JPH0810636A - Method and apparatus for separating mattress with spring - Google Patents

Abstract

(57) [Summary] [Purpose] In a mattress with springs, to enable efficient separation without adhering the spring and the surface layer. [Structure] A cutter support base 2 and an air suction base 3 are arranged on both sides of a table 1, and a cutting cutter 16 attached to the cutter support base 1 cuts only a surface layer D of a mattress A into a large number of small pieces. Next, the air suction table 3 is moved along the mattress A, air is sucked while the surface layers D are being scratched by the wire brushes 23 and 24, and separated from the spring 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.

Further, 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 spring, which is iron, is separated by a magnetic separator, the surface of the spring is separated. The springs will separate with the layers still attached. However, there is a drawback in that the iron content to which the soft material is attached 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, an operator manually cuts the surface layer of the mattress and separates the surface layer from the spring. However, there is a problem that work efficiency is low.

The present invention has been made to solve the above problems, and provides a method for efficiently and surely separating a spring and a surface layer of a mattress, and a separating device capable of mechanically performing the separating work. Is intended.

[0010]

In order to solve the above-mentioned problems, the separation method of the present invention is to cut the surface layer of the mattress covering the spring into a plurality of small pieces by a cutting cutter and suck the cut surface layer. The method is to separate it from the spring.

Further, according to the separating apparatus of the present invention, with respect to the table on which the mattress is placed horizontally, the cutter moving means for moving the cutting cutter in the horizontal and vertical directions and the air for moving the air suction box in the horizontal direction. The suction means is provided.

In the above separating apparatus, it is desirable that the air suction box is provided with a rotating brush that scratches the surface layer of the mattress.

[0013]

In the above separating method and apparatus, only the surface layer of the mattress is cut into a plurality of small pieces so that the surface layer can be sucked by air, and the surface layer is sucked up by air suction and separated from the spring.

[0014]

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.
1 and 2. A gate-shaped cutter support base 2 and an air suction base 3 are provided on both sides of the table 1, and the cutter support base 2 and the air suction base 3 guide the guide rails 4 and 4 on the upper surface of the table 1 and the ball screw shaft. The table 1 is driven by driving the feeding mechanisms 5 and 6
It is movable in the longitudinal direction.

The cutter support base 2 is mounted on the upper part of the gate-shaped frame 7 via a horizontal guide shaft 8 and a feed shaft 9 to make the slide base 1 movable.
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. Also, the elevator 13
A turret 15 is attached via a oscillating motor 14 so that the turret can be oscillated within a range of 90 degrees. At the lower end of the turret 15, a disc-shaped cutting cutter 16 and the cutting cutter 16 are attached.
A drive motor 17 for rotating the motor is attached.

The cutting cutter 16 is a disk-shaped grindstone or a hard metal disk with a large number of saw blades attached to the outer circumference thereof. The soft surface layer such as sponge and felt of the mattress A is spun at high speed. You can disconnect with.

In the above-mentioned blade support base 2, the gate type frame 7
The cutting cutter 16 is moved by the movement of itself and the lateral movement of the slide base 10.
Can move in two horizontal directions orthogonal to the mattress A on the table 1. In this case, the direction of the cutting cutter 16 can be switched between the longitudinal direction and the lateral direction of the mattress A by rotating the tool rest 15 in the 90 degree direction by the swinging motor 14. In addition, the lift 13
When the tool rest 15 is moved up and down using, the cutting cutter 16 moves up and down along the side surface of the mattress A, and the side surface can be cut.

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).

Further, rotary wire brushes 23, 24, 25 which are in sliding contact with the upper surface and both side surfaces of the mattress A are mounted inside the suction boxes 19, 20, 21, respectively.
Each wire brush is in sliding contact with the surface layer of the mattress A in a crimped state.

The basic structure of the mattress A with springs to be separated is, as shown in FIGS. 1 and 4, a large number of springs B arranged vertically and horizontally in the horizontal direction and a thin metal wire C and the like. The upper and lower surfaces and the side surfaces of the spring B are connected to each other and are covered 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.

The separating apparatus of this embodiment has the structure as described above, 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 cutting edge position of the cutting cutter 16 is set at the upper surface position of the mattress A. In this case, as shown in FIG. 4, the cutting edge of the lower end of the cutting cutter 16 is positioned so as to be lower than the upper surface of the mattress A by the thickness of the surface layer D, so that the cutting cutter 16 cuts only the surface layer D of the mattress A. Set to.

Next, while the cutting cutter 16 is being rotated, the cutter supporting base 2 and the sliding base 10 are alternately moved to cut the surface layer D on the upper surface of the mattress A at a predetermined pitch a plurality of times in the longitudinal direction. To do. Next, after rotating the cutting cutter 16 in the direction of 90 degrees by the swinging motor 14, the cutter support base 2 and the slide base 10 are alternately moved in the same manner as described above to move the mattress A to a predetermined pitch. Cut multiple times in the short direction. As a result, as shown in FIG. 6, the surface layer D on the upper surface of the mattress A is cut in the vertical direction and the horizontal direction to be divided into a large number of strip-shaped small pieces d, which are separated from the connection with the spring B.

Next, the cutting cutter 16 is moved to the positions on both side surfaces of the mattress A, and while the position of the cutting cutter 16 is shifted in the longitudinal direction by the movement of the cutter support base 2, the cutting cutter 16 is operated by the operation of the lifting cylinder 12. By moving up and down, the surface layers D on both side surfaces of the mattress A are cut at a predetermined pitch. In this case, the surface layer D on the side surface side of the mattress A has a spring B or a metal wire C on the upper surface side.
Since it is connected at a large number of points, it is preferable to cut at a pitch smaller than the upper surface side and separate from the spring B.

When the cutting operation of each surface layer D is completed as described above, the cutter 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 D. Perform the suction work.

In this work, by moving the air suction table 3 onto the mattress A, the wire brushes 23 and 2 assembled inside the upper suction box 19 and the side suction boxes 20 and 21.
Numerals 4 and 25 slidably contact the upper surface and both side surfaces of the mattress A in a pressure-bonded state to forcibly scrape the cut surface layers D. As a result, the surface layer D is completely separated from the spring B and the metal wire C, and the surface layers D are easily sucked up by the suction action inside the suction boxes 19, 20, 21 in a disjointed state. The suctioned surface layer D is the vacuum tube 2
It is collected by the collector through 2 and collected.

In this way, when the air suction table 3 passes through the mattress A, the surface layers D on the upper surface and both side surfaces of the mattress A are sucked and separated from the spring B, and the upper surface and both sides of the mattress A are separated. The spring B and the metal wire C are exposed on the surface.

Then, the mattress A is turned upside down, the lower surface is turned upside down, and the side surfaces not separated are set on the table 1 with the short side direction of the table 1, and the cutting work and the suction work similar to the above are performed. As a result, all the surface layer D of the remaining mattress A is sucked, and only the spring B and the metal wire C remain on the table 1, so that highly pure iron can be recovered.

In the above example, the cutter support base 2 has one
Although only one cutting cutter 16 is provided, a plurality of cutting cutters may be attached to the tool rest 15 at a predetermined pitch so that the surface layer D of the mattress A can be simultaneously cut by the plurality of cutters.

[0029]

As described above, according to the present invention, only the surface layer of the mattress is cut, and the cut surface layer is sucked by air to be separated from the spring, so that the separation work can be efficiently and reliably performed. The efficiency can be greatly improved.

Further, since the iron and the soft material are not crushed by mixing with the crusher and can be separated without the surface layer adhering to the spring, there is an effect that the iron with 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 cutter support base 3 air suction base 10 sliding base 13 lift base 15 turret 16 cutting cutter 19 upper suction box 20, 21 side suction box 22 vacuum tube 23, 24, 25 wire brush A mattress B spring C metal Line D surface layer

Claims (3)

[Claims] 1. A method for separating a mattress with a spring, wherein a surface layer of a mattress covering a spring is cut into a plurality of small pieces by a cutting cutter, and the cut surface layer is sucked and separated from a spring. 2. A spring provided with cutter moving means for moving the cutting cutter horizontally and vertically with respect to a table on which the mattress is placed horizontally, and air suction means for horizontally moving the air suction box. Separation device for mattresses. 3. The separation device for a spring-loaded mattress according to claim 2, wherein the air suction box is provided with a rotating brush that scratches the surface layer of the mattress.