CN220354006U

CN220354006U - Vacuum pumping device for molding sand

Info

Publication number: CN220354006U
Application number: CN202321415230.5U
Authority: CN
Inventors: 何威
Original assignee: Hubei Songwei Machinery Manufacturing Co ltd
Current assignee: Hubei Songwei Machinery Manufacturing Co ltd
Priority date: 2023-06-05
Filing date: 2023-06-05
Publication date: 2024-01-16
Anticipated expiration: 2033-06-05

Abstract

The utility model discloses a vacuum pumping device for molding sand, which comprises a molding sand box, a confluence box, a vacuum tank, a water seal tank and a vacuum pump, wherein the confluence box, the vacuum tank, the water seal tank and the vacuum pump are sequentially communicated by air pipes, a pair of air pumping ports are respectively arranged on two sides of the molding sand box, a pair of air pumping hoses are connected to the confluence box, a shunting communication device is arranged at the input end of each air pumping hose, the device comprises a square sleeve I, a square sleeve II which is slidably telescopic in the square sleeve I, a shunting box I which is fixed in one end of the square sleeve I far away from the square sleeve II, a shunting box II which is fixed in one end of the square sleeve II far away from the square sleeve I, a rubber sleeve which is communicated with the air pumping ports and the shunting box I or the shunting box II, and a folding telescopic pipe which is communicated with the shunting box I and the shunting box II are connected, and the telescopic pipe is positioned in the square sleeve I and the square sleeve II. The utility model has the following advantages and effects: has the effect of assisting the quick connection type sand box of the vacuum equipment.

Description

Vacuum pumping device for molding sand

Technical Field

The utility model relates to the technical field of molding sand casting, in particular to a vacuum pumping device for molding sand.

Background

At present, in order to improve the casting speed and reduce the generation of air holes in castings in the molding sand casting process, air in a closed sand box is generally pumped out through vacuumizing equipment before casting, so that the flow of liquid metal is accelerated and the air holes are reduced during casting, the oxidation of the surfaces of the castings can be effectively reduced, and the compactness of the castings is improved. The existing molding sand vacuumizing equipment is formed by sequentially connecting a vacuum pump, a vacuum tank, a water seal tank and an exhaust pipe, when a large sand box is vacuumized, four or more exhaust pipes are generally required to be arranged to be respectively connected with the exhaust openings arranged on the two sides of the sand box, and the exhaust pipes and the exhaust openings are connected and fixed manually in sequence in the process of connecting, so that the vacuumizing preparation time is long, the labor intensity is high, and the problems of winding, knotting and the like can be caused due to excessive exhaust pipes, so that the work load of workers is increased.

Disclosure of Invention

The utility model aims to provide a vacuum pumping device for molding sand, which has the effect of assisting a quick connection type sand box of vacuum equipment.

The technical aim of the utility model is realized by the following technical scheme: the utility model provides a vacuum pumping device for molding sand, includes the type sand box, and the collection flow box, vacuum tank, water seal tank, the vacuum pump that are linked together by the gas-supply pipe in proper order, the both sides of molding sand box are provided with a pair of extraction opening respectively, be connected with a pair of air exhaust hose on the collection flow box, air exhaust hose's input is provided with the reposition of redundant personnel intercommunication device of two extraction openings in sand box one side simultaneously, reposition of redundant personnel intercommunication device includes square sleeve one, slip flexible square sleeve two in square sleeve one, be fixed in square sleeve one keep away from square sleeve two in the one end, be fixed in square sleeve two keep away from square sleeve one end the reposition of redundant personnel case two, communicate extraction opening and reposition of redundant personnel case one or the folding flexible pipe of reposition of redundant personnel case two, the reposition of redundant personnel case one deviate from reposition of redundant personnel case two one side with the flexible pipe that extracts, the reposition of redundant personnel case one is located square sleeve one and square sleeve two.

Through adopting above-mentioned technical scheme, when the extraction opening of needs connection air extraction hose and type sand box, square sleeve two in the flexible square sleeve first at first for rubber sleeve on shunt case one and the shunt case two, align with two extraction openings of molding sand case one side respectively, because be provided with the folding flexible pipe of connection on shunt case one and shunt case two in square sleeve one and the square sleeve two, and air extraction hose one end is connected shunt case one, consequently with the last rubber sleeve of shunt case one and shunt case two, fix the cover respectively on two extraction openings and, can be linked together an air extraction hose and two extraction openings, thereby can also certain save the outside space of sand box when effectively reducing the quantity that the air extraction hose used.

The utility model is further provided with: the air inlet I is fixedly arranged at the joint of the first split flow box and the rubber sleeve, the air exhaust hose and the folding telescopic pipe respectively, one ends of the rubber sleeve, the air exhaust hose and the folding telescopic pipe are sleeved on the first air inlet I of the split flow box respectively, the air inlet II is fixedly arranged at the joint of the second split flow box and the rubber sleeve and the folding telescopic pipe respectively, one ends of the rubber sleeve and the folding telescopic pipe are sleeved on the second air inlet II of the split flow box respectively, and the first air inlet and the second air inlet II are sleeved with throat hoops for fixedly sealing one ends of the pipes.

The utility model is further provided with: the one end cover of rubber sleeve locates on the extraction opening, two cover respectively on the extraction opening is equipped with fixed rubber sleeve's fixed subassembly, fixed subassembly is including last arc spare and lower arc spare that is located the extraction opening upper and lower both sides, be fixed in last clamp spare and lower clamp spare of last arc spare and lower arc spare one end respectively, lower arc spare fixed connection one side of shunt box one or shunt box two the one end of fixed subassembly is fixed connection square sleeve three and square sleeve four respectively, square sleeve four slides and stretches out and draws back in square sleeve three, and both and square sleeve one or square sleeve two are parallel to each other, the bolt fixed connection is passed through to the one end that square sleeve three or square sleeve four were kept away from to last clamp spare and lower clamp spare, the other end of going up clamp spare and lower clamp spare is passed through bolt sliding connection, the throat hoop on the rubber sleeve is located the inside of going up arc spare and lower arc spare.

Through adopting above-mentioned technical scheme, when needing fixed extraction opening rubber sleeve, only need screw up the bolt of last clamp spare and lower clamp spare one end on two rubber sleeve, can fasten the rubber sleeve clamp on the extraction opening, and then when making things convenient for the staff to be fixed in the extraction opening with rubber sleeve, can also effectively shorten the preparation time of molding sand evacuation process to let the casting efficiency of improvement molding sand.

The utility model is further provided with: and a handle is fixedly arranged on one side of the first split flow box and one side of the second split flow box, which are away from the rubber sleeve.

The utility model is further provided with: the screw cap of the bolt is fixedly provided with a knob.

The beneficial effects of the utility model are as follows: through the connection structure of shunt case one and shunt case two among the reposition of redundant personnel intercommunication device, not only can effectively reduce the use quantity of air exhaust hose, in order to avoid the exhaust tube to take place winding and tie a knot scheduling problem, the connection structure of last clamp spare and lower clamp spare among the cooperation fixed subassembly moreover, can also be quick fix the rubber sleeve clamp on the extraction opening, and then effectively alleviate the staff and connect the work burden of extraction opening and air exhaust hose, and certain shortened the preparation time of molding sand evacuation process, thereby the casting efficiency of molding sand has been improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic perspective view of the present embodiment;

FIG. 2 is a schematic view showing the connection relationship between the flask and the split communication device according to the present embodiment;

FIG. 3 is a schematic view showing the connection relationship between the fixed assembly and the split communication device according to the present embodiment;

fig. 4 is a schematic view showing the internal structure of the shunt communication device of the present embodiment;

in the figure, 1, a molding sand box; 11. an extraction opening; 2. a gas pipe; 3. a junction box; 4. a vacuum tank; 5. a water sealed tank; 6. a vacuum pump; 7. an air extraction hose; 8. a shunt communication device; 81. square sleeve I; 82. a first shunt box; 821. an air inlet I; 83. square sleeve II; 84. a second shunt box; 841. an air inlet II; 85. a rubber sleeve; 86. folding the telescopic pipe; 87. a laryngeal cuff; 9. a fixing assembly; 91. an upper arc-shaped piece; 92. an upper clamping piece; 93. a square sleeve III; 94. square sleeve IV; 95. a lower arc member; 96. a lower clip member; 97. a bolt; 98. a knob; 99. a plug pin; 10. and (5) a handle.

Description of the embodiments

The technical scheme of the present utility model will be clearly and completely described in connection with specific embodiments. It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to fall within the scope of the utility model.

Examples: 1-4, including a molding flask 1, and a confluence box 3, a vacuum tank 4, a water sealed tank 5, a vacuum pump 6 which are communicated with each other by a gas pipe 2 in turn, wherein two sides of the molding flask 1 are respectively provided with a pair of extraction openings 11, a pair of extraction hoses 7 are connected on the confluence box 3, an input end of each extraction hose 7 is provided with a shunt communication device 8 which is simultaneously communicated with two extraction openings 11 on one side of the molding flask 1, the shunt communication device 8 comprises a square sleeve 81, a square sleeve 83 which is slidingly telescopic in the square sleeve 81, a shunt box 82 which is fixed on one end of the square sleeve 81 far from the square sleeve 83, a shunt box 84 which is fixed on one end of the square sleeve 83 far from the square sleeve 81, a rubber sleeve 85 which is communicated with the extraction openings 11 and the shunt box 82 or the shunt box 84, and a folding telescopic pipe 86 which is communicated with the shunt box 82 and the shunt box 84, the side of the first split box 82, which is away from the second split box 84, is connected with the air suction hose 7, the telescopic pipes are positioned in the first square sleeve 81 and the second square sleeve 83, when the air suction hose 7 and the air suction port 11 of the molding box 1 are required to be connected, the second square sleeve 83 in the first square sleeve 81 is slid and stretched so that the rubber sleeve 85 on the first split box 82 and the second split box 84 are respectively aligned with the two air suction ports 11 on one side of the molding box 1, because the folding telescopic pipes 86 which are connected with the first split box 82 and the second split box 84 are arranged in the first square sleeve 81 and the second square sleeve 83, and one end of the air suction hose 7 is connected with the first split box 82, the rubber sleeve 85 on the first split box 82 and the second split box 84 are respectively fixedly sleeved on the two air suction ports 11, and the air suction hose 7 and the two air suction ports 11 can be communicated, so that the quantity used by the air suction hose 7 is effectively reduced, and the space outside the sand box 1 can be saved to a certain extent. The handle 10 is fixedly arranged on one side, away from the rubber sleeve 85, of the first split box 82 and the second split box 84, so that a worker can conveniently and quickly lift the first split box 82 and the second split box 84, and the distance between the first split box 82 and the second split box 84 can be stably adjusted.

As shown in fig. 4, the first air inlet 821 is fixedly arranged at the connection position of the first split box 82 and the rubber sleeve 85, the air suction hose 7 and the folding telescopic pipe 86 respectively, one ends of the rubber sleeve 85, the air suction hose 7 and the folding telescopic pipe 86 are respectively sleeved on the first air inlet 821 of the first split box 82, the second air inlet 841 is fixedly arranged at the connection position of the second split box 84 and the rubber sleeve 85 and the folding telescopic pipe 86 respectively, one ends of the rubber sleeve 85 and the folding telescopic pipe 86 are respectively sleeved on the second air inlet 841 of the second split box 84, the first air inlet 821 and the second air inlet 841 are sleeved with the throat hoops 87 for fixedly sealing one ends of the pipes, and the pipes are fixed through the throat hoops 87, so that the connection stability of the pipes can be ensured, and the leakage of air from the pipe joint can be effectively prevented.

As shown in fig. 3, the one end cover of rubber sleeve 85 is located on extraction opening 11, the cover is equipped with fixed subassembly 9 of fixed rubber sleeve 85 on two extraction openings 11 respectively, fixed subassembly 9 is including the last arc piece 91 and the lower arc piece 95 that are located the extraction opening 11 upper and lower both sides, be fixed in last arc piece 91 and lower arc piece 95 one end respectively and go up clamp piece 92 and lower clamp piece 96, one side of lower arc piece 95 fixed connection shunt box one 82 or shunt box two 84, the one end of last arc piece 91 of two fixed subassemblies 9 is fixed connection square sleeve three 93 and square sleeve four 94 respectively, square sleeve four 94 slides and stretches out and draws back in square sleeve three 93, and both and square sleeve one 81 or square sleeve two 83 are parallel to each other, go up clamp piece 92 and lower clamp piece 96 and keep away from square sleeve three 93 or square sleeve four 94's one end and pass through bolt 97 fixed connection, go up clamp piece 92 and lower clamp piece 96's the other end passes through bolt 99 sliding connection, the throat hoop 87 on the rubber sleeve 85 is located the inside of last arc piece 91 and lower arc piece 95, when need fixed extraction opening 11 go up rubber sleeve 85, need only with last clamp piece 92 and lower clamp piece 85, can also be in order to improve the time of fixing the extraction opening 11 and can be in order to draw down the molding sand and can be used for the molding sand to take place by the step to the step and the molding sand is further to the step is convenient. Wherein, the nut of the bolt 97 is fixedly provided with a knob 98, so that a worker can conveniently and rapidly screw the bolt 97.

The working principle of the embodiment is as follows: when the air suction hose 7 and the air suction opening 11 of the sand box 1 need to be connected, the square sleeve II 83 in the square sleeve I81 is slid to enable the rubber sleeve 85 on the first split box 82 and the second split box 84 to be aligned with the two air suction openings 11 on one side of the sand box 1 respectively, then the rubber sleeve 85 on the first split box 82 and the second split box 84 is fixedly sleeved on the two air suction openings 11 respectively, the air suction hose 7 and the two air suction openings 11 can be communicated, finally the bolts 97 on one ends of the upper clamping hoop 92 and the lower clamping hoop 96 on the two rubber sleeve 85 are screwed tightly, and the rubber sleeve 85 can be clamped and fixed on the air suction opening 11.

Claims

1. The utility model provides a vacuum pumping device for molding sand, includes sand box (1), and flow converging box (3), vacuum tank (4), water seal tank (5), vacuum pump (6) that are linked together by air pipe (2) in proper order, the both sides of sand box (1) are provided with a pair of extraction opening (11) respectively, be connected with a pair of air exhaust hose (7) on flow converging box (3), its characterized in that, air exhaust hose (7)'s input is provided with the reposition of redundant personnel intercommunication device (8) of two extraction openings (11) on one side of sand box (1) of intercommunication simultaneously, reposition of redundant personnel intercommunication device (8) include square sleeve one (81), slide square sleeve two (83) that stretch out and draw back in square sleeve one (81), be fixed in square sleeve one (81) keep away from in square sleeve two (83) one end shunt box one (82), be fixed in square sleeve two (83) keep away from square sleeve one (84), communicate opening (11) and shunt box one (82) or shunt box two (84) rubber sleeve (85), connect shunt box one side (84) and two shunt box (84) and fold flexible pipe (84) that one side of shunt box (84) kept away from, the telescopic pipe is positioned in the square sleeve I (81) and the square sleeve II (83).

2. The vacuum-pumping apparatus for molding sand according to claim 1, wherein: the air inlet I (821) is fixedly arranged at the joint of the first split box (82) and the rubber sleeve (85), the air exhaust hose (7) and the folding telescopic pipe (86) respectively, one ends of the rubber sleeve (85), the air exhaust hose (7) and the folding telescopic pipe (86) are sleeved on the air inlet I (821) of the first split box (82) respectively, the air inlet II (841) is fixedly arranged at the joint of the second split box (84) and the rubber sleeve (85) and the folding telescopic pipe (86) respectively, one ends of the rubber sleeve (85) and the folding telescopic pipe (86) are sleeved on the air inlet II (841) of the second split box (84) respectively, and the air inlet I (821) and the air inlet II (841) are sleeved with the throat hoops (87) for fixedly sealing one ends of the pipes.

3. The vacuum-pumping apparatus for molding sand according to claim 1, wherein: the one end cover of rubber sleeve (85) is located on extraction opening (11), two fixed subassembly (9) of fixed rubber sleeve (85) are equipped with to the cover on extraction opening (11) respectively, fixed subassembly (9) are including last arc piece (91) and lower arc piece (95) that are located extraction opening (11) upper and lower both sides, last clamp piece (92) and lower clamp piece (96) that are fixed in last arc piece (91) and lower arc piece (95) one end respectively, lower arc piece (95) fixed connection one side of shunt box one (82) or shunt box two (84), two the one end of last arc piece (91) of fixed subassembly (9) is fixed connection square sleeve three (93) and square sleeve four (94) respectively, square sleeve four (94) slide and stretch out and draw back in square sleeve three (93), and both are parallel to each other with square sleeve one (81) or square sleeve two (83), go up clamp piece (92) and lower clamp piece (96) and keep away from square sleeve three (93) or one end of four (94) through clamp bolt (99) and clamp piece (96) of sliding connection.

4. The vacuum-pumping apparatus for molding sand according to claim 1, wherein: and a handle (10) is fixedly arranged on one side, away from the rubber sleeve (85), of the first split box (82) and the second split box (84).

5. A vacuum-pumping apparatus for molding sand according to claim 3, wherein: the screw cap of the bolt (97) is fixedly provided with a knob (98).