CN215996877U

CN215996877U - Sand mold screening device for core shooter

Info

Publication number: CN215996877U
Application number: CN202122363010.XU
Authority: CN
Inventors: 黄基力; 陶雪平; 匡荣民; 余孝生; 廖继明
Original assignee: Anhui Anfa Machinery Co ltd
Current assignee: Anhui Anfa Machinery Co ltd
Priority date: 2021-09-28
Filing date: 2021-09-28
Publication date: 2022-03-11
Anticipated expiration: 2031-09-28

Abstract

The utility model discloses a mould husky sieving mechanism for core shooter, including a screening section of thick bamboo, the top intercommunication of a screening section of thick bamboo has the husky fill of storage, the internally mounted who stores up husky fill has the edulcoration board that the slope set up, and the lateral wall intercommunication that stores up husky fill has trash discharging port, the lower extreme that removes miscellaneous board is located trash discharging port's lower border, the axis of rotation is installed through the bearing rotation in the inside of a screening section of thick bamboo, the fixed cover of outer peripheral face of axis of rotation is equipped with crushing roller, crushing rack is all installed to the both sides of a screening section of thick bamboo inside wall, and two crushing rack symmetric distributions are in crushing roller both sides, the both ends of axis of rotation all extend to the outside of a screening section of thick bamboo, and the one end of axis of rotation has driving motor through the shaft coupling rigid coupling. The utility model discloses a mutual cooperation between each part, can effective control unloading speed, to mould husky fully smash and sieve, improved screening efficiency and mould husky qualification rate, still simplified equipment, reduced equipment input cost, easily popularization and application.

Description

Sand mold screening device for core shooter

Technical Field

The utility model relates to a core shooting machine technical field especially relates to a mould sand screening plant for core shooting machine.

Background

The core shooter utilizes compressed air to uniformly shoot mould sand into a sand box, and then applies pressure to compact the mould sand, so that the core shooter has the advantages of smooth surface, accurate size, simplicity in operation and the like, but the existing core shooter on the market can not directly send the screened mould sand into a sand storage box of the core shooter, and can not meet the existing requirements.

Through the retrieval, application number 202020407777.0's patent discloses a mould sand screening plant for core shooting machine, including cylindrical structure's sieve case, the top of sieve case is equipped with the feeder hopper, and the inside of feeder hopper is equipped with the comb board that the slope set up, and the lateral part of feeder hopper is equipped with first discharge gate, and the lower extreme of comb board is located the lower border of first discharge gate, and the lateral part of sieve case is equipped with second bin outlet, third discharge gate and discharging pipe, is equipped with a valve on second discharge gate and the third discharge gate respectively.

The device screens layer by layer through the grate plate, the first screen cloth and the second screen cloth, discharges unqualified mould sand for re-preparation, and the qualified mould sand entering the blanking cavity is directly added into a mould sand storage box of the core shooter by the screw conveyer in the discharge pipe.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem that the screening efficiency is low due to the fact that the blanking speed cannot be controlled in the prior art, and providing the mould sand screening device for the core shooter.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a mould sand screening device for a core shooter comprises a screening cylinder, wherein the top of the screening cylinder is fixedly communicated with a sand storage hopper, an obliquely arranged impurity removing plate is fixedly installed in the sand storage hopper, the side wall of the sand storage hopper is fixedly communicated with an impurity discharging port, the lower end of the impurity removing plate is positioned at the lower edge of the impurity discharging port, a rotating shaft is rotatably installed in the screening cylinder through a bearing, a crushing roller is fixedly sleeved on the outer peripheral surface of the rotating shaft, crushing racks are fixedly installed on two sides of the inner side wall of the screening cylinder, the two crushing racks are symmetrically distributed on two sides of the crushing roller, two ends of the rotating shaft extend to the outside of the screening cylinder, and one end of the rotating shaft is fixedly connected with a driving motor through a coupler;

inside slidable mounting of screening section of thick bamboo has the sieve, and goes back four supporting shoes of fixed mounting on the inside wall of screening section of thick bamboo, four the supporting shoe is located the same horizontal plane of sieve below, and equal fixed mounting has expanding spring between every supporting shoe and the sieve, rotate through the bearing on the lateral wall of screening section of thick bamboo and install the transmission shaft, the transmission shaft is provided with two and the symmetry sets up in the below of sieve, and equal fixed cover is equipped with cam, every on every transmission shaft the transmission shaft all runs through the outside of screening section of thick bamboo and fixed cover through the bearing and is equipped with the driven pulleys, every the driven pulleys all is connected with driving pulley, two through belt transmission driving pulley fixed cover respectively establishes at the both ends of axis of rotation.

Preferably, a material guide plate which is obliquely arranged is fixedly mounted inside the screening cylinder, a plurality of oblique holes are formed in the material guide plate, and the material guide plate is located below the crushing roller.

Preferably, each telescopic spring is internally embedded with a telescopic rod, and two ends of each telescopic rod are respectively fixedly connected with the support block and the sieve plate.

Preferably, the bottom of the screening cylinder is fixedly communicated with a sand supply pipe.

Preferably, a discharge port is fixedly communicated with the side wall of the screening cylinder, and a control valve is arranged in the discharge port.

Preferably, the mesh of the impurity removing plate is larger than that of the sieve plate.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses a set up crushing roller and the crushing rack of mutually supporting effect, not only can effective control unloading speed, can also smash the great mould sand of volume, improve the qualification rate.

2. The utility model discloses a cam drives the sieve up-and-down back and forth movement, can prevent effectively that the sieve from being blockked up, has improved screening efficiency.

3. The utility model discloses only adopt a driving motor to provide drive power for crushing roller and sieve simultaneously, simplified equipment, reduced equipment input cost, the management of being convenient for.

The utility model discloses a mutual cooperation between each part, can effective control unloading speed, to mould husky fully smash and sieve, improved screening efficiency and mould husky qualification rate, still simplified equipment, reduced the equipment input cost, improved the practicality, easily popularization and application.

Drawings

Fig. 1 is a schematic structural diagram of a mold sand screening device for a core shooter according to the present invention;

fig. 2 is a schematic side view of a cross-sectional structure of a mold sand screening device for a core shooter according to the present invention;

fig. 3 is a schematic view of a front view cross-sectional structure of a sand sieving device for a core shooter according to the present invention;

fig. 4 is an enlarged schematic view of a portion a in fig. 3.

In the figure: 1. a screening drum; 2. a sand storage hopper; 3. removing impurities; 4. a trash discharge port; 5. a rotating shaft; 6. a crushing roller; 7. crushing the rack; 8. a drive motor; 9. a sieve plate; 10. a support block; 11. a tension spring; 12. a drive shaft; 13. a cam; 14. a driven pulley; 15. a driving pulley; 16. a material guide plate; 17. an inclined hole; 18. a telescopic rod; 19. a sand supply pipe; 20. and (4) a discharge port.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Example one

Referring to fig. 1-4, a mould sand screening device for a core shooter comprises a screening cylinder 1, a sand storage hopper 2 is fixedly communicated with the top of the screening cylinder 1, an impurity removing plate 3 which is obliquely arranged is fixedly installed inside the sand storage hopper 2, the side wall of the sand storage hopper 2 is fixedly communicated with an impurity discharging port 4, the lower end of the impurity removing plate 3 is positioned at the lower edge of the impurity discharging port 4 to screen and discharge impurities with larger volume in mould sand, a rotating shaft 5 is rotatably installed inside the screening cylinder 1 through a bearing, a crushing roller 6 is fixedly sleeved on the outer circumferential surface of the rotating shaft 5, crushing racks 7 are fixedly installed on both sides of the inner side wall of the screening cylinder 1, the two crushing racks 7 are symmetrically distributed on both sides of the crushing roller 6, both ends of the rotating shaft 5 extend to the outside of the screening cylinder 1, a driving motor 8 is fixedly connected to one end of the rotating shaft 5 through a coupler, the driving motor 8 drives the crushing roller 6 to rotate, meanwhile, under the cooperation of the crushing rack 7, the mold sand with larger volume can be crushed, and the blanking speed can be effectively controlled;

the screening cylinder 1 is internally provided with a screen plate 9 in a sliding manner, the inner side wall of the screening cylinder 1 is also fixedly provided with four supporting blocks 10, the four supporting blocks 10 are positioned on the same horizontal plane below the screen plate 9, an expansion spring 11 is fixedly arranged between each supporting block 10 and the screen plate 9, vibration is reduced, the service life of the screen plate 9 is prolonged, the side wall of the screening cylinder 1 is rotatably provided with two transmission shafts 12 through bearings, the two transmission shafts 12 are symmetrically arranged below the screen plate 9, each transmission shaft 12 is fixedly sleeved with a cam 13, each transmission shaft 12 penetrates through the outside of the screening cylinder 1 through the rotation of the bearings and is fixedly sleeved with a driven pulley 14, each driven pulley 14 is connected with a driving pulley 15 through belt transmission, the two driving pulleys 15 are respectively and fixedly sleeved at two ends of a rotating shaft 5, the cam 13 drives the screen plate 9 to lift, and fast screening of mold sand is facilitated, the screening efficiency is improved.

In this embodiment, through storing up husky 2 of fighting and adding the mould sand in to screening section of thick bamboo 1, the mould sand is through removing miscellaneous board 3 during, the great impurity of volume is filtered out and is discharged through row miscellaneous mouth 4, the mould sand through removing miscellaneous board 3 drops to crushing roller 6 on, it rotates to drive crushing roller 6 through driving motor 8, simultaneously under the mating reaction of smashing rack 7, can smash the great mould sand of volume, can also effective control unloading speed, the mould sand after smashing drops to sieve on sieve 9 and carries out the screening, drive transmission shaft 12 through belt transmission simultaneously and rotate, drive cam 13 through transmission shaft 12 and rotate and make its drive sieve 9 do the back and forth movement, can improve the screening efficiency of mould sand greatly.

Example two

Referring to fig. 1-4, this embodiment is substantially the same as the first embodiment, and is more preferable in that a guide plate 16 is fixedly installed inside the sieving cylinder 1, the guide plate 16 is provided with a plurality of inclined holes 17, the guide plate 16 is located below the pulverizing roller 6 to ensure that the mold sand is evenly spread on the sieve plate 9, so as to improve the sieving efficiency, an expansion link 18 is installed inside each expansion spring 11, both ends of the expansion link 18 are fixedly connected with the support block 10 and the sieve plate 9, respectively, so as to enhance the stability and prolong the service life of the expansion spring 11, a sand supply pipe 19 is fixedly communicated with the bottom of the sieving cylinder 1, so as to directly transmit the qualified mold sand to the core shooter, so as to improve the working efficiency, a discharge port 20 is fixedly communicated with the side wall of the sieving cylinder 1, a control valve is arranged inside the discharge port 20, so as to discharge the unqualified mold sand, the mesh of the impurity removing plate 3 is larger than that of the sieve plate 9, facilitating the progressive screening.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A mould sand screening device for a core shooter comprises a screening cylinder (1), a sand storage hopper (2) is fixedly communicated with the top of the screening cylinder (1), it is characterized in that the interior of the sand storage hopper (2) is fixedly provided with an impurity removing plate (3) which is obliquely arranged, the side wall of the sand storage hopper (2) is fixedly communicated with a trash discharge port (4), the lower end of the trash removal plate (3) is positioned at the lower edge of the trash discharge port (4), a rotating shaft (5) is rotatably arranged in the screening cylinder (1) through a bearing, the rotating shaft (5) is fixedly sleeved with a crushing roller (6), the two sides of the inner side wall of the screening cylinder (1) are fixedly provided with crushing racks (7), the two crushing racks (7) are symmetrically distributed on the two sides of the crushing roller (6), both ends of the rotating shaft (5) extend to the outside of the screening cylinder (1), one end of the rotating shaft (5) is fixedly connected with a driving motor (8) through a coupling;

the screening plate (9) is slidably arranged in the screening barrel (1), four supporting blocks (10) are fixedly arranged on the inner side wall of the screening barrel (1), the four supporting blocks (10) are positioned on the same horizontal plane below the screening plate (9), and a telescopic spring (11) is fixedly arranged between each supporting block (10) and the sieve plate (9), a transmission shaft (12) is rotatably arranged on the side wall of the screening cylinder (1) through a bearing, two transmission shafts (12) are arranged and symmetrically arranged below the sieve plate (9), and all fixed cover is equipped with cam (13) on every transmission shaft (12), every transmission shaft (12) all rotate through the bearing to the outside of screening section of thick bamboo (1) and fixed the cover be equipped with from band pulley (14), every from band pulley (14) all are connected with driving pulley (15), two through belt drive fixed cover is established respectively at the both ends of axis of rotation (5) in driving pulley (15).

2. The mould sand screening device for the core shooter is characterized in that a guide plate (16) which is obliquely arranged is fixedly installed inside the screening barrel (1), a plurality of oblique holes (17) are formed in the guide plate (16), and the guide plate (16) is positioned below the crushing roller (6).

3. The mould sand screening device for the core shooter is characterized in that a telescopic rod (18) is embedded in each telescopic spring (11), and two ends of each telescopic rod (18) are fixedly connected with the support block (10) and the screen plate (9) respectively.

4. A mould sand screening device for a core shooter according to claim 1, characterized in that the bottom of the screening cylinder (1) is fixedly communicated with a sand supply pipe (19).

5. The mould sand screening device for the core shooter is characterized in that a discharge hole (20) is fixedly communicated with the side wall of the screening cylinder (1), and a control valve is arranged inside the discharge hole (20).

6. A modular sand screening device for core shooters, as in claim 1, characterized in that the mesh of the impurity removal plate (3) is larger than the mesh of the screening plate (9).