JPH0810639A - Spring mattress separating method and apparatus therefor - Google Patents

Abstract

PURPOSE:To efficiently separate springs and a surface layer of a spring mattress without making the springs and the surface layer adhere to each other. CONSTITUTION:Jetting apparatus stands 2 and air sucking stands 3 are installed in both sides of a table 1 and only a surface layer D of a mattress A is cut into a large number of small pieces by jetting water jet from the jetting apparatuses 16 installed in the jetting apparatus stands 2. Then, the air sucking stands 3 are moved along the mattress A and air suction is carried out for the cut surface layer D to separate the surface layer D from springs B.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention relates to a method and apparatus for separating a spring and a surface layer from a spring mattress.

[0002]

2. Description of the Related Art FIG. 7 shows a processing system for separating and recovering resources such as iron and non-ferrous metals from waste such as bulky refuse.

In FIG. 7, reference numeral 31 is a coarse crusher (shredder) that applies a rotary impact force to waste to crush it roughly. The waste crushed by the coarse crusher 31 is finely crushed again by the crusher 32. After being crushed, it is sent to the magnetic separator 33 to separate the iron content inside. The separated waste is then sent to the wind power sorter 34 or the non-ferrous metal sorter 35 and separated into non-combustible dust, combustible dust, non-ferrous metal and the like.

In the processing system as described above, the coarse crusher 31 and the crusher 32 are equipped with a large number of rotary blades, and the material is sheared and crushed between the rotary blades. Elastic materials such as soft materials and springs are difficult to shear, and have the property that the machine tends to be overloaded due to the flexibility and elastic repulsion of the material.

Therefore, when a mattress in which a spring is covered with a soft surface layer such as sponge or felt is put into the above processing system, it takes time to crush with the coarse crusher 31 or the crusher 32, and an overload trouble occurs. Is likely to occur.

When a mattress in which a spring and a surface layer are mixed is crushed at the same time, sponge, felt, etc. are strongly entangled with the surface of the spring, and when the magnetic spring separates the iron spring, The springs will separate with the layers still attached. However, there is a drawback in that the iron content to which the soft material adheres cannot be reprocessed and cannot be recycled as a resource.

Further, the elastic spring is liable to remain in a long shape even if it is crushed, and there is a problem that the machine is easily caught by a conveyor such as a conveyor during transportation in the system.

In order to deal with the above-mentioned problems, conventionally,
A method has been considered in which the mattress is cut using a guillotine-type shearing machine in the previous step, and the cut product is put into a crusher for processing, but overloading trouble also occurs when cutting with such a shearing machine. However, there was a problem that the guillotine blade was likely to be chipped or accidentally damaged.

The present invention has been made to solve the above problems, and is a method for efficiently and reliably separating the mattress spring and the surface layer from each other without causing overloading of the machine, and the separating work of the machine. The purpose of the present invention is to provide a separation device that can be used for various purposes.

[0010]

In order to solve the above-mentioned problems, the separation method of the present invention allows a high-pressure fluid jet to penetrate through a mattress, and the fluid jet cuts only the surface layer of the mattress to separate it from the spring. I decided to do it.

In the above method, after cutting the surface layer, the surface layer can be sucked by air to be separated from the spring.

Further, in the separating device of the present invention, the injector moving means for moving the injector of the fluid jet in an arbitrary horizontal direction with respect to the table on which the mattress is placed horizontally, and the air suction box in the horizontal direction. That is, the structure is provided with an air suction means for moving to.

[0013]

[Operation] High-pressure fluid jets such as water jets
The surface layer of a soft mattress such as sponge and felt can be easily penetrated and cut, but elastic metal materials such as springs have the characteristic that the metal material escapes or deforms due to the pressure and remains uncut. is there.

Therefore, by moving the fluid jet through the mattress, only the surface layer is cut,
Separated from the spring.

The surface layer thus separated can be easily sucked up by air suction and separated from the spring.

[0016]

Embodiments of the present invention will be described below with reference to the accompanying drawings. As shown in FIGS. 1 to 3, the separating apparatus of this embodiment has a table 1 on which a mattress A is placed horizontally.
Is provided with an injector support base 2 and an air suction base 3 for supporting the water jet injector, and the injector support base 2 and the air suction base 3 are arranged on the guide rails 4, 4 on the upper surface of the table 1. Of the table 1 and the drive of the feed mechanisms 5 and 6 using the ball screw shaft so as to be movable in the longitudinal direction of the table 1.

The injector support base 2 is mounted on the upper part of the portal frame 7 through the horizontal guide shaft 8 and the feed shaft 9 and the sliding base 1 is provided.
0 is provided so as to be slidable in the lateral direction, and the sliding table 10 has
A lift 13 using the guide rail 11 and lift cylinder 12
Is mounted so that it can move up and down. Further, a water jet injector 16 and a pump unit 17 for supplying super-high pressure water to the injector 16 are mounted on a tool post 15 extending forward from the lift table 13.

The above water jet pump unit 1
Numeral 7 supplies water to the injector 16 at an ultrahigh pressure of about 3000 to 4000 kg / cm ² , and the injector 16 mixes the water with an abrasive such as sand or silicon carbide and blows it out as a jet stream. As a result, soft materials such as sponges and felts are cut at a high speed.

In the above-mentioned injector support base 2, the jet injector 16 is moved in two horizontal directions orthogonal to the mattress A on the table 1 by the movement of the gate frame 7 itself and the lateral movement of the slide base 10. It becomes movable.

On the other hand, the air suction table 3 has a gate-shaped frame 18
Inside, the upper suction box 19 facing the upper surface of the mattress A and the two side suction boxes 20 and 21 facing both side surfaces of the mattress A are provided.
A vacuum tube 22 connected to the upper part of 0 and 21 is connected to a device for collecting the sucked surface layer and an air suction device (not shown).

The basic structure of the mattress A with springs to be separated is, as shown in FIG. 4, a large number of springs B arranged horizontally and vertically and a thin metal wire C.
Are formed by covering the upper and lower surfaces and side surfaces of the spring B with a surface layer D. The surface layer D usually has a structure in which a plurality of soft materials such as sponge material and felt material are laminated. There is.

The separating apparatus of this embodiment has the above-mentioned structure, and the mattress separating method will be described below.
As shown in FIGS. 1 and 4, the mattress A is mounted on the base 26 of the table 1 in a compressed state using an arbitrary fixing means. In this state, the tool rest 15 is moved up and down, and the nozzle position of the jet injector 16 is set so as to face the upper surface position of the mattress A.

Next, while the water jet is being ejected from the injector 16, the injector support base 2 itself is moved, and the upper surface of the mattress A is cut a plurality of times in the longitudinal direction at a predetermined pitch. Next, the tool rest 15 is moved by moving the slide base 10.
The direction of movement is changed to 90 degrees, and the mattress A is cut a plurality of times in the short direction at a predetermined pitch in the same manner as above.

In the cutting of the mattress A by the above water jet, the high pressure water jet is used for the mattress A.
The upper and lower soft surface layers D can be cut at the same time by moving the upper and lower surfaces in a vertically penetrating state. on the other hand,
When the water jet hits the spring B, which is hard and has elastic force, it is elastically deformed by the pressure of the water jet or escapes in the lateral direction, and the jet does not effectively act on the metal surface, so that it is not cut. In particular, since the spring B on the lower surface is on the back side of the spring on the upper surface with respect to the water jet,
The contact of the water jet becomes weak and almost no cutting action occurs.

Therefore, due to the movement of the water jet injector 16, only the surface layer D of the mattress A is cut in the vertical and horizontal directions to be divided into a large number of strip-shaped small pieces d, and the spring B and the metal wire C are cut. Surface layer D without cutting
Be separated from.

When the cutting operation of each surface layer D is completed as described above, the injector support base 2 is retracted to one end side of the table 1, and then the air suction base 3 is moved onto the mattress A to move the surface layer. Perform the suction work of D.

In this work, since the surface layer D is separated from the spring B and the metal wire C and is disassembled into a large number of small pieces, the surface layer D is disassembled in each suction box 1
It is easily blown up by the suction action inside 9, 20, 21 and is collected by the collecting device through the vacuum tube 22.

Therefore, when the air suction table 3 passes over the mattress A, only the surface layer D of the mattress is sucked, and only the spring B and the metal wire C are left on the table 1, and the purity is high. It can be recovered as iron. In such suction work of the surface layer D, a rotary brush is incorporated in each of the air suction boxes 19, 20, 21.
The surface layer D may be forcibly lifted up by the rotating brush and air may be sucked, whereby the surface layer D and the spring B can be reliably separated and collected.

In the above embodiment, the water jet is penetrated through the mattress A to cut the front and back surface layers D at the same time. However, due to interference between the water jet and the spring B, the back surface layer D When the cutting becomes insufficient, the mattress D after cutting on the front side may be turned over and the surface layer on the back side may be cut.

Further, in the above example, after cutting the mattress A by the water jet, the surface layer D was air-sucked and separated from the spring B. However, after cutting the surface layer D, the mattress was put into a crusher, and as shown in FIG. The surface layer and the spring may be separated through a treatment system as shown in FIG.

Further, in the above example, only one jet injector 16 is provided on the injector support base 2, but a plurality of jet injectors are attached to the tool rest 15 at a predetermined pitch, and the surface layer D of the mattress A is attached. May be simultaneously cut by a plurality of water jets.

[0032]

As described above, according to the present invention, since only the surface layer of the mattress is cut and separated from the spring, the separating work can be performed efficiently and reliably, and the working efficiency can be greatly improved.

Further, in the separation by the fluid jet, since the separation can be carried out in the state where the surface layer is not attached to the spring at all, there is an effect that iron having high purity can be recovered.

[Brief description of drawings]

FIG. 1 is a front view showing a separation device according to an embodiment.

FIG. 2 is a side view taken along the line II-II in FIG.

FIG. 3 is a partially longitudinal side view taken along the line III-III in FIG.

FIG. 4 is a side view, partly in vertical section, showing the above cutting work.

FIG. 5 is a partially longitudinal side view showing the above suction work.

FIG. 6 is a perspective view showing the mattress after cutting.

FIG. 7 is a schematic diagram showing a waste treatment system.

[Explanation of symbols]

 1 table 2 injector support 3 air suction table 10 sliding table 13 lifting table 15 tool post 16 jet injector 17 pump unit 19 upper suction box 20, 21 side suction box 22 vacuum tube A mattress B spring C metal wire D Surface layer

Claims (3)

[Claims] 1. A method for separating a spring-loaded mattress in which a high-pressure fluid jet is passed through a mattress, and the fluid jet cuts only the surface layer of the mattress to separate it from a spring. 2. The method for separating a spring-loaded mattress according to claim 1, wherein after cutting the surface layer, the surface layer is suctioned by air to separate the surface layer from the spring. 3. An injector moving means for moving a fluid jet injector in an arbitrary horizontal direction with respect to a table on which a mattress is placed horizontally, and an air suction means for horizontally moving an air suction box. Separation device for mattress with spring.