JPH0631433A - Rolling cleaning device for casting - Google Patents

Abstract

PURPOSE:To provide a rolling cleaning device for casting, in which sand, etc., is removed from the casting and at the same time, the product can efficiently be cooled and working environment is kept clean because dust, etc., is not generated. CONSTITUTION:This device is composed of a rolling drum device 20 for separating the sand, etc., stuck to the surface of the casting from the casting by charging the casting just after casting into the drum body 21, a cooling part 30 arranged at one or plural optional positions in the drum body and a cooling device 40 arranged in the cooling part. The cooling device is contained of a water supplying part 41 for supplying the cooling water W into the cooling part from the upper part of the drum body and a water receiving part 45 for receiving the cooling water flowing down the drum surface at the lower part of the drum body.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rolling purifying device for castings, and more particularly to a rolling purifying device having a cooling device.

[0002]

2. Description of the Related Art Heretofore, various rolling cleaning devices have been proposed for removing sand, burrs and the like from cast products immediately after casting.

According to Japanese Patent Publication No. 54-39065, for example, a cylindrical body, a device for imparting rotation to the cylindrical body, a bearing device for supporting the cylindrical body during its rotation, and the cylindrical body rotate together. There has been proposed a purifying device including a perforated surface, a spiral rib provided on an inner surface of the perforated surface, and a blade member.

According to this apparatus, a cast product immediately after casting is introduced from the inlet side onto a perforated surface together with a metal-like diamond-shaped small piece called media, and the surface of sand or burrs is rotated by rotating the cylindrical body. Is removed and is sent to the outlet in the longitudinal direction of the cylinder along the spiral rib.
The removed sand, burrs, and the like fall into the cylindrical body from the perforated surface, and are returned by the blade member toward the inlet of the rear portion of the cylindrical body for recovery.

By the way, since such a cast product immediately after casting is still at a high temperature, it is necessary to appropriately cool it when shifting to the next step. As the cooling means, conventionally, for example, a water spray nozzle is provided in the cylindrical body to spray water on a cast product in a shower shape.

However, in this conventional structure, since water is directly sprayed on the hot casting, the water instantly becomes steam and a large amount of sand and dust rises. Therefore, it is necessary to connect a dust collector to the cylindrical body and discharge the sand and dust containing a large amount of water vapor.

However, sand and dust containing a large amount of water vapor adhere to the ducts of the dust collectors and the surfaces of the equipment to be contaminated, and cleaning thereof is not easy, and not only the function of the dust collectors deteriorates, but also the factory. The problem is that it significantly deteriorates the environment.

Further, there is a problem that the sand containing water adheres to the product again, which not only deteriorates the cooling efficiency but also takes time and effort for separation.

[0009]

SUMMARY OF THE INVENTION The present invention has been proposed in view of the above-mentioned problems, and can remove sand and the like from a cast product and at the same time effectively cool the product, and dust and the like. It is intended to provide a rolling purification device for a cast product, which can maintain a good working environment because it does not generate the above.

[0010]

That is, the present invention is
A rolling drum device for introducing a casting product immediately after casting into the drum body to separate sand and the like adhering to the surface of the casting product from the casting product, and one or any one of them at any position of the drum body. The cooling device includes a cooling unit provided at a plurality of locations, and a cooling device provided in the cooling unit. The cooling device includes a water supply unit that supplies cooling water to the cooling unit from above the drum body, and a cooling unit provided below the drum body. And a water receiving portion for receiving cooling water flowing down on the surface of the drum.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to the accompanying drawings. 1 is a perspective view showing an example of a rolling purification device for a cast product according to the present invention, FIG. 2 is a sectional view taken along line 2-2 thereof, FIG. 3 is a sectional view taken along line 3-3 of FIG. 1, and FIG. 5 is a perspective view showing an example of a drive unit of a rolling drum device, FIG. 6 is a sectional view showing another example of the device of the present invention, and FIG. 7 is an example of a cooling unit thereof. It is a perspective view shown.

As shown in FIGS. 1 and 2, the rolling purifying apparatus 10 for castings according to the present invention includes a rolling drum apparatus 20.
The cooling unit 30 and the cooling device 40 separate the sand and burrs adhering to the surface of the cast product from the product while cooling the cast product. In addition, reference numeral 11 in the drawing is a shooting chute, 12
Is a vibrator for vibrating the charging chute 11, 1
Reference numeral 3 is a casting product take-out section, and C is a sand recovery conveyor.

The rolling drum device 20 comprises a drum body 21 and a substantially concentric cylindrical body 25 arranged in the drum body 21.

The drum main body 21 is formed in a substantially cylindrical shape, has an inlet 22 and an outlet 23 for casting products, and is configured to roll by a drive unit 50. Reference numerals 14 and 1
Reference numeral 7 denotes a dust collecting cover, which has dust collecting ports 15 and 18 at its upper part and sand and other collecting ports 16 and 19 at its lower part.

The tubular body 25 is composed of a main body 26 having a small hole 27 formed on the entire surface thereof, and is rolled integrally with the drum main body 21 by the driving portion 50.

On the inner surface and outer surface of the main body 26, spiral ribs 28, 29 are integrally formed so as to extend in the longitudinal direction of the cylindrical body. The spiral ribs 28 and 29 are provided in the tubular body 2
Along with the rolling of No. 5, the cast product is transferred toward the outlet 13 and the sand and the like separated from the cast product are collected at the recovery port 1
6 and 19, and is formed on the front and back surfaces of the main body 26 with appropriate inclined surfaces.

Here, the drive mechanism of the rolling drum device 20 will be described. As can be better understood from FIG. 5, the drum body 21 has a gear 55 formed in the circumferential direction of the outer peripheral surface thereof, and a drive unit 5 is provided via a chain 56.
It is linked to 0.

The drive unit 50 is a drive unit main body 51 such as a motor.
And a transmission unit 52, which appropriately changes the rotational movement of the drive unit main body 51 and transmits the rotational movement to the drum main body 21.
1 is rotated.

The motion generated by the drive unit 50 is not limited to rotation, but may be converted into vibration motion or rocking motion depending on the size and shape of the cast product to be purified. It is possible.

Immediately after casting, the cast product is introduced into the cylindrical body 25 in the drum body 21 from the charging port 12, and is rolled by the operation of the driving unit 50 to separate the sand on the surface.
In order to further promote the separation, the tubular body 25
It is also possible to put a small diamond-shaped metal piece such as a media inside and roll it together with the cast product.

As shown in FIGS. 3 and 4, a cooling unit 30 is provided on the drum body 21, and cooling water W supplied from a cooling device 40, which will be described later, is sprinkled on the drum body 21. The casting that passes through is cooled. The cooling unit 30 can be provided at one or a plurality of positions on the drum body 21 at any position having a high cooling efficiency according to the size and amount of the cast product to be cooled. In this embodiment, the drum body is provided. It is provided in one place near the center.

As shown in FIG. 4, the cooling unit 30 is provided.
Water stop rings 35, 35 are provided on both sides of the drum main body 21 in the outer peripheral direction. This water stop ring part 3
Reference numerals 5 and 35 are rib portions projecting outward from the drum main body 21 to prevent the cooling water W discharged from the water spray nozzle 42 of the cooling device 40 from splashing around and polluting the floor and the like. The cooling water can be concentrated in the cooling unit 30 to improve the cooling efficiency.

The cooling device 40 is composed of a water supply unit 41 provided above the cooling unit 30 and a water receiving unit 45 provided below the cooling unit 30, and they are connected to each other via a water cooling mechanism 60.

The water supply unit 41 supplies the cooling water W to the cooling unit 30.
And a cooling water W supplied from the water cooling mechanism 60.
Spray to 0 and cool.

The water receiving portion 45 comprises a water tank portion 46 for receiving the cooling water W flowing down on the surface of the cooling portion 30, and has an overflow drainage port 47 and circulation drainage ports 48, 49. Reference numeral 65 is a thermometer, and 66 is a level sensor.

The water cooling mechanism 60 is for connecting the water supply section 41 and the water receiving section 45 to cool the cooling water W accumulated in the water receiving section 45 for circulation and reuse. A circulation pump, 62 is a solenoid valve for water supply, 63 is a solenoid valve for drainage,
64 is a cooling tower.

Cooling water W such as tap water is supplied by a solenoid valve 62 for water supply.
Is sprayed from the water supply nozzle 42, flows down the surface of the cooling section 30 of the drum body 21, and is stored in the water receiving section 45. The collected cooling water W is sent from the circulation drainage port 48 to the cooling tower 64 by the circulation pump 61 of the water cooling mechanism 60, cooled to a predetermined cooling water temperature, and sent to the water supply unit 41 again.

Further, the temperature of the cooling water W in the water tank portion 46 is sensed by the thermometer 65, and when the temperature is higher than a certain level, the water supply solenoid valve 62 of the water cooling mechanism 60 opens and the water supply portion 41. Water discharge is promoted to enhance cooling efficiency.

Further, the level sensor 66 has a water receiving portion 45.
The water level of the cooling water W accumulated inside is sensed, and the drainage solenoid valve 63 is operated according to the height to open and close the drainage port 49 to adjust the water level in the water tank portion 46.

Further, as shown by the chain line in the figure, it is desirable to cover the periphery of the cooling section 30 with a water splash prevention cover 67 to prevent the splash of cooling water and perform efficient cooling.

The cast product cooled by passing through the inside of the drum body 21 is discharged from the outlet 13. Further, the separated sand and media fall into the drum main body 21 through the small holes 27 of the tubular body 25, and are collected by the spiral rib 29 in the recovery port 17.
Moved to and collected.

Rolling purification device 1 shown in FIGS. 6 and 7.
00 shows another example of the device of the present invention. Reference numeral 111 is a rolling drum device, 112 is a drum body, 11
3 is a cylindrical body, 120 is a cooling unit, 130 is a cooling device, 13
1 is a water supply unit, 135 is a water receiving unit, 140 is the cooling unit 12
It is a water splash prevention cover that covers 0. In the figure, the same reference numerals as those in FIG. 3 denote the same members.

In this embodiment, the cooling unit 120 has a plurality of fins 1 along the rotation direction of the drum body 112.
21, 121, 121, ... Are formed,
Water stop rings 122, 122 are formed on both sides thereof.

The fin 121 has a middle bent portion 123 near the center thereof, which is bent in the drum rotation direction.
The heat dissipation effect of the cooling unit 120 is enhanced, and with the rotation of the drum main body 112, the cooling water W collected in the water receiving unit 135 is pumped and flows down the outer circumference of the drum main body 112. Thereby, a higher cooling effect can be obtained.

[0035]

As shown and described above, according to the rolling purification apparatus for a cast product of the present invention, the cast product is cooled from the outside of the drum body, so that the rise of water vapor and dust due to the spraying of the cooling water is prevented. It can be kept to a minimum and a good working environment can be maintained. Further, since the separated sand does not contain water, it can be effectively cooled without adhering to the product and can be easily reused.

[Brief description of drawings]

FIG. 1 is a perspective view showing an example of a rolling purification device for a cast product according to the present invention.

FIG. 2 is a sectional view taken along the line 2-2.

FIG. 3 is a sectional view taken along line 3-3 of FIG.

FIG. 4 is a perspective view showing an example of a cooling unit.

FIG. 5 is a schematic perspective view showing an example of a drive unit of a rolling drum device.

FIG. 6 is a sectional view showing another example of the device of the present invention.

FIG. 7 is a perspective view showing an example of the cooling unit.

[Explanation of symbols]

 10 Rolling Purification Device 20 Rolling Drum Device 21 Drum Main Body 30 Cooling Section 35 Water Stop Ring 40 Cooling Device 41 Water Supply Section 45 Water Receiving Section 60 Water Cooling Mechanism

Claims (5)

[Claims] 1. A rolling drum device for introducing a cast product immediately after casting into a drum body to separate sand or the like adhering to the surface of the cast product from the cast product, and an optional drum body. A cooling unit provided at one or a plurality of positions at a position, a cooling device provided in the cooling unit, the cooling device, a water supply unit that supplies cooling water from above the drum body to the cooling unit, A rolling purification device for a cast product, comprising: a water receiving portion that receives cooling water flowing down on the surface of the drum below the drum body. 2. The rolling purification device for a cast product according to claim 1, which has water blocking ring portions on both sides of the cooling portion. 3. The rolling purification device for a cast product according to claim 1, wherein the cooling part is provided with fins. 4. The rolling purification device for a cast product according to claim 1, wherein the cooling portion is covered with a water splash prevention cover. 5. The rolling purification device for a cast product according to claim 1, wherein the water supply unit and the water reception unit are connected to each other via a water cooling mechanism.