CN211101402U

CN211101402U - Sorting system

Info

Publication number: CN211101402U
Application number: CN201921537547.XU
Authority: CN
Inventors: 胡忠发; 胡适
Original assignee: Huangshan Zhongfa Wear Resistant Material Co ltd
Current assignee: Huangshan Zhongfa wear resistant material technology Co.,Ltd.
Priority date: 2019-09-16
Filing date: 2019-09-16
Publication date: 2020-07-28
Anticipated expiration: 2029-09-16

Abstract

The utility model provides a sorting system, sorting system improves letter sorting efficiency to the packing sand that mixes together and the quick letter sorting of casting microballon product. The machine frame is provided with a first screen and a second screen which are obliquely arranged, the net surface of the second screen is arranged below the first screen, the vibration exciter drives the first screen and the second screen to vibrate, the meshes of the first screen are smaller than the diameter of microspheres to be sorted and larger than the grain diameter of sand, the holes of the second screen are smaller than the grain diameter of sand, and the discharge ends of the first screen and the second screen are arranged in a staggered manner. Through first, two screen cloth vibratory screening, the casting microballon product is separated with sand, even if mix in the casting microballon product and have pouring waste material, it also is a small amount and easy and microballon casting finished product letter sorting, the utility model discloses have and show and improve letter sorting efficiency, and the hourglass phenomenon of choosing.

Description

Sorting system

Technical Field

The utility model belongs to the casting field, concretely relates to use letter sorting system of tectorial membrane sand casting microballon.

Background

The method is characterized in that a precoated sand mold is used for producing micro parts such as microspheres and the like, a sand burying negative pressure pouring mode is generally adopted, namely a proper number of unit molds are attached together and fixed into a group of pouring molds by using an end plate and a pull rod connected with the end plate as a clamp, the plurality of groups of pouring molds form the precoated sand mold and are placed in a box body, then filling sand is buried, the filling sand is made of common external molding sand, the filling sand is buried at the height position of a box opening of the box body and is additionally provided with a layer of film, and the film can be spread with a certain amount of sand to.

In the actual pouring process, after pouring is completed and cooling is carried out, the clamp for clamping the coated sand mold is communicated with the coated sand mold and is lifted out of the sand box and placed on the ground, a large number of cast products are lifted out together, due to ablation of the coated sand mold made of resin by high temperature, the breakage phenomenon of the coated sand mold is inevitable, and therefore part of microbead cast products are left in filling sand in the sand box, in addition, the filling sand in the area where the microbead cast products are possibly left is required to be shoveled out together by shovels and other tools, the microbead cast products left in the filling sand are sorted out by manual operation, sorting efficiency is low, and labor intensity is high.

After the casting is finished, a large amount of external molding sand, namely filling sand, carbonized and fallen film-coated sand mold residual blocks and film-pressing sand are mixed together, the external molding sand is difficult to recycle, and the manufacturing cost of the product is increased.

Before pouring and boxing again, the sand box needs to be emptied, an electric hoist or a travelling crane is generally adopted, a steel wire rope hook is hung on a hanging ring on the outer wall of the sand box or a hanging shaft pin is used for lifting one side of the sand box to tip the sand box, on one hand, the posture of the sand box is difficult to control in the tipping process, and serious potential safety hazards exist; in another aspect; the commingled sand also requires a significant amount of cleaning work.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a letter sorting system, letter sorting system improves letter sorting efficiency to the packing sand that mixes together and the quick letter sorting of casting microballon product.

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

a sorting system, characterized by: the machine frame is elastically supported with a first screen, the screen surface of the first screen is obliquely arranged, the vibration exciter drives the first screen to vibrate, and the mesh of the first screen is smaller than the diameter of the microspheres to be sorted and larger than the grain size of sand grains.

Among the above-mentioned scheme, in view of having selected suitable mesh aperture and will mixing sand, casting product and tectorial membrane sand tail waste sand together and empty on the screen cloth, through first screen cloth vibration screening, casting microballon product and sand separation come, even if mix in the casting microballon product and have pouring the waste material, it also is a small amount and easy and microballon casting finished product letter sorting, the utility model discloses have and show and improve letter sorting efficiency, and the hourglass does not select the phenomenon.

Drawings

FIGS. 1 and 2 are schematic diagrams of the present system;

fig. 3 and 4 are perspective views of the sieving section in the present system.

Detailed Description

A sorting system is characterized in that a first screen 20 is elastically supported on a rack 10, the screen surface of the first screen 20 is obliquely arranged, a vibration exciter drives the first screen 20 to vibrate, and the meshes of the first screen 20 are smaller than the diameter of microspheres to be sorted and larger than the grain diameter of sand grains. The above described solution has achieved the separation of the cast microspheres from the sand grains, purely from a sorting point of view.

Because the sand is also mixed with ash components with large particle size difference, a further separation effect is necessary, the preferable scheme is that a layer of screen is additionally arranged on the first screen 20, namely the first screen 20 and the

second screen

20 and 30 are elastically supported on the frame 10, the net surfaces of the first screen 20 and the second screen 30 are obliquely arranged, the net surface of the second screen 30 is arranged below the first screen 20 in a supporting manner, the vibration exciter drives the first screen 20 and the second screen 30 to vibrate, the mesh of the first screen 20 is smaller than the diameter of microspheres to be sorted and larger than the particle size of sand particles, the aperture of the second screen 30 is smaller than the particle size of sand particles, and the discharge ends of the first screen 20 and the second screen 30 are arranged in a staggered manner.

In the above scheme, the frame 10 is provided with the spring 1 to support and connect the first and

second screens

20 and 30, and the

vibration exciters

2 and 3 are respectively arranged on the first and

second screens

20 and 30, as shown in fig. 3 and 4.

In the prior art, the filled sand in the sand box and the casting products mixed in the filled sand are directly poured on the ground, the sand is manually sorted after being cooled, the time consumption for waiting to be cooled to the room temperature is long, and the temperature when the sand is generally sorted is higher than the environmental temperature, so the manual work and physical consumption are huge, and the contradiction of the two difficulties is difficult to simultaneously solve. The utility model discloses need not to wait for the sand body cooling to the room temperature state just can directly empty to the screen cloth on, through the letter sorting of first, two

screen cloth

20, 30, the microballon foundry goods is intercepted by first screen cloth 20 and is guided to in the basin 4. The materials with smaller particle size including the filling sand pass through the mesh of the first screen mesh 20 and fall onto the mesh surface of the second screen mesh 30, and the sand particles with larger particle size mainly including the filling sand are intercepted by the second screen mesh 30 and guided and discharged from the lower end, so that the materials mixed together are screened by the first and

second screen meshes

20 and 30, and the casting products, the casting sand and the ash particles are rapidly separated.

In order to raise the efficiency, through turning device with the sand box upset, the material in it is directly emptyd, the utility model discloses having add protection network 40, having arranged protection network 40 above first screen cloth 20 promptly, protection network 40's mesh supplies to wait to sort the microballon and passes through, intercepts and water the waste material, and protection network 40's wire side is unanimous or reverse or the slant of side direction arranges with first screen cloth 20.

The protective net 40 arranged above the first screen 20 can be made of steel plates with proper thickness to improve the bearing capacity of the protective net, the processing precision of meshes of the protective net is not required to be too high, pouring wastes such as pouring wastes at a pouring gate part can be intercepted into a strip shape, so that the task of the first screen 20 is simply to intercept microspheres, the requirement on the bearing strength of the first screen 20 is also remarkably reduced, the protective net is made of thin-wall steel plates, and the processing amount of the first screen 20 can be remarkably reduced due to the fact that the aperture of the meshes of the first screen 20 is high in requirement, and meanwhile, the service life of the first screen 20 is prolonged due to the protection effect of the protective net 40.

After the casting is finished, the precoated sand is mixed in the filling sand, the particle size of the precoated sand is smaller than that of the filling sand, and ash content with smaller particle size is obtained, so that the ash bearing plate 50 is additionally arranged below the second screen 30, namely, the plate surface of the ash bearing plate 50 is arranged below the second screen 30 in a bearing manner, and the plate surface of the ash bearing plate 50 and the second screen 30 are arranged in a consistent or opposite or lateral oblique manner. The ash bearing plate 50 is of a material guide chute structure, and an ash bucket is placed below the discharge side of the lower end of the ash bearing plate to receive materials.

The dust falling through the second screen 30 can be collected, and the mesh size of the second screen 30 can meet the requirement of screening the precoated sand and the packed sand when being set properly, because the precoated sand can be recycled separately. The specific scheme is that a layer of screen mesh can be additionally arranged below the second screen mesh 30 to intercept precoated sand and separate dust.

The first screen 20 is connected to the peripheral portion of the protection net 40, the oblique directions of the first screen 20 and the protection net 40 are the same, and the first screen 20 at the lower end and the protection net 40 are arranged separately from each other. Therefore, the collection of the microsphere casting is facilitated, and the collection and the cleaning of massive casting waste are also facilitated.

The first screen 20 and the guard net 40 have enclosing plates 60 at the rear end of the high side and the peripheral parts of the two sides, and the enclosing plates 60 extend upward to the two sides and above the rear side of the guard net 40. The arrangement of the coaming 60 can ensure that materials fall from the side part of the protective net 40 when the sand box is tipped over, and also has the function of simultaneously connecting the first screen mesh 20 with the protective net 40, and the number of the vibration exciters is reduced. According to the scheme, the first screen 20 and the protective screen 40 are connected into a whole, so that the first screen 20 and the protective screen 40 share the vibration exciter 2, and if the first screen and the protective screen are connected in a non-integrated mode, the vibration exciter can be arranged for the protective screen 40 independently.

In order to facilitate the collection of the screened materials, the screen surfaces of the first screen 20 and the second screen 30 are arranged in a consistent or reverse or lateral oblique manner, preferably in a turn-back manner, and the turn-back manner shown in fig. 3 and 4 can improve the utilization rate of the upper and lower spaces and reduce the occupied area of the plane.

As mentioned in the foregoing, the sand box material is poured onto the sieving unit as a whole for improving efficiency, and in addition, the vibration of the sieve screen is driven by the

vibration exciters

2 and 3 during sieving, so that the escape of smoke and dust is inevitable, and in order to reduce the environmental pressure, the frame 10 and the first and

second sieve screens

20 and 30 are disposed in the machine case 70, and the upper portion of the machine case 70 is connected to the dust collecting box 100 beside the machine case 70. Thus, the smoke dust is collected and covered for the subsequent dust removal operation.

In order to recycle the filling sand and the precoated sand, the discharging end of the second screen 30 is connected with a chute 71 passing through the wall of the case 70, the discharging end of the chute 71 extends to the receiving position of the bucket elevator 80, and the discharging end of the bucket elevator 80 is connected with the feeding port of the sand box bin 90.

The utility model discloses not only at first solved the letter sorting work of microballon foundry goods, still solved the recycle problem of dust removal and foundry sand in the lump.

Claims

1. A sorting system, characterized by: a first screen (20) is elastically supported on the rack (10), the screen surface of the first screen (20) is obliquely arranged, the vibration exciter drives the first screen (20) to vibrate, and the meshes of the first screen (20) are smaller than the diameter of microspheres to be sorted and larger than the grain size of sand grains.

2. The sortation system as claimed in claim 1, wherein: the machine frame (10) is elastically supported with a first screen and a second screen (20 and 30), the screen surfaces of the first screen and the second screen (20 and 30) are obliquely arranged, the screen surface of the second screen (30) is arranged below the first screen (20) in a supporting manner, the vibration exciter drives the first screen and the second screen (20 and 30) to vibrate, the aperture of the second screen (30) is smaller than the grain diameter of sand grains, and the discharge ends of the first screen and the second screen (20 and 30) are arranged in a staggered manner.

3. Sorting system according to claim 1 or 2, characterised in that: a protective net (40) is arranged above the first screen (20), meshes of the protective net (40) are used for microspheres to be sorted to pass through and intercept runner waste, and the net surface of the protective net (40) and the first screen (20) are obliquely arranged in the same direction or in the opposite direction.

4. The sortation system as claimed in claim 2, wherein: the plate surface of the ash bearing plate (50) is arranged below the second screen (30) in a bearing manner, and the plate surface of the ash bearing plate (50) and the second screen (30) are obliquely arranged in the same direction or in the opposite direction.

5. The sortation system as claimed in claim 3, wherein: the first screen (20) is connected with the peripheral part of the protective net (40) and the oblique directions of the first screen and the protective net are consistent, and the first screen (20) at the lower end and the protective net (40) are arranged in a mutually separated mode.

6. The sortation system as claimed in claim 5, wherein: enclosing plates (60) are arranged at the rear ends of the high-position sides and the peripheral parts of the two side parts of the first screen (20) and the protective net (40), and the enclosing plates (60) extend upwards to the two sides and the upper part of the rear side of the protective net (40).

7. The sortation system as claimed in claim 2, wherein: the screen surfaces of the first screen (20) and the second screen (30) are arranged in a consistent or reverse oblique manner.

8. The sortation system as claimed in claim 2, wherein: the frame (10) and the first and second screens (20, 30) are arranged in the case (70), and the upper part of the case (70) is connected with a dust collection box (100) beside the case (70) through an exhaust pipeline (101).

9. The sortation system as claimed in claim 8, wherein: the discharging end of the second screen (30) is connected with a chute (71) passing through the wall of the case (70), the discharging end of the chute (71) extends to the receiving position of the bucket elevator (80), and the discharging end of the bucket elevator (80) is connected with the feeding port of the sand box bin (90).