CN211990890U

CN211990890U - Sand box ventilation device for lost foam casting

Info

Publication number: CN211990890U
Application number: CN202020133187.3U
Authority: CN
Inventors: 陈叶辉; 陈蓉; 张锁头; 陈小冰; 高红头; 汪小碰
Original assignee: Nanjing Huiteng Machinery Casting Co ltd
Current assignee: Nanjing Huiteng Machinery Casting Co ltd
Priority date: 2020-01-21
Filing date: 2020-01-21
Publication date: 2020-11-24
Anticipated expiration: 2030-01-21

Abstract

The utility model provides a sand box ventilation device is used in lost foam casting, it relates to sand box technical field for lost foam casting. It contains fixed plate, first support column, second support column, rotates hole, rotation post, box, bearing frame, rotation groove, pivot, ventilative mouth, seal groove, spacing groove and closing plate, the bottom fixed mounting of fixed plate has first support column and second support column, the utility model discloses simple structure is more convenient, light when turning over the case operation, through fixing the rolling disc, prevents when turning over the case operation that the box deviates from the hoist, has increased the security of turning over in the case operation process, ventilates the box simultaneously, prevents the potential safety hazard that big impulsive force leads to.

Description

Sand box ventilation device for lost foam casting

Technical Field

The utility model relates to a sand box technical field is used in lost foam casting, concretely relates to sand box ventilation device is used in lost foam casting.

Background

Lost foam casting is a common process in casting molding, and is a novel casting method for bonding and combining paraffin or foam models with similar sizes and shapes to form a model, coating refractory paint and drying, burying the model in dry quartz sand for vibration molding, pouring under negative pressure to gasify the model, enabling molten metal to occupy the position of the model, solidifying and cooling to form a casting, wherein after molding, a sand box needs to be turned over and poured with sand to take out the model and the casting;

at present, when the box overturning operation is performed, a lifting tool is usually adopted to lift and assemble the sand box through a handle on the sand box, the sand box is directly overturned on the lifting tool by 90 degrees after pouring, although the method is simple to operate, certain potential safety hazards exist, in the overturning operation process, because the whole sand box is heavy, the labor intensity is high, the sealing performance of the sand box is good, and the ventilation function is not realized, so that the potential safety hazards can be caused by impulsive force during pouring the sand.

Disclosure of Invention

The utility model aims to provide a sand box ventilating device for lost foam casting, which aims at overcoming the defects and shortcomings of the prior art,

in order to achieve the above purpose, the utility model adopts the following technical scheme: a sand box ventilation device for lost foam casting comprises a fixed plate, a first support column, a second support column, a rotating hole, a rotating column, a box body, a bearing seat, a rotating groove, a rotating shaft, ventilation ports, sealing grooves, a limiting groove and a sealing plate, wherein the first support column and the second support column are fixedly installed at the bottom of the fixed plate, the rotating hole is formed in the second support column, the rotating column is rotatably installed in the rotating hole, one end of the rotating column extends to the outer side of the second support column and is fixedly provided with the box body which is set to be a hollow structure, the bearing seat is fixedly installed at one end of the box body far away from the rotating column, the rotating groove is formed at one end of the bearing seat far away from the box body, the rotating shaft is rotatably installed in the rotating groove, one end of the rotating shaft extends to the outer side of the bearing seat and is fixedly connected with one side, close to the second support, all seted up the spacing groove on the one side inner wall that two ventilative mouths kept away from each other, and sliding mounting has the closing plate in seal groove and the ventilative mouth, and the one end of two closing plates respectively with the sealed cooperation of corresponding seal groove, two spread grooves have been seted up at the top of box, two spread grooves are linked together with corresponding spacing groove respectively, equal sliding mounting has the connecting rod in two spread grooves, the bottom of two connecting rods extend to corresponding spacing inslot respectively and with the top fixed connection of corresponding closing plate.

Preferably, the utility model discloses the constant head tank has all been seted up to the one end that two closing plates kept away from each other, equal slidable mounting has the locating lever in two constant head tanks, and the one end that two locating levers were kept away from each other extends to the outside of corresponding closing plate respectively and the one side inner wall fixed connection who is close to each other with two corresponding spacing grooves, the equal fixed mounting of one end that two closing plates were kept away from each other has the cover to establish the spacing spring in the locating lever outside, the one end that two spacing springs were kept away from each other respectively with one side inner wall fixed connection of corresponding spacing groove, the one end that the box was kept away from to the rotation post has the rolling disc.

Preferably, the utility model discloses a one side that first support column was kept away from to the second support column is provided with the connecting plate, slidable mounting has two first poles on the connecting plate, one end of two first poles all extends to the outside of connecting plate and keeps away from one side fixed connection of first support column with the second support column, one side fixed mounting that the connecting plate is close to the box has the cover to establish the reset spring in the first pole outside, reset spring keeps away from the one end and the box fixed connection of connecting plate, one side fixed mounting that the box was kept away from to the connecting plate has the second pole, the draw-in groove has been seted up to one side that the rolling disc is close to the box, and the one end that the connecting plate was kept away from.

Preferably, the utility model discloses the opening has been seted up to the bottom of box, and the bottom of box articulates there is the apron, and apron and the sealed cooperation of opening.

Preferably, the utility model discloses the quantity of draw-in groove is a plurality of, and a plurality of draw-in grooves are annular equidistance and distribute on the rolling disc.

After the technical scheme is adopted, the utility model discloses beneficial effect does: its simple structure, it is more convenient, light when turning over the case operation, through fixing the rolling disc, prevents that the box from deviating from the hoist when turning over the case operation, has increased the security among the operation process of turning over the case, ventilates the box simultaneously, prevents the potential safety hazard that big impulsive force leads to.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is an enlarged view corresponding to section A in FIG. 1;

fig. 3 is an enlarged view corresponding to the portion B in fig. 1.

Description of reference numerals: fixed plate 1, first support column 2, second support column 3, rotation hole 4, rotation post 5, box 6, bearing frame 7, rotation groove 8, pivot 9, ventilative mouthful 10, seal groove 11, spacing groove 12, closing plate 13, spread groove 14, connecting rod 15, constant head tank 16, locating lever 17, spacing spring 18, rolling disc 19, connecting plate 20, first pole 21, reset spring 22, second pole 23, draw-in groove 24.

Detailed Description

Referring to fig. 1 to fig. 3, the technical solution adopted by the present embodiment is: a sand box ventilation device for lost foam casting comprises a fixing plate 1, a first supporting column 2, a second supporting column 3, a rotating hole 4, a rotating column 5, a box body 6, a bearing seat 7, a rotating groove 8, a rotating shaft 9, a ventilation opening 10, a sealing groove 11, a limiting groove 12 and a sealing plate 13, wherein the first supporting column 2 and the second supporting column 3 are fixedly installed at the bottom of the fixing plate 1, the rotating hole 4 is formed in the second supporting column 3, the rotating column 5 is rotatably installed in the rotating hole 4, one end of the rotating column 5 extends to the outer side of the second supporting column 3 and is fixedly provided with the box body 6 which is of a hollow structure, the bearing seat 7 is fixedly installed at one end of the box body 6 far away from the rotating column 5, the rotating groove 8 is formed at one end of the bearing seat 7 far away from the box body 6, the rotating shaft 9 is rotatably installed in the rotating groove 8, one end of the rotating shaft 9 extends to the outer, the top of the box body 6 is provided with two ventilation ports 10, the inner wall of one side, close to each other, of each of the two ventilation ports 10 is provided with a sealing groove 11, the inner wall of one side, far away from each other, of each of the two ventilation ports 10 is provided with a limiting groove 12, sealing plates 13 are slidably mounted in the sealing grooves 11 and the ventilation ports 10, one ends of the two sealing plates 13 are respectively in sealing fit with the corresponding sealing grooves 11, the top of the box body 6 is provided with two connecting grooves 14, the two connecting grooves 14 are respectively communicated with the corresponding limiting grooves 12, connecting rods 15 are slidably mounted in the two connecting grooves 14, the bottom ends of the two connecting rods 15 respectively extend into the corresponding limiting grooves 12 and are fixedly connected with the tops of the corresponding sealing plates 13, and the sealing plates 13 are clamped with the; the end, far away from each other, of each of the two sealing plates 13 is provided with a positioning groove 16, positioning rods 17 are slidably mounted in the two positioning grooves 16, the end, far away from each other, of each of the two positioning rods 17 extends to the outer side of the corresponding sealing plate 13 and is fixedly connected with the inner wall, close to each other, of one side of the corresponding limiting groove 12, the end, far away from each other, of each of the two sealing plates 13 is fixedly provided with a limiting spring 18 sleeved on the outer side of each positioning rod 17, the end, far away from each other, of each limiting spring 18 is fixedly connected with the inner wall, on one side of the corresponding limiting groove 12, one end, far away from the box body 6, of each rotating column 5 extends to the outer side of the second; a connecting plate 20 is arranged on one side, away from the first support column 2, of the second support column 3, two first rods 21 are slidably mounted on the connecting plate 20, one ends of the two first rods 21 extend to the outer side of the connecting plate 20 and are fixedly connected with one side, away from the first support column 2, of the second support column 3, a return spring 22 sleeved on the outer side of the first rods 21 is fixedly mounted on one side, close to the box body 6, of the connecting plate 20, one end, away from the connecting plate 20, of the return spring 22 is fixedly connected with the box body 6, a second rod 23 is fixedly mounted on one side, away from the box body 6, of the connecting plate 20, a clamping groove 24 is formed in one side, close to the box body 6, of the rotating disc 19, one end, away from the connecting plate 20, of the second rod 23 is clamped with the; an opening is formed in the bottom of the box body 6, a cover plate is hinged to the bottom of the box body 6, the cover plate is in sealing fit with the opening, and the cover plate seals the opening; the number of the clamping grooves 24 is multiple, the clamping grooves 24 are distributed on the rotating disc 19 in an annular shape at equal intervals, and the clamping grooves 24 fix the rotating disc 19 at multiple positions.

The utility model discloses a theory of operation: when the sealing device is used, the connecting plate 20 is pulled first, the connecting plate 20 compresses the two return springs 22, the two return springs 22 absorb energy, meanwhile, the connecting plate 20 drives the second rod 23 to move, the second rod 23 moves out of the clamping groove 24, then the rotating disc 19 is rotated, the rotating disc 19 drives the rotating column 5 to rotate, the rotating column 5 drives the box body 6 to turn over, when the box body 6 turns over, the rotating disc 19 is kept still, the connecting plate 20 is loosened, the second rod 23 is clamped into the clamping groove 24 under the spring rebounding force of the two return springs 22 to fix the box body 6, after the fixing is finished, the two connecting rods 15 are pulled, the two connecting rods 15 drive the two sealing plates 13 to move, the two sealing plates 13 compress the two limit springs to absorb energy 18, the two limit springs 18 enable the two sealing plates 13 to move out of the two sealing grooves 11, and the two ventilation ports 10 are, earlier exhaust box 6, after the exhaust, loosen two connecting rods 15, when the spring resilience effort through two spacing springs 18 was down, make two closing plate 13 cards go into in two seal grooves 11, this thereby can be more convenient when turning over the case operation, light, through fixing rolling disc 19, prevent when turning over the case operation, box 6 is deviate from the hoist, the security in the operation process of turning over the case has been increased, breathe freely box 6 simultaneously, prevent the potential safety hazard that big impulsive force leads to.

The above description is only for the purpose of illustrating the technical solutions of the present invention and not for the purpose of limiting the same, and other modifications or equivalent replacements made by those of ordinary skill in the art to the technical solutions of the present invention should be covered within the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solutions of the present invention.

Claims

1. The utility model provides a sand box ventilation device is used in lost foam casting which characterized in that: the novel bearing box comprises a fixed plate (1), a first supporting column (2), a second supporting column (3), a rotating hole (4), a rotating column (5), a box body (6), a bearing seat (7), a rotating groove (8), a rotating shaft (9), a ventilating opening (10), a sealing groove (11), a limiting groove (12) and a sealing plate (13), wherein the bottom of the fixed plate (1) is fixedly provided with the first supporting column (2) and the second supporting column (3), the second supporting column (3) is provided with the rotating hole (4), the rotating column (5) is rotatably arranged in the rotating hole (4), one end of the rotating column (5) extends to the outer side of the second supporting column (3) and is fixedly provided with the box body (6) which is of a hollow structure, one end of the box body (6) far away from the rotating column (5) is fixedly provided with the bearing seat (7), one end of the bearing seat (7) far away from the box body (6) is provided with the rotating, the rotating shaft (9) is rotatably installed in the rotating groove (8), one end of the rotating shaft (9) extends to the outer side of the bearing seat (7) and is fixedly connected with one side, close to the second supporting column (3), of the first supporting column (2), two ventilating ports (10) are formed in the top of the box body (6), sealing grooves (11) are formed in the inner wall, close to one side of each ventilating port (10), of each ventilating port, limiting grooves (12) are formed in the inner wall, far away from one side of each ventilating port (10), sealing plates (13) are installed in the sealing grooves (11) and the ventilating ports (10) in a sliding mode, one ends of the two sealing plates (13) are respectively in sealing fit with the corresponding sealing grooves (11), two connecting grooves (14) are formed in the top of the box body (6), and the two connecting grooves (14) are respectively communicated with the corresponding limiting grooves (12), connecting rods (15) are slidably mounted in the two connecting grooves (14), and the bottom ends of the two connecting rods (15) respectively extend into the corresponding limiting grooves (12) and are fixedly connected with the tops of the corresponding sealing plates (13).

2. The ventilating device of a flask for lost foam casting according to claim 1, wherein: the one end of keeping away from each other of two closing plates (13) all seted up constant head tank (16), two constant head tank (16) in equal slidable mounting have locating lever (17), and two locating lever (17) the one end of keeping away from each other extend to the outside of corresponding closing plate (13) respectively and with the one side inner wall fixed connection that two corresponding spacing grooves (12) are close to each other, two the equal fixed mounting of one end of keeping away from each other of closing plate (13) establish spacing spring (18) in locating lever (17) outside, two spacing spring (18) the one end of keeping away from each other respectively with one side inner wall fixed connection of corresponding spacing groove (12), rotation post (5) the one end of keeping away from box (6) extend to the outside of second support column (3) and fixed mounting have rolling disc (19).

3. The ventilating device of a flask for lost foam casting according to claim 2, wherein: a connecting plate (20) is arranged on one side of the second supporting column (3) far away from the first supporting column (2), the connecting plate (20) is provided with two first rods (21) in a sliding way, one ends of the two first rods (21) extend to the outer side of the connecting plate (20) and are fixedly connected with one side of the second supporting column (3) far away from the first supporting column (2), one side of the connecting plate (20) close to the box body (6) is fixedly provided with a return spring (22) sleeved outside the first rod (21), one end of the return spring (22) far away from the connecting plate (20) is fixedly connected with the box body (6), a second rod (23) is fixedly arranged on one side of the connecting plate (20) far away from the box body (6), a clamping groove (24) is arranged on one side of the rotating disc (19) close to the box body (6), and one end of the second rod (23) far away from the connecting plate (20) is clamped with the clamping groove (24).

4. The ventilating device of a flask for lost foam casting according to claim 1, wherein: the bottom of the box body (6) is provided with an opening, the bottom of the box body (6) is hinged with a cover plate, and the cover plate is in sealing fit with the opening.

5. The ventilating device of a flask for lost foam casting according to claim 3, wherein: the number of the clamping grooves (24) is multiple, and the clamping grooves (24) are annularly and equidistantly distributed on the rotating disc (19).