opening end of the sand box 2.

Referring again to figures 2 and 3, for any of the auxiliary devices, there are provided a spacer 4, a clamping falcon 5 and a clamping clip 6; the cushion block 4 is placed on the flange 3 at the opening end of the sand box 2; the first end of the bayonet of the clamp 6 is clamped on the cushion block 4; the clamping falcon 5 is connected to the frame of the mould 1; inside being hollow of card falcon 5, the lateral surface of card falcon 5 is opened has the vertical slot 8 that runs through, and inside the bayonet socket second end of clamping 6 stretched into the card falcon from vertical slot 8, and the card was at the inside top surface of card falcon.

In this example:

the mould 1 is a wood mould; draw falcon 5 detachably to be connected in the frame of wood pattern, its structure includes: a counter bore is formed in the side frame of the wood pattern, and an expansion bolt 9 is arranged in the counter bore; a through hole corresponding to the expansion bolt 9 is formed in the inner side face of the clamping falcon 5, and the axis of the through hole penetrates through the vertical groove 8; the expansion bolts 9 are detachably screwed with nuts 10. The expansion bolts 9 and the through holes are at least 2 corresponding groups, and the 2 groups are vertically arranged.

An inclined pin 7 is also detachably inserted between the open first end of the clamp 6 and the cushion block 4.

The spacer 4 has a plurality of pieces having different thicknesses.

The clamp 6 adopts a C-shaped connecting and fixing clamp; correspondingly, in the clamping falcon 5, the vertical slot 8 extends from the ground inside the clamping falcon to the top surface inside the clamping falcon; the spacing between the inner and outer side surfaces of the clamping falcon 5 corresponds to the thickness of the side wall of the sand box 2.

In this example, the tennons 5 are hollow box-type; the back of clamping falcon 5 is opened has the through-hole, and vertical slot 8 is opened on the front of clamping falcon 5, and the bottom surface of clamping falcon 5 is open, and the top surface of clamping falcon 5 is closed.

Claims

1. A trial-hanging leveling structure used for wind power casting sand mold stripping comprises a mold and a sand box, wherein the mold is arranged in the sand box, the opening of the sand box faces downwards, and the frame of the mold is arranged below the opening end of the sand box; any auxiliary device comprises a cushion block, clamping falcon and a clamping clip;

2. The trial lifting leveling structure for the wind-power casting sand mold stripping according to claim 1, wherein the mold is a wood mold; draw falcon detachably to be connected in the frame of wooden model, its structure includes: a counter bore is formed in the side frame of the wood pattern, and an expansion bolt is arranged in the counter bore; a through hole corresponding to the expansion bolt is formed in the inner side face of the clamping falcon, and the axis of the through hole penetrates through the vertical groove; the expansion bolt is detachably screwed with a nut.

3. The trial lifting leveling structure for the wind-power casting sand mold stripping according to claim 1, wherein an inclined pin is further detachably inserted between the first open end of the clamp and the cushion block.

4. The trial-hanging leveling structure for the sand mold stripping of the wind-power casting according to claim 1, wherein the cushion blocks are provided with a plurality of blocks with different thicknesses.

5. The trial lifting leveling structure for the wind-power casting sand mold stripping according to claim 1, wherein the clamp is a C-shaped connecting fixing clamp;

in the clamping falcon, the vertical groove extends from the ground inside the clamping falcon to the top surface inside the clamping falcon; the interval between the inside and outside face of draw falcon corresponds with the lateral wall thickness of sand box.