JPH10277696A - Equipment for recovering, separating and recollecting waste materials in post-casting finishing stage - Google Patents

Abstract

PROBLEM TO BE SOLVED: To surely recover waste materials, such as chips, and to separate and recollect these waste materials by respective kinds by disposing a deburring device, a sprue cutting device and waste material conveyors for ejecting the chips, cut pieces and molding sand respectively discharged below a handling device to the waste material separating and integrating equipment. SOLUTION: The chips C and cut pieces D formed by processing in the deburring device 1b and the sprue cutting device 1c are respectively discharged from chutes 3b, 3d onto the waste material conveyor 8. The molding sand B, chips C, etc., adhered to a work 1e and the handling device 1d splash to the entire part of a post-casting finishing system 1. Since the system is installed on a grating-shaped floor plate 2, the molding sand B and the chips c pass the grating-shaped floor plate 2 and are discharged onto the waste material conveyor 8 via an under-the-floor chute 7. The molding sand B, the chips C and the cut pieces D are transported to the waste material separating and recollecting device 9 and are collected respectively into a molding sand recovering can 24, a chip recovering can 25 and cut piece recovering can 26.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a post-casting finishing process, which collects, separates and re-integrates waste of molding sand, cutting chips and cut pieces scattered during processing in each processing step and during handling between the steps. About the method.

[0002]

2. Description of the Related Art In a finishing process after casting, a technique of collecting and transporting only each waste material generated in each processing step is known, but waste material scattered from a work and a handling device during handling between processes, Alternatively, the collection of cuttings scattered around during the cutting process does not remain, and generally, waste materials accumulated by daily cleaning by an operator are disposed of. In addition, it is customary to reuse casting sand, cutting chips, and cutting waste among waste materials of cutting pieces,
Therefore, it is required to efficiently separate and re-collect the collected waste materials. As a technique that can be applied to solve this problem, there is Japanese Utility Model Application No. Sho 62-19390 that separates a casting from a casting sand or a lump of foundry sand. (See Fig. 6)

According to the present invention, there is provided a receiving box 30 having an inner bottom surface 29 inclined downward from the rear end to the front end. At the rear end of the receiving box 30, a top surface on which a casting X to which casting sand adheres is placed has a horizontal projection. And a casting sand separating plate 32 formed of a punching metal having a large number of pores located below the inner bottom surface 29 at an appropriate distance from the inner bottom surface 29.
At the front end, a vertical wall 33 extending upwardly of the front side wall and having an upper end bent vertically or rearward is formed, and a sand crushing portion 39 for storing and crushing the sand lumps A is formed. The receiving box 30 is attached to the fixed base 34 via a number of springs 35, and two vibration motors 36 are suspended from the center or both sides of the outer bottom surface of the receiving box 30 to form vibration means. .

[0004] Now, a casting is supplied onto the projection 31,
When the receiving box 30 is vibrated obliquely up and down by the vibration motor 36, the casting sand X and the casting sand B are separated from the casting X by the impact of the collision between the casting X and the protruding body 31, and are separated. The casting sand B passes through the pores of the casting sand separating plate 32 and the casting sand discharge path 37 formed by the casting sand separating plate 32 and the inner bottom surface 30.
And is conveyed toward the front end of the receiving box 30 by the conveying action of the inclined inner bottom surface 29, and the casting sand discharge port 38
It is discharged and collected sequentially.

On the other hand, the casting sand block A remaining on the casting sand separation plate 32 is conveyed on the casting sand separation plate 32 toward the front end of the receiving box 30 and is accumulated in the casting sand block crushing section 39. Is broken by the mutual friction of the sand mass A due to the action of the vibration force,
The finely divided material sequentially passes through the pores of the casting sand separating plate 32 and is discharged and collected from the casting sand discharge port 38. Assuming that the casting X is regarded as the cut piece D and the cutting chips C are also introduced into the receiving box 30, the crushing is completed and the finely divided casting sand B is obtained.
Are completely discharged, the cut pieces D are left on the protrusions 31 and the cutting chips C are left on the casting sand separating plate 32 in a separated state.

[0006]

According to the above-mentioned prior art, daily cleaning work of accumulated waste material and equipment trouble caused by the waste material contribute to a reduction in productivity. In addition, regarding the separation and re-accumulation of the collected mixed waste material, in the above-mentioned invention, the casting X, the casting sand ingot A,
All the casting sand B is put into the same receiving box 30, and the vibration motor 3
6, the receiving box 30 is vibrated and separated. However, in this structure, the volume and weight of the object to be vibrated are large, the power of the vibration motor 36 is increased, and not only the equipment cost is increased but also a noise problem is caused. It also leads to worsening of the working environment.
In addition, the casting sand mass is affected by various factors such as the molding method at the time of molding the original core, the molding sand used, the type and strength of the coupling agent, the casting temperature, the elapsed time after casting, and the like. The fragmentation of the casting sand ingot A due to the lack of certainty may cause the equipment capacity to be insufficient.

SUMMARY OF THE INVENTION It is an object of the present invention to provide, in a post-casting finishing step, casting sand, cutting chips, cut pieces generated during processing in each processing step, casting sand, cutting chips flying from a work or a handling device during handling between processes. Another object of the present invention is to provide a means for reliably collecting cutting chips scattered around during a cutting process, and a waste material separating / re-accumulating apparatus for separating and re-accumulating the collected casting sand, cutting chips, and cut pieces.

The gist of the invention is as follows: (1) a sand remover for finishing a workpiece after casting;
In the post-casting finishing step of a cast product composed of a deburring device, a sluice cutting device, a handling device, etc., a crushing device for a casting sand block is provided below the sand removal device, and granular sand discharged from the device is removed. In addition to being configured to be transported to a waste material collection / separation / re-integration facility provided outside the system via a powder transport pipe, cutting debris respectively discharged below the deburring device, the sluice cutting device and the handling device, To carry out the cut pieces and the casting sand to the waste material separation and accumulation equipment,
Waste material collection / separation / re-integration equipment in the post-casting finishing process, which is equipped with a waste material conveyor.

(2) Combination of a fixed bar composed of a plurality of parallel plates at the top and a rocking bar composed of a plurality of parallel plates and swinging up and down and up and down. The lower part of the diaphragm, which has a large number of pores on its surface and can vibrate diagonally up and down, is installed under it. (1) The waste material separating / re-accumulating device is constituted by separating the cut pieces by the fixed beam and the swinging beam and separating and re-accumulating the casting sand and the cutting chips by the diaphragm. It is in the waste material recovery / separation / reintegration equipment in the post-casting finishing process described above.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS First, an overall configuration will be described with reference to FIG. A known post-casting finishing system 1 including a sand removing device 1a, a deburring device 1b, a sluice cutting device 1c, and a handling device 1d, which is configured to finish the workpiece 1e after casting, is installed on the grid floor plate 2. , Sand removal equipment 1
A crushed sand block composed of cylindrical bodies 4a and 4b having a plurality of projections on the surface which is rotated at the same speed in different directions by a rotating device (not shown) through a chute 3a below a. A powder transport pipe 6 provided with an apparatus 4 and further having a compressed air supply port 5 connected below the apparatus, is a casting sand accumulation can located under a waste material separation / reintegration apparatus 9 while being bent freely. Up to 24 are configured continuously. Deburring device 1b
And chutes 3c, 3c are provided below the sluice cutting device 1c, and the chute 3b
An underfloor chute 7 having an upper end is provided on the entire outer periphery of the waste material conveyor. Below the chute, a waste material conveyor 8 whose front is inclined upwards extends to a position above the waste material separating / re-accumulating device 9.

Next, a detailed configuration of the waste material separating / re-integrating apparatus will be described with reference to FIGS. At the top, several plates 10
a to 10f are arranged in parallel at appropriate intervals and the base 12
And a plurality of plates 11a to 1
1e are arranged in parallel at appropriate intervals, and the front end is pin 1
3. The pin 18a is supported by the link 14 and the pin 15 and the rear end of the eccentric boss 18 is pivoted in the same direction via the chain 17 by the pivoting device 16 at a position appropriately spaced from the rotation center of the eccentric boss 18. Swing bar 1 that is connected and can swing up and down and up and down
1, the plates 10a to 10f and the plates 11a to 11e are combined so as to be alternately arranged, and are installed with the front end inclined downward. Below this part, a large number of pores are formed in the surface, and a diaphragm 21 suspended at the front end by a tension spring 20 having a front end supported by a pin 19 and the other end to the base 12 has a front end inclined downward. It has a cam roll 22 at the rear end,
Two cam plates 18b provided on the eccentric boss 18 described above,
18c. Below the waste material separation / reintegration device 9, a casting sand collecting can 24, a cutting waste collecting can 25, and a cut piece collecting can 26 are provided.

An operation example of the present invention will be described below with reference to FIGS. The casting sand block A generated from the work 1e by the processing by the sand removing device 1a is supplied to the casting sand block crushing device 4 by the chute 3a, and is rotated in different directions by a rotating device (not shown) in the device. The cylindrical bodies 4a and 4b each having a plurality of projections on the two surfaces are crushed by tangential force or compressive force to become granular sand E and become cylindrical sand 4.
It is discharged from the gap between a and 4b. At this time, the cylindrical body 4
The rotation direction of a, 4b is such that the tangential force at the mutual contact point is
The direction must be downward. Cylindrical body 4a,
The granular sand E discharged from the 4b flows into the powder transport pipe 6, and due to the pressure of the compressed air supplied from the compressed air supply port 5, the casting sand collecting can located below the waste material separating / re-accumulating device 9. It is pumped up to 24.

Next, by the processing in the deburring device 1b and the sluice cutting device 1c, the cutting chips C and the cutting pieces D generated from the work 1e pass over the chutes 3b and 3c provided below the respective devices and become waste materials. It is discharged onto the conveyor 8. In addition, the casting sand B and the cutting debris C generated during the processing of the work 1e by the sand removal device 1a, the deburring device 1b, and the sluice cutting device 1c and adhered to the work 1e and the handling device 1d, and the above-described deburring device 1b And a part of the cutting chips generated at the time of cutting in the gate cutting device 1c,
Although the system is widely scattered throughout the casting finishing system 1, since the system is installed on the lattice floor plate 2, the casting sand B and the cutting chips C pass through the lattice floor plate 2 and gradually pass through the under floor chute 7. Are discharged onto the waste material conveyor 8 while being collected.
At this time, the handling device 1d may be an industrial robot, a manipulator, or a known transport conveyor.

The waste material conveyor 8 has a front end inclined upward,
The casting sand B, the cutting chips C, and the cut pieces D discharged on the conveyor are continuously transported to the waste material separation / re-integration device 9 and charged from the top of the device. In the waste material separation / re-integration device 9, the plates 10a to 10f and the plates 11a to
11e and the fixed bar 10 combined so as to be alternately arranged, and among the sand B, the cutting chips C, and the cut pieces D put on the swinging bar 11, the casting sand B and the cutting chips C are fixed. Pier 10
Then, it passes through the gap formed by the swing bar 11 and is discharged onto the swing plate 21 located below. At this time, swinging bar 1
1 has a front end supported by a pin 13, a link 14 and a pin 15, and a rear end supported by an eccentric boss 18 by a pin 18a provided at an appropriate distance from the rotation center thereof. When the rotating device 18 is rotated by the rotating device 16 through the chain 17 in the same direction as the rotating device 16, the swinging bar 11 swings regularly and continuously up and down, up and down, and The clogging by the casting sand B and the cutting chips C in the gap formed by the moving rail 11 is prevented.

The diaphragm 2 on which the casting sand B and the cutting chips C are loaded
Reference numeral 1 denotes a cam roll 2 at a position where it can come into contact with one or more cam plates 18b, 18c installed on the eccentric boss 18 described above.
The oscillating plate 21 is pivoted downward by the pivoting action of the eccentric boss 18 with the front end pin 19 as a fulcrum. The diaphragm 21 has one end connected to the base 12 via a tension spring 20. The cam plates 18b and 18c and the cam roll 2
When the contact of 2 is stopped, it is momentarily rotated upward by the elastic force of the tension spring 20 and collides with the diaphragm receiver 23. This operation is performed continuously while the rotational movement of the eccentric boss 18 is continued, so that the vibration action of the diaphragm 21 is formed, and the casting sand B and the cutting chips C loaded on the diaphragm 21 by the action are formed. Among them, the casting sand B passes through a large number of holes formed in the diaphragm 21 and is accumulated in the casting sand collecting can 24 located below. Further, the cutting chips C remaining on the vibration plate 21 are conveyed to the front end portion by a conveying action caused by the downward inclination of the vibration plate 21 and a continuous vibration action, and are accumulated in the cutting chip collection can 25.

In this embodiment, the oscillating movement of the oscillating bar 11 and the oscillating action of the diaphragm 21 are generated by an eccentric boss 18 which is rotated via a chain 17 by the same rotating device 16. However, as shown in FIG. 6, a vibration action may be applied to the vibration plate 21 by the vibration motor 28. On the other hand, cut piece D
Are plates 10a to 1 forming a fixed bar 10 and a swing bar 11
0f and plates 11a to 11e, which remain on the crosspiece, but the above-mentioned regular swinging motion of the swinging crosspiece 11 simultaneously produces a conveying action for the cut piece D on the crosspiece, and the cut piece D It is conveyed on the fixed bar 10 toward the steeply inclined portion 27 on the front end side of the bar, and when it reaches the steeply inclined portion 27, it slides or rolls on the upper surface of the portion and is collected in the cut piece collection can 26 installed below. , Casting sand B, cutting chips C, cut pieces D
Has been completely separated and reintegrated.

In the present invention, in order to obtain the conveying action for the cut piece D on the fixed bar 10, the upper surface of the swing bar 11 is higher than the upper surface of the fixed bar 10 when the upper surface of the swing bar 11 is at the highest position. , When in the most lowered position,
When the eccentric boss 18 is installed at a position lower than the upper surface of the fixed bar 10 and the rotation direction of the eccentric boss 18 is at the position where the swing bar 11 is at the highest position, the direction of the tangential force of the boss is toward the front end. Must be set to occur.

[0018]

According to the present invention, it is possible to reliably collect waste materials generated in each processing step, waste materials scattered during inter-process handling, and cutting chips scattered during the cutting process, throughout the finishing process after casting. , And productivity is improved by eliminating daily cleaning work and reducing equipment trouble due to accumulated waste material. In addition, the recovered waste material is efficiently and economically separated and re-collected, so that noise at the time of separation can be minimized.

[Brief description of the drawings]

FIG. 1 is a view showing an entire configuration of a waste material recovery / separation / re-integration method in a post-casting finishing step according to the present invention;

FIG. 2 is a diagram showing a detailed configuration of a waste material separating / re-integrating apparatus according to the present invention;

FIG. 3 is a plan view of a fixed bar and a swing bar of the waste material separating / re-accumulating apparatus according to the present invention;

FIG. 4 is a plan view of a diaphragm,

FIG. 5 is a view showing another embodiment of the method of vibrating the diaphragm.

FIG. 6 is a diagram showing a configuration of a conventional technique.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Post-casting finishing system 1a Destroying device 1b Deburring device 1c Sluice cutting device 1d Handling device 1e Work 2 Lattice floor plate 3a, 3b, 3c Chute 4 Casting sand crusher 4a, 4b Cylindrical body 5 Compressed air supply port 6 Powder transport pipe 7 Underfloor chute 8 Waste material conveyor 9 Waste material separation / reintegration device 10 Fixed bar 11 Swing bar 12 Base 13, 15, 19 Pin 14 Link 16 Rotating device 17 Chain 18 Eccentric boss 20 Tension spring 21 Vibrating plate Reference Signs List 22 Cam roll 23 Vibration plate receiver 24 Casting sand collecting can 25 Cutting waste collecting can 26 Cutting piece collecting can 27 Steeply inclined portion 28, 36 Vibration motor 29 Inner bottom surface 30 Receiving box 31 Projecting body 32 Casting sand separating plate 33 Vertical wall 34 Fixed Base 35 Spring 37 Casting sand discharge path 38 Casting sand discharge port 39 Casting sand crushing part X Casting product A Casting sand B Sand C shavings D cut pieces E granular sand

Claims (2)

[Claims] 1. A post-casting finishing process for a cast product comprising a sand remover, a deburring device, a sluice cutting device, a handling device and the like for finishing a workpiece after casting. A device for crushing the sand mass, wherein the granular sand discharged from the device is conveyed to a waste material collection / separation / re-integration facility provided outside the system via a powder transport pipe, and the deburring device, Below the cutting device and the handling device, in the post-casting finishing step, a waste material conveyor for disposing the discharged cutting chips, cut pieces and foundry sand to the waste material separating and collecting facility is provided. Waste material collection / separation / re-accumulation equipment. 2. A downwardly inclined combination of a fixed bar formed at the uppermost portion by a plurality of parallel plates and a swing bar similarly formed by a plurality of parallel plates and capable of swinging up and down and up and down. The lower part of the diaphragm, which has a large number of pores on its surface and can vibrate diagonally up and down, is installed below it. 2. The waste material separating / re-accumulating device according to claim 1, wherein the cut pieces are separated by a beam and an oscillating beam, and the casting sand and the cutting chips are separated and re-accumulated by a diaphragm. Waste material recovery / separation / re-integration equipment in post-cast finishing process.