CN207170846U - A kind of combined type sand sifter - Google Patents

Abstract

The utility model discloses a kind of combined type sand sifter, including spiral sand screening mechanism, oscillatory type sand screening mechanism, send sand passage；The spiral sand screening mechanism includes frame one, inwall carries screen drum, motor, the sand collecting hopper one of helical orbit；In in frame one, motor is connected the screen drum lateral support with screen drum；The sand collecting hopper one is located at the underface of screen drum；The oscillatory type sand screening mechanism includes frame two, sieve, vibrator, sand collecting hopper two；The sieve is detachable to be arranged in frame two；The vibrator is arranged at the side wall of sieve；The sand collecting hopper two is located at the underface of sieve；The position of the sieve is less than the position of sand collecting hopper one in height；It is described to send sand passage to be connected between sand collecting hopper one and sieve.The utility model combined type sand sifter has the advantages that screening effect is good, easy to operate.

Description

A kind of combined type sand sifter

Technical field

Casting technology field is the utility model is related to, is especially a kind of combined type sand sifter.

Background technology

Casting is a kind of history of mankind's grasp than metal heat processing technique, about 6000 earlier.Casting is main There are sand casting and Special Processes of Metal Castings, sand casting is exactly that the casting method of casting is produced in sand mold.Steel, iron and most of coloured Alloy-steel casting can all be obtained with sand mould casting method.Because the Modeling Material used in sand casting is cheap and easy to get, Casting mold manufacturing letter Just, the single-piece production to casting, produce by batch and largely produce and adapt to, be always the base in Foundry Production for a long time This technique.There are mulling and sieve sand in sand casting, wherein sieve sand is when being mainly reclamation of return sand, impurity such as scrap iron the inside, Blocking sand and other things are got rid of, and keep sand uniformly clean.At present, sieve sand, Yi Zhongwei mainly are carried out by two kinds of machines Spiral sand sieving machine, another kind is oscillatory type sand sieving machine.Wherein spiral sand sieving machine sieved and coordinated by the rotation of screen drum with Conveying of the helical orbit to impurity carries out sieve sand.During rotation, the sieve aperture on screen drum is easy to block the machine screen drum, institute Can be designed with general sieve aperture it is larger, to avoid sieve aperture from blocking.Oscillatory type sand sieving machine mainly by the vibration to sieve so that Normal sand is fallen from sieve aperture, and remaining impurity is stayed in sieve.Although the machine has good screening effect, sieving , it is necessary to which the artificial impurity for constantly pouring out deposition in sieve, causes operation inconvenience during sand.

In order to solve the above problems, this case is given birth to therefrom.

Utility model content

The purpose of this utility model is overcome the deficiencies in the prior art, there is provided a kind of screening effect is good, and easy to operate Combined type sand sifter.

To achieve these goals, the technical solution of the utility model is as follows：A kind of combined type sand sifter, including spiral Formula sand screening mechanism, oscillatory type sand screening mechanism, send sand passage；The spiral sand screening mechanism includes frame one, inwall carries spiral Screen drum, motor, the sand collecting hopper one of track；In in frame one, motor is connected the screen drum lateral support with screen drum；The collection Sand hopper one is located at the underface of screen drum；The oscillatory type sand screening mechanism includes frame two, sieve, vibrator, sand collecting hopper two；It is described Sieve is detachable to be arranged in frame two；The vibrator is arranged at the side wall of sieve；The sand collecting hopper two is located at sieve Underface；The position of the sieve is less than the position of sand collecting hopper one in height；It is described send sand passage be connected to sand collecting hopper one with Between sieve.

Further, the sieve aperture on the sieve is less than the sieve aperture on screen drum.

Further, the lower end for sending sand passage is located at the top of sieve.

After adopting the above technical scheme, the utility model is compared with prior art, there is advantages below：The utility model group Box-like sand sieving machine is organically combined by the way that spiral sieve sand mode and oscillatory type are sieved into sand mode, can be effectively improved screening effect Fruit, and sieve can be substantially reduced and fall the frequency of impurity, improve simple operation.

Brief description of the drawings

Fig. 1 is overall structure diagram of the present utility model.

Shown in figure：1st, frame 1, helical orbit 3, screen drum 4, motor 5, sand collecting hopper 1, rotating shaft 7, frame two 8th, sieve 9, vibrator 10, sand collecting hopper 2 11, send sand passage.

Embodiment

The utility model is further elaborated below by drawings and examples.

As shown in Figure 1：A kind of combined type sand sifter, including spiral sand screening mechanism, oscillatory type sand screening mechanism, send sand to lead to Road 11.

Spiral sand screening mechanism includes frame 1, inwall carries screen drum 3, motor 4, the sand collecting hopper 1 of helical orbit 2.Sieve Cylinder 3 is that barrel is covered with sieve aperture, and the structure of both ends open.One end of screen drum 3 is as arrival end, and the other end is as the port of export.Sieve 3 lateral supports of cylinder are in frame 1, and motor 4 is connected by rotating shaft 6 and screen drum 3, for driving screen drum 3 to rotate.Sand collecting hopper One 5 are located at the underface of screen drum 3.

Oscillatory type sand screening mechanism includes frame 27, sieve 8, vibrator 9.Sieve 8 is detachable to be arranged in frame 27. When it is implemented, sieve 8 is directly held in frame 27.Vibrator 9 is arranged at the side wall of sieve 8, for vibrating whole sieve 8.Sand collecting hopper 2 10 is located at the underface of sieve 8.The position of sieve 8 is less than the position of sand collecting hopper 1 in height.Send sand passage 11 are connected between sand collecting hopper 1 and sieve 8.Specifically, the lower end of sand passage 11 is sent to be located at the top of sieve 8.

In order to further improve screening precision, screening effect is improved, in the present embodiment, the sieve aperture on sieve 8 is less than screen drum 3 On sieve aperture.

When the utility model combined type sand sieving machine works, sand to be sieved enters from the arrival end of screen drum 3, with screen drum 3 rotation, sand are passed through from the sieve aperture of screen drum 3 and fallen into sand collecting hopper 1, complete first time scalping.The impurity being sized out exists It is fed forward in the presence of helical orbit 2, is finally exported from the port of export of screen drum 3.Then, the sand in sand collecting hopper 1 passes through Send sand passage 11 to fall into sieve 8, through sift out 8 vibrosieve after from the sieve aperture of sieve 8 through falling into sand collecting hopper 2 10 It is interior, complete second of fine screen.By first time scalping and second of fine screen, screening effect can be effectively improved.And by sieve 8 The impurity screened out is few, can substantially reduce sieve 8 fall impurity frequency, improve simple operation.

Foundation embodiment described above is enlightenment, and by above-mentioned description, relevant staff completely can be not In the range of deviateing this invention thought, various changes and amendments are carried out.The technical scope of this item utility model is not The content being confined on specification, it is necessary to which its scope protected is determined according to right.

Claims (3)

1. A kind of 1. combined type sand sifter, it is characterised in that：Including spiral sand screening mechanism, oscillatory type sand screening mechanism, sand is sent to lead to Road；The spiral sand screening mechanism includes frame one, inwall carries screen drum, motor, the sand collecting hopper one of helical orbit；The screen drum In in frame one, motor is connected lateral support with screen drum；The sand collecting hopper one is located at the underface of screen drum；The oscillatory type Sand screening mechanism includes frame two, sieve, vibrator, sand collecting hopper two；The sieve is detachable to be arranged in frame two；It is described to shake Dynamic device is arranged at the side wall of sieve；The sand collecting hopper two is located at the underface of sieve；The position of the sieve is less than in height The position of sand collecting hopper one；It is described to send sand passage to be connected between sand collecting hopper and sieve.
2. A kind of 2. combined type sand sifter according to claim 1, it is characterised in that：Sieve aperture on the sieve is less than sieve Sieve aperture on cylinder.
3. A kind of 3. combined type sand sifter according to claim 1, it is characterised in that：The lower end for sending sand passage is located at The top of sieve.