Rotary casting molding sand separation device

Abstract

The utility model discloses a rotary casting molding sand separating device, and relates to the technical field of machining. The screening device comprises a screening barrel, a replaceable protection frame, a waste pool and smashing steel balls, slag discharging holes are formed in the bottom of the peripheral face of the screening barrel in a penetrating mode, a rotary motor is arranged at one end of the screening barrel, the replaceable protection frame is rotationally clamped in the screening barrel, a material through hole is formed in one side of the replaceable protection frame in a penetrating mode, and the waste pool is attached to the bottom of the peripheral face of the screening barrel. A net-shaped conveying belt penetrates through one end of the waste pool in a clamped mode, and a plurality of smashing steel balls are arranged in the screening barrel. According to the casting molding sand separating device, the screening barrel, the replaceable protection frame, the waste pool and the smashing steel ball are arranged, so that the problems that in the actual use process of the casting molding sand separating device, molding sand with the large size is difficult to be rapidly separated from the through hole of the separating device, the separating efficiency is reduced, and sharp protrusions of castings are prone to being blocked in the through hole by external force when the rotary drum rotates are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of mechanical processing, in particular to a rotary casting sand separation device. Background Art

[0002] Castings are metal objects obtained by various casting methods, that is, the smelted liquid metal is poured into a pre-prepared mold by pouring, injection, suction or other casting methods, and after cooling and subsequent processing such as grinding, the resulting object has a certain shape, size and performance. When the casting is molded, it is necessary to make a corresponding mold with molding sand, and then use the mold to shape the raw materials of the casting. Therefore, after the casting is formed, the casting and the molding sand need to be separated. After the preliminary separation of the casting and the molding sand, the casting needs to be further cleaned, the molding sand adhering to the surface of the casting is washed away, and the casting and the molding sand are separated again using a separation device, so as to facilitate further processing of the casting and facilitate the crushing and reuse of the molding sand. However, it still has the following disadvantages in actual use:

[0003] The utility model with publication number CN211218645U discloses a casting and molding sand separation device, wherein the base is a rectangular table with a plurality of legs, and a separation mechanism and a conveying frame are arranged on the upper part of the base, and the separation mechanism is divided into a feeding part and a material distribution part; the feeding part includes a workbench, a stirring trough and a stirring rod, the stirring trough is arranged on the upper part of the workbench, and a stirring trough and a discharge port are arranged inside the stirring trough; a first conveyor belt is arranged on the conveying frame, and a second conveyor belt and a material distribution part are arranged at one end of the first conveyor belt, The material separation part includes a fixed frame, a rotating drum and a collecting trough. The rotating drum is tilted on the fixed frame, and one end of the rotating drum is connected to the driving box through a transmission belt. During the separation of the casting and the molding sand in the rotating drum, the molding sand is often only separated from the casting through the through hole, and the molding sand needs to be collected and then crushed by a crushing device. Due to the different sizes of the castings, the sizes of the fallen molding sand are also different. The larger size of the molding sand may be difficult to escape from the rotating drum through the smaller size of the through hole, which reduces the separation efficiency.

[0004] When the castings and the molding sand are separated by the rotating drum, due to the different sizes and shapes of the castings, some castings may have relatively sharp protrusions. When the castings are moved by the rotation of the rotating drum, they are squeezed by other castings, which may cause the sharp protrusions of some castings to be blocked in the through holes, making it inconvenient to separate the molding sand and the castings. Although cleaning the rotating surface with a scraper or the like can avoid the blockage of the through holes, it will generate a vertical force on the protrusions of the castings, which may cause damage to the protruding parts of the castings. Utility Model Content

[0005] The utility model aims to provide a rotary casting sand separation device, which solves the problems that, when the casting sand separation device is actually used, the larger-sized casting sand is difficult to quickly escape from the through hole of the separation device, thereby reducing the separation efficiency, and the sharp protrusions of the casting are easily blocked in the through hole by external force when the drum rotates, through a screening barrel, a replaceable protective frame, a waste pool and crushing steel balls.

[0006] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0007] The utility model discloses a rotary casting sand separation device, comprising a screening barrel, a replaceable protective frame, a waste pool and crushing steel balls, wherein a slag discharge hole is provided through the bottom of the outer peripheral surface of the screening barrel, a rotary motor is provided at one end of the screening barrel, a replaceable protective frame is rotatably connected in the screening barrel, a material passing hole is provided through one side of the replaceable protective frame, a waste pool is attached to the bottom of the outer peripheral surface of the screening barrel, a mesh conveyor belt is provided through one end of the waste pool, and a plurality of crushing steel balls are provided in the screening barrel;

[0008] When separating the molding sand and the casting, the molding sand and the casting are poured into the replaceable protective frame, and the replaceable protective frame is driven to rotate by the rotary motor, so that the molding sand is crushed under the action of gravity and collision and escapes from the replaceable protective frame through the material passage hole. The material passage hole is slightly smaller than the size of the casting, and the crushing steel balls are larger than the size of the material passage hole, which prevents the casting from escaping from the replaceable protective frame and at the same time avoids damage to the casting caused by the collision of the crushing steel balls, and reduces the probability of the end of the casting being blocked in the material passage hole, while ensuring that the molding sand can pass through the material passage hole quickly. The molding sand that escapes from the replaceable protective frame collides with the crushing steel balls under the rotation of the replaceable protective frame, so that the crushing steel balls crush the molding sand until the molding sand is crushed to a suitable size to pass through the slag discharge hole of the screening barrel. There is no need to perform crushing operation after the molding sand is collected, thereby improving production efficiency. At the same time, the rotation of the replaceable protective frame can scrape off the molding sand blocked in the slag discharge hole, thereby ensuring screening efficiency.

[0009] Furthermore, a support frame is welded and fixed to the outer peripheral surface of the screening barrel, a maintenance cover is rotatably clamped at one end of the screening barrel, and a discharge pipe is welded through the bottom of one side of the maintenance cover;

[0010] By opening the maintenance cover, the staff can replace the size of the replaceable protective frame according to the size of the casting, so that when the casting and the molding sand are separated, the casting will not fall off the replaceable protective frame and its end will not be blocked in the material passage hole, ensuring that the molding sand can pass through the material passage hole quickly while avoiding damage to the casting caused by the collision of the crushing steel ball.

[0011] Furthermore, a control cover is clamped and fixed at one end of the screening barrel, a feed hopper is welded through the top of one side of the control cover, the rotary motor is clamped on one side of the control cover, a drive rod is clamped at one end of the rotary motor, the drive rod is inserted through one side of the control cover, the control cover is located at the other end of the screening barrel relative to the maintenance cover, and the drive rod is inserted into the inner side of the screening barrel;

[0012] The rotary motor can drive the replaceable protective frame to rotate, so that the molding sand can be separated from the replaceable protective frame under the action of gravity and collide with the crushing steel balls to be crushed. There is no need to perform crushing operations after the molding sand is collected, thereby improving production efficiency.

[0013] Furthermore, a driving groove is formed through one end of the replaceable protective frame, the driving rod is inserted through one end of the driving groove, the replaceable protective frame is attached to the inner wall of the screening barrel relative to the other side of the material passing hole, and the crushing steel ball is located outside the replaceable protective frame;

[0014] When the replaceable protective frame rotates, the replaceable protective frame is attached to one side of the screening barrel and can scrape off the molding sand blocked in the slag discharge hole to ensure the screening efficiency. The molding sand collides with the crushing steel balls until it is crushed to a suitable size and then discharged through the slag discharge hole. There is no need to perform crushing operation after the molding sand is collected, thereby improving production efficiency.

[0015] Furthermore, a material passage opening is formed through one end of the waste pool, a sewage pipe is welded through the bottom of one end of the waste pool, a driving roller is clamped through one side of the waste pool, a rotating motor is clamped and fixed to one side of the waste pool, one end of the driving roller is clamped to one side of the rotating motor, the mesh conveyor belt is attached to the outer peripheral surface of the driving roller, and the mesh conveyor belt is inserted through one side of the material passage opening;

[0016] The sieved molding sand falls onto the surface of the mesh conveyor belt. When there is residual sewage after cleaning on the surface of the molding sand and castings, the sewage can fall to the bottom of the waste pool through the mesh conveyor belt under the action of gravity and be discharged through the sewage pipe. By rotating the mesh conveyor belt driven by the rotating motor, the crushed molding sand can be moved, which is convenient for the collection and further processing of waste molding sand.

[0017] The utility model has the following beneficial effects:

[0018] The utility model provides a screening barrel and crushing steel balls, thereby solving the problem that in the process of separating castings and molding sand in a rotating drum, the molding sand is often only separated from the castings through the through holes, and the molding sand needs to be collected and then crushed by a crushing device, and since the sizes of castings are different, the sizes of the molding sand that falls off are also different. The molding sand with a larger size may be difficult to escape from the rotating drum through the through holes with a smaller size, thereby reducing the separation efficiency. When the molding sand escapes from the replaceable protective frame under the action of gravity, the molding sand collides with the crushing steel balls in the screening barrel to crush the molding sand, and the molding sand can be discharged through the slag discharge hole only after the molding sand is crushed to a suitable size. There is no need for subsequent crushing operations on the molding sand, thereby improving production efficiency.

[0019] The utility model provides a screening barrel and a replaceable protective frame, which solves the problem that when the casting and the molding sand are separated by the rotating drum, due to the different sizes and shapes of the castings, some castings may have relatively sharp protrusions. When the castings are moved by the rotation of the rotating drum, they are squeezed by other castings, which may cause the sharp protrusions of some castings to be blocked in the through holes, making it inconvenient to separate the molding sand and the casting. Although the blockage of the through holes is avoided by cleaning the rotating surface with a scraper or the like, a vertical force will be generated on the protrusions of the castings, which may cause damage to the protruding parts of the castings. When separating the casting and the molding sand, the casting and the molding sand are poured into the replaceable protective frame. The molding sand can escape from the replaceable protective frame through the feeding hole under the rotation of the replaceable protective frame and the action of its own gravity, and be crushed by the crushing steel balls and discharged through the slag discharge hole. The replaceable protective frame protects the casting to prevent the crushing steel balls from directly colliding with the casting, and the feeding hole is only slightly smaller than the size of the casting, which ensures that the molding sand can pass through quickly while reducing the probability of the casting end being blocked in the feeding hole. At the same time, the rotation of the replaceable protective frame can scrape off the molding sand blocked in the slag discharge hole to ensure screening efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural effect diagram of the utility model;

[0021] Figure 2 It is a structural schematic diagram of the utility model;

[0022] Figure 3 This is a structural diagram of the screening barrel of the utility model;

[0023] Figure 4 This is a structural diagram of the control cover and the rotary motor of the utility model;

[0024] Figure 5 This is a structural diagram of the replaceable protective frame of the utility model;

[0025] Figure 6 It is the structural diagram of the waste pool of the utility model.

[0026] Reference numerals:

[0027] 1. Screening barrel; 101. Control cover; 102. Rotating motor; 103. Maintenance cover; 104. Discharge pipe; 105. Support frame; 106. Slag discharge hole; 107. Feed hopper; 108. Driving rod; 2. Replaceable protection frame; 201. Feed hole; 202. Driving trough; 3. Waste pool; 301. Mesh conveyor belt; 302. Driving roller; 303. Feed port; 304. Rotating motor; 305. Drain pipe; 4. Crushing steel balls. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0029] See also Figure 1-6 As shown, the utility model is a rotary casting sand separation device, comprising a screening barrel 1, a replaceable protective frame 2, a waste pool 3 and crushing steel balls 4, a slag discharge hole 106 is penetrated and opened at the bottom of the outer peripheral surface of the screening barrel 1, a rotary motor 102 is arranged at one end of the screening barrel 1, a replaceable protective frame 2 is rotatably connected in the screening barrel 1, a material passing hole 201 is penetrated and opened at one side of the replaceable protective frame 2, a waste pool 3 is attached to the bottom of the outer peripheral surface of the screening barrel 1, a mesh conveyor belt 301 is penetrated and connected at one end of the waste pool 3, and a plurality of crushing steel balls 4 are arranged in the screening barrel 1;

[0030] When separating the molding sand and the casting, the replaceable protective frame 2 containing the material passing holes 201 of suitable sizes is inserted into the screening barrel 1 according to the size of the casting, and the molding sand and the casting are poured into the replaceable protective frame 2. The replaceable protective frame 2 is driven to rotate by the rotary motor 102, so that the molding sand passes through the material passing holes 201 and escapes from the replaceable protective frame 2 under the action of gravity and the rotation of the replaceable protective frame 2, while the casting is retained in the replaceable protective frame 2. The rotation of the replaceable protective frame 2 also drives the rotation of the crushing steel balls 4, so that the crushing steel balls 4 and the molding sand collide to crush the molding sand. After the molding sand is crushed to a specified size, it is discharged through the slag discharge hole 106, and the molding sand falls to the upper side of the mesh conveyor belt 301. The mesh conveyor belt 301 is driven to rotate by the rotating motor 304 to discharge the crushed molding sand. When all the molding sand is discharged, the discharge pipe 104 is opened to discharge the casting in the replaceable protective frame 2.

[0031] Among them Figure 1-4As shown, a support frame 105 is welded and fixed on the outer circumference of the screening barrel 1, a maintenance cover 103 is rotatably clamped at one end of the screening barrel 1, a discharge pipe 104 is penetrated and welded through the bottom of one side of the maintenance cover 103, a control cover 101 is clamped and fixed at one end of the screening barrel 1, a feed hopper 107 is penetrated and welded through the top of one side of the control cover 101, a rotary motor 102 is clamped on one side of the control cover 101, a drive rod 108 is clamped at one end of the rotary motor 102, the drive rod 108 is penetrated and plugged into one side of the control cover 101, the control cover 101 is located at the other end of the screening barrel 1 relative to the maintenance cover 103, and the drive rod 108 is plugged into the inner side of the screening barrel 1;

[0032] When feeding the molding sand and castings, the rotary motor 102 is controlled to drive the rotation of the driving rod 108, and further drives the replaceable protective frame 2 to rotate to the top of the screening barrel 1, so that the molding sand and castings poured into the feeding hopper 107 fall into the replaceable protective frame 2. When separating the molding sand and the castings, the rotary motor 102 drives the replaceable protective frame 2 to rotate, so that the molding sand is crushed by the crushing steel balls 4, and the sand is discharged through the slag discharge hole 106 after being crushed to a specified size. After the separation of the molding sand and the casting is completed, the replaceable protective frame 2 is controlled to rotate to the bottom of the screening barrel 1, and the discharge pipe 104 is opened to allow the casting to be discharged through the discharge pipe 104 under the action of gravity.

[0033] Among them Figure 1 , 5 As shown, a driving groove 202 is formed through one end of the replaceable protective frame 2, and the driving rod 108 is inserted through one end of the driving groove 202. The other side of the replaceable protective frame 2 relative to the material passing hole 201 is attached to the inner wall of the screening barrel 1, and the crushing steel ball 4 is located outside the replaceable protective frame 2;

[0034] According to the size of the casting being processed, take a replaceable protective frame 2 with a suitable size of the material passage hole 201 and insert it into the screening barrel 1, so that when the replaceable protective frame 2 rotates, the molding sand can quickly pass through the material passage hole 201 under the action of gravity and rotation, while the casting remains in the replaceable protective frame 2.

[0035] Among them Figure 1 , 6 As shown, a material passage opening 303 is formed through one end of the waste pool 3, a sewage discharge pipe 305 is welded through the bottom of one end of the waste pool 3, a driving roller 302 is clamped through one side of the waste pool 3, a rotating motor 304 is clamped and fixed to one side of the waste pool 3, one end of a driving roller 302 is clamped to one side of the rotating motor 304, a mesh conveyor belt 301 is attached to the outer circumference of the driving roller 302, and the mesh conveyor belt 301 is inserted through one side of the material passage opening 303;

[0036] The sieved molding sand falls onto the surface of the mesh conveyor belt 301. The residual sewage on the molding sand and casting surface falls to the bottom of the waste pool 3 through the material through hole 201, the slag discharge hole 106 and the mesh conveyor belt 301 under the action of gravity, and is discharged through the sewage pipe 305. The rotating motor 304 drives the driving roller 302 to rotate, further drives the mesh conveyor belt 301 to rotate, and moves the crushed molding sand to discharge.

[0037] The specific working principle of the utility model is as follows: according to the size of the casting being processed, the replaceable protective frame 2 with the appropriate size of the material passing hole 201 is taken and inserted into the screening barrel 1, the maintenance cover 103 is rotated to close, and the rotary motor 102 is controlled to drive the driving rod 108 to rotate, so that the replaceable protective frame 2 is rotated to the top of the screening barrel 1, and the molding sand and the casting are poured into the feeding hopper 107. The molding sand and the casting fall into the replaceable protective frame 2 under the action of gravity, and the residual sewage on the surface of the molding sand and the casting falls to the bottom of the waste pool 3 through the material passing hole 201, the slag discharge hole 106 and the mesh conveyor belt 301 under the action of gravity, and is discharged through the discharge hopper 107. The slag is discharged through the sewage pipe 305, and the rotating motor 102 drives the replaceable protective frame 2 to rotate, so that the molding sand passes through the material hole 201 and leaves the replaceable protective frame 2, and collides and crushes with the crushing steel balls 4. After being crushed to a specified size, it falls to the surface of the mesh conveyor belt 301 through the slag discharge hole 106, and the rotating motor 304 drives the driving roller 302 to rotate, further driving the rotation of the mesh conveyor belt 301, and the crushed molding sand is moved and discharged. After the separation of the molding sand and the casting is completed, the replaceable protective frame 2 is controlled to rotate to the bottom of the screening barrel 1, and the discharge pipe 104 is opened to allow the casting to be discharged through the discharge pipe 104 under the action of gravity.

[0038] The above are only preferred embodiments of the present invention and do not limit the present invention. Any modification to the technical solutions recorded in the aforementioned embodiments and any equivalent replacement of some of the technical features therein, any modification, equivalent replacement, and improvement made are all within the protection scope of the present invention.

Claims

1. A rotary casting sand separation device, comprising a screening bucket (1), a replaceable protective frame (2), a waste pool (3) and crushing steel balls (4), characterized in that: A slag discharge hole (106) is provided through the bottom of the outer peripheral surface of the screening barrel (1); a rotary motor (102) is provided at one end of the screening barrel (1); a replaceable protective frame (2) is rotatably connected in the screening barrel (1); a material passage hole (201) is provided through one side of the replaceable protective frame (2); a waste pool (3) is attached to the bottom of the outer peripheral surface of the screening barrel (1); a mesh conveyor belt (301) is provided through one end of the waste pool (3); and a plurality of crushing steel balls (4) are provided in the screening barrel (1).

2. A rotary casting sand separation device according to claim 1, characterized in that: A support frame (105) is welded and fixed to the outer peripheral surface of the screening barrel (1), a maintenance cover (103) is rotatably clamped on one end of the screening barrel (1), and a discharge pipe (104) is welded through the bottom of one side of the maintenance cover (103).

3. A rotary casting sand separation device according to claim 2, characterized in that: A control cover (101) is clamped and fixed at one end of the screening barrel (1), a feed hopper (107) is welded through the top of one side of the control cover (101), the rotary motor (102) is clamped to one side of the control cover (101), a drive rod (108) is clamped at one end of the rotary motor (102), the drive rod (108) is inserted through one side of the control cover (101), the control cover (101) is located at the other end of the screening barrel (1) relative to the maintenance cover (103), and the drive rod (108) is inserted into the inner side of the screening barrel (1).

4. A rotary casting sand separation device according to claim 3, characterized in that: A driving groove (202) is formed through one end of the replaceable protective frame (2), the driving rod (108) is inserted through one end of the driving groove (202), the other side of the replaceable protective frame (2) relative to the material passage hole (201) is attached to the inner wall of the screening barrel (1), and the crushing steel balls (4) are located outside the replaceable protective frame (2).

5. The rotary casting sand separation device according to claim 1, characterized in that: A material passage opening (303) is provided through one end of the waste pool (3), a sewage discharge pipe (305) is welded through the bottom of one end of the waste pool (3), a driving roller (302) is inserted through one side of the waste pool (3), a rotating motor (304) is fixedly inserted through one side of the waste pool (3), one end of the driving roller (302) is inserted through one side of the rotating motor (304), the mesh conveyor belt (301) is attached to the outer peripheral surface of the driving roller (302), and the mesh conveyor belt (301) is inserted through one side of the material passage opening (303).

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